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González-Quezada B, Sánchez-Fernández M, Munguía-Saldaña A, Valencia-Macedo M, Flores-Aguilar H, Bonilla-Galán E, Rodríguez-Gómez A, Díaz-Rivera A, Gorodezky C. Allele diversity of the killer cell immunoglobulin-like receptors KIR3DL1/S1 and the combination with their HLA ligands in Mexican Mestizos from Mexico City. Hum Immunol 2018; 79:834-838. [DOI: 10.1016/j.humimm.2018.10.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 09/04/2018] [Accepted: 10/17/2018] [Indexed: 01/02/2023]
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2
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Misra MK, Augusto DG, Martin GM, Nemat-Gorgani N, Sauter J, Hofmann JA, Traherne JA, González-Quezada B, Gorodezky C, Bultitude WP, Marin W, Vierra-Green C, Anderson KM, Balas A, Caro-Oleas JL, Cisneros E, Colucci F, Dandekar R, Elfishawi SM, Fernández-Viña MA, Fouda M, González-Fernández R, Große A, Herrero-Mata MJ, Hollenbach SQ, Marsh SGE, Mentzer A, Middleton D, Moffett A, Moreno-Hidalgo MA, Mossallam GI, Nakimuli A, Oksenberg JR, Oppenheimer SJ, Parham P, Petzl-Erler ML, Planelles D, Sánchez-García F, Sánchez-Gordo F, Schmidt AH, Trowsdale J, Vargas LB, Vicario JL, Vilches C, Norman PJ, Hollenbach JA. Report from the Killer-cell Immunoglobulin-like Receptors (KIR) component of the 17th International HLA and Immunogenetics Workshop. Hum Immunol 2018; 79:825-833. [PMID: 30321631 DOI: 10.1016/j.humimm.2018.10.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/07/2018] [Accepted: 10/08/2018] [Indexed: 12/16/2022]
Abstract
The goals of the KIR component of the 17th International HLA and Immunogenetics Workshop (IHIW) were to encourage and educate researchers to begin analyzing KIR at allelic resolution, and to survey the nature and extent of KIR allelic diversity across human populations. To represent worldwide diversity, we analyzed 1269 individuals from ten populations, focusing on the most polymorphic KIR genes, which express receptors having three immunoglobulin (Ig)-like domains (KIR3DL1/S1, KIR3DL2 and KIR3DL3). We identified 13 novel alleles of KIR3DL1/S1, 13 of KIR3DL2 and 18 of KIR3DL3. Previously identified alleles, corresponding to 33 alleles of KIR3DL1/S1, 38 of KIR3DL2, and 43 of KIR3DL3, represented over 90% of the observed allele frequencies for these genes. In total we observed 37 KIR3DL1/S1 allotypes, 40 for KIR3DL2 and 44 for KIR3DL3. As KIR allotype diversity can affect NK cell function, this demonstrates potential for high functional diversity worldwide. Allelic variation further diversifies KIR haplotypes. We determined KIR3DL3 ∼ KIR3DL1/S1 ∼ KIR3DL2 haplotypes from five of the studied populations, and observed multiple population-specific haplotypes in each. This included 234 distinct haplotypes in European Americans, 191 in Ugandans, 35 in Papuans, 95 in Egyptians and 86 in Spanish populations. For another 35 populations, encompassing 642,105 individuals we focused on KIR3DL2 and identified another 375 novel alleles, with approximately half of them observed in more than one individual. The KIR allelic level data gathered from this project represents the most comprehensive summary of global KIR allelic diversity to date, and continued analysis will improve understanding of KIR allelic polymorphism in global populations. Further, the wealth of new data gathered in the course of this workshop component highlights the value of collaborative, community-based efforts in immunogenetics research, exemplified by the IHIW.
