Recent developments in the fungal transformation of steroids
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Transcript of Recent developments in the fungal transformation of steroids
REVIEW ARTICLE
Recent developments in the fungal transformation of steroids
NASSER NASSIRI-KOOPAEI & MOHAMMAD ALI FARAMARZI
Department of Pharmaceutical Biotechnology, Faculty of Pharmacy and Biotechnology Research Center, Tehran University of Medical Sciences, Tehran, Iran
Abstract Steroids constitute a vital part of the active ingredients in pharmaceuticals and intermediates used to produce medicines, and their application in chemical and agrochemical fi elds is also valued. The complex stereochemistry of steroids requires attention to regio- and stereoselectivity of the reaction during preparation, and therefore, biocatalytic methods are appro-priate for their production. This work reviews the recent application of fungi for the transformation of different steroid substrates, new biotransformation techniques, recently characterized reactions, and practical aspects, covering the period from 1990 to 2014. The future prospects of fungal biotechnology and biotransformation in the biopharmaceutical indus-try are also considered.
Keywords: Biotransformation , steroid , bioconversion , biocatalysis , fungus
Correspondence: Mohammad Ali Faramarzi, Department of Pharmaceutical Biotechnology, Faculty of Pharmacy and Biotechnology Research Center, Tehran University of Medical Sciences Tehran, Iran. Tel: � 98-21-66954712. Fax: � 98-21-66954712. E-mail: [email protected]
(Received 16 January 2014 ; revised 18 April 2014 ; accepted 20 February 2015 )
Introduction
Steroids are a remarkable class of chemical com-pounds found throughout the animal and plant king-doms; this class includes sterols, such as cholesterol and ergosterol, bile acids, and a number of steroid hormones (Wang et al. 2002; Faramarzi et al. 2008a; Holland 2008). Modern scientifi c research on steroid chemistry and biochemistry began in the early 20th century. Research efforts in this fi eld were stimulated in the 1950s, with the discovery of the pharmaco-logical effects of cortisol and progesterone, two endogenous steroids, and with the identifi cation of the 11 α -hydroxylation activity of a Rhizopus species, a critical step in the development of the practical synthesis of biologically useful steroids. Growing numbers of microbial biotransformations of steroid compounds have been reported (Schmauder et al. 1991; Kardinahl et al. 2006; Whittall & Sutton 2010; Bhatti and Khera 2012; Donova and Egorova 2012), with an emphasis mainly on steroid hydroxylation, Δ 1 -dehydrogenation, and sterol side-chain cleavage. Many of these biotransformation reactions, in combination with chemical synthesis, have enabled researchers and industrialists to produce large quantities of steroid compounds (Liu et al. 2006;
Wuts et al. 2008; Dewick 2009; Faramarzi & Sadighi 2013). Whole-cell biotransformation reduces the production cost of steroids as it removes the need for isolation, purifi cation, and stabilization of pure enzymes (Bortolini et al. 1997; Riva 2001). Whole-cell biocatalysts also facilitate cofactor regeneration and concurrent reactions in a single fermentation cycle. The stereochemical aspects of biotransforma-tions are also attractive, since these enzymes can be good tools for selective chemical reactions (Bisogno et al. 2007).
Biotransformation-derived steroids are used for a wide range of pharmacotherapeutic purposes, such as anti-infl ammatory, immunosuppressive, proges-tational, diuretic, anabolic, and as neurosteroids, and also as contraceptive agents (Shahidi 2001; Brueggemeier et al. 2003). Researchers continue to discover more useful steroid compounds and also to isolate microorganisms that can perform the struc-tural transformations desired. The steroid biotrans-formation pathways of fungi are currently being developed through the use of genetic engineering techniques to manipulate metabolic pathways. In addition, knowledge on steroid transport phenomena across membranes is being expanded. Fermentation
Biocatalysis and Biotransformation, 2015; 33: 1–28
ISSN 1024-2422 print/ISSN 1029-2446 online © 2015 Informa UK, Ltd.DOI: 10.3109/10242422.2015.1022533
2 N. Nassiri-Koopaei & M. A. Faramarzi
media engineering, better lipophilic substrate solubi-lization, fungal immobilization, downstream process advancement, and design of continuous fermentation processes are of interest at the process design level (Kardinahl et al. 2006). Mahato and colleagues comprehensively described biotransformation reac-tions before 1990 (Mahato and Mukherjee 1984; Mahato and Banerjee 1985; Mahato et al. 1989); in this paper, fungal biotransformation reactions inves-tigated from 1990 to date are reviewed.
Chemistry and structure
Steroid molecules possess a common chemical skeleton of four fused rings consisting of three six-membered rings and a fi ve-membered ring. This hydrocarbon scaffold is a cyclopentanoperhydro-phenanthrene, which incorporates the three rings of phenanthrene (rings A, B, and C) and the cyclopen-tane ring (ring D) (Figure 1). The most common steroids and some of the major sites of biotransfor-mation reactions are depicted in Figures 2 and 3, respectively. Research on the microbial transforma-tion of steroids intensifi ed after World War II, when the anti-infl ammatory property of cortisone was discovered. Effi cient synthesis of corticosteroids was then required for scaling-up synthesis as well as structure-activity relationship studies. One of the particularly challenging conversions was the trans-position of the 12 α -hydroxy group in bile acid to C 11 , which required a 12-step reaction. In 1952, Peterson and Murray from Upjohn (Vasic-Racki 2006) reported the fi rst patented process of direct 11 α -hydroxylation of progesterone through the use of Rhizopus arrhizus and Rhizopus nigricans . One
unique feature of research on steroid chemistry has been the equivalent contribution to the fi eld from both academia and the pharmaceutical industry.
Chemical synthesis vs preparation through biotransformation
Chemical conversions may compromise the struc-tural integrity of the steroid, as many reagents may degrade one or more of the rings. Protection and deprotection are often needed to achieve the required regiochemical and stereochemical outcomes, while biotransformation processes need neither protection nor the use of hazardous reagents, and are therefore safer for working staff and the environment. Mild reaction conditions, and selective and specifi c reac-tions are key features of the biotransformation pro-cess, where11 α -hydroxylation activity by Rhizopus species, ring A aromatization, side-chain cleavage, and isomerization are classic fungal reactions. However, in most cases, a combination of chemical transformation and biotransformation is chosen (Mahato and Mukherjee 1984; Burger and Wolff 1997; Fernandes et al. 2003; Silva et al. 2011; Bhatti and Khera 2012).
Methods for biotransformation of steroids
Biotransformation in aqueous media and biotransformation facilitators
The major limitations on fungal steroid transforma-tion are low water solubility, dispersibility, and powder aggregation (Goetschel and Bar 1992). Increasing the permeability of viable cells has been considered as a remedy using substrate micronization, fed-batch systems, permeabilizing the cell wall using antibiot-ics, surfactants, or cyclodextrins by forming inclu-sion complexes, and organic solvents (Ni and Chen 2004). Compounds such as vancomycin, glycine, protamine, polymyxin B, nonapeptide, ethambutol, bacitracin, polyethyleneimine (PEI) (Malaviya and Gomes 2008), Tween (Smith et al. 1989), Triton X-110 and X-114 (Wang et al. 2004a; Wang et al. 2004b; Wang et al. 2005), and lecithin (Wang et al. 2002) have been assessed in this regard. These substances transfer steroids across the cell wall.
Biotransformation using immobilized biocatalysts
Whole-cell immobilization has been widely applied in fungal biotransformation of steroids to minimize loss of enzyme activity and maintain longer half-life (Ahmad et al. 1992; Mahato and Garai 1997; Fernandes et al. 2003; Quezada et al. 2008;
R1
R2R3
CyclopentanoperhydrophenanthreneCholestane (C27): R1= R2= CH3, R3= CH(CH3)(CH2)3CH(CH3)2
Pregnane (C21): R1= R2= CH3, R3= CH2CH3
Androstane (C19): R1= R2= CH3, R3= HEstrane (C18): R1: H, R2: CH3, R3: HGonane (C17): R1= R2= R3= H
A B
C D1
2
3
45
6
7
8
910
11
1213
1415
16
17
Figure 1. Basic steroid structure and structures of steroid stem names.
Fungal transformation of steroids 3
Carballeira et al. 2009). Viable immobilized cells provide advantages over conventional fermentation methods, including high volumetric reaction rates, high biomass retention in the reactor in continuous
processes, convenient downstream processing, enhanced operational and storage stabilities, reus-ability of immobilized biocatalysts, and increase in product yield (Junter and Jouenne 2004; Adrangi & Faramarzi 2013; Ghasemi et al. 2013; Mogharabi & Faramarzi 2014). Different immobilization tech-niques have been employed for whole-cell steroid biotransformation by bacteria and algae (Arabi et al. 2010; Saab et al. 2010). These include entrapment, adhesion to solid carrier surfaces, and micro-encapsulation. Synthetic polymers such as polyure-thane foams, photo-crosslinked resins, silicon-based polymers, and calcium-alginate beads (Ca-alginate) coated with a polyurea layer have been exploited (Leon et al. 1998). Kulkarni et al. (1998) immobilized Aspergillus niger NCIM 589 spores on high-density polyethylene (HDPE), using PEI for 11 α -hydroxylation of progesterone. Manosroi et al. (2008) studied the
HO
O
HO
OH
O
OH
O
O
O
OH
HO
OH
Cholesterol
Cortisol Progesterone
Testosterone Estradiol
Figure 2. Chemical structures of common steroids.
O
O
3-Reduction
6α/β-Hydroxylation
7α/β-Hydroxylation
14α/β-Hydroxylation
15α/β-Hydroxylation
12α/β-Hydroxylation9α/β-Hydroxylation
11α/β-Hydroxylation
1,2-DehyrdogenationSide chain cleavage
20-Reduction
8α/β-Hydroxylation
Δ4,5-Reduction
Figure 3. Major sites of biotransformation reactions.
4 N. Nassiri-Koopaei & M. A. Faramarzi
enhanced production of 17 α -hydroxyprogesterone from progesterone using the hydroxypropyl- β -cyclodextrin complexation technique by biotrans-formation with Curvularia lunata ATCC 12017. Houng et al. (1994) developed a novel technique of cell immobilization for increasing substrate partition to the gel matrix, by coating a thin layer of polyurea on the surface of Ca-alginate beads for bioconver-sion of progesterone to 11 α -hydroxyprogesterone by Aspergillus ochraceus, which was used by Chen et al. (1994). Peart et al. (2012) compared the transforma-tion reactions on 3 β ,17 β -dihydroxyandrost-5-ene using different free fungal cells with those carried out by macerated mycelia immobilized in Ca-alginate beads, and concluded that the latter method out-performed the traditional biotransformation. Wang et al. (1998) produced hydrocortisone from cortexolone-21-acetate using 11 β -hydroxylase from Absidia orchidis entrapped in Ca-alginate gel in a cosolvent-containing media, to increase the yield. They concluded that the process had better yield and could be applied in industry. Schlosser et al. (1993) studied the use of the free and Ca-alginate-immobilized Penicillium raistrickii i 477 cells for 15 α -hydroxylation of 13-ethyl-gon-4-en-3,17-dione. They also applied β -cyclodextrin, which increased the lipophilic sub-strate solubility and availability.
