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Alyami A, AlJurayyan A, Alosaimi B, Alkadi H, Alkhulaifi F, Al-Jurayb H, Osman A, Christmas S, Alomar S, Al-Bayati Z. The correlation between soluble human leukocyte antigen (sHLA-G) levels and +3010 polymorphism. Int J Immunogenet 2024; 51:39-46. [PMID: 38087909 DOI: 10.1111/iji.12648] [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: 08/21/2023] [Revised: 11/16/2023] [Accepted: 12/01/2023] [Indexed: 01/10/2024]
Abstract
Human leukocyte antigen-G (HLA-G) is classified as non-classical HLA, located in the short arm of chromosome 6 and composed of seven introns and eight exons. The HLA-G gene has a lower frequency polymorphism in the coding area and higher variability at the regulatory 5'- and 3'-untranslated regions linked to HLA-G microRNA regulation. HLA-G molecule is known to have an immunomodulatory and tolerogenic features role. In 199 Saudi individuals, we examined the association between plasma soluble HLA-G (sHLA-G) levels and eight polymorphic different sites, including 14 bp ins/del/+3003T-C/+3010C-G/+3027C-A/+3035C-T/+3142C-G/+3187A-G/+3196C-G single nucleotide polymorphisms (SNPs) in exon 8 in the HLA-G gene. Our results revealed higher frequency for rs17179101C (97%), rs1707T (92%) and rs9380142A (73%) alleles. Greater frequencies for the tested genotypes were observed in 3027C/C (rs17179101) (93%), 14 bp (rs1704) ins/del (92%), +3003T/T (rs1707) (85%) and +3035C/T (rs17179108) (79%) SNP genotypes. Moreover, we observed a significant association of sHLA-G with +3010G/C (rs1710) SNP. In conclusion, we showed a significant association between 3010G/C (rs1710) SNP and the sHLA-G level among our sample for Saudi populations. Our findings demonstrated that specific SNP within the HLA-G gene is linked to sHLA-G molecule secretion, suggesting sHLA-G levels may be regulated genetically.
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Affiliation(s)
- Ahmed Alyami
- Pathology and Clinical Laboratory Medicine Administration, King Fahad Medical City, Riyadh Second Health Cluster, Riyadh, Saudi Arabia
| | - Abdullah AlJurayyan
- Pathology and Clinical Laboratory Medicine Administration, King Fahad Medical City, Riyadh Second Health Cluster, Riyadh, Saudi Arabia
| | - Bandar Alosaimi
- Research Center, King Fahad Medical City Riyadh Second Health Cluster, Riyadh, Saudi Arabia
| | - Haitham Alkadi
- Research Center, King Fahad Medical City Riyadh Second Health Cluster, Riyadh, Saudi Arabia
| | - Fadwa Alkhulaifi
- College of Science, Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia
| | - Haya Al-Jurayb
- Pathology and Clinical Laboratory Medicine Administration, King Fahad Medical City, Riyadh Second Health Cluster, Riyadh, Saudi Arabia
| | - Awad Osman
- Pathology and Clinical Laboratory Medicine Administration, King Fahad Medical City, Riyadh Second Health Cluster, Riyadh, Saudi Arabia
| | - Steve Christmas
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
| | - Suliman Alomar
- College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Zaid Al-Bayati
- Department of Genetic Study, Azadi Teaching Hospital, Kirkuk, Iraq
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Oliveira Correa JD, Zambra FMB, Michita RT, Álvares-da-Silva MR, Simon D, Chies JAB. HLA-G 3'UTR haplotype analyses in HCV infection and HCV-derived cirrhosis, hepatocellular carcinoma and fibrosis. Int J Immunogenet 2023; 50:249-255. [PMID: 37658479 DOI: 10.1111/iji.12636] [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: 06/05/2023] [Revised: 08/17/2023] [Accepted: 08/23/2023] [Indexed: 09/03/2023]
Abstract
Hepatitis C virus (HCV) infection is a major cause of chronic liver disease. Chronic HCV infection is also an important cause of hepatic fibrosis, cirrhosis and hepatocellular carcinoma (HCC). HCV has the capacity to evade immune surveillance by altering the host immune response. Moreover, variations in immune-related genes can lead to differential susceptibility to HCV infection as well as interfere on the susceptibility to the development of hepatic fibrosis, cirrhosis and HCC. The human leucocyte antigen G (HLA-G) gene codes for an immunomodulatory protein known to be expressed in the maternal-foetal interface and in immune-privileged tissues. The HLA-G 3' untranslated region (3'UTR) is important for mRNA stability, and variants in this region are known to impact gene expression. Studies, mainly focusing in a 14 bp insertion/deletion polymorphism, have correlated HLA-G 3'UTR with susceptibility to viral infections, but other polymorphic variants in the HLA-G 3'UTR might also affect HCV infection as they are inherited as haplotypes. The present study evaluated HLA-G 3'UTR polymorphisms and performed linkage disequilibrium test and haplotype assembly in 286 HCV infected patients who have developed fibrosis, cirrhosis or HCC, as well as in 129 healthy control subjects. Haplotypes UTR-1, UTR-2 and UTR-3 were the most observed in HCV+ patients, in the frequencies of 0.276, 0.255 and 0.121, respectively. No statistically significant difference was observed between HCV+ and control subjects, even when patients were grouped according to outcome (HCC, cirrhosis or fibrosis). Despite that, some trends in the results were observed, and therefore, we cannot rule out the possibility that variants associated to high HLA-G expression can be involved in HCV infection susceptibility.
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Affiliation(s)
- Julio Daimar Oliveira Correa
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | | | - Rafael Tomoya Michita
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | | | - Daniel Simon
- Laboratório de Genética Molecular Humana, Universidade Luterana do Brasil (ULBRA), Canoas, Brazil
| | - José Artur Bogo Chies
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
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Gan J, Di XH, Yan ZY, Gao YF, Xu HH. HLA-G 3'UTR polymorphism diplotypes and soluble HLA-G plasma levels impact cervical cancer susceptibility and prognosis. Front Immunol 2022; 13:1076040. [PMID: 36618382 PMCID: PMC9810980 DOI: 10.3389/fimmu.2022.1076040] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022] Open
Abstract
Background Human leukocyte antigen G (HLA-G) is an immune checkpoint molecule with relevance in several cancers. The aim of this study was to evaluate the potential role of soluble HLA-G (sHLA-G), its genetic polymorphisms and its haplotype structure in the susceptibility and prognosis of primary cervical cancer in a Chinese Han population. Methods We investigated sHLA-G plasma levels and 3' untranslated region (3'UTR) polymorphisms through ELISA and direct DNA sequencing, respectively, in cervical cancer patients (120 cases) and healthy control women (96 cases). The data were analyzed for associations using PowerMarker, Haploview, and GraphPad Prism. Results In this study, 8 polymorphic sites, 16 haplotypes and 23 diplotypes in the HLA-G 3'UTR were identified in our study population. We observed that each pair of 8 polymorphic sites exhibited linkage disequilibrium. The heterozygote CT genotype at position +3422 (rs17875408) was more common in cervical cancer patients than in healthy women (OR=5.285, P<0.05). Haplotypes UTR-1, UTR-3, and UTR-7 accounted for more than 85% of both groups, but no significant difference was found. The frequency of the UTR-1/UTR-3 diplotype in patients was significantly higher than that in controls (P<0.05). In addition, we further observed that HLA-G 3'UTR polymorphisms may influence the sHLA-G plasma level in patients' peripheral blood, especially 14 bp Ins/Del (rs371194629) and +3142 C/G (rs1063320). A receiver operating characteristic (ROC) curve analysis showed that the sHLA-G level had good diagnostic performance in differentiating patients with cervical cancer from healthy women (AUC>0.7). Among patients, mean sHLA-G levels increased with increasing FIGO stages but were not related to the overall survival time. Conclusions The results of the present study enhance our understanding of how HLA-G 3'UTR polymorphisms can influence the peripheral sHLA-G plasma level and play a key role in cervical carcinogenesis. This study further confirmed that sHLA-G may represent a novel plasma biomarker for the prognosis and potential therapeutic target of cervical cancer.