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Affiliation(s)
- Maneesh K Misra
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA
| | - Danillo G Augusto
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA; Department of Genetics, Universidade Federal do Paraná, Curitiba, Brazil
| | - Gonzalo Montero Martin
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94304, USA
| | - Neda Nemat-Gorgani
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | | | | | | | - Betsy González-Quezada
- Department of Immunology and Immunogenetics, InDRE, Secretary of Health, Francisco P. Miranda #177, Colonia Lomas de Plateros, Del. Álvaro Obregón, CP 01480, Mexico City, Mexico; Fundación Comparte Vida, A.C. Galileo #92, Col. Polanco, Del. Miguel Hidalgo, CP 11550 Mexico City, Mexico
| | - Clara Gorodezky
- Department of Immunology and Immunogenetics, InDRE, Secretary of Health, Francisco P. Miranda #177, Colonia Lomas de Plateros, Del. Álvaro Obregón, CP 01480, Mexico City, Mexico; Fundación Comparte Vida, A.C. Galileo #92, Col. Polanco, Del. Miguel Hidalgo, CP 11550 Mexico City, Mexico
| | - Will P Bultitude
- Anthony Nolan Research Institute and UCL Cancer Institute, Royal Free Campus, Pond Street, London NW3 2QG, UK
| | - Wesley Marin
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA
| | - Cynthia Vierra-Green
- Center for International Blood and Marrow Transplant Research, Minneapolis, MN, USA
| | - Kirsten M Anderson
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA
| | - Antonio Balas
- Histocompatibility, Centro de Transfusión de la Comunidad de Madrid, Madrid, Spain
| | - Jose L Caro-Oleas
- Histocompatibility and Immunogenetics, Banc de Sang i Teixits, Barcelona, Spain
| | - Elisa Cisneros
- Immunogenetics and Histocompatibility, Instituto de Investigación Sanitaria Puerta de Hierro, Madrid, Spain
| | - Francesco Colucci
- Department of Obstetrics and Gynaecology, National Institute for Health Research Cambridge Biomedical Research Centre, University of Cambridge School of Clinical Medicine, Cambridge, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | - Ravi Dandekar
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA
| | | | | | - Merhan Fouda
- National Cancer Institute, Cairo University, Cairo, Egypt
| | | | | | | | | | - Steven G E Marsh
- Anthony Nolan Research Institute and UCL Cancer Institute, Royal Free Campus, Pond Street, London NW3 2QG, UK
| | - Alex Mentzer
- Wellcome Trust Centre for Human Genetics, and Jenner Institute, University of Oxford, Oxford, UK
| | | | - Ashley Moffett
- Department of Pathology, University of Cambridge, Cambridge, UK; Centre for Trophoblast Research, Cambridge, UK
| | | | | | - Annettee Nakimuli
- Department of Obstetrics and Gynecology, School of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Jorge R Oksenberg
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA
| | | | - Peter Parham
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | | | - Dolores Planelles
- Histocompatibility, Centro de Transfusión de la Comunidad Valenciana, Valencia, Spain
| | | | | | | | - John Trowsdale
- Department of Pathology, University of Cambridge, Cambridge, UK
| | - Luciana B Vargas
- Department of Genetics, Universidade Federal do Paraná, Curitiba, Brazil
| | - Jose L Vicario
- Histocompatibility, Centro de Transfusión de la Comunidad de Madrid, Madrid, Spain
| | - Carlos Vilches
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA
| | - Paul J Norman
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA; Division of Biomedical Informatics and Personalized Medicine, and Department of Immunology, University of Colorado, Denver, CO 80045, United States
| | - Jill A Hollenbach
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA.
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Genotype B of Killer Cell Immunoglobulin-Like Receptor is Related with Gastric Cancer Lesions. Sci Rep 2018; 8:6104. [PMID: 29666399 PMCID: PMC5904182 DOI: 10.1038/s41598-018-24464-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 03/29/2018] [Indexed: 02/06/2023] Open
Abstract
NK cells are important in innate immunity for their capacity to kill infected or cancer cells. The killer cell immunoglobulin-like receptors (KIR) are a family of polymorphic genes with inhibitory and activating functions. The main driving force for gastric cancer (GC) development is a chronic response, which causes an increase of NK cells in the gastric mucosa. The aim of this work was to study polymorphisms in KIR genes in patients with either GC or non-atrophic gastritis (NAG). We studied 242 patients (130 with NAG and 112 with GC) and contrasted with 146 asymptomatic individuals. We analyzed diversity in the content and localization of KIR genes in the different clinical groups studied. Four activating and one inhibitory genes were associated with GC: 2DS1 (OR 3.41), 2DS3 (OR 4.66), 2DS5 (OR 2.25), 3DS1 (OR 3.35) and 2DL5 (OR 3.6). The following were also found as risk factors for GC: Bx genotype (OR 4.2), Bx-Bx centromere-telomere (OR 2.55), cA01|cB03 (OR 36.39) and tB01|tB01 (OR 7.55) gene content and three B motifs (OR 10.9). Polymorphisms in KIR genes were associated with GC and suggest that mutated NK cells may contribute to GC development by increasing gastric mucosa inflammation, leading to constant tissue damage.
