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Laaribi AB, Mehri A, Yahia HB, Chaouch H, Babay W, Letaief A, Ouzari HI, Hannachi N, Boukadida J, Zidi I. Association of HLA-G 3'UTR polymorphisms with hepatitis B virus infection in Tunisian population. Immunol Res 2024:10.1007/s12026-024-09516-2. [PMID: 38970627 DOI: 10.1007/s12026-024-09516-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 07/03/2024] [Indexed: 07/08/2024]
Abstract
Hepatitis B virus (HBV) infection is a major public health burden. The mechanisms of immune evasion during chronic HBV (CHB) infection are poorly understood. Human leukocyte antigen (HLA)-G, an immune checkpoint molecule, plays a crucial role in the tolerance mechanisms of various infectious diseases. The 3' untranslated region (3'UTR), including the HLA-G + 3142 C > G polymorphism (rs1063320) and the 14-pb Ins/Del (rs66554220) has been strongly suggested to influence HLA-G expression. This study conducted a case-control analysis to evaluate the potential correlation between the HLA-G + 3142 C > G polymorphism and HBV infection outcome in a Tunisian cohort. The HLA-G + 3142 C > G polymorphism was analysed by PCR-RFLP in 242 patients with chronic HBV infection (116 males and 126 females), 241 healthy controls (116 males and 125 females), and 100 spontaneously resolved subjects (52 males and 48 females). Patients with chronic HBV infection showed a higher frequency of the + 3142G allele compared to healthy controls and spontaneously resolved subjects (p = 0.001 and p = 0.002, respectively). An association between the + 3142G allele and high HBV DNA levels was observed when HBV patients were stratified based on their HBV DNA levels (p = 0.016). Furthermore, the dominant model (GG + GC vs CC) was associated with liver function parameters, including AST, ALT, and high HBV DNA levels (p = 0.04, p < 0.001 and p = 0.002, respectively). However, there was no significant association found between this polymorphism and the fibrosis stage (p = 0.32). The haplotype analysis, using a subset of previously published data on the HLA-G 14-pb Ins/Del polymorphism, revealed an association between the Ins/G haplotype and chronic HBV infection (H1: InsG, p < 0.001). Our findings suggest that the + 3142G allele is a risk factor for the persistence and progression of HBV infection, while the + 3142C allele serves as a protective allele associated with the spontaneous resolution of the infection. Additionally, the HLA-G 3'UTR haplotype Ins/G is associated with chronic HBV infection in the Tunisian population.
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Affiliation(s)
- Ahmed Baligh Laaribi
- Laboratory of Microorganisms and Active Biomolecules (LR03ES03), Sciences Faculty of Tunis, University of Tunis El Manar, Tunis, Tunisia.
| | - Asma Mehri
- Laboratory of Microorganisms and Active Biomolecules (LR03ES03), Sciences Faculty of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Hamza Ben Yahia
- Laboratory of Microorganisms and Active Biomolecules (LR03ES03), Sciences Faculty of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Houda Chaouch
- Department of Internal Medicine and Infectious Diseases, University Hospital Farhat Hached, Sousse, Tunisia
| | - Wafa Babay
- Laboratory of Microorganisms and Active Biomolecules (LR03ES03), Sciences Faculty of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Amel Letaief
- Department of Internal Medicine and Infectious Diseases, University Hospital Farhat Hached, Sousse, Tunisia
| | - Hadda-Imene Ouzari
- Laboratory of Microorganisms and Active Biomolecules (LR03ES03), Sciences Faculty of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Naila Hannachi
- Laboratory of Microbiology (UR12SP34), Faculty of Medicine, University Hospital Farhat Hached, Sousse, Tunisia
| | - Jalel Boukadida
- Laboratory of Microbiology (UR12SP34), Faculty of Medicine, University Hospital Farhat Hached, Sousse, Tunisia
| | - Ines Zidi
- Laboratory of Microorganisms and Active Biomolecules (LR03ES03), Sciences Faculty of Tunis, University of Tunis El Manar, Tunis, Tunisia
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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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Zhang Y, He S, Yu L, Shi C, Zhang Y, Tang S. Prognostic significance of HLA-G in patients with colorectal cancer: a meta-analysis and bioinformatics analysis. BMC Cancer 2023; 23:1024. [PMID: 37875821 PMCID: PMC10594707 DOI: 10.1186/s12885-023-11522-w] [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: 06/14/2023] [Accepted: 10/13/2023] [Indexed: 10/26/2023] Open
Abstract
PURPOSE Human leukocyte antigen-G (HLA-G) has been reported to be aberrantly expressed in colorectal cancer (CRC); however, its prognostic value remains controversial. Hence, our meta-analysis aims to assess the prognostic value of HLA-G in CRC patients based on published literature and The Cancer Genome Atlas (TCGA) datasets. METHODS A systematic search was conducted on relevant studies retrieved from four electronic databases including PubMed, Embase, Web of Science and Cochrane Library. Hazard ratios (HRs) with 95% confidence intervals (CIs) were recorded to be applied as effective values. Fixed-effects models or random-effects models were applied on the basis of the value of heterogeneity (I 2). Publication bias was analyzed by Begg's and Egger's tests. In addition, the results were validated by using TCGA datasets. RESULTS Thirteen studies comprising 3896 patients were incorporated into this meta-analysis. The pooled results showed that HLA-G expression was significantly associated with poor overall survival (OS) in both the univariate analysis (HR = 1.44, 95% CI: 1.14-1.83, P = 0.002) and the multivariate analysis (HR = 1.55, 95% CI: 1.23-1.95, P < 0.001). Nevertheless, the expression of HLA-G is not related to age, sex, tumor type, tumor differentiation, TNM stage, or distant metastasis but lymph node metastasis. Notably, the prognosis of colorectal cancer was not consistent with the analysis result from TCGA data. CONCLUSION HLA-G expression was significantly related to poor OS in CRC according to the results of our meta-analysis. However, we found that the prognostic significance was inconsistent with our results according to the TCGA data in CRC. Hence, more research is still needed to further illustrate the prognostic role of HLA-G in CRC.
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Affiliation(s)
- Yingying Zhang
- Department of clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China.
| | - Siying He
- Department of clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Lisha Yu
- Department of clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Chao Shi
- Department of clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Yanyue Zhang
- Department of clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Shiyue Tang
- Department of Infectious Diseases, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
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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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Colamatteo A, Fusco C, Micillo T, D'Hooghe T, de Candia P, Alviggi C, Longobardi S, Matarese G. Immunobiology of pregnancy: from basic science to translational medicine. Trends Mol Med 2023; 29:711-725. [PMID: 37331882 DOI: 10.1016/j.molmed.2023.05.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/20/2023] [Accepted: 05/22/2023] [Indexed: 06/20/2023]
Abstract
Embryo implantation failure and spontaneous abortions represent the main causes of infertility in developed countries. Unfortunately, incomplete knowledge of the multiple factors involved in implantation and fetal development keeps the success rate of medically assisted procreation techniques relatively low. According to recent literature, cellular and molecular mechanisms of 'immunogenic tolerance' towards the embryo are crucial to establish an 'anti-inflammatory' state permissive of a healthy pregnancy. In this review we dissect the role played by the immune system in the endometrial-embryo crosstalk, with a particular emphasis towards the fork-head-box-p3 (Foxp3+) CD4+CD25+ regulatory T (Treg) cells and discuss the most recent therapeutic advances in the context of early immune-mediated pregnancy loss.
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Affiliation(s)
- Alessandra Colamatteo
- Treg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", Napoli, Italy
| | - Clorinda Fusco
- Treg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", Napoli, Italy; Laboratorio di Immunologia, Istituto per l'Endocrinologia e l'Oncologia Sperimentale "G. Salvatore", Consiglio Nazionale delle Ricerche, Napoli, Italy
| | - Teresa Micillo
- Treg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", Napoli, Italy
| | - Thomas D'Hooghe
- Global Medical Affairs Fertility, Merck Healthcare KGaA, Darmstadt, Germany; Research Group Reproductive Medicine, Department of Development and Regeneration, Organ Systems, Group Biomedical Sciences, KU Leuven (University of Leuven), Leuven, Belgium; Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Paola de Candia
- Treg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", Napoli, Italy
| | - Carlo Alviggi
- Dipartimento di Sanità Pubblica, Università degli Studi di Napoli "Federico II", Napoli, Italy
| | | | - Giuseppe Matarese
- Treg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", Napoli, Italy; Laboratorio di Immunologia, Istituto per l'Endocrinologia e l'Oncologia Sperimentale "G. Salvatore", Consiglio Nazionale delle Ricerche, Napoli, Italy.
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Bertol BC, Debortoli G, Dias FC, de Araújo JNG, Maia LSM, de Almeida BS, de Figueiredo-Feitosa NL, de Freitas LCC, Castelli EC, Mendes-Junior CT, Silbiger VN, Maciel LMZ, Donadi EA. HLA-G Gene Variability Is Associated with Papillary Thyroid Carcinoma Morbidity and the HLA-G Protein Profile. Int J Mol Sci 2023; 24:12858. [PMID: 37629044 PMCID: PMC10454351 DOI: 10.3390/ijms241612858] [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: 07/16/2023] [Revised: 08/07/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
Human leukocyte antigen (HLA)-G is an immune checkpoint molecule that is highly expressed in papillary thyroid carcinoma (PTC). The HLA-G gene presents several functional polymorphisms distributed across the coding and regulatory regions (5'URR: 5' upstream regulatory region and 3'UTR: 3' untranslated region) and some of them may impact HLA-G expression and human malignancy. To understand the contribution of the HLA-G genetic background in PTC, we studied the HLA-G gene variability in PTC patients in association with tumor morbidity, HLA-G tissue expression, and plasma soluble (sHLA-G) levels. We evaluated 185 PTC patients and 154 healthy controls. Polymorphic sites defining coding, regulatory and extended haplotypes were characterized by sequencing analyses. HLA-G tissue expression and plasma soluble HLA-G levels were evaluated by immunohistochemistry and ELISA, respectively. Compared to the controls, the G0104a(5'URR)G*01:04:04(coding)UTR-03(3'UTR) extended haplotype was underrepresented in the PTC patients, while G0104a(5'URR)G*01:04:01(coding)UTR-03(3'UTR) was less frequent in patients with metastatic and multifocal tumors. Decreased HLA-G tissue expression and undetectable plasma sHLA-G were associated with the G010102a(5'URR)G*01:01:02:01(coding)UTR-02(3'UTR) extended haplotype. We concluded that the HLA-G variability was associated with PTC development and morbidity, as well as the magnitude of the encoded protein expression at local and systemic levels.
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Affiliation(s)
- Bruna C. Bertol
- Postgraduate Program of Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2M9, Canada
| | - Guilherme Debortoli
- Department of Anthropology, University of Toronto at Mississauga, Mississauga, ON L5L 1C6, Canada;
| | - Fabrício C. Dias
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (F.C.D.); (L.S.M.M.); (B.S.d.A.)
| | - Jéssica N. G. de Araújo
- Department of Clinical Analysis and Toxicology, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil; (J.N.G.d.A.); (V.N.S.)
| | - Luana S. M. Maia
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (F.C.D.); (L.S.M.M.); (B.S.d.A.)
| | - Bibiana S. de Almeida
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (F.C.D.); (L.S.M.M.); (B.S.d.A.)
| | - Nathalie L. de Figueiredo-Feitosa
- Division of Endocrinology and Metabolism, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (N.L.d.F.-F.); (L.M.Z.M.)
| | - Luiz Carlos C. de Freitas
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil;
| | - Erick C. Castelli
- Department of Pathology, School of Medicine, São Paulo State University, Botucatu 18618-687, Brazil;
| | - Celso T. Mendes-Junior
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14049-900, Brazil;
| | - Vivian N. Silbiger
- Department of Clinical Analysis and Toxicology, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil; (J.N.G.d.A.); (V.N.S.)
| | - Léa M. Z. Maciel
- Division of Endocrinology and Metabolism, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (N.L.d.F.-F.); (L.M.Z.M.)
| | - Eduardo A. Donadi
- Postgraduate Program of Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (F.C.D.); (L.S.M.M.); (B.S.d.A.)
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De Re V, Tornesello ML, Racanelli V, Prete M, Steffan A. Non-Classical HLA Class 1b and Hepatocellular Carcinoma. Biomedicines 2023; 11:1672. [PMID: 37371767 DOI: 10.3390/biomedicines11061672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
A number of studies are underway to gain a better understanding of the role of immunity in the pathogenesis of hepatocellular carcinoma and to identify subgroups of individuals who may benefit the most from systemic therapy according to the etiology of their tumor. Human leukocyte antigens play a key role in antigen presentation to T cells. This is fundamental to the host's defense against pathogens and tumor cells. In addition, HLA-specific interactions with innate lymphoid cell receptors, such those present on natural killer cells and innate lymphoid cell type 2, have been shown to be important activators of immune function in the context of several liver diseases. More recent studies have highlighted the key role of members of the non-classical HLA-Ib and the transcript adjacent to the HLA-F locus, FAT10, in hepatocarcinoma. The present review analyzes the major contribution of these molecules to hepatic viral infection and hepatocellular prognosis. Particular attention has been paid to the association of natural killer and Vδ2 T-cell activation, mediated by specific HLA class Ib molecules, with risk assessment and novel treatment strategies to improve immunotherapy in HCC.
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Affiliation(s)
- Valli De Re
- Immunopathology and Cancer Biomarkers Unit, Centro di Riferimento Oncologico di Aviano (CRO), Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS), 33081 Aviano, Italy
| | - Maria Lina Tornesello
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", 80131 Naples, Italy
| | - Vito Racanelli
- Department of Interdisciplinary Medicine, School of Medicine, 'Aldo Moro' University of Bari, 70124 Bari, Italy
| | - Marcella Prete
- Department of Interdisciplinary Medicine, School of Medicine, 'Aldo Moro' University of Bari, 70124 Bari, Italy
| | - Agostino Steffan
- Immunopathology and Cancer Biomarkers Unit, Centro di Riferimento Oncologico di Aviano (CRO), Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS), 33081 Aviano, Italy
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8
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Mocci S, Littera R, Chessa L, Campagna M, Melis M, Ottelio CM, Piras IS, Lai S, Firinu D, Tranquilli S, Mascia A, Vacca M, Schirru D, Lecca LI, Rassu S, Cannas F, Sanna C, Carta MG, Sedda F, Giuressi E, Cipri S, Miglianti M, Perra A, Giglio S. A review of the main genetic factors influencing the course of COVID-19 in Sardinia: the role of human leukocyte antigen-G. Front Immunol 2023; 14:1138559. [PMID: 37342325 PMCID: PMC10277491 DOI: 10.3389/fimmu.2023.1138559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 05/23/2023] [Indexed: 06/22/2023] Open
Abstract
Introduction A large number of risk and protective factors have been identified during the SARS-CoV-2 pandemic which may influence the outcome of COVID-19. Among these, recent studies have explored the role of HLA-G molecules and their immunomodulatory effects in COVID-19, but there are very few reports exploring the genetic basis of these manifestations. The present study aims to investigate how host genetic factors, including HLA-G gene polymorphisms and sHLA-G, can affect SARS-CoV-2 infection. Materials and Methods We compared the immune-genetic and phenotypic characteristics between COVID-19 patients (n = 381) with varying degrees of severity of the disease and 420 healthy controls from Sardinia (Italy). Results HLA-G locus analysis showed that the extended haplotype HLA-G*01:01:01:01/UTR-1 was more prevalent in both COVID-19 patients and controls. In particular, this extended haplotype was more common among patients with mild symptoms than those with severe symptoms [22.7% vs 15.7%, OR = 0.634 (95% CI 0.440 - 0.913); P = 0.016]. Furthermore, the most significant HLA-G 3'UTR polymorphism (rs371194629) shows that the HLA-G 3'UTR Del/Del genotype frequency decreases gradually from 27.6% in paucisymptomatic patients to 15.9% in patients with severe symptoms (X2 = 7.095, P = 0.029), reaching the lowest frequency (7.0%) in ICU patients (X2 = 11.257, P = 0.004). However, no significant differences were observed for the soluble HLA-G levels in patients and controls. Finally, we showed that SARS-CoV-2 infection in the Sardinian population is also influenced by other genetic factors such as β-thalassemia trait (rs11549407C>T in the HBB gene), KIR2DS2/HLA-C C1+ group combination and the HLA-B*58:01, C*07:01, DRB1*03:01 haplotype which exert a protective effect [P = 0.005, P = 0.001 and P = 0.026 respectively]. Conversely, the Neanderthal LZTFL1 gene variant (rs35044562A>G) shows a detrimental consequence on the disease course [P = 0.001]. However, by using a logistic regression model, HLA-G 3'UTR Del/Del genotype was independent from the other significant variables [ORM = 0.4 (95% CI 0.2 - 0.7), PM = 6.5 x 10-4]. Conclusion Our results reveal novel genetic variants which could potentially serve as biomarkers for disease prognosis and treatment, highlighting the importance of considering genetic factors in the management of COVID-19 patients.