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Affiliation(s)
- Jun Gan
- Medical Research Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, China
| | - Xing-Hong Di
- Medical Research Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, China
| | - Zi-Yi Yan
- Medical Research Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, China
| | - Yang-Fan Gao
- School of Clinical Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Hui-Hui Xu
- Medical Research Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, China.,Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumour of Zhejiang Province, Linhai, China
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Castelli EC, de Almeida BS, Muniz YCN, Silva NSB, Passos MRS, Souza AS, Page AE, Dyble M, Smith D, Aguileta G, Bertranpetit J, Migliano AB, Duarte YAO, Scliar MO, Wang J, Passos-Bueno MR, Naslavsky MS, Zatz M, Mendes-Junior CT, Donadi EA. HLA-G genetic diversity and evolutive aspects in worldwide populations. Sci Rep 2021; 11:23070. [PMID: 34845256 PMCID: PMC8629979 DOI: 10.1038/s41598-021-02106-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 11/01/2021] [Indexed: 12/15/2022] Open
Abstract
HLA-G is a promiscuous immune checkpoint molecule. The HLA-G gene presents substantial nucleotide variability in its regulatory regions. However, it encodes a limited number of proteins compared to classical HLA class I genes. We characterized the HLA-G genetic variability in 4640 individuals from 88 different population samples across the globe by using a state-of-the-art method to characterize polymorphisms and haplotypes from high-coverage next-generation sequencing data. We also provide insights regarding the HLA-G genetic diversity and a resource for future studies evaluating HLA-G polymorphisms in different populations and association studies. Despite the great haplotype variability, we demonstrated that: (1) most of the HLA-G polymorphisms are in introns and regulatory sequences, and these are the sites with evidence of balancing selection, (2) linkage disequilibrium is high throughout the gene, extending up to HLA-A, (3) there are few proteins frequently observed in worldwide populations, with lack of variation in residues associated with major HLA-G biological properties (dimer formation, interaction with leukocyte receptors). These observations corroborate the role of HLA-G as an immune checkpoint molecule rather than as an antigen-presenting molecule. Understanding HLA-G variability across populations is relevant for disease association and functional studies.
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Affiliation(s)
- Erick C Castelli
- Molecular Genetics and Bioinformatics Laboratory, Experimental Research Unit, School of Medicine, São Paulo State University (UNESP), Botucatu, State of São Paulo, Brazil.
- Department of Pathology, School of Medicine, São Paulo State University (UNESP), Botucatu, State of São Paulo, CEP: 18618970, Brazil.
| | - Bibiana S de Almeida
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, CEP: 14049-900, Brazil
- Laboratório Multiusuário de Estudos em Biologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brazil
| | - Yara C N Muniz
- Departamento de Biologia Celular, Embriologia e Genética, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brazil
| | - Nayane S B Silva
- Molecular Genetics and Bioinformatics Laboratory, Experimental Research Unit, School of Medicine, São Paulo State University (UNESP), Botucatu, State of São Paulo, Brazil
| | - Marília R S Passos
- Molecular Genetics and Bioinformatics Laboratory, Experimental Research Unit, School of Medicine, São Paulo State University (UNESP), Botucatu, State of São Paulo, Brazil
| | - Andreia S Souza
- Molecular Genetics and Bioinformatics Laboratory, Experimental Research Unit, School of Medicine, São Paulo State University (UNESP), Botucatu, State of São Paulo, Brazil
| | - Abigail E Page
- Department of Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Mark Dyble
- Departament of Anthropology, University College London (UCL), London, UK
| | - Daniel Smith
- Bristol Medical School (PHS), University of Bristol, Bristol, UK
| | - Gabriela Aguileta
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Jaume Bertranpetit
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Andrea B Migliano
- Departament of Anthropology, Unversity of Zurich, Zurich, Switzerland
| | - Yeda A O Duarte
- Escola de Enfermagem e Faculdade de Saúde Pública, Universidade de São Paulo (USP), São Paulo, State of São Paulo, Brazil
| | - Marília O Scliar
- Human Genome and Stem Cell Research Center, Biosciences Institute, University of São Paulo (USP), São Paulo, State of São Paulo, Brazil
| | - Jaqueline Wang
- Human Genome and Stem Cell Research Center, Biosciences Institute, University of São Paulo (USP), São Paulo, State of São Paulo, Brazil
| | - Maria Rita Passos-Bueno
- Human Genome and Stem Cell Research Center, Biosciences Institute, University of São Paulo (USP), São Paulo, State of São Paulo, Brazil
- Department of Genetics and Evolutionary Biology, Biosciences Institute, University of São Paulo (USP), São Paulo, State of São Paulo, Brazil
| | - Michel S Naslavsky
- Human Genome and Stem Cell Research Center, Biosciences Institute, University of São Paulo (USP), São Paulo, State of São Paulo, Brazil
- Department of Genetics and Evolutionary Biology, Biosciences Institute, University of São Paulo (USP), São Paulo, State of São Paulo, Brazil
- Hospital Israelita Albert Einstein, São Paulo, State of São Paulo, Brazil
| | - Mayana Zatz
- Human Genome and Stem Cell Research Center, Biosciences Institute, University of São Paulo (USP), São Paulo, State of São Paulo, Brazil
- Department of Genetics and Evolutionary Biology, Biosciences Institute, University of São Paulo (USP), São Paulo, State of São Paulo, Brazil
| | - Celso Teixeira Mendes-Junior
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, 14040-901, Ribeirão Preto, SP, Brazil
| | - Eduardo A Donadi
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, CEP: 14049-900, Brazil.
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Williams RC, Koroglu C, Knowler WC, Shuldiner AR, Gosalia N, Van Hout C, Hanson RL, Bogardus C, Baier LJ. Next generation sequencing for HLA loci in full heritage Pima Indians of Arizona, Part II: HLA-A, -B, and -C with selected non-classical loci at 4-field resolution from whole genome sequences. Hum Immunol 2021; 82:385-403. [PMID: 33875299 DOI: 10.1016/j.humimm.2021.03.013] [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: 04/16/2019] [Revised: 03/26/2021] [Accepted: 03/29/2021] [Indexed: 11/19/2022]
Abstract
While the samples and data from the Pima Indians of the Gila River Indian Community have been included in many international HLA workshops and conferences and have been the focus of numerous population reports and the source of novel alleles at the classical HLA loci, they have not been studied for the non-classical loci. In order to expand our HLA-disease association studies, we typed over 300 whole genome sequences from full Pima heritage members, controlled for first degree relationship, and employed recently developed computer algorithms to resolve HLA alleles. Both classical-HLA-A, -B, and -C- and non-classical- HLA-E, -F, -G, -J, -L, -W, -Y, -DPA2, -DPB2, -DMA, -DMB, -DOA, -DRB2, -DRB9, TAP1- loci were typed at the 4-field level of resolution. We present allele and selected haplotype frequencies, test the genotype distributions for population structure, discuss the issues that are created for tests of Hardy-Weinberg equilibrium over the four sample spaces of high resolution HLA typing, and address the implications for the evolution of non-classical pseudogenes that are no longer expressed in a phenotype subject to natural selection.
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Affiliation(s)
- Robert C Williams
- Phoenix Epidemiology and Clinical Research Branch, NIH, NIDDK, Phoenix 85014, AZ, United States.
| | - Cigdem Koroglu
- Phoenix Epidemiology and Clinical Research Branch, NIH, NIDDK, Phoenix 85014, AZ, United States
| | - William C Knowler
- Phoenix Epidemiology and Clinical Research Branch, NIH, NIDDK, Phoenix 85014, AZ, United States
| | | | - Nehal Gosalia
- Regeneron Genetics Center, Tarrytown 10591, NY, United States
| | | | - Robert L Hanson
- Phoenix Epidemiology and Clinical Research Branch, NIH, NIDDK, Phoenix 85014, AZ, United States
| | - Clifton Bogardus
- Phoenix Epidemiology and Clinical Research Branch, NIH, NIDDK, Phoenix 85014, AZ, United States
| | - Leslie J Baier
- Phoenix Epidemiology and Clinical Research Branch, NIH, NIDDK, Phoenix 85014, AZ, United States
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Mattuella LG, Bernardi L, Zambra FMB, Campagnaro MB, Oppermann RV, Xavier LL, Chies JAB, Miranda LA. Human leukocyte antigen-G polymorphisms in periodontitis. Acta Odontol Scand 2020; 78:141-145. [PMID: 31519120 DOI: 10.1080/00016357.2019.1662942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Objective: This study evaluated human leucocyte antigen-G gene polymorphisms in patients with periodontitis and healthy controls.Material and methods: The insertion/deletion polymorphism of 14 bp and a single nucleotide polymorphism (SNP) C > G on the position +3142 of the 3' untranslated region of the gene were analyzed in chronic periodontitis (n = 62), aggressive periodontitis (n = 24) patients and healthy individuals (n = 47).Results: Considering the 14 bp insertion/deletion, a significant deviation from Hardy-Weinberg expectations in the chronic periodontitis group was observed, but not in the other groups. No significant deviations were observed in patients and control groups considering the +3142 C > G SNP. A significant increased frequency of homozygotes for the 14 bp deletion allele was observed in the chronic periodontitis group as compared to controls. This group also presented a higher frequency of the deletion allele, which was marginally not significant. Concerning this polymorphism, no significant differences were observed between the aggressive periodontitis and healthy control groups. In addition, no significant differences were seen amongst patients and controls when considering the +3142 C > G frequencies.Conclusion: No differences were found amongst patients and controls when considering the +3142 C > G SNP haplotypes frequencies, but a significant increased frequency of homozygotes for the 14 bp deletion allele was observed in chronic periodontitis patients compared to healthy controls, suggesting a susceptibility role of this polymorphism in the pathogenesis of this condition.