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4
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Horvath S, Gurven M, Levine ME, Trumble BC, Kaplan H, Allayee H, Ritz BR, Chen B, Lu AT, Rickabaugh TM, Jamieson BD, Sun D, Li S, Chen W, Quintana-Murci L, Fagny M, Kobor MS, Tsao PS, Reiner AP, Edlefsen KL, Absher D, Assimes TL. An epigenetic clock analysis of race/ethnicity, sex, and coronary heart disease. Genome Biol 2016; 17:171. [PMID: 27511193 PMCID: PMC4980791 DOI: 10.1186/s13059-016-1030-0] [Citation(s) in RCA: 514] [Impact Index Per Article: 57.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 07/18/2016] [Indexed: 01/07/2023] Open
Abstract
Background Epigenetic biomarkers of aging (the “epigenetic clock”) have the potential to address puzzling findings surrounding mortality rates and incidence of cardio-metabolic disease such as: (1) women consistently exhibiting lower mortality than men despite having higher levels of morbidity; (2) racial/ethnic groups having different mortality rates even after adjusting for socioeconomic differences; (3) the black/white mortality cross-over effect in late adulthood; and (4) Hispanics in the United States having a longer life expectancy than Caucasians despite having a higher burden of traditional cardio-metabolic risk factors. Results We analyzed blood, saliva, and brain samples from seven different racial/ethnic groups. We assessed the intrinsic epigenetic age acceleration of blood (independent of blood cell counts) and the extrinsic epigenetic aging rates of blood (dependent on blood cell counts and tracks the age of the immune system). In blood, Hispanics and Tsimane Amerindians have lower intrinsic but higher extrinsic epigenetic aging rates than Caucasians. African-Americans have lower extrinsic epigenetic aging rates than Caucasians and Hispanics but no differences were found for the intrinsic measure. Men have higher epigenetic aging rates than women in blood, saliva, and brain tissue. Conclusions Epigenetic aging rates are significantly associated with sex, race/ethnicity, and to a lesser extent with CHD risk factors, but not with incident CHD outcomes. These results may help elucidate lower than expected mortality rates observed in Hispanics, older African-Americans, and women. Electronic supplementary material The online version of this article (doi:10.1186/s13059-016-1030-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Steve Horvath
- Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA. .,Biostatistics, School of Public Health, University of California Los Angeles, Los Angeles, CA, 90095, USA.
| | - Michael Gurven
- Department of Anthropology, University of California Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Morgan E Levine
- Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Benjamin C Trumble
- Department of Anthropology, University of California Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Hillard Kaplan
- Department of Anthropology, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Hooman Allayee
- Department of Preventive Medicine and Institute for Genetic Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90089, USA
| | - Beate R Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Brian Chen
- Longitudinal Studies Section, Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Ake T Lu
- Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Tammy M Rickabaugh
- Department of Medicine, Division of Hematology/Oncology, AIDS Institute, University of California Los Angeles, Los Angeles, CA, USA
| | - Beth D Jamieson
- Department of Medicine, Division of Hematology/Oncology, AIDS Institute, University of California Los Angeles, Los Angeles, CA, USA
| | - Dianjianyi Sun
- Department of Epidemiology, Tulane University, New Orleans, LA, 70112, USA
| | - Shengxu Li
- Department of Epidemiology, Tulane University, New Orleans, LA, 70112, USA
| | - Wei Chen
- Department of Epidemiology, Tulane University, New Orleans, LA, 70112, USA
| | - Lluis Quintana-Murci
- Unit of Human Evolutionary Genetics, Centre National de la Recherche Scientifique, URA3012, URA3012 Institut Pasteur, Paris, 75015, France
| | - Maud Fagny
- Department of Biostatistics, Harvard TH Chan School of Public Health and Department of Computational Biology and Biostatistics, Dana-Farber Cancer Institute, Boston, MA, 02115, USA
| | - Michael S Kobor
- Centre for Molecular Medicine and Therapeutics, Child and Family Research Institute and Department of Medical Genetics, University of British Columbia, Vancouver, BC, V5Z 4H4, Canada
| | - Philip S Tsao
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA.,VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - Alexander P Reiner
- Department of Epidemiology, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA, 98109, USA
| | - Kerstin L Edlefsen
- Department of Laboratory Medicine, University of Washington, Seattle, WA, 98195, USA
| | - Devin Absher
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, 35806, USA
