Natural Killer Cell Interactions with Classical and Non-Classical Human Leukocyte Antigen Class I in HIV-1 Infection
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Hölzemer, Angelique
Garcia-Beltran, Wilfredo F.
Altfeld, Marcus
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https://doi.org/10.3389/fimmu.2017.01496Metadata
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Hölzemer, Angelique, Wilfredo F. Garcia-Beltran, and Marcus Altfeld. 2017. “Natural Killer Cell Interactions with Classical and Non-Classical Human Leukocyte Antigen Class I in HIV-1 Infection.” Frontiers in Immunology 8 (1): 1496. doi:10.3389/fimmu.2017.01496. http://dx.doi.org/10.3389/fimmu.2017.01496.Abstract
Natural killer (NK) cells are effector lymphocytes of the innate immune system that are able to mount a multifaceted antiviral response within hours following infection. This is achieved through an array of cell surface receptors surveilling host cells for alterations in human leukocyte antigen class I (HLA-I) expression and other ligands as signs of viral infection, malignant transformation, and cellular stress. This interaction between HLA-I ligands and NK-cell receptor is not only important for recognition of diseased cells but also mediates tuning of NK-cell-effector functions. HIV-1 alters the expression of HLA-I ligands on infected cells, rendering them susceptible to NK cell-mediated killing. However, over the past years, various HIV-1 evasion strategies have been discovered to target NK-cell-receptor ligands and allow the virus to escape from NK cell-mediated immunity. While studies have been mainly focusing on the role of polymorphic HLA-A, -B, and -C molecules, less is known about how HIV-1 affects the more conserved, non-classical HLA-I molecules HLA-E, -G, and -F. In this review, we will focus on the recent progress in understanding the role of non-classical HLA-I ligands in NK cell-mediated recognition of HIV-1-infected cells.Other Sources
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5694438/pdf/Terms of Use
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