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De Louche CD, Roghanian A. Human inhibitory leukocyte Ig-like receptors: from immunotolerance to immunotherapy. JCI Insight 2022; 7:151553. [PMID: 35076022 PMCID: PMC8855791 DOI: 10.1172/jci.insight.151553] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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2
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Wuerfel FM, Huebner H, Häberle L, Gass P, Hein A, Jud SM, Hack CC, Wunderle M, Schulz-Wendtland R, Erber R, Hartmann A, Ekici AB, Beckmann MW, Fasching PA, Ruebner M. HLA-G and HLA-F protein isoform expression in breast cancer patients receiving neoadjuvant treatment. Sci Rep 2020; 10:15750. [PMID: 32978482 PMCID: PMC7519664 DOI: 10.1038/s41598-020-72837-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 09/02/2020] [Indexed: 02/07/2023] Open
Abstract
The immunosuppressive human leukocyte antigens HLA-G and HLA-F are expressed on trophoblast and malignant cells. Four membrane-bound and three soluble HLA-G protein isoforms have been described, which have different immunosuppressive potentials. HLA-F has three transcript variants, resulting in three different protein isoforms. The aim of this study was to evaluate the prognostic and predictive value of HLA-G and HLA-F protein isoform expression patterns in patients with breast cancer. Core biopsies were taken at diagnosis in patients with HER2+ (n = 28), luminal B-like (n = 49) and triple-negative (n = 38) breast cancers who received neoadjuvant chemotherapy. Expression levels of HLA-F and -G were correlated with the pathological complete response (pCR). Protein expression was determined by Western blot analysis, using two antibodies for each HLA, specific for different isoforms. The protein expression of HLA isoforms did not significantly differ between breast cancer subtypes. However, some initial indications were found for an association between the soluble HLA-G6 protein isoform and pCR in HER2+ breast cancer. The study provides preliminary evidence for the evaluation of HLA-G isoform expression, in particular HLA-G6, as a possible new marker for pCR in HER2+ breast cancer.
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Affiliation(s)
- Franziska M Wuerfel
- Department of Gynaecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Hanna Huebner
- Department of Gynaecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Lothar Häberle
- Department of Gynaecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Paul Gass
- Department of Gynaecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Alexander Hein
- Department of Gynaecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Sebastian M Jud
- Department of Gynaecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Carolin C Hack
- Department of Gynaecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Marius Wunderle
- Department of Gynaecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Rüdiger Schulz-Wendtland
- Institute of Diagnostic Radiology, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Erlangen, Germany
| | - Ramona Erber
- Institute of Pathology, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Erlangen, Germany
| | - Arndt Hartmann
- Institute of Pathology, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Erlangen, Germany
| | - Arif B Ekici
- Institute of Human Genetics, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Erlangen, Germany
| | - Matthias W Beckmann
- Department of Gynaecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Peter A Fasching
- Department of Gynaecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Matthias Ruebner
- Department of Gynaecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg (FAU), Universitätsstrasse 21-23, 91054, Erlangen, Germany.
