Microbiota Cutaneo, Salute e Bellezza - sisteweb.it 1 luglio mattina/6 ALESSANDRA DE... ·...
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Alessandra DE MARTINO
Biofortis Mérieux Nutrisciences (Nantes, Francia)
1 Luglio 2016
Microbiota Cutaneo, Salute e Bellezza
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BIOFORTIS
WHO WE ARE ?
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An Institut Mérieux company
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Over 12,000 people committed to global public health
Industrial sites and laboratories in 40 countries
Sales of over 1.8 billion euros
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INNOVATION SERVICES
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Biofortis: Innovation Services
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Biofortis serves innovation in
Nutrition, Health, Cosmetics…
Health Benefits, Tolerance Studies
Portfolio, Life Cycle, licencing
support
Market Insight and Consumers
Tendances
Internal & collaborative R&D projects
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Biofortis European Center for Innovation
3 main activities: CIC, Senso labs, Analytical Platform
>2500 m²
65 coll. in Nantes (85 in Fr incl. Paris)
International R&D Center,
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Murielle Cazaubiel
Managing Director Europe Sensory + Consumer + Clinical
BIOFORTIS SENSORY, CONSUMER AND CLINICAL EXPERTS
Lise Dreyfuss
Sensory & Consumer expert
Sébastien Leuillet
Statistical and data management expert
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+ according to topics, possibility to integrate other expert managers in Biofortis team
(toxicology, regulatory affairs, …)
Biofortis dedicated team for each project
Virginie Kersulec
Sensory & Consumer manager Stéphane Deniau
Clinical Manager
*Strategy and development of project
Isabelle Marx (S&C), Fabrice Richard (Clinical)
Alessandra De Martino
Scientist, Microbiota expert
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PRESENTATION OF
CLINICAL ACTIVITIES
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Bioinfo / Biostatistics
Study Design & Recruitment
Biological sampling
Samples logistics
& processing
Biobanking / Biospecimen provider
Biological analysis
Microbiota platform
Medical writing
Innovation Services
For Industry and Research
Data Management
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Microbiota Monitoring
Skin
Vaginal
Gut
Oral
Drugs, Food Supplements, Cosmetics…
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FOCUS ON SKIN MICROBIOTA
ANALYSIS
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Change of concept : ‘Some of My Best Friends Are Germs’
We co-habit with our microbiome
“We are on the threshold of making profound discoveries about the
microorganisms with which we share our bodies”
Mueller et al., 2012 June - Science
© Google images
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Skin microbiota diversity
…. 10 à 100 trillions microorganisms
…. 100 to 100 Millions bacteria / cm2 of skin
…. More than 500 bacterial species
…. 2 Millions of bacterial genes
© Google image
The Human Microbiome : diversity
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Adapted from Round JL et al. 2009 Nature Reviews Immunology
“ Pathobionts ”
Equilibrium (= health)
Symbionts
Commensals
Homeostasy
Disease
shock
Resilience
The Human Microbiome : equilibrium
We should maintain the skin microbiota
equilibrium to preserve the good
physiology of our skin
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The Human Microbiome : An Increased Interest
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Scientific studies on the Skin flora
…. Increase of study report in the last 10 years
…. High quality publications (Nature, PNAS, Plos One…)
…. Highly health related insight
Evolution of the number of
publications on skin Microbiomes
40 41 50 60 65
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Skin microbiomes
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Factors influencing our microbiome
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Skin Microbiome diversity
…. Four main phyla : Actinobacteria ; Firmicutes ;
Proteobacteria ; Bacteroidetes
…. High diversity according body site
…. Two hemi-body features are similar (right & left)
…. Inter-individual variability
…. Differences between women and men
.... Diversity according life habit (personal care, diet,
smoking / non smoking, medication…)
… Quite stable along life adult
Elisabeth A. Grice, Nature Rev Microb. 2011
Yiyin Erin Chen, J Am Acad Dermatol 2013
The NIH HMP Working group et al Genome Res. 2009
The Human Skin Microbiota - Diversity
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Different environment for the skin flora
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The Human Skin Microbiome - Diversity
Skin microbiome community
Differences based on skin features
…. Oily skin
…. Moist skin
…. Dry skin
Propionibacteria spp
Corynebacteria spp
Staphylococci spp
© Google image
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The Human Microbiome : A Key
Physiological Role In Human Health
Gut microbiome : 3 main beneficial functions
Metabolic functions
Protective functions
Structural and histological functions
Prakash et al., 2011
Link between the gut and skin microbiomes Immune mediators
in the systemic circulation from
gut to skin and vice versa
Skin Microbiome
Protective functions
Structural functions
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Claims & points of
attention
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To better characterize the skin microbiome and diversity
…. Health ‘indicators’ (healthy skin vs pathological skin)
…. Inter- and intra- Individual variability (age, stress, geographical origins, body sites, nutritions...)
To explore the topical effect of a product on skin microbiota
…. To evaluate non disturbing effect on the skin microbiome
…. To identify the benefic effect of a product (‘remodeling the Microbiota with skin improvement).