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Affiliation(s)
| | - Lisiane Bernardi
- Morphological Sciences, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil
| | | | - Milene Borges Campagnaro
- Tissue Biology Lab, Pontifícia Universidade Católica Do Rio Grande Do Sul (PUCRS), Porto Alegre, Brazil
| | - Rui Vicente Oppermann
- Dental School, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil
| | - Léder Leal Xavier
- Tissue Biology Lab, Pontifícia Universidade Católica Do Rio Grande Do Sul (PUCRS), Porto Alegre, Brazil
| | - José Artur Bogo Chies
- Immunogenetics Lab, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil
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7
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Sonon P, Sadissou I, Tokplonou L, M'po KKG, Glitho SSC, Agniwo P, Ibikounlé M, Massaro JD, Massougbodji A, Moreau P, Sabbagh A, Mendes-Junior CT, Moutairou KA, Castelli EC, Courtin D, Donadi EA. HLA-G, -E and -F regulatory and coding region variability and haplotypes in the Beninese Toffin population sample. Mol Immunol 2018; 104:108-127. [PMID: 30448608 DOI: 10.1016/j.molimm.2018.08.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 08/16/2018] [Indexed: 12/17/2022]
Abstract
HLA-G/E/F genes exhibit immunomodulatory properties and are expressed in placenta. Little attention has been devoted to the study of these genes in sub-Saharan African populations, which are yet the most diverse. To fill this gap, we evaluated the complete gene variability, approximately 5.1 kb for HLA-G (n = 149), 7.7 kb for HLA-E (n = 150) and 6.2 kb for HLA-F (n = 152) in the remote Beninese Toffin population, using massive parallel sequencing. Overall, 96, 37 and 68 variable sites were detected along the entire HLA-G, -E and -F, respectively, arranged into region-specific haplotypes; i.e., promoter haplotypes (16, 19, and 15 respectively), coding haplotypes (19, 15, and 29 respectively), 3' untranslated region (3'UTR) haplotypes (12, 7 and 2, respectively) and extended haplotypes (33, 31 and 32 respectively). All promoter/coding/3'UTR haplotypes followed the patterns already described in worldwide populations. HLA-E was the most conserved, exhibiting mainly two full-length encoded-molecules (E*01:01 and E*01:03), followed by HLA-F, three full-length proteins (F*01:01, F*01:02 and F*01:03) and HLA-G, four proteins: three full-length (G*01:01, G*01:03 and G*01:04) and one truncated (G*01:05N). Although HLA-G/E/F alleles in the Toffin population were the most frequently observed worldwide, the frequencies of the coding haplotypes were closely similar to those described for other African populations (Guinea-Conakry and Burkina-Faso), when compared to non-African ones (Brazilian), indicating that variable sites along these genes were present in Africa before human dispersion.
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Affiliation(s)
- Paulin Sonon
- Laboratório de Biologia Molecular, Universidade de São Paulo, Programa de Imunologia Básica e Aplicada (IBA), Faculdade de Medicina de Ribeirão Preto (FMRP-USP), Estado de São Paulo, SP, Brazil.
| | - Ibrahim Sadissou
- Laboratório de Biologia Molecular, Universidade de São Paulo, Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto (FMRP-USP), Estado de São Paulo, SP, Brazil.
| | - Léonidas Tokplonou
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Cotonou, Benin; UMR 216 MERIT, IRD, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Université d'Abomey-Calavi, Cotonou, Benin.
| | - Kuumaaté K G M'po
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Cotonou, Benin; Département de Zoologie, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Benin.
| | - Sonya S C Glitho
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Cotonou, Benin; Département de Zoologie, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Benin.
| | - Privat Agniwo
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Cotonou, Benin; Département de Zoologie, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Benin.
| | - Moudachirou Ibikounlé
- Université d'Abomey-Calavi, Cotonou, Benin; Département de Zoologie, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Benin.
| | - Juliana Doblas Massaro
- Laboratório de Biologia Molecular, Universidade de São Paulo, Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto (FMRP-USP), Estado de São Paulo, SP, Brazil.
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Cotonou, Benin.
| | - Philippe Moreau
- Commissariat à l'Energie Atomique et aux Energies Alternatives, Direction de la Recherche Fondamentale, Institut de Biologie François Jacob, Service de Recherches en Hémato-Immunologie, Hôpital Saint-Louis, Paris, France; Université Paris-Diderot, Sorbonne Paris-Cité, UMR_E5, Institut Universitaire d'Hématologie, Hôpital Saint-Louis, Paris, France.
| | - Audrey Sabbagh
- UMR 216 MERIT, IRD, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, Paris, France.
| | - Celso T Mendes-Junior
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, State of São Paulo, Brazil.
| | - Kabirou A Moutairou
- Laboratoire de Biologie et Physiologie Cellulaire, Université d'Abomey-Calavi, Cotonou, Benin.
| | - Erick C Castelli
- São Paulo State University (UNESP), Molecular Genetics and Bioinformatics Laboratory, Experimental Research Unit (UNIPEX), School of Medicine, Botucatu, State of São Paulo, Brazil; São Paulo State University (UNESP), Department of Pathology, School of Medicine, Botucatu, State of São Paulo, Brazil.
| | - David Courtin
- UMR 216 MERIT, IRD, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, Paris, France.
| | - Eduardo A Donadi
- Laboratório de Biologia Molecular, Universidade de São Paulo, Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto (FMRP-USP), Estado de São Paulo, SP, Brazil.
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Medeiros FS, Martins AES, Gomes RG, de Oliveira SAV, Welkovic S, Maruza M, Menezes MLB, Ximenes RADA, Diniz GTN, Donadi EA, Lucena-Silva N. Variation sites at the HLA-G 3' untranslated region confer differential susceptibility to HIV/HPV co-infection and aneuploidy in cervical cell. PLoS One 2018; 13:e0204679. [PMID: 30278059 PMCID: PMC6168131 DOI: 10.1371/journal.pone.0204679] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 09/12/2018] [Indexed: 01/17/2023] Open
Abstract
Post-transcriptional regulatory elements associated with transcript degradation or transcript instability have been described at the 3' untranslated region (3'UTR) of the HLA-G gene. Considering that HPV infection and aneuploidy, which causes gene instability, are associated with cervical cell malignancy, as well as the fact that HIV infection and HLA-G may modulate the immune response, the present study aimed to compare the frequencies of HLA-G 3'UTR polymorphic sites (14-base pair insertion/deletion, +3142C/G, and +3187A/G) between 226 HIV+ women co-infected (n = 82) or not with HPV (n = 144) and 138 healthy women. We also evaluated the relationship between those HLA-G 3'UTR variants and aneuploidy in cervical cells. HPV types and HLA-G polymorphisms were determined by PCR and sequencing of cervical samples DNA. Aneuploidy in cervical cell was measured by flow cytometry. The HLA-G 3'UTR 14-bp ins/del was not associated with either HIV nor HIV/HPV co-infection. The +3142G allele (p = 0.049) and +3142GG genotype (p = 0.047) were overrepresented in all HIV-infected women. On the other hand, the +3187G allele (p = 0.028) and the +3187GG genotype (p = 0.026) predominated among healthy women. The +3142G (p = 0.023) and +3187A (p = 0.003) alleles were associated with predisposition to HIV infection, irrespective of the presence or not of HIV/HPV co-infection. The diplotype formed by the combination of the +3142CX (CC or CG) and +3187AA genotype conferred the highest risk for aneuploidy in cervical cell induced by HPV. The HLA-G 3'UTR +3142 and +3187 variants conferred distinct susceptibility to HIV infection and aneuploidy.