| | - Themistocles L Assimes
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
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Mendoza-Carrera F, Castro-Martínez XH, Leal C, Portilla-de Buen E, Sánchez-Corona J, Flores-Martínez SE, García-Zapién A, Ramírez-López G, Gómez-Espinel I, Báez-Duarte BG, Zamora-Ginez I, Velarde-Félix JS, Guillermo Sánchez-Zazueta J. Analysis of cytokine gene polymorphisms in Mestizo and native populations from Mexico. Am J Hum Biol 2016; 29. [DOI: 10.1002/ajhb.22900] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 06/28/2016] [Accepted: 07/11/2016] [Indexed: 12/28/2022] Open
Affiliation(s)
- Francisco Mendoza-Carrera
- Molecular Medicine Division, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social (CIBO-IMSS); Guadalajara Jal. México
| | - Xochitl Helga Castro-Martínez
- Molecular Medicine Division, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social (CIBO-IMSS); Guadalajara Jal. México
| | - Caridad Leal
- Surgical Research Division; CIBO-IMSS; Guadalajara Jal. México
| | | | - José Sánchez-Corona
- Molecular Medicine Division, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social (CIBO-IMSS); Guadalajara Jal. México
| | - Silvia Esperanza Flores-Martínez
- Molecular Medicine Division, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social (CIBO-IMSS); Guadalajara Jal. México
| | - Alejandra García-Zapién
- Molecular Medicine Division, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social (CIBO-IMSS); Guadalajara Jal. México
| | - Guadalupe Ramírez-López
- Unidad de Investigación Epidemiológica y en Servicios de Salud del Adolescente, IMSS; Tonalá Jal. México
| | - Irene Gómez-Espinel
- Departamento de Patología Clínica; Facultad de Medicina, Universidad Autónoma de Nuevo León; Monterrey N.L México
| | | | - Irma Zamora-Ginez
- Facultad de Medicina, Benemérita Universidad Autónoma de Puebla; Puebla Pue México
| | - Jesús Salvador Velarde-Félix
- Cuerpo Académico Inmunogenética y Evolución UAS-CA-265, Unidad Académica Escuela de Biología, Universidad Autónoma de Sinaloa; Culiacán Sin México
| | - Jorge Guillermo Sánchez-Zazueta
- Cuerpo Académico Inmunogenética y Evolución UAS-CA-265, Unidad Académica Escuela de Biología, Universidad Autónoma de Sinaloa; Culiacán Sin México
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6
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Alvarado-Hernández DL, Benítez-Sánchez A, Rodríguez-Cuevas JS, Rosales-Saavedra T, Guerra-Palomares SE, Comas-García A, Noyola DE, García-Sepúlveda CA. Killer-cell immunoglobulin-like receptors and cytomegalovirus reactivation during late pregnancy. Int J Immunogenet 2016; 43:189-99. [PMID: 27277336 DOI: 10.1111/iji.12271] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 02/29/2016] [Accepted: 05/05/2016] [Indexed: 11/28/2022]
Abstract
Human cytomegalovirus (CMV) represents an important public health concern as it is associated with severe morbidity and mortality in transplant recipients, HIV-infected individuals and pregnant women given the risk of congenital infection. Congenital CMV is a leading cause of neurological sequelae, developmental delay and birth defects worldwide. Cytomegalovirus can be transmitted to the foetus following maternal infection or reactivation. NK cells expressing killer-cell immunoglobulin-like receptors (KIR) are part of the innate immune system and the first line of defence against viral incursions. Previous reports have shown that KIR genes are associated with CMV infections in the post-transplant setting. In this study, we set out to determine whether a protective effect of KIR genes over CMV infection is seen in Mexican pregnant women. Cytomegalovirus infection was assessed through nucleic acid testing in 200 pregnant women and 600 healthy blood donors comprising the Mexican mestizo reference population. Killer-cell immunoglobulin-like receptors and HLA-C genotypes were obtained from 200 pregnant women and 300 reference samples using a comprehensive PCR-SSP approach. We observed statistically lower carrier frequencies of cB03|tA01 gene-content haplotype, of cB03 haplotype motif, of the KIR2DL5 + 2DS3/2DS5 gene pair and of KIR2DL5 amongst CMV-positive pregnant women in comparison with those CMV negative. None of these were associated with CMV status in the reference population. Logistic regression analysis revealed that the most important factor determining CMV status during third-trimester pregnancies was the KIR2DL5 + 2DS3/2DS5 gene pair (OR 0.376 (95%CI 0.174, 0.811, P = 0.013). Our results indicate that CMV-protective KIR gene associations described in Caucasoid populations are also present in the genetically distinct Mexican mestizo population. Our results suggest that certain KIR gene combinations provide protection against CMV infections occurring during late-term pregnancies, a finding of utmost epidemiological importance given its implication with congenital CMV infections.