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Affiliation(s)
- Stefano Mocci
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
- AART-ODV (Association for the Advancement of Research on Transplantation), Cagliari, Italy
| | - Roberto Littera
- AART-ODV (Association for the Advancement of Research on Transplantation), Cagliari, Italy
- Medical Genetics, R. Binaghi Hospital, Local Public Health and Social Care Unit (ASSL) of Cagliari, Cagliari, Italy
| | - Luchino Chessa
- AART-ODV (Association for the Advancement of Research on Transplantation), Cagliari, Italy
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
- Liver Unit, University Hospital, Cagliari, Italy
| | - Marcello Campagna
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Maurizio Melis
- AART-ODV (Association for the Advancement of Research on Transplantation), Cagliari, Italy
| | - Carla Maria Ottelio
- Anesthesia and Intensive Care Unit, R. Binaghi Hospital, Local Public Health and Social Care Unit (ASSL) of Cagliari, Cagliari, Italy
| | - Ignazio S. Piras
- Neurogenomics Division, Translational Genomics Research Institute (TGen), Phoenix, AZ, United States
| | - Sara Lai
- Medical Genetics, R. Binaghi Hospital, Local Public Health and Social Care Unit (ASSL) of Cagliari, Cagliari, Italy
| | - Davide Firinu
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Stefania Tranquilli
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Alessia Mascia
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Monica Vacca
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Daniele Schirru
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Luigi Isaia Lecca
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Stefania Rassu
- Medical Genetics, R. Binaghi Hospital, Local Public Health and Social Care Unit (ASSL) of Cagliari, Cagliari, Italy
| | - Federica Cannas
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Celeste Sanna
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Mauro Giovanni Carta
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Francesca Sedda
- Section of Pathology, Oncology and Molecular Pathology Unit, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Erika Giuressi
- Medical Genetics, R. Binaghi Hospital, Local Public Health and Social Care Unit (ASSL) of Cagliari, Cagliari, Italy
| | - Selene Cipri
- GeneMos-APS (Association for Social Advancement), Reggio Calabria, Italy
| | - Michela Miglianti
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Andrea Perra
- AART-ODV (Association for the Advancement of Research on Transplantation), Cagliari, Italy
- Section of Pathology, Oncology and Molecular Pathology Unit, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Sabrina Giglio
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
- Medical Genetics, R. Binaghi Hospital, Local Public Health and Social Care Unit (ASSL) of Cagliari, Cagliari, Italy
- Centre for Research University Services (CeSAR, Centro Servizi di Ateneo per la Ricerca), University of Cagliari, Monserrato, Italy
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9
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Behaeddin G, Abdelwaheb BO, Wided K, Sonia Y, Iheb T, Sonia Z, Khadija Z, Mohamed H, Sonia H. Association of HLA-G 3' untranslated region indel polymorphism and its serum expression with susceptibility to colorectal cancer. Biomark Med 2023; 17:541-552. [PMID: 37750737 DOI: 10.2217/bmm-2023-0212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023] Open
Abstract
Background: Colorectal cancer (CRC) is a significant global health challenge with increasing incidence and mortality rates in developing countries. Genome-wide association studies have identified new low-penetrance genetic variants linked to CRC. This study aimed to explore the relationship between HLA-G polymorphism and serum expression with CRC. Methodology: In a case-control configuration, standard PCR was used for genotyping HLA-G 3' indel polymorphism and ELISA for quantifying soluble HLA-G in plasma. Results: The study revealed a significant association between the rs371194629 deletion allele and CRC, as well as higher soluble HLA-G levels in CRC patients. Conclusion: These findings suggest that HLA-G could be a promising biomarker for CRC, and further research could lead to improved screening and treatment for more personalized care.
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Affiliation(s)
- Garrach Behaeddin
- NAFS Research laboratory LR12ES05, Faculty of Medicine, University of Monastir, Tunisia
| | - Ben Othmen Abdelwaheb
- NAFS Research laboratory LR12ES05, Faculty of Medicine, University of Monastir, Tunisia
| | - Khamlaoui Wided
- NAFS Research laboratory LR12ES05, Faculty of Medicine, University of Monastir, Tunisia
| | - Yatouji Sonia
- NAFS Research laboratory LR12ES05, Faculty of Medicine, University of Monastir, Tunisia
| | - Toumi Iheb
- NAFS Research laboratory LR12ES05, Faculty of Medicine, University of Monastir, Tunisia
| | - Zaied Sonia
- Department of Oncology, University Hospital Fattouma Bourguiba, Monastir, Tunisia
| | - Zouari Khadija
- Department of Surgery, University Hospital Fattouma Bourguiba, Monastir, Tunisia
| | - Hammami Mohamed
- NAFS Research laboratory LR12ES05, Faculty of Medicine, University of Monastir, Tunisia
| | - Hammami Sonia
- NAFS Research laboratory LR12ES05, Faculty of Medicine, University of Monastir, Tunisia
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10
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Peripheral HLA-G/ILT-2 immune checkpoint axis in acute and convalescent COVID-19 patients. Hum Immunol 2023:S0198-8859(23)00043-5. [PMID: 36925435 PMCID: PMC10011044 DOI: 10.1016/j.humimm.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/24/2023] [Accepted: 03/07/2023] [Indexed: 03/18/2023]
Abstract
The immunosuppressive non-classical human leukocyte antigen-G (HLA-G) can elicits pro-viral activities by down-modulating immune responses. We analysed soluble forms of HLA-G, IL-6 and IL-10 as well as on immune effector cell expression of HLA-G and its cognate ILT-2 receptor in peripheral blood obtained from hospitalised and convalescent COVID-19 patients. Compared with convalescents (N = 202), circulating soluble HLA-G levels (total and vesicular-bound molecules) were significantly increased in hospitalised patients (N = 93) irrespective of the disease severity. During COVID-19, IL-6 and IL-10 levels were also elevated. Regarding the immune checkpoint expression of HLA-G/ILT-2 on peripheral immune effector cells, the frequencies of membrane-bound HLA-G on CD3+ and CD14+ cells were almost identical in patients during and post COVID-19, while the frequency of ILT-2 receptor on CD3+ and CD14+ cells was increased during acute infection. A multi-parametric correlation analysis of soluble HLA-G forms with IL-6, IL-10, activation markers CD25 and CD154, HLA-G, and ILT-2 expression on immune cells revealed a strong positive correlation of soluble HLA-G forms with membrane-bound HLA-G molecules on CD3+/CD14+ cells only in convalescents. During COVID-19, only vesicular-bound HLA-G were positively correlated with the activation marker CD25 on T cells. Thus, our data suggest that the elevated levels of soluble HLA-G in COVID-19 are due to increased expression in organ tissues other than circulating immune effector cells. The concomitant increased expression of soluble HLA-G and ILT-2 receptor frequencies supports the concept that the immune checkpoint HLA-G/ILT-2 plays a role in the immune-pathogenesis of COVID-19.
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11
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Riddell P, Ma J, Lazarte J, Birriel D, Ulahannan A, Ghany R, Delgado D, Rao V, Keshavjee S, Martinu T, Tikkanen J, Juvet SC. Donor and recipient human leukocyte antigen-G polymorphisms modulate the risk of adverse immunologic events following lung transplantation. Am J Transplant 2023; 23:393-400. [PMID: 36695689 DOI: 10.1016/j.ajt.2022.12.008] [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: 07/17/2022] [Revised: 11/21/2022] [Accepted: 12/05/2022] [Indexed: 01/06/2023]
Abstract
The long-term benefits of lung transplantation (LTx) are limited by pathogenic alloimmune responses that drive injury, inflammation, and chronic dysfunction. Human leukocyte antigen-G (HLA-G) plays a key role in the modulation of these pathways. This study assesses the impact of the HLA-G genotype on immunologic risk and survival following LTx. This retrospective cohort study included 289 bilateral LTx. Recipient and donor HLA-G genotypes were analyzed to identify associations with de novo donor-specific antibodies, acute rejection, chronic lung allograft dysfunction, and allograft survival. We further assessed these associations, both individually and in paired analysis, based on a grouped haplotype classification of HLA-G expression. Donor HLA-G single nucleotide polymorphisms were associated with allograft injury, the onset of chronic lung allograft dysfunction following injury, and allograft survival. Recipient HLA-G single nucleotide polymorphisms were associated with allograft injury, cellular rejection, and donor-specific antibody formation. "Low HLA-G expression" donor haplotypes were associated with impaired allograft survival, as were "low HLA-G expression" donor-recipient haplotype pairs. This study provides compelling evidence for the role of HLA-G in modulating immunologic risk after LTx. Our results highlight the importance of both donor and recipient HLA-G genotypes on the overall risk profile and underscore the lasting influence of donor genotype on lung transplant outcomes.
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Affiliation(s)
- Peter Riddell
- Toronto Lung Transplant Program, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Jin Ma
- Biostatistics Research Unit, University Health Network, University of Toronto, Toronto, Canada
| | - Julieta Lazarte
- Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Daniella Birriel
- Toronto Lung Transplant Program, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Ambily Ulahannan
- Toronto Lung Transplant Program, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Rasheed Ghany
- Toronto Lung Transplant Program, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Diego Delgado
- Heart Transplant Program, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Vivek Rao
- Heart Transplant Program, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Shaf Keshavjee
- Toronto Lung Transplant Program, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Tereza Martinu
- Toronto Lung Transplant Program, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Jussi Tikkanen
- Toronto Lung Transplant Program, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Stephen C Juvet
- Toronto Lung Transplant Program, Toronto General Hospital, University Health Network, Toronto, Canada.
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12
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Chen DP, Wang PN, Hour AL, Lin WT, Hsu FP, Wang WT, Tseng CP. The association between genetic variants at 3'-UTR and 5'-URR of HLA-G gene and the clinical outcomes of patients with leukemia receiving hematopoietic stem cell transplantation. Front Immunol 2023; 14:1093514. [PMID: 36911734 PMCID: PMC9995383 DOI: 10.3389/fimmu.2023.1093514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 02/02/2023] [Indexed: 02/25/2023] Open
Abstract
In addition to the classical human leukocyte antigen (HLA) genes, the outcomes of post-hematopoietic stem cell transplantation (HSCT) are associated with human leukocyte antigen (HLA)-related genes and non-HLA genes involved in immune regulation. HLA-G gene plays an important role in immune tolerance, assisting immune escape of tumor cells, and decrease of transplant rejection. In this study, we explored the association of genetic variants at the 3'-untranslated region (3'-UTR) and 5'-upstream regulatory region (5'-URR) of HLA-G gene with the adverse outcomes of patients with leukemia receiving HSCT. The genomic DNAs of 164 patients who had acute leukemia and received HSCT were collected for analysis. Nine single nucleotide polymorphisms (SNPs) and six haplotypes in the 3'-UTR and 27 SNPs and 6 haplotypes in the 5'-URR were selected to investigate their relationship with the development of adverse outcomes for patients receiving HSCT, including mortality, relapse, and graft-versus-host disease. Our results revealed that two SNPs (rs371194629 and rs9380142) and one haplotype (UTR-3) located in the 3'-UTR and two SNPs (rs3823321 and rs1736934) and one haplotype (G0104a) located in the 5'-URR of HLA-G were associated with the occurrence of chronic GVHD or development of any forms of GVHD. No SNP was found to associate with the occurrence of mortality and relapse for patients receiving HSCT. These SNPs and haplotypes may play important roles in regulating immune tolerance of allografts post-HSCT that can be used to predict the risk of poor outcomes after receiving HSCT and giving preventive treatment to patients on time.
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Affiliation(s)
- Ding-Ping Chen
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Po-Nan Wang
- Division of Hematology-Oncology, Department of Internal Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Ai-Ling Hour
- Department of Life Science, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Wei-Tzu Lin
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Fang-Ping Hsu
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Wei-Ting Wang
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Ching-Ping Tseng
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
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13
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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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14
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Hu L, He D, Zeng H. Association of parental HLA-G polymorphisms with soluble HLA-G expressions and their roles on recurrent implantation failure: A systematic review and meta-analysis. Front Immunol 2022; 13:988370. [PMID: 36532068 PMCID: PMC9751038 DOI: 10.3389/fimmu.2022.988370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/14/2022] [Indexed: 12/04/2022] Open
Abstract
Introduction HLA-G plays a central role in immune tolerance at the maternal-fetal interface. The HLA-G gene is characterized by low allelic polymorphism and restricted tissue expression compared with classical HLA genes. HLA-G polymorphism is associated with HLA-G expression and linked to pregnancy complications. However, the association of parental HLA-G polymorphisms with soluble HLA-G (sHLA-G) expression and their roles in recurrent implantation failure (RIF) is unclear. The study aims to systematically review the association of HLA-G polymorphisms with RIF, the association of sHLA-G expression with RIF, and the association of HLA-G polymorphisms with sHLA-G expressions in patients attending in-vitro fertilization (IVF) treatment. Methods Studies that evaluated the association of HLA-G polymorphisms with RIF, the association between sHLA-G expression with RIF, and the association between HLA-G polymorphisms with sHLA-G expressions in patients attending IVF treatment were included. Meta-analysis was performed by random-effect models. Sensitivity analysis was performed by excluding one study each time. Subgroup analysis was performed based on ethnicity. Results HLA-G 14bp ins variant is associated with a lower expression of sHLA-G in seminal or blood plasma of couples attending IVF treatment. The maternal HLA-G*010101 and paternal HLA-G*010102 alleles are associated with RIF risk compared to other alleles. However, single maternal HLA-G 14bp ins/del polymorphism, HLA-G -725 C>G/T polymorphism, or circulating sHLA-G concentration was not significantly associated with RIF in the general population. HLA-G 14bp ins/ins homozygous genotype or ins variant was associated with a higher risk of RIF in the Caucasian population. Discussion Specific HLA-G alleles or HLA-G polymorphisms are associated with sHLA-G expression in couples attending IVF treatment. Several HLA-G polymorphisms may be related to RIF, considering different ethnic backgrounds. A combined genetic effect should be considered in future studies to confirm the association of HLA-G polymorphisms and sHLA-G expressions in relation to RIF.
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Affiliation(s)
- Lian Hu
- Department of Gynecology and Obstetrics, The Fourth Changsha Hospital, Changsha, China
| | - Dongmei He
- Department of Gynecology and Obstetrics, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Hong Zeng
- Department of Reproductive Medicine Center, Foshan Maternal and Child Health Care Hospital, Southern Medical University, Guangzhou, China,Department of Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, China,*Correspondence: Hong Zeng,
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15
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Littera R, Perra A, Miglianti M, Piras IS, Mocci S, Lai S, Melis M, Zolfino T, Balestrieri C, Conti M, Serra G, Figorilli F, Firinu D, Onali S, Matta L, Porcu C, Pes F, Fanni D, Manieli C, Vacca M, Cusano R, Trucas M, Cipri S, Tranquilli S, Rassu S, Cannas F, Carta MG, Kowalik MA, Giuressi E, Faa G, Chessa L, Giglio S. The double-sided of human leukocyte antigen-G molecules in type 1 autoimmune hepatitis. Front Immunol 2022; 13:1007647. [PMID: 36311782 PMCID: PMC9597675 DOI: 10.3389/fimmu.2022.1007647] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 09/27/2022] [Indexed: 11/21/2022] Open
Abstract
The immunomodulatory effects of HLA-G expression and its role in cancers, human liver infections and liver transplantation are well documented, but so far, there are only a few reports addressing autoimmune liver diseases, particularly autoimmune hepatitis (AIH).
