ATEROSCLEROSI Atherosclerosis is an inflammatory disease characterized by intense immunological...

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Transcript of ATEROSCLEROSI Atherosclerosis is an inflammatory disease characterized by intense immunological...

Page 1: ATEROSCLEROSI Atherosclerosis is an inflammatory disease characterized by intense immunological activity, which increasingly threatens human health worldwide.
Page 2: ATEROSCLEROSI Atherosclerosis is an inflammatory disease characterized by intense immunological activity, which increasingly threatens human health worldwide.

ATEROSCLEROSI

Page 3: ATEROSCLEROSI Atherosclerosis is an inflammatory disease characterized by intense immunological activity, which increasingly threatens human health worldwide.

Atherosclerosis is an inflammatory disease characterized by intense immunological activity, which increasingly threatens human health worldwide.

Atherosclerosis involves the formation in the arteries of lesions that are characterized by inflammation, lipid accumulation, cell death and fibrosis. Over time, these lesions, which are known as atherosclerotic plaques, mature and gain new characteristics.

HANSON AND LIBBYNature Reviews Immunology 6:508-519, 2006

Page 4: ATEROSCLEROSI Atherosclerosis is an inflammatory disease characterized by intense immunological activity, which increasingly threatens human health worldwide.
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FATTORI DI RISCHIO E TEORIA DELLA REAZIONE AL DANNO

Page 6: ATEROSCLEROSI Atherosclerosis is an inflammatory disease characterized by intense immunological activity, which increasingly threatens human health worldwide.
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von Andrian UH and Mackay CR N Engl J Med 343, 1020, 2000

L ’inattivazione di geni codificanti per proteine implicate nel reclutamento monocitario riduce lo sviluppo diLesioni ateroscelrotiche in topi con inattivazione genica di APOE o LDL-R

X X XX

X

MCP-1

CX3C, CXCR2, CCR2 chain

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Pathogen-associated molecular patternsPathogen-associated molecular patterns Damage-associated molecular patternsDamage-associated molecular patterns

Nuclear proteins:-HMGB1 (high mobility group box1 protein)-Histones-Cytosolic proteins: heat shock proteins

Nuclear proteins:-HMGB1 (high mobility group box1 protein)-Histones-Cytosolic proteins: heat shock proteins

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Formazione di NETs Danno endoteliale

In seguito all’esposizione ad endotossine le piastrine interagiscono (???) con PMNinducendo la formazione di NETs

TLR4

batteri

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Inizio lesione: eliminazione“cause”

APPROCCI PREVENTIVI E TERAPEUTICI

Progressione della placca: inibizioneformazione di placca “instabile”

Complicanze trombotiche: riduzione fattori favorentiformazione di trombi

Stabilizzazione della placca

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