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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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Investigation of the association between HLA-G polymorphisms and obesity. JOURNAL OF SURGERY AND MEDICINE 2022. [DOI: 10.28982/josam.930690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Oztekin O, Cabus U, Enli Y. Decreased serum human leukocyte antigen-G levels are associated with gestational diabetes mellitus. J Obstet Gynaecol Res 2021; 47:2329-2337. [PMID: 33908106 DOI: 10.1111/jog.14811] [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: 10/09/2020] [Revised: 02/21/2021] [Accepted: 04/18/2021] [Indexed: 12/17/2022]
Abstract
AIM This study was designed to determine serum human leukocyte antigen-G (HLA-G) levels and establish whether serum HLA-G level is related with gestational diabetes mellitus (GDM). METHODS Twenty-five GDM patients aged between 24 and 34 years and 24 healthy pregnant women aged between 22 and 33 years were included in this study. Health status of subjects was determined by medical history, physical, and obstetric examinations. Absence of family history for Type 2 diabetes mellitus, absence of diagnosis or clinical evidence of any major disease, and absence of medication use altering glucose metabolism constituted the inclusion criteria. GDM cases who are at their 24-28 weeks of pregnancy and who have not been using any oral hypoglycemic agents were included in GDM group. Control group consisted of healthy pregnant women at their 24-28 weeks of pregnancy. RESULTS Women with GDM had significantly lower levels of serum HLA-G than controls. HLA-G levels were negatively correlated with all parameters of glucose metabolism including insulin (r = - 0.14; p = 0.338), fasting blood glucose (r = - 0.220; p = 0.129), 1-h oral glucose tolerance test (OGTT) blood glucose (r = - 0.18; p = 0.271), 2-h OGTT blood glucose (r = - 0.314; p = 0.172), homeostasis model assessment (r = - 0.226; p = 0.119), HbA1C (r = -0.342; p = 0.108), and WBC (r = -0.149; p = 0.307). There was a negative correlation between HLA-G and BMI (r = -0.341; p = 0.016). CONCLUSION Decreased circulating HLA-G level is found to be associated with insulin resistance and GDM, in this study.
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Affiliation(s)
- Ozer Oztekin
- Department of Obstetrics and Gynecology, School of Medicine, Pamukkale University, Denizli, Turkey
| | - Umit Cabus
- Department of Obstetrics and Gynecology, School of Medicine, Pamukkale University, Denizli, Turkey
| | - Yasar Enli
- Department of Biochemistry, School of Medicine, Pamukkale University, Denizli, Turkey
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Fernandes TM, Puggina EF, Mendes-Junior CT, de Paula MC, Sonon P, Donadi EA, Fernandes APM. High plasma soluble levels of the immune checkpoint HLA-G molecule among bodybuilders. PLoS One 2020; 15:e0238044. [PMID: 32997665 PMCID: PMC7526911 DOI: 10.1371/journal.pone.0238044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 08/07/2020] [Indexed: 11/24/2022] Open
Abstract
Introduction Studies report that intense physical activity influences the down-regulation of immune function in athletes as well as the interaction between adipose tissue and the immune system. Aim This study aimed to compare the plasma soluble levels of the immune checkpoint HLA-G (sHLA-G) molecule with the fat mass and muscle mass index among 77 bodybuilders and 64 controls. Results The comparisons of the percentage of body fat (%BF) revealed that the groups of male and female bodybuilders showed a statistically significant reduction in the percentage of body fat when compared to their control group, (P <0.0001, for both comparisons). Regarding sHLA-G levels, the comparisons showed that the group of male bodybuilders had significantly higher sHLA-G levels compared to the group of female bodybuilders (P = 0.0011). Conclusion Our results showed that in bodybuilders with less body fat, the systemic levels of soluble HLA-G, an immunological molecule with recognized immunosuppressive function, are significantly higher and suggest that this immune mechanism may corroborate the immunosuppressive state in athletes undergoing intense and prolonged physical training.