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Affiliation(s)
- Roberto Littera
- Medical Genetics, R. Binaghi Hospital, Sardegna, Italy
- AART-ODV (Association for the Advancement of Research on Transplantation), Cagliari, Italy
- *Correspondence: Roberto Littera, ; Andrea Perra, ; Stefano Mocci, ; Luchino Chessa,
| | - Andrea Perra
- AART-ODV (Association for the Advancement of Research on Transplantation), Cagliari, Italy
- Section of Pathology, Oncology and Molecular Pathology Unit, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
- *Correspondence: Roberto Littera, ; Andrea Perra, ; Stefano Mocci, ; Luchino Chessa,
| | - Michela Miglianti
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Ignazio S. Piras
- Neurogenomics Division, Translational Genomics Research Institute (TGen), Phoenix, AZ, United States
| | - Stefano Mocci
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
- *Correspondence: Roberto Littera, ; Andrea Perra, ; Stefano Mocci, ; Luchino Chessa,
| | - Sara Lai
- Medical Genetics, R. Binaghi Hospital, Sardegna, Italy
| | - Maurizio Melis
- AART-ODV (Association for the Advancement of Research on Transplantation), Cagliari, Italy
| | - Teresa Zolfino
- Division of Gastroenterology, Azienda di Rilievo Nazionale ed Alta Specializzazione (ARNAS), S. Michele Hospital, Cagliari, Italy
| | | | - Maria Conti
- Liver Unit, University Hospital, Cagliari, Italy
| | | | - Francesco Figorilli
- Division of Gastroenterology, Azienda di Rilievo Nazionale ed Alta Specializzazione (ARNAS), S. Michele Hospital, Cagliari, Italy
| | - Davide Firinu
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Simona Onali
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Laura Matta
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Carmen Porcu
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Francesco Pes
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Daniela Fanni
- Division of Pathology, Department of Medical Sciences and Public Health, University Hospital San Giovanni di Dio, Cagliari, Italy
| | - Cristina Manieli
- Department of Pathological Anatomy, Azienda di Rilievo Nazionale ed Alta Specializzazione (ARNAS), S. Michele Hospital, Cagliari, Italy
| | - Monica Vacca
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Roberto Cusano
- Biomedical Sector, Center for Advanced Studies, Research and Development (CRS4), Cagliari, Italy
| | - Marcello Trucas
- Section of Pathology, Oncology and Molecular Pathology Unit, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Selene Cipri
- AART-ODV (Association for the Advancement of Research on Transplantation), Cagliari, Italy
| | - Stefania Tranquilli
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | | | - Federica Cannas
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Mauro Giovanni Carta
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Marta Anna Kowalik
- Section of Pathology, Oncology and Molecular Pathology Unit, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | | | - Gavino Faa
- Division of Pathology, Department of Medical Sciences and Public Health, University Hospital San Giovanni di Dio, Cagliari, Italy
| | - Luchino Chessa
- AART-ODV (Association for the Advancement of Research on Transplantation), Cagliari, Italy
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
- Liver Unit, University Hospital, Cagliari, Italy
- *Correspondence: Roberto Littera, ; Andrea Perra, ; Stefano Mocci, ; Luchino Chessa,
| | - Sabrina Giglio
- Medical Genetics, R. Binaghi Hospital, Sardegna, Italy
- AART-ODV (Association for the Advancement of Research on Transplantation), Cagliari, Italy
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
- Centre for Research University Services (CeSAR, Centro Servizi di Ateneo per la Ricerca), University of Cagliari, Monserrato, Italy
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16
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J. Al –Tamimi B, Al-Mayah QS, Abd-Alwahab HS. Study of HLA-G gene polymorphism and serum level of soluble HLA-G in patients infected with Mycobacterium tuberculosis. BIONATURA 2022; 7:1-5. [DOI: 10.21931/rb/2022.07.03.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Abstract
Tuberculosis affects about one-third of the world population. The incidence of the disease differs significantly among populations living under almost similar conditions, indicating the role of genetic factors. The present study aimed to appraise the impact of HLA-G gene polymorphisms and soluble HLA-G on the susceptibility to pulmonary tuberculosis. 48 patients with pulmonary tuberculosis and other 42 age- and sex-matched healthy individuals were included in the study. Both groups evaluated two gene polymorphisms in the HLA-G gene and soluble HLA-G protein. The frequency of Del/Del genotype of rs66554220 (14-bp Ins/Del) polymorphism in patients was 8.33% which was higher than that of controls (2.38%) with a significant difference (crude OR= 9.26, 95%CI=1.06-80.93, p=0.044). Such association remained significant after adjusting for confounding factors, including smoking, family history, socioeconomic status and residence (adjusted OR= 11.83, 95%CI=2.77-50.51, p= 0.01). The median serum level of soluble HLA-G in patients was 34.0 ng/ml (range 6.18-74.25 ng/ml), which was greater than that of controls (median 20 ng/ml, range 312-71.98 ng/ml) with a significant difference. We can conclude that The Del/Del genotype of rs66554220 (14-bp Ins/Del) polymorphism is an independent risk factor for pulmonary tuberculosis in the Iraqi population
Keywords: Mycobacterium tuberculosis, HLA-G gene, single nucleotide polymorphism
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Affiliation(s)
- Bushra J. Al –Tamimi
- Department of Microbiology, College Medicine, University of Babylon, Babylon- Iraq
| | - Qasim S. Al-Mayah
- Medical Research Unit, College of Medicine, Al-Nahrain University, Baghdad- Iraq
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17
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Krop J, Van Der Keur C, Kapsenberg JM, Den Hollander F, Van Der Hoorn MLP, Heidt S, Claas FHJ, Eikmans M. Soluble HLA-G blood levels are not increased during ongoing pregnancy in women with a history of recurrent pregnancy loss. J Reprod Immunol 2022; 153:103665. [PMID: 35905658 DOI: 10.1016/j.jri.2022.103665] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 05/30/2022] [Accepted: 07/11/2022] [Indexed: 11/30/2022]
Abstract
Recurrent pregnancy loss (RPL) affects 1-2 % of couples who are trying to conceive. At some point, some couples do maintain a healthy pregnancy to term, but the underlying mechanism of RPL remains elusive. Human leukocyte antigen (HLA)-G is an immune modulatory molecule. Our group previously showed increased HLA-G levels in the decidua of term pregnancies after RPL, while other studies showed reduced soluble HLA-G (sHLA-G) blood levels in women with RPL. This led us to investigate sHLA-G levels in blood of women with RPL who had either a subsequent pregnancy loss (RPL-pregnancy loss) or a healthy term pregnancy (RPL-live birth), and compare these to healthy control pregnancies and non-pregnant controls. Soluble HLA-G concentrations were quantified by ELISA. Women with healthy term pregnancy had increased sHLA-G levels compared to non-pregnant controls. In contrast, RPL-live birth women at term did not have increased blood sHLA-G levels. Soluble HLA-G levels remained stable between first and third trimester. Interestingly, when comparing first trimester samples of RPL-live birth to RPL-pregnancy loss, sHLA-G levels also did not significantly differ. High sHLA-G levels in blood seem not to be crucial for an ongoing healthy pregnancy after RPL. However, since it was previously shown that women with RPL-live birth have increased HLA-G levels in term decidua compared to control pregnancies, the current data suggest that local and systemic immune regulation are not necessarily in concert. Further study of the contribution of fetus-derived HLA-G and HLA-G of maternal origin may provide more insight in the pathophysiology of RPL.
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Affiliation(s)
- J Krop
- Department of Immunology, Leiden University Medical Centre, Leiden, the Netherlands
| | - C Van Der Keur
- Department of Immunology, Leiden University Medical Centre, Leiden, the Netherlands
| | - J M Kapsenberg
- Department of Immunology, Leiden University Medical Centre, Leiden, the Netherlands
| | - F Den Hollander
- Department of Immunology, Leiden University Medical Centre, Leiden, the Netherlands
| | - M L P Van Der Hoorn
- Department of Obstetrics, Leiden University Medical Centre, Leiden, the Netherlands
| | - S Heidt
- Department of Immunology, Leiden University Medical Centre, Leiden, the Netherlands
| | - F H J Claas
- Department of Immunology, Leiden University Medical Centre, Leiden, the Netherlands
| | - M Eikmans
- Department of Immunology, Leiden University Medical Centre, Leiden, the Netherlands.
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18
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Tizaoui K, Jalouli M, Boujelbene N, Harrath AH, Ouzari H, Rizzo R, Zidi I. The relationship of 3'UTR HLA-G14-bp insertion/deletion and +3142 C/G polymorphisms and soluble HLA-G expression with gynecological cancers: An updated meta-analysis. Immun Inflamm Dis 2022; 10:e645. [PMID: 35759240 PMCID: PMC9168547 DOI: 10.1002/iid3.645] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/10/2022] [Accepted: 05/12/2022] [Indexed: 11/09/2022] Open
Abstract
OBJECTIVES Human leukocyte antigen-G (HLA-G) is implicated in several cancers and is considered to be an immune checkpoint regulator. We determined the association between polymorphisms in the 3' untranslated region of HLA-G and soluble HLA-G (sHLA-G) expression with gynecological cancers (GCs). METHODS A meta-analysis was conducted to examine the association between HLA-G14-bp insertion (I)/deletion (D) and +3142C/G polymorphism in GC and to evaluate sHLA-G expression RESULTS: We revealed a significant association between the +3142C/G polymorphism and invasive cervical cancer (ICC) based on the allelic model G versus C (odds ratio [OR] = 0.738, 95% confidence interval [CI] = 0.563-0.966, p = 0.027), dominant GG+GC versus CC (OR = 0.584, 95% CI = 0.395-0.862, p = 0.007), and codominant GG versus CC (OR = 0.527, 95% CI = 0.312-0.891, p = 0.017) models, suggesting that the G allele and GG genotype are protective against ICC. In gynecological precancerous patients with human papillomavirus (HPV) infection, we found that the 14-bp I/D under the codominant DD versus DI model (OR = 0.492, 95% CI = 0.241-1.004, p = 0.051) was of borderline significance. Soluble HLA-G levels were significantly higher in patients compared with healthy controls (standardized mean differences [SMD] = 1.434, 95% CI = 0.442-2.526, p = 0.005). Stratification by cancer type revealed that the sHLA-G levels were significantly increased in cervical cancer (SMD = 4.889, 95% CI = 0.468-9.310, p = 0.030) and in subjects of Asian ethnicity (SMD = 4.889, 95% CI = 0.467-9.309, p = 0.030). CONCLUSIONS HLA-G14-bp I/D and +3142 C/G polymorphisms are associated with GC and HPV-associated cervical cancer. In addition, we found significantly increased sHLA-G levels in cancer patients. These results provide a basis for further studies in diagnostics and immunotherapy of GC.
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Affiliation(s)
- Kalthoum Tizaoui
- Laboratory Microorganismes and Active Biomolecules, Sciences Faculty of TunisUniversity of Tunis El ManarTunisTunisia
| | - Maroua Jalouli
- Laboratory Microorganismes and Active Biomolecules, Sciences Faculty of TunisUniversity of Tunis El ManarTunisTunisia
- Department of Zoology, College of ScienceKing Saud UniversityRiyadhSaudi Arabia
| | - Nadia Boujelbene
- Laboratory Microorganismes and Active Biomolecules, Sciences Faculty of TunisUniversity of Tunis El ManarTunisTunisia
- Department of PathologySalah Azaiz InstituteTunisTunisia
| | - Abdel Halim Harrath
- Department of Zoology, College of ScienceKing Saud UniversityRiyadhSaudi Arabia
| | - Hadda‐Imene Ouzari
- Laboratory Microorganismes and Active Biomolecules, Sciences Faculty of TunisUniversity of Tunis El ManarTunisTunisia
| | - Roberta Rizzo
- Department of Experimental and Diagnostic Medicine, Section MicrobiologyUniversity of FerraraFerraraItaly
| | - Inès Zidi
- Laboratory Microorganismes and Active Biomolecules, Sciences Faculty of TunisUniversity of Tunis El ManarTunisTunisia
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19
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Liu S, Bos NA, Verschuuren EAM, van Baarle D, Westra J. Biological Characteristics of HLA-G and Its Role in Solid Organ Transplantation. Front Immunol 2022; 13:902093. [PMID: 35769475 PMCID: PMC9234285 DOI: 10.3389/fimmu.2022.902093] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/19/2022] [Indexed: 11/18/2022] Open
Abstract
Organ transplantation is a lifesaving option for patients with advanced diseases. Rejection is regarded as one of the most severe risk factors post-transplantation. A molecule that contributes to immune tolerance and resisting rejection is human leukocyte antigen (HLA)-G, which belongs to the non-classical major histocompatibility complex class (MHC) I family. HLA-G was originally found to play a role during pregnancy to maintain immune tolerance between mother and child. It is expressed in the placenta and detected in several body fluids as soluble factor as well as different membrane isoforms on cells. Recent findings on HLA-G show that it can also play multifaceted roles during transplantation. This review will explain the general characteristics and biological function of HLA-G and summarize the views supporting the tolerogenic and other roles of HLA-G to better understand its role in solid organ transplantation (SOT) and its complications. Finally, we will discuss potential future research on the role of HLA-G in prevention, diagnosis, and treatment in SOT.
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Affiliation(s)
- Siqi Liu
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Nicolaas A. Bos
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Erik A. M. Verschuuren
- Department of Pulmonary Diseases, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Debbie van Baarle
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, Groningen, Netherlands
| | - Johanna Westra
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- *Correspondence: Johanna Westra,
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20
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Eikmans M, van der Keur C, Anholts JDH, Drabbels JJM, van Beelen E, de Sousa Lopes SMC, van der Hoorn ML. Primary Trophoblast Cultures: Characterization of HLA Profiles and Immune Cell Interactions. Front Immunol 2022; 13:814019. [PMID: 35634345 PMCID: PMC9136060 DOI: 10.3389/fimmu.2022.814019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 04/11/2022] [Indexed: 11/29/2022] Open
Abstract
Introduction Trophoblasts are essential in fetal-maternal interaction during pregnancy. The goal was to study HLA profiles of primary trophoblasts derived from placentas, and to investigate their usefulness in studying interaction with immune cells. Methods After enzymatic digestion of first-trimester placental tissue from seven donors (6-9 weeks gestation) and trophoblast enrichment we cultured cytotrophoblasts (CTB) in stem cell medium. CTB were differentiated into EVT in a Matrigel-containing medium. A subset of CTB/EVT was profiled for microRNA levels. Expression of classical HLA molecules and of HLA-G was studied by flow cytometry, qPCR, and ELISA. Secondary trophoblast cell lines JAR and JEG-3 were studied as controls. Lymphocytes were investigated during co-culturing with EVT. Results The trophoblasts could be easily maintained for several passages, upregulated classical trophoblast markers (GATA3, TFAP2C, chromosome-19 microRNAs), and upon differentiation to EVT they were selective in expressing HLA-C. EVT showed increasing expression of total HLA-G, an increasing proportion of HLA-G1 over G2- and G3 isoforms, and elevated excretion of soluble HLA-G. These features were distinct from those of the secondary trophoblast cell lines. TNF-α and IL-8 represented the most abundantly secreted cytokines by CTB, but their levels were minimal in EVT cultures. As proof of principle, we showed that EVT affect lymphocytes in three-day co-cultures (n=4) by decreasing activation marker HLA-DR. Conclusion We verified the possibility culturing trophoblasts from first-term placentas, and their capability of differentiating to HLA-G expressing EVT. This culture model better represents the in-vivo situation than previously studied secondary trophoblast cell lines and enables mechanistic studies of fetal-maternal interactions.
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Affiliation(s)
- Michael Eikmans
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
- *Correspondence: Michael Eikmans,
| | - Carin van der Keur
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | | | - Jos J. M. Drabbels
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Els van Beelen
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
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21
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Matrix Metalloproteinases on Severe COVID-19 Lung Disease Pathogenesis: Cooperative Actions of MMP-8/MMP-2 Axis on Immune Response through HLA-G Shedding and Oxidative Stress. Biomolecules 2022; 12:biom12050604. [PMID: 35625532 PMCID: PMC9138255 DOI: 10.3390/biom12050604] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/08/2022] [Accepted: 04/14/2022] [Indexed: 02/06/2023] Open
Abstract
Patients with COVID-19 predominantly have a respiratory tract infection and acute lung failure is the most severe complication. While the molecular basis of SARS-CoV-2 immunopathology is still unknown, it is well established that lung infection is associated with hyper-inflammation and tissue damage. Matrix metalloproteinases (MMPs) contribute to tissue destruction in many pathological situations, and the activity of MMPs in the lung leads to the release of bioactive mediators with inflammatory properties. We sought to characterize a scenario in which MMPs could influence the lung pathogenesis of COVID-19. Although we observed high diversity of MMPs in lung tissue from COVID-19 patients by proteomics, we specified the expression and enzyme activity of MMP-2 in tracheal-aspirate fluid (TAF) samples from intubated COVID-19 and non-COVID-19 patients. Moreover, the expression of MMP-8 was positively correlated with MMP-2 levels and possible shedding of the immunosuppression mediator sHLA-G and sTREM-1. Together, overexpression of the MMP-2/MMP-8 axis, in addition to neutrophil infiltration and products, such as reactive oxygen species (ROS), increased lipid peroxidation that could promote intensive destruction of lung tissue in severe COVID-19. Thus, the inhibition of MMPs can be a novel target and promising treatment strategy in severe COVID-19.