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Yen BL, Hwa HL, Hsu PJ, Chen PM, Wang LT, Jiang SS, Liu KJ, Sytwu HK, Yen ML. HLA-G Expression in Human Mesenchymal Stem Cells (MSCs) Is Related to Unique Methylation Pattern in the Proximal Promoter as well as Gene Body DNA. Int J Mol Sci 2020; 21:ijms21145075. [PMID: 32708387 PMCID: PMC7404323 DOI: 10.3390/ijms21145075] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/07/2020] [Accepted: 07/15/2020] [Indexed: 02/07/2023] Open
Abstract
Multipotent human mesenchymal stem cells (MSCs) harbor clinically relevant immunomodulation, and HLA-G, a non-classical MHC class I molecule with highly restricted tissue expression, is one important molecule involved in these processes. Understanding of the natural regulatory mechanisms involved in expression of this elusive molecule has been difficult, with near exclusive reliance on cancer cell lines. We therefore studied the transcriptional control of HLA-G in primary isolated human bone marrow- (BM), human embryonic stem cell-derived (hE-), as well as placenta-derived MSCs (P-MSCs), and found that all 3 types of MSCs express 3 of the 7 HLA-G isoforms at the gene level; however, fibroblasts did not express HLA-G. Protein validation using BM- and P-MSCs demonstrated expression of 2 isoforms including a larger HLA-G-like protein. Interferon-γ (IFN-γ) stimulation upregulated both gene and protein expression in MSCs but not the constitutively expressing JEG-3 cell line. Most interestingly in human MSCs and placental tissue, hypomethylation of CpG islands not only occurs on the HLA-G proximal promoter but also on the gene body as well, a pattern not seen in either of the 2 commonly used choriocarcinoma cell lines which may contribute to the unique HLA-G expression patterns and IFN-γ-responsiveness in MSCs. Our study implicates the importance of using normal cells and tissues for physiologic understanding of tissue-specific transcriptional regulation, and highlight the utility of human MSCs in unraveling the transcriptional regulation of HLA-G for better therapeutic application.
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Affiliation(s)
- B. Linju Yen
- Regenerative Medicine Research Group, Institute of Cellular & System Medicine, National Health Research Institutes (NHRI), Zhunan 350, Taiwan;
- Department of Obstetrics/Gynecology, Cathay General Hospital Shiji, Taipei 221, Taiwan
- Correspondence: (B.L.Y.); (M.-L.Y.); Tel.: +886-37-246-166 (ext. 37501) (B.L.Y.); +886-2-2312-3456 (ext. 71560) (M.-L.Y.); Fax: +886-37-587-408 (B.L.Y); +886-2-2391-1302 (M.-L.Y.)
| | - Hsiao-Lin Hwa
- Department of Obstetrics/Gynecology, National Taiwan University (NTU) Hospital & College of Medicine, Taipei 100, Taiwan; (H.-L.H.); (P.-M.C.); (L.-T.W.)
- Institute of Forensic Medicine, College of Medicine, NTU, Taipei 100, Taiwan
| | - Pei-Ju Hsu
- Regenerative Medicine Research Group, Institute of Cellular & System Medicine, National Health Research Institutes (NHRI), Zhunan 350, Taiwan;
| | - Pei-Min Chen
- Department of Obstetrics/Gynecology, National Taiwan University (NTU) Hospital & College of Medicine, Taipei 100, Taiwan; (H.-L.H.); (P.-M.C.); (L.-T.W.)
| | - Li-Tzu Wang
- Department of Obstetrics/Gynecology, National Taiwan University (NTU) Hospital & College of Medicine, Taipei 100, Taiwan; (H.-L.H.); (P.-M.C.); (L.-T.W.)
| | - Shih-Sheng Jiang
- National Institute of Cancer Research, NHRI, Zhunan 350, Taiwan; (S.-S.J.); (K.-J.L.)
| | - Ko-Jiunn Liu
- National Institute of Cancer Research, NHRI, Zhunan 350, Taiwan; (S.-S.J.); (K.-J.L.)
| | - Huey-Kang Sytwu
- National Institute of Infectious Diseases & Vaccinology, NHRI, Zhunan 350, Taiwan;
- Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei 114, Taiwan
| | - Men-Luh Yen
- Department of Obstetrics/Gynecology, National Taiwan University (NTU) Hospital & College of Medicine, Taipei 100, Taiwan; (H.-L.H.); (P.-M.C.); (L.-T.W.)
- Correspondence: (B.L.Y.); (M.-L.Y.); Tel.: +886-37-246-166 (ext. 37501) (B.L.Y.); +886-2-2312-3456 (ext. 71560) (M.-L.Y.); Fax: +886-37-587-408 (B.L.Y); +886-2-2391-1302 (M.-L.Y.)
