Inhibitory killer cell immunoglobulin-like receptors strengthen CD8+ T cell-mediated control of HIV-1, HCV, and HTLV-1
Inhibitory killer cell immunoglobulin-like receptors strengthen CD8+ T cell-mediated control of HIV-1, HCV, and HTLV-1
Killer cell immunoglobulin-like receptors (KIRs) are expressed predominantly on natural killer cells, where they play a key role in the regulation of innate immune responses. Recent studies show that inhibitory KIRs can also affect adaptive T cell-mediated immunity. In mice and in human T cells in vitro, inhibitory KIR ligation enhanced CD8+ T cell survival. To investigate the clinical relevance of these observations, we conducted an extensive immunogenetic analysis of multiple independent cohorts of HIV-1-, hepatitis C virus (HCV)-, and human T cell leukemia virus type 1 (HTLV-1)-infected individuals in conjunction with in vitro assays of T cell survival, analysis of ex vivo KIR expression, and mathematical modeling of host-virus dynamics. Our data suggest that functional engagement of inhibitory KIRs enhances the CD8+ T cell response against HIV-1, HCV, and HTLV-1 and is a significant determinant of clinical outcome in all three viral infections.
Boelen, Lies
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Debebe, Bisrat
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Silveira, Marcos
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Salam, Arafa
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Makinde, Julia
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Roberts, Chrissy H.
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Wang, Eddie C.Y.
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Frater, John
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Gilmour, Jill
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Twigger, Katie
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Ladell, Kristin
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Miners, Kelly L.
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Jayaraman, Jyothi
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Traherne, James A.
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Price, David A.
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Qi, Ying
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Martin, Maureen P.
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Macallan, Derek C.
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Thio, Chloe L.
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Astemborski, Jacquie
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Kirk, Gregory
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Donfield, Sharyne M.
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Buchbinder, Susan
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Khakoo, Salim I.
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Goedert, James J.
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Trowsdale, John
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Carrington, Mary
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Kollnberger, Simon
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Asquith, Becca
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30 November 2018
Boelen, Lies
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Debebe, Bisrat
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Silveira, Marcos
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Salam, Arafa
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Makinde, Julia
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Roberts, Chrissy H.
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Wang, Eddie C.Y.
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Frater, John
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Gilmour, Jill
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Twigger, Katie
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Ladell, Kristin
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Miners, Kelly L.
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Jayaraman, Jyothi
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Traherne, James A.
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Price, David A.
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Qi, Ying
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Martin, Maureen P.
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Macallan, Derek C.
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Thio, Chloe L.
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Astemborski, Jacquie
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Kirk, Gregory
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Donfield, Sharyne M.
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Buchbinder, Susan
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Khakoo, Salim I.
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Goedert, James J.
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Trowsdale, John
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Carrington, Mary
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Kollnberger, Simon
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Asquith, Becca
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