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Affiliation(s)
- Fernanda Silva Medeiros
- Department of Immunology, Laboratory of Immunogenetics, Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Recife, Brazil
| | - Albert Eduardo Silva Martins
- Department of Immunology, Laboratory of Immunogenetics, Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Recife, Brazil
| | - Renan Garcia Gomes
- Department of Immunology, Laboratory of Immunogenetics, Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Recife, Brazil
| | | | - Stefan Welkovic
- Integrated Health Centre Amaury de Medeiros (CISAM), University of Pernambuco, Recife, Brazil
| | - Magda Maruza
- Hospital Correia Picanço, Health Secretariat of Pernambuco, Recife, Brazil
| | - Maria Luiza Bezerra Menezes
- Maternal and Child Department of the Faculty of Medical Sciences—University of Pernambuco (UPE), Recife, Brazil
| | | | - George Tadeu Nunes Diniz
- Department of Public Health, Laboratory Computational Methods, Aggeu Magalhães Institute, Recife, Brazil
| | - Eduardo Antônio Donadi
- Department of Medicine, School of Medicine of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Norma Lucena-Silva
- Department of Immunology, Laboratory of Immunogenetics, Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Recife, Brazil
- Pediatric Oncology Service, IMIP Hospital, Recife, Brazil
- * E-mail:
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9
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Hahn EC, Zambra FMB, Kamada AJ, Delongui F, Grion CMC, Reiche EMV, Chies JAB. Association of HLA-G 3'UTR polymorphisms and haplotypes with severe sepsis in a Brazilian population. Hum Immunol 2017; 78:718-723. [PMID: 28941746 DOI: 10.1016/j.humimm.2017.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 08/16/2017] [Accepted: 09/19/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND The human leukocyte antigen G (HLA-G) is a molecule involved in immune system modulation, acting in the maintenance of a state of immune tolerance. Some polymorphisms in the HLA-G gene 3' untranslated region (3'UTR) were associated to distinct levels of HLA-G expression and to sepsis development. In the present study, haplotypes and polymorphisms of the HLA-G 3'UTR were analyzed in Brazilian septic patients. METHODS The HLA-G 3'UTR was amplified by PCR, sequenced and eight polymorphisms were genotyped (the 14bp insertion/deletion, +3003T/C, +3010C/G, +3027A/C, +3035C/T, +3142G/C, +3187A/G and+3196C/G) in DNA samples from septic patients (with severe sepsis or septic shock) and controls. The haplotypes were inferred and association tests were performed through Chi square test and binary logistic regression. RESULTS The+3027AC genotype was associated asa risk factor to sepsis development (OR 3.17, PBonferroni 0.048). Further, the presence of the UTR-7 haplotype (OR 2.97, PBonferroni 0.018), and of 14bp-Ins_+3142G_+3187A haplotype (OR 2.39, PBonferroni 0.045) were associated with sepsis, conferring susceptibility. CONCLUSION Our data confirm an important role of HLA-G 3'UTR polymorphisms in the development of severe forms of sepsis (severe sepsis and septic shock). The genotyping of HLA-G genetic variants and haplotypes could be useful as a prediction tool of increased risk to severe sepsis.
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Affiliation(s)
- Eriza Cristina Hahn
- Department of Genetics, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, RS, Brazil.
| | - Francis Maria Báo Zambra
- Department of Genetics, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, RS, Brazil.
| | - Anselmo Jiro Kamada
- Department of Genetics, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brazil.
| | - Francieli Delongui
- Department of Pathology, Clinical Analysis and Toxicology, Universidade Estadual de Londrina - UEL, PR, Brazil.
| | - Cíntia Magalhães Carvalho Grion
- Department of Clinical Medicine, Health Sciences Center, University Hospital, Universidade Estadual de Londrina - UEL, PR, Brazil.
| | - Edna Maria Vissoci Reiche
- Department of Pathology, Clinical Analysis and Toxicology, Universidade Estadual de Londrina - UEL, PR, Brazil.
| | - José Artur Bogo Chies
- Department of Genetics, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, RS, Brazil.
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Albayati Z, Alyami A, Alomar S, Middleton D, Bonnett L, Aleem S, Flanagan BF, Christmas SE. The Influence of Cytomegalovirus on Expression of HLA-G and its Ligand KIR2DL4 by Human Peripheral Blood Leucocyte Subsets. Scand J Immunol 2017; 86:396-407. [PMID: 28817184 DOI: 10.1111/sji.12594] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 08/11/2017] [Indexed: 01/23/2023]
Abstract
HLA-G is a non-classical class I HLA antigen, normally expressed in high levels only on extravillous cytotrophoblast. It has immunosuppressive properties in pregnancy and has also been found to be upregulated on leucocytes in viral infection. In this study, proportions of all leucocyte subsets expressing HLA-G were found to be low in healthy subjects positive or negative for cytomegalovirus (CMV). Significantly greater proportions of CD4+ CD69+ and CD56+ T cells expressed HLA-G compared to other T cells. However, following stimulation with CMV antigens or intact CMV, proportions of CD4+, CD8+, CD69+ and CD56+ T cells, and also B cells expressing HLA-G, were significantly increased in CMV+ subjects. Despite some subjects having alleles of HLA-G associated with high levels of expression, no relationship was found between HLA-G genotype and expression levels. Purified B cells from CMV+ subjects stimulated in mixed culture with CMV antigens showed significantly increased HLA-G mRNA expression by real-time polymerase chain reaction. Serum levels of soluble HLA-G were similar in CMV- and CMV+ subjects but levels in culture supernatants were significantly higher in cells from CMV+ than from CMV- subjects stimulated with CMV antigens. The HLA-G ligand KIR2DL4 was mainly expressed on NK cells and CD56+ T cells with no differences between CMV+ and CMV- subjects. Following stimulation with IL-2, an increase in the proportion of CD56+ T cells positive for KIR2DL4 was found, together with a significant decrease in CD56dimCD16+ NK cells. The results show that CMV influences HLA-G expression in healthy subjects and may contribute to viral immune evasion.
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Affiliation(s)
- Z Albayati
- Department of Clinical Infection, Microbiology & Immunology, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK
| | - A Alyami
- Department of Clinical Infection, Microbiology & Immunology, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK
| | - S Alomar
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - D Middleton
- Transplant Immunology, Royal Liverpool & Broadgreen University Hospital Trust, Liverpool, UK
| | - L Bonnett
- Department of Biostatistics, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - S Aleem
- Department of Clinical Infection, Microbiology & Immunology, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK.,Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - B F Flanagan
- Department of Women's and Children's Health, Institute of Translational Medicine, University of Liverpool, Alder Hey Children's NHS Foundation Trust Hospital, Liverpool, UK
| | - S E Christmas
- Department of Clinical Infection, Microbiology & Immunology, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK
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11
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de Figueiredo-Feitosa NL, Martelli Palomino G, Cilião Alves DC, Mendes Junior CT, Donadi EA, Maciel LMZ. HLA-G 3' untranslated region polymorphic sites associated with increased HLA-G production are more frequent in patients exhibiting differentiated thyroid tumours. Clin Endocrinol (Oxf) 2017; 86:597-605. [PMID: 27914217 DOI: 10.1111/cen.13289] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 11/18/2016] [Accepted: 11/25/2016] [Indexed: 01/20/2023]
Abstract
BACKGROUND HLA-G is a nonclassical class I histocompatibility molecule implicated on the immune escape mechanism of tumour cells. We evaluated the genetic diversity of HLA-G 3' untranslated region (3'UTR) and associated polymorphic sites with clinical presentation and with the magnitude of HLA-G thyroid expression. PATIENTS AND METHODS Polymorphic sites at 3'UTR (14bpINS/DEL, +3003C/T, +3010C/G, +3027A/C, +3035C/T, +3142C/G, +3187A/G, +3196C/G) were characterized by sequencing analyses in blood samples of 72 patients exhibiting papillary thyroid carcinoma (PTC), 22 follicular thyroid carcinomas (FTC), 19 follicular adenomas (FA), 21 colloid goitres and 156 healthy controls. RESULTS Compared to goitre and/or controls, patients with PTC exhibited higher frequency of 14bpDEL (P = 0·030), +3010G (P = 0·034), +3010CG (P = 0·044), +3142CG (P = 0·040), +3035C (P = 0·050) and +3187GG (P = 0·032). Patients with FTC presented higher frequency of 14bpINS/DEL (P = 0·020). The UTR-5 haplotype was underrepresented in PTC (P = 0·050). The +3003TT was more frequent in patients with PTC older than 45 years (P = 0·030). Male patients had a higher frequency of +3196GG (P = 0·040). Tumour multicentricity was associated with UTR-2 (P = 0·030). The following associations were observed in PTC and FTC combined: i) tumour size <2 cm with 14bpINS/INS (P = 0·030); ii) multicentricity with +3035CC (P = 0·030) and +3196GG (P = 0·030); iii) decreased thyroid HLA-G expression with +3196C and +3196CC; and iv) moderate HLA-G thyroid staining with UTR-2. CONCLUSIONS HLA-G 3'UTR polymorphisms associated with a greater magnitude of HLA-G production were associated with differentiated thyroid tumours and with variables implicated in poor prognosis. These findings corroborate the unfavourable role of HLA-G in thyroid cancer.
