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Kulmann-Leal B, Ellwanger JH, Arend AC, Jobim LFJ, Jobim M, Michita RT, Callegari-Jacques SM, Pôrto LCDMS, Chies JAB. CCR5Δ32 and HLA allele diversity in bone marrow donors from southern Brazil. Genet Mol Biol 2024; 47:e20230198. [PMID: 39074297 DOI: 10.1590/1678-4685-gmb-2023-0198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 05/13/2024] [Indexed: 07/31/2024] Open
Abstract
Transplantation of stem cells derived from donors with CCR5Δ32 homozygous genotype is a potential strategy to achieve both the control of malignant hematological disease as well as sustained remission of the HIV infection, and researchers in different countries are looking for CCR5Δ32 homozygous donors to replicate such a 'double-target' strategy. We determined the frequency of the CCR5Δ32 variant in a sample of 1,398 bone marrow donors from Rio Grande do Sul State, Brazil. This study also evaluated whether HLA-A, HLA-B and HLA-DRB1 genotypes are homogeneously distributed between CCR5Δ32 carriers and non-carriers in a population characterized by a significant genetic admixture. The CCR5Δ32 allele frequency was 7.4% (CI0.95 6.4-8.4%), and the frequency of the Δ32/Δ32 homozygous genotype was 0.72% (CI0.95 0.34-1.31%). In general, HLA genotypes are homogeneously distributed between CCR5Δ32 carriers and non-carriers. Considering the large number of bone marrow donors in Brazil and the high CCR5Δ32 allele frequency observed in our study, our results clearly indicate the existence of a considerable amount of potential CCR5Δ32 homozygous bone marrow donors in southern Brazil, suggesting that an active search for these donors is not only feasible but an attractive and promising strategy towards effective HIV infection control and treatment.
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Affiliation(s)
- Bruna Kulmann-Leal
- Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de Genética, Laboratório de Imunobiologia e Imunogenética, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de Genética, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
| | - Joel Henrique Ellwanger
- Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de Genética, Laboratório de Imunobiologia e Imunogenética, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de Genética, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
| | - Ana Cristina Arend
- Hospital de Clínicas de Porto Alegre (HCPA), Unidade de Imunologia de Transplantes e Medicina Personalizada, Porto Alegre, RS, Brazil
| | - Luiz Fernando Job Jobim
- Hospital de Clínicas de Porto Alegre (HCPA), Unidade de Imunologia de Transplantes e Medicina Personalizada, Porto Alegre, RS, Brazil
| | - Mariana Jobim
- Hospital de Clínicas de Porto Alegre (HCPA), Unidade de Imunologia de Transplantes e Medicina Personalizada, Porto Alegre, RS, Brazil
| | - Rafael Tomoya Michita
- Baylor College of Medicine, Section of Infectious Diseases, Department of Medicine, Houston, Texas, USA
| | - Sidia Maria Callegari-Jacques
- Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de Genética, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de Estatística, Porto Alegre, RS, Brazil
| | | | - José Artur Bogo Chies
- Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de Genética, Laboratório de Imunobiologia e Imunogenética, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de Genética, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
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2
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Schauren JDS, de Oliveira AH, Consiglio CR, Monticielo OA, Xavier RM, Nunes NS, Ellwanger JH, Chies JAB. CCR5 promoter region polymorphisms in systemic lupus erythematosus. Int J Immunogenet 2024; 51:20-31. [PMID: 37984413 DOI: 10.1111/iji.12646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/26/2023] [Accepted: 11/09/2023] [Indexed: 11/22/2023]
Abstract
This study investigated the impacts of CCR5 promoter region polymorphisms on the development of systemic lupus erythematosus (SLE) by comparing CCR5 genotypes and haplotypes from SLE patients with ethnically matched controls. A total of 382 SLE patients (289 European-derived and 93 African-derived) and 375 controls (243 European-derived and 132 African-derived) were genotyped for the CCR2-64I G > A (rs1799864), CCR5-59353 C > T (rs1799988), CCR5-59356 C > T (rs41469351), CCR5-59402 A > G (rs1800023) and CCR5-59653 C > T (rs1800024) polymorphisms through polymerase chain reaction-restriction fragment length polymorphism and direct sequencing. Previous data from CCR5Δ32 analysis was included in the study to infer the CCR5 haplotypes and as a possible confounding factor in the binary logistic regression. European-derived patients showed a higher frequency of CCR5 wild-type genotype (conversely, a reduced frequency of Δ32 allele) and a reduced frequency of the HHG*2 haplotype