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Affiliation(s)
- D L Alvarado-Hernández
- Laboratorio de Genómica Viral y Humana, Facultad de Medicina UASLP, San Luis Potosí, México
| | - A Benítez-Sánchez
- División de Gineco-Obstetricia, Hospital Central 'Dr. Ignacio Morones Prieto', San Luis Potosí, México
| | - J S Rodríguez-Cuevas
- División de Gineco-Obstetricia, Hospital Central 'Dr. Ignacio Morones Prieto', San Luis Potosí, México
| | - T Rosales-Saavedra
- Laboratorio de Genómica Viral y Humana, Facultad de Medicina UASLP, San Luis Potosí, México
| | - S E Guerra-Palomares
- Laboratorio de Genómica Viral y Humana, Facultad de Medicina UASLP, San Luis Potosí, México
| | - A Comas-García
- Departamento de Microbiología, Facultad de Medicina UASLP, San Luis Potosí, México
| | - D E Noyola
- Departamento de Microbiología, Facultad de Medicina UASLP, San Luis Potosí, México
| | - C A García-Sepúlveda
- Laboratorio de Genómica Viral y Humana, Facultad de Medicina UASLP, San Luis Potosí, México
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7
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Garrido-Rodríguez D, Ávila-Ríos S, García-Morales C, Valenzuela-Ponce H, Ormsby C, Reyes-Gopar H, Fernandez-Lopez JC, Reyes-Terán G. Killer cell immunoglobulin-like receptor and human leukocyte antigen gene profiles in a cohort of HIV-infected Mexican Mestizos. Immunogenetics 2016; 68:703-17. [PMID: 27240860 DOI: 10.1007/s00251-016-0920-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 05/21/2016] [Indexed: 01/23/2023]
Abstract
Killer cell immunoglobulin-like receptors (KIRs) represent the most polymorphic genes responsible for natural killer cell function, while human leukocyte antigen (HLA) class I molecules define and restrict cytotoxic T lymphocyte responses. Specific KIR, HLA, or KIR-HLA combinations have been implicated in the outcome of human immunodeficiency virus (HIV) disease. The remarkable polymorphism of KIR and HLA genes warrants descriptive gene frequency studies in different populations, as well as their impact on HIV disease progression in different immunogenetic contexts. We report KIR and HLA class I gene profiles of 511 unrelated HIV-infected Mexican Mestizo individuals from 18 states for whom genetic ancestry proportions were assessed. KIR and HLA gene profiles were compared between individuals from the north and central-south regions of the country and between individuals with higher European (EUR) or Amerindian (AMI) genetic ancestry component. A total of 65 KIR genotypes were observed, 11 harboring novel KIR gene combinations. A total of 164 HLA alleles were observed: 43 HLA-A, 87 HLA-B, and 34 HLA-C. Differences in the distribution of 12 HLA alleles were observed between individuals with higher AMI or EUR ancestry components (p < 0.05, q < 0.2). After correcting for genetic ancestry, only individual HLA alleles were associated with HIV disease progression, including a novel association with A*02:06, an Amerindian HLA allele associated with lower CD4+ T cell counts. No KIR effects were significant. Our results highlight the advantages of considering a detailed genetic stratification within populations when studying genetic profiles that could be implicated in disease-association studies.
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Affiliation(s)
- Daniela Garrido-Rodríguez
- National Institute of Respiratory Diseases, Centre for Research in Infectious Diseases, Calzada de Tlalpan 4502, Col. Sección XVI, 14080, Mexico City, Mexico
| | - Santiago Ávila-Ríos
- National Institute of Respiratory Diseases, Centre for Research in Infectious Diseases, Calzada de Tlalpan 4502, Col. Sección XVI, 14080, Mexico City, Mexico
| | - Claudia García-Morales
- National Institute of Respiratory Diseases, Centre for Research in Infectious Diseases, Calzada de Tlalpan 4502, Col. Sección XVI, 14080, Mexico City, Mexico
| | - Humberto Valenzuela-Ponce
- National Institute of Respiratory Diseases, Centre for Research in Infectious Diseases, Calzada de Tlalpan 4502, Col. Sección XVI, 14080, Mexico City, Mexico
| | - Christopher Ormsby
- National Institute of Respiratory Diseases, Centre for Research in Infectious Diseases, Calzada de Tlalpan 4502, Col. Sección XVI, 14080, Mexico City, Mexico
| | - Helena Reyes-Gopar
- National Institute of Respiratory Diseases, Centre for Research in Infectious Diseases, Calzada de Tlalpan 4502, Col. Sección XVI, 14080, Mexico City, Mexico
| | | | - Gustavo Reyes-Terán
- National Institute of Respiratory Diseases, Centre for Research in Infectious Diseases, Calzada de Tlalpan 4502, Col. Sección XVI, 14080, Mexico City, Mexico.
