Differential production of interleukin-10 and interleukin-12 in mononuclear cells from leprosy patients with a Toll-like receptor 2 mutation.

Abstract:

:Toll-like receptor 2 (TLR2) is a key mediator of the immune response to mycobacterial infections, and mutations in TLR2 have been shown to confer susceptibility to infection with mycobacteria. This study investigated the profiles of cytokines, such as interferon (IFN)-gamma, interleukin (IL)-10, IL-12 and tumour necrosis factor (TNF)-alpha in response to Mycobacterium leprae in peripheral blood mononuclear cells (PBMC) with the TLR2 mutation Arg677Trp, a recently reported polymorphism that is associated with lepromatous leprosy. In leprosy patients with the TLR2 mutation, production of IL-2, IL-12, IFN-gamma, and TNF-alpha by M. leprae-stimulated PBMC were significantly decreased compared with that in groups with wild-type TLR2. However, the cells from patients with the TLR2 mutation showed significantly increased production of IL-10. There was no significant difference in IL-4 production between the mutant and wild-type during stimulation. Thus, these results suggest that the TLR2 signal pathway plays a critical role in the alteration of cytokine profiles in PBMC from leprosy patients and the TLR2 mutation Arg677Trp provides a mechanism for the poor cellular immune response associated with lepromatous leprosy.

journal_name

Immunology

journal_title

Immunology

authors

Kang TJ,Yeum CE,Kim BC,You EY,Chae GT

doi

10.1111/j.1365-2567.2004.01926.x

keywords:

subject

Has Abstract

pub_date

2004-08-01 00:00:00

pages

674-80

issue

4

eissn

0019-2805

issn

1365-2567

pii

IMM1926

journal_volume

112

pub_type

杂志文章