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22
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Rebmann V, Schwich E, Michita RT, Grüntkemeier L, Bittner AK, Rohn H, Horn PA, Hoffmann O, Kimmig R, Kasimir-Bauer S. Systematic Evaluation of HLA-G 3'Untranslated Region Variants in Locally Advanced, Non-Metastatic Breast Cancer Patients: UTR-1, 2 or UTR-4 are Predictors for Therapy and Disease Outcome. Front Immunol 2022; 12:817132. [PMID: 35095919 PMCID: PMC8790528 DOI: 10.3389/fimmu.2021.817132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 12/13/2021] [Indexed: 12/12/2022] Open
Abstract
Despite major improvements in diagnostics and therapy in early as well as in locally advanced breast cancer (LABC), metastatic relapse occurs in about 20% of patients, often explained by early micro-metastatic spread into bone marrow by disseminated tumor cells (DTC). Although neoadjuvant chemotherapy (NACT) has been a successful tool to improve overall survival (OS), there is growing evidence that various environmental factors like the non-classical human leukocyte antigen-G (HLA-G) promotes cancer invasiveness and metastatic progression. HLA-G expression is associated with regulatory elements targeting certain single-nucleotide polymorphisms (SNP) in the HLA-G 3’ untranslated region (UTR), which arrange as haplotypes. Here, we systematically evaluated the impact of HLA-G 3’UTR polymorphisms on disease status, on the presence of DTC, on soluble HLA-G levels, and on therapy and disease outcome in non-metastatic LABC patients. Although haplotype frequencies were similar in patients (n = 142) and controls (n = 204), univariate analysis revealed that the UTR-7 haplotype was related to patients with low tumor burden, whereas UTR-4 was associated with tumor sizes >T1. Furthermore, UTR-4 was associated with the presence of DTC, but UTR-3 and UTR-7 were related to absence of DTC. Additionally, increased levels of soluble HLA-G molecules were found in patients carrying UTR-7. Regarding therapy and disease outcome, univariate and multivariate analysis highlighted UTR-1 or UTR-2 as a prognostic parameter indicative for a beneficial course of disease in terms of complete response towards NACT or progression-free survival (PFS). At variance, UTR-4 was an independent risk factor for a reduced OS besides already known parameters. Taken into account the most common HLA-G 3’UTR haplotypes (UTR-1–UTR-7, UTR-18), deduction of the UTR-1/2/4 haplotypes to specific SNPs revealed that the +3003C variant, unique for UTR-4, seemed to favor a detrimental disease outcome, while the +3187G and +3196G variants, unique for UTR-1 or UTR-2, were prognostic parameters for a beneficial course of disease. In conclusion, these data suggest that the HLA-G 3’UTR variants +3003C, +3187G, and +3196G are promising candidates for the prediction of therapy and disease outcome in LABC patients.
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Affiliation(s)
- Vera Rebmann
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Esther Schwich
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Rafael Tomoya Michita
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Department of Medicine, Baylor College of Medicine (BCMC), Houston, TX, United States
| | - Lisa Grüntkemeier
- Department of Gynecology and Obstetrics, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Ann-Kathrin Bittner
- Department of Gynecology and Obstetrics, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Hana Rohn
- Department of Infectious Diseases, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Peter A Horn
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Oliver Hoffmann
- Department of Gynecology and Obstetrics, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Rainer Kimmig
- Department of Gynecology and Obstetrics, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Sabine Kasimir-Bauer
- Department of Gynecology and Obstetrics, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
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23
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Piekarska K, Radwan P, Tarnowska A, Wiśniewski A, Krasiński R, Radwan M, Wilczyński JR, Malinowski A, Nowak I. The Association of HLA-G Gene Polymorphism and Its Soluble Form With Male Infertility. Front Immunol 2022; 12:791399. [PMID: 35111159 PMCID: PMC8801424 DOI: 10.3389/fimmu.2021.791399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 12/28/2021] [Indexed: 11/25/2022] Open
Abstract
Successful reproduction depends on many factors. Male factors contribute to infertility in approximately 50% of couples who fail to conceive. Seminal plasma consists of secretions from different accessory glands containing a mixture of various cytokines, chemokines, and growth factors, which together can induce a local immune response that might impact on a male’s as well as a female’s fertility. Human leukocyte antigen (HLA)-G expression has been suggested as an immunomodulatory molecule that influences pregnancy outcome. The HLA-G gene encodes either membrane-bound or/and soluble proteins. The aim of this study was the evaluation of HLA-G polymorphisms and their impact on soluble HLA-G (sHLA-G) production. We tested the HLA-G polymorphism in three positions: rs1632947: c.-964G>A; rs1233334: c.-725G>C/T in the promoter region; rs371194629: c.∗65_∗66insATTTGTTCATGCCT in the 3′ untranslated region. We tested two cohorts of men: 663 who participated in in vitro fertilization (test material was blood or sperm), and 320 fertile controls who possessed children born after natural conception (test material was blood). Since 50% of men visiting assisted reproductive clinics have abnormal semen parameters, we wondered if men with normal sperm parameters differ from those with abnormal parameters in terms of HLA-G polymorphism and secretion of sHLA-G into semen. We found that certain rs1632947-rs1233334-rs371194629 HLA-G haplotypes and diplotypes were associated with male infertility, while others were protective. Normozoospermic men with the A-C-del haplotype and A-C-del/A-C-del diplotype secreted the most sHLA-G into semen (574.1 IU/mL and 1047.0 IU/mL, respectively), while those with the G-C-ins haplotype and G-C-ins/G-C-ins diplotype – the least (80.8 IU/mL and 75.7 IU/mL, respectively). Men with the remaining haplotypes/diplotypes secreted sHLA-G at an intermediate level. However, only in one haplotype, namely G-C-ins, did we observe strong significant differences in the concentration of sHLA-G in the semen of men with teratozoospermia compared to men with normal sperm parameters (p = 0.009). In conclusion, fertile men differ in the profile of HLA-G polymorphism from men participating in IVF. Among all HLA-G haplotypes, the most unfavorable for male fertility is the G-C-ins haplotype, which determines the secretion of the lowest concentration of the soluble HLA-G molecule. This haplotype may reduce sperm parameters.
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Affiliation(s)
- Karolina Piekarska
- Department of Clinical Immunology, Laboratory of Immunogenetics and Tissue Immunology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Paweł Radwan
- Department of Reproductive Medicine, Gameta Hospital, Rzgów, Poland
| | - Agnieszka Tarnowska
- Department of Clinical Immunology, Laboratory of Immunogenetics and Tissue Immunology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Andrzej Wiśniewski
- Department of Clinical Immunology, Laboratory of Immunogenetics and Tissue Immunology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Rafał Krasiński
- Department of Reproductive Medicine, Gameta Hospital, Rzgów, Poland
| | - Michał Radwan
- Department of Reproductive Medicine, Gameta Hospital, Rzgów, Poland.,Faculty of Health Sciences, The State University of Applied Sciences in Płock, Płock, Poland
| | - Jacek R Wilczyński
- Department of Surgical and Oncological Gynecology, Medical University of Łódź, Łódź, Poland
| | - Andrzej Malinowski
- Department of Surgical, Endoscopic and Oncologic Gynecology, Polish Mothers' Memorial Hospital-Research Institute, Łódź, Poland
| | - Izabela Nowak
- Department of Clinical Immunology, Laboratory of Immunogenetics and Tissue Immunology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
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24
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Xu YP, Sun LY, Wang SX, Hong WX. Correlation of Human Leukocyte Antigen-E Genomic Polymorphism with Leukemia and Functional Study of Human Leukocyte Antigen-E Different Type Promoters. DNA Cell Biol 2022; 41:235-244. [PMID: 34986028 DOI: 10.1089/dna.2021.0483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Human leukocyte antigen (HLA)-E is one of the least polymorphic nonclassical major histocompatibility complex (MHC) I genes; its nucleotide variability can affect immune response. In this study, we assess the correlation between HLA-E polymorphism and leukemia and further study the transcriptional activity of promoter variation at nucleotide position-26. A total of 142 healthy blood donors and 111 leukemia patients were collected. The genomic sequence of HLA-E was amplified by high-fidelity reaction system and identified by Sanger and cloning sequencing. The dual luciferase reporter gene assay was used to detect the transcription activity of promoter variation at nucleotide position-26. In the HLA-E genomic sequence results, a total of 16 alleles and 32 genotypes were detected; the HLA-E*01:01:01:06 allele had a significantly lower frequency in leukemia patients than in healthy participants (p = 0.026 < 0.05). And the HLA-E*01:03:02:01, *01:03:02:01 genotype showed the greatest difference in frequency between the two groups of participants (p = 0.028 < 0.05). Eight HLA-E alleles were first reported worldwide in Chinese individuals. The results of the dual luciferase reporter gene experiment showed that the transcription activity of the mutant-type promoter (HLA-E*01:01:01:06 with "T" allele at nucleotide position-26) was significantly lower compared with the wild-type promoter (HLA-E*01:01:01:01 with "G" allele at nucleotide position-26) (p = 0.0242 < 0.05). HLA-E*01:01:01:06 allele has a protective effect against leukemia through decreasing transcription activity by "T" variation at nucleotide position-26.
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Affiliation(s)
- Yun-Ping Xu
- Shenzhen Institution of Transfusion Medicine, Shenzhen Blood Center, Shenzhen, Guangdong, China
| | - Li-Yan Sun
- Shenzhen Institution of Transfusion Medicine, Shenzhen Blood Center, Shenzhen, Guangdong, China
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, China
| | - Song-Xing Wang
- Shenzhen Institution of Transfusion Medicine, Shenzhen Blood Center, Shenzhen, Guangdong, China
| | - Wen-Xu Hong
- Shenzhen Institution of Transfusion Medicine, Shenzhen Blood Center, Shenzhen, Guangdong, China
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25
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Cortelette NA, Souza NDO, Cataldi-Rodrigues L, Arthur C, Stowell SR, Dias-Baruffi M, Guimarães DAM, Ayres LR, Trés Pancoto JA. Functional evaluation of immunoregulatory molecules HLA-G, galectin-1, and IL-10 in people living with HIV. Medicine (Baltimore) 2022; 101:e28489. [PMID: 35029197 PMCID: PMC8758050 DOI: 10.1097/md.0000000000028489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 12/16/2021] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVES Investigate polymorphisms and expressions of human leukocyte antigen-G (HLA-G), galectin-1 (Gal-1), and interleukin-10 (IL-10) in people living with HIV (PLHIV) with and without comorbidities to help understanding the mechanisms involved in triggering these disorders in PLHIV and in their prognosis. DESIGN Here we evaluated the potential correlation between the genetic polymorphism and/or protein levels of HLA-G, Gal-1, and IL-10 with and without comorbidities of PLHIV. METHODS Two hundred HIV patients under antiretroviral treatment (83 with comorbidities and 117 without comorbidities) and 200 healthy individuals (controls) were genotyped, using PCR, for HLA-G 14-base pair polymorphism located at the 3' untranslated region in exon 8 insertion/insertion (Ins/Ins: low HLA-G expression) or deletion/deletion (Del/Del: high HLA-G expression). Soluble levels of HLA-G (sHLA-G), Gal-1, and IL-10 were quantified by enzyme-linked immunosorbet assay. RESULTS HIV patients without comorbidities exhibited higher frequency of 14-base pair Del/Del genotype than HIV patients with comorbidities. As expected, HIV patients Ins/Ins with and without comorbidities produced less sHLA-G than controls. However, HIV patients Del/Del with comorbidities expressed sHLA-G more than controls and HIV patients Del/Del without comorbidities. Interestingly, patients that showed low levels sHLA-G, and presence of comorbidities, exhibited high Gal-1 serum levels. However, an increase in soluble levels of IL-10 in PLHIV was observed when compared to controls, especially in the PLHIV group without comorbidities suggesting, a protective role of IL-10 in the development of comorbidities. CONCLUSIONS These data suggested that the high expression of sHLA-G and IL-10 or Gal-1 could be associated and could be associated with the development or not of comorbidities in PLHIV.
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Affiliation(s)
- Natalia Alves Cortelette
- Department of Pharmaceutical Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Nayana De Oliveira Souza
- Department of Pharmaceutical Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Lilian Cataldi-Rodrigues
- Department of Clinical, Toxicological and Bromatological Analysis, Faculty of Pharmaceutical Sciences of Ribeirão Preto - USP, Ribeirão Preto, São Paulo, Brazil
| | - Connie Arthur
- Center for Transfusion Medicine and Cellular Therapies, Department of Laboratory Medicine and Pathology, Emory University School of Medicine, Atlanta, GA
| | - Sean R. Stowell
- Center for Transfusion Medicine and Cellular Therapies, Department of Laboratory Medicine and Pathology, Emory University School of Medicine, Atlanta, GA
| | - Marcelo Dias-Baruffi
- Department of Clinical, Toxicological and Bromatological Analysis, Faculty of Pharmaceutical Sciences of Ribeirão Preto - USP, Ribeirão Preto, São Paulo, Brazil
| | | | - Lorena Rocha Ayres
- Department of Pharmaceutical Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - João Alexandre Trés Pancoto
- Department of Pharmaceutical Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
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26
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OUP accepted manuscript. Hum Reprod Update 2022; 28:435-454. [DOI: 10.1093/humupd/dmac007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/15/2021] [Indexed: 11/13/2022] Open
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Dhouioui S, Laaribi AB, Boujelbene N, Jelassi R, Ben Salah H, Bellali H, Ouzari HI, Mezlini A, Zemni I, Chelbi H, Zidi I. Association of HLA-G 3'UTR polymorphisms and haplotypes with colorectal cancer susceptibility and prognosis. Hum Immunol 2021; 83:39-46. [PMID: 34763955 DOI: 10.1016/j.humimm.2021.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/23/2021] [Accepted: 10/19/2021] [Indexed: 01/08/2023]
Abstract
Human leukocyte antigen (HLA)-G has been considered as an immune modulator in several types of cancers. Its genetic polymorphisms may potentially affect the risk of developing colorectal cancer (CRC). The overall purpose of this study was to analyze the implication of HLA-G 3'untranslated region (3'UTR) polymorphisms particularly 14 pb insertion/deletion (Ins/Del; rs371194629) and + 3142C/G (rs1063320) in CRC susceptibility and progression. A comparative analysis between patients (N = 233) and controls (N = 241) demonstrated that Del allele (Odds Ratios (OR) = 1.41, 95% CI = 1.091-1.819, p = 0.008), the homozygous Del/Del genotype (OR = 1.80, 95% CI = 1.205-2.664, p = 0.003) and the codominant C/G genotype (OR = 1.59, 95% CI = 1.106-2.272, p = 0.013) were associated to CRC risk. As expected, the DelG haplotype was associated with CRC susceptibility (OR = 1.47, 95% CI = 1.068-2.012, p = 0.018). Assessment of patients' survival by Kaplan-Meier analysis indicated that the Del allele and the homozygous Del/Del genotype were associated with reduced event free survival (EFS) (Respectively, p = 0.009 and p = 0.05). Interestingly, the Del allele and the homozygous Del/Del genotype have been revealed as independent prognostic factors for poor EFS in patients with CRC. Additionally, haplotypes analysis revealed that DelG haplotype was linked with significant increase in CRC risk (log-rank; EFS: p = 0.02). Inversely, the InsC haplotype was associated with a significant reduced CRC risk (log-rank; Overall survival (OS): p < 10-6; EFS: p = 0.01). Multivariate Cox regression analysis revealed that the InsC haplotype was independently associated with significantly longer EFS (p = 0.021, HR = 0.636, 95% CI = 0.433-0.935). These findings support the implication of HLA-G polymorphisms in the CRC susceptibility suggesting HLA-G as a potent prognostic and predictive indicator for CRC. Insight into mechanisms underlying HLA-G polymorphisms could allow for the development of targeted care for CRC patients according to their genetic profile.