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8
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Association of KIR3DL1/S1 and HLA-Bw4 with CD4 T cell counts in HIV-infected Mexican mestizos. Immunogenetics 2015; 67:413-24. [PMID: 26033692 DOI: 10.1007/s00251-015-0848-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 05/22/2015] [Indexed: 12/16/2022]
Abstract
Certain genotypic combinations of killer-cell immunoglobulin-like receptors (KIR) and human leukocyte antigens (HLA) have been associated with favourable outcomes after exposure to human immunodeficiency virus in Caucasoid and African populations. Human immunodeficiency virus (HIV) infection is characterized by a rapid exhaustion of CD4 cells, which results in impaired cellular immunity. During this early phase of infection, it is thought that the natural killer (NK) cells represent the main effector arm of the host immune response to HIV. This study investigates whether KIR and HLA factors are associated to CD4 T cell numbers after HIV infection in Mexican mestizos as assessed at the time of initial medical evaluation and subsequent clinical follow-up. KIR and HLA-B gene carrier frequency differences were compared between groups of patients stratified by CD4 T cell numbers as assessed during their first medical evaluation (a point in time at which all patients were anti-retroviral therapy naïve). In addition, the influence that these genetic factors have on averaged historical CD4 cell counts in patients subjected to follow-up (mostly therapy-experienced) was also evaluated. Our results suggest a protective role for the HLA-Bw4 and KIR3D + Bw4 combination in both therapy-naïve and therapy-experienced patients. This report furthers our understanding on the way that immune genes modulate HIV disease progression in less-studied human populations such as the Mexican mestizos with a special focus on CD4 T cell number and behaviour.
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9
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He Y, Tao S, Ying Y, He J, Zhu F, Lv H. Investigation of killer cell immunoglobulin-like receptors KIR2DL2 and KIR2DL3 diversity and identification of ten novel KIR2DL3 alleles in the Chinese Han population. Scand J Immunol 2015; 81:265-71. [PMID: 25651940 DOI: 10.1111/sji.12277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 01/22/2015] [Indexed: 11/30/2022]
Abstract
KIR2DL2 and KIR2DL3 are important inhibitory receptors that recognize a subset of HLA-C allelic products carrying Ser77 and Asn80. In this study, we have determined KIR2DL2 and KIR2DL3 diversity in the Chinese Han population by a PCR sequence-based typing. Based on sequencing, the coding regions of 166 Chinese Han individuals, seven new polymorphic sites (238G>A, 405G>A, 476A>G, 550G>A, 608G>A, 789T>C, 947T>C) were found. KIR2DL2*00301, *00101, KIR2DL3*00101,*00201,*013, *015 and ten new KIR2DL3 variants (KIR2DL3*00105, 00106, 00107, 00108, 019, 020, 021, 022, 023 and 024) were identified, of which KIR2DL3*00101 was the most frequent allele. Compared with the sequences of KIR2DL3*00101, all sequences of 2DL3*00105, 2DL3*00106, 2DL3*00107 and 2DL3*00108 had one nucleotide substitution(789T>C, 261C>T, 489G>A and 405G>A),but none resulted in amino acid change. An A>G substitution was observed in nucleotide position 476 in 2DL3*019, 608 G>A in 2DL3*020, 824T>C in 2DL3*021 and 238 G>A in 2DL3*023. In addition, 2DL3*022 probably arose from 2DL3*00201 with a nucleotide substitution G>A at 550. There were more HLA-C1 positive individuals than HLA-C2. In conclusion, the data of allelic polymorphism for KIR2DL2 and KIR2DL3 were obtained in the Chinese Han population and ten novel KIR2DL3 alleles were identified.
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Affiliation(s)
- Y He
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China ; Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China
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10
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Ashouri E, Dabbaghmanesh MH, Ranjbar Omrani G. Presence of more activating KIR genes is associated with Hashimoto's thyroiditis. Endocrine 2014; 46:519-25. [PMID: 24174177 DOI: 10.1007/s12020-013-0080-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 10/05/2013] [Indexed: 12/13/2022]
Abstract
Killer cell immunoglobulin-like receptors (KIR) regulate the effector function of natural killer (NK) cells and the subset of T cells with memory phenotype. The number and type of genes that encode KIR receptors substantially varied between individuals and between populations. Specific KIR receptors are known to be associated with certain diseases. The present study was undertaken to investigate if any specific KIR gene(s) is associated with the susceptibility to Hashimoto's thyroiditis (HT), an inflammatory disease characterized by lymphocytic infiltration of the thyroid gland and the presence of autoantibodies directed against thyroglobulin and/or thyroid peroxidase. DNA from 118 patients with HT and 120 healthy controls was characterized for the presence and absence of 11 variable KIR genes using a gene-specific PCR typing system. Although no significant difference in the frequency of individual KIR genes between patients and controls was detected, more patients carry the six activating KIR genes compared with the control group (11.8 vs. 4.1 %, p = 0.032, OR = 3.09, 95 % CI 1.07-8.89). The data suggest that augmented signals from multiple activating KIR receptors might exacerbate the activation of NK cells and T cell subsets against self-antigens, thus contributing to the pathogenesis of HT.