Biotransformations using free and immobilized enzymes
Some efforts have been devoted to isolate and char-acterize enzymes from fungal sources for industrial and research purposes (Petri č et al. 2010). Biotrans-formation enzymes can be regarded as suitable substitutes for production of active pharmaceutical ingredients, as they have a lower cost, are less time consuming and more environmentally friendly, while also being selective (Manosroi et al. 2007).
Enzymes are classifi ed into six classes, some of which are essential in biocatalytic processes. These classes include oxidoreductases, transferases, hydro-lases, lyases, isomerases, and ligases (Faber 2011). The main enzymatic classes underlying biotransfor-mation reactions in certain fungi are presented below.
Hydroxylases . Hydroxylases insert a hydroxyl group at a specifi c carbon atom of a steroid compound. They carry out the most prevalent class of fungal steroid biotransformation reactions (Bhosale et al. 2006). Fungal hydroxylation can introduce OH groups in a cost effective and reliable way, especially for adrenocortical hormone production (Holland 1999; Ni and Chen 2004; Borges et al. 2009). Dif-ferent fungi are capable of uniquely hydroxylating almost every carbon atom in the steroidal structure
(1 β , 2 β , 4 {on aromatic ring}, 5 α , 6 β , 7 α , 7 β , 9 α , 10 β , 12 α , 12 β , 14, 15 α , 15 β , 17 α , 19, 22, and 26), with 11 α , 11 β , and 16 α -hydroxylases providing the most commercial value (Faramarzi et al. 2003; Fer-nandes et al. 2003; El-Kadi and Mostafa 2004; Chen et al. 2007; Faramarzi et al. 2007; Yang et al. 2007; Faramarzi et al. 2008c; Kalbasi et al. 2009; Peart et al. 2011) (Scheme 1).
5 a -Reductases . Reductases, also known as 3-oxo-5 α -steroid 4-dehydrogenases, reduce the double bond in steroids such as androgens, estrogens, and bile acids. Penicillium spp. (for example, Penicillium decumbens , Penicillium chrysogenum , and Penicillium crustosum ) (Murray 2000; Cabeza et al. 1999) are some of the most well-established producers of this enzyme.
3 b -Hydroxysteroid dehydrogenases/ Δ 5 - Δ 4 -isomerases . The 3 β -hydroxysteroid dehydrogenase/ Δ 5 - Δ 4 isomerase (3 β -HSD) isoenzymes are responsible for the oxida-tion and isomerization of Δ 5 -3 β -hydroxysteroid pre-cursors into Δ 4 - ketosteroids, catalyzing an essential step in the formation of all classes of active steroid hormones (Simard et al. 2005; Hunter et al. 2009).
17 b -Hydroxysteroid dehydrogenases . 17 β -Hydroxys-teroid dehydrogenases (17 β -HSD) are pivotal in controlling the biological potency of steroid hor-mones by catalyzing oxidation or reduction at C 17 . 17 β -HSDs may also metabolize other substrates like alcohols, bile acids, fatty acids, and retinols (Adamski and Jakob 2001). A number of different fungi such as Candida tropicalis , Cryptococcus tsukubaensis , Saccharomyces cerevisiae , Hortaea werneckii , Trimato-stroma salinum , Cylindrocarpon radicicola , Cochliobolus lunatus , and Pleurotus ostreatus have been shown to produce 17 β -HSD (Itagaki and Iwaya 1988; Ri ž ner et al. 1996; Ri ž ner et al. 2001; Mindnich et al. 2004; Donova et al. 2005).
Steroid C-1/C-2 dehydrogenases . Steroid C-1/C-2 dehydrogenases are not so prevalent in fungi but Nectria haematococca ( Fusarium solani ) is regarded as an exception that is able to produce this enzyme and shows substrate specifi city (Ahmed et al. 1996).
C-17 – C-20 Lyase . C17 � C20 Lyase (C17, 20-lyase) is one of the key enzymes that are responsible for the biosynthesis of androgens in N. haematococca (Ahmed et al. 1996).
Oxidoreductases . Laccase is a widely known oxidase that catalyzes the reduction of ketones to alcohols. The enzyme has been used to remove estrogenic compounds from environmental samples (Tamagawa
Fungal transformation of steroids 5
et al. 2006; Ma et al. 2007; Lloret et al. 2010; Aghaie-Khouzani et al. 2012; Mogharabi et al. 2012; Ueda et al. 2012) (Schemes 2 and 3).
Some steroid-metabolizing enzymes, in particu-lar those of industrial importance, have been expressed in heterologous hosts (Kristan et al. 2007). 17 β -HSD has been expressed in recombinant E. coli allowing the whole cells or purifi ed enzyme to be used for specifi c reduction of 17-ketosteroids (for example, synthesis of androgenic anabolic molecules). Saccharomyces cerevisiae was also used to express a mammalian hydroxylase for stereospecifi c hydroxylation of dehydroepiandrosterone by Vico
et al. (2002). Modifying the specifi city of fungal steroid-transforming enzymes by site-directed muta-genesis is also proving to be an interesting approach.
New techniques for selective transformations
Fungal spores have been used to transform steroids, including 11 α -hydroxylation and 11 β -hydroxylation reactions with Aspergillus ohcraceus and Stachylidium theobromae , respectively (Wolken et al. 2003). Their ability to endure harsh conditions and toxic compounds makes using spores a practical alterna-tive to conventional microorganisms (Wolken et al.
O
OH
17α-Ethyl-19-nortestosterone 15α-Hydroxy-17α-ethyl-19-nortestosterone
CH3CH3
O
OHCH3CH3
OH
Fusarium culmorum
120 rpm, 3 days, 20 °C
O
O
OH
Rhizopus stolonifer
120 rpm, 10 days, 28 °C O
OH
OH
Oxandrolone 9α-Hydroxyoxandrolone
Acremonium strictum
150 rpm, 6 days, 25 °C O
OH
17α-Methyltestosterone
HO
OH
3,17β-Dihydroxy-17β-methylestra-1,3,5(10)-triene
OH
O
OH6β,17β-Dihydroxy-17β-methylandrosta-1,4-dien-3-one
OH
O
O
OH
Corynespora cassiicola
120 rpm, 5days, 30 °C
OH
O
O
OH
OH
Cortexolone 8β,17α-21-Trihydroxypregn-4-en-3,20-dione
+
Scheme 1. Hydroxylation reactions.
6 N. Nassiri-Koopaei & M. A. Faramarzi
2003). Lu et al. (2006) studied the effect of two-stage addition of the substrate cortexolone-21-ace-tate on the expression of cytochrome P450 and the production of hydrocortisone by Curvularia lunata CL-114. They concluded that this strategy was much better than the original one due to the improved induction of cytochrome P450 and therefore the yield of hydrocortisone. Fungi like yeasts have been investigated as development tools for the merger of biology and synthesis to produce targeted secondary metabolites that can introduce new applications (Siddiqui et al. 2012; Lu et al. 2013).
Biotransformation in two-phase systems
Aqueous organic two-phase systems are often applied to improve the yield of fermentations in which lipo-philic substrates and products are present (Leon et al. 1998; Cruz et al. 2001; Cruz et al. 2002; Faramarzi et al. 2008c; Arabi et al. 2009). Both substrate and product are contained in a water-immiscible organic phase, keeping the substrate concentration in the aqueous phase at a constant value and extracting the metabolic products, enabling simple recovery of product. Organic solvents should be non-toxic to the fungus and provide adequate partition and mass
transfer characteristics (Leon et al. 1998; Collins and Daugulis 1999; Wang and Dai 2010; Wu et al. 2011). Two-phase systems have been applied in biotransformations by bacteria and microalgae, but limited studies have been published regarding their application in fungal biotransformation (Nikolova and Ward 1992; Carvalho et al. 2009; Marques et al. 2010). Santhanam and Shreve (1994) studied the bioconversion of cortexolone by Curvularia lunata to examine the effects of solvents on multiphase bioconversion reactions. Recently, environmental concerns have prompted researchers to design new solvent systems to replace traditional organic sol-vents, which could jeopardize human health and ecosystems. In this regard, one breakthrough is the application of super critical fl uid technology in biotransformation reactions (Carvalho et al. 2009; Brandenbusch and Sadowski 2010).
Biotransformation in a cloud point system
Cloud point systems (CPS) prepared by using non-ionic surfactants, provide a micro-aqueous environ-ment to ensure the viability of cells and their enzymatic activity. Water vesicles containing the bio-catalyst are homogeneously dispersed in the surfac-
O
OH
Testosterone
O
O
OH
Chaetomium sp.
120 rpm, 9 days, 25 °C
O
HO
Penicillium lilacinum
150 rpm, 3 days, 25 °C O
O
ProgesteronePregnenolone
O
OH
19-Nortotestosterone
Absidia glauca
120 rpm, 3-7 days, 27 °C O
OH
19-Norandrostenedione
7β-Hydroxytestosterone
Scheme 2. Oxidation reactions.
Fungal transformation of steroids 7
tant-rich continuous phase. Therefore, toxicity, substrate inhibition, and the organic phase are sig-nifi cantly reduced. The biotransformation occurs within water vesicles containing the biocatalysts, and the product is extracted back into the continuous phase, protecting it from degradation (Wang et al. 2004a; Wang et al. 2005; Wang et al. 2008). Wang et al. (2004b) studied the transformation of choles-terol to androst-1,4-diene-3,17-dione and androst-4-ene-3,17-dione in a cloud point system, using Mycobacterium spp. NRRL B 3683. Limited studies are available on fungal biotransformation in cloud point systems.
Microemulsions and liposomes as alternative biotransformation systems
Loss of cell viability and low interfacial mass transfer area can limit biotransformations in organic media. Microemulsions signifi cantly increase the interfacial area mass transfer compared to biphasic systems. However, long exposure to the organic solvent in microemulsions decreases the bioactivity of the cells, resulting in lower productivity. Such adverse side effects can be solved, to some extent, using lipo-somes. Hence, liposomal media provide a good
alternative for performing steroid biotransformation with high productivity (Stefan et al. 2002).
Biotransformations performed on different sub-strates by fungal species and categorized based on their chemical reactions are depicted in Table I.