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Affiliation(s)
- Nathalie Lobo de Figueiredo-Feitosa
- Division of Endocrinology and Metabolism, Department of Internal Medicine, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Gustavo Martelli Palomino
- Program of Basic and Applied Immunology, School of Medicine of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
- Division of Clinical Immunology, Department of Internal Medicine, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Daiani Cristina Cilião Alves
- Program of Basic and Applied Immunology, School of Medicine of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
- Division of Clinical Immunology, Department of Internal Medicine, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Celso Teixeira Mendes Junior
- Department of Chemistry, School of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Eduardo Antonio Donadi
- Division of Clinical Immunology, Department of Internal Medicine, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Léa Maria Zanini Maciel
- Division of Endocrinology and Metabolism, Department of Internal Medicine, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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12
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Castelli EC, Gerasimou P, Paz MA, Ramalho J, Porto IO, Lima TH, Souza AS, Veiga-Castelli LC, Collares CV, Donadi EA, Mendes-Junior CT, Costeas P. HLA-G variability and haplotypes detected by massively parallel sequencing procedures in the geographicaly distinct population samples of Brazil and Cyprus. Mol Immunol 2017; 83:115-126. [DOI: 10.1016/j.molimm.2017.01.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 01/18/2017] [Accepted: 01/20/2017] [Indexed: 12/11/2022]
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13
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Zambra FMB, Biolchi V, de Cerqueira CCS, Brum IS, Castelli EC, Chies JAB. Immunogenetics of prostate cancer and benign hyperplasia--the potential use of an HLA-G variant as a tag SNP for prostate cancer risk. HLA 2016; 87:79-88. [PMID: 26889902 DOI: 10.1111/tan.12741] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 01/06/2016] [Accepted: 01/13/2016] [Indexed: 12/14/2022]
Abstract
Human leukocyte antigen G (HLA-G) is an immunomodulatory molecule with important roles both physiologically as well as an escape mechanism of cancer cells. In this study, we evaluated the impact of eight polymorphisms at the 3' untranslated region (3'UTR) of the HLA-G gene in the development of prostate cancer (PCa) and benign prostatic hyperplasia (BPH). A total of 468 DNA samples of Brazilian men predominantly Euro-descendant with PCa (N = 187), BPH (N = 152) and healthy control individuals (N = 129) were evaluated. The HLA-G 3'UTR region was amplified by polymerase chain reaction (PCR), sequenced and genotyped to identify the 14 bp insertion/deletion (rs371194629), +3003T/C (rs1707), +3010C/G (rs1710), +3027A/C (rs17179101), +3035C/T (rs17179108), +3142G/C (rs1063320), +3187A/G (rs9380142) and +3196C/G (rs1610696) polymorphisms. Regression logistic and chi-square tests were performed to verify the influence of single nucleotide polymorphisms (SNPs) in PCa and/or BPH susceptibility, as well as in PCa progression (clinicopathological status). Our data showed the UTR-4 haplotype as a risk factor to PCa in comparison with control [odds ratio (OR) 2.35, 95% confidence interval (CI) 1.39-3.96, P adjusted = 0.003) and BPH groups (OR 1.82, 95% CI 1.15-2.86, P adjusted = 0.030). Further, the 'non-14bp Ins_ + 3142G_+3187A' haplotype (OR 1.56, 95% CI 1.10-2.20, P adjusted = 0.036), the +3003CT genotype (OR 4.44, 95% CI 1.33-4.50, P adjusted = 0.032) and the +3003C allele (OR 2.33, 95% CI 1.38-3.92, P adjusted = 0.016) also conferred susceptibility to PCa. Our data suggest an important influence of HLA-G 3'UTR polymorphisms in PCa susceptibility and support the use of the +3003 variant as a tag SNP for PCa risk.
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Affiliation(s)
- F M B Zambra
- Department of Genetics, Instituto de Biociências, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, RS, Brazil
| | - V Biolchi
- Centro de Ciências Biológicas e da Saúde, Centro Universitário Univates, Lajeado, RS, Brazil
| | - C C S de Cerqueira
- Consejo Nacional de Investigaciones Científicas y Tecnicas, Centro Nacional Patagonico, Puerto Madryn, Chubut, Argentina
| | - I S Brum
- Department of Physiology, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, RS, Brazil
| | - E C Castelli
- Department of Pathology, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista - UNESP, Botucatu, SP, Brazil
| | - J A B Chies
- Department of Genetics, Instituto de Biociências, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, RS, Brazil
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14
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Amodio G, Canti V, Maggio L, Rosa S, Castiglioni MT, Rovere-Querini P, Gregori S. Association of genetic variants in the 3'UTR of HLA-G with Recurrent Pregnancy Loss. Hum Immunol 2016; 77:886-891. [PMID: 27370685 PMCID: PMC5021086 DOI: 10.1016/j.humimm.2016.06.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 06/22/2016] [Accepted: 06/27/2016] [Indexed: 01/28/2023]
Abstract
Human Leukocyte Antigen (HLA)-G is involved in reprogramming immune responses at fetal-maternal interface during pregnancy. We evaluated the genetic diversity of the 3′ Un-Translated Region (UTR) of HLA-G, previously associated with HLA-G mRNA post-transcriptional regulation, in women with unexplained Recurrent Pregnancy Loss (RPL), with 2 pregnancy losses (RPL-2, n = 28), or 3 or more pregnancy losses (RPL-3, n = 24), and in 30 women with a history of successful pregnancy. Results showed in RPL-2, but not in RPL-3, women compared to controls: i) higher frequency of the 14 bp Ins allele, in single and in double copy; ii) significantly lower frequency of DelG/X genotype, iii) reduced frequency of the UTR-2, and UTR-3 haplotypes; iv) higher frequencies of the UTR-5, UTR-7, and UTR-8 haplotypes. This pilot study supports the relevance of performing 3′UTR HLA-G genetic screening, not limited to a specific polymorphism, but considering the extended haplotypes, as a possible predictor of pregnancy outcome.
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Affiliation(s)
- Giada Amodio
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), Division of Regenerative Medicine, Stem Cells and Gene Therapy, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
| | - Valentina Canti
- Division of Immunology, Transplantation and Infectious Disease, IRCCS San Raffaele Scientific Institute, Via Olgettina 58, 20132 Milan, Italy
| | - Luana Maggio
- Obstetric and Gynecology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Susanna Rosa
- Obstetric and Gynecology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | - Patrizia Rovere-Querini
- Division of Immunology, Transplantation and Infectious Disease, IRCCS San Raffaele Scientific Institute, Via Olgettina 58, 20132 Milan, Italy; Vita-Salute San Raffaele University, Via Olgettina 60, 20132 Milan, Italy
| | - Silvia Gregori
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), Division of Regenerative Medicine, Stem Cells and Gene Therapy, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy.
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15
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de Albuquerque RS, Mendes-Junior CT, Lucena-Silva N, da Silva CLL, Rassi DM, Veiga-Castelli LC, Foss-Freitas MC, Foss MC, Deghaide NHS, Moreau P, Gregori S, Castelli EC, Donadi EA. Association of HLA-G 3′ untranslated region variants with type 1 diabetes mellitus. Hum Immunol 2016; 77:358-64. [DOI: 10.1016/j.humimm.2016.02.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Revised: 11/19/2015] [Accepted: 02/02/2016] [Indexed: 10/22/2022]
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16
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Amodio G, Comi M, Tomasoni D, Gianolini ME, Rizzo R, LeMaoult J, Roncarolo MG, Gregori S. HLA-G expression levels influence the tolerogenic activity of human DC-10. Haematologica 2015; 100:548-57. [PMID: 25661445 DOI: 10.3324/haematol.2014.113803] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Human leukocyte antigen (HLA)-G is a non-classical HLA class I molecule with known immune-modulatory functions. Our group identified a subset of human dendritic cells, named DC-10, that induce adaptive interleukin-10-producing T regulatory type 1 (Tr1) cells via the interleukin-10-dependent HLA-G/ILT4 pathway. In this study we aimed at defining the role of HLA-G in DC-10-mediated Tr1 cell differentiation. We analyzed phenotype, functions, and genetic variations in the 3' untranslated region of the HLA-G locus of in vitro-differentiated DC-10 from 67 healthy donors. We showed that HLA-G expression on DC-10 is donor-dependent. Functional studies demonstrated that DC-10, independently of HLA-G expression, secrete interleukin-10 and negligible levels of interleukin-12. Interestingly, DC-10 with high HLA-G promote allo-specific anergic T cells that contain a significantly higher frequency of Tr1 cells, defined as interleukin-10-producing (P=0.0121) or CD49b(+)LAG-3(+) (P=0.0031) T cells, compared to DC-10 with low HLA-G. We found that the HLA-G expression on DC-10 is genetically imprinted, being associated with specific variations in the 3' untranslated region of the gene, and it may be finely tuned by microRNA-mediated post-transcriptional regulation. These data highlight the important role of HLA-G in boosting DC-10 tolerogenic activity and confirm that interleukin-10 production by DC-10 is necessary but not sufficient to promote Tr1 cells at high frequency. These new insights into the role of HLA-G in DC-10-mediated induction of Tr1 cells provide additional information for clinical use in Tr1- or DC-10-based cell therapy approaches.