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Furukawa A, Meguro M, Yamazaki R, Watanabe H, Takahashi A, Kuroki K, Maenaka K. Evaluation of the Reactivity and Receptor Competition of HLA-G Isoforms toward Available Antibodies: Implications of Structural Characteristics of HLA-G Isoforms. Int J Mol Sci 2019; 20:ijms20235947. [PMID: 31779209 PMCID: PMC6928721 DOI: 10.3390/ijms20235947] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/12/2019] [Accepted: 11/22/2019] [Indexed: 12/20/2022] Open
Abstract
The human leucocyte antigen (HLA)-G, which consists of seven splice variants, is a tolerogenic immune checkpoint molecule. It plays an important role in the protection of the fetus from the maternal immune response by binding to inhibitory receptors, including leukocyte Ig-like receptors (LILRs). Recent studies have also revealed that HLA-G is involved in the progression of cancer cells and the protection from autoimmune diseases. In contrast to its well characterized isoform, HLA-G1, the binding activities of other major HLA-G isoforms, such as HLA-G2, toward available anti-HLA-G antibodies are only partially understood. Here, we investigate the binding specificities of anti-HLA-G antibodies by using surface plasmon resonance. MEM-G9 and G233 showed strong affinities to HLA-G1, with a nM range for their dissociation constants, but did not show affinities to HLA-G2. The disulfide-linker HLA-G1 dimer further exhibited significant avidity effects. On the other hand, 4H84 and MEM-G1, which can be used for the Western blotting of HLA-G isoforms, can bind to native HLA-G2, while MEM-G9 and G233 cannot. These results reveal that HLA-G2 has a partially intrinsically disordered structure. Furthermore, MEM-G1, but not 4H84, competes with the LILRB2 binding of HLA-G2. These results provide novel insight into the functional characterization of HLA-G isoforms and their detection systems.
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Affiliation(s)
- Atsushi Furukawa
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan; (A.F.); (M.M.); (R.Y.); (H.W.); (A.T.); (K.K.)
| | - Manami Meguro
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan; (A.F.); (M.M.); (R.Y.); (H.W.); (A.T.); (K.K.)
| | - Rika Yamazaki
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan; (A.F.); (M.M.); (R.Y.); (H.W.); (A.T.); (K.K.)
| | - Hiroshi Watanabe
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan; (A.F.); (M.M.); (R.Y.); (H.W.); (A.T.); (K.K.)
| | - Ami Takahashi
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan; (A.F.); (M.M.); (R.Y.); (H.W.); (A.T.); (K.K.)
| | - Kimiko Kuroki
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan; (A.F.); (M.M.); (R.Y.); (H.W.); (A.T.); (K.K.)
| | - Katsumi Maenaka
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan; (A.F.); (M.M.); (R.Y.); (H.W.); (A.T.); (K.K.)
- Center for Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
- Correspondence: ; Tel.: +81-011-706-3970
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5
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Bortolotti D, Gentili V, Rotola A, Cultrera R, Marci R, Di Luca D, Rizzo R. HHV-6A infection of endometrial epithelial cells affects immune profile and trophoblast invasion. Am J Reprod Immunol 2019; 82:e13174. [PMID: 31338899 DOI: 10.1111/aji.13174] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 07/15/2019] [Accepted: 07/15/2019] [Indexed: 12/22/2022] Open
Abstract
PROBLEM We first reported human herpesvirus (HHV)-6A DNA presence in 43% of endometrial cells from women with idiopathic infertility, whereas no fertile control women harbored the virus. We investigated the effect of HHV-6A infection on the immunological status of the endometrium. METHOD OF STUDY Endometrial biopsies, uterine flushing, and whole blood samples were collected from 67 idiopathic infertile women (mid-secretory phase). We analyzed the endometrial immunological status evaluating: (a) the effect of HHV-6A infection on endometrial immune profile analyzing the ratio of interleukin (IL)-15/ fibroblast growth factor-inducible 14 (Fn-14) and IL-18/ TNF-related weak inducer of apoptosis (TWEAK) mRNA as a biomarker of endometrial (e)natural killer activation/maturation, angiogenesis, and Th1/Th2 balance; (b) endometrial receptivity to trophoblasts in endometrial 3D in vitro model; (c) natural killer (NK) cells and T cells percentage and subpopulations by flow cytometry. RESULTS We confirmed the presence of HHV-6A infection in a 40% of idiopathic infertile women, characterized by an immune profile reflecting eNK cell cytotoxic activation and a decrease in CD4+ CD25+ CD127dim/- regulatory T cells. The co-culture of endometrial epithelial cells with spheroids generated from the extravillous trophoblast-derived cell line JEG3 showed a twofold expansion of spheroids on endometrial epithelial-stromal cells (ESC) culture surface from HHV-6A negative women while no expansion was observed on the surface of ESC from HHV-6A positive women. CONCLUSION The identification of an effect of HHV-6A infection on endometrial immune status opens new perspectives in idiopathic infertile women care management. In addition, it would be possible to select antiviral therapies as novel, non-hormonal therapeutic approaches to those idiopathic infertile women characterized by the presence of endometrial HHV-6A infection, to increase their pregnancy rate.