Commercial benefi t of therapeutic steroids produced by biotransformation
Steroids are widely used pharmaceuticals, and fun-gal hydroxylases and oxidoreductases have been used in their production, particularly in the production of anti-infl ammatory substances, e.g., 11 α -hydroxylase, 11 β -hydroxylase, and 5 α -reductase (Hu et al. 1995; Boynton et al. 1997; Cotillon and Morfi n 1999; Dray and Cotillon 1999). These enzymes can be used for the production of bile acids (7 α -hydroxylase), neurosteroids (5 α -reductase), cardioactive steroids (14 α -hydroxylase), androgens (3 β -HSD, 17 β -HSD, 5 α -reductase, Δ 1 -dehydrogenase, etc.), and progestins ( Δ 1 -dehydrogenase, 11 α -hydroxylase, 11 β -hydroxylase, etc.) (Vitas et al. 1997; Yazdi and Hosseini 2002; Fernandes et al. 2003; Burton 2003; Faramarzi et al. 2004; Yazdi et al. 2005; Faramarzi et al. 2009; Zhang et al. 2011; Wang et al. 2013a; Zhang et al. 2013b).
o
o
Androst-4-en-3,17-dione
o
OH
17β-Hydroxyandrost-1,4-dien-3-one
Acremonium strictum
120 rpm, 6 days, 27 °C
HO
o
Dehydroepiandrosterone
Penicillium glabrum
130 rpm, 24 hHO
O O
3β-Hydroxy-17α-oxa-D-homo-5α-androstan-17-one
O
OO
Adrenosterone
Cunninghamella elegans
120 rpm, 72 h, 26 °C O
OOH
11-Ketotestosterone
Scheme 3. Reduction reactions.
8 N. Nassiri-Koopaei & M. A. Faramarzi
Tab
le I
. F
unga
l tr
ansf
orm
atio
ns o
f st
eroi
ds.
Sub
stra
teM
icro
orga
nism
Pro
duct
Met
hod
of
Bio
tran
sfor
mat
ion
Yie
ld %
Ref
eren
ce
Hyd
roxy
latio
n A
ndro
st-1
,4-d
ien-
3,17
-dio
ne A
crem
oniu
m s
tric
tum
15
α -H
ydro
xyan
dros
t-1,
4-di
en-3
,17-
dion
eW
hole
-cel
l, S
haki
ng fl
ask
6.2
Far
amar
zi e
t al
. 20
06
15 α -
Hyd
roxy
andr
ost-
4-en
-3,1
7-di
one
1915
α ,17
β -D
ihyd
roxy
andr
ost-
1,4-
dien
-3-o
ne4.
53 β
-Hyd
roxy
andr
ost-
5-en
-17-
one
(DH
EA
) G
ibbe
rella
zea
e V
KM
F
-260
03 β
,7 α -
Dih
ydrd
oxy-
andr
ost-
5-en
-17-
one
Who
le-c
ell,
Sha
king
fl a
sk71
.2L
obas
tova
et
al.
2009
Epi
andr
oste
rone
Bea
uver
ia b
assi
ana
3 β ,1
1 α -D
ihyd
roxy
-5 α -
andr
osta
n-17
-one
3 β ,1
1 α ,1
7 β -T
rihy
drox
y-5 α
-and
rost
ane
3 β ,1
1 α -D
ihyd
roxy
-17 α
-oxa
-D-h
omo-
5 α -a
ndro
stan
-17-
one
Who
le-
cell,
S
haki
ng fl
ask
7 8 9
Ś wiz
dor
et a
l. 20
11
DH
EA
11 α -
Hyd
roxy
-DH
EA
3 β ,1
1 α ,1
7 β -T
rihy
drox
yand
rost
-5-e
ne 3 β
,11 α
-Dih
ydro
xy-1
7 α -o
xa-D
-hom
o-an
dros
t-5-
en-1
7-on
e
10 11 12A
ndro
sten
edio
l3 β
,12 α
,17 β
-Tri
hydr
oxya
ndro
st-5
-ene
3 β ,1
2 α -D
ihyd
roxy
-17 α
-oxa
-D-h
omo-
andr
ost-
5-en
-17-
one
11 12A
ndro
sten
edio
ne11
α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e
11 α -
Hyd
roxy
test
oste
rone
11 α -
Hyd
roxy
-17 α
-oxa
-D-h
omo-
andr
ost-
4-en
-3,1
7-di
on
13 14 15P
roge
ster
one
11 α -
Hyd
roxy
prog
este
rone
6 β ,1
1 α -D
ihyd
roxy
prog
este
rone
11 α -
Hyd
roxy
test
oste
rone
11 α ,
17 β -
Dih
ydro
xy-5
β -an
dros
tan-
3-on
e
16 17 14 18A
ndro
sten
edio
ne C
haet
omiu
m s
p. K
CH
66
5114
α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
eW
hole
-cel
l, S
haki
ng fl
ask
75Ja
necz
ko e
t al
. 20
09
3 β -H
ydro
xy-5
α -an
dros
tan-
17-o
ne C
epha
losp
oriu
m
aphi
dico
la
3 β ,1
2 α ,1
7 β -t
rihy
drox
y-5 α
-and
rost
ane
3 β ,1
4 α -D
ihyd
roxy
-5 α -
andr
osta
n-17
-one
3 β ,5
α -D
ihyd
roxy
-5 α -
andr
osta
n-17
-one
Who
le-c
ell,
Sha
king
fl a
sk12 2 4
Ben
sass
on e
t al
. 19
98
3 β -H
ydro
xyan
dros
t-5-
en-1
7-on
e3 β
,7 α -
Dih
ydro
xyan
dros
t-5-
en-1
7-on
e
3 β ,7
β -D
ihyd
roxy
andr
ost-
5-en
-17-
one
3 β ,1
1 α -D
ihyd
roxy
andr
ost-
5-en
-17-
one
3 β ,5
α ,6 β
-Tri
hydr
oxya
ndro
stan
-17-
one
25 31 6 63 β
,19-
Dih
ydro
xyan
dros
t-5-
en-1
7-on
e3 β
,5 α ,
6 β ,1
9-T
etra
hydr
oxya
ndro
stan
-17-
one
84 β
,17 β
-Dih
ydro
xy-4
α -m
ethy
l-5 α
-an
dros
tane
Cep
halo
spor
ium
ap
hidi
cola
4 β
,7 α -
Dih
ydro
xy-4
α -m
ethy
l-5 α
-and
rost
an-1
7-on
e 4 β
,15 α
,17 β
-Tri
hydr
oxy-
4 α -m
ethy
l-5 α
-and
rost
ane
Who
le-c
ell,
Sha
king
fl a
sk10 7
Ben
sass
on e
t al
. 19
99
4 β ,1
7 β -D
ihyd
roxy
-4 α ,
17 α -
dim
ethy
l-5 α
-an
dros
tane
4 β ,7
α ,17
β -T
rihy
drox
y-4 α
,17 α
-dim
ethy
l-5 α
-and
rost
ane
15
17 α -
Met
hylt
esto
ster
one
Acr
emon
ium
str
ictu
m
6 β -H
ydro
xy-1
7 α -m
ethy
ltes
tost
eron
e
6 β ,1
2 β -D
ihyd
roxy
-17 α
-met
hylt
esto
ster
one
7 β -H
ydro
xy-1
7 α -m
ethy
ltes
tost
eron
e
6 β ,1
7 β -D
ihyd
roxy
-17 α
-met
hyla
ndro
sta-
1,4-
dien
-3-o
ne 3,
17 β -
Dih
ydro
xy-1
7 α -m
ethy
lest
r-1,
3,5(
10)-
trie
ne
Who
le c
ell,
Sha
king
fl a
sk28
.4
24.3
16.7 9.5
7.6
Nas
siri
-Koo
paei
et
al.
2013
Fungal transformation of steroids 9
Tes
tost
eron
e C
epha
losp
oriu
m
aphi
dico
la
6 β ,1
7 β -D
ihyd
roxy
andr
ost-
4-en
-3-o
ne 14
α ,17
β -D
ihyd
roxy
andr
ost-
4-en
-3-o
neW
hole
-cel
l, S
haki
ng fl
ask
47 3H
anso
n et
al.
1996
And
rost
-4-e
n-3-
one
6 β ,1
7 β -D
ihyd
roxy
andr
ost-
4-en
-3-o
ne 6 β
,11 α
-Dih
ydro
xyan
dros
t-4-
en-3
-one
18 219
-Nor
test
oste
rone
6 β ,1
7 β -D
ihyd
roxy
-19-
nora
ndro
st-4
-en-
3-on
e 10
β ,17
β -D
ihyd
roxy
-19-
nora
ndro
st-4
-en-
3-on
e47 4
1-D
ehyd
rote
stos
tero
ne6 β
,17 β
-Dih
ydro
xyan
dros
t-1,
4-di
en-3
-one
14 α ,
17 β -
Dih
ydro
xyan
dros
t-1,
4-di
en-3
-one
48 21 α
-Met
hylt
esto
ster
one
6 β ,1
7 β -D
ihyd
roxy
-1 α -
met
hyla
ndro
st-4
-en-
3-on
e 14
α ,17
β -D
ihyd
roxy
-1 α -
met
hyla
ndro
st-4
-en-
3-on
e51 1.5
And
rost
-4-e
n-3,
17-d
ione
6 β -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e 14
α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e25 2
17 α -
Met
hylt
esto
ster
one
6 β ,1
7 β -D
ihyd
roxy
-17 α
-met
hyla
ndro
st-4
-en-
3-on
e 6 β
,11 α
,17 β
-Tri
hydr
oxy-
17 α -
met
hyla
ndro
st-4
-en-
3-on
e17 4
Deh
ydro
epia
ndro
ster
one
(DH
EA
) S
acch
arom
yces
cer
evis
iae
7 α -H
ydro
xy D
HE
AW
hole
-cel
l, G
enet
ic
engi
neer
ing,
cl
onin
g
ND
Vic
o et
al.
2002
And
rost
-4-e
n-3,
17-d
ione
Neu
rosp
ora
cras
sa
6 β ,1
4 α -D
ihyd
roxy
andr
ost-
4-en
-3,1
7-di
one
6 β ,9
α -D
ihyd
roxy
andr
ost-
4-en
-3,1
7-di
one
7 α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e
9 α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e 14
α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e
Who
le-c
ell,
Sha
king
fl a
sk21
.3
25.7
15.3 8.7
9.8
Far
amar
zi e
t al
. 20
08b
Nan
drol
one
deca
noat
e A
crem
oniu
m s
tric
tum
15
α -H
ydro
xyes
tr-4
-en-
3,17
-dio
ne 15
α ,17
β -D
ihyd
roxy
estr
-4-e
n-3-
one
Who
le-c
ell,
Sha
king
fl a
sk4.
9 5.
6Y
azdi
et
al.