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Affiliation(s)
- Giada Amodio
- San Raffaele Telethon Institute for Gene Therapy (HSR-TIGET), Division of Regenerative Medicine, Stem Cells and Gene Therapy, IRCCS San Raffaele Scientific Institute, Milan, Italy Vita-Salute San Raffaele University, Milan, Italy
| | - Michela Comi
- San Raffaele Telethon Institute for Gene Therapy (HSR-TIGET), Division of Regenerative Medicine, Stem Cells and Gene Therapy, IRCCS San Raffaele Scientific Institute, Milan, Italy Ph.D Program in Translational and Molecular Medicine (DIMET), University of Milan-Bicocca, Italy
| | - Daniela Tomasoni
- San Raffaele Telethon Institute for Gene Therapy (HSR-TIGET), Division of Regenerative Medicine, Stem Cells and Gene Therapy, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Monica Emma Gianolini
- San Raffaele Telethon Institute for Gene Therapy (HSR-TIGET), Division of Regenerative Medicine, Stem Cells and Gene Therapy, IRCCS San Raffaele Scientific Institute, Milan, Italy Department of Public Health and Cell Biology, Tor Vergata University, Rome, Italy
| | - Roberta Rizzo
- Department of Medical Sciences, Section of Microbiology, University of Ferrara, Italy
| | - Joël LeMaoult
- Service de Recherches en Hémato-Immunologie, CEA-DSV-DRM, Hôpital Saint-Louis, IUH, Paris, France
| | - Maria-Grazia Roncarolo
- San Raffaele Telethon Institute for Gene Therapy (HSR-TIGET), Division of Regenerative Medicine, Stem Cells and Gene Therapy, IRCCS San Raffaele Scientific Institute, Milan, Italy Vita-Salute San Raffaele University, Milan, Italy
| | - Silvia Gregori
- San Raffaele Telethon Institute for Gene Therapy (HSR-TIGET), Division of Regenerative Medicine, Stem Cells and Gene Therapy, IRCCS San Raffaele Scientific Institute, Milan, Italy
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17
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Gineau L, Luisi P, Castelli EC, Milet J, Courtin D, Cagnin N, Patillon B, Laayouni H, Moreau P, Donadi EA, Garcia A, Sabbagh A. Balancing immunity and tolerance: genetic footprint of natural selection in the transcriptional regulatory region of HLA-G. Genes Immun 2014; 16:57-70. [DOI: 10.1038/gene.2014.63] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 10/04/2014] [Accepted: 10/06/2014] [Indexed: 12/28/2022]
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18
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Castelli EC, Ramalho J, Porto IOP, Lima THA, Felício LP, Sabbagh A, Donadi EA, Mendes-Junior CT. Insights into HLA-G Genetics Provided by Worldwide Haplotype Diversity. Front Immunol 2014; 5:476. [PMID: 25339953 PMCID: PMC4186343 DOI: 10.3389/fimmu.2014.00476] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 09/18/2014] [Indexed: 12/12/2022] Open
Abstract
Human leukocyte antigen G (HLA-G) belongs to the family of non-classical HLA class I genes, located within the major histocompatibility complex (MHC). HLA-G has been the target of most recent research regarding the function of class I non-classical genes. The main features that distinguish HLA-G from classical class I genes are (a) limited protein variability, (b) alternative splicing generating several membrane bound and soluble isoforms, (c) short cytoplasmic tail, (d) modulation of immune response (immune tolerance), and (e) restricted expression to certain tissues. In the present work, we describe the HLA-G gene structure and address the HLA-G variability and haplotype diversity among several populations around the world, considering each of its major segments [promoter, coding, and 3′ untranslated region (UTR)]. For this purpose, we developed a pipeline to reevaluate the 1000Genomes data and recover miscalled or missing genotypes and haplotypes. It became clear that the overall structure of the HLA-G molecule has been maintained during the evolutionary process and that most of the variation sites found in the HLA-G coding region are either coding synonymous or intronic mutations. In addition, only a few frequent and divergent extended haplotypes are found when the promoter, coding, and 3′UTRs are evaluated together. The divergence is particularly evident for the regulatory regions. The population comparisons confirmed that most of the HLA-G variability has originated before human dispersion from Africa and that the allele and haplotype frequencies have probably been shaped by strong selective pressures.
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Affiliation(s)
- Erick C Castelli
- Department of Pathology, School of Medicine of Botucatu, Universidade Estadual Paulista , Botucatu , Brazil
| | - Jaqueline Ramalho
- Department of Pathology, School of Medicine of Botucatu, Universidade Estadual Paulista , Botucatu , Brazil
| | - Iane O P Porto
- Department of Pathology, School of Medicine of Botucatu, Universidade Estadual Paulista , Botucatu , Brazil
| | - Thálitta H A Lima
- Department of Pathology, School of Medicine of Botucatu, Universidade Estadual Paulista , Botucatu , Brazil
| | - Leandro P Felício
- Biological Sciences Institute, Federal University of Goias , Goiânia , Brazil
| | - Audrey Sabbagh
- UMR 216, Institut de Recherche pour le Développement, MERIT , Paris , France ; Faculté de Pharmacie, Université Paris Descartes, Sorbonne Paris Cité , Paris , France
| | - Eduardo A Donadi
- Division of Clinical Immunology, Department of Medicine, School of Medicine of Ribeirão Preto, University of São Paulo , Ribeirão Preto , Brazil
| | - Celso T Mendes-Junior
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo , Ribeirão Preto , Brazil
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Amodio G, Sales de Albuquerque R, Gregori S. New insights into HLA-G mediated tolerance. ACTA ACUST UNITED AC 2014; 84:255-63. [PMID: 25132109 DOI: 10.1111/tan.12427] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Human Leukocyte Antigen G (HLA-G) is a nonclassical HLA class I molecule with well-characterized immunomodulatory activities. HLA-G was first described as a regulatory molecule that allows the fetus to elude the maternal immune response. In the last decade it has become evident that HLA-G is involved in modulating both innate and adaptive immune responses, in maintaining tolerance in autoimmune and inflammatory diseases and after transplantation, and in promoting immune escape in cancer and infectious diseases. HLA-G exerts its modulatory/regulatory functions directly by interacting with specific inhibitory receptors. The expression of HLA-G is finely tuned by genetic variations in the noncoding region of the locus. The recent discovery of dendritic cells-10 (DC-10) as naturally occurring HLA-G-expressing dendritic cells opens new perspectives in the identification of the molecular and cellular mechanisms underlying HLA-G-mediated tolerance. An overview on the HLA-G-mediated inhibition of innate and adaptive immune cells, on the genetic influence on HLA-G expression, and on HLA-G-expressing DC-10 is presented. Moreover, we discuss the central and critical role of DC-10 in the HLA-G-mediated tolerance.
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Affiliation(s)
- G Amodio
- Division of Regenerative Medicine, Stem Cells and Gene Therapy, San Raffaele Telethon Institute for Gene Therapy (HSR-TIGET), IRCCS San Raffaele Scientific Institute, Milan, Italy
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Castelli EC, Veiga-Castelli LC, Yaghi L, Moreau P, Donadi EA. Transcriptional and posttranscriptional regulations of the HLA-G gene. J Immunol Res 2014; 2014:734068. [PMID: 24741620 PMCID: PMC3987962 DOI: 10.1155/2014/734068] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 01/16/2014] [Indexed: 01/20/2023] Open
Abstract
HLA-G has a relevant role in immune response regulation. The overall structure of the HLA-G coding region has been maintained during the evolution process, in which most of its variable sites are synonymous mutations or coincide with introns, preserving major functional HLA-G properties. The HLA-G promoter region is different from the classical class I promoters, mainly because (i) it lacks regulatory responsive elements for IFN-γ and NF-κB, (ii) the proximal promoter region (within 200 bases from the first translated ATG) does not mediate transactivation by the principal HLA class I transactivation mechanisms, and (iii) the presence of identified alternative regulatory elements (heat shock, progesterone and hypoxia-responsive elements) and unidentified responsive elements for IL-10, glucocorticoids, and other transcription factors is evident. At least three variable sites in the 3' untranslated region have been studied that may influence HLA-G expression by modifying mRNA stability or microRNA binding sites, including the 14-base pair insertion/deletion, +3142C/G and +3187A/G polymorphisms. Other polymorphic sites have been described, but there are no functional studies on them. The HLA-G coding region polymorphisms might influence isoform production and at least two null alleles with premature stop codons have been described. We reviewed the structure of the HLA-G promoter region and its implication in transcriptional gene control, the structure of the HLA-G 3'UTR and the major actors of the posttranscriptional gene control, and, finally, the presence of regulatory elements in the coding region.