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Affiliation(s)
- Elham Ashouri
- Endocrinology and Metabolism Research Center, Namazi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran,
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11
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Augusto DG, Zehnder-Alves L, Pincerati MR, Martin MP, Carrington M, Petzl-Erler ML. Diversity of the KIR gene cluster in an urban Brazilian population. Immunogenetics 2012; 64:143-52. [PMID: 21850526 PMCID: PMC3770263 DOI: 10.1007/s00251-011-0565-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2009] [Accepted: 07/30/2011] [Indexed: 10/17/2022]
Abstract
The activity of natural killer cells depends on the balance between activating and inhibitory signals coming from their receptors. Among these are the killer cell immunoglobulin-like receptors (KIR) that recognize specific HLA class I allotypes. Here we characterized KIR genetic diversity and their HLA ligands in the population of Curitiba, Paraná State (n = 164), and compared it with other worldwide populations. The distribution of 2DL4 alleles was also analyzed. The Curitiba population did not differ significantly from European and Euro-descendant populations, but as an admixed population showed higher genetic diversity. We found 27 KIR profiles, many of them uncommon in European populations, in agreement with the elevated historically recent gene flow in the study population. The frequencies of KIR genes and their respective HLA ligands were distributed independently and none of the analyzed individuals lacked functional KIR-HLA ligand combinations. KIR gene frequencies of 33 worldwide populations were consistent with geographic and ethnic distribution, in agreement with demography being the major factor shaping the observed gene content diversity of the KIR locus.
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Affiliation(s)
- D G Augusto
- Laboratório de Genética Molecular Humana, Departamento de Genética, Universidade Federal do Paraná, Caixa Postal 19071, Curitiba 81531-980, Brazil
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12
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KIR gene diversity in Mexican mestizos of San Luis Potosí. Immunogenetics 2011; 63:561-75. [DOI: 10.1007/s00251-011-0540-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 05/19/2011] [Indexed: 10/18/2022]
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13
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Sánchez-Rodríguez EN, Nava-Salazar S, Mendoza-Rodríguez CA, Moran C, Romero-Arauz JF, Ortega E, Granados J, Cervantes-Peredo A, Cerbón M. Persistence of decidual NK cells and KIR genotypes in healthy pregnant and preeclamptic women: a case-control study in the third trimester of gestation. Reprod Biol Endocrinol 2011; 9:8. [PMID: 21247496 PMCID: PMC3034672 DOI: 10.1186/1477-7827-9-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Accepted: 01/19/2011] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Natural Killer (NK) cells are the most abundant lymphocytes in the decidua during early gestation. The interactions of NK cells with the extravillous cytotrophoblast have been associated with a normal spiral artery remodeling process, an essential event for a successful pregnancy. Recent data indicate that alterations in the amount of decidual NK (dNK) cells contribute to the development of preeclampsia (PE). Moreover, genetic studies suggest that Killer Immunoglobulin-like Receptors (KIR) expressed in dNK cells influence the susceptibility to PE. Although dNK cells have been well characterized during early pregnancy, they have been scarcely studied in the third trimester of gestation. The aim of this work was to characterize dNK cells at the last trimester of gestation and to analyze the KIR genotype of healthy and PE women. METHODS Decidual samples were obtained during Caesarean section from control (n = 10) and PE (n = 9) women. Flow cytometric analysis of CD3, CD56, CD16 and CD9 was used to characterize and quantify dNK cells in both groups. Cell surface markers from decidual leukocytes were compared with PBMC from healthy donors.KIR genotyping was performed in genomic DNA (control, n = 86; PE, n = 90) using PCR-SSP. RESULTS The results indicate that dNK cells persist throughout pregnancy. They represented 20% of total leukocytes in control and PE groups, and they expressed the same cell surface markers (CD3-, CD56+, CD16- and CD9+) as dNK in the first trimester of gestation. There were no significant differences in the percentage of dNK cells between control and PE groups. The analysis of KIR gene frequencies and genotypes was not statistically different between control and PE groups. The ratio of activating to inhibitory genes indicated that the overall inhibitory balance (0.2-0.5) was more frequent in the PE group (control, 31.3% vs PE, 45.5%), and the activating balance (0.6-1.1) was more frequent in the control group (control, 68.6% vs PE, 54.4%). However this difference was not significant. CONCLUSION We demonstrated the persistence of dNK cells in PE and control women at the third trimester of pregnancy; these dNK cells had a similar phenotype to those found during early pregnancy. The predominance of a KIR inhibitory balance in the PE group could be associated to the physiopathology of PE.