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Affiliation(s)
- Daria Bortolotti
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - Valentina Gentili
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - Antonella Rotola
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - Rosario Cultrera
- Department of Medical Sciences, Section of Dermathology and Infective Medicine, University of Ferrara, Ferrara, Italy
| | - Roberto Marci
- Department of Morphology, Surgery and Experimental Medicine, Section of Orthopedics, Obstetrics and Gynecology and Anesthesiology and Reanimation Ferrara, University of Ferrara, Ferrara, Italy.,School of Medicine, University of Geneva, Geneva, Switzerland
| | - Dario Di Luca
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Roberta Rizzo
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
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6
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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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7
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Fainardi E, Bortolotti D, Bolzani S, Castellazzi M, Tamborino C, Roversi G, Baldi E, Caniatti ML, Casetta I, Gentili V, Granieri E, Rizzo R. Cerebrospinal fluid amounts of HLA-G in dimeric form are strongly associated to patients with MRI inactive multiple sclerosis. Mult Scler 2016; 22:245-249. [PMID: 26084349 DOI: 10.1177/1352458515590647] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 05/13/2015] [Indexed: 07/24/2024]
Abstract
BACKGROUND The relevance of human leukocyte antigen (HLA)-G in dimeric form in multiple sclerosis (MS) is still unknown. OBJECTIVE To investigate the contribution of cerebrospinal fluid (CSF) HLA-G dimers in MS pathogenesis. METHODS CSF amounts of 78-kDa HLA-G dimers were measured by western blot analysis in 80 MS relapsing-remitting MS (RRMS) patients and in 81 inflammatory and 70 non-inflammatory controls. RESULTS CSF amounts of 78 kDa HLA-G dimers were more frequent in RRMS than in inflammatory (p<0.01) and non-inflammatory controls (p<0.001) and in magnetic resonance imaging (MRI) inactive than in MRI active RRMS (p<0.00001). CONCLUSION Our findings suggest that HLA-G dimers may be implicated in termination of inflammatory response occurring in MS.