compared to controls; both factors significantly affecting disease risk [p = .003 (OR 3.5, 95%CI 1.6-7.5) and 2.0% vs. 7.2% (residual p = 2.9E - 5), respectively]. Additionally, the HHA/HHB, HHC and HHG*2 haplotype frequencies differed between African-derived patients and controls [10% vs. 20.5% (residual p = .003), 29.4% vs. 17.4% (residual p = .003) and 3.9% vs. 0.8% (residual p = .023), respectively]. Considering the clinical manifestations of the disease, the CCR5Δ32 presence was confirmed as a susceptibility factor to class IV nephritis in the African-derived group and when all patients were grouped for comparison [pcorrected = .012 (OR 3.0; 95%CI 3.0-333.3) and pcorrected = .0006 (OR 6.8; 95%CI 1.9-24.8), respectively]. In conclusion, this study indicates that CCR5 promoter polymorphisms are important disease modifiers in SLE. Present data reinforces the CCR5Δ32 polymorphism as a protective factor for the development of the disease in European-derived patients and as a susceptibility factor for class IV nephritis in African-derived patients. Furthermore, we also described a reduced frequency of HHA/HHB and an increased frequency of HHC and HHG*2 haplotypes in African-derived patients, which could modify the CCR5 protein expression in specific cell subsets.
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Affiliation(s)
- Juliana da Silveira Schauren
- Laboratory of Immunobiology and Immunogenetics, Department of Genetics, Postgraduate Program in Genetics and Molecular Biology (PPGBM), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Amanda Henrique de Oliveira
- Laboratory of Immunobiology and Immunogenetics, Department of Genetics, Postgraduate Program in Genetics and Molecular Biology (PPGBM), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Gastroenterology and Hepatology Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Camila Rosat Consiglio
- Laboratory of Immunobiology and Immunogenetics, Department of Genetics, Postgraduate Program in Genetics and Molecular Biology (PPGBM), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Odirlei André Monticielo
- Division of Rheumatology, Department of Internal Medicine, Hospital de Clínicas de Porto Alegre (HCPA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Ricardo Machado Xavier
- Division of Rheumatology, Department of Internal Medicine, Hospital de Clínicas de Porto Alegre (HCPA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Natália Schneider Nunes
- Postgraduate Program in Gastroenterology and Hepatology Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Joel Henrique Ellwanger
- Laboratory of Immunobiology and Immunogenetics, Department of Genetics, Postgraduate Program in Genetics and Molecular Biology (PPGBM), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - José Artur Bogo Chies
- Laboratory of Immunobiology and Immunogenetics, Department of Genetics, Postgraduate Program in Genetics and Molecular Biology (PPGBM), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Gastroenterology and Hepatology Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
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3
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Fam BSDO, Feira MF, Cadore NA, Sbruzzi R, Hünemeier T, Abel L, Zhang Q, Casanova JL, Vianna FSL. Human genetic determinants of COVID-19 in Brazil: challenges and future plans. Genet Mol Biol 2024; 46:e20230128. [PMID: 38226654 DOI: 10.1590/1678-4685-gmb-2023-0128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 11/14/2023] [Indexed: 01/17/2024] Open
Abstract
COVID-19 pandemic represented a worldwide major challenge in different areas, and efforts undertaken by the scientific community led to the understanding of some of the genetic determinants that influence the different COVID-19 outcomes. In this paper, we review the studies about the role of human genetics in COVID-19 severity and how Brazilian studies also contributed to those findings. Rare variants in genes related to Inborn Errors of Immunity (IEI) in the type I interferons pathway, and its phenocopies, have been described as being causative of severe outcomes. IEI and its phenocopies are present in Brazil, not only in COVID-19 patients, but also in autoimmune conditions and severe reactions to yellow fever vaccine. In addition, studies focusing on common variants and GWAS studies encompassing worldwide patients have found several loci associated with COVID-19 severity. A GWAS study including only Brazilian COVID-19 patients identified a new locus 1q32.1 associated with COVID-19 severity. Thus, more comprehensive studies considering the Brazilian genomic diversity should be performed, since they can help to reveal not only what are the genetic determinants that contribute to the different outcomes for COVID-19 in the Brazilian population, but in the understanding of human genetics in different health conditions.
