The immunopathogenesis of Crohn's disease: a three-stage model.

Abstract:

:The pathogenesis of Crohn's disease (CD) has remained an enigma for at least a century. There was considerable optimism that genetic linkage and genome-wide association (GWA) studies had identified genes causally responsible. However, the realisation that these genes make a relatively minor contribution to the development of CD has led to the acceptance of a 'missing heritability'. In contrast to the weak genetic effects, patients with CD almost without exception exhibit a gross phenotype, namely a profound systemic failure of the acute inflammatory response. This results in markedly delayed clearance of bacteria from the tissues, leading to local chronic granulomatous inflammation and compensatory adaptive immunological changes, as well as constitutional symptoms.

journal_name

Curr Opin Immunol

authors

Sewell GW,Marks DJ,Segal AW

doi

10.1016/j.coi.2009.06.003

subject

Has Abstract

pub_date

2009-10-01 00:00:00

pages

506-13

issue

5

eissn

0952-7915

issn

1879-0372

pii

S0952-7915(09)00134-4

journal_volume

21

pub_type

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