2006
Tes
tost
eron
e B
otry
tis c
iner
ea
7 α -H
ydro
xyte
stos
tero
neW
hole
-cel
l, S
haki
ng fl
ask
76H
uszc
za 2
003b
17 α -
Met
hylt
esto
ster
one
7 α -H
ydro
xy-1
7 α -m
ethy
ltes
tost
eron
e82
19-N
orte
stos
tero
ne10
β -H
ydro
xy-1
9-no
rand
rost
-4-e
n-3,
17-d
ione
781-
Deh
ydro
test
oste
rone
7 α -H
ydro
xy-1
-deh
ydro
test
oste
rone
271-
Deh
ydro
-17 α
-met
hylt
esto
ster
one
7 α -H
ydro
xy-1
-deh
ydro
-17 α
-met
hylt
esto
ster
one
52D
ehyd
roep
iand
rost
eron
e (D
HE
A)
Peni
cilli
um
Gri
seop
urpu
reum
Sm
ith
and
Peni
cilli
um
glab
rum
(W
ehm
er)
Wes
tlin
g
15 α -
Hyd
roxy
andr
ost-
4-en
-3,1
7-di
one
14 α -
Hyd
roxy
andr
ost-
4-en
-3,1
7-di
one
7 α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e
Who
le-c
ell,
Sha
king
fl a
sk16 1.5
0.8
Hua
ng e
t al
. 20
10
Mes
tano
lone
Rhi
zopu
s st
olon
ifer
11 α -
Hyd
roxy
mes
tano
lone
6 α -H
ydro
xym
esta
nolo
neW
hole
-cel
l, S
haki
ng fl
ask
ND
Moh
amm
ad e
t al
. 20
1319
-Nor
test
oste
rone
Fus
ariu
m c
ulm
orum
6 β
-Hyd
roxy
-19-
nort
esto
ster
one
6 β -H
ydro
xy-1
9-no
rand
rost
ened
ione
Who
le-c
ell,
Sha
king
fl a
sk32 48
Ś wiz
dor
and
Ko ł
ek
(200
5)19
-Nor
andr
oste
nedi
one
6 β -H
ydro
xy-1
9-no
rtes
tost
eron
e 6 β
-Hyd
roxy
-19-
nora
ndro
sten
edio
ne15 66
(Con
tinue
d )
10 N. Nassiri-Koopaei & M. A. Faramarzi
4-M
etho
xyte
stos
tero
ne6 β
-Hyd
roxy
-4-m
etho
xyan
dros
tene
dion
e
6 β -H
ydro
xy-4
-met
hylt
esto
ster
one
6 β -H
ydro
xy-4
-met
hyla
ndro
sten
edio
ne
80 76 104-
Met
hylt
esto
ster
one
6 β ,1
5 α -D
ihyd
roxy
-4-m
ethy
land
rost
ened
ione
6 β ,1
1 α -D
ihyd
roxy
-4-m
ethy
land
rost
ened
ione
32 174-
Chl
orot
esto
ster
one
6 β -H
ydro
xy-4
-chl
oroa
ndro
sten
edio
ne
15 α -
Hyd
roxy
-4-c
hlor
oand
rost
ened
ione
3 β ,1
5 α -D
ihyd
roxy
-4-c
hlor
o-4-
andr
oste
ne-1
7-on
e 3 β
,15 α
-Dih
ydro
xy-4
-chl
oro-
5 α -a
ndro
stan
-17-
one
10 11 22 3917
α -M
ethy
ltes
tost
eron
e6 β
-Hyd
roxy
-17 α
-met
hylt
esto
ster
one
15 α -
Hyd
roxy
-17 α
-met
hylt
esto
ster
one
12 β -
Hyd
roxy
-17 α
-met
hylt
esto
ster
one
50 22 2217
α -E
thyl
-19-
nort
esto
ster
one
6 β -H
ydro
xy-1
7 α -e
thyl
-19-
nort
esto
ster
one
15 α -
Hyd
roxy
-17 α
-eth
yl-1
9-no
rtes
tost
eron
e 11
α -H
ydro
xy-1
7 α -e
thyl
-19-
nort
esto
ster
one
43 22 124-
Chl
oro-
17 α -
met
hylt
esto
ster
one
6 β -H
ydro
xy-4
-chl
oro-
17 α -
met
hylt
esto
ster
one
15 α -
Hyd
roxy
-4-c
hlor
o-17
α -m
ethy
ltes
tost
eron
e73 27
17 α -
Met
hylt
esto
ster
one
Muc
or r
acem
osus
7 α
-Hyd
roxy
-17 α
-met
hylt
esto
ster
one
15 α -
Hyd
roxy
-17 α
-met
hylt
esto
ster
one
12 β ,
15 α -
Dih
ydro
xy-1
7 α -m
ethy
ltes
tost
eron
e
Who
le-c
ell,
Sha
king
fl a
sk35 21 22
Tor
shab
i et
al.
2011
Oxa
ndro
lone
Rhi
zopu
s st
olon
ifer
11 α -
Hyd
roxy
oxan
drol
one
6 α -H
ydro
xyox
andr
olon
e 9 α
-Hyd
roxy
oxan
drol
one
Who
le-c
ell,
Sha
king
fl a
sk25 5 8
Cho
udha
ry e
t al
. 20
09
Deh
ydro
epia
ndro
ster
one
(DH
EA
) 15
β ,16
β -m
ethy
lene
- de
hydr
oepi
andr
oste
rone
Bot
ryod
iplo
dia
mal
orum
an
d C
olle
totr
ichu
m li
ni
7 α -H
ydro
xyde
hydr
oepi
andr
oste
rone
7 β -H
ydro
xyde
hydr
oepi
andr
oste
rone
7,15
α -D
ihyd
roxy
-deh
ydro
epia
ndro
ster
one
7 α -H
ydro
xy-1
5 β ,1
6 β -m
ethy
lene
-deh
ydro
epia
ndro
ster
one
7 β -H
ydro
xy-1
5 β ,1
6 β -m
ethy
lene
-deh
ydro
epia
ndro
ster
one
Imm
obili
zed
cell,
cy
clod
extr
in
enha
ncer
82R
oman
o et
al.
2006
Tes
tost
eron
e Tr
icho
derm
a ha
mat
um
11 α -
Hyd
roxy
andr
ost-
1,4-
dien
-3,1
7-di
one
6 α -H
ydro
xyan
dros
t-1,
4-di
en-3
,17-
dion
eW
hole
-cel
l, S
haki
ng fl
ask
77 5B
artm
a ń sk
a an
d D
moc
how
ska-
G ł a
dysz
(20
07)
Tes
tost
eron
e pr
opio
nate
11 α -
Hyd
roxy
andr
ost-
1,4-
dien
-3,1
7-di
one
6 α -H
ydro
xyan
dros
t-1,
4-di
en-3
,17-
dion
e
11 α -
Hyd
roxy
andr
ost-
1,4-
dien
-3,1
7-di
one
11 α -
Hyd
roxy
andr
oste
nedi
one
26 8 63 16A
ndro
sten
edio
ne6 α
-Hyd
roxy
andr
ost-
1,4-
dien
-3,1
7-di
one
11 α -
Hyd
roxy
andr
oste
nedi
one
5 3219
-Nor
test
oste
rone
11 α -
Hyd
roxy
-19-
nort
esto
ster
one
1617
α -M
ethy
ltes
tost
eron
e11
α -H
ydro
xy-1
7 α -m
ethy
ltes
tost
eron
e 12
β -H
ydro
xydi
anab
ol37 26
Tab
le I
. (C
onti
nued
)
Sub
stra
teM
icro
orga
nism
Pro
duct
Met
hod
of
Bio
tran
sfor
mat
ion
Yie
ld %
Ref
eren
ce
Fungal transformation of steroids 11
1-D
ehyd
rote
stos
tero
ne11
α -H
ydro
xydi
anab
ol
11 α -
Hyd
roxy
andr
ost-
1,4-
dien
-3,1
7-di
one
6 α -H
ydro
xyan
dros
t-1,
4-di
en-3
,17-
dion
e
22 83 14D
iana
bol
11 α -
Hyd
roxy
dian
abol
12 β -
Hyd
roxy
dian
abol
37 22P
roge
ster
one
11 α -
Hyd
roxy
andr
ost-
1,4-
dien
-3,1
7-di
one
11 α -
Hyd
roxy
-1-d
ehyd
rote
stol
acto
ne 12
α -H
ydro
xyte
stol
acto
ne
20 15 5D
ehyd
roep
iand
rost
eron
e M
ucor
rac
emos
us
7 α -H
ydro
xyde
hydr
oepi
andr
oste
rone
7 β -H
ydro
xyde
hydr
oepi
andr
oste
rone
Who
le-c
ell,
Sha
king
fl a
sk40
.9 18L
i et
al.
2005
11-K
eto-
β -bo
swel
lic a
cid
Cun
ning
ham
ella
bl
akes
leea
na
7 β -H
ydro
xy-1
1-ke
to- β
-bos
wel
lic a
cid
7 β ,1
5 α -D
ihyd
roxy
-11-
keto
- β -b
osw
ellic
aci
d
7 β ,1
6 β -D
ihyd
roxy
-11-
keto
- β -b
osw
ellic
aci
d
7 β ,1
6 α -D
ihyd
roxy
-11-
keto
- β -b
osw
ellic
aci
d
7 β ,2
2 β -D
ihyd
roxy
-11-
keto
- β -b
osw
ellic
aci
d
7 β ,2
1 β -D
ihyd
roxy
-11-
keto
- β -b
osw
ellic
aci
d
7 β ,2
0 β -D
ihyd
roxy
-11-
keto
- β -b
osw
ellic
aci
d 7 β
,30-
Dih
ydro
xy-1
1-ke
to- β
-bos
wel
lic a
cid
Who
le-c
ell,
Sha
king
fl a
skN
DW
ang
et a
l. 20
13a
16 α ,
17 α -
Epo
xy-4
-pre
gene
ne-3
,20d
ione
Met
arrh
iziu
m a
niso
plia
e 11
α -H
ydro
xyl-
16 α ,
17 α -
epox
y-4-
preg
enen
e-3,
20di
one
Who
le-c
ell,
Sha
king
fl a
sk49
.6Y
ang
et a
l. 20
01
Cin
obuf
agin
Muc
or s
pino
sus
and
Asp
ergi
llus
nige
r 1 β
-Hyd
roxy
lcin
obuf
agin
12 β -
Hyd
roxy
lcin
obuf
agin
1 β ,1
2 β -D
ihyd
roxy
lcin
obuf
agin
12 β -
Hyd
roxy
ldes
acet
ylci
nobu
fagi
n
5 β -H
ydro
xylc
inob
ufag
in
12 β -
Hyd
roxy
lbuf
alin
7 β -H
ydro
xylb
ufal
in
Who
le-c
ell,
Sha
king
fl a
sk3.
0
19.5
13.1
16.6
33.8
36.6 7.0
He
et a
l. 20
06b
Pre
dnis
olon
e S
trep
tom
yces
ro
seoc
hrom
ogen
es T
S79
20 β -
Hyd
roxy
pred
niso
lone
Who
le-c
ell,
Sha
king
fl a
sk95
.1Z
hang
et
al.
