PMID- 30857329 OWN - NLM STAT- MEDLINE DCOM- 20190918 LR - 20200309 IS - 1999-4915 (Electronic) IS - 1999-4915 (Linking) VI - 11 IP - 3 DP - 2019 Mar 9 TI - Cytomegalovirus-Driven Adaption of Natural Killer Cells in NKG2C(null) Human Immunodeficiency Virus-Infected Individuals. LID - 10.3390/v11030239 [doi] LID - 239 AB - Expansion of natural killer (NK) cells expressing NKG2C occurs following human cytomegalovirus (HCMV) infection and is amplified by human immunodeficiency virus (HIV) co-infection. These NKG2C-expressing NK cells demonstrate enhanced CD16-dependent cytokine production and downregulate FcepsilonRIgamma and promyelocytic leukemia zinc finger protein (PLZF). Lacking NKG2C diminishes resistance to HIV infection, but whether this affects NK cell acquisition of superior antibody-dependent function is unclear. Therefore, our objective was to investigate whether HCMV-driven NK cell differentiation is impaired in NKG2C(null) HIV-infected individuals. Phenotypic (CD2, CD16, CD57, NKG2A, FcepsilonRIgamma, and PLZF expression) and functional (cytokine induction and cytotoxicity) properties were compared between HIV(-)infected NKG2C(null) and NKG2C-expressing groups. Cytokine production was compared following stimulation through natural cytotoxicity receptors or through CD16. Cytotoxicity was measured by anti-CD16-redirected lysis and by classical antibody-dependent cell-mediated cytotoxicity (ADCC) against anti-class I human leukocyte antigen (HLA) antibody-coated cells. Our data indicate highly similar HCMV-driven NK cell differentiation in HIV infection with or without NKG2C. While the fraction of mature (CD57(pos)) NK cells expressing CD2 (p = 0.009) or co-expressing CD2 and CD16 (p = 0.03) was significantly higher in NKG2C(null) HIV-infected individuals, there were no significant differences in NKG2A, FcepsilonRIgamma, or PLZF expression. The general phenotypic and functional equivalency observed suggests NKG2C-independent routes of HCMV-driven NK cell differentiation, which may involve increased CD2 expression. FAU - Comeau, Emilie M AU - Comeau EM AD - Immunology and Infectious Diseases Program, Division of BioMedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, 300 Prince Philp Drive, St. John's, NL A1B 3V6, Canada. emc878@mun.ca. FAU - Holder, Kayla A AU - Holder KA FAU - Fudge, Neva J AU - Fudge NJ FAU - Grant, Michael D AU - Grant MD LA - eng GR - PJT 361426/CIHR/Canada PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190309 PL - Switzerland TA - Viruses JT - Viruses JID - 101509722 RN - 0 (Cytokines) RN - 0 (FCGR3B protein, human) RN - 0 (FcepsilonRI gamma-chain, human) RN - 0 (GPI-Linked Proteins) RN - 0 (KLRC2 protein, human) RN - 0 (NK Cell Lectin-Like Receptor Subfamily C) RN - 0 (Promyelocytic Leukemia Zinc Finger Protein) RN - 0 (Receptors, IgE) RN - 0 (Receptors, IgG) RN - 147855-37-6 (ZBTB16 protein, human) SB - IM MH - Adult MH - Antibody-Dependent Cell Cytotoxicity MH - Cell Differentiation MH - Coinfection/immunology/virology MH - Cytokines/immunology MH - Cytomegalovirus/*pathogenicity MH - Cytomegalovirus Infections/*immunology MH - Female MH - GPI-Linked Proteins/genetics/immunology MH - HIV Infections/*immunology MH - Humans MH - Killer Cells, Natural/cytology/*virology MH - Lymphocyte Activation MH - Male MH - Middle Aged MH - NK Cell Lectin-Like Receptor Subfamily C/*genetics/immunology MH - Promyelocytic Leukemia Zinc Finger Protein/genetics/immunology MH - Receptors, IgE/genetics/immunology MH - Receptors, IgG/genetics/immunology PMC - PMC6466323 OTO - NOTNLM OT - ADCC OT - CD16 OT - CD2 OT - FcepsilonRIgamma OT - HCMV OT - HIV OT - NKG2A OT - NKG2C OT - NKG2Cnull OT - PLZF COIS- The authors declare no conflict of interest. EDAT- 2019/03/13 06:00 MHDA- 2019/09/19 06:00 PMCR- 2019/03/01 CRDT- 2019/03/13 06:00 PHST- 2019/02/11 00:00 [received] PHST- 2019/03/01 00:00 [revised] PHST- 2019/03/05 00:00 [accepted] PHST- 2019/03/13 06:00 [entrez] PHST- 2019/03/13 06:00 [pubmed] PHST- 2019/09/19 06:00 [medline] PHST- 2019/03/01 00:00 [pmc-release] AID - v11030239 [pii] AID - viruses-11-00239 [pii] AID - 10.3390/v11030239 [doi] PST - epublish SO - Viruses. 2019 Mar 9;11(3):239. doi: 10.3390/v11030239.