Format

Send to

Choose Destination
See comment in PubMed Commons below
PLoS Pathog. 2011 Oct;7(10):e1002279. doi: 10.1371/journal.ppat.1002279. Epub 2011 Oct 6.

Critical roles for LIGHT and its receptors in generating T cell-mediated immunity during Leishmania donovani infection.

Author information

1
Queensland Institute of Medical Research and the Australian Centre for Vaccine Development, Herston, Queensland, Australia.

Abstract

LIGHT (TNFSF14) is a member of the TNF superfamily involved in inflammation and defence against infection. LIGHT signals via two cell-bound receptors; herpes virus entry mediator (HVEM) and lymphotoxin-beta receptor (LTβR). We found that LIGHT is critical for control of hepatic parasite growth in mice with visceral leishmaniasis (VL) caused by infection with the protozoan parasite Leishmania donovani. LIGHT-HVEM signalling is essential for early dendritic cell IL-12/IL-23p40 production, and the generation of IFNγ- and TNF-producing T cells that control hepatic infection. However, we also discovered that LIGHT-LTβR interactions suppress anti-parasitic immunity in the liver in the first 7 days of infection by mechanisms that restrict both CD4(+) T cell function and TNF-dependent microbicidal mechanisms. Thus, we have identified distinct roles for LIGHT in infection, and show that manipulation of interactions between LIGHT and its receptors may be used for therapeutic advantage.

PMID:
21998581
PMCID:
PMC3188526
DOI:
10.1371/journal.ppat.1002279
[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Public Library of Science Icon for PubMed Central
    Loading ...
    Support Center