51
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Sundaresh A, Wu CL, Chinnadurai RK, Rajkumar RP, Mariaselvam CM, LeMaoult J, Krishnamoorthy R, Leboyer M, Negi VS, Tamouza R. The HLA-G Genetic Contribution to Bipolar Disorder: A Trans-Ethnic Replication. Immunol Invest 2018; 47:593-604. [PMID: 29737889 DOI: 10.1080/08820139.2018.1469649] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Bipolar disorder (BD) is frequently associated with immune dysfunctions. Studying the genetic diversity of the immuno-modulatory human leukocyte antigen (HLA)-G locus in a French BD cohort, we previously reported an association between a functionally relevant 14 bp Ins/Del polymorphism and BD risk. The present study investigated the genetic and expression diversities of HLA-G in a geographically distinct South Indian population-group BD patients, as well as the influence of exposure to the neurotropic Toxoplasma gondii pathogen. Three functionally relevant HLA-G polymorphisms, i.e. HLA-G 14 bp Ins/Del (rs66554220), +3142G>C (rs1063320) and +3187A>G (rs9380142) were genotyped by polymerase chain reaction (PCR) and real-time PCR. Sub-samples of BD patients and healthy controls (HC) were investigated for plasma levels of soluble HLA-G (sHLA-G) isoforms, as well as circulating stigma of T. gondii infection. Findings indicate: (i) the frequency of the HLA-G 14 bp Del/Del genotype was higher in BD cases, as compared to HC; (ii) the HLA-G + 3142 C allele and CC genotype were more prevalent in BD patients than in HC; (iii) sHLA-G levels were significantly higher in BD cases, especially in females and in the early onset sub-group; and (iv) the InsGA haplotype was more prevalent in HC. Our findings further support the genetic contribution of HLA-G to BD risk, as well as indicate relevant expression profiles. Such data may also indicate a potential developmental role in BD etiology, given that HLA-G is an important immune regulator from the intrauterine period and across development.
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Affiliation(s)
- Aparna Sundaresh
- a Department of Clinical Immunology , Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER) , Pondicherry , India.,b INSERM, U955 , Henri Mondor Hospital , Créteil , France.,c INSERM, UMRS 1160 , Saint Louis Hospital , Paris , France
| | - Ching-Lien Wu
- d Hemato-Immunology Research Department , CEA, Saint Louis Hospital , Bat Lailler , Paris , France.,e Paris Diderot University, Sorbonne Paris Cité, UMR E-5 IUH, Saint Louis Hospital , Paris , France
| | - Raj Kumar Chinnadurai
- a Department of Clinical Immunology , Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER) , Pondicherry , India
| | | | - Christina Mary Mariaselvam
- b INSERM, U955 , Henri Mondor Hospital , Créteil , France.,c INSERM, UMRS 1160 , Saint Louis Hospital , Paris , France
| | - Joël LeMaoult
- d Hemato-Immunology Research Department , CEA, Saint Louis Hospital , Bat Lailler , Paris , France.,e Paris Diderot University, Sorbonne Paris Cité, UMR E-5 IUH, Saint Louis Hospital , Paris , France
| | | | - Marion Leboyer
- g FondaMental Foundation , Créteil , France.,h AP-HP, DHU PePSY, Pôle de Psychiatrie , Henri Mondor Hospital , Créteil , France.,i Faculty of Medicine , Paris-Est University , Créteil , France
| | - Vir Singh Negi
- a Department of Clinical Immunology , Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER) , Pondicherry , India
| | - Ryad Tamouza
- g FondaMental Foundation , Créteil , France.,h AP-HP, DHU PePSY, Pôle de Psychiatrie , Henri Mondor Hospital , Créteil , France.,i Faculty of Medicine , Paris-Est University , Créteil , France
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52
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Delyea C, Bozorgmehr N, Koleva P, Dunsmore G, Shahbaz S, Huang V, Elahi S. CD71 + Erythroid Suppressor Cells Promote Fetomaternal Tolerance through Arginase-2 and PDL-1. THE JOURNAL OF IMMUNOLOGY 2018; 200:4044-4058. [PMID: 29735482 DOI: 10.4049/jimmunol.1800113] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 04/16/2018] [Indexed: 12/31/2022]
Abstract
Survival of the allogeneic pregnancy depends on the maintenance of immune tolerance to paternal alloantigens at the fetomaternal interface. Multiple localized mechanisms contribute to the fetal evasion from the mother's immune rejection as the fetus is exposed to a wide range of stimulatory substances such as maternal alloantigens, microbes and amniotic fluids. In this article, we demonstrate that CD71+ erythroid cells are expanded at the fetomaternal interface and in the periphery during pregnancy in both humans and mice. These cells exhibit immunosuppressive properties, and their abundance is associated with a Th2 skewed immune response, as their depletion results in a proinflammatory immune response at the fetomaternal interface. In addition to their function in suppressing proinflammatory responses in vitro, maternal CD71+ erythroid cells inhibit an aggressive allogeneic response directed against the fetus such as reduction in TNF-α and IFN-γ production through arginase-2 activity and PD-1/programmed death ligand-1 (PDL-1) interactions. Their depletion leads to the failure of gestation due to the immunological rejection of the fetus. Similarly, fetal liver CD71+ erythroid cells exhibit immunosuppressive activity. Therefore, immunosuppression mediated by CD71+ erythroid cells on both sides (mother/fetus) is crucial for fetomaternal tolerance. Thus, our results reveal a previously unappreciated role for CD71+ erythroid cells in pregnancy and indicate that these cells mediate homeostatic immunosuppressive/immunoregulatory responses during pregnancy.
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Affiliation(s)
- Cole Delyea
- Department of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, T6G 2E1 Alberta, Canada
| | - Najmeh Bozorgmehr
- Department of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, T6G 2E1 Alberta, Canada
| | - Petya Koleva
- Department of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, T6G 2E1 Alberta, Canada
| | - Garett Dunsmore
- Department of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, T6G 2E1 Alberta, Canada.,Department of Medical Microbiology and Immunology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, T6G 2E1 Alberta, Canada
| | - Shima Shahbaz
- Department of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, T6G 2E1 Alberta, Canada
| | - Vivian Huang
- Division of Gastroenterology, University of Alberta, Edmonton, T6G 2E1 Alberta, Canada; and.,Division of Gastroenterology, University of Toronto, Mount Sinai Hospital, Sinai Health System, Toronto, M5G 1X5 Ontario, Canada
| | - Shokrollah Elahi
- Department of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, T6G 2E1 Alberta, Canada; .,Department of Medical Microbiology and Immunology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, T6G 2E1 Alberta, Canada
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53
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Kordelas L, da Silva Nardi F, Wagner B, Ditschkowski M, Liebregts T, Lindemann M, Heinemann FM, Horn PA, Beelen DW, Rebmann V. Elevated soluble human leukocyte antigen G levels in patients after allogeneic stem cell transplantation are associated with less severe acute and chronic graft-versus-host disease. Bone Marrow Transplant 2018. [DOI: 10.1038/s41409-018-0145-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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54
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Ribeyre C, Carlini F, René C, Jordier F, Picard C, Chiaroni J, Abi-Rached L, Gouret P, Marin G, Molinari N, Chanez P, Paganini J, Gras D, Di Cristofaro J. HLA-G Haplotypes Are Differentially Associated with Asthmatic Features. Front Immunol 2018. [PMID: 29527207 PMCID: PMC5829031 DOI: 10.3389/fimmu.2018.00278] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Human leukocyte antigen (HLA)-G, a HLA class Ib molecule, interacts with receptors on lymphocytes such as T cells, B cells, and natural killer cells to influence immune responses. Unlike classical HLA molecules, HLA-G expression is not found on all somatic cells, but restricted to tissue sites, including human bronchial epithelium cells (HBEC). Individual variation in HLA-G expression is linked to its genetic polymorphism and has been associated with many pathological situations such as asthma, which is characterized by epithelium abnormalities and inflammatory cell activation. Studies reported both higher and equivalent soluble HLA-G (sHLA-G) expression in different cohorts of asthmatic patients. In particular, we recently described impaired local expression of HLA-G and abnormal profiles for alternatively spliced isoforms in HBEC from asthmatic patients. sHLA-G dosage is challenging because of its many levels of polymorphism (dimerization, association with β2-microglobulin, and alternative splicing), thus many clinical studies focused on HLA-G single-nucleotide polymorphisms as predictive biomarkers, but few analyzed HLA-G haplotypes. Here, we aimed to characterize HLA-G haplotypes and describe their association with asthmatic clinical features and sHLA-G peripheral expression and to describe variations in transcription factor (TF) binding sites and alternative splicing sites. HLA-G haplotypes were differentially distributed in 330 healthy and 580 asthmatic individuals. Furthermore, HLA-G haplotypes were associated with asthmatic clinical features showed. However, we did not confirm an association between sHLA-G and genetic, biological, or clinical parameters. HLA-G haplotypes were phylogenetically split into distinct groups, with each group displaying particular variations in TF binding or RNA splicing sites that could reflect differential HLA-G qualitative or quantitative expression, with tissue-dependent specificities. Our results, based on a multicenter cohort, thus support the pertinence of HLA-G haplotypes as predictive genetic markers for asthma.