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Affiliation(s)
- Sabrine Dhouioui
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Ahmed-Baligh Laaribi
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Nadia Boujelbene
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia; Department of Pathology, Salah Azaïz Institute, Faculty of Medicine, Tunis, Tunisia
| | - Refka Jelassi
- LR11-IPT-06: Laboratory of Medical Parasitology, Biotechnology and Biomolecules, Pasteur Institute of Tunis, Tunis, Tunisia
| | - Hamza Ben Salah
- LR11-IPT-06: Laboratory of Medical Parasitology, Biotechnology and Biomolecules, Pasteur Institute of Tunis, Tunis, Tunisia
| | - Hedia Bellali
- Epidemiology and Public Health Department, Medical Faculty of Tunis. Head of Clinical Epidemiology Department, Habib Thameur Hospital, Tunis, Tunisia
| | - Hadda-Imene Ouzari
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Amel Mezlini
- Department of Medical Oncology, Salah Azaïz Institute, Faculty of Medicine, Tunis, Tunisia
| | - Inès Zemni
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia; Department of Surgical Oncology, Salah Azaïz Institute, Faculty of medicine, Tunis, Tunisia
| | - Hanene Chelbi
- LR11-IPT-06: Laboratory of Medical Parasitology, Biotechnology and Biomolecules, Pasteur Institute of Tunis, Tunis, Tunisia
| | - Inès Zidi
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia.
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HLA-G 14bp Ins/Del Polymorphism in the 3'UTR Region and Acute Rejection in Kidney Transplant Recipients: An Updated Meta-Analysis. ACTA ACUST UNITED AC 2021; 57:medicina57101007. [PMID: 34684043 PMCID: PMC8537269 DOI: 10.3390/medicina57101007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/21/2021] [Accepted: 09/21/2021] [Indexed: 11/17/2022]
Abstract
Background and Objectives: Acute kidney injury (AKI) affects the survival rate of kidney transplant organs and patients. Acute rejection (AR) due to AKI may lead to kidney transplantation failure. It is known that there is a relationship between human leukocyte antigen-G (HLA-G), which is involved in immune regulation, and AR in transplant patients. Moreover, 14-bp insertion/deletion polymorphism in the 3' untranslated region (UTR) region of the HLA-G gene is known to affect HLA-G expression. However, its relationship to AR is still controversial. The aim of this study was to investigate whether HLA-G 14-bp insertion/deletion polymorphism contributed to the development of AR in kidney transplant patients using a meta-analysis. Materials and Methods: To perform our meta-analysis, eligible studies about HLA-G 14-bp insertion/deletion polymorphism and AR were searched in electronic databases until 1 June 2021. Finally, a total of 336 patients with AR and 952 patients without AR in relation to kidney transplantation were analyzed from a total of nine studies. Results: In our results, the Del allele and Ins/Del+Del/Del and Del/Del genotypes significantly increased susceptibility of AR in Asian populations [odds ratio (OR) = 2.359, 95% confidence interval (CI) = 1.568-3.550, p = 3.8 × 10-5; OR = 3.357, 95% CI = 1.769-6.370, p = 0.002; OR = 2.750, 95% CI = 1.354-5.587, p = 0.0052 in each model, respectively]. Conclusions: Evidence of the present results indicate that HLA-G 14-bp insertion/deletion polymorphism is associated with susceptibility to AR in the Asian population.
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Jacovas VC, Michita RT, Bisso-Machado R, Reales G, Tarazona-Santos EM, Sandoval JR, Salazar-Granara A, Chies JAB, Bortolini MC. HLA-G 3'UTR haplotype frequencies in highland and lowland South Native American populations. Hum Immunol 2021; 83:27-38. [PMID: 34563386 DOI: 10.1016/j.humimm.2021.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 08/09/2021] [Accepted: 09/01/2021] [Indexed: 11/30/2022]
Abstract
Human Leukocyte Antigen (HLA)-G participates in several biological processes, including reproduction, vascular remodeling, immune tolerance, and hypoxia response. HLA-G is a potential candidate gene for high altitude adaptation since its expression is modulated in both micro and macro environment under hypoxia and constant cellular stress. Besides the promoter region, the HLA-G 3'untranslated region (UTR) influences HLA-G expression patterns through several post-transcriptional mechanisms. Currently, the 3'UTR genetic diversity in terms of altitude adaptation of Native American populations is still unexplored, particularly at high altitude ecoregions. Here, we evaluated 288 Native Americans from 9 communities located in the Andes [highland (HL); ≥2,500 m (range = 2,838-4,433 m)] and 8 populations located in lowland (LL) regions [<2,500 m (range = 80-431 m); Amazonian tropical forest, Brazilian central plateau, and Chaco] of South America. In total, nine polymorphic sites and ten haplotypes were observed. The most frequent haplotypes (UTR-1, UTR-2, and UTR-3) accounted for ∼ 77% of haplotypes found in LL, while in the HL, the same haplotypes reach ∼ 93%. Also, a remarkable high frequency of putative ancestral UTR-5 haplotype was observed in LL (21.5%), while in HL UTR-2 reaches up to 47%. Further, UTR-2 frequency positively correlates with altitude-related variables, while a negative correlation for UTR-5 was observed. From an evolutionary perspective, we observed a tendency towards balancing selection in HL and LL populations thus suggesting that haplotypes of ancient and more derived alleles may have been co-opted for relatively recent adaptations such as those experienced by modern humans in the highland and lowland of South America. We also discuss how long-term balancing selection can be a reservoir of genetic variants that can be positively selected. Finally, our study provides some pieces of evidence that HLA-G 3'UTR haplotypes may have contributed to high altitude adaptation in the Andes.
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Affiliation(s)
- Vanessa Cristina Jacovas
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Rafael Tomoya Michita
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Human Molecular Genetics Laboratory, Universidade Luterana do Brasil (ULBRA), Canoas, Rio Grande do Sul, Brazil
| | - Rafael Bisso-Machado
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Guillermo Reales
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Eduardo M Tarazona-Santos
- Departamento de Biologia Geral, Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Belo Horizonte, Minas Gerais, Brazil
| | - José Raul Sandoval
- Departamento de Biologia Geral, Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Belo Horizonte, Minas Gerais, Brazil
| | | | - José Artur Bogo Chies
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
| | - Maria Cátira Bortolini
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
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Zhou S, Liu M, Xia Y, Zhang L, Shao L, Wang N, Yu W, Ding N, Zhang K, Liang X. Association of the 3' untranslated region polymorphisms of HLA-G with susceptibility to chronic hepatitis C virus infection in the Chinese population. Hum Immunol 2021; 83:47-52. [PMID: 34556350 DOI: 10.1016/j.humimm.2021.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 08/05/2021] [Accepted: 09/01/2021] [Indexed: 02/08/2023]
Abstract
Hepatitis C virus (HCV) infection is a global health problem. Several previous studies have addressed the role of host single-nucleotide polymorphisms (SNPs) in HCV infection. SNPs in the regulatory region of the human leukocyte antigen G (HLA-G) gene play an important role in several diseases. The objective of this study is to determine the association of HLA-G 3'untranslated region (UTR) polymorphisms with the susceptibility to chronic hepatitis C infection in the Chinese population. HLA-G 3' UTR polymorphisms, which include 14-bp Ins/Del (rs371194629), +3003T/C (rs1707), +3010C/G (rs1710), +3027 A/C (rs17179101), +3035C/T (rs17179108), +3142 G/C (rs1063320), +3187 A/G (rs9380142) and + 3196C/G (rs1610696), were analyzed in 246 patients with chronic hepatitis C infection and 294 healthy individuals. The alleles, genotypes, and haplotypes were compared between chronic hepatitis C-infected subjects and controls using chi-square tests and logistic regression models. After a correction of multiple comparisons by the false discovery rate (FDR), the allele frequency of + 3196C, genotype frequencies of + 3187 AA and + 3196CC and frequency of the UTR-3 haplotype were significantly higher in the patients than in the control group (P < 0.05), whereas the frequencies of UTR-1 and UTR-2 haplotypes were significantly lower in the patients than in the control group (P < 0.05). After a correction of multiple comparisons by FDR, UTR-2 and UTR-3 maintained significant associations with chronic hepatitis C. This study indicates that HLA-G 3'UTR polymorphisms are associated with the susceptibility to chronic hepatitis C infection in the Chinese population. HLA-G 3'UTR may play an important role in risk modulation toward HCV infection.
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Affiliation(s)
- Shihang Zhou
- Department of Blood Group, Dalian Blood Center, Dalian, China
| | - Ming Liu
- Department of Cell Biology, Dalian Medical University, Dalian, China
| | - Yuexin Xia
- Department of Blood Group, Dalian Blood Center, Dalian, China
| | - Li Zhang
- Department of Blood Group, Dalian Blood Center, Dalian, China
| | - Linnan Shao
- Department of Blood Group, Dalian Blood Center, Dalian, China
| | - Ni Wang
- Department of Blood Group, Dalian Blood Center, Dalian, China
| | - Weijian Yu
- Department of Blood Group, Dalian Blood Center, Dalian, China
| | - Nan Ding
- Dalian Sixth People's Hospital Affiliated of Dalian Medical University, Dalian, China
| | - Kaili Zhang
- Department of Cell Biology, Dalian Medical University, Dalian, China
| | - Xiaohua Liang
- Department of Blood Group, Dalian Blood Center, Dalian, China.
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Gulati R, Kavadichanda GC, Mariaselvam CM, Kumar G, Negi VS. Association of HLA-G, HLA-E and HLA-B*27 with susceptibility and clinical phenotype of enthesitis related arthritis (ERA). Hum Immunol 2021; 82:615-620. [PMID: 34183176 DOI: 10.1016/j.humimm.2021.06.006] [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: 12/17/2020] [Revised: 04/27/2021] [Accepted: 06/17/2021] [Indexed: 10/21/2022]
Abstract
We studied the association of Enthesitis related arthritis (ERA) the most common variant of juvenile idiopathic arthritis (JIA) in Asians, with HLA-G and -E polymorphisms. HLA-G (14 bp Ins/Del rs371194629, +3142 rs1063320, +3187 rs9380142) and HLA-E (rs1264457, and rs2844724) polymorphisms were analyzed in 127 patients with ERA and 381 ethnically matched healthy controls with TaqMan 5'-nuclease assay using allele-specific fluorogenic oligonucleotide probes. HLA-G and -E polymorphisms were not found to be associated with susceptibility to ERA. HLA-G +3187 (rs9380142) G allele was associated with hip arthritis (Pc = 0.04, OR = 2.22, 95%CI = 1.07-4.63) and hip deformity (Pc = 0.02, OR = 2.51, 95%CI = 1.16-5.43). HLA-B*27 was positive in 91. HLA-E rs1264457 G and rs2844724 T alleles may be associated with B*27 positivity in ERA. Among HLA-G, -E haplotypes, frequency of -InsGAAC was significantly higher in patients than healthy controls (Pc = 0.003). In conclusion, HLA-G and HLA-E haplotype -InsGAAC may be associated with susceptibility to ERA and HLA-G +3187 rs9380142 A>G polymorphism may be a poor prognostic marker for progression to hip arthritis and deformity in ERA-JIA.
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Affiliation(s)
- Reena Gulati
- Department of Pediatrics, Genetic Services, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India.
| | - G Chengappa Kavadichanda
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
| | - Christina Mary Mariaselvam
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
| | - Gunjan Kumar
- Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
| | - Vir Singh Negi
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
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Neuchel C, Fürst D, Tsamadou C, Schrezenmeier H, Mytilineos J. Extended loci histocompatibility matching in HSCT-Going beyond classical HLA. Int J Immunogenet 2021; 48:299-316. [PMID: 34109752 DOI: 10.1111/iji.12545] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/26/2021] [Accepted: 05/17/2021] [Indexed: 12/20/2022]
Abstract
Unrelated haematopoietic stem cell transplantation (HSCT) has evolved from an experimental protocol to a potentially curative first-line treatment in a variety of haematologic malignancies. The continuous refinement of treatment protocols and supportive care paired with ongoing achievements in the technological field of histocompatibility testing enabled this transformation. Without a doubt, HLA matching is still the foremost criterion for donor selection in unrelated HSCT. However, HSCT-related treatment complications still occur frequently, often resulting in patients suffering severely or even dying as a consequence of such complications. Current literature indicates that other immune system modulating factors may play a role in the setting of HSCT. In this review, we discuss the current clinical evidence of a possible influence of nonclassical HLA antigens HLA-E, HLA-F, and HLA-G as well as the HLA-like molecules MICA and MICB, in HSCT.
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Affiliation(s)
- Christine Neuchel
- Institute of Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Transfusion Service, Baden Wuerttemberg-Hessen, and University Hospital Ulm, Ulm, Germany
- Institute of Transfusion Medicine, University of Ulm, Ulm, Germany
| | - Daniel Fürst
- Institute of Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Transfusion Service, Baden Wuerttemberg-Hessen, and University Hospital Ulm, Ulm, Germany
- Institute of Transfusion Medicine, University of Ulm, Ulm, Germany
| | - Chrysanthi Tsamadou
- Institute of Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Transfusion Service, Baden Wuerttemberg-Hessen, and University Hospital Ulm, Ulm, Germany
- Institute of Transfusion Medicine, University of Ulm, Ulm, Germany
| | - Hubert Schrezenmeier
- Institute of Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Transfusion Service, Baden Wuerttemberg-Hessen, and University Hospital Ulm, Ulm, Germany
- Institute of Transfusion Medicine, University of Ulm, Ulm, Germany
| | - Joannis Mytilineos
- ZKRD - Zentrales Knochenmarkspender-Register für Deutschland, German National Bone Marrow Donor Registry, Ulm, Germany
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Adolf IC, Almars A, Dharsee N, Mselle T, Akan G, Nguma IJ, Nateri AS, Atalar F. HLA-G and single nucleotide polymorphism (SNP) associations with cancer in African populations: Implications in personal medicine. Genes Dis 2021; 9:1220-1233. [PMID: 35873024 PMCID: PMC9293715 DOI: 10.1016/j.gendis.2021.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 05/15/2021] [Accepted: 06/05/2021] [Indexed: 11/30/2022] Open
Abstract
The immune system plays an important role in protecting the body against malignancy. During cancer immunoediting, the immune system can recognize and keep checking the tumor cells by down-expression of some self-molecules or by increasing expression of some novel molecules. However, the microenvironment created in the course of cancer development hampers the immune ability to recognize and destroy the transforming cells. Human Leukocyte Antigen G (HLA-G) is emerging as immune checkpoint molecule produced more by cancer cells to weaken the immune response against them. HLA-G is a non-classical HLA class I molecule which is normally expressed in immune privileged tissues as a soluble or membrane-bound protein. HLA-G locus is highly polymorphic in the non-coding 3′ untranslated region (UTR) and in the 5′ upstream regulatory region (5′ URR). HLA-G expression is controlled by polymorphisms located in these regions, and several association studies between these polymorphic sites and disease predisposition, response to therapy, and/or HLA-G protein expression have been reported. Various polymorphisms are demonstrated to modulate its expression and this is increasingly finding more significance in cancer biology. This review focuses on the relevance of the HLA-G gene and its polymorphisms in cancer development. We highlight population genetics of HLA-G as evidence to espouse the need and importance of exploring potential utility of HLA-G in cancer diagnosis, prognosis and immunotherapy in the currently understudied African population.
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Affiliation(s)
- Ismael Chatita Adolf
- Mbeya College of Health and Allied Sciences, University of Dar es Salaam, Mbeya, P.O Box 608, Tanzania
| | - Amany Almars
- Cancer Genetics & Stem Cell Group, BioDiscovery Institute, Division of Cancer and Stem Cells, School of Medicine, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Nazima Dharsee
- Ocean Road Cancer Institute, Department of Oncology, Dar es Salaam, P.O Box 3592, Tanzania
| | - Teddy Mselle
- Muhimbili University of Health and Allied Sciences, MUHAS Genetic Laboratory, Department of Biochemistry, Dar es Salaam, P.O Box 65001, Tanzania
| | - Gokce Akan
- Muhimbili University of Health and Allied Sciences, MUHAS Genetic Laboratory, Department of Biochemistry, Dar es Salaam, P.O Box 65001, Tanzania
| | - Irene Jeremiah Nguma
- Clinical Oncology Department, Mbeya Zonal Referral Hospital (MZRH), Mbeya P.O Box 419, Tanzania
| | - Abdolrahman S. Nateri
- Cancer Genetics & Stem Cell Group, BioDiscovery Institute, Division of Cancer and Stem Cells, School of Medicine, University of Nottingham, Nottingham, NG7 2UH, UK
- Corresponding author.
| | - Fatmahan Atalar
- Muhimbili University of Health and Allied Sciences, MUHAS Genetic Laboratory, Department of Biochemistry, Dar es Salaam, P.O Box 65001, Tanzania
- Child Health Institute, Department of Rare Diseases, Istanbul University, Istanbul 34093, Turkey
- Corresponding author. Muhimbili University of Health and Allied Sciences, MUHAS Genetic Laboratory, Department of Biochemistry, P.O Box 65001, Dar es Salaam, Tanzania.
