Review
doi: 10.1038/ni1443.
The function of programmed cell death 1 and its ligands in regulating autoimmunity and infection
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- PMID: 17304234
- DOI: 10.1038/ni1443
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Review
The function of programmed cell death 1 and its ligands in regulating autoimmunity and infection
Nat Immunol.
2007 Mar.
Abstract
The programmed cell death 1 (PD-1) surface receptor binds to two ligands, PD-L1 and PD-L2. Studies have shown that PD-1-PD-L interactions control the induction and maintenance of peripheral T cell tolerance and indicate a previously unknown function for PD-L1 on nonhematopoietic cells in protecting tissues from autoimmune attack. PD-1 and its ligands have also been exploited by a variety of microorganisms to attenuate antimicrobial immunity and facilitate chronic infection. Here we examine the functions of PD-1 and its ligands in regulating antimicrobial and self-reactive T cell responses and discuss the therapeutic potential of manipulating this pathway.
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