2011
Tes
tost
eron
e pr
opio
nate
Peni
cilli
um n
otat
um
15 α -
Hyd
roxy
andr
ost-
4-en
-3,1
7-di
one
Who
le-c
ell,
Sha
king
fl a
sk29
Bar
tma ń
ska
et a
l. 20
05
And
rost
ened
ione
15 α -
Hyd
roxy
andr
ost-
4-en
-3,1
7-di
one
717
α -M
ethy
ltes
tost
eron
e15
α -H
ydro
xy-1
7 α -m
ethy
ltes
tost
eron
e 15
α ,17
β -D
ihyd
roxy
-17 α
-met
hyl-
5 α -a
ndro
stan
-3-o
ne65 31
Dia
nabo
l15
α -H
ydro
xydi
anab
ol 6 β
-Hyd
roxy
dian
abol
83 9T
esto
ster
one
Abs
idia
gla
uca
7 α -H
ydro
xyan
dros
tene
dion
e 6 β
,11 α
-Dih
ydro
xyan
dros
tene
dion
eW
hole
-cel
l, S
haki
ng fl
ask
38 30H
uszc
za 2
003a
(Con
tinue
d )
12 N. Nassiri-Koopaei & M. A. Faramarzi
17 α -
Met
hylt
esto
ster
one
12 β -
Hyd
roxy
-17 α
-met
hylt
esto
ster
one
11 α -
Hyd
roxy
-17 α
-met
hylt
esto
ster
one
6 β ,1
2 β -D
ihyd
roxy
-17 α
-met
hylt
esto
ster
one
32 19 2619
-Nor
test
oste
rone
6 β -H
ydro
xy-1
9-no
rtes
tost
eron
e
12 β -
Hyd
roxy
-19-
nort
esto
ster
one
10 β -
Hyd
roxy
-19-
nort
esto
ster
one
23 18 161-
Deh
ydro
test
oste
rone
7 β -H
ydro
xy-1
-deh
ydro
test
oste
rone
15 β -
Hyd
roxy
-1-d
ehyd
rote
stos
tero
ne
7 β -H
ydro
xy-1
-deh
ydro
andr
oste
nedi
one
6 β -H
ydro
xy-1
-deh
ydro
test
oste
rone
50 22 10 91-
Deh
ydro
-17 α
-met
hylt
esto
ster
one
15 β -
Hyd
roxy
-1-d
ehyd
ro-1
7 α -m
ethy
ltes
tost
eron
e
7 β -H
ydro
xy-1
-deh
ydro
-17 α
-met
hylt
esto
ster
one
6 β -H
ydro
xy-1
-deh
ydro
-17 α
-met
hylt
esto
ster
one
28 26 203 β
-Ace
toxy
preg
n-5,
16-d
ien-
20-o
ne Pe
nici
llium
citr
inum
3 β
,7 β -
Dih
ydro
xy-p
regn
-5,1
6(17
)-di
en-2
0-on
e
3 β ,7
β ,11
α -T
rihy
drox
y-pr
egn-
5,16
(17)
-die
n-20
-one
3 β ,7
α -D
ihyd
roxy
-pre
gn-5
,16(
17)-
dien
-20-
one
Who
le-c
ell,
Sha
king
fl a
sk24 8 12
Gao
et
al.
2011
Pro
gest
eron
e A
crem
oniu
m s
tric
tum
15
α -H
ydro
xypr
egn-
4-en
-3,2
0-di
one
15 α ,
21-D
ihyd
roxy
preg
n-4-
en-3
,20-
dion
eW
hole
-cel
l, S
haki
ng fl
ask
17.6
10.2
Far
amar
zi e
t al
. 20
03
Cin
obuf
agin
Alte
rnar
ia a
ltern
ata
and
Syn
ceph
alas
trum
ra
cem
osum
12 β -
Hyd
roxy
l ci
nobu
fagi
nW
hole
-cel
l, S
haki
ng fl
ask
59 67Y
e et
al.
2004
Adr
enos
tero
ne C
unni
ngha
mel
la e
lega
ns
9 α -H
ydro
xyad
reno
ster
one
6 β -H
ydro
xyad
reno
ster
one
9 α -H
ydro
xy-1
1-ke
tote
stos
tero
ne 6 β
-Hyd
roxy
-11-
keto
test
oste
rone
Who
le-c
ell,
Sha
king
fl a
skN
D 8.7
12.4
13.8
Cho
udha
ry e
t al
. 20
07
Pro
gest
eron
e S
trep
tom
yces
ro
seoc
hrom
ogen
es
2 β -H
ydro
xypr
oges
tero
ne
16 α -
Hyd
roxy
prog
este
rone
2 β ,1
6 α -D
ihyd
roxy
prog
este
rone
Who
le-c
ell,
Sha
king
fl a
sk25
(to
tal)
Ber
rie
et a
l. 19
99
Deo
xyco
rtic
oste
rone
Cep
halo
spor
ium
ap
hidi
cola
6 β
,21-
Dih
ydro
xypr
egn-
4-en
-3,2
0-di
one
6 β ,1
1 α ,2
1-T
rihy
drox
ypre
gn-4
-en-
3,20
-dio
neW
hole
-cel
l, S
haki
ng fl
ask
6.4
10.0
Han
son
and
Hun
ter
(199
8)C
orte
xolo
ne12
β ,17
α ,21
-Tri
hydr
oxyp
regn
-4-e
n-3,
20-d
ione
1.5
Tes
tost
eron
e W
hetz
elin
ia s
cler
otio
rum
, P
hane
roch
aete
ch
ryso
spor
ium
and
M
ucor
plu
mbe
us
6 β ,1
7 β -D
ihyd
roxy
andr
ost-
4-en
-3-o
ne
2 β ,1
7 β -D
ihyd
roxy
andr
ost-
4-en
-3-o
ne 2 β
,16 β
,17 β
-Tri
hydr
oxya
ndro
st-4
-en-
3-on
e
Who
le-c
ell,
Sha
king
fl a
skN
DL
amm
et
al.
2007
Pro
gest
eron
e T
ham
nost
ylum
pir
iform
e
AT
CC
899
2 M
ucor
gri
seoc
yanu
s 12
07a
14 α -
Hyd
roxy
prog
este
rone
6 β ,1
4 α -D
ihyd
roxy
prog
este
rone
7 α ,1
4 α -D
ihyd
roxy
prog
este
rone
9 α -H
ydro
xypr
oges
tero
ne
Who
le-c
ell,
Sha
king
fl a
sk85
Low
Low
� 1
5
Hu
et a
l. 19
95
Tab
le I
. (C
onti
nued
)
Sub
stra
teM
icro
orga
nism
Pro
duct
Met
hod
of
Bio
tran
sfor
mat
ion
Yie
ld %
Ref
eren
ce
Fungal transformation of steroids 13
5 β -P
regn
an-3
,20-
dion
e14
α -H
ydro
xy-5
β -pr
egna
n-3,
20-d
ione
14 α ,
15 β -
Dih
ydro
xy-5
β -pr
egna
n-3,
20-d
ione
25 L
ow3 β
-Hyd
roxy
-5 β -
preg
nan-
20-o
ne3 β
,14 α
-Dih
ydro
xy-5
β -pr
egna
n-20
-one
3 β ,9
α ,14
α -T
rihy
drox
y-5 β
-pre
gnan
-20-
one
3 β ,9
α -D
ihyd
roxy
-5 β -
preg
nan-
20-o
ne
6 16 L
ow3 β
-Hyd
roxy
-5 β ,
17( α
H)-
etia
nic
acid
m
ethy
l es
ter
3 β ,1
4 α -D
ihyd
roxy
-5 β ,
7( α H
)-et
iani
c ac
id m
ethy
l es
ter
3 β ,9
α ,14
α -T
rihy
drox
y-5 β
,17(
α H)-
etia
nic
acid
met
hyl
este
r
3 β ,1
4 α ,1
5 α -T
rihy
drox
y-5 β
,17(
α H)-
etia
nic
acid
met
hyl
este
r 3 β
,15 β
-Dih
ydro
xy-5
β ,17
( α H
)-et
iani
c ac
id m
ethy
l es
ter
9 12
Low
Low
And
rost
-4-e
n-3,
17-d
ione
7 α -H
ydro
xyan
dros
t-4-
ene-
3,17
-dio
ne
14 α -
Hyd
roxy
andr
ost-
4-en
e-3,
17-d
ione
6 β -H
ydro
xyan
dros
t-4-
ene-
3,17
-dio
ne
4 9 10T
esto
ster
one
14 α -
Hyd
roxy
test
oste
rone
6 β -H
ydro
xyte
stos
tero
ne 9 α
-Hyd
roxy
test
oste
rone
35 7 13P
roge
ster
one
Asp
ergi
llus
fum
igat
us
11 α ,
15 β -
Dih
ydro
xypr
oges
tero
ne
7 β ,1
5 β -D
ihyd
roxy
prog
este
rone
11 α -
Hyd
roxy
prog
este
rone
15 β -
Hyd
roxy
prog
este
rone
7 β -H
ydro
xypr
oges
tero
ne
Who
le-c
ell,
Sha
king
fl a
sk48
25.4
32.6
17.4 3.7
Sm
ith
et a
l. 19
94
17 β -
Ace
tyla
min
oest
r-4-
en-3
-one
Asp
ergi
llus
ochr
aceu
s C
urvu
lari
a lu
nata
R
hizo
pus
arrh
izus
17 β -
Ace
tyla
min
o-11
α -hy
drox
yest
r-4-
en-3
-one
17 β -
Ace
tyla
min
o-6 β
-hyd
roxy
estr
-4-e
n-3-
one
17 β -
Ace
tyla
min
o-11
β -hy
drox
yest
r-4-
en-3
-one
17 β -
Ace
tyla
min
o-10
β -hy
drox
yest
r-4-
en-3
-one
Who
le-c
ell,
Sha
king
fl a
sk75 78 50 30
Hol
land
et
al.