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34
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Sonon P, Tokplonou L, Sadissou I, M'po KKG, Glitho SSC, Agniwo P, Ibikounlé M, Souza AS, Massaro JD, Gonzalez D, Tchégninougbo T, Ayitchédji A, Massougbodji A, Moreau P, Garcia A, Milet J, Sabbagh A, Mendes-Junior CT, Moutairou KA, Castelli EC, Courtin D, Donadi EA. Human leukocyte antigen (HLA)-F and -G gene polymorphisms and haplotypes are associated with malaria susceptibility in the Beninese Toffin children. INFECTION GENETICS AND EVOLUTION 2021; 92:104828. [PMID: 33781967 DOI: 10.1016/j.meegid.2021.104828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 02/05/2021] [Accepted: 03/24/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Little attention has been devoted to the role of the immunoregulatory HLA-E/-F/-G genes in malaria. We evaluated the entire HLA-E/-F/-G variability in Beninese children highly exposed to Plasmodium falciparum (P.f.) malaria. METHODS 154 unrelated children were followed-up for six months and evaluated for the presence and number of malaria episodes. HLA-E/-F/-G genes were genotyped using massively parallel sequencing. Anti P.f. antibodies were evaluated using ELISA. RESULTS Children carrying the G allele at HLA-F (-1499,rs183540921) showed increased P.f. asymptomatic/symptomatic ratio, suggesting that these children experienced more asymptomatic P.f. episodes than symptomatic one. Children carrying HLA-G-UTR-03 haplotype exhibited increased risk for symptomatic P.f. episodes and showed lower IgG2 response against P.f. GLURP-R2 when compared to the non-carriers. No associations were observed for the HLA-E gene. CONCLUSION HLA-F associations may be related to the differential expression profiles of the encoded immunomodulatory molecules, and the regulatory sites at the HLA-G 3'UTR may be associated to posttranscriptional regulation of HLA-G and to host humoral response against P.f.
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Affiliation(s)
- Paulin Sonon
- Post-graduate Program in Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes, 3900, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil; Immunogenetic Laboratory, Immunology Department, Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Av. Moraes rego, s/n, Campus da UFPE, Cidade Universitária, 50670420 Recife, PE, 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, Bénin; Université de Paris, UMR 261 MERIT, IRD, F-75006 Paris, France; Département de Zoologie, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Bénin
| | - Ibrahim Sadissou
- Post-graduate Program in Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes, 3900, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil; Intertryp, IRD, Cirad, University of Montpellier, Avenue Agropolis, 34398 Montpellier Cedex 5, France
| | - 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, Bénin; Département de Zoologie, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Bénin
| | - 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, Bénin; Département de Zoologie, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Bénin
| | - 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, Bénin; Département de Zoologie, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Bénin
| | - Moudachirou Ibikounlé
- Département de Zoologie, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Bénin
| | - Andréia S Souza
- São Paulo State University (UNESP), School of Medicine, Molecular Genetics and Bioinformatics Laboratory, Av. Prof. Dr. Walter Maurício Correa, s/n, 1861868, Botucatu, SP, Brazil
| | - Juliana Doblas Massaro
- Post-graduate Program in Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes, 3900, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil
| | - Daniel Gonzalez
- Université de Paris, UMR 261 MERIT, IRD, F-75006 Paris, France
| | | | | | - 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, Bénin
| | - Philippe Moreau
- CEA, DRF-Institut François Jacob, Service de Recherches en Hémato-Immunologie, Hopital Saint-Louis, 75010 Paris, France; Université de Paris, CEA, U976 HIPI Unit (Human Immunology, Physiopathology, Immunotherapy), Institut de Recherche Saint-Louis, 75010 Paris, France
| | - André Garcia
- Université de Paris, UMR 261 MERIT, IRD, F-75006 Paris, France
| | | | - Audrey Sabbagh
- Université de Paris, UMR 261 MERIT, IRD, F-75006 Paris, France
| | - Celso T Mendes-Junior
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, AV Bandeirantes, 3900, 14040901 Ribeirão Preto, SP, Brazil
| | - Kabirou A Moutairou
- Laboratoire de Biologie et Physiologie Cellulaire, Université d'Abomey-Calavi, Cotonou, Bénin
| | - Erick C Castelli
- São Paulo State University (UNESP), School of Medicine, Molecular Genetics and Bioinformatics Laboratory, Av. Prof. Dr. Walter Maurício Correa, s/n, 1861868, Botucatu, SP, Brazil; São Paulo State University (UNESP), Department of Pathology, School of Medicine, Botucatu, State of São Paulo, SP, Brazil
| | - David Courtin
- Université de Paris, UMR 261 MERIT, IRD, F-75006 Paris, France
| | - Eduardo A Donadi
- Post-graduate Program in Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes, 3900, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil.
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Almeida RS, Ferreira MLB, Sonon P, Cordeiro MT, Sadissou I, Diniz GTN, Militão-Albuquerque MDFP, Franca RFDO, Donadi EA, Lucena-Silva N. Cytokines and Soluble HLA-G Levels in the Acute and Recovery Phases of Arbovirus-Infected Brazilian Patients Exhibiting Neurological Complications. Front Immunol 2021; 12:582935. [PMID: 33776990 PMCID: PMC7994272 DOI: 10.3389/fimmu.2021.582935] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 01/08/2021] [Indexed: 12/19/2022] Open
Abstract
Severe neurological complications following arbovirus infections have been a major concern in seasonal outbreaks, as reported in the Northeast region of Brazil, where the same mosquito transmitted Zika (ZIKV), Dengue (DENV), and Chikungunya (CHIKV) viruses. In this study, we evaluated the levels of 36 soluble markers, including cytokines, chemokines, growth factors, and soluble HLA-G (Luminex and ELISA) in: i) serum and cerebrospinal fluid (CSF), during the acute phase and two years after the infection (recovery phase, only serum), ii) the relationship among all soluble molecules in serum and CSF, and iii) serum of infected patients without neurological complications, during the acute infection. Ten markers (sHLA-G, IL-10, IL-22, IL-8, MIP-1α, MIP-1β, MCP-1, HGF, VEGF, and IL-1RA) exhibited differential levels between the acute and recovery phases, with pronounced increases in MIP-1α (P<0.0001), MCP-1 (P<0.0001), HGF (P= 0.0001), and VEGF (P<0.0001) in the acute phase. Fourteen molecules (IL-1β, IL-2, IL-3, IL-4, IL-5, IL-6, IL-7, IL-9, IL-13, IL-15, IL-17A, IFN-α, TNF, and G-CSF) exhibited distinct levels between arbovirus patients presenting or not neurological complications. IL-8, EGF, IL-6, and MCP-1 levels were increased in CSF, while RANTES and Eotaxin levels were higher in serum. Soluble serum (IL-22, RANTES, Eotaxin) and CSF (IL-8, EGF, IL-3) mediators may discriminate putative risks for neurological complications following arbovirus infections. Neurological complications were associated with the presence of a predominant inflammatory profile, whereas in non-complicated patients an anti-inflammatory profile may predominate. Mediators associated with neuroregeneration (EGF and IL-3) may be induced in response to neurological damage. Broad spectrum immune checkpoint molecules (sHLA-G) interact with cytokines, chemokines, and growth factors. The identification of soluble markers may be useful to monitor neurological complications and may aid in the development of novel therapies against neuroinflammation.
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Affiliation(s)
- Renata Santos Almeida
- Laboratory of Immunogenetics, Department of Immunology, Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Recife, Brazil
| | | | - Paulin Sonon
- Laboratory of Immunogenetics, Department of Immunology, Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Recife, Brazil.,Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Marli Tenório Cordeiro
- Department of Virology and Experimental Therapy, Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Recife, Brazil
| | - Ibrahim Sadissou
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - George Tadeu Nunes Diniz
- Department of Collective Health, Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Recife, Brazil
| | | | | | | | - Norma Lucena-Silva
- Laboratory of Immunogenetics, Department of Immunology, Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Recife, Brazil
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Bu X, Zhong J, Li W, Cai S, Gao Y, Ping B. Immunomodulating functions of human leukocyte antigen-G and its role in graft-versus-host disease after allogeneic hematopoietic stem cell transplantation. Ann Hematol 2021; 100:1391-1400. [PMID: 33709198 PMCID: PMC8116272 DOI: 10.1007/s00277-021-04486-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 03/02/2021] [Indexed: 11/28/2022]
Abstract
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a potentially curative therapeutic strategy to treat several hematological malignancies and non-hematological malignancies. However, graft-versus-host disease (GVHD) is a frequent and serious transplant-related complication which dramatically restrains the curative effect of allo-HSCT and a significant cause of morbidity and mortality in allogeneic HCT recipients. Effective prevention of GVHD mainly depends on the induction of peripheral immune tolerance. Human leukocyte antigen-G (HLA-G) is a non-classical MHC class I molecule with a strong immunosuppressive function, which plays a prominent role in immune tolerance. HLA-G triggers different reactions depending on the activation state of the immune cells and system. It also exerts a long-term immune tolerance mechanism by inducing regulatory cells. In this present review, we demonstrate the immunomodulatory properties of human leukocyte antigen-G and highlight the role of HLA-G as an immune regulator of GVHD. Furthermore, HLA-G could also serve as a good predictor of GVHD and represent a new therapeutic target for GVHD.
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Affiliation(s)
- Xiaoyin Bu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Jinman Zhong
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Weiru Li
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Shengchun Cai
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Ya Gao
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.
| | - Baohong Ping
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China. .,Department of Huiqiao, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.
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Johnsen GM, Fjeldstad HES, Drabbels JJM, Haasnoot GW, Eikmans M, Størvold GL, Alnaes-Katjavivi P, Jacobsen DP, Scherjon SA, Redman CWG, Claas FHJ, Staff AC. A possible role for HLA-G in development of uteroplacental acute atherosis in preeclampsia. J Reprod Immunol 2021; 144:103284. [PMID: 33578175 DOI: 10.1016/j.jri.2021.103284] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 12/09/2020] [Accepted: 01/26/2021] [Indexed: 12/18/2022]
Abstract
HLA-G, a non-classical HLA molecule expressed by extravillous trophoblasts, plays a role in the maternal immune tolerance towards fetal cells. HLA-G expression is regulated by genetic polymorphisms in the 3' untranslated region (3'UTR). Low levels of HLA-G in the maternal circulation and placental tissue are linked to preeclampsia. Our objective was to investigate whether variants of the 3'UTR of the HLA-G gene in mother and fetus are associated with acute atherosis, a pregnancy specific arterial lesion of the decidua basalis that is prevalent in preeclampsia. Paired maternal and fetal DNA samples from 83 normotensive and 83 preeclamptic pregnancies were analyzed. We sequenced the part of the HLA-G 3'UTR containing a 14-bp insertion/deletion region and seven single nucleotide polymorphisms (SNPs). Associations with acute atherosis were tested by logistic regression. The frequency of heterozygosity for the 14-bp polymorphism (Ins/Del) and the +3142 SNP (C/G) variant in the fetus are associated with acute atherosis in preeclampsia (66.7 % vs. 39.6 %, p = 0.039, and 69.0 % vs. 43.4 %, p = 0.024). Furthermore, the fetal UTR-3 haplotype, which encompasses the 14-bp deletion and the +3142G variant, is associated with acute atherosis in preeclampsia (15 % vs. 3.8 %, p = 0.016). In conclusion, HLA-G polymorphisms in the fetus are associated with acute atherosis. We hypothesize that these polymorphisms lead to altered HLA-G expression in the decidua basalis, affecting local feto-maternal immune tolerance and development of acute atherosis.
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Affiliation(s)
- Guro M Johnsen
- Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Norway; Division of Obstetrics and Gyneacology, Oslo University Hospital, Norway; Institute for Experimental Medical Research, Oslo University Hospital, Norway.
| | - Heidi E S Fjeldstad
- Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Norway; Division of Obstetrics and Gyneacology, Oslo University Hospital, Norway
| | - Jos J M Drabbels
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Netherlands
| | - Geert W Haasnoot
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Netherlands
| | - Michael Eikmans
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Netherlands
| | - Gro L Størvold
- Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Norway; Division of Obstetrics and Gyneacology, Oslo University Hospital, Norway; Institute for Experimental Medical Research, Oslo University Hospital, Norway
| | | | - Daniel P Jacobsen
- Division of Obstetrics and Gyneacology, Oslo University Hospital, Norway
| | - Sicco A Scherjon
- Department of Obstetrics and Gynecology, University of Groningen, Netherlands
| | | | - Frans H J Claas
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Netherlands
| | - Anne Cathrine Staff
- Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Norway; Division of Obstetrics and Gyneacology, Oslo University Hospital, Norway
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38
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Vicente LDM, Castelli EC, Veronese Rodrigues MDL, Deghaide NHS, Mendes-Junior CT, Furtado JM, Donadi EA. Variability at the 3' untranslated region of the HLA-G gene: a study on patients with AIDS and cytomegalovirus retinochoroiditis. Sci Rep 2020; 10:18646. [PMID: 33122781 PMCID: PMC7596709 DOI: 10.1038/s41598-020-75639-9] [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: 12/17/2019] [Accepted: 10/07/2020] [Indexed: 11/10/2022] Open
Abstract
Cytomegalovirus retinochoroiditis (CMV-R) is the primary cause of blindness among AIDS patients. Since HLA-G is associated with the modulation of the immune response, we hypothesized that variability at the 3′ untraslated region (3′UTR) of the gene could be implicated on the predisposition to CMV-R. We evaluated whether HLA-G 3′UTR influences CMV-R development in Brazilian AIDS patients. Peripheral blood DNA was obtained from two groups of patients: (1) AIDS exhibiting CMV-R (n = 40) and (2) AIDS without CMV-R (n = 147). HLA-G 3′UTR typing was performed using sequencing analysis. Allele, genotype and haplotype frequencies were evaluated using Fisher’s exact test accompanied by the calculation of the odds ratio and its 95% confidence interval (95% CI). The etiologic (EF) and preventive fractions were also estimated. Compared to AIDS patients without CMV-R, AIDS patients with CMV-R showed increased frequencies of the: (1) + 3001T allele, (2) the + 3001C/T genotype and (3) the UTR-17 (InsTTCCGTGACG) haplotype (EFs = 0.02–0.04). The UTR-3 (DelTCCGCGACG) haplotype was associated with protection against CMV-R development. Although the risk for developing CMR-V at the population level was relatively low (EF), the identification of HLA-G 3′UTR variation sites may help to further evaluate the role of post-transcriptional factors that may contribute to the existent immunosuppresion caused by HIV per se.