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Affiliation(s)
- Camille Ribeyre
- UMR7268 Anthropologie bio-culturelle, Droit, Ethique et Santé (ADES), "Biologie des Groupes Sanguins", Aix Marseille Université, CNRS, Établissement Français du Sang (EFS), Marseille, France
| | - Federico Carlini
- UMR7268 Anthropologie bio-culturelle, Droit, Ethique et Santé (ADES), "Biologie des Groupes Sanguins", Aix Marseille Université, CNRS, Établissement Français du Sang (EFS), Marseille, France
| | - Céline René
- Department of Immunology, CHRU de Montpellier, University Hospital Saint-Eloi, Montpellier, France.,Faculté de Médecine, University of Montpellier 1, Montpellier, France
| | - François Jordier
- UMR7268 Anthropologie bio-culturelle, Droit, Ethique et Santé (ADES), "Biologie des Groupes Sanguins", Aix Marseille Université, CNRS, Établissement Français du Sang (EFS), Marseille, France.,Établissement Français du Sang Alpes Méditerranée, Marseille, France
| | - Christophe Picard
- UMR7268 Anthropologie bio-culturelle, Droit, Ethique et Santé (ADES), "Biologie des Groupes Sanguins", Aix Marseille Université, CNRS, Établissement Français du Sang (EFS), Marseille, France.,Établissement Français du Sang Alpes Méditerranée, Marseille, France
| | - Jacques Chiaroni
- UMR7268 Anthropologie bio-culturelle, Droit, Ethique et Santé (ADES), "Biologie des Groupes Sanguins", Aix Marseille Université, CNRS, Établissement Français du Sang (EFS), Marseille, France.,Établissement Français du Sang Alpes Méditerranée, Marseille, France
| | - Laurent Abi-Rached
- Equipe ATIP, URMITE UM63 CNRS 7278 IRD 198 INSERM 1095, IHU Méditerranée Infection, Aix Marseille Université, Marseille, France
| | | | - Grégory Marin
- Institut Montpelliérain Alexander Grothendieck, CNRS, University of Montpellier, Montpellier, France.,Department of Statistics, University of Montpellier Hospitals, Montpellier, France
| | - Nicolas Molinari
- Institut Montpelliérain Alexander Grothendieck, CNRS, University of Montpellier, Montpellier, France.,Department of Statistics, University of Montpellier Hospitals, Montpellier, France
| | - Pascal Chanez
- Clinique des Bronches, Allergie et Sommeil, AP-HM Hôpital Nord, Marseille, France.,INSERM U1067, CNRS UMR 7333, Aix Marseille Université, Marseille, France
| | | | - Delphine Gras
- INSERM U1067, CNRS UMR 7333, Aix Marseille Université, Marseille, France
| | - Julie Di Cristofaro
- UMR7268 Anthropologie bio-culturelle, Droit, Ethique et Santé (ADES), "Biologie des Groupes Sanguins", Aix Marseille Université, CNRS, Établissement Français du Sang (EFS), Marseille, France.,Établissement Français du Sang Alpes Méditerranée, Marseille, France
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55
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Almeida RDS, Ramos AMDL, Luna CF, Pedrosa F, Donadi EA, Lucena-Silva N. Cytokines and soluble HLA-G levels in bone marrow stroma and their association with the survival rate of patients exhibiting childhood T-cell acute lymphoblastic leukemia. Cytokine 2018; 102:94-101. [DOI: 10.1016/j.cyto.2017.07.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 07/07/2017] [Accepted: 07/19/2017] [Indexed: 12/27/2022]
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56
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Guerini FR, Bolognesi E, Chiappedi M, Ripamonti E, Ghezzo A, Zanette M, Sotgiu S, Mensi MM, Carta A, Canevini MP, Zanzottera M, Agliardi C, Costa AS, Balottin U, Clerici M. HLA-G coding region polymorphism is skewed in autistic spectrum disorders. Brain Behav Immun 2018; 67:308-313. [PMID: 28923404 DOI: 10.1016/j.bbi.2017.09.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 09/08/2017] [Accepted: 09/11/2017] [Indexed: 10/18/2022] Open
Abstract
Different isoforms of HLA-G protein are endowed with a differential ability to induce allogenic tolerance during pregnancy. As prenatal immune activation is suggested to play a role in the onset of autistic spectrum disorders (ASD), we evaluated HLA G*01:01-*01:06 allelic polymorphism in a cohort of Italian children affected by ASD (N=111) their mothers (N=81), and their healthy siblings (N=39). DNA sequencing analysis of HLA-G exon 2, 3 and 4 was used to obtain HLA-G allelic frequencies; alleles distribution was compared with that of two control groups of Caucasoid couples of multiparous women and their partners from Brazil and Denmark. HLA-G distribution was significantly different in ASD children compared to both control groups (Brazilian pc=1×10-4; Danish pc=1×10-3). Since HLA-G distribution was similar in the two control groups, their data were pooled. Results indicated that HLA-G*01:01 was significantly less frequent (pc=1×10-4; OR:0.5, 95%CI: 0.3-0.7) whereas HLA-G*01:05N was significantly more frequent (pc=2×10-3; OR:7.3, 95%CI: 2.4-26.6) in ASD children compared to combined controls. Finally, no clear pattern emerged when HLA-G allelic distribution was analyzed in healthy sibs. Notably, HLA-G allelic distribution found in ASD mothers was similar to that observed in the control subgroup of women with recurrent miscarriages, whilst it was significantly different compared to women without miscarriages (pc=6×10-4 df=12). Since HLA-G*01:01 is associated with the elicitation of KIR-mediated tolerogenic responses and HLA-G*01:05N correlates with NK cells activation, results herein indicate that an immune activating milieu during pregnancy is more likely observed in association with the development of ASD, similarly to what occurs in women with recurrent miscarriages.
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Affiliation(s)
| | | | - Matteo Chiappedi
- Child Neurology and Psychiatry Unit, C. Mondino National Neurological Institute, Pavia, Italy
| | | | - Alessandro Ghezzo
- Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna and Associazione Nazionale Famiglie di Persone con Disabilitá Intellettiva e/o Relazionale (ANFFAS), Macerata, Italy
| | | | - Stefano Sotgiu
- Section of Child Neuropsychiatry, Department of Clinical and Experimental Medicine, University of Sassari, Italy
| | - Maria Martina Mensi
- Child Neurology and Psychiatry Unit, C. Mondino National Neurological Institute, Pavia, Italy
| | - Alessandra Carta
- Section of Child Neuropsychiatry, Department of Clinical and Experimental Medicine, University of Sassari, Italy
| | | | | | | | | | - Umberto Balottin
- Child Neurology and Psychiatry Unit, C. Mondino National Neurological Institute, Pavia, Italy; Department of Brain and Behavioural Sciences, University of Pavia, Italy
| | - Mario Clerici
- Don C. Gnocchi Foundation IRCCS, Milano, Italy; Department of Pathophysiology and Transplantation, University of Milano, Milano, Italy
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57
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Hirsch ML, Conatser LM, Smith SM, Salmon JH, Wu J, Buglak NE, Davis R, Gilger BC. AAV vector-meditated expression of HLA-G reduces injury-induced corneal vascularization, immune cell infiltration, and fibrosis. Sci Rep 2017; 7:17840. [PMID: 29259248 PMCID: PMC5736662 DOI: 10.1038/s41598-017-18002-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 12/05/2017] [Indexed: 01/11/2023] Open
Abstract
Over 1.5 million individuals suffer from cornea vascularization due to genetic and/or environmental factors, compromising visual acuity and often resulting in blindness. Current treatments of corneal vascularization are limited in efficacy and elicit undesirable effects including, ironically, vision loss. To develop a safe and effective therapy for corneal vascularization, adeno-associated virus (AAV) gene therapy, exploiting a natural immune tolerance mechanism induced by human leukocyte antigen G (HLA-G), was investigated. Self-complementary AAV cassettes containing codon optimized HLA-G1 (transmembrane) or HLA-G5 (soluble) isoforms were validated in vitro. Then, following a corneal intrastromal injection, AAV vector transduction kinetics, using a chimeric AAV capsid, were determined in rabbits. One week following corneal trauma, a single intrastromal injection of scAAV8G9-optHLA-G1 + G5 prevented corneal vascularization, inhibited trauma-induced T-lymphocyte infiltration (some of which were CD8+), and dramatically reduced myofibroblast formation compared to control treated eyes. Biodistribution analyses suggested AAV vectors persisted only in the trauma-induced corneas; however, a neutralizing antibody response to the vector capsid was observed inconsistently. The collective data demonstrate the clinical potential of scAAV8G9-optHLA-G to safely and effectively treat corneal vascularization and inhibit fibrosis while alluding to broader roles in ocular surface immunity and allogenic organ transplantation.
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Affiliation(s)
- Matthew L Hirsch
- Gene Therapy Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.,Department of Ophthalmology, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Laura M Conatser
- Gene Therapy Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.,Department of Ophthalmology, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Sara M Smith
- Department of Clinical Sciences, North Carolina State University, Raleigh, NC, 27607, USA
| | - Jacklyn H Salmon
- Department of Clinical Sciences, North Carolina State University, Raleigh, NC, 27607, USA
| | - Jerry Wu
- Gene Therapy Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.,Department of Ophthalmology, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Nicholas E Buglak
- Gene Therapy Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.,Department of Ophthalmology, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Rich Davis
- Department of Ophthalmology, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Brian C Gilger
- Department of Clinical Sciences, North Carolina State University, Raleigh, NC, 27607, USA.