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Affiliation(s)
- Talita M. Fernandes
- School of Physical Education and Sport of Ribeirão Preto, University of São Paulo at Ribeirão Preto, Ribeirão Preto, SP, Brazil
- * E-mail:
| | - Enrico F. Puggina
- School of Physical Education and Sport of Ribeirão Preto, University of São Paulo at Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Celso T. Mendes-Junior
- Ribeirão Preto Faculty of Philosophy, Sciences and Letters, University of São Paulo at Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Milena C. de Paula
- College of Nursing, General and Specialized Nursing Department, University of São Paulo at Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Paulin Sonon
- FIOCRUZ Oswaldo Cruz Foundation–Instituto Aggeu Magalhães, Federal University of Pernambuco, Recife, Brazil
| | - Eduardo A. Donadi
- Medical School, Department of Medicine, University of São Paulo at Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Ana Paula M. Fernandes
- College of Nursing, General and Specialized Nursing Department, University of São Paulo at Ribeirão Preto, Ribeirão Preto, SP, Brazil
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Piancatelli D, Maccarone D, Colanardi A, Sebastiani P, D'Anselmi F, Iesari S, Binda B, Pisani F. Evaluation of Plasma Levels of Soluble HLA-G and HLA-G Genotypes in Kidney Transplant Recipients. Transplant Proc 2020; 52:1559-1561. [PMID: 32217007 DOI: 10.1016/j.transproceed.2020.02.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 02/05/2020] [Indexed: 10/24/2022]
Abstract
In the field of transplantation, expression of HLA-G, a nonclassical HLA molecule with immunosuppressive functions and limited gene polymorphism, is considered beneficial for graft acceptance; various studies have aimed to demonstrate this role in transplantation. Recently, in other clinical conditions, it has been observed that insulin resistance was associated with HLA-G14bpins/del polymorphism, the most studied regulatory polymorphism of this molecule. In the present study, plasma levels of the soluble form of HLA-G (sHLA-G) were analyzed in kidney transplant recipients (n = 103) with different HLA-G14bpins/del genotypes. In a group of 26 recipients, sHLA-G was detected before and after transplantation (1 year) to evaluate early variations. In 77 recipients, sHLA-G was detected after transplantation (3-24 years) and correlated with occurrence of long-term post-transplant morbidity (diabetes mellitus, hyperlipidemia, hypertension, obesity, etc.). METHODS Levels of sHLA-G were measured in plasma with an enzyme-linked immunosorbent assay; HLA-G14bpins/del and HLA-G+3142C>G genotypes were assessed using direct polymerase chain reaction. RESULTS Plasma levels of sHLA-G significantly decreased during the first year after transplantation (P = .019); no significant correlations were found with genotypes or early post-transplant events. Lower levels of sHLA-G were found in recipients with post-transplant diabetes mellitus or obesity carrying the HLA-G14bpins/ins (P = .006 and P = .003, respectively) or HLA-G+3142G/G genotypes. CONCLUSIONS A complex modulation of HLA-G, which includes both immunologic and metabolic effects, could affect the risk for long-term post-transplant morbidity in kidney transplant recipients. Associations of HLA-G, diabetes, and obesity deserve to be investigated by deeply exploring HLA-G regulatory variants.
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Affiliation(s)
| | - Daniela Maccarone
- Regional Center for Organ Transplantation (CRT), S. Salvatore Hospital, L'Aquila, Italy
| | | | | | - Fabrizio D'Anselmi
- General Surgery and Organ Transplantation, S. Salvatore Hospital, L'Aquila, Italy
| | - Samuele Iesari
- General Surgery and Organ Transplantation, S. Salvatore Hospital, L'Aquila, Italy; Pôle de Chirurgie Expérimentale et Transplantation, Institut de recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Barbara Binda
- General Surgery and Organ Transplantation, S. Salvatore Hospital, L'Aquila, Italy
| | - Francesco Pisani
- General Surgery and Organ Transplantation, S. Salvatore Hospital, L'Aquila, Italy; Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Italy
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Insulin resistance in obese adolescents affects the expression of genes associated with immune response. Endocr Regul 2020; 53:71-82. [PMID: 31517622 DOI: 10.2478/enr-2019-0009] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE The development of obesity and its metabolic complications is associated with dysregulation of various intrinsic mechanisms, which control basic metabolic processes through changes in the expression of numerous regulatory genes. METHODS The expression level of HLA-DRA, HLA-DRB1, HLA-G, HLA-F, and NFX1 genes as well as miR-190b was measured in the blood of obese adolescents without signs of resistance to insulin and with insulin resistance in comparison with the group of relative healthy control individuals without signs of obesity. RESULTS It was shown that obesity without signs of insulin resistance is associated with upregulation of the expression level of HLA-DRA and HLA-DRB1 genes, but with down-regulation of HLA-G gene expression in the blood as compared to control group of relative healthy adolescents. At the same time, no significant changes were observed in the expression level of HLA-F and NFX1 genes in the blood of this group of obese adolescents. Development of insulin resistance in obese individuals leads to significant down-regulation of HLA-DRA, HLA-DRB1, HLA-G, and HLA-F gene expressions as well as to up-regulation of NFX1 gene as well as microRNA miR-190b in the blood as compared to obese patients without signs of insulin resistance. CONCLUSIONS Results of this study provide evidence that obesity affects the expression of the subset of genes related to immune response in the blood and that development of insulin resistance in obese adolescents is associated with strong down-regulation of the expressions of HLA-DRA, HLA-DRB1, HLA-F, and HLA-G genes, which may be contribute to the development of obesity complications. It is possible that transcription factor NFX1 and miR-190b participate in downregulation of HLA-DRA gene expression in the blood of obese adolescents with insulin resistance.