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Affiliation(s)
- Bibiana S de Oliveira Fam
- Hospital de Clínicas de Porto Alegre, Centro de Pesquisa Experimental, Laboratório de Medicina Genômica, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Departamento de Genética, Laboratório de Imunogenética, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
- Instituto Nacional de Genética Médica Populacional (INaGeMP), Porto Alegre, RS, Brazil
| | - Marilea Furtado Feira
- Hospital de Clínicas de Porto Alegre, Centro de Pesquisa Experimental, Laboratório de Medicina Genômica, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Departamento de Genética, Laboratório de Imunogenética, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
- Instituto Nacional de Genética Médica Populacional (INaGeMP), Porto Alegre, RS, Brazil
| | - Nathan Araujo Cadore
- Hospital de Clínicas de Porto Alegre, Centro de Pesquisa Experimental, Laboratório de Medicina Genômica, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Departamento de Genética, Laboratório de Imunogenética, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
- Instituto Nacional de Genética Médica Populacional (INaGeMP), Porto Alegre, RS, Brazil
| | - Renan Sbruzzi
- Hospital de Clínicas de Porto Alegre, Centro de Pesquisa Experimental, Laboratório de Medicina Genômica, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Departamento de Genética, Laboratório de Imunogenética, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
- Instituto Nacional de Genética Médica Populacional (INaGeMP), Porto Alegre, RS, Brazil
| | - Tábita Hünemeier
- Universidade de São Paulo, Instituto de Biociências, Departamento de Genética e Biologia Evolutiva, São Paulo, SP, Brazil
- Institut de Biologia Evolutiva (Consejo Superior de Investigaciones Científicas/Universitat Pompeu Fabra), Barcelona, Spain
| | - Laurent Abel
- The Rockefeller University, Rockefeller Branch, St. Giles Laboratory of Human Genetics of Infectious Diseases, New York, NY, USA
- Laboratory of Human Genetics of Infectious Diseases, Imagine Institute, Paris, France
- University Paris Cité, Imagine Institute, Paris, France
| | - Qian Zhang
- The Rockefeller University, Rockefeller Branch, St. Giles Laboratory of Human Genetics of Infectious Diseases, New York, NY, USA
- Howard Hughes Medical Institute, New York, NY, USA
| | - Jean-Laurent Casanova
- The Rockefeller University, Rockefeller Branch, St. Giles Laboratory of Human Genetics of Infectious Diseases, New York, NY, USA
- Howard Hughes Medical Institute, New York, NY, USA
- Laboratory of Human Genetics of Infectious Diseases, Imagine Institute, Paris, France
- University Paris Cité, Imagine Institute, Paris, France
- Necker Hospital for Sick Children, Department of Pediatrics, Paris, France
| | - Fernanda Sales Luiz Vianna
- Hospital de Clínicas de Porto Alegre, Centro de Pesquisa Experimental, Laboratório de Medicina Genômica, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Departamento de Genética, Laboratório de Imunogenética, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
- Instituto Nacional de Genética Médica Populacional (INaGeMP), Porto Alegre, RS, Brazil
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Garg A, Lim JK. A Pocket Guide to CCR5-Neurotropic Flavivirus Edition. Viruses 2023; 16:28. [PMID: 38257729 PMCID: PMC10820758 DOI: 10.3390/v16010028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/24/2024] Open
Abstract
CCR5 is among the most studied chemokine receptors due to its profound significance in human health and disease. The notion that CCR5 is a functionally redundant receptor was challenged through the demonstration of its unique protective role in the context of West Nile virus in both mice and humans. In the nearly two decades since this initial discovery, numerous studies have investigated the role of CCR5 in the context of other medically important neurotropic flaviviruses, most of which appear to support a broad neuroprotective role for this receptor, although how CCR5 exerts its protective effect has been remarkably varied. In this review, we summarize the mechanisms by which CCR5 controls neurotropic flaviviruses, as well as results from human studies evaluating a genetic link to CCR5, and propose unexplored areas of research that are needed to unveil even more exciting roles for this important receptor.