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Affiliation(s)
- Enrico Fainardi
- Department of Neurosciences and Rehabilitation, Neuroradilogy Unit, Azienda Ospedaliero-Universitaria, Arcispedale S. Anna, Ferrara, Italy
| | - Daria Bortolotti
- Department of Medical Sciences, Section of Microbiology and Medical Genetics, University of Ferrara, Ferrara, Italy
| | - Silvia Bolzani
- Department of Medical Sciences, Section of Microbiology and Medical Genetics, University of Ferrara, Ferrara, Italy
| | - Massimiliano Castellazzi
- Department of Biomedical and Specialist Surgical Sciences, Section of Neurology, University of Ferrara, Ferrara, Italy
| | - Carmine Tamborino
- Department of Biomedical and Specialist Surgical Sciences, Section of Neurology, University of Ferrara, Ferrara, Italy
| | - Gloria Roversi
- Department of Biomedical and Specialist Surgical Sciences, Section of Neurology, University of Ferrara, Ferrara, Italy
| | - Eleonora Baldi
- Department of Neurosciences and Rehabilitation, Neurology Unit, Azienda Ospedaliero-Universitaria, Arcispedale S. Anna, Ferrara, Italy
| | - Maria Luisa Caniatti
- Department of Neurosciences and Rehabilitation, Neurology Unit, Azienda Ospedaliero-Universitaria, Arcispedale S. Anna, Ferrara, Italy
| | - Ilaria Casetta
- Department of Biomedical and Specialist Surgical Sciences, Section of Neurology, University of Ferrara, Ferrara, Italy
| | - Valentina Gentili
- Department of Medical Sciences, Section of Microbiology and Medical Genetics, University of Ferrara, Ferrara, Italy
| | - Enrico Granieri
- Department of Biomedical and Specialist Surgical Sciences, Section of Neurology, University of Ferrara, Ferrara, Italy
| | - Roberta Rizzo
- Department of Medical Sciences, Section of Microbiology and Medical Genetics, University of Ferrara, Ferrara, Italy
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8
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König L, Kasimir-Bauer S, Hoffmann O, Bittner AK, Wagner B, Manvailer LFS, Schramm S, Bankfalvi A, Giebel B, Kimmig R, Horn PA, Rebmann V. The prognostic impact of soluble and vesicular HLA-G and its relationship to circulating tumor cells in neoadjuvant treated breast cancer patients. Hum Immunol 2016; 77:791-9. [PMID: 26796737 DOI: 10.1016/j.humimm.2016.01.002] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 12/21/2015] [Accepted: 01/04/2016] [Indexed: 10/22/2022]
Abstract
The non-classical human leukocyte antigen G (HLA-G) molecule and its soluble forms exert multiple immune suppressive regulatory functions in malignancy and in stem cells contributing to immune escape mechanisms. HLA-G can be secreted as free soluble HLA-G molecules or via extracellular vesicles (EVs). Here we evaluated these soluble HLA-G forms as prognostic marker for prediction of the clinical outcome of neoadjuvant chemotherapy (NACT) treated breast cancer (BC) patients. Plasma samples of BC patients procured before (n=142) and after (n=154) NACT were quantified for total soluble HLA-G (sHLA-Gtot) and HLA-G levels in ExoQuick™ derived EV fractions (sHLA-GEV) by ELISA. The corresponding increments were specified as free sHLA-G (sHLA-Gfree). Total and free sHLA-G were significantly increased in NACT treated BC patients compared to healthy controls (n=16). High sHLA-Gfree levels were exclusively associated to estrogen receptor expression before NACT. Importantly, high sHLA-GEV levels before NACT were related to disease progression and the detection of stem cell-like circulating tumor cells, but high sHLA-Gfree levels indicated an improved clinical outcome. Thus, this study demonstrates for the first time that the different sHLA-G subcomponents represent dissimilar qualitative prognostic impacts on the clinical outcome of NACT treated BC patients, whereas the total sHLA-G levels without separating into subcomponents are not related to clinical outcome.
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Affiliation(s)
- Lisa König
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany; Department of Gynecology and Obstetrics, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45122 Essen, Germany.
