PMID- 26647083 OWN - NLM STAT- MEDLINE DCOM- 20160720 LR - 20220317 IS - 1365-2249 (Electronic) IS - 0009-9104 (Print) IS - 0009-9104 (Linking) VI - 184 IP - 1 DP - 2016 Apr TI - Functional advantage of educated KIR2DL1(+) natural killer cells for anti-HIV-1 antibody-dependent activation. PG - 101-9 LID - 10.1111/cei.12752 [doi] AB - Evidence from the RV144 HIV-1 vaccine trial implicates anti-HIV-1 antibody-dependent cellular cytotoxicity (ADCC) in vaccine-conferred protection from infection. Among effector cells that mediate ADCC are natural killer (NK) cells. The ability of NK cells to be activated in an antibody-dependent manner is reliant upon several factors. In general, NK cell-mediated antibody-dependent activation is most robust in terminally differentiated CD57(+) NK cells, as well as NK cells educated through ontological interactions between inhibitory killer immunoglobulin-like receptors (KIR) and their major histocompatibility complex class I [MHC-I or human leucocyte antigen (HLA-I)] ligands. With regard to anti-HIV-1 antibody-dependent NK cell activation, previous research has demonstrated that the epidemiologically relevant KIR3DL1/HLA-Bw4 receptor/ligand combination confers enhanced activation potential. In the present study we assessed the ability of the KIR2DL1/HLA-C2 receptor/ligand combination to confer enhanced activation upon direct stimulation with HLA-I-devoid target cells or antibody-dependent stimulation with HIV-1 gp140-pulsed CEM.NKr-CCR5 target cells in the presence of an anti-HIV-1 antibody source. Among donors carrying the HLA-C2 ligand for KIR2DL1, higher interferon (IFN)-gamma production was observed within KIR2DL1(+) NK cells than in KIR2DL1(-) NK cells upon both direct and antibody-dependent stimulation. No differences in KIR2DL1(+) and KIR2DL1(-) NK cell activation were observed in HLA-C1 homozygous donors. Additionally, higher activation in KIR2DL1(+) than KIR2DL1(-) NK cells from HLA-C2 carrying donors was observed within less differentiated CD57(-) NK cells, demonstrating that the observed differences were due to education and not an overabundance of KIR2DL1(+) NK cells within differentiated CD57(+) NK cells. These observations are relevant for understanding the regulation of anti-HIV-1 antibody-dependent NK cell responses. CI - (c) 2016 British Society for Immunology. FAU - Gooneratne, S L AU - Gooneratne SL AD - Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia. FAU - Center, R J AU - Center RJ AD - Centre for Biomedical Research, Burnet Institute, Melbourne, VIC, Australia. FAU - Kent, S J AU - Kent SJ AD - Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia. AD - Melbourne Sexual Health Centre, Carlton, VIC, Australia. AD - ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of Melbourne, Melbourne, VIC, Australia. FAU - Parsons, M S AU - Parsons MS AD - Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia. LA - eng PT - Journal Article DEP - 20160204 PL - England TA - Clin Exp Immunol JT - Clinical and experimental immunology JID - 0057202 RN - 0 (CD57 Antigens) RN - 0 (HIV Antibodies) RN - 0 (HLA-C Antigens) RN - 0 (KIR2DL1 protein, human) RN - 0 (Receptors, KIR2DL1) RN - 0 (Recombinant Proteins) RN - 0 (env Gene Products, Human Immunodeficiency Virus) RN - 0 (gp140 envelope protein, Human immunodeficiency virus 1) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Alleles MH - CD4-Positive T-Lymphocytes/drug effects/immunology/virology MH - CD57 Antigens/genetics/immunology MH - Gene Expression MH - HIV Antibodies/*biosynthesis/pharmacology MH - HIV Infections/immunology/virology MH - HIV-1/*immunology MH - HLA-C Antigens/classification/genetics/*immunology MH - Histocompatibility Testing MH - Humans MH - *Immunity, Humoral MH - Immunologic Memory/drug effects MH - Interferon-gamma/biosynthesis/immunology MH - Killer Cells, Natural/*drug effects/immunology/virology MH - Lymphocyte Activation/drug effects MH - Primary Cell Culture MH - Receptors, KIR2DL1/deficiency/genetics/*immunology MH - Recombinant Proteins/genetics/immunology/pharmacology MH - env Gene Products, Human Immunodeficiency Virus/genetics/immunology/pharmacology PMC - PMC4778096 OTO - NOTNLM OT - AIDS OT - killer immunoglobulin-like receptors OT - natural killer cells EDAT- 2015/12/10 06:00 MHDA- 2016/07/21 06:00 PMCR- 2017/04/01 CRDT- 2015/12/10 06:00 PHST- 2015/07/08 00:00 [received] PHST- 2015/11/13 00:00 [revised] PHST- 2015/11/25 00:00 [accepted] PHST- 2015/12/10 06:00 [entrez] PHST- 2015/12/10 06:00 [pubmed] PHST- 2016/07/21 06:00 [medline] PHST- 2017/04/01 00:00 [pmc-release] AID - CEI12752 [pii] AID - 10.1111/cei.12752 [doi] PST - ppublish SO - Clin Exp Immunol. 2016 Apr;184(1):101-9. doi: 10.1111/cei.12752. Epub 2016 Feb 4.