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58
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Guberina H, Tomoya Michita R, Dolff S, Bienholz A, Trilling M, Heinemann FM, Horn PA, Kribben A, Witzke O, Rebmann V. Recipient HLA-G +3142 CC Genotype and Concentrations of Soluble HLA-G Impact on Occurrence of CMV Infection after Living-Donor Kidney Transplantation. Int J Mol Sci 2017; 18:ijms18112338. [PMID: 29113092 PMCID: PMC5713307 DOI: 10.3390/ijms18112338] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 10/29/2017] [Accepted: 10/31/2017] [Indexed: 11/26/2022] Open
Abstract
The expression modulation of the immunosuppressive non-classical Human leukocyte antigen-G (HLA-G) molecule and its soluble isoforms is an immune evasion strategy being deployed by cytomegalovirus (CMV). The +3142 C>G single nucleotide polymorphism (SNP) located within the 3′ untranslated region (3′UTR) is of crucial importance for the regulation of HLA-G expression. Therefore, we analyzed the influence of the +3142 C>G HLA-G SNP on the occurrence of CMV infection in a cohort of 178 living-donor kidney recipients and their 178 corresponding donors. In addition, soluble HLA-G (sHLA-G) levels were quantified before and after transplantation. The presence of the HLA-G +3142 CC genotype in recipients, but not donors of our cohort as along with elevated sHLA-G levels (≥6.1 ng/mL) were associated with higher susceptibility to CMV infection after transplantation. Our results provided evidence that (i) HLA-G is implicated in the establishment of CMV after living-donor kidney transplantation and (ii) recipient HLA-G +3142 CC genotype and sHLA-G concentration levels could represent important predictive risk markers for CMV infection.
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Affiliation(s)
- Hana Guberina
- Department of Infectious Diseases, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany.
| | - Rafael Tomoya Michita
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany.
| | - Sebastian Dolff
- Department of Infectious Diseases, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany.
| | - Anja Bienholz
- Department of Nephrology, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany.
| | - Mirko Trilling
- Institute for Virology, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany.
| | - Falko M Heinemann
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany.
| | - Peter A Horn
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany.
| | - Andreas Kribben
- Department of Nephrology, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany.
| | - Oliver Witzke
- Department of Infectious Diseases, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany.
- Department of Nephrology, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany.
| | - Vera Rebmann
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany.
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59
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Albayati Z, Alyami A, Alomar S, Middleton D, Bonnett L, Aleem S, Flanagan BF, Christmas SE. The Influence of Cytomegalovirus on Expression of HLA-G and its Ligand KIR2DL4 by Human Peripheral Blood Leucocyte Subsets. Scand J Immunol 2017; 86:396-407. [PMID: 28817184 DOI: 10.1111/sji.12594] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 08/11/2017] [Indexed: 01/23/2023]
Abstract
HLA-G is a non-classical class I HLA antigen, normally expressed in high levels only on extravillous cytotrophoblast. It has immunosuppressive properties in pregnancy and has also been found to be upregulated on leucocytes in viral infection. In this study, proportions of all leucocyte subsets expressing HLA-G were found to be low in healthy subjects positive or negative for cytomegalovirus (CMV). Significantly greater proportions of CD4+ CD69+ and CD56+ T cells expressed HLA-G compared to other T cells. However, following stimulation with CMV antigens or intact CMV, proportions of CD4+, CD8+, CD69+ and CD56+ T cells, and also B cells expressing HLA-G, were significantly increased in CMV+ subjects. Despite some subjects having alleles of HLA-G associated with high levels of expression, no relationship was found between HLA-G genotype and expression levels. Purified B cells from CMV+ subjects stimulated in mixed culture with CMV antigens showed significantly increased HLA-G mRNA expression by real-time polymerase chain reaction. Serum levels of soluble HLA-G were similar in CMV- and CMV+ subjects but levels in culture supernatants were significantly higher in cells from CMV+ than from CMV- subjects stimulated with CMV antigens. The HLA-G ligand KIR2DL4 was mainly expressed on NK cells and CD56+ T cells with no differences between CMV+ and CMV- subjects. Following stimulation with IL-2, an increase in the proportion of CD56+ T cells positive for KIR2DL4 was found, together with a significant decrease in CD56dimCD16+ NK cells. The results show that CMV influences HLA-G expression in healthy subjects and may contribute to viral immune evasion.
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Affiliation(s)
- Z Albayati
- Department of Clinical Infection, Microbiology & Immunology, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK
| | - A Alyami
- Department of Clinical Infection, Microbiology & Immunology, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK
| | - S Alomar
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - D Middleton
- Transplant Immunology, Royal Liverpool & Broadgreen University Hospital Trust, Liverpool, UK
| | - L Bonnett
- Department of Biostatistics, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - S Aleem
- Department of Clinical Infection, Microbiology & Immunology, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK.,Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - B F Flanagan
- Department of Women's and Children's Health, Institute of Translational Medicine, University of Liverpool, Alder Hey Children's NHS Foundation Trust Hospital, Liverpool, UK
| | - S E Christmas
- Department of Clinical Infection, Microbiology & Immunology, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK
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60
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Crux NB, Elahi S. Human Leukocyte Antigen (HLA) and Immune Regulation: How Do Classical and Non-Classical HLA Alleles Modulate Immune Response to Human Immunodeficiency Virus and Hepatitis C Virus Infections? Front Immunol 2017; 8:832. [PMID: 28769934 PMCID: PMC5513977 DOI: 10.3389/fimmu.2017.00832] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 06/30/2017] [Indexed: 12/13/2022] Open
Abstract
The genetic factors associated with susceptibility or resistance to viral infections are likely to involve a sophisticated array of immune response. These genetic elements may modulate other biological factors that account for significant influence on the gene expression and/or protein function in the host. Among them, the role of the major histocompatibility complex in viral pathogenesis in particular human immunodeficiency virus (HIV) and hepatitis C virus (HCV), is very well documented. We, recently, added a novel insight into the field by identifying the molecular mechanism associated with the protective role of human leukocyte antigen (HLA)-B27/B57 CD8+ T cells in the context of HIV-1 infection and why these alleles act as a double-edged sword protecting against viral infections but predisposing the host to autoimmune diseases. The focus of this review will be reexamining the role of classical and non-classical HLA alleles, including class Ia (HLA-A, -B, -C), class Ib (HLA-E, -F, -G, -H), and class II (HLA-DR, -DQ, -DM, and -DP) in immune regulation and viral pathogenesis (e.g., HIV and HCV). To our knowledge, this is the very first review of its kind to comprehensively analyze the role of these molecules in immune regulation associated with chronic viral infections.
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Affiliation(s)
- Nicole B Crux
- Faculty of Medicine and Dentistry, Department of Dentistry, University of Alberta, Edmonton, AB, Canada.,Faculty of Medicine and Dentistry, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada
| | - Shokrollah Elahi
- Faculty of Medicine and Dentistry, Department of Dentistry, University of Alberta, Edmonton, AB, Canada.,Faculty of Medicine and Dentistry, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada
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Expression and differential regulation of HLA-G isoforms in the retinal pigment epithelial cell line, ARPE-19. Hum Immunol 2017; 78:414-420. [DOI: 10.1016/j.humimm.2017.04.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 04/20/2017] [Accepted: 04/20/2017] [Indexed: 01/05/2023]
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Kaminski V, Ellwanger JH, Chies JAB. Down-regulation of HLA-G gene expression as an immunogenetic contraceptive therapy. Med Hypotheses 2017; 102:146-149. [DOI: 10.1016/j.mehy.2017.03.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 03/05/2017] [Indexed: 10/19/2022]
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63
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Bayer AL, Fraker CA. The Folate Cycle As a Cause of Natural Killer Cell Dysfunction and Viral Etiology in Type 1 Diabetes. Front Endocrinol (Lausanne) 2017; 8:315. [PMID: 29218028 PMCID: PMC5703744 DOI: 10.3389/fendo.2017.00315] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 10/30/2017] [Indexed: 12/15/2022] Open
Abstract
The folate pathway is critical to proper cellular function and metabolism. It is responsible for multiple functions, including energy (ATP) production, methylation reactions for DNA and protein synthesis and the production of immunomodulatory molecules, inosine and adenosine. These play an important role in immune signaling and cytotoxicity. Herein, we hypothesize that defects in the folate pathway in genetically susceptible individuals could lead to immune dysfunction, permissive environments for chronic cyclical latent/lytic viral infection, and, ultimately, the development of unchecked autoimmune responses to infected tissue, in this case islet beta cells. In the context of type 1 diabetes (T1D), there has been a recent increase in newly diagnosed cases of T1D in the past 20 years that has exceeded previous epidemiological predictions with yet unidentified factor(s). This speaks to a potential environmental trigger that adversely affects immune responses. Most research into the immune dysfunction of T1D has focused on downstream adaptive responses of T and B cells neglecting the role of the upstream innate players such as natural killer (NK) cells. Constantly, surveilling the blood and tissues for pathogens, NK cells remove threats through direct cytotoxic responses and recruitment of adaptive responses using cytokines, such as IL-1β and IFN-γ. One long-standing hypothesis suggests viral infection as a potential trigger for the autoimmune response in T1D. Recent data suggest multiple viruses as potential causal agents. Intertwined with this is an observed reduced NK cell enumeration, cytotoxicity, and cytokine signaling in T1D patients. Many of the viruses implicated in T1D are chronic latent/lysogenic infections with demonstrated capacity to reduce NK cell response and number through mechanisms that resemble those of pregnancy tolerance. Defects in the folate pathway in T1D patients could result in decreased immune response to viral infection or viral reactivation. Dampened NK responses to infections result in improper signaling, improper antigen presentation, and amplified CD8+ lymphocyte proliferation and cytotoxicity, a hallmark of beta cell infiltrates in patients with T1D onset. This would suggest a critical role for NK cells in T1D development linked to viral infection and the importance of the folate pathway in maintaining proper NK response.
