Genetic Diversity of Toll-Like Receptors and Immunity to M. leprae Infection

Genetic association studies of leprosy cohorts across the world have identified numerous polymorphisms which alter susceptibility and outcome to infection with Mycobacterium leprae. As expected, many of the polymorphisms reside within genes that encode components of the innate and adaptive immune sy...

Full description

Bibliographic Details
Published in:Journal of Tropical Medicine
Main Authors: Bryan E. Hart, Richard I. Tapping
Format: Article in Journal/Newspaper
Language:English
Published: Hindawi Limited 2012
Subjects:
Online Access:https://doi.org/10.1155/2012/415057
https://doaj.org/article/249b7cec46d740d59968d6203fb2ef8e
Description
Summary:Genetic association studies of leprosy cohorts across the world have identified numerous polymorphisms which alter susceptibility and outcome to infection with Mycobacterium leprae. As expected, many of the polymorphisms reside within genes that encode components of the innate and adaptive immune system. Despite the preponderance of these studies, our understanding of the mechanisms that underlie these genetic associations remains sparse. Toll-like receptors (TLRs) have emerged as an essential family of innate immune pattern recognition receptors which play a pivotal role in host defense against microbes, including pathogenic strains of mycobacteria. This paper will highlight studies which have uncovered the association of specific TLR gene polymorphisms with leprosy or tuberculosis: two important diseases resulting from mycobacterial infection. This analysis will focus on the potential influence these polymorphic variants have on TLR expression and function and how altered TLR recognition or signaling may contribute to successful antimycobacterial immunity.