1998
17 β -
Ace
tyla
min
oand
rost
-4-e
n-3-
one
17 β -
Ace
tyla
min
o-11
α -hy
drox
yand
rost
-4-e
n-3-
one
17 β -
Ace
tyla
min
o-11
β -hy
drox
yand
rost
-4-e
n-3-
one
17 β -
Ace
tyla
min
o-6 β
-hyd
roxy
andr
ost-
4-en
-3-o
ne 17
β -A
cety
lam
ino-
15 β -
hydr
oxya
ndro
st-4
-en-
3-on
e
86 84 82 N
D17
β -A
cety
lam
ino-
5 α -a
ndro
stan
-3-o
ne17
β -A
cety
lam
ino-
11 α -
hydr
oxy-
5 α -a
ndro
stan
-3-o
ne
17 β -
Ace
tyla
min
o-11
β -hy
drox
y-5 α
-and
rost
an-3
-one
17 β -
Ace
tyla
min
o-6 α
-hyd
roxy
-5 α -
andr
osta
n-3-
one
85 70 7817
β -A
cety
lam
ino-
5 β -a
ndro
stan
-3-o
ne17
β -A
cety
lam
ino-
11 α -
hydr
oxy-
5 β -a
ndro
stan
-3-o
neN
D3 β
-Ace
tyla
min
o-5 α
-and
rost
an-1
7-on
e3 β
-Ace
tyla
min
o-7 α
-hyd
roxy
-5 α -
andr
osta
n-17
-one
3 β -A
cety
lam
ino-
6 α -h
ydro
xy-5
α -an
dros
tan-
17-o
ne
3 β -A
cety
lam
ino-
1 β -h
ydro
xy-5
α -an
dros
tan-
17-o
ne 3 β
-Ace
tyla
min
o-7 β
-hyd
roxy
-5 α -
andr
osta
n-17
-one
65 10 8 43 β
-Ace
tyla
min
o-5 β
-and
rost
an-1
7-on
e3 β
-Ace
tyla
min
o-11
α -hy
drox
y-5 β
-and
rost
an-1
7-on
e65
3 β -A
cety
lam
ino-
5 α -a
ndro
stan
-17 β
-ol
3 β -A
cety
lam
ino-
6 α -h
ydro
xy-5
α -an
dros
tan-
17 β -
ol12
(Con
tinue
d )
14 N. Nassiri-Koopaei & M. A. Faramarzi
N -m
ethy
l-3-
keto
andr
ost-
4-en
-17 β
-ca
rbox
amid
e N
-Met
hyl-
11 α -
hydr
oxy-
3-ke
toan
dros
t-4-
en-1
7 β -c
arbo
xam
ide
N -M
ethy
l-15
α -hy
drox
y-3-
keto
andr
ost-
4-en
-17 β
-car
boxa
mid
e
N -M
ethy
l-14
α -hy
drox
y-3-
keto
andr
ost-
4-en
-17 β
-car
boxa
mid
e
N -M
ethy
l-11
β -hy
drox
y-3-
keto
andr
ost-
4-en
-17 β
-car
boxa
mid
e N
-Met
hyl-
6 β -h
ydro
xy-3
-ket
oand
rost
-4-e
n-17
β -ca
rbox
amid
e
85 52 40 36 4220
α / β -
Ace
tyla
min
opre
gn-4
-en-
3-on
es20
α -A
cety
lam
ino-
11 α -
hydr
oxyp
regn
-4-e
n-3-
one
20 β -
Ace
tyla
min
o-11
α -hy
drox
ypre
gn-4
-en-
3-on
e
20 ξ -
Ace
tyla
min
o-14
α -hy
drox
ypre
gn-4
-en-
3-on
e
20 β -
Ace
tyla
min
o-11
β -hy
drox
ypre
gn-4
-en-
3-on
e
20 α -
Ace
tyla
min
o-11
β -hy
drox
ypre
gn-4
-en-
3-on
e
20 ξ -
Ace
tyla
min
o-11
β ,14
α -di
hydr
oxyp
regn
-4-e
n-3-
one
20 α -
Ace
tyla
min
o-6 β
-hyd
roxy
preg
n-4-
en-3
-one
20 α -
Ace
tyla
min
o-15
β -hy
drox
ypre
gn-4
-en-
3-on
e 20
β -A
cety
lam
ino-
15 β -
hydr
oxyp
regn
-4-e
n-3-
one
34 36 25 20 10 8 66 32 3020
α / β -
Ace
tyla
min
o-5 α
-pre
gnan
-3-o
nes
20 α -
Ace
tyla
min
o-11
α -hy
drox
y-5 α
-pre
gnan
-3-o
ne
20 β -
Ace
tyla
min
o-11
α -hy
drox
y-5 α
-pre
gnan
-3-o
ne
20 ξ -
Ace
tyla
min
o-14
α -hy
drox
y-5 α
-pre
gnan
-3-o
ne 20
ξ -A
cety
lam
ino-
11 β -
hydr
oxy-
5 α -p
regn
an-3
-one
41 40 12 1416
,17-
Epo
xypr
oges
tero
ne A
bsid
ia c
oeru
lea
IBL
0211
β -H
ydro
xy-1
6,17
-epo
xypr
oges
tero
neW
hole
-cel
l, S
haki
ng fl
ask
85C
hen
et a
l. 20
07
16,1
7-E
poxy
prog
este
rone
Rhi
zopu
s ni
gric
ans
11 α -
Hyd
roxy
-16,
17-e
poxy
prog
este
rone
Who
le-c
ell,
Bip
hasi
c io
nic
liqui
d aq
ueou
s sy
stem
90W
u et
al.
2011
Pro
gest
eron
e N
ectr
ia h
aem
atoc
occa
11
α -H
ydro
xyan
dros
tene
dion
e
11 α -
Hyd
roxy
andr
ost-
1-en
dion
e
Tes
tost
eron
e 11
α -H
ydro
xy-1
-en-
test
oste
rone
Who
le-c
ell,
Sha
king
fl a
sk2.
9
2.1
3.3
ND
Ahm
ed e
t al
. 19
96
And
rost
ened
ione
11 α -
Hyd
roxy
-1-e
n-te
stos
tero
ne
11 α -
Hyd
roxy
andr
oste
nedi
one
11 α -
Hyd
roxy
andr
ost-
1-en
dion
e 11
α -H
ydro
xy-1
-en-
test
oste
rone
1.7
6.1
3.8
4.3
Tes
tost
eron
e11
α -H
ydro
xyan
dros
tene
dion
e 11
α -H
ydro
xyan
dros
t-1-
endi
one
1.9 8
Tab
le I
. (C
onti
nued
)
Sub
stra
teM
icro
orga
nism
Pro
duct
Met
hod
of
Bio
tran
sfor
mat
ion
Yie
ld %
Ref
eren
ce
Fungal transformation of steroids 15
(20S
)-20
-Hyd
roxy
met
hylp
regn
-1,4
-die
n-3-
one
Cun
ning
ham
ella
ele
gans
TS
Y-0
865
Mac
roph
omin
a ph
aseo
lina
KU
CC
-
730
Rhi
zopu
s st
olon
ifer
TS
Y-0
471
Gib
bere
lla f
ujik
uroi
A
TC
C-1
0704
(20S
)-11
α -H
ydro
xy-2
0-ac
etox
ymet
hylp
regn
-1,4
-die
n-3-
one
(20S
)-17
α -H
ydro
xy-2
0-hy
drox
ymet
hylp
regn
-1,4
-die
n-3-
one
(20S
)-11
α -H
ydro
xy-2
0-hy
drox
ymet
hylp
regn
-1,4
-die
n-3-
one
(20S
)-6 β
,11 α
-Dih
ydro
xy-2
0-hy
drox
ymet
hylp
regn
-1,4
-die
n-3-
one
(20S
)-11
α ,15
β -D
ihyd
roxy
-20-
hydr
oxym
ethy
lpre
gn-1
,4-d
ien-
3-on
e (2
0S)-
11 α ,
17 α -
Dih
ydro
xy-2
0-hy
drox
ymet
hylp
regn
-1,4
-die
n-
3-on
e (2
0S)-
14 α ,
15 β ,
17 α -
Tri
hydr
oxy-
20-h
ydro
xym
ethy
lpre
gn-1
,4-
dien
-3-o
ne
(20S
)-7 β
-Hyd
roxy
-20-
hydr
oxym
ethy
lpre
gn-1
,4-d
ien-
3-on
e
(20S
)-15
β -H
ydro
xy-2
0-hy
drox
ymet
hylp
regn
-1,4
-die
n-3-
one
(20S
)-7 β
,15 β
-Dih
ydro
xy-2
0-hy
drox
ymet
hylp
regn
-1,4
-die
n-3-
one
(20S
)-16
β -H
ydro
xy-2
0-hy
drox
ymet
hylp
regn
-1,4
-die
n-3-
one
Who
le-c
ell,
Sha
king
fl a
sk0.
4
0.43 8.6
0.6 2
0.38
0.32
0.67
1.25
0.87
0.81
Cho
udha
ry e
t al
. 20
11
17 α -
Eth
ynyl
-17 β
-hyd
roxy
andr
ost-
1,4-
dien
-3-o
ne C
epha
losp
oriu
m
aphi
dico
la a
nd
Cun
ning
ham
ella
el
egan
s
17 α -
Eth
ynyl
-11 α
,17 β
-dih
ydro
xyan
dros
t-4-
en-3
-one
17 α -
Eth
yl-1
1 α ,1
7 β -d
ihyd
roxy
andr
ost-
4-en
-3-o
neW
hole
-cel
l, S
haki
ng fl
ask
1.8
2.8
Cho
udha
ry e
t al
. 20
05
17 α -
Eth
yl-1
7 β -h
ydro
xyan
dros
t-1,
4-di
en-
3-on
e17
α -E
thyl
-6 α ,
17 β -
dihy
drox
y-5 α
-and
rost
an-3
-one
1.6
Pro
gest
eron
e M
ycel
ioph
thor
a th
erm
ophi
la
Tes
tost
eron
e ac
etat
e
11 β -
Hyd
roxy
prog
este
rone
11 α -
Hyd
roxy
prog
este
rone
Who
le-c
ell,
Sha
king
fl a
sk6 4 6
Hun
ter
et a
l. 20
09
Tes
tost
eron
e ac
etat
e14
α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e6
Tes
tost
eron
e11
α -H
ydro
xyte
stos
tero
ne6
And
rost
-4-e
n-3,
17-d
ione
6 β -H
ydro
xy-a
ndro
st-4
-en-
3,17
-dio
ne 7 α
-Hyd
roxy
andr
ost-
4-en
-3,1
7-di
one
4 8T
esto
ster
one
Cor
ynes
pora
cas
siic
ola
CB
S 1
61.6
08 β
-Hyd
roxy
andr
ost-
4-en
-3,1
7-di
one
9 α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e
6 α ,9
α -D
ihyd
roxy
andr
ost-
4-en
-3,1
7-di
one
8 α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e
Who
le-c
ell,
Sha
king
fl a
sk18 61 5 6
Hun
ter
et a
l. 20
11
And
rost
-4-e
n-3,
17-d
ione
9 α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e
9 α ,1
2 α -D
ihyd
roxy
andr
ost-
4-en
-3,1
7-di
one
8 β ,1
7 α -D
ihyd
roxy
preg
n-4-
en-3
,20-
dion
e
35 17 2517
α -H
ydro
xypr
oges
tero
ne15
β ,17
α -D
ihyd
roxy
preg
n-4-
en-3
,20-
dion
e 16
α ,17
α -E
poxy
-8 β -
hydr
oxyp
regn
-4-e
n-3,
20-d
ione
17 1116
α ,17
α -E
poxy
preg
n-4-
en-3
,20-
dion
e16
α ,17
α -E
poxy
-15 β
-hyd
roxy
preg
n-4-
en-3
,20-
dion
e16
(Con
tinue
d )
16 N. Nassiri-Koopaei & M. A. Faramarzi
Cor
texo
lone
8 β ,1
7 α -2
1-T
rihy
drox
ypre
gn-4
-en-
3,20
-dio
ne13
.6P
roge
ster
one
9 α ,1
5 β -D
ihyd
roxy
preg
n-4-
en-3
,20-
dion
e 7 α
,15 β
-Dih
ydro
xypr
egn-
4-en
-3,2
0-di
one
62 3P
roge
ster
one
Rhi
zom
ucor
tau
ricu
s IM
I233
126 β
-Hyd
roxy
prog
este
rone
6 β ,1
1 α -D
ihyd
roxy
prog
este
rone
Who
le-c
ell,
Sha
king
fl a
sk10 24
Hun
ter
et a
l. 20
08
And
rost
-4-e
n-3,
17-d
ione
6 β -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e
6 β ,1
1 α -D
ihyd
roxy
andr
ost-
4-en
-3,1
7-di
one
6 α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e 7 α
-Hyd
roxy
andr
ost-
4-en
-3,1
7-di
one
12 3 2 4T
esto
ster
one
6 β -H
ydro
xyte
stos
tero
ne 12
β -H
ydro
xyte
stos
tero
ne16 10
Pre
gnen
olon
e3 β
,7 β ,
12 β -
Tri
hydr
oxyp
regn
-5-e
n-20
-one
5D
ehyd
roep
iand
rost
eron
e3 β
,7 α -
Dih
ydro
xyan
dros
t-5-
en-1
7-on
e 3 β
,7 β -
Dih
ydro
xyan
dros
t-5-
en-1
7-on
e37 10
Deh
ydro
gena
tion
(Hyd
roxy
l gro
up o
xida
tion)
4 β
,17 β
-Dih
ydro
xy-4
α -m
ethy
l-5 α
-an
dros
tane
Cep
halo
spor
ium
ap
hidi
cola
4 β
-Hyd
roxy
-4 α -
met
hyl-
5 α -a
ndro
stan
-17-
one
4 β ,7
α -D
ihyd
roxy
-4 α -
met
hyl-
5 α -a
ndro
stan
-17-
one
Who
le-c
ell,
Sha
king
fl a
sk37 10
Ben
sass
on e
t al
. 19
99
19-N
orte
stos
tero
ne C
epha
losp
oriu
m
aphi
dico
la
19-N
oran
dros
t-4-
en-3
,17-
dion
eW
hole
-cel
l, S
haki
ng fl
ask
1H
anso
n et
al.
