PMID- 25264760 OWN - NLM STAT- MEDLINE DCOM- 20150928 LR - 20211021 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 9 IP - 9 DP - 2014 TI - Association of HLA class-I and inhibitory KIR genotypes in Gabonese patients infected by Chikungunya or Dengue type-2 viruses. PG - e108798 LID - 10.1371/journal.pone.0108798 [doi] LID - e108798 AB - BACKGROUND: Natural killer (NK) cells provide defense in the early stages of the immune response against viral infections. Killer cell immunoglobulin-like receptors (KIR) expressed on the surface of NK cells play an important role in regulating NK cell response through recognition of human leukocyte antigen (HLA) class I molecules on target cells. Previous studies have shown that specific KIR/ligand combinations are associated with the outcome of several viral infectious diseases. METHODS: We investigated the impact of inhibitory and activating KIR and their HLA-class I ligand genotype on the susceptibility to Chikungunya virus (CHIKV) and Dengue virus (DENV2) infections. From April to July 2010 in Gabon, a large outbreak of CHIKV and DENV2 concomitantly occurred in two provinces of Gabon (Ogooue-Lolo and Haut-Ogooue). We performed the genotypic analysis of KIR in the combination with their cognate HLA-class I ligands in 73 CHIKV and 55 DENV2 adult cases, compared with 54 healthy individuals. RESULTS: We found in CHIV-infected patients that KIR2DL1 and KIR2DS5 are significantly increased and decreased respectively, as compared to DENV2+ patients and healthy donors. The combination of KIR2DL1 and its cognate HLA-C2 ligand was significantly associated with the susceptibility to CHIKV infection. In contrast, no other inhibitory KIR-HLA pairs showed an association with the two mosquito-borne arboviruses. CONCLUSION: These observations are strongly suggestive that the NK cell repertoire shaped by the KIR2DL1:HLA-C2 interaction facilitate specific infection by CHIKV. FAU - Petitdemange, Caroline AU - Petitdemange C AD - Sorbonne Universites, UPMC, Univ Paris 06, CR7, CIMI-Paris, Paris, France; INSERM, U1135, CIMI-Paris, Paris, France; Centre International de Recherches Medicales de Franceville, Unite des maladies Emergentes, Franceville, Gabon. FAU - Wauquier, Nadia AU - Wauquier N AD - Sorbonne Universites, UPMC, Univ Paris 06, CR7, CIMI-Paris, Paris, France; Metabiota Inc., San Francisco, California, United States of America. FAU - Jacquet, Jean-Michel AU - Jacquet JM AD - AP-HP Hopital Pitie-Salpetriere, Departement d'Immunologie, Paris, France. FAU - Theodorou, Ioannis AU - Theodorou I AD - Sorbonne Universites, UPMC, Univ Paris 06, CR7, CIMI-Paris, Paris, France; INSERM, U1135, CIMI-Paris, Paris, France; AP-HP Hopital Pitie-Salpetriere, Departement d'Immunologie, Paris, France. FAU - Leroy, Eric AU - Leroy E AD - Centre International de Recherches Medicales de Franceville, Unite des maladies Emergentes, Franceville, Gabon; IRD, Maladies Infectieuses et Vecteurs: Ecologie, Genetique, Evolution et Controle, Montpellier, France. FAU - Vieillard, Vincent AU - Vieillard V AD - Sorbonne Universites, UPMC, Univ Paris 06, CR7, CIMI-Paris, Paris, France; INSERM, U1135, CIMI-Paris, Paris, France; CNRS, ERL8255, CIMI-Paris, Paris, France. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140929 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Ligands) RN - 0 (Receptors, KIR) SB - IM MH - Adult MH - Case-Control Studies MH - Chikungunya Fever/*immunology/virology MH - Chikungunya virus/*immunology MH - Dengue/genetics/*immunology/virology MH - Dengue Virus/*immunology MH - Female MH - Gabon MH - Gene Frequency/genetics MH - Genetic Association Studies MH - *Genetic Predisposition to Disease MH - Genetic Variation MH - Histocompatibility Antigens Class I/*genetics MH - Humans MH - Ligands MH - Male MH - Receptors, KIR/*genetics PMC - PMC4181859 COIS- Competing Interests: Nadia Wauquier is consultant at Metabiota Inc. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials. The remaining authors declare no conflicts of interest. All authors have contributed to, seen, and approved the final, revised version of the manuscript. EDAT- 2014/09/30 06:00 MHDA- 2015/09/29 06:00 PMCR- 2014/09/29 CRDT- 2014/09/30 06:00 PHST- 2014/03/13 00:00 [received] PHST- 2014/09/02 00:00 [accepted] PHST- 2014/09/30 06:00 [entrez] PHST- 2014/09/30 06:00 [pubmed] PHST- 2015/09/29 06:00 [medline] PHST- 2014/09/29 00:00 [pmc-release] AID - PONE-D-14-10802 [pii] AID - 10.1371/journal.pone.0108798 [doi] PST - epublish SO - PLoS One. 2014 Sep 29;9(9):e108798. doi: 10.1371/journal.pone.0108798. eCollection 2014.