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Semin Immunol. 2004 Feb;16(1):35-41.

The role of Toll-like receptors in combating mycobacteria.

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Department of Microbiology and Immunology, Division of Dermatology, 52-121 CHS, David Geffen School of Medicine at UCLA, 10833 Le Conte Avenue, Los Angeles, CA 90095, USA.


In the battle against infections with mycobacteria, the body employs components of both the innate and adaptive arms of the immune system. Toll-like receptors (TLRs) mediate the activation of cells of the innate immune system leading to dynamic functions including direct anti-microbial activity, induction of cytokine secretion, triggering dendritic cell maturation, and triggering apoptosis. Furthermore, TLR activation is capable of modulating the adaptive immune response with a bias towards a Th1 T-cell response. However, the activation of TLRs by mycobacteria may also provide a means of immune evasion. Therefore, the modulation of TLR activation can influence the ability to properly destroy invading pathogens such as mycobacteria.

[Indexed for MEDLINE]

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