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Affiliation(s)
- Erick C. Castelli
- Departamento de Patologia, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista (UNESP), 18618-970 Botucatu, SP, Brazil
| | - Luciana C. Veiga-Castelli
- Division of Clinical Immunology, Department of Medicine, School of Medicine of Ribeirao Preto, University of São Paulo (USP), 14049-900 Ribeirão Preto, SP, Brazil
| | - Layale Yaghi
- Alternative Energies and Atomic Energy Commission, Institute of Emerging Diseases and Innovative Therapies, Department of Hematology and Immunology Research, Saint-Louis Hospital, 75010 Paris, France
- Paris-Diderot University, Sorbonne Paris-Cité, UMR E5, University Institute of Hematology, Saint-Louis Hospital, 75010 Paris, France
| | - Philippe Moreau
- Alternative Energies and Atomic Energy Commission, Institute of Emerging Diseases and Innovative Therapies, Department of Hematology and Immunology Research, Saint-Louis Hospital, 75010 Paris, France
- Paris-Diderot University, Sorbonne Paris-Cité, UMR E5, University Institute of Hematology, Saint-Louis Hospital, 75010 Paris, France
| | - Eduardo A. Donadi
- Division of Clinical Immunology, Department of Medicine, School of Medicine of Ribeirao Preto, University of São Paulo (USP), 14049-900 Ribeirão Preto, SP, Brazil
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Sabbagh A, Courtin D, Milet J, Massaro JD, Castelli EC, Migot-Nabias F, Favier B, Rouas-Freiss N, Moreau P, Garcia A, Donadi EA. Association of HLA-G 3' untranslated region polymorphisms with antibody response against Plasmodium falciparum antigens: preliminary results. ACTA ACUST UNITED AC 2014; 82:53-8. [PMID: 23745572 DOI: 10.1111/tan.12140] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 04/08/2013] [Accepted: 05/15/2013] [Indexed: 12/26/2022]
Abstract
Host and Plasmodium interactions result in highly variable clinical phenotypes, partly explained by the nature and level of anti-malarial antibody response. Human leukocyte antigen (HLA)-G can create a tolerogenic environment, allowing parasites to escape from anti-malarial immunity. We performed a family-based association study encompassing 483 Sereer individuals (261 children and their parents), and reported two independent signals at the HLA-G 3' untranslated region associated with antibody response to specific Plasmodium falciparum blood stage antigens, previously associated with malaria protection: (i) +3010G together with +3142C with total IgG and IgG1 against GLURP and (ii) +3196G with IgG3 against MSP2. While these results require further investigation, they suggest for the first time a role of HLA-G in the regulation of humoral immune response in malaria.
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Affiliation(s)
- A Sabbagh
- Institut de Recherche pour le Développement, UMR 216 Mère et enfant face aux infections tropicales, Paris, France.
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22
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Bortolotti D, Gentili V, Rotola A, Di Luca D, Rizzo R. Implication of HLA-G 3′ untranslated region polymorphisms in human papillomavirus infection. ACTA ACUST UNITED AC 2014; 83:113-8. [DOI: 10.1111/tan.12281] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2013] [Revised: 11/29/2013] [Accepted: 12/02/2013] [Indexed: 11/30/2022]
Affiliation(s)
- D. Bortolotti
- Department of Medical Sciences, Section of Microbiology and Medical Genetics; University of Ferrara; Ferrara Italy
| | - V. Gentili
- Department of Medical Sciences, Section of Microbiology and Medical Genetics; University of Ferrara; Ferrara Italy
| | - A. Rotola
- Department of Medical Sciences, Section of Microbiology and Medical Genetics; University of Ferrara; Ferrara Italy
| | - D. Di Luca
- Department of Medical Sciences, Section of Microbiology and Medical Genetics; University of Ferrara; Ferrara Italy
| | - R. Rizzo
- Department of Medical Sciences, Section of Microbiology and Medical Genetics; University of Ferrara; Ferrara Italy
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23
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Worldwide genetic variation at the 3′ untranslated region of the HLA-G gene: balancing selection influencing genetic diversity. Genes Immun 2013; 15:95-106. [DOI: 10.1038/gene.2013.67] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 10/31/2013] [Accepted: 11/12/2013] [Indexed: 11/08/2022]
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Polymorphic sites at the 3' untranslated region of the HLA-G gene are associated with differential hla-g soluble levels in the Brazilian and French population. PLoS One 2013; 8:e71742. [PMID: 24204558 PMCID: PMC3808361 DOI: 10.1371/journal.pone.0071742] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 07/01/2013] [Indexed: 11/19/2022] Open
Abstract
HLA-G molecule has well-recognized tolerogenic properties, and the encoding gene shows lower frequency of polymorphism at the coding region but higher variability at regulatory 5' and 3' untranslated (3'UTR) regions. At least three 3'UTR polymorphic sites have been associated with HLA-G mRNA regulation, including the 14 base pair (14bp) Insertion/Deletion, +3142C-G and +3187A-G. We studied the association of polymorphic sites at 3'UTR (sequencing analysis, encompassing the 14bp Ins-Del/+3003T-C/+3010C-G/+3027C-A/+3035C-T/+3142C-G/+3187A-G/+3196C-G polymorphic sites) with plasma soluble HLA-G levels (sHLA-G, detected by ELISA) in 187 French and 153 Brazilian healthy individuals. Allele and genotype frequencies were closely similar in both populations; however, Brazilians showed a higher HLA-G 3'UTR haplotype diversity. Considering sHLA-G levels in both populations altogether, individuals presenting 14bp Del/Del showed higher levels compared to 14bpIns/Ins genotype (P <0.05); those presenting +3010C/G showed higher levels compared to the +3010C-C genotype (P< 0.05); those presenting +3027C-C showed higher levels than the +3027A-A genotype (P< 0.05); and those bearing +3035C-C showed higher levels compared to the +3035C-T (P < 0.01) and +3035T-T (P < 0.05) genotypes. The analyses of 3'UTR haplotypes showed that UTR-1 (DelTGCCCGC) was associated with higher expression of sHLA-G, whereas UTR-5 (InsTCCTGAC) and UTR-7 (InsTCATGAC) with lower expression and other UTRs (UTR-2/3/4/6) exhibited intermediate levels. Since the differential expression of HLA-G may be beneficial or harmful depending on the underlying condition, the identification of individuals genetically programmed to differentially express HLA-G may help on defining novel strategies to control the immune response against the underlying disorder.
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Santos KE, Lima THA, Felicio LP, Massaro JD, Palomino GM, Silva ACA, Oliveira SF, Sabbagh A, Garcia A, Moreau P, Donadi EA, Mendes-Junior CT, Castelli EC. Insights on the HLA-G Evolutionary History Provided by a Nearby Alu Insertion. Mol Biol Evol 2013; 30:2423-34. [DOI: 10.1093/molbev/mst142] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Tureck LV, Santos LC, Wowk PF, Mattar SB, Silva JS, Magalhães JCM, Roxo VMMS, Bicalho MG. HLA-G 5' URR SNPs and 3' UTR 14-bp insertion/deletion polymorphism in an Afro-Brazilian population from Paraná State. Int J Immunogenet 2013; 41:29-33. [PMID: 23829564 DOI: 10.1111/iji.12068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 04/04/2013] [Accepted: 05/15/2013] [Indexed: 11/28/2022]
Abstract
The present study investigated 23 SNPs in the 5'URR promoter region and the 14 bp ins/del polymorphism at the 3'UTR region of the HLA-G gene in 150 individuals with Afro-Brazilian ancestry. Three haplotypes were found to be the most frequent. Comparing these polymorphisms in other samples, our data suggest that Afro-Brazilians are more similar to the Euro-Brazilians than to Hutterite population.
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Affiliation(s)
- L V Tureck
- Department of Genetics, Laboratory of Immunogenetics and Histocompatibility, Universidade Federal do Paraná, Curitiba, Brazil
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Lucena-Silva N, Teixeira MAG, Ramos ADL, de Albuquerque RS, Diniz GTN, Mendes-Junior CT, Castelli EC, Donadi EA. The +3187A/G HLA-G polymorphic site is associated with polar forms and reactive reaction in leprosy. Mol Genet Genomic Med 2013; 1:123-30. [PMID: 24498610 PMCID: PMC3865579 DOI: 10.1002/mgg3.14] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 05/01/2013] [Accepted: 05/02/2013] [Indexed: 01/16/2023] Open
Abstract
Considering that variability in immune response genes has been associated with susceptibility to leprosy and with disease severity, leprosy presents clinicopathological variants that are highly associated with the immune response, HLA-G has a well-recognized role in the modulation of the immune response, and polymorphisms at the 3′ untranslated region (UTR) of the HLA-G gene may influence HLA-G production, we studied the polymorphic sites at the 3′ UTR of the HLA-G gene in leprosy and their association with disease severity. We evaluated by sequencing analysis the allele, genotype, and haplotype frequencies of the 3′ UTR HLA-G polymorphic sites (14-bpINDEL/+3003C-T/+3010C-G/+3027A-C/+3035C-T/+3142C-G/+3187A-G/+3196C-G) in 146 individuals presenting reactive leprosy from a highly endemic area, and associated with bacillary load and the type of reactive leprosy. A total of 128 healthy subjects were also studied. Allele, genotype, and haplotype frequencies for the 3′ UTR HLA-G polymorphisms in leprosy patients did not differ from those observed in healthy donors. The +3187A allele was responsible for protection against the development of multibacillary leprosy in a dominant model (AA + AG)/GG, OR = 0.11, P = 0.018), and the +3187A allele and +3187A-A genotype were overrepresented in type II reactive leprosy reaction. The effect of genetic factors on leprosy susceptibility may be hidden by environmental components in highly endemic areas. The HLA-G + 3187A polymorphic site, which is related to unstable mRNA production, was associated with the development of polar forms of leprosy and reactive leprosy reaction.