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Affiliation(s)
| | - Jean K. Lim
- Department of Microbiology, The Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1124, New York, NY 10029, USA;
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Chen G, Calcaterra F, Ma Y, Ping X, Pontarini E, Yang D, Oriolo F, Yu Z, Cancellara A, Mikulak J, Huang Y, Della Bella S, Liu Y, Biesecker LG, Harper RL, Dalgard CL, Boehm M, Mavilio D. Derived myeloid lineage induced pluripotent stem as a platform to study human C-C chemokine receptor type 5Δ32 homozygotes. iScience 2023; 26:108331. [PMID: 38026202 PMCID: PMC10663745 DOI: 10.1016/j.isci.2023.108331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 08/29/2023] [Accepted: 10/22/2023] [Indexed: 12/01/2023] Open
Abstract
The C-C chemokine receptor type 5 (CCR5) expressed on immune cells supports inflammatory responses by directing cells to the inflammation site. CCR5 is also a major coreceptor for macrophage tropic human immunodeficiency viruses (R5-HIV-1) and its variants can confer protection from HIV infection, making it an ideal candidate to target for therapy. We developed a stepwise protocol that differentiates induced pluripotent stem cells (iPSCs) from individuals homozygous for the CCR5Δ32 variant and healthy volunteers into myeloid lineage induced monocytes (iMono) and macrophages (iMac). By characterizing iMono and iMac against their primary counterparts, we demonstrated that CCR5Δ32 homozygous cells are endowed with similar pluripotent potential for self-renewal and differentiation as iPSC lines generated from non-variant individuals while also showing resistance to HIV infection. In conclusion, these cells are a platform to investigate CCR5 pathophysiology in HIV-positive and negative individuals and to help develop novel therapies.
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Affiliation(s)
- Guibin Chen
- Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Francesca Calcaterra
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy
- Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, 20054 Segrate, Italy
| | - Yuchi Ma
- Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Xianfeng Ping
- Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - Elena Pontarini
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy
- Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, London, England, UK
| | - Dan Yang
- Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ferdinando Oriolo
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy
- Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, 20054 Segrate, Italy
| | - Zhen Yu
- Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Assunta Cancellara
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy
- Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, 20054 Segrate, Italy
| | - Joanna Mikulak
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy
| | - Yuting Huang
- Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Silvia Della Bella
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy
- Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, 20054 Segrate, Italy
| | - Yangtengyu Liu
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha, China
| | - Leslie G. Biesecker
- Center for Precision Health Research, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Rebecca L. Harper
- Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Clifton L. Dalgard
- The American Genome Center, Uniformed Services University, Bethesda, MD, USA
| | - Manfred Boehm
- Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Domenico Mavilio
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy
- Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, 20054 Segrate, Italy
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6
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Tornatore M, Amaral SC, Alves BM, de Oliveira GR, Finger-Jardim F, Avila EC, Pivato AF, Lobato RC, Chies JAB, Ellwanger JH, Soares EA, Sánchez-Luquez K, Gonçalves CV, Martínez AMBD, Soares MA, da Hora VP. HLA-G alleles and their impacts on placental HSV-1 infection in women from southern Brazil. J Reprod Immunol 2023; 159:104134. [PMID: 37634319 DOI: 10.1016/j.jri.2023.104134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 08/11/2023] [Accepted: 08/12/2023] [Indexed: 08/29/2023]
Abstract
The Human Leukocyte Antigen G (HLA-G) is an immunoregulatory molecule with a critical role in pregnancy success. HLA-G alleles are associated with differential susceptibility to multiple conditions, including gestational problems, infectious diseases, and viral persistence. Of note, both herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) can impair HLA-G expression, interfering with HLA-G-associated immunoregulation. On the other hand, the impacts of HLA-G alleles on susceptibility to Herpesviridae infection is a neglected issue. Therefore, this study evaluated HLA-G allele frequencies and their associations with placental Herpesviridae infection in women from southern Brazil. Placenta samples were collected soon after delivery, and detection of viral DNA of HSV-1, HSV-2 and human cytomegalovirus (HCMV) was performed by polymerase chain reaction (PCR). A fragment of HLA-G (exons 2-4) was amplified by PCR, sequenced, and analyzed to allele determination. One hundred and seventy women had their alleles determined. Overall, 25 HLA-G alleles were found, distributed into 56 different genotypes. The most frequent alleles were G* 01:01:01 and G* 01:01:02, found in 37.9 % and 16.5 % of samples, respectively. Among the 170 women, 89 (52.4 %) tested positive for Herpesviridae DNA in the placenta, 55 (32.3 %) tested negative, 3 (1.8 %) were negative for HSV-1 and HSV-2 (with absent HCMV data), and 23 (13.5 %) were undetermined. The G* 01:01:01 allele was significantly associated with an increased risk of placental HSV-1 infection (p = 0.0151; OR=1.837; IC=1.108-3.045). This study describes new information concerning placental HLA-G alleles in women from southern Brazil and helps explain how genetic background can modify susceptibility to placental infections.