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Affiliation(s)
- Allison L. Bayer
- Immunobiology Laboratory, Leonard M. Miller School of Medicine, Diabetes Research Institute, University of Miami, Miami, FL, United States
| | - Christopher A. Fraker
- Tissue and Biomedical Engineering Laboratory, Leonard M. Miller School of Medicine, Diabetes Research Institute, University of Miami, Miami, FL, United States
- *Correspondence: Christopher A. Fraker,
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Ben Fredj N, Sakly K, Bortolotti D, Aissi M, Frih-Ayed M, Rotola A, Caselli E, Cura F, Sakly N, Aouni M, Di Luca D, Rizzo R. The association between functional HLA-G 14bp insertion/deletion and +3142 C>G polymorphisms and susceptibility to multiple sclerosis. Immunol Lett 2016; 180:24-30. [DOI: 10.1016/j.imlet.2016.10.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 10/16/2016] [Accepted: 10/18/2016] [Indexed: 11/30/2022]
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What Unrelated Hematopoietic Stem Cell Transplantation in Thalassemia Taught us about Transplant Immunogenetics. Mediterr J Hematol Infect Dis 2016; 8:e2016048. [PMID: 27872728 PMCID: PMC5111522 DOI: 10.4084/mjhid.2016.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 09/16/2016] [Indexed: 01/07/2023] Open
Abstract
Although the past few decades have shown an improvement in the survival and complication-free survival rates in patients with beta-thalassemia major and gene therapy is already at an advanced stage of experimentation, hematopoietic stem cell transplantation (HSCT) continues to be the only effective and realistic approach to the cure of this chronic non-malignant disease. Historically, human leukocyte antigen (HLA)-matched siblings have been the preferred source of donor cells owing to superior outcomes compared with HSCT from other sources. Nowadays, the availability of an international network of voluntary stem cell donor registries and cord blood banks has significantly increased the odds of finding a suitable HLA matched donor. Stringent immunogenetic criteria for donor selection have made it possible to achieve overall survival (OS) and thalassemia-free survival (TFS) rates comparable to those of sibling transplants. However, acute and chronic graft-versus-host disease (GVHD) remains the most important complication in unrelated HSCT in thalassemia, leading to significant rates of morbidity and mortality for a chronic non-malignant disease. A careful immunogenetic assessment of donors and recipients makes it possible to individualize appropriate strategies for its prevention and management. This review provides an overview of recent insights about immunogenetic factors involved in GVHD, which seem to have a potential role in the outcome of transplantation for thalassemia.
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66
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Bothamley GH, Ehlers C, Salonka I, Skrahina A, Orcau A, Codecasa LR, Ferrarese M, Pesut D, Solovic I, Dudnyk A, Anibarro L, Denkinger C, Guglielmetti L, Muylle I, Confalonieri M. Pregnancy in patients with tuberculosis: a TBNET cross-sectional survey. BMC Pregnancy Childbirth 2016; 16:304. [PMID: 27729022 PMCID: PMC5059923 DOI: 10.1186/s12884-016-1096-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Accepted: 10/04/2016] [Indexed: 11/10/2022] Open
Abstract
Background Objectives: To determine whether the incidence of tuberculosis with pregnancy is more common than would be expected from the crude birth rate; to see whether there is significant delay in the diagnosis of tuberculosis during pregnancy. Method Design: A cross-sectional survey. Setting: 13 tuberculosis clinics within different European countries and the USA. Population/sample: All patients with tuberculosis seen at these clinics for a period > 1 year. Instrument: Questionnaire survey based on continuous data collection. Main outcome measures: number and proportion of women with tuberculosis who were pregnant; timing of diagnosis in relation to pregnancy, including those who were pregnant or delivered in the 3 months prior to the diagnosis of TB and those who developed TB within 3 months after delivery. Results Pregnancy occurred in 224 (1.5 %) of 15,217 TB patients and followed the expected rate predicted from the crude birth rate for the clinic populations. TB was diagnosed more commonly in the 3 months after delivery (n = 103) than during pregnancy (n = 68; χ2 = 25.1, P < 0.001). Conclusions TB is diagnosed more frequently after delivery, despite variations in local TB incidence and healthcare systems.
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Affiliation(s)
- Graham H Bothamley
- Department of Respiratory Medicine, Homerton University Hospital, London, E9 6SR, UK.
| | - Cordula Ehlers
- TBNET Office, Centre for Research-Borstel, Borstel, Germany
| | - Irina Salonka
- Republican Research and Practical Centre for Pulmonology and TB, Minsk, Belarus
| | - Alena Skrahina
- Republican Research and Practical Centre for Pulmonology and TB, Minsk, Belarus
| | - Angels Orcau
- Agència de Salut Pública de Barcelona, Barcelona, Spain
| | - Luigi R Codecasa
- Regional TB Reference Centre, Villa Marelli Institute, Niguarda Ca'Granda Hospital, Milan, Italy
| | - Maurizio Ferrarese
- Regional TB Reference Centre, Villa Marelli Institute, Niguarda Ca'Granda Hospital, Milan, Italy
| | - Dragica Pesut
- University of Belgrade School of Medicine, Belgrade, Serbia
| | - Ivan Solovic
- National Institute for Tuberculosis, Pulmonary Disease and Thoracic Surgery Vyšné Hágy, Ruzomberok, Slovakia
| | - Andrii Dudnyk
- National Pirogov Memorial Medical University, Vinnytsia, Ukraine
| | - Luis Anibarro
- Hospitalario Universitario de Pontevedra, Pontevedra, Spain
| | | | | | - Inge Muylle
- UMC St. Pieter - CHU St. Pierre, Brussels, Belgium
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Carlini F, Ferreira V, Buhler S, Tous A, Eliaou JF, René C, Chiaroni J, Picard C, Di Cristofaro J. Association of HLA-A and Non-Classical HLA Class I Alleles. PLoS One 2016; 11:e0163570. [PMID: 27701438 PMCID: PMC5049754 DOI: 10.1371/journal.pone.0163570] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 09/11/2016] [Indexed: 01/21/2023] Open
Abstract
The HLA-A locus is surrounded by HLA class Ib genes: HLA-E, HLA-H, HLA-G and HLA-F. HLA class Ib molecules are involved in immuno-modulation with a central role for HLA-G and HLA-E, an emerging role for HLA-F and a yet unknown function for HLA-H. Thus, the principal objective of this study was to describe the main allelic associations between HLA-A and HLA-H, -G, -F and -E. Therefore, HLA-A, -E, -G, -H and -F coding polymorphisms, as well as HLA-G UnTranslated Region haplotypes (referred to as HLA-G UTRs), were explored in 191 voluntary blood donors. Allelic frequencies, Global Linkage Disequilibrium (GLD), Linkage Disequilibrium (LD) for specific pairs of alleles and two-loci haplotype frequencies were estimated. We showed that HLA-A, HLA-H, HLA-F, HLA-G and HLA-G UTRs were all in highly significant pairwise GLD, in contrast to HLA-E. Moreover, HLA-A displayed restricted associations with HLA-G UTR and HLA-H. We also confirmed several associations that were previously found to have a negative impact on transplantation outcome. In summary, our results suggest complex functional and clinical implications of the HLA-A genetic region.
