NOD2 3020insC mutation and the pathogenesis of Crohn's disease: impaired IL-1beta production points to a loss-of-function phenotype.

Abstract excerpt

BACKGROUND: Mutations of the NOD2 gene increase the susceptibility of humans to Crohn's disease. NOD2 is a cytoplasmic receptor for the bacterial product peptidoglycan. There is considerable controversy in the literature whether the most common mutation in Crohn's disease, the 3020insC NOD2, leads to a loss of function, i.e. decreased cytokine production, or to the reverse, i.e. a gain of function. In previous...

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