1996
And
rost
-4-e
n-3,
17-d
ione
Neu
rosp
ora
cras
sa
6 β ,1
4 α -D
ihyd
roxy
andr
ost-
4-en
-3,1
7-di
one
6 β ,9
α -D
ihyd
roxy
andr
ost-
4-en
-3,1
7-di
one
7 α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e
9 α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e 14
α -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
e
Who
le-c
ell,
Sha
king
fl a
sk21
.3
25.7
15.3 8.7
9.8
Far
amar
zi e
t al
. 20
08
Nan
drol
one
deca
noat
e A
crem
oniu
m s
tric
tum
E
str-
4-en
-3,1
7-di
one
15 α -
Hyd
roxy
estr
-4-e
n-3,
17-d
ione
Who
le-c
ell,
Sha
king
fl a
sk20
.4 4.9
Yaz
di e
t al
. 20
06
Rus
coge
nin
Dio
sgen
in S
arsa
sapo
geni
n
Phy
toph
thor
a ca
ctor
um
AT
CC
321
341-
Hyd
roxy
spir
ost-
4-en
-3-o
neW
hole
-cel
l, S
haki
ng fl
ask
ND
Che
n et
al.
2010
Deh
ydro
epia
ndro
ster
one
(DH
EA
) Pe
nici
llium
gr
iseo
purp
ureu
m
Sm
ith
and
Peni
cilli
um
glab
rum
(W
ehm
er)
Wes
tlin
g
And
rost
-4-e
n-3,
17-d
ione
Who
le-c
ell,
Sha
king
fl a
sk11
Hua
ng e
t al
. 20
10
19-N
orte
stos
tero
ne F
usar
ium
cul
mor
um
6 β -H
ydro
xy-1
9-no
rand
rost
ened
ione
Who
le-c
ell,
Sha
king
fl a
sk48
Ś wiz
dor
2005
4-M
ethy
ltes
tost
eron
e6 β
-Hyd
roxy
-4-m
ethy
land
rost
ened
ione
10T
esto
ster
one
Cha
etom
ium
sp.
KC
H
6651
6 β -H
ydro
xyan
dros
t-4-
en-3
,17-
dion
eW
hole
-cel
l, S
haki
ng fl
ask
21Ja
necz
ko e
t al
. 20
09
19-N
orte
stos
tero
ne Tr
icho
derm
a ha
mat
um
11 α -
Hyd
roxy
estr
-4-e
n-3,
17-d
ione
Est
r-1,
4-di
en-3
,17-
dion
eW
hole
-cel
l, S
haki
ng fl
ask
32 26B
artm
a ń sk
a 20
07
Tab
le I
. (C
onti
nued
)
Sub
stra
teM
icro
orga
nism
Pro
duct
Met
hod
of
Bio
tran
sfor
mat
ion
Yie
ld %
Ref
eren
ce
Fungal transformation of steroids 17
1-D
ehyd
rote
stos
tero
ne11
α -H
ydro
xyan
dros
t-1,
4-di
en-3
,17-
dion
e83
Dia
nabo
l6 α
-Hyd
roxy
andr
ost-
1,4-
dien
-3,1
7-di
one
11 α -
Hyd
roxy
andr
ost-
1,4-
dien
-3,1
7-di
one
14 2017
α -E
thyn
ylte
stos
tero
ne11
α -H
ydro
xyan
dros
t-1,
4-di
en-3
,17-
dion
e70
Cin
obuf
agin
Muc
or s
pino
sus
and
Asp
ergi
llus
nige
r 3-
oxo-
Des
acet
ylci
nobu
fagi
n 3-
oxo-
Cin
obuf
agin
Who
le-c
ell,
Sha
king
fl a
sk6.
2 4.
5H
e et
al.
2006
b
Tes
tost
eron
e pr
opio
nate
Peni
cilli
um n
otat
um
15 α -
Hyd
roxy
andr
ost-
4-en
-3,1
7-di
one
Who
le-c
ell,
Sha
king
fl a
sk29
Bar
tma ń
ska
et a
l. 20
05
19-N
orte
stos
tero
ne A
bsid
ia g
lauc
a 19
-Nor
andr
oste
nedi
one
Who
le-c
ell,
Sha
king
fl a
sk21
Hus
zcza
200
3b
Pre
dnis
olon
e A
crem
oniu
m s
tric
tum
11
β -H
ydro
xyan
dros
t-1,
4-di
en-3
,17-
dion
eW
hole
-cel
l, S
haki
ng fl
ask
ND
Far
amar
zi e
t al
. 20
08d
Pre
gnen
olon
e Pe
nici
llium
lila
cinu
m
AM
111
DH
EA
Pro
gest
eron
e A
ndro
sten
edio
ne
Who
le-c
ell,
Sha
king
fl a
sk42 15
Ko ł
ek e
t al
. 20
08
Pro
gest
eron
e Pe
nici
llium
au
rant
iogr
iseu
m
And
rost
-4-e
n-3,
17-d
ione
Who
le-c
ell,
Sha
king
fl a
skN
DG
hara
ei-F
atha
bad
and
Aro
ona
(201
1)P
hyto
ster
ol F
usar
ium
mon
ilifo
rme
And
rost
-4-e
n-3,
17-d
ione
Who
le-c
ell,
Sha
king
fl a
skH
igh
Lin
et
al.
2009
3 β -A
cety
lam
ino-
5 α -p
regn
an-2
0-on
e R
hizo
pus
arrh
izus
3 β
-Ace
tyla
min
o-5 α
-pre
gnan
-12,
20-d
ione
Who
le-c
ell,
Sha
king
fl a
sk17
Hol
land
et
al.
1998
Pro
gest
eron
e N
ectr
ia h
aem
atoc
occa
A
ndro
sten
edio
neW
hole
-cel
l, S
haki
ng fl
ask
3.5
Ahm
ed e
t al
. 19
96
Tes
tost
eron
e ac
etat
e M
ycel
ioph
thor
a th
erm
ophi
la
And
rost
-4-e
n-3,
17-d
ione
Who
le-c
ell,
Sha
king
fl a
sk10
Hun
ter
et a
l. 20
09
Tes
tost
eron
eA
ndro
st-4
-en-
3,17
-dio
ne8
Tes
tost
eron
e C
oryn
espo
ra c
assi
icol
a C
BS
161
.60
And
rost
-4-e
n-3,
17-d
ione
Who
le-c
ell,
Sha
king
fl a
sk5
Hun
ter
et a
l. 20
11
Red
uctio
n A
ndro
st-1
,4-d
ien-
3,17
-dio
ne A
crem
oniu
m s
tric
tum
17
β -H
ydro
xyan
dros
t-1,
4-di
en-3
-one
15 α ,
17 β -
Dih
ydro
xyan
dros
t-1,
4-di
en-3
-one
Tes
tost
eron
e
Who
le-c
ell,
Sha
king
fl a
sk23
.3 4.5
0.92
Far
amar
zi e
t al
. 20
06
Epi
andr
oste
rone
Bea
uver
ia b
assi
ana
3 β ,1
1 α ,1
7 β -T
rihy
drox
y-5 α
-and
rost
ane
Who
le-c
ell,
Sha
king
fl a
sk8
Ś wiz
dor
et a
l. 20
11
DH
EA
And
rost
ened
iol
3 β ,1
1 α ,1
7 β -T
rihy
drox
yand
rost
-5-e
ne3 11
And
rost
ened
ione
11 α -
Hyd
roxy
test
oste
rone
14P
roge
ster
one
11 α ,
17 β -
Dih
ydro
xy-5
β -an
dros
tan-
3-on
e18
3 β -H
ydro
xy-5
α -an
dros
tan-
17-o
ne C
epha
losp
oriu
m
aphi
dico
la
3 β ,1
1 α ,1
7 β -T
rihy
drox
y-5 α
-and
rost
ane
Who
le-c
ell,
Sha
king
fl a
sk12
Ben
sass
on e
t al
. 19
98
3 β ,1
9-D
ihyd
roxy
andr
ost-
5-en
-17-
one
3 β ,1
7 β ,1
9-T
rihy
drox
yand
rost
-5-e
ne6
(Con
tinue
d )
18 N. Nassiri-Koopaei & M. A. Faramarzi
Deh
ydro
epia
ndro
ster
one
(DH
EA
) Pe
nici
llium
gr
iseo
purp
ureu
m
Sm
ith
and
Peni
cilli
um
glab
rum
(W
ehm
er)
Wes
tlin
g
3 β -H
ydro
xy-1
7 α -o
xa-D
-hom
o-5 α
-and
rost
an-1
7-on
eW
hole
-cel
l, S
haki
ng fl
ask
2H
uang
et
al.