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Affiliation(s)
- Federico Carlini
- Etablissement Français du Sang Alpes Méditerranée, Marseille, France
- Aix Marseille Univ, CNRS, EFS, ADES, "Biologie des Groupes Sanguins", Marseille, France
| | - Virginia Ferreira
- Aix Marseille Univ, CNRS, EFS, ADES, "Biologie des Groupes Sanguins", Marseille, France
| | - Stéphane Buhler
- Laboratory of Anthropology, Genetics and Peopling history (AGP), Department of Genetics and Evolution–Anthropology Unit, University of Geneva, Geneva, Switzerland
- Transplantation Immunology Unit and National Reference Laboratory for Histocompatibility, Department of Genetic and Laboratory Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Audrey Tous
- Etablissement Français du Sang Alpes Méditerranée, Marseille, France
- Aix Marseille Univ, CNRS, EFS, ADES, "Biologie des Groupes Sanguins", Marseille, France
| | - Jean-François Eliaou
- Department of Immunology, CHRU de Montpellier, University Hospital Saint-Eloi, Montpellier, France
- Faculté de Médecine, University of Montpellier 1, Montpellier, France
| | - Céline René
- Department of Immunology, CHRU de Montpellier, University Hospital Saint-Eloi, Montpellier, France
- Faculté de Médecine, University of Montpellier 1, Montpellier, France
| | - Jacques Chiaroni
- Etablissement Français du Sang Alpes Méditerranée, Marseille, France
- Aix Marseille Univ, CNRS, EFS, ADES, "Biologie des Groupes Sanguins", Marseille, France
| | - Christophe Picard
- Etablissement Français du Sang Alpes Méditerranée, Marseille, France
- Aix Marseille Univ, CNRS, EFS, ADES, "Biologie des Groupes Sanguins", Marseille, France
| | - Julie Di Cristofaro
- Etablissement Français du Sang Alpes Méditerranée, Marseille, France
- Aix Marseille Univ, CNRS, EFS, ADES, "Biologie des Groupes Sanguins", Marseille, France
- * E-mail:
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Michita RT, Zambra FMB, Fraga LR, Sanseverino MTV, Callegari-Jacques SM, Vianna P, Chies JAB. A tug-of-war between tolerance and rejection – New evidence for 3′UTR HLA-G haplotypes influence in recurrent pregnancy loss. Hum Immunol 2016; 77:892-897. [DOI: 10.1016/j.humimm.2016.07.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 07/01/2016] [Accepted: 07/06/2016] [Indexed: 10/21/2022]
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69
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Thude H, Janssen M, Sterneck M, Nashan B, Koch M. 14-bp ins/del polymorphism and +3142C>G SNP of the HLA-G gene have a significant impact on acute rejection after liver transplantation. Hum Immunol 2016; 77:1159-1165. [PMID: 27664842 DOI: 10.1016/j.humimm.2016.09.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 09/18/2016] [Accepted: 09/20/2016] [Indexed: 01/01/2023]
Abstract
Expression of human leukocyte antigen G (HLA-G) has been associated with increased graft survival and decreased rejection episodes. It has been described that the HLA-G 14-base pair (bp) insertion/deletion (ins/del) (rs66554220) and +3142C>G (rs1063320) gene polymorphisms modify the expression level of HLA-G. The aim of the study was to investigate whether these HLA-G polymorphisms have an impact on acute rejection after liver transplantation. In total, 146 liver transplant recipients (57 with acute rejection and 89 without acute rejection) and 99 corresponding liver donors were genotyped for both polymorphisms. In liver transplantation the 14-bp ins/ins and the +3142GG genotypes are more frequent in recipients without rejection compared to recipients with rejection (3.5% vs. 31.5%, p=<0.001; 12.3% vs. 41.6%, p=<0.001) demonstrating an association with protection from acute rejection. In contrast, in liver donors we could not reveal an association. We conclude that 14-bp ins/ins and +3142GG genotypes of HLA-G in liver transplant recipients are of importance for prediction of acute rejection after liver transplantation. Thus genotyping of liver recipients for both polymorphisms might be useful to stratify liver transplant recipients according to the risk of acute liver transplant rejection.
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Affiliation(s)
- Hansjörg Thude
- University Medical Center Hamburg-Eppendorf, Department of Hepatobiliary and Transplant Surgery, Martinistraße 52, 20246 Hamburg, Germany.
| | - Maike Janssen
- University Medical Center Hamburg-Eppendorf, Department of Hepatobiliary and Transplant Surgery, Martinistraße 52, 20246 Hamburg, Germany
| | - Martina Sterneck
- University Medical Center Hamburg-Eppendorf, Department of Hepatobiliary and Transplant Surgery, Martinistraße 52, 20246 Hamburg, Germany
| | - Björn Nashan
- University Medical Center Hamburg-Eppendorf, Department of Hepatobiliary and Transplant Surgery, Martinistraße 52, 20246 Hamburg, Germany
| | - Martina Koch
- University Medical Center Hamburg-Eppendorf, Department of Hepatobiliary and Transplant Surgery, Martinistraße 52, 20246 Hamburg, Germany
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70
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Lazarte J, Goldraich L, Manlhiot C, Kozuszko S, Rao V, Delgado D. Human Leukocyte Antigen-G Polymorphisms Association With Cancer Post-Heart Transplantation. Hum Immunol 2016; 77:805-11. [DOI: 10.1016/j.humimm.2016.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/22/2015] [Accepted: 01/04/2016] [Indexed: 11/30/2022]
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71
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Recent Advances in Our Understanding of HLA-G Biology: Lessons from a Wide Spectrum of Human Diseases. J Immunol Res 2016; 2016:4326495. [PMID: 27652273 PMCID: PMC5019910 DOI: 10.1155/2016/4326495] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 07/23/2016] [Indexed: 12/27/2022] Open
Abstract
HLA-G is a HLA-class Ib molecule with potent immunomodulatory activities, which is expressed in physiological conditions, where modulation of the immune response is required to avoid allograft recognition (i.e., maternal-fetal interface or transplanted patients). However, HLA-G can be expressed de novo at high levels in several pathological conditions, including solid and hematological tumors and during microbial or viral infections, leading to the impairment of the immune response against tumor cells or pathogens, respectively. On the other hand, the loss of HLA-G mediated control of the immune responses may lead to the onset of autoimmune/inflammatory diseases, caused by an uncontrolled activation of the immune effector cells. Here, we have reviewed novel findings on HLA-G functions in different physiological and pathological settings, which have been published in the last two years. These studies further confirmed the important role of this molecule in the modulation of the immune system.
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72
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Nardi FDS, König L, Wagner B, Giebel B, Santos Manvailer LF, Rebmann V. Soluble monomers, dimers and HLA-G-expressing extracellular vesicles: the three dimensions of structural complexity to use HLA-G as a clinical biomarker. HLA 2016; 88:77-86. [PMID: 27440734 DOI: 10.1111/tan.12844] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 06/29/2016] [Indexed: 12/11/2022]
Abstract
The HLA-G molecule belongs to the family of nonclassical human leukocyte antigen (HLA) class I. At variance to classical HLA class I, HLA-G displays (i) a low number of nucleotide variations within the coding region, (ii) a high structural diversity, (iii) a restricted peptide repertoire, (iv) a limited tissue distribution and (v) strong immune-suppressive properties. The physiological HLA-G surface expression is restricted to the maternal-fetal interface and to immune-privileged adult tissues. Soluble forms of HLA-G (sHLA-G) are detectable in various body fluids. Cellular activation and pathological processes are associated with an aberrant or a neo-expression of HLA-G/sHLA-G. Functionally, HLA-G and its secreted forms are considered to be key players in the induction of short- and long-term tolerance. Thus, its unique expression profile and tolerance-inducing functions render HLA-G/sHLA-G an attractive biomarker to monitor the systemic health/disease status and disease activity/progression for clinical approaches in disease management and treatments. Here, we place emphasis on (i) the current status of the tolerance-inducing functions by HLA-G/sHLA-G, (ii) the current complexity to implement this molecule as a meaningful clinical biomarker regarding the three dimensions of structural diversity (monomers, dimers and HLA-G-expressing extracellular vesicles) with its functional implications, and (iii) novel and future approaches to detect and quantify sHLA-G structures and functions.
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Affiliation(s)
- F da Silva Nardi
- Institute for Transfusion Medicine, University Hospital Essen, Essen, Germany.,Laboratory of Immunogenetics and Histocompatibility (LIGH), Federal University of Paraná, Genetics Department, Curitiba, Brazil.,Ministry of Education of Brazil, Capes Foundation, Brasília, Brazil
| | - L König
- Institute for Transfusion Medicine, University Hospital Essen, Essen, Germany.,Department of Gynecology and Obstetrics, University of Duisburg-Essen, Essen, Germany
| | - B Wagner
- Institute for Transfusion Medicine, University Hospital Essen, Essen, Germany
| | - B Giebel
- Institute for Transfusion Medicine, University Hospital Essen, Essen, Germany
| | - L F Santos Manvailer
- Institute for Transfusion Medicine, University Hospital Essen, Essen, Germany.,Ministry of Education of Brazil, Capes Foundation, Brasília, Brazil
| | - V Rebmann
- Institute for Transfusion Medicine, University Hospital Essen, Essen, Germany
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Amodio G, Canti V, Maggio L, Rosa S, Castiglioni MT, Rovere-Querini P, Gregori S. Association of genetic variants in the 3'UTR of HLA-G with Recurrent Pregnancy Loss. Hum Immunol 2016; 77:886-891. [PMID: 27370685 PMCID: PMC5021086 DOI: 10.1016/j.humimm.2016.06.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 06/22/2016] [Accepted: 06/27/2016] [Indexed: 01/28/2023]
Abstract
Human Leukocyte Antigen (HLA)-G is involved in reprogramming immune responses at fetal-maternal interface during pregnancy. We evaluated the genetic diversity of the 3′ Un-Translated Region (UTR) of HLA-G, previously associated with HLA-G mRNA post-transcriptional regulation, in women with unexplained Recurrent Pregnancy Loss (RPL), with 2 pregnancy losses (RPL-2, n = 28), or 3 or more pregnancy losses (RPL-3, n = 24), and in 30 women with a history of successful pregnancy. Results showed in RPL-2, but not in RPL-3, women compared to controls: i) higher frequency of the 14 bp Ins allele, in single and in double copy; ii) significantly lower frequency of DelG/X genotype, iii) reduced frequency of the UTR-2, and UTR-3 haplotypes; iv) higher frequencies of the UTR-5, UTR-7, and UTR-8 haplotypes. This pilot study supports the relevance of performing 3′UTR HLA-G genetic screening, not limited to a specific polymorphism, but considering the extended haplotypes, as a possible predictor of pregnancy outcome.