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Affiliation(s)
- Michele Tornatore
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | | | - Brunna M Alves
- Post-Graduate Program in Oncovirology, Instituto Nacional do Câncer (INCA), Rio de Janeiro, RJ, Brazil
| | | | - Fabiana Finger-Jardim
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Emiliana Claro Avila
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Andressa Fernandes Pivato
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Rubens Caurio Lobato
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - José Artur Bogo Chies
- Laboratory of Immunobiology and Immunogenetics, Post-Graduate Program in Genetics and Molecular Biology (PPGBM), Department of Genetics, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Joel Henrique Ellwanger
- Laboratory of Immunobiology and Immunogenetics, Post-Graduate Program in Genetics and Molecular Biology (PPGBM), Department of Genetics, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Esmeralda A Soares
- Post-Graduate Program in Oncovirology, Instituto Nacional do Câncer (INCA), Rio de Janeiro, RJ, Brazil
| | - Karen Sánchez-Luquez
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Carla Vitola Gonçalves
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Ana Maria Barral de Martínez
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Marcelo A Soares
- Post-Graduate Program in Oncovirology, Instituto Nacional do Câncer (INCA), Rio de Janeiro, RJ, Brazil; Department of Genetics, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Vanusa Pousada da Hora
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil.
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7
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Pereira EEB, Modesto AAC, Fernandes BM, Burbano RMR, Assumpção PP, Fernandes MR, Guerreiro JF, dos Santos SEB, dos Santos NPC. Association between Polymorphism of Genes IL-1A, NFKB1, PAR1, TP53, and UCP2 and Susceptibility to Non-Small Cell Lung Cancer in the Brazilian Amazon. Genes (Basel) 2023; 14:461. [PMID: 36833388 PMCID: PMC9957054 DOI: 10.3390/genes14020461] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 02/15/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) accounts for the vast majority of cases of lung neoplasms. It is formed in multiple stages, with interactions between environmental risk factors and individual genetic susceptibility and with genes involved in the immune and inflammatory response paths, cell or genome stability, and metabolism, among others. Our objective was to evaluate the association between five genetic variants (IL-1A, NFKB1, PAR1, TP53, and UCP2) and the development of NSCLC in the Brazilian Amazon. The study included 263 individuals with and without lung cancer. The samples were analyzed for the genetic variants of NFKB1 (rs28362491), PAR1 (rs11267092), TP53 (rs17878362), IL-1A (rs3783553), and UCP2 (INDEL 45-bp), which were genotyped in PCR, followed by an analysis of the fragments, in which we applied a previously developed set of informative ancestral markers. We used a logistic regression model to identify differences in the allele and the genotypic frequencies among individuals and their association with NSCLC. The variables of gender, age, and smoking were controlled in the multivariate analysis to prevent confusion by association. The individuals that were homozygous for the Del/Del of polymorphism NFKB1 (rs28362491) (p = 0.018; OR = 0.332) demonstrate a significant association with NSCLC, which was similar to that observed in the variants of PAR1 (rs11267092) (p = 0.023; OR = 0.471) and TP53 (rs17878362) (p = 0.041; OR = 0.510). Moreover, the individuals with the Ins/Ins genotype of polymorphism IL-1A (rs3783553) demonstrated greater risk for NSCLC (p = 0.033; OR = 2.002), as did the volunteers with the Del/Del of UCP2 (INDEL 45-bp) (p = 0.031; OR = 2.031). The five polymorphisms investigated can contribute towards NSCLC susceptibility in the population of the Brazilian Amazon.