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Affiliation(s)
- Luciana de Morais Vicente
- Ophthalmology Division, Departament of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
| | - Erick C Castelli
- Pathology Department, School of Medicine, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Maria de Lourdes Veronese Rodrigues
- Ophthalmology Division, Departament of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil.
| | - Neifi Hassan Saloum Deghaide
- Ophthalmology Division, Departament of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
| | - Celso Teixeira Mendes-Junior
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - João M Furtado
- Ophthalmology Division, Departament of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
| | - Eduardo Antonio Donadi
- Clinical Immunology Division, Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
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39
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Nilsson LL, Scheike T, Langkilde CH, Jørgensen N, Hornstrup MB, Perin TL, Funck T, Lindhard A, Hviid TVF. Examining extended human leukocyte antigen-G and HLA-F haplotypes: the HLA-G UTR-4 haplotype is associated with shorter time to pregnancy in an infertility treatment setting when both female and male partners are carriers. Fertil Steril 2020; 114:628-639. [DOI: 10.1016/j.fertnstert.2020.04.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 04/11/2020] [Accepted: 04/21/2020] [Indexed: 02/06/2023]
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40
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Amodio G, Gregori S. HLA-G Genotype/Expression/Disease Association Studies: Success, Hurdles, and Perspectives. Front Immunol 2020; 11:1178. [PMID: 32733439 PMCID: PMC7360675 DOI: 10.3389/fimmu.2020.01178] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 05/13/2020] [Indexed: 01/20/2023] Open
Abstract
The non-classical HLA-G is a well-known immune-modulatory molecule. In physiological condition, HLA-G surface expression is restricted to the maternal–fetal interface and to immune-privileged adult tissues, whereas soluble forms of HLA-G are detectable in various body fluids. HLA-G can be de novo expressed in pathological conditions including tumors, chronic infections, or after allogeneic transplantation. HLA-G exerts positive effects modulating innate and adaptive immune responses and promoting tolerance, or detrimental effects inducing immune escape mechanisms. HLA-G locus, in contrast to classical HLA class I gene, is highly polymorphic in the non-coding 3′ untranslated region (UTR) and in the 5′ upstream regulatory region (5′ URR). Variability in these regions influences HLA-G expression by modifying mRNA stability or allowing posttranscriptional regulation in the case of 3′ UTR or by sensing the microenvironment and responding to specific stimuli in the case of HLA-G promoter regions (5′ URR). The influence of genetic variations on the expression of HLA-G makes it an attractive biomarker to monitor disease predisposition and progression, or response to therapy. Here, we summarize the current knowledge, efforts, and obstacles to generate a general consensus on the correlation between HLA-G genetic variability, protein expression, and disease predisposition. Moreover, we discuss perspectives for future investigation on HLA-G genotype/expression in association with disease predisposition and progression.
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Affiliation(s)
- Giada Amodio
- Mechanisms of Peripheral Tolerance Unit, San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Silvia Gregori
- Mechanisms of Peripheral Tolerance Unit, San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
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41
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Bertol BC, Dias FC, Debortoli G, Souto BM, Mendonça PB, Araújo RC, Santana RC, Ramalho LNZ, Castelli EC, Martinelli ADLC, Mendes-Junior CT, Carosella ED, Donadi EA, Moreau P. HLA-G liver expression and HLA-G extended haplotypes are associated with chronic hepatitis C in HIV-negative and HIV-coinfected patients. Clin Immunol 2020; 217:108482. [PMID: 32470543 DOI: 10.1016/j.clim.2020.108482] [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] [Received: 10/10/2019] [Revised: 03/05/2020] [Accepted: 05/25/2020] [Indexed: 02/07/2023]
Abstract
Chronic hepatitis C virus (HCV) infection induces liver damage and the HCV/Human Immunodeficiency Virus (HIV)-coinfection may further contribute to its progression. The HLA-G molecule inhibits innate and adaptive immunity and may be deleterious for chronically virus-infected cells. Thus we studied 204 HCV-mono-infected patients, 142 HCV/HIV-coinfected patients, 104 HIV-mono-infected patients and 163 healthy subjects. HLA-G liver expression was similarly induced in HCV and HCV/HIV specimens, increasing with advanced fibrosis and necroinflammatory activity, and with increased levels of liver function-related enzymes. Plasma soluble HLA-G (sHLA-G) levels were higher in HCV/HIV patients compared to HCV, HIV and to healthy individuals. sHLA-G continued to be higher in coinfected patients even after stratification of samples according to degree of liver fibrosis and necroinflammatory activity when compared to mono-infected patients. Some HLA-G gene haplotypes differentiated patient groups and presented few associations with liver and plasma HLA-G expression. HLA-G thus may help to distinguish patient groups.
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Affiliation(s)
- Bruna Cristina Bertol
- Postgraduate Program of Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo, 3900 Bandeirantes Avenue, 14049-900 Ribeirão Preto, Brazil
| | - Fabrício César Dias
- Department of Medicine, Division of Clinical Immunology, Ribeirão Preto Medical School, University of São Paulo, 3900 Bandeirantes Avenue, 14049-900 Ribeirão Preto, Brazil; 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, 1 Avenue Claude Vellefaux, 75475 Paris, France; Université Paris-Diderot, UMR 976 HIPI, Institut de Recherche Saint-Louis, 1 Avenue Claude Vellefaux, 75475 Paris, France
| | - Guilherme Debortoli
- Postgraduate Program of Genetics, Ribeirão Preto Medical School, University of São Paulo, 3900 Bandeirantes Avenue, 14049-900 Ribeirão Preto, Brazil
| | - Bruno Mendes Souto
- Department of Medicine, Division of Clinical Immunology, Ribeirão Preto Medical School, University of São Paulo, 3900 Bandeirantes Avenue, 14049-900 Ribeirão Preto, Brazil
| | - Priscila Baptista Mendonça
- Department of Medicine, Division of Clinical Immunology, Ribeirão Preto Medical School, University of São Paulo, 3900 Bandeirantes Avenue, 14049-900 Ribeirão Preto, Brazil
| | - Roberta Chaves Araújo
- Department of Medicine, Division of Gastroenterology, Ribeirão Preto Medical School, University of São Paulo, 3900 Bandeirantes Avenue, 14049-900 Ribeirão Preto, Brazil
| | - Rodrigo Carvalho Santana
- Department of Medicine, Division of Infectious and Tropical Diseases, Ribeirão Preto Medical School, University of São Paulo, 3900 Bandeirantes Avenue, 14049-900, Ribeirão Preto, Brazil
| | - Leandra Náira Zambelli Ramalho
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, 3900 Bandeirantes Avenue, 14049-900 Ribeirão Preto, Brazil
| | - Erick Cruz Castelli
- São Paulo State University, Department of Pathology, School of Medicine, Av. Dr. Mario Rubens Guimarães Montenegro, 18618-687 Botucatu, Brazil
| | - Ana de Lourdes Candolo Martinelli
- Department of Medicine, Division of Gastroenterology, Ribeirão Preto Medical School, University of São Paulo, 3900 Bandeirantes Avenue, 14049-900 Ribeirão Preto, Brazil
| | - Celso Teixeira Mendes-Junior
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, 3900 Bandeirantes Avenue, 14049-900 Ribeirão Preto, Brazil
| | - Edgardo Delfino Carosella
- 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, 1 Avenue Claude Vellefaux, 75475 Paris, France; Université Paris-Diderot, UMR 976 HIPI, Institut de Recherche Saint-Louis, 1 Avenue Claude Vellefaux, 75475 Paris, France
| | - Eduardo Antônio Donadi
- Postgraduate Program of Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo, 3900 Bandeirantes Avenue, 14049-900 Ribeirão Preto, Brazil; Department of Medicine, Division of Clinical Immunology, Ribeirão Preto Medical School, University of São Paulo, 3900 Bandeirantes Avenue, 14049-900 Ribeirão Preto, Brazil
| | - 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, 1 Avenue Claude Vellefaux, 75475 Paris, France; Université Paris-Diderot, UMR 976 HIPI, Institut de Recherche Saint-Louis, 1 Avenue Claude Vellefaux, 75475 Paris, France.
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42
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Drabbels JJM, Welleweerd R, van Rooy I, Johnsen GM, Staff AC, Haasnoot GW, Westerink N, Claas FHJ, Rozemuller E, Eikmans M. HLA-G whole gene amplification reveals linkage disequilibrium between the HLA-G 3'UTR and coding sequence. HLA 2020; 96:179-185. [PMID: 32307888 PMCID: PMC7384165 DOI: 10.1111/tan.13909] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 04/10/2020] [Accepted: 04/14/2020] [Indexed: 12/25/2022]
Abstract
Polymorphic sites in the HLA-G gene may influence expression and function of the protein. Knowledge of the association between high-resolution HLA-G alleles and 3-prime untranslated (3'UTR) haplotypes is useful for studies on the role of HLA-G in transplantation, pregnancy, and cancer. We developed a next generation sequencing (NGS)-based typing assay enabling full phasing over the whole HLA-G gene sequence with inclusion of the 3'UTR region. DNA from 171 mother-child pairs (342 samples) was studied for: (a) HLA-G allele information by the NGSgo-AmpX HLA-G assay, (b) 3'UTR haplotype information by an in-house developed sequence-based typing method of a 699/713 base pair region in the 3'UTR, and (c) the full phase HLA-G gene sequence, by combining primers from both assays. The mother to child inheritance allowed internal verification of newly identified alleles and of association between coding and UTR regions. The NGSgo workflow compatible with Illumina platforms was employed. Data was interpreted using NGSengine software. In 99.4% of all alleles analyzed, the extended typing was consistent with the separate allele and 3'UTR typing methods. After repeated analysis of four samples that showed discrepancy, consistency reached 100%. A high-linkage disequilibrium between IPD-IMGT/HLA Database-defined HLA-G alleles and the extended 3'UTR region was identified (D' = 0.994, P < .0001). Strong associations were found particularly between HLA-G*01:04 and UTR-3, between HLA-G*01:01:03 and UTR-7, and between HLA-G*01:03:01 and UTR-5 (for all: r = 1). Six novel HLA-G alleles and three novel 3'UTR haplotype variants were identified, of which three and one, respectively, were verified in the offspring.
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Affiliation(s)
- Jos J M Drabbels
- Department of Immunohematology, Leiden University Medical Center, Leiden, The Netherlands
| | | | | | - Guro M Johnsen
- Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,Division of Obstetrics and Gyneacology, Oslo University Hospital, Oslo, Norway
| | - Anne Cathrine Staff
- Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,Division of Obstetrics and Gyneacology, Oslo University Hospital, Oslo, Norway
| | - Geert W Haasnoot
- Department of Immunohematology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Frans H J Claas
- Department of Immunohematology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Michael Eikmans
- Department of Immunohematology, Leiden University Medical Center, Leiden, The Netherlands
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43
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de Azevedo JTC, Malmegrim KCR. Immune mechanisms involved in sickle cell disease pathogenesis: current knowledge and perspectives. Immunol Lett 2020; 224:1-11. [PMID: 32437728 DOI: 10.1016/j.imlet.2020.04.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 04/02/2020] [Accepted: 04/18/2020] [Indexed: 12/18/2022]
Abstract
Sickle cell disease (SCD) is caused by a single point mutation in the β-chain of the hemoglobin gene that results in the replacement of glutamic acid with valine in the hemoglobin protein. However, recent studies have demonstrated that alterations in several other genes, especially immune related genes, may be associated with complications of SCD. In fact, higher chronic inflammatory status is related to more severe clinical symptoms in SCD patients, suggesting crucial roles of the immune system in SCD physiopathology. Nevertheless, although participation of innate immune cells in SCD pathogenesis has been broadly and extensively described, little is known about the roles of the adaptive immune system in this disease. In addition, the influence of treatments on the immune system of SCD patients and their complications (such as alloimmunization) are not yet completely understood. Thus, we reviewed the current knowledge about the immune mechanisms involved in SCD pathogenesis. We suggest recommendations for future studies to allow for a broader understanding of SCD pathogenesis, helping in the development of new therapies and improvement in the life quality and expectancy of patients.
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Affiliation(s)
- Júlia Teixeira Cottas de Azevedo
- Center for Cell-based Therapy, Regional Blood Center of Ribeirão Preto, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil; Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Kelen Cristina Ribeiro Malmegrim
- Center for Cell-based Therapy, Regional Blood Center of Ribeirão Preto, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil; Department of Clinical, Toxicological and Bromatological Analysis, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
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44
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de Magalhães KCSF, Silva KR, Gomes NA, Sadissou I, Carvalho GT, Buzellin MA, Tafuri LS, Nunes CB, Nunes MB, Donadi EA, da Silva IL, Simões RT. HLA-G 14 bp In/Del and +3142 C/G genotypes are differentially expressed between patients with grade IV gliomas and controls. Int J Neurosci 2020; 131:327-335. [PMID: 32241248 DOI: 10.1080/00207454.2020.1744593] [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: 10/24/2022]
Abstract
Aim: Human Leukocyte Antigen-G (HLA-G) is a non-classical class I molecule that is involved in maternal-fetal immunotolerance. In cancer, this molecule contributes to the tumor escape. The aim of this study was to evaluate the 14 bp In/Del and +3142 C > G polymorphisms of the HLA-G 3' UTR and its relation with plasma and tissue HLA-G expression in patients with grade IV (high-grade) and grade I/II (low-grade) gliomas and controls.Patients and methods: Peripheral blood and tumor biopsies were collected from 85 patients with gliomas and blood samples from 94 controls. Polymorphisms were analyzed from blood DNA. Soluble HLA-G (sHLA-G) was measured by ELISA in plasma of the subjects and the tissue expression by immunohistochemistry on patient's tissue.Results: Higher levels of sHLA-G were observed in grade IV gliomas patients than in controls (p < 0.0001). In grade IV patients, the heterozygous 14pb In/Del, +3142 C/G genotypes and Del/C*In/G haplotype were associated with higher sHLA-G levels (p < 0.0001) when compared with controls. GBM patients were stratified into high and low sHLA-G expression and an association was found between +3142 C allele and high sHLA-G plasmatic levels (p = 0.0095). Tissue HLA-G immunolabel was higher in high-grade than low-grade gliomas (p = 0.0033).Conclusion: This was the first study evaluating HLA-G 3' UTR polymorphisms and expression in patients with gliomas. The 14 bp In/Del and +3142 C/G genotypes and haplotypes showed high influence over sHLA-G expression, suggesting a heterozygous advantage in the tumor context and may contribute to a worse prognosis in glioma patients.
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Affiliation(s)
| | - Karla R Silva
- Department of Health Management, School of Nursing, Federal University of Minas Gerais (EEUFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Nathália A Gomes
- Institute of Education and Research of Santa Casa de Belo Horizonte Hospital (IEP/SCBH), Minas Gerais, Brazil
| | - Ibrahim Sadissou
- Division of Clinical Immunology, Department of Medicine, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Gérvasio T Carvalho
- Institute of Education and Research of Santa Casa de Belo Horizonte Hospital (IEP/SCBH), Minas Gerais, Brazil.,Neurosurgery Department of the Santa Casa de Belo Horizonte Hospital (SCBH), Belo Horizonte, Minas Gerais, Brazil
| | - Marcelo A Buzellin
- Institute of Education and Research of Santa Casa de Belo Horizonte Hospital (IEP/SCBH), Minas Gerais, Brazil
| | - Luciene S Tafuri
- Institute of Education and Research of Santa Casa de Belo Horizonte Hospital (IEP/SCBH), Minas Gerais, Brazil
| | - Cristiana B Nunes
- Department of Pathological Anatomy and Forensic Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Maurício B Nunes
- Pathological Anatomy Service of Santa Casa of Belo Horizonte Hospital (SCBH), Belo Horizonte, Minas Gerais, Brazil
| | - Eduardo A Donadi
- Division of Clinical Immunology, Department of Medicine, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Istéfani Luciene da Silva
- Institute of Education and Research of Santa Casa de Belo Horizonte Hospital (IEP/SCBH), Minas Gerais, Brazil.,Federal University of West of Bahia (UFOB), Bahia, Brazil
| | - Renata T Simões
- Institute of Education and Research of Santa Casa de Belo Horizonte Hospital (IEP/SCBH), Minas Gerais, Brazil
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Rodrigues JKF, Crovella S, Celerino da Silva R. The HLA-G 14 bp allele frequency in different populations: A global meta-analysis. Meta Gene 2020. [DOI: 10.1016/j.mgene.2019.100624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Nowak I, Wilczyńska K, Radwan P, Wiśniewski A, Krasiński R, Radwan M, Wilczyński JR, Malinowski A, Kuśnierczyk P. Association of Soluble HLA-G Plasma Level and HLA-G Genetic Polymorphism With Pregnancy Outcome of Patients Undergoing in vitro Fertilization Embryo Transfer. Front Immunol 2020; 10:2982. [PMID: 31993049 PMCID: PMC6971053 DOI: 10.3389/fimmu.2019.02982] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 12/04/2019] [Indexed: 01/31/2023] Open
Abstract
Infertility is currently a growing problem observed around the world and is estimated to affect between 8 and 12% of reproductive-aged couples worldwide. Artificial reproductive techniques are the last chance for couples seeking their own child. Human leukocyte antigen (HLA)-G expression has been suggested as an immunomodulatory molecule that influences pregnancy outcome. The HLA-G gene encodes either membrane-bound or/and soluble proteins. The aim of this study was the evaluation of the role of soluble HLA-G (sHLA-G) and its gene polymorphism in successful implantation after in vitro fertilization embryo transfers (IVF-ETs) in different clinical protocols. We tested the HLA-G polymorphism in three positions: rs1632947: c.-964G>A; rs1233334: c.-725G>C/T in promoter region; rs371194629: c.*65_*66insATTTGTTCATGCCT in 3′ untranslated region of exon 8, in 389 patients who underwent IVF-ETs and 320 women with healthy children born after natural conception. Among the patient group, 239 women were with recurrent implantation failure and 117 women had an ongoing pregnancy or a child born after IVF-ET. We found that certain rs1632947-rs1233334-rs371194629 HLA-G haplotypes and diplotypes were associated with infertility, while others were protective. The lowest secretors of sHLA-G were G-C-ins haplotype carriers (37.21 IU/ml), while the highest -G-C-del carriers (73.80 IU/ml). Other haplotype carriers were intermediate secretors. In our study, regardless of possessed haplotype by the patient, 59.73 IU/ml sHLA-G was the threshold value with the best sensitivity (58.82%) and specificity (66.10%) to discriminate patients who achieved and maintained pregnancy from those who did not conceive or they had miscarriage (p = 0.0085; likelihood ratio, 1.74; 95% CI = 0.55–0.78). However, we do not exclude that factors other than sHLA-G may also contribute to complications in pregnancy. In addition, we found that IVF patients in cycles when frozen/thawed embryo was transferred secreted higher soluble HLA-G levels than patients with fresh embryo transferred (p = 0.021). Moreover, correlation analysis of sHLA-G concentration measured before and after embryo transfer for particular patients indicated short ovarian stimulation with gonadotropin-releasing hormone antagonist as more beneficial than long protocol with gonadotropin-releasing hormone agonist. Our study confirms a role of HLA-G polymorphism in infertility and soluble HLA-G in the early stages of pregnancy.