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Affiliation(s)
- Giada Amodio
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), Division of Regenerative Medicine, Stem Cells and Gene Therapy, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
| | - Valentina Canti
- Division of Immunology, Transplantation and Infectious Disease, IRCCS San Raffaele Scientific Institute, Via Olgettina 58, 20132 Milan, Italy
| | - Luana Maggio
- Obstetric and Gynecology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Susanna Rosa
- Obstetric and Gynecology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | - Patrizia Rovere-Querini
- Division of Immunology, Transplantation and Infectious Disease, IRCCS San Raffaele Scientific Institute, Via Olgettina 58, 20132 Milan, Italy; Vita-Salute San Raffaele University, Via Olgettina 60, 20132 Milan, Italy
| | - Silvia Gregori
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), Division of Regenerative Medicine, Stem Cells and Gene Therapy, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy.
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Reches A, Nachmani D, Berhani O, Duev-Cohen A, Shreibman D, Ophir Y, Seliger B, Mandelboim O. HNRNPR Regulates the Expression of Classical and Nonclassical MHC Class I Proteins. THE JOURNAL OF IMMUNOLOGY 2016; 196:4967-76. [PMID: 27194785 DOI: 10.4049/jimmunol.1501550] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 04/20/2016] [Indexed: 11/19/2022]
Abstract
MHC class I molecules, in addition to their role in specific activation of the CTL of adaptive immune system, function also as the main ligands for NK cell inhibitory receptors, which prevent NK cells from killing normal, healthy cells. MHC class I proteins are divided into classical and nonclassical proteins. The former group consists of hundreds of HLA-A, B, and C alleles, which are universally expressed, whereas several alleles of the latter group, such as HLA-G, manifest a restricted expression pattern. Despite the important role played by these molecules in innate and adaptive immune responses, their complex expression regulation is not fully known. In our study, we investigated the regulation processes controlling the expression of MHC class I molecules, with a particular focus on their 3' untranslated regions. We identified heterogeneous nuclear ribonucleoprotein R (HNRNPR) as an important positive regulator of classical and nonclassical MHC class I molecules. HNRNPR is a RNA-binding protein belonging to the heterogeneous nuclear ribonucleoprotein family, which has a known role in processing of precursor mRNA. We demonstrated that HNRNPR binds MHC class I mRNAs in their 3' untranslated regions and enhances their stability and consequently their expression. Furthermore, regulation by HNRNPR modulates the cytotoxic activity of NK cells. In conclusion, we show that HNRNPR acts as a general positive regulator of MHC class I expression.
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Affiliation(s)
- Adi Reches
- Lautenberg Center for General and Tumor Immunology, Institute of Medical Research Israel-Canada, Faculty of Medicine, Hebrew University Hadassah Medical School, 9112001 Jerusalem, Israel; and
| | - Daphna Nachmani
- Lautenberg Center for General and Tumor Immunology, Institute of Medical Research Israel-Canada, Faculty of Medicine, Hebrew University Hadassah Medical School, 9112001 Jerusalem, Israel; and
| | - Orit Berhani
- Lautenberg Center for General and Tumor Immunology, Institute of Medical Research Israel-Canada, Faculty of Medicine, Hebrew University Hadassah Medical School, 9112001 Jerusalem, Israel; and
| | - Alexandra Duev-Cohen
- Lautenberg Center for General and Tumor Immunology, Institute of Medical Research Israel-Canada, Faculty of Medicine, Hebrew University Hadassah Medical School, 9112001 Jerusalem, Israel; and
| | - Dorin Shreibman
- Lautenberg Center for General and Tumor Immunology, Institute of Medical Research Israel-Canada, Faculty of Medicine, Hebrew University Hadassah Medical School, 9112001 Jerusalem, Israel; and
| | - Yael Ophir
- Lautenberg Center for General and Tumor Immunology, Institute of Medical Research Israel-Canada, Faculty of Medicine, Hebrew University Hadassah Medical School, 9112001 Jerusalem, Israel; and
| | - Barbara Seliger
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, 06112 Halle (Saale), Germany
| | - Ofer Mandelboim
- Lautenberg Center for General and Tumor Immunology, Institute of Medical Research Israel-Canada, Faculty of Medicine, Hebrew University Hadassah Medical School, 9112001 Jerusalem, Israel; and
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75
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Human leukocyte antigen G single-nucleotide polymorphism -201 (CC-CC) donor-recipient genotype matching as a predictor of severe cardiac allograft vasculopathy. J Heart Lung Transplant 2016; 35:1101-7. [PMID: 27287629 DOI: 10.1016/j.healun.2016.04.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Revised: 03/23/2016] [Accepted: 04/13/2016] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND In heart transplant recipients, human leukocyte antigen G (HLA-G) has been shown to inhibit endothelial and smooth muscle cells injury in vitro, suggesting protection against cardiac allograft vasculopathy (CAV). Although the expression of HLA-G is regulated by single-nucleotide polymorphisms (SNPs), their association with CAV remains unknown. Therefore, the objective of this study was to determine the association between recipient and donor HLA-G SNPs with CAV. METHODS We retrospectively analyzed DNA for HLA-G SNPs of 251 adult heart recipients, 196 of whom had their corresponding donors included. Severe CAV was defined as ISHLT Category 2 or 3. The association between donor-recipient genotypes and diagnosis of severe CAV over time was evaluated with parametric hazard regression models. RESULTS Recipient age was 48 ± 12 years, whereas donor age was 35 ± 14 years. Median follow-up was 5.0 years (range 1 day to 13.2 years). At 10 years after transplantation, freedom from severe CAV, retransplantation or death was 64%. In multivariable analysis adjusted for donor age, recipient weight and pre-transplant Class II antibodies, the presence of donor-recipient SNP -201 (CC-CC) matching was associated with an increased risk of severe CAV (hazard ratio 11.9; 95% confidence interval 4.3 to 32.9; p < 0.001). CONCLUSIONS Matching of donor-recipient SNP -201 (CC-CC) was an independent risk factor for the diagnosis of severe CAV. HLA-G SNP genotypes may reveal a pathogenic pathway to be explored for diagnostic and therapeutic strategies for CAV.
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Nardi FDS, Slowik R, Michelon T, Manvailer LFDS, Wagner B, Neumann J, Horn P, Bicalho MDG, Rebmann V. High Amounts of Total and Extracellular Vesicle-Derived Soluble HLA-G are Associated with HLA-G 14-bp Deletion Variant in Women with Embryo Implantation Failure. Am J Reprod Immunol 2016; 75:661-71. [PMID: 26959830 DOI: 10.1111/aji.12507] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 02/15/2016] [Indexed: 12/31/2022] Open
Abstract
PROBLEM Human leukocyte antigen-G (HLA-G) expression is related to 14-bp insertion/deletion polymorphism at the 3'UTR of the HLA-G gene. Soluble forms of HLA-G are released as free molecules or via extracellular vesicles (EVs). Due to the crucial role of HLA-G during pregnancy, we analyzed the 14-bp polymorphism and the two secreted forms in implantation failure women (IF) and in fertile women (FW). METHOD OF STUDY For the genetic analysis, 49 IF and 34 FW were genotyped. For sHLA-G quantification, serum samples from 35 IF and 23 FW were available. ExoQuick(™) kit was used for EVs precipitation. The total soluble HLA-G (sHLA-Gtot ) and vesicular sHLA-GEV were quantified by ELISA. The EVs size and concentration were determined by nanoparticle tracking analysis (NTA). RESULTS An increased proportion of IF presented high levels of sHLA-Gtot (P = 0.02) and vesicular sHLA-GEV (P = 0.0003) compared to FW. The 14-bp deletion allele is more frequent in IF (P = 0.0002) and associated with high levels of sHLA-Gtot and vesicular sHLA-GEV . CONCLUSION The high expression of sHLA-Gtot and sHLA-GEV , together with the presence of the 14-bp deletion allele, might be involved in implantation failure.