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Affiliation(s)
- Elly N Sánchez-Rodríguez
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México. Ciudad Universitaria, Coyoacán 04510, México, D.F., México
| | - Sonia Nava-Salazar
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México. Ciudad Universitaria, Coyoacán 04510, México, D.F., México
| | - C Adriana Mendoza-Rodríguez
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México. Ciudad Universitaria, Coyoacán 04510, México, D.F., México
| | - Carlos Moran
- Servicio de Complicaciones Hipertensivas, UMAE de Ginecología y Obstetricia "Luis Castelazo Ayala", Instituto Mexicano del Seguro Social, México, D.F., México
| | - Juan F Romero-Arauz
- Servicio de Complicaciones Hipertensivas, UMAE de Ginecología y Obstetricia "Luis Castelazo Ayala", Instituto Mexicano del Seguro Social, México, D.F., México
| | - Enrique Ortega
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, UNAM, Mexico, D.F., México
| | - Julio Granados
- Departamento de Transplantes, Instituto Nacional de Ciencias Médicas y de la Nutrición "Salvador Zubirán", México, D.F., México
| | - Alicia Cervantes-Peredo
- Servicio de Genética, Hospital General de México/Facultad de Medicina, UNAM, México, D.F., México
| | - Marco Cerbón
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México. Ciudad Universitaria, Coyoacán 04510, México, D.F., México
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Zhu BF, Wang HD, Shen CM, Deng YJ, Yang G, Wu QJ, Xu P, Qin HX, Fan SL, Huang P, Deng LB, Lucas R, Wang ZY. Killer cell immunoglobulin-like receptor gene diversity in the Tibetan ethnic minority group of China. Hum Immunol 2010; 71:1116-23. [DOI: 10.1016/j.humimm.2010.07.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2010] [Revised: 06/24/2010] [Accepted: 07/12/2010] [Indexed: 11/30/2022]
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Jobim M, Salim PH, Portela P, Wilson TJ, Fraportti J, Baronio D, Gil B, Penna LS, Roesler R, Jobim LF, Schwartsmann G. Killer cell immunoglobulin-like receptor gene diversity in a Caucasian population of Southern Brazil. Int J Immunogenet 2010; 37:83-9. [PMID: 20082646 DOI: 10.1111/j.1744-313x.2009.00894.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- M Jobim
- Department of Immunology, Hospital de Clínicas, Porto Alegre, Brazil.
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Study of killer immunoglobulin-like receptor genes and human leukocyte antigens class I ligands in a Caucasian Brazilian population with Crohn's disease and ulcerative colitis. Hum Immunol 2010; 71:293-7. [DOI: 10.1016/j.humimm.2009.12.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2009] [Revised: 12/02/2009] [Accepted: 12/17/2009] [Indexed: 12/19/2022]
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17
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Jobim M, Jobim LFJ, Salim PH, Cestari TF, Toresan R, Gil BC, Jobim MR, Wilson TJ, Kruger M, Schlottfeldt J, Schwartsmann G. A study of the killer cell immunoglobulin-like receptor gene KIR2DS1 in a Caucasoid Brazilian population with psoriasis vulgaris. ACTA ACUST UNITED AC 2008; 72:392-6. [PMID: 18643961 DOI: 10.1111/j.1399-0039.2008.01096.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Psoriasis is a chronic inflammatory skin disease whose pathogenesis and genetic background remain unclear. Considering that previous studies have suggested an association of psoriasis vulgaris (PV) and killer cell immunoglobulin-like receptors (KIRs), we typed 15 KIR genes and human leukocyte antigen (HLA)-Cw in 79 Brazilian Caucasoid patients with PV and 110 healthy controls by polymerase chain reaction (PCR) using sequence-specific oligonucleotides and sequence-specific primers. We did not observe a relevant increase in the frequency of the activating KIR2DS1 gene in the PV group [KIR2DS1, 46 of 79 cases (58.2%) vs 40 of 110 controls (36.4%)]. However, an association of KIR2DS1 with Cw*0602+ in 26.5% of PV patients was observed, while it was present in only 5.4% of controls. These results suggest that activating KIR2DS1 gene may not confer susceptibility to PV, and an association of KIR2DS1 gene with the HLA-Cw*0602+ was observed in these patients.
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Affiliation(s)
- M Jobim
- Department of Immunology, Hospital de Clínicas, Porto Alegre, Brazil.
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