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Affiliation(s)
- Izabela Nowak
- Laboratory of Immunogenetics and Tissue Immunology, Department of Clinical Immunology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Karolina Wilczyńska
- Laboratory of Immunogenetics and Tissue Immunology, Department of Clinical Immunology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Paweł Radwan
- Department of Reproductive Medicine, Gameta Hospital, Rzgów, Poland.,Biogeno-Regional Science-Technology Centre, Podzamcze, Poland
| | - Andrzej Wiśniewski
- Laboratory of Immunogenetics and Tissue Immunology, Department of Clinical Immunology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Rafał Krasiński
- Department of Reproductive Medicine, Gameta Hospital, Rzgów, Poland
| | - Michał Radwan
- Department of Reproductive Medicine, Gameta Hospital, Rzgów, Poland.,Faculty of Health Sciences, The State University of Applied Sciences in Płock, Płock, Poland
| | - Jacek R Wilczyński
- Department of Surgical and Oncological Gynecology, Medical University of Łódź, Łódź, Poland
| | - Andrzej Malinowski
- Department of Surgical, Endoscopic and Oncologic Gynecology, Polish Mothers' Memorial Hospital-Research Institute, Łódź, Poland
| | - Piotr Kuśnierczyk
- Laboratory of Immunogenetics and Tissue Immunology, Department of Clinical Immunology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
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Nilsson LL, Hornstrup MB, Perin TL, Lindhard A, Funck T, Bjerrum PJ, Mule HT, Scheike T, Nielsen HS, Hviid TVF. Soluble HLA-G and TGF-β in couples attending assisted reproduction - A possible role of TGF-β isoforms in semen? J Reprod Immunol 2019; 137:102857. [PMID: 31837543 DOI: 10.1016/j.jri.2019.102857] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 11/17/2019] [Accepted: 11/26/2019] [Indexed: 12/01/2022]
Abstract
Soluble isoforms of the non-classical Human Leukocyte Antigen (HLA)-G as well as Transforming Growth Factor (TGF)-β is expressed in seminal plasma possibly influencing the pregnancy potential. We wanted to examine the association of seminal plasma sHLA-G, TGF-β1, TGF-β2 and TGFβ3 with pregnancy success in a cohort of 127 couples and 4 single women attending fertility treatment with the use of assisted reproduction technologies (ART). Soluble HLA-G, TGF-β1, TGF-β2 and TGF-β3 in seminal plasma did not fluctuate significantly over time. We did not find any impact of seminal plasma sHLA-G, TGF-β1, TGF-β2 and TGF-β3 on time-to-pregnancy measured as number of treatment cycles. There was a significant association between concentrations of seminal plasma sHLA-G and HLA-G variations in the 3'untranslated region (3'UTR) of the HLA-G gene, supporting and extending previous findings. Furthermore, by comparing seminal plasma concentrations of sHLA-G, TGF-β1, TGF-β2 and TGF-β3 in male subjects with reduced semen quality, male subjects with normal semen quality, and sperm donors, we found that TGF-β2 was significantly lower, and TGF-β3 was significantly higher, in seminal plasma from sperm donors. These findings suggest that TGF-β isoforms may influence semen quality and fertility.
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Affiliation(s)
- Line Lynge Nilsson
- Centre for Immune Regulation and Reproductive Immunology (CIRRI), Dept. of Clinical Biochemistry, The ReproHealth Research Consortium ZUH, Zealand University Hospital, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Micha B Hornstrup
- The Fertility Clinic, Department of Obstetrics and Gynecology, The ReproHealth Research Consortium ZUH, Zealand University Hospital, Denmark
| | - Trine L Perin
- The Fertility Clinic, Department of Obstetrics and Gynecology, The ReproHealth Research Consortium ZUH, Zealand University Hospital, Denmark
| | - Anette Lindhard
- The Fertility Clinic, Department of Obstetrics and Gynecology, The ReproHealth Research Consortium ZUH, Zealand University Hospital, Denmark
| | - Tina Funck
- Centre for Immune Regulation and Reproductive Immunology (CIRRI), Dept. of Clinical Biochemistry, The ReproHealth Research Consortium ZUH, Zealand University Hospital, Denmark
| | - Poul J Bjerrum
- Department of Clinical Biochemistry, Holbæk Hospital, Region Zealand, Denmark
| | | | - Thomas Scheike
- Section of Biostatistics, Department of Public Health, University of Copenhagen, Denmark
| | - Henriette Svarre Nielsen
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark; The Fertility Clinic, Rigshospitalet, Denmark
| | - Thomas Vauvert F Hviid
- Centre for Immune Regulation and Reproductive Immunology (CIRRI), Dept. of Clinical Biochemistry, The ReproHealth Research Consortium ZUH, Zealand University Hospital, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.
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48
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Adolf IC, Akan G, Mselle TF, Dharsee N, Namkinga LA, Atalar F. Implication of Soluble HLA-G and HLA-G +3142G/C Polymorphism in Breast Cancer Patients Receiving Adjuvant Therapy in Tanzania. Asian Pac J Cancer Prev 2019; 20:3465-3472. [PMID: 31759373 PMCID: PMC7062990 DOI: 10.31557/apjcp.2019.20.11.3465] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 10/10/2019] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND During cancer growth, immunosuppressive microenvironment is created that enables tumour cells to evade an eliminative immune response and hence manage to grow into malignancy. HLA-G, existing as either membrane-bound (mHLA-G) or soluble (sHLA-G) molecule is thought to be immunosuppressive and produced more by tumor cells. The +3142G/C polymorphism in HLA-G gene affects its expression, and G allele is considered to be a protective mutant allele associated with less expression of HLA-G. The implication of HLA-G in cancer development has been reported in different cancers and populations. But, its implication in most African populations has not yet been investigated. The aim of this study was to determine the possible associations of soluble HLA-G and HLA-G +3142G/C SNP with breast cancer. MATERIALS AND METHODS 75 breast cancer patients and 84 normal controls were recruited in this study. The genotyping of HLA-G +3142G/C polymorphism was determined by LightSNiP typing assay using quantitative Real-Time PCR and sHLA-G levels were determined by ELISA. RESULTS The sHLA-G levels were significantly lower in breast cancer patients than in controls (p<0.001). Also, they were significantly lower in mastectomized patients compared to non-mastectomized patients (p=0.018). The ROC analysis revealed a significant ability of sHLA-G to differentiate breast cancer patients versus normal controls (AUC=0.697, 95% CI= 0.619-0.767, p<0.001) and identify mastectomized patients (AUC=0.667, 95% CI= 0.549 to 0.772, p=0.041). The assessment of +3142G/C polymorphism revealed a relatively similar distribution of frequencies of genotypes and alleles between breast cancer patients and normal controls (p>0.05) and was neither associated with sHLA-G levels. CONCLUSION While the +3142G/C SNP was found not to be relevant to breast cancer, the changes of sHLA-G levels in response to medical interventions such as mastectomy may be translated into its potential prognostic utility for breast cancer. More studies are needed to provide clear evidence of sHLA-G as a diagnostic and prognostic marker of breast cancer in Tanzania. .
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Affiliation(s)
- Ismael Chatita Adolf
- Department of Biochemistry, MUHAS Genetics Laboratory, Muhimbili University of Health and Allied Sciences,
- University of Dar es Salaam, Mbeya College of Health and Allied Sciences,
| | - Gokce Akan
- Department of Biochemistry, MUHAS Genetics Laboratory, Muhimbili University of Health and Allied Sciences,
| | - Teddy F Mselle
- Department of Biochemistry, MUHAS Genetics Laboratory, Muhimbili University of Health and Allied Sciences,
| | | | - Lucy A Namkinga
- University of Dar es Salaam, Mbeya College of Health and Allied Sciences,
| | - Fatmahan Atalar
- Department of Biochemistry, MUHAS Genetics Laboratory, Muhimbili University of Health and Allied Sciences,
- 4Child Health Institute, Department of Medical Genetics, Istanbul University, Turkey.
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49
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Rohn H, Schwich E, Tomoya Michita R, Schramm S, Dolff S, Gäckler A, Korth J, Heinemann FM, Wilde B, Trilling M, Horn PA, Kribben A, Witzke O, Rebmann V. HLA-G 3' untranslated region gene variants are promising prognostic factors for BK polyomavirus replication and acute rejection after living-donor kidney transplant. Hum Immunol 2019; 81:141-146. [PMID: 31679637 DOI: 10.1016/j.humimm.2019.09.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 09/19/2019] [Accepted: 09/30/2019] [Indexed: 01/26/2023]
Abstract
The immunosuppressive non-classical human leukocyte antigen-G (HLA-G) promotes transplant tolerance as well as viral immune escape. HLA-G expression is associated with regulatory elements targeting certain single nucleotide polymorphisms (SNPs) in the HLA-G 3' untranslated region (UTR). Thus, we evaluated the impact of HLA-G 3'UTR polymorphisms as surrogate markers for BK polyomavirus (BKPyV) replication or nephropathy (PyVAN) and acute cellular and antibody mediated rejection (ACR/AMR) in 251 living-donor kidney-transplant recipient pairs. After sequencing of the HLA-G 3'UTR, fourteen SNPs between +2960 and +3227 and the 14 bp insertion/deletion polymorphism, which arrange as UTR haplotypes, were identified. The UTR-4 haplotype in donors and recipients was associated with occurrence of BKPyV/PyVAN compared to the other UTR haplotypes. While the UTR-4 recipient haplotype provided protection against AMR, the UTR-2 donor haplotype was deleteriously associated with ACR/AMR. Deduction of the UTR-2/4 haplotypes to specific SNPs revealed that the +3003C variant (unique for UTR-4) in donors as well as in recipients is responsible for BKPyV/PyVAN and also provides protection against AMR; whereas the +3196G variant (unique for UTR-2) promotes allograft rejection. Thus, HLA-G 3'UTR variants are promising genetic predisposition markers both in donors and recipients that may help to predict susceptibility to either viral infectious complication of BKPyV or allograft rejection.
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Affiliation(s)
- Hana Rohn
- Department of Infectious Diseases, West German Centre for Infectious Diseases (WZI), University Hospital Essen, University Duisburg-Essen, Essen, Germany.
| | - Esther Schwich
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Rafael Tomoya Michita
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany; Department of Genetics, Institute of Biosciences, Universidade Federal do Rio Grande do Sul (UFRGS), Bento Gonçalves Avenue 9500, Campus do Vale, Porto Alegre, RS CEP 91501970, Brazil
| | - Sabine Schramm
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Sebastian Dolff
- Department of Infectious Diseases, West German Centre for Infectious Diseases (WZI), University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Anja Gäckler
- Department of Nephrology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Johannes Korth
- Department of Nephrology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Falko M Heinemann
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Benjamin Wilde
- Department of Nephrology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Mirko Trilling
- Institute for Virology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Peter A Horn
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Andreas Kribben
- Department of Nephrology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Oliver Witzke
- Department of Infectious Diseases, West German Centre for Infectious Diseases (WZI), University Hospital Essen, University Duisburg-Essen, Essen, Germany; Department of Nephrology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Vera Rebmann
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany
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50
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Melo‐Lima BL, Poras I, Passos GA, Carosella ED, Donadi EA, Moreau P. The Autoimmune Regulator (Aire) transactivates HLA-G gene expression in thymic epithelial cells. Immunology 2019; 158:121-135. [PMID: 31322727 PMCID: PMC6742766 DOI: 10.1111/imm.13099] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 07/11/2019] [Indexed: 12/12/2022] Open
Abstract
The Autoimmune Regulator (Aire) protein coordinates the negative selection of developing thymocytes by inducing the expression of hundreds of tissue-specific antigens within the thymic medulla, which is also a primary site of the expression of the immune checkpoint HLA-G molecule. Considering the immunomodulatory properties of Aire and HLA-G, and considering that the role of the constitutive thymus expression of HLA-G has not been elucidated, we studied the effect of AIRE cDNA transfection on HLA-G expression in 4D6 thymic cells and in the HLA-G-positive JEG-3 choriocarcinoma cells. Aire promoted the transactivation of HLA-G gene by increasing the overall transcription, inducing the transcription of at least G1 and G2/G4 isoforms, and incrementing the occurrence and distribution of intracellular HLA-G protein solely in 4D6 thymic cells. Luciferase-based assays and chromatin immunoprecipitation experiments performed in 4D6 cells revealed that Aire targeted at least two regions within the 5'-untranslated regulatory region (5'-URR) extending 1·4 kb from the first ATG initiation codon. The interaction occurs independently of three putative Aire-binding sites. These results indicate that the Aire-induced upregulation of HLA-G in thymic cells is likely to act through the interaction of Aire with specific HLA-G 5'-URR DNA-binding factors. Such a multimeric transcriptional complex might operate in the thymus during the process of promiscuous gene expression.
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Affiliation(s)
- Breno Luiz Melo‐Lima
- Direction de la Recherche FondamentaleInstitut de Biologie François JacobService de Recherches en Hémato‐ImmunologieHôpital Saint‐LouisCommissariat à l'Energie Atomique et aux Energies AlternativesParisFrance
- Institut de Recherche Saint‐LouisUniversité de ParisUMR976 HIPIHôpital Saint‐LouisUniversité Paris‐DiderotParisFrance
- Division of Clinical ImmunologyDepartment of MedicineRibeirao Preto Medical SchoolUniversity of São PauloRibeirão PretoSão PauloBrazil
| | - Isabelle Poras
- Direction de la Recherche FondamentaleInstitut de Biologie François JacobService de Recherches en Hémato‐ImmunologieHôpital Saint‐LouisCommissariat à l'Energie Atomique et aux Energies AlternativesParisFrance
- Institut de Recherche Saint‐LouisUniversité de ParisUMR976 HIPIHôpital Saint‐LouisUniversité Paris‐DiderotParisFrance
| | - Geraldo Aleixo Passos
- Molecular Immunogenetics GroupDepartment of GeneticsRibeirão Preto Medical SchoolUniversity of São PauloRibeirão PretoSão PauloBrazil
| | - Edgardo D. Carosella
- Direction de la Recherche FondamentaleInstitut de Biologie François JacobService de Recherches en Hémato‐ImmunologieHôpital Saint‐LouisCommissariat à l'Energie Atomique et aux Energies AlternativesParisFrance
- Institut de Recherche Saint‐LouisUniversité de ParisUMR976 HIPIHôpital Saint‐LouisUniversité Paris‐DiderotParisFrance
| | - Eduardo Antonio Donadi
- Division of Clinical ImmunologyDepartment of MedicineRibeirao Preto Medical SchoolUniversity of São PauloRibeirão PretoSão PauloBrazil
| | - Philippe Moreau
- Direction de la Recherche FondamentaleInstitut de Biologie François JacobService de Recherches en Hémato‐ImmunologieHôpital Saint‐LouisCommissariat à l'Energie Atomique et aux Energies AlternativesParisFrance
- Institut de Recherche Saint‐LouisUniversité de ParisUMR976 HIPIHôpital Saint‐LouisUniversité Paris‐DiderotParisFrance
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