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Affiliation(s)
- Fabiola da Silva Nardi
- Institute for Transfusion Medicine, University Hospital Essen, Essen, Germany.,Laboratory of Immunogenetics and Histocompatibility (LIGH), Genetics Department, Federal University of Paraná, Curitiba, Brazil.,Capes Foundation, Ministry of Education of Brazil, Brasília, Brazil
| | - Renata Slowik
- Laboratory of Immunogenetics and Histocompatibility (LIGH), Genetics Department, Federal University of Paraná, Curitiba, Brazil
| | | | - Luis Felipe Dos Santos Manvailer
- Institute for Transfusion Medicine, University Hospital Essen, Essen, Germany.,Capes Foundation, Ministry of Education of Brazil, Brasília, Brazil
| | - Bettina Wagner
- Institute for Transfusion Medicine, University Hospital Essen, Essen, Germany
| | - Jorge Neumann
- Reproductive Immunology Center, Porto Alegre, Brazil
| | - Peter Horn
- Institute for Transfusion Medicine, University Hospital Essen, Essen, Germany
| | - Maria da Graça Bicalho
- Laboratory of Immunogenetics and Histocompatibility (LIGH), Genetics Department, Federal University of Paraná, Curitiba, Brazil
| | - Vera Rebmann
- Institute for Transfusion Medicine, University Hospital Essen, Essen, Germany
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77
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Co-expression of ILT4/HLA-G in human non-small cell lung cancer correlates with poor prognosis and ILT4-HLA-G interaction activates ERK signaling. Tumour Biol 2016; 37:11187-98. [PMID: 26939901 DOI: 10.1007/s13277-016-5002-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Accepted: 02/25/2016] [Indexed: 01/06/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is the most common malignant tumor in the world, of which prognosis is generally poor due to insufficient mechanistic understanding. To explore the molecular pathogenesis of NSCLC, the co-expression of immunoglobulin-like transcript 4 (ILT4) and its ligand human leukocyte antigen G (HLA-G) in NSCLC tissues and cells were investigated. Here, we detected the expression of ILT4 and HLA-G in 81 tumor specimens from primary NSCLC patients, and we found that co-expression of ILT4/HLA-G was significantly associated with regional lymph node involvement, advanced stages, and the overall survival of patients. In NSCLC cell lines, HLA-G expression increased/decreased accordingly when ILT4 was up-/down-regulated, and ILT4 expression increased in a concentration-dependent manner via the stimulation of HLA-G fusion protein. Interestingly, HLA-G fusion protein could also up-regulate the phospho-ERK1/2 expression, which means the activation of extracellular signal-regulated kinase (ERK) signaling. All in all, our results indicate that the ILT4-HLA-G interaction might play an important role in NSCLC progression. Identification of ILT4 and HLA-G expression may provide an indicator to predict prognosis and guide prevention and treatment of NSCLC.
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78
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Metabolism Is Central to Tolerogenic Dendritic Cell Function. Mediators Inflamm 2016; 2016:2636701. [PMID: 26980944 PMCID: PMC4766347 DOI: 10.1155/2016/2636701] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Accepted: 12/31/2015] [Indexed: 12/13/2022] Open
Abstract
Immunological tolerance is a fundamental tenant of immune homeostasis and overall health. Self-tolerance is a critical component of the immune system that allows for the recognition of self, resulting in hyporeactivity instead of immunogenicity. Dendritic cells are central to the establishment of dominant immune tolerance through the secretion of immunosuppressive cytokines and regulatory polarization of T cells. Cellular metabolism holds the key to determining DC immunogenic or tolerogenic cell fate. Recent studies have demonstrated that dendritic cell maturation leads to a shift toward a glycolytic metabolic state and preferred use of glucose as a carbon source. In contrast, tolerogenic dendritic cells favor oxidative phosphorylation and fatty acid oxidation. This dichotomous metabolic reprogramming of dendritic cells drives differential cellular function and plays a role in pathologies, such as autoimmune disease. Pharmacological alterations in metabolism have promising therapeutic potential.
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79
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Arjmand F, Ghasemi N, Mirghanizadeh SA, Samadi M. The balance of the immune system between HLA-G and NK cells in unexplained recurrent spontaneous abortion and polymorphisms analysis. Immunol Res 2016; 64:785-90. [DOI: 10.1007/s12026-015-8771-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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80
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Xu DP, Shi WW, Zhang TT, Lv HY, Li JB, Lin A, Yan WH. Elevation of HLA-G-expressing DC-10 cells in patients with gastric cancer. Hum Immunol 2016; 77:800-4. [PMID: 26773190 DOI: 10.1016/j.humimm.2016.01.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 12/21/2015] [Accepted: 01/04/2016] [Indexed: 11/25/2022]
Abstract
DC-10 is a distinct subset of human tolerogenic dendritic cells (DCs) which express high levels of human leukocyte antigen-G (HLA-G). DC-10 could induce adaptive type 1 regulatory T cells through the IL-10 dependent ILT4/HLA-G signaling pathway. However, the significance of DC-10 in malignancies remains unclear. In this study, the frequency and mean fluorescence intensity (MFI) of HLA-G+ DC-10 in the peripheral blood of 124 patients with gastric cancer (GC) and 130 normal controls was analyzed with flow cytometry. Plasma sHLA-G was analyzed with ELISA. Results showed both the percentages of peripheral HLA-G+ DC-10 (median: 0.13% vs 0.01%; p<0.01) and MFI of HLA-G on these cells (median: 310.0 vs 91.5; p<0.01) were dramatically increased in GC patients than in normal controls. The frequency of HLA-G+ DC-10 in GC patients was strongly relative to the tumor grade (p=0.021). sHLA-G levels in GC patients were significantly higher than in healthy controls (median: 85.80U/ml vs 61.20U/ml; p<0.01). There was no significant correlation between the percentage of DC-10 and plasma sHLA-G (p>0.05). However, the increased HLA-G+ DC-10, HLA-G MFI and plasma sHLA-G in patients with gastric cancer could be a diagnostic factor with the area under the ROC curve with 0.947 (p<0.01), 0.882 (p<0.01) and 0.700 (p<0.01) respectively. Given the immune tolerant function of DC-10 could play, the increased DC-10 might play an important role in immune suppression for patients with gastric cancer, while more studies are necessary to illustrate the clinical relevance of DC-10 in cancer patients.
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Affiliation(s)
- Dan-Ping Xu
- Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Wei-Wu Shi
- Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Tong-Tong Zhang
- Health Care Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Hai-Yan Lv
- Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Jing-Bo Li
- Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Aifen Lin
- Human Tissue Bank, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Wei-Hua Yan
- Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China.
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81
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HLA-G 14 bp insertion/deletion polymorphism and its association with sHLA-G levels in Behçet’s disease Tunisian patients. Hum Immunol 2016; 77:90-95. [DOI: 10.1016/j.humimm.2015.10.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 08/29/2015] [Accepted: 10/23/2015] [Indexed: 11/22/2022]
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82
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Lazarte J, Tumiati LC, Rao V, Delgado DH. New Developments in HLA-G in Cardiac Transplantation. Hum Immunol 2015; 77:740-5. [PMID: 26707934 DOI: 10.1016/j.humimm.2015.12.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 12/08/2015] [Accepted: 12/08/2015] [Indexed: 12/20/2022]
Abstract
Human Leukocyte Antigen-G (HLA-G) is a non-classical class 1b protein, whose gene is located on chromosome 6 (6p21.31). HLA-G inhibits the immune cells' cytotoxic activity by interacting with specific receptors on their membranes. Since it is a naturally occurring immune modulator, HLA-G has been investigated in transplantation. Indeed, a number of investigations reveal that HLA-G expression is influenced by genetic polymorphisms and in turn, those polymorphisms are associated with detrimental or beneficial outcomes in various pathological situations. The present review introduces the HLA-G molecule, the gene and its polymorphisms. It focuses on the expression of HLA-G and the role of polymorphisms primarily in heart transplant outcomes, secondarily in other transplant organs, as well as the role of the allograft and effect of medical therapy. We discuss the limitations in HLA-G transplant investigations and future directions. The immune inhibiting activity of HLA-G has a great deal of potential for its utilization in enhancing diagnostic, preventive and therapeutic strategies against rejection in the setting of transplantation.
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Affiliation(s)
- Julieta Lazarte
- Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, Toronto General Hospital-University Health Network, Toronto, Ontario, Canada.
| | - Laura C Tumiati
- Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, Toronto General Hospital-University Health Network, Toronto, Ontario, Canada
| | - Vivek Rao
- Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, Toronto General Hospital-University Health Network, Toronto, Ontario, Canada
| | - Diego H Delgado
- Division of Cardiology, Peter Munk Cardiac Centre, Toronto General Hospital-University Health Network, Toronto, Ontario, Canada
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83
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Žilinská Z, Bandžuchová H, Chrastina M, Trebatický B, Breza J, Handzušová M, Kuba D, Tirpáková J, Pavlechová M, Dedinská I, Rychlý B, Poláková K. Expression of HLA-G transcripts in graft biopsy samples of renal transplant recipients. Transpl Immunol 2015; 33:159-65. [DOI: 10.1016/j.trim.2015.10.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 10/02/2015] [Accepted: 10/04/2015] [Indexed: 10/22/2022]
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84
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Ouji-Sageshima N, Yuui K, Nakanishi M, Takeda N, Odawara Y, Yamashita M, Iwayama H, Awai K, Hashimoto H, Geraghty DE, Ishitani A, Hatake K, Ito T. sHLA-G and sHLA-I levels in follicular fluid are not associated with successful implantation. J Reprod Immunol 2015; 113:16-21. [PMID: 26517006 DOI: 10.1016/j.jri.2015.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Revised: 10/01/2015] [Accepted: 10/07/2015] [Indexed: 10/22/2022]
Abstract
In the field of in vitro fertilization (IVF), useful markers for the prediction of successful implantation for oocyte or embryo selection are essential. It has been reported that sHLA-G (sHLA-G1/HLA-G5) could be detected in the supernatant of the fertilized embryo and in follicular fluid samples (FFs), and that the presence of sHLA-G was related to successful implantation. If sHLA-G could be used as a marker of oocyte selection from multiple FFs, oocytes could be selected without physical contact, thus reducing the likelihood of damage. To investigate the potential for sHLA-G as a marker of oocyte selection from multiple FFs in one patient, protein levels of total protein, sHLA-G, and sHLA-I (sHLA-A, B, and C) were examined in FFs. The variation among multiple FFs in total protein level and sHLA-G level was not related to successful pregnancy. The average sHLA-I levels did not differ in the successful implantation and unsuccessful implantation groups, indicating that sHLA-I levels were not related to successful pregnancy. Furthermore, sHLA-G in FFs was not detected by western blotting, despite being detected by ELISA, while sHLA-I was detected by both ELISA and western blot. These data suggest that sHLA-G in FF might not be a useful marker for oocyte selection as measurements of sHLA-G were inconsistent and there was no association with successful pregnancy. Further, more rigorously tested ELISA systems for detecting sHLA-G in body fluids are necessary before the utility of sHLA-G for diagnosis can be established.