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Sommese L, Benincasa G, Schiano C, Marfella R, Grimaldi V, Sorriento A, Lucchese R, Fiorito C, Sardu C, Nicoletti GF, Napoli C. Genetic and epigenetic-sensitive regulatory network in immune response: a putative link between HLA-G and diabetes. Expert Rev Endocrinol Metab 2019; 14:233-241. [PMID: 31131681 DOI: 10.1080/17446651.2019.1620103] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 05/14/2019] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Human leukocyte antigen-G (HLA-G) gene encodes for a tolerogenic molecule constitutively expressed in human pancreas and upregulated upon inflammatory signals. The 14 bp INS/DEL polymorphism in the 3'UTR of HLA-G may influence the susceptibility for diabetes and coronary heart diseases (CHD), thus suggesting a novel candidate gene. DNA hypomethylation at HLA-G promoter may be a putative useful clinical biomarker for CHD onset. Upregulation of soluble HLA-G isoform (sHLA-G) was detected in prediabetic and diabetic subjects, suggesting a putative role in metabolic dysfunctions. AREAS COVERED We conducted a scoping literature review of genetic and epigenetic-sensitive mechanisms regulating HLA-G in diabetes. English-language manuscripts published between 1997 and 2019, were identified through PubMed, Google Scholar, and Web of Science database searches. After selecting 14 original articles representing case-control studies, we summarized and critically evaluated their main findings. EXPERT COMMENTARY Although epigenetic modifications are involved in the onset of hyperglycemic conditions evolving into diabetes and CHD, it is still difficult to obtain simple and useful clinical biomarkers. Inflammatory-induced KDM6A/INF-β/HLA-G axis might be a part of the epigenetic network leading to overexpression of HLA-G at pancreatic level. Network medicine may show whether HLA-G is involved in diabetes and CHD.
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Affiliation(s)
- Linda Sommese
- a U.O.C. Division of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Department of Experimental Medicine , Università degli Studi della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Giuditta Benincasa
- b Clinical Department of Internal Medicine and Specialistics, Department of Advanced Clinical and Surgical Sciences , University of Campania "Luigi Vanvitelli , Naples , Italy
| | | | - Raffaele Marfella
- b Clinical Department of Internal Medicine and Specialistics, Department of Advanced Clinical and Surgical Sciences , University of Campania "Luigi Vanvitelli , Naples , Italy
| | - Vincenzo Grimaldi
- a U.O.C. Division of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Department of Experimental Medicine , Università degli Studi della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Antonio Sorriento
- a U.O.C. Division of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Department of Experimental Medicine , Università degli Studi della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Roberta Lucchese
- a U.O.C. Division of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Department of Experimental Medicine , Università degli Studi della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Carmela Fiorito
- a U.O.C. Division of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Department of Experimental Medicine , Università degli Studi della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Celestino Sardu
- b Clinical Department of Internal Medicine and Specialistics, Department of Advanced Clinical and Surgical Sciences , University of Campania "Luigi Vanvitelli , Naples , Italy
| | - Giovanni Francesco Nicoletti
- d Multidisciplinary Department of Medical-Surgical and Dental Specialties , Università degli Studi della Campania "Luigi Vanvitelli" , Naples , Italy
| | - Claudio Napoli
- b Clinical Department of Internal Medicine and Specialistics, Department of Advanced Clinical and Surgical Sciences , University of Campania "Luigi Vanvitelli , Naples , Italy
- c IRCCS SDN , Naples , Italy
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