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Affiliation(s)
- N Lucena-Silva
- Departamento de Imunologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz 50670-420, Recife-PE, Brazil ; Laboratório de Biologia Molecular, Departamento de Oncologia Pediátrica, Hospital IMIP 50070-550, Recife-PE, Brazil ; Divisão de Imunologia Clínica, Departamento de Medicina, Escola de Medicina de Ribeirão Preto, Universidade de São Paulo 14040-900, Ribeirão Preto-SP, Brazil
| | - M A G Teixeira
- Departamento de Dermatologia da Universidade de Pernambuco e Centro Integrado de Saúde Amaury de Medeiros, Secretaria de Saúde de Pernambuco 52030-010, Recife-PE, Brazil
| | - A de L Ramos
- Laboratório de Biologia Molecular, Departamento de Oncologia Pediátrica, Hospital IMIP 50070-550, Recife-PE, Brazil
| | - R S de Albuquerque
- Departamento de Imunologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz 50670-420, Recife-PE, Brazil ; Divisão de Imunologia Clínica, Departamento de Medicina, Escola de Medicina de Ribeirão Preto, Universidade de São Paulo 14040-900, Ribeirão Preto-SP, Brazil
| | - G T N Diniz
- Laboratorio de Métodos Quantitativos, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz 50670-420, Recife-PE, Brazil
| | - C T Mendes-Junior
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo 14040-901, Ribeirão Preto-SP, Brazil
| | - E C Castelli
- Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Goias - UFG 74001-970, Goiânia-GO, Brazil
| | - E A Donadi
- Divisão de Imunologia Clínica, Departamento de Medicina, Escola de Medicina de Ribeirão Preto, Universidade de São Paulo 14040-900, Ribeirão Preto-SP, Brazil
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28
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Lucena-Silva N, de Souza VSB, Gomes RG, Fantinatti A, Muniz YCN, de Albuquerque RS, Monteiro ALR, Diniz GTN, Coelho MRCD, Mendes-Junior CT, Castelli EDC, Donadi EA. HLA-G 3' untranslated region polymorphisms are associated with systemic lupus erythematosus in 2 Brazilian populations. J Rheumatol 2013; 40:1104-13. [PMID: 23678155 DOI: 10.3899/jrheum.120814] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE HLA-G has well recognized tolerogenic properties in physiological and nonphysiological conditions. The 3' untranslated region (3'UTR) of the HLA-G gene has at least 3 polymorphic sites (14-bpINS/DEL, +3142C/G, and +3196C/G) described as associated with posttranscriptional influence on messenger RNA production; however, only the 14-bpINS/DEL and +3142C/G sites have been studied in systemic lupus erythematosus (SLE). METHODS We investigated the HLA-G 3'UTR polymorphic sites (14-bpINS/DEL, +3003C/T, +3010C/G, +3027A/C, +3035C/T, +3142C/G, +3187A/G, and +3196C/G) in 190 Brazilian patients with SLE and 282 healthy individuals in allele, genotype, and haplotype analyses. A multiple logistic regression model was used to assess the association of the disease features with the HLA-G 3'UTR haplotypes. RESULTS Increased frequencies were observed of the 14-bpINS (p = 0.053), +3010C (p = 0.008), +3142G (p = 0.006), and +3187A (p = 0.013) alleles, and increased frequencies of the 14-bpINS-INS (p = 0.094), +3010 C-C (p = 0.033), +3142 G-G (p = 0.021), and +3187 A-A (p = 0.035) genotypes. After Bonferroni correction, only the +3142G (p = 0.05) and +3010C (p = 0.06) alleles were overrepresented in SLE patients. The UTR-1 haplotype (14-bpDEL/+3003T/+3010G/+3027C/+3035C/+3142C/+3187G/+3196C) was underrepresented in SLE (pcorr = 0.035). CONCLUSION These results indicate that HLA-G 3'UTR polymorphic sites, particularly +3142G and +3010C alleles, were associated with SLE susceptibility, whereas UTR-1 was associated with protection against development of SLE.
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Affiliation(s)
- Norma Lucena-Silva
- Department of Immunology, Aggeu Magalhães Research Center, Oswaldo Cruz Foundation, Recife-PE, Brazil.
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Association of HLA-G 3'UTR polymorphisms with response to malaria infection: a first insight. INFECTION GENETICS AND EVOLUTION 2013; 16:263-9. [PMID: 23499774 DOI: 10.1016/j.meegid.2013.02.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Revised: 02/21/2013] [Accepted: 02/22/2013] [Indexed: 01/21/2023]
Abstract
Malaria represents one of the most important causes of mortality and morbidity in Africa. Variability in clinical presentation is partly due to host genetic polymorphisms. Among them, human leukocyte antigen (HLA) class I and class II alleles may be responsible for malaria susceptibility; however less is known about the possible role of non classical HLA molecules. Among them, HLA-G is a tolerogenic molecule with immunomodulatory properties, which differs from classical HLA class I molecules by its lower genetic diversity, tissue expression and function. Although primarily associated with maternal-fetal tolerance, HLA-G is now known to be involved in a wide range of physiopathological conditions, such as tumor, autoimmunity, transplantation, inflammation and viral infection by suppressing the function of various immune cells. In this work, we present the first evidence of an association between HLA-G 3'UTR polymorphisms and malaria infection. More precisely, we showed that HLA-G polymorphisms are associated with asymptomatic infection through two parasitological phenotypes, the intensity of Plasmodium falciparum infection and the mean level of parasite density. The allele+3187G and its haplotype (UTR-1, 14bp-Del/3001C/3003T/3010G/3035C/3052C/3142C/3187G/3196C) was associated with lower level of infection under a dominant model, and the haplotype UTR-3 (Del/3001C/3003T/3010C/3035C/3152C/3142G/3187A/3196C) was associated with high levels of infection under a recessive model. In conclusion, although further investigations are on the way to better address the possible involvement of the HLA-G molecule in the control of P. falciparum infection, this work presents the first evidence of an association between HLA-G polymorphisms and malaria infection. Further investigations are on the way to take into account the particularities of African populations.
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Di Cristofaro J, El Moujally D, Agnel A, Mazières S, Cortey M, Basire A, Chiaroni J, Picard C. HLA-G haplotype structure shows good conservation between different populations and good correlation with high, normal and low soluble HLA-G expression. Hum Immunol 2012; 74:203-6. [PMID: 23127550 DOI: 10.1016/j.humimm.2012.10.027] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 09/21/2012] [Accepted: 10/26/2012] [Indexed: 11/30/2022]
Abstract
HLA-G molecule has considerable impact in various clinical fields, therefore many studies attempted to predict its expression based on HLA-G genotype. These studies have focused on polymorphisms in either the coding region or in one of the two untranslated regions (UTR) of the gene. The aim of our study was to determine if HLA-G haplotype defined based on SNPs 5' and 3'UTR could be used to predict soluble HLA-G expression in unstimulated individuals. Our findings showed that HLA-G haplotype structure was well conserved between distant populations and that the defined haplotypes were correlated with high, normal and low HLA-G soluble secretors. In conclusion, we showed that this genotyping strategy based on the use of a few selected SNPs rather than isolated SNP analysis allows reliable HLA-G expression in all populations. This strategy could be useful in a number of clinical settings, e.g., predicting graft compatibility immunogenetic laboratories.
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Graebin P, Veit TD, Alho CS, Dias FS, Chies JAB. Polymorphic variants in exon 8 at the 3' UTR of the HLA-G gene are associated with septic shock in critically ill patients. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2012; 16:R211. [PMID: 23107167 PMCID: PMC3682315 DOI: 10.1186/cc11845] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Accepted: 10/09/2012] [Indexed: 01/24/2023]
Abstract
Introduction Critically ill patients are characterized as individuals hospitalized in the Intensive Care Unit (ICU) and can evolve to sepsis, septic shock or even death. Among others, genetic factors can influence the outcome of critically ill patients. HLA-G is a non-classical class Ib molecule that has limited protein variability, presenting seven isoforms generated by alternative splicing, and presents immunomodulatory properties. Polymorphisms at the 3'UTR are thought to influence HLA-G gene expression. It was previously observed that increased sHLA-G5 levels were predictive of survival among septic shock patients. We assessed the frequencies of 7 polymorphisms in exon 8 at the 3' UTR of HLA-G and associated these variants with different clinical outcomes in critically ill patients. Methods Exon 8 at the 3' UTR of the HLA-G gene from 638 critically ill subjects was amplified by PCR and sequenced. Genotypes were identified using FinchTV software v.1.4.0 and the most probable haplotype constitution of each sample was determined by PHASE software v.2.1. Haplotype frequencies, linkage disequilibrium, heterozygosity test and Hardy-Weinberg Equilibrium were estimated using ARLEQUIN software v.3.5. Results Among all critically ill patients, an association between carriers of the +2960IN_+3142 G_+3187A haplotype and septic shock (P = 0.047) was observed. Septic patients who carried the +2960IN_+3142G_+3187A haplotype presented an increased risk for septic shock (P = 0.031). Conclusions The present study showed, for the first time, an association between polymorphisms in exon 8 at the 3 'UTR of HLA-G gene and outcomes of critically ill patients. These results may be important for understanding the mechanisms involved in evolution to septic shock in critically ill patients.
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