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Affiliation(s)
- Esdras E. B. Pereira
- Laboratory of Human and Medical Genetics, Institute of Biological Science, Federal University of Pará, Belem 66077-830, PA, Brazil
- Oncology Research Center, Federal University of Pará, Belem 66073-005, PA, Brazil
- Instituto Tocantinense Presidente Antônio Carlos (ITPAC), Abaetetuba 68440-000, PA, Brazil
| | - Antônio A. C. Modesto
- Laboratory of Human and Medical Genetics, Institute of Biological Science, Federal University of Pará, Belem 66077-830, PA, Brazil
- Oncology Research Center, Federal University of Pará, Belem 66073-005, PA, Brazil
| | - Bruno M. Fernandes
- Oncology Research Center, Federal University of Pará, Belem 66073-005, PA, Brazil
| | - Rommel M. R. Burbano
- Laboratory of Human and Medical Genetics, Institute of Biological Science, Federal University of Pará, Belem 66077-830, PA, Brazil
- Oncology Research Center, Federal University of Pará, Belem 66073-005, PA, Brazil
| | - Paulo P. Assumpção
- Oncology Research Center, Federal University of Pará, Belem 66073-005, PA, Brazil
| | | | - João F. Guerreiro
- Laboratory of Human and Medical Genetics, Institute of Biological Science, Federal University of Pará, Belem 66077-830, PA, Brazil
| | - Sidney E. B. dos Santos
- Laboratory of Human and Medical Genetics, Institute of Biological Science, Federal University of Pará, Belem 66077-830, PA, Brazil
- Oncology Research Center, Federal University of Pará, Belem 66073-005, PA, Brazil
| | - Ney P. C. dos Santos
- Laboratory of Human and Medical Genetics, Institute of Biological Science, Federal University of Pará, Belem 66077-830, PA, Brazil
- Oncology Research Center, Federal University of Pará, Belem 66073-005, PA, Brazil
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Assessment of NKG2C copy number variation in HIV-1 infection susceptibility, and considerations about the potential role of lacking receptors and virus infection. J Hum Genet 2022; 67:475-479. [PMID: 35314764 PMCID: PMC8938163 DOI: 10.1038/s10038-022-01029-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 02/16/2022] [Accepted: 02/28/2022] [Indexed: 12/02/2022]
Abstract
Human Immunodeficiency Virus (HIV) infection dynamics is strongly influenced by the host genetic background. NKG2C is an activating receptor expressed mainly on Natural Killer (NK) cells, and a polymorphism of copy number variation in the gene coding for this molecule has been pointed as a potential factor involved in HIV infection susceptibility. We evaluated the impact of the NKG2C deletion on HIV-1 susceptibility, with or without HBV/HCV co-infection, in a total of 780 individuals, including 385 HIV-infected patients and 395 healthy blood donors. NKG2C deletion genotyping was performed by standard PCR. To our knowledge, this is the first study to access the impact of complete NKG2C deletion among HIV-infected Brazilian individuals. The frequency of NKG2C deletion (range: 19–22%) was similar in cases and controls. No association of NKG2C deletion with HIV-1 susceptibility or influence on clinical features, HBV or HCV co-infection was observed in the evaluated population. Our findings suggest that NKG2C deletion, and the consequent absence of this receptor expression, does not directly impact HIV susceptibility, HBV/HCV-co-infection in the studied population, suggesting that other signaling pathways might be triggered and perform similar functions in cell activity in the absence of this specific receptor, preventing the development of disadvantageous phenotypes. Larger cohorts and studies involving protein expression are necessary to confirm our findings.
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