2010
And
rost
ened
ione
Sac
char
omyc
es c
erev
isia
e T
esto
ster
one
Who
le-c
ell,
Cyc
lode
xtri
n m
ediu
m
faci
litat
or
ND
Sin
ger
et a
l. 19
91
19-N
orte
stos
tero
ne F
usar
ium
cul
mor
um
6 β -H
ydro
xy-1
9-no
rand
rost
ened
ione
Who
le-c
ell,
Sha
king
fl a
sk48
Ś wiz
dor
2005
19-N
oran
dros
tene
dion
e6 β
-Hyd
roxy
-19-
nort
esto
ster
one
154-
Met
hylt
esto
ster
one
6 β -H
ydro
xy-4
-met
hyla
ndro
sten
edio
ne10
4-C
hlor
otes
tost
eron
e3 β
,15 α
-Dih
ydro
xy-4
-chl
oro-
4-an
dros
ten-
17-o
ne 3 β
,15 α
-Dih
ydro
xy-4
-chl
oro-
5 α -a
ndro
stan
-17-
one
22 39T
esto
ster
one
Peni
cilli
um c
rust
osum
5 α
-Dih
ydro
test
oste
rone
(D
HT
)W
hole
-cel
l, S
haki
ng fl
ask
ND
Flo
res
et a
l. 20
03
And
rost
en-4
-en-
3,17
-dio
ne S
chiz
osac
char
omyc
es
pom
be
Tes
tost
eron
eW
hole
-cel
l, S
haki
ng fl
ask
ND
Paj
ic e
t al
. 19
99
17 α ,
21-D
ihyd
roxy
preg
n-4-
en-3
,11,
20-
trio
ne F
usar
ium
oxy
spor
um v
ar.
cube
nse
17 α ,
20,2
1-T
rihy
drox
ypre
gn-4
-en-
3,11
-dio
neW
hole
-cel
l, S
haki
ng fl
ask
ND
Wils
on e
t al
. 19
99
And
rost
ened
ione
Peni
cilli
um n
otat
um
17 α -
Oxa
-D-h
omo-
5 α -a
ndro
stan
-3,1
7-di
one
Tes
tola
cton
eW
hole
-cel
l, S
haki
ng fl
ask
9 82B
artm
a ń sk
a et
al.
2005
Hyd
roco
rtis
one
Acr
emon
ium
str
ictu
m
PT
CC
528
211
β ,17
α ,20
β ,21
-Tet
rahy
drox
ypre
gn-4
-en-
3-on
e 21
-Ace
toxy
-11 β
,17 α
,20-
trih
ydro
xypr
egn-
4-en
-3-o
neW
hole
-cel
l, S
haki
ng fl
ask
11.2 7.6
Far
amar
zi e
t al
. 20
02
Adr
enos
tero
ne C
unni
ngha
mel
la e
lega
ns
11-K
etot
esto
ster
one
9 α -H
ydro
xy-1
1-ke
tote
stos
tero
ne 6 β
-Hyd
roxy
-11-
keto
test
oste
rone
Who
le-c
ell,
Sha
king
fl a
sk8.
7
12.4
13.8
Cho
udha
ry e
t al
. 20
07
Deo
xyco
rtic
oste
rone
Cep
halo
spor
ium
ap
hidi
cola
6 β
,20S
,21-
Tri
hydr
oxyp
regn
-4-e
n-3-
one
Who
le-c
ell,
Sha
king
fl a
sk9.
0H
anso
n 19
98
Cor
texo
lone
16 α ,
17 α -
Epo
xy-2
0R-h
ydro
xypr
egn-
4-en
-3-o
ne1.
516
,17-
Epo
xypr
oges
tero
ne6 β
,20R
-Dih
ydro
xy-1
6 α ,1
7 α -e
poxy
preg
n-4-
en-3
-one
21.0
17 α -
Eth
ynyl
-17 β
-hyd
roxy
andr
ost-
4-en
-3-
one
Cep
halo
spor
ium
ap
hidi
cola
and
C
unni
ngha
mel
la
eleg
ans
17 α -
Eth
ynyl
-17 β
-hyd
roxy
andr
ost-
1,4-
dien
-3-o
neW
hole
-cel
l, S
haki
ng fl
ask
5.5
Cho
udha
ry e
t al
. 20
05
And
rost
-4-e
n-3,
17-d
ione
Myc
elio
phth
ora
ther
mop
hila
5 α
-And
rost
an-3
α ,17
β -di
ol T
esto
ster
one
Who
le-c
ell,
Sha
king
fl a
sk10 4
Hun
ter
et a
l. 20
09
16,1
7-E
poxy
-pre
gn-4
-en-
3,20
-dio
ne C
oryn
espo
ra c
assi
icol
a C
BS
161
.60
15 β ,
20®
-Dih
ydro
xy-1
6 α ,1
7 α -e
poxy
-pre
gn-4
-en-
3,20
-dio
neW
hole
-cel
l, S
haki
ng fl
ask
16H
unte
r et
al.
2011
Hyd
roco
rtis
one
Neu
rosp
ora
cras
sa
11 β ,
17 α ,
20 β ,
21-T
etra
hydr
oxyp
regn
-4-e
n-3-
one
Who
le-c
ell,
Sha
king
fl a
sk18
.75
Fat
haba
d et
al.
2006
Tab
le I
. (C
onti
nued
)
Sub
stra
teM
icro
orga
nism
Pro
duct
Met
hod
of
Bio
tran
sfor
mat
ion
Yie
ld %
Ref
eren
ce
Fungal transformation of steroids 19
Hyd
roly
sis
(Sch
eme
4)N
andr
olon
e de
cano
ate
Acr
emon
ium
str
ictu
m
Est
r-4-
en-3
,17-
dion
e
17 β -
Hyd
roxy
estr
-4-e
n-3-
one
15 α -
Hyd
roxy
estr
-4-e
n-3,
17-d
ione
15 α ,
17 β -
Dih
ydro
xyes
tr-4
-en-
3-on
e
Who
le-c
ell,
Sha
king
fl a
sk20
.4
16.6 4.9
5.6
Yaz
di e
t al
. 20
06
Tes
tost
eron
e pr
opio
nate
Tric
hode
rma
ham
atum
A
ndro
st-1
,4-d
ien-
3,17
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ND
: N
ot d
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min
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Tab
le I
. (C
onti
nued
)
Sub
stra
teM
icro
orga
nism
Pro
duct
Met
hod
of
Bio
tran
sfor
mat
ion
Yie
ld %
Ref
eren
ce
Fungal transformation of steroids 21
R2O
R1O
OH
Ginsenoside
R2O
HO
OH
G-Mc
+
Glc O
HO
OH
C-K
R1 and R2:hexose oligomers
Fusarium sacchari
120 rpm, 96 h
OCOR
O
Nandrolone decanoate
Acremonium strictum
120 rpm, 6 days, 25 °CO
OH
17β-Hydroxyestr-4-en-3-one
Scheme 4. Hydrolysis reactions.
HO
Phytosterol
o
o
Fusarium moniliforme
150 rpm, 72 h, 30 °C
OH
O
OHO
Neurospora crassa
120 rpm, 5 days, 25 °C O
HO
OH O
Hydrocortisone 11β-Hydroxyandrost-4-en-3,17-dione
Androst-4-en-3,17-dione
OH
O
OHO
OH
Acremonium strictum
130 rpm, 72 h, 30 °C
O
HOOH
Hydrocortisone 11β,17β-Dihydroxyandrost-4-en-3-one
Scheme 5. Side-chain degradations.
22 N. Nassiri-Koopaei & M. A. Faramarzi
The products of methyl protodioscin bioconver-sion showed cytotoxicity in malignant cell culture (He et al. 2006a; Groussin and Antoniotti 2012), while Chen et al. (2010) studied the inhibitory effects of ruscogenin metabolites on tissue factor expression in the human monocyte cell line THP-1 cells stimulated by tumor necrosis factor-alpha (TNF- α ). Microbial steroid transformation might also be important in diagnostic medicine (Bredeh ö ft et al. 2012).
7 α -Hydroxylases are of biotechnological use in the production of bile acids for replacement therapy, dissolution of cholesterol gallstones, and as potential carriers of liver-specifi c drugs or absorption enhanc-ers (Forootanfar et al. 2011, Irrgang et al. 1997). 7 α -Hydroxylase activity can also be used for the production of immune modulators (Lobastova et al. 2009), while 11 β -hydroxylases are used in the production of anti-infl ammatory substances (Suzuki et al. 1993; Paraszkiewicz and D ł ugo ń ski 1998; Petri č et al. 2010). 14 α -Hydroxylases also show potential for pharmaceutical application.
Researchers have used microbial and fungal biotransformation reactions for the discovery of new compounds (Venisetty and Ciddi 2003; Ye et al. 2004; Liu and Yu 2010; Pervaiz et al. 2013). Steroid drugs, specifi cally, have been a particular focus as microbial biotransformations may mimic those of human metabolism (Tong and Dong 2009). These compounds can also be applied for therapeutic goals, especially for metabolic defi ciencies (Tin et al. 2011).
Č re š nar et al. (2009) have reviewed the toxicity of some mammalian steroid hormones to fungi, for prevention of fungal infections. Expanding our knowledge of steroid detoxifi cation through biotrans-formation can provide information on mechanisms of drug resistance in fungal infections. Dong et al. (2010) studied the pathways and kinetics of Dioscorea zingiberensis biotransformation by Aspergillus oryzae . Microbial transformation of dihydrotestosterone (DHT) by using Macrophomina phaseolina and Gibberella fujikuroi resulted in some potent butyryl-cholinesterase (BChE) inhibitors (Zafar et al. 2013).
Paraszkiewicz et al. (2002) investigated a bio-surfactant produced by the fungus Curvularia lunata and its possible role in the effi ciency of biotransformation. Ž nidar š i č et al. (1998) used the non-coagulative type of the pelleted form of the fi lamentous fungus Rhizopus nigricans to hydroxylate progesterone at the 11 α -position, and they investi-gated the parameters infl uencing the effi ciency of biotransformation.
Environmental applications
Steroid compounds are major environmental pollut-ants that can affect human health, with estrogens and anabolic steroids being prominent among them. These compounds may be biodegraded by microorganisms, which can lead to detoxifi cation, or potentially, an increase in toxicity. The characteriza-tion and defi nition of the processes involved would
O
O
O
Cinobufagin
O
O
O
HO
oO
O
O
HO
Mucor spinosus
180 rpm, 72 h, 28 °C
3-epi-12β-Hydroxyl cinobufagin
OH
Scheme 6. Isomerization.
OO
HO
OHO
O
HO
H
O
H
OH
H
H
O
OH
OH
Gliocladium deliquescens
180 rpm, 144h, 28 °C
Ruscogenin Glycosylated Ruscogenin
Scheme 7. Glycosylation.
Fungal transformation of steroids 23
assist with hazard removal (Lisowska and D ł ugonski 2003; McAdam et al. 2010; Silva et al. 2012).
Declaration of interest : The authors report no declarations of interest. The authors alone are responsible for the content and writing of the paper.
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