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Affiliation(s)
- Noriko Ouji-Sageshima
- Department of Immunology, Nara Medical University, 840, Shijocho, Kashihara, Nara 634-8521, Japan.
| | - Katsuya Yuui
- Department of Legal Medicine, Nara Medical University, 840, Shijocho, Kashihara, Nara 634-8521, Japan
| | - Mari Nakanishi
- Department of Legal Medicine, Nara Medical University, 840, Shijocho, Kashihara, Nara 634-8521, Japan
| | - Nobuyoshi Takeda
- Fertility Clinic Tokyo, 2-11-16, Ebisunishi, Shibuya-ku, Tokyo 150-0021, Japan
| | - Yasushi Odawara
- Fertility Clinic Tokyo, 2-11-16, Ebisunishi, Shibuya-ku, Tokyo 150-0021, Japan
| | - Masanori Yamashita
- Yamashita Ladies' Clinic, 7-1-8, Isogamidori, Chuuo-ku, Kobe, Hyogo 651-0086, Japan
| | - Hiroshi Iwayama
- Yamashita Ladies' Clinic, 7-1-8, Isogamidori, Chuuo-ku, Kobe, Hyogo 651-0086, Japan
| | - Keiko Awai
- ASKA Ladies Clinic, 3-3-17, Kitatomigaoka, Nara, Nara 631-0001, Japan
| | | | - Daniel E Geraghty
- The Clinical Research Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Seattle, WA 98109, USA
| | - Akiko Ishitani
- Department of Legal Medicine, Nara Medical University, 840, Shijocho, Kashihara, Nara 634-8521, Japan
| | - Katsuhiko Hatake
- Department of Legal Medicine, Nara Medical University, 840, Shijocho, Kashihara, Nara 634-8521, Japan
| | - Toshihiro Ito
- Department of Immunology, Nara Medical University, 840, Shijocho, Kashihara, Nara 634-8521, Japan
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85
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Analysis of the Influence of HLA-A Matching Relative to HLA-B and -DR Matching on Heart Transplant Outcomes. Transplant Direct 2015; 1:e38. [PMID: 27500238 PMCID: PMC4946482 DOI: 10.1097/txd.0000000000000545] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 08/13/2015] [Indexed: 11/27/2022] Open
Abstract
Background There are conflicting reports on the effect of donor-recipient HLA matching on outcomes in heart transplantation. The objective of this study was to investigate the effects of HLA-A matching relative to HLA-B and -DR matching on long-term survival in heart transplantation. Methods A total of 25 583 patients transplanted between 1988 and 2011 were identified from the International Society for Heart and Lung Transplantation registry. Transplants were divided into 2 donor-recipient matching groups: HLA-A–compatible (no HLA-A mismatches) and HLA-A–incompatible (1-2 HLA-A mismatches). Primary outcome was all-cause mortality. Secondary outcomes were graft failure-, cardiovascular-, infection-, or malignancy-related deaths. Results The risk of all-cause mortality 15 years after transplantation was higher for HLA-A–compatible (vs HLA-A–incompatible) grafts in patients who had HLA-B–, HLA-DR–, or HLA-B,DR–incompatible grafts (P = 0.027, P = 0.007, and P = 0.002, respectively) but not in HLA-B– and/or HLA-DR–compatible grafts. This was confirmed in multivariable Cox regression analysis where HLA-A compatibility (vs HLA-A incompatibility) was associated with higher mortality in transplants incompatible for HLA-DR or HLA-B and -DR (hazard ratio [HR], 1.59; 95% confidence interval [95% CI], 1.11-2.28; P = 0.012 and HR, 1.69; 95% CI, 1.17-2.43; P = 0.005, respectively). In multivariable analysis, the largest compromise in survival for HLA-A compatibility (vs HLA-incompatibility) was for chronic rejection in HLA-B– and -DR–incompatible grafts (HR, 1.91; 95% CI, 1.22-3.01; P = 0.005). Conclusions Decreased long-term survival in heart transplantation was associated with HLA-A compatibility in HLA-B,DR–incompatible grafts.
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86
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Tolerogenic Dendritic Cells on Transplantation: Immunotherapy Based on Second Signal Blockage. J Immunol Res 2015; 2015:856707. [PMID: 26543876 PMCID: PMC4620289 DOI: 10.1155/2015/856707] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 06/23/2015] [Accepted: 06/29/2015] [Indexed: 12/16/2022] Open
Abstract
Dendritic cells (DCs), the most important professional antigen-presenting cells (APC), play crucial role in both immunity and tolerance. It is well known that DCs are able to mount immune responses against foreign antigens and simultaneously tolerate self-antigens. Since DCs can be modulated depending on the surrounding microenvironment, they can act as a bridge between innate and adaptive immunity. However, the mechanisms that support this dual role are not entirely clear. Recent studies have shown that DCs can be manipulated ex vivo in order to trigger their tolerogenic profile, what can be a tool to be used in clinical trials aiming the treatment of various diseases and the prevention of transplant rejection. In this sense, the blockage of costimulatory molecules on DC, in the attempt of inhibiting the second signal in the immunological synapse, can be considered as one of the main strategies under development. This review brings an update on current therapies using tolerogenic dendritic cells modulated with costimulatory blockers with the aim of reducing transplant rejection. However, although there are current clinical trials using tolerogenic DC to treat allograft rejection, the actual challenge is to modulate these cells in order to maintain a permanent tolerogenic profile.
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87
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Di Cristofaro J, Reynaud-Gaubert M, Carlini F, Roubertoux P, Loundou A, Basire A, Frassati C, Thomas P, Gomez C, Picard C. HLA-G*01:04∼UTR3 Recipient Correlates With Lower Survival and Higher Frequency of Chronic Rejection After Lung Transplantation. Am J Transplant 2015; 15:2413-20. [PMID: 25989360 DOI: 10.1111/ajt.13305] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 02/11/2015] [Accepted: 03/05/2015] [Indexed: 01/25/2023]
Abstract
Lung transplantation (LTx) is a valid therapeutic option for selected patients with end-stage lung disease. Soluble HLA-G (sHLA-G) has been associated with increased graft survival and decreased rejection episodes in solid organ transplantation. HLA-G haplotypes named UTRs, defined by SNPs from both the 5'URR and 3'UTR, have been reported to reliably predict sHLA-G level. The aim of this retrospective study was to determine the impact of HLA-G alleles and UTR polymorphism from LTx recipients on anti-HLA allo-immunization risk, overall survival and chronic rejection (CLAD). HLA-G SNPs were genotyped in 124 recipients who underwent LTx from 1996 to 2010 in Marseille, 123 healthy individuals and 26 cystic fibrosis patients not requiring LTx. sHLA-G levels were measured for 38 LTx patients at D0, M3 and M12 and for 123 healthy donors. HLA-G*01:06∼UTR2 was associated with a worse evolution of cystic fibrosis (p = 0.005) but not of long-term survival post-LTx. HLA-G*01:04∼UTR3 haplotype was associated with lower levels of sHLA-G at D0 and M3 (p = 0.03), impaired long-term survival (p = 0.001), increased CLAD occurrence (p = 0.03) and the production of de novo donor-specific antibodies (DSA) at M3 (p = 0.01). This study is the first to show the deleterious association of different HLA-G alleles and UTRs in LTx.
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Affiliation(s)
- J Di Cristofaro
- Aix-Marseille Université, CNRS, EFS, ADES UMR 7268, Marseille, France
| | - M Reynaud-Gaubert
- Service de Pneumologie et Transplantation Pulmonaire, CHU Nord Faculté de Médecine, URMITE - CNRS-UMR 6236, Aix Marseille Université, Marseille, France
| | - F Carlini
- Aix-Marseille Université, CNRS, EFS, ADES UMR 7268, Marseille, France
| | - P Roubertoux
- Inserm U491, Génétique Médicale et Développement, Aix-Marseille Université, Faculté de Médecine, Marseille, France
| | - A Loundou
- Department of Public Health -EA 3279 Research Unit, University Hospital Marseille, Aix-Marseille University, Marseille, France
| | - A Basire
- Immunogenetics laboratory, EFS-Alpes Méditerranée, Marseille, France
| | - C Frassati
- Immunogenetics laboratory, EFS-Alpes Méditerranée, Marseille, France
| | - P Thomas
- Service de Chirurgie Thoracique, Hôpital Nord, Marseille, France
| | - C Gomez
- Service de Pneumologie et Transplantation Pulmonaire, CHU Nord Faculté de Médecine, URMITE - CNRS-UMR 6236, Aix Marseille Université, Marseille, France
| | - C Picard
- Aix-Marseille Université, CNRS, EFS, ADES UMR 7268, Marseille, France.,Immunogenetics laboratory, EFS-Alpes Méditerranée, Marseille, France
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