To explore the effect of probiotic intake on skin & gut microbiota
…. Correlation of skin & gut microbiota profiles with physiology of the skin (e.g. dry vs moist skin…)
…. Effect on skin pathologies = improvement of allergy, reactive skin, dermatite atopic, dandruff…
=> Microbiome equilibrium, richness, diversity.
New insight for innovation
To developp healthy products
Claims For Skin Microbiota Analysis
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Take Home Message
“With such knowledge, instead of reaching for a hand
sanitizer that kills such populations, we might soon be able
to reach for a product that fertilizes our skin microbiota to
improve its ability to resist the colonization by potentially
pathogenic organisms.”
Schloss Nature 2014
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“Mother Dirt” Example of fertilization
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The skin Microbiome Monitoring :
Points of Attention
Skin microbiome analysis : points of attention
Skin flora monitoring
…. Need well defined study design
…. Need procedure with Quality system for sampling and storage
…. Need to define the molecular methodology for monitoring
Bioinformatic analysis
…. Need bioinformatic pipelines for data analysis
…. Need microbiota experts for results interpretation
‘
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Clinico-Microbiota
Study in Biofortis
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Skin Microbiome Monitoring :
Biofortis Sampling Procedures
© PMD Medical
© Google image
Zone T
Swabbing method validated
…. Non invasive method
…. DNA recovery
…. Easy to use
…. Fast
Sampling method
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Skin Microbiome Monitoring :
Two differents approaches / Your claims
qPCR approach
• Micro-organism quantification
• Detection of specific target (genus, species)
Metasequencing approach
(Mi Seq Illumina)
• Powerfull approach to determine microbiota
composition V0 (screen / inclusion)
Sampling area
(example)
V final
Treatment
period
Treated area : ‘test
product’ (left side) vs
control product (right
side)
Clinical study of microbiota analysis • Comparative study : each volunteer is his own control
• Product to test versus a control (in hemi-parallele sites)
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Biofortis Microbiota Platform:
Metasequencing Analysis
MiSeq Illumina
Sample
preparation
Pre-
sequencing Sequencing Quality
control
Data analysis
• Taxonomical Metasequencing based on the genes coding
for the 16S RNA
• Phylum/Family /genus compositions
• Diversity index / richness
Metasequencing studies help to understand the microbial
biodiversity
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Bioinformatic pipelines &
Scientific Communication: 4 packages
Data analysis - Level #1 => descriptive statistics will be provided
- OTU (Operational Taxonomic Units) clustering
- Calculation of diversity and richness index
- Taxonomic classification of sequences
- Report including tables and graphs (barplots of taxa relative abundances)
Data analysis - Level #2 => Custom inferential statistical analysis
to be discussed with the Sponsor to define the objectives of the data analysis,
which could include:
- Graphical multivariate approches (ex: hierarchical clustering, PCoA, ...)
- Detection of differentially abundant features between conditions
- Investigation of the relationship between clinical variables and taxa relative
abundances
- ...
Data analysis of level #3 => Scientific interpretation. Scientific
communication.
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METASEQUENCING DATA ANALYSIS (LEVEL # 1)
OTU (Operational Taxonomic Units) clustering
Taxonomic classification of OTUs
Calculation of diversity and richness index
Report including tables and graphs (barplots of taxa relative abundances)
Only descriptive statistics will be provided
Example : Microbiota composition (Genus)
Taxonomical Metasequencing Level # 1: Study of the microbiota composition
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METASEQUENCING DATA ANALYSIS (LEVEL # 2)
Custom inferential statistical analysis, to be discussed with the Sponsor to define the objectives of the data
analysis, which could include:
Graphical multivariate approches (ex: hierarchical clustering, PCoA, ...)
Detection of differentially abundant features between conditions
Investigation of the relationship between clinical variables and taxa relative abundances
…
Taxonomical Metasequencing Level # 2: Study of the microbiota composition
PCoA: Principal coordinates analysis (or classical multidimensional scaling),
a statistical method used to explore similarities in data set.
Source HMP
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Metasequencing Data Analysis (level # 3)
Taxonomical Metasequencing Level # 3: Study of the microbiota composition
Scientific interpretation with reviewing the litterature
Link with other biological parameters (clinical data)
Next strategy proposal
Scientific communication (poster, publication…)
Adhoc solution / support from A to Z
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Krona zoomable pie charts (Ondov et al., 2011)
36 Ondov BD, Bergman NH, and Phillippy AM. Interactive metagenomic visualization in a Web browser. BMC Bioinformatics. 2011 Sep 30; 12(1):385.
Metagenomic: Dynamic data analysis
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“Skin Friendly” products: a new land of
promise
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The skin microbiome strongly contributes to healthy skin
Skin barrier integrity and homeostasis
Role against pathogens
Enhancement of the immune system
Biofortis can assist you all along your product life cycle to:
Investigate the efficacy and safety of your product on skin health (preservation, modulation…)
Improve the effect of your product on
Screen the right formula (ingredient, active compound, optimal dose…) to prevent skin disorders or to preserve the skin flora equilibrium and diversity
Develop specific products for a proper skin care according to skin diversity (ethnicities, life habits, environment…)
Make your product respectful of skin health
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Thank you for your attention !