| | - Sabine Kasimir-Bauer
- Department of Gynecology and Obstetrics, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45122 Essen, Germany
| | - Oliver Hoffmann
- Department of Gynecology and Obstetrics, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45122 Essen, Germany
| | - Ann-Kathrin Bittner
- Department of Gynecology and Obstetrics, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45122 Essen, Germany
| | - Bettina Wagner
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany
| | - Luis Felipe Santos Manvailer
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany; The Capes Foundation, Ministry of Education of Brazil, Cx. Postal 250, Brasília DF 70.040-020, Brazil
| | - Sabine Schramm
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany
| | - Agnes Bankfalvi
- Institute for Pathology, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45122 Essen, Germany
| | - Bernd Giebel
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany
| | - Rainer Kimmig
- Department of Gynecology and Obstetrics, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45122 Essen, Germany
| | - Peter A Horn
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany
| | - Vera Rebmann
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany
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9
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Degani Veit T, Bogo Chies JA, Switala M, Wagner B, Horn PA, Busatto M, Viegas Brenol C, Tavares Brenol JC, Machado Xavier R, Rebmann V. The paradox of high availability and low recognition of soluble HLA-G by LILRB1 receptor in rheumatoid arthritis patients. PLoS One 2015; 10:e0123838. [PMID: 25853899 PMCID: PMC4390237 DOI: 10.1371/journal.pone.0123838] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 02/24/2015] [Indexed: 11/23/2022] Open
Abstract
HLA-G is a regulatory molecule involved in immunologic tolerance. Growing evidence indicates that HLA-G plays a role in the regulation of inflammatory processes and autoimmune diseases. This study aimed at a systematic evaluation of soluble HLA-G (sHLA-G) in plasma of rheumatoid arthritis (RA) patients with long-lasting chronic inflammation. RA patients (n=68) and healthy controls (n=26) had their plasmatic sHLA-G measured by ELISA whereas the binding capability of sHLA-G to its cognate LILRB1 receptor was measured by a Luminex-based assay. All subjects were PCR-genotyped for HLA-G 14bp polymorphism (rs66554220). Significantly higher sHLA-G levels were observed in patients (p<0.001), however no significant differences were observed in LILRB1 binding capacity between RA patients and controls. Remarkably, the proportion of patients presenting specific binding of sHLA-G to LILRB1 was significantly decreased as compared to controls (56% vs. 81%, p=0.027). Patients without rheumatoid factor (RF-) were significantly overrepresented in the group of patients positive for LILRB1 binding as compared to patients without LILRB1 binding (31% vs 10%, p=0.033). Furthermore, methotrexate treated patients (n=58) revealed significantly lower LILRB1 binding to sHLA-G molecules than non-treated patients (medians: 12.2 vs. 67.7 units/ml, p=0.031). Unlike in controls, no significant differences in sHLA-G levels were observed among patients grouped by 14pb genotype. Thus, in a substantial number of late RA patients, the circulating sHLA-G molecules are impaired regarding LILRB1 recognition, meaning that although increased levels are observed; these molecules are not qualified to exert their protective functions against inflammation. Our findings offer new insights into the immunopathology of RA patients with long-lasting anti-RA-treatment and highlight the importance to also measure the binding capability of sHLA-G to LILRB1.
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Affiliation(s)
- Tiago Degani Veit
- Laboratório de Imunogenética, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - José Artur Bogo Chies
- Laboratório de Imunogenética, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Magdalena Switala
- Institute for Transfusion Medicine, University Hospital of Essen, Essen, Germany
| | - Bettina Wagner
- Institute for Transfusion Medicine, University Hospital of Essen, Essen, Germany
| | - Peter A. Horn
- Institute for Transfusion Medicine, University Hospital of Essen, Essen, Germany
| | - Mauricio Busatto
- Laboratório de Imunogenética, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | | | | | - Vera Rebmann
- Institute for Transfusion Medicine, University Hospital of Essen, Essen, Germany
- * E-mail:
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10
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Rizzo R, Lo Monte G, Bortolotti D, Graziano A, Gentili V, Di Luca D, Marci R. Impact of soluble HLA-G levels and endometrial NK cells in uterine flushing samples from primary and secondary unexplained infertile women. Int J Mol Sci 2015; 16:5510-6. [PMID: 25764161 PMCID: PMC4394489 DOI: 10.3390/ijms16035510] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 02/17/2015] [Accepted: 03/04/2015] [Indexed: 11/16/2022] Open
Abstract
The aim of this research was to determine the levels of human leukocyte antigen G (HLA-G) and endometrial Natural Killer ((e)NK) cell percentages in uterine flushing samples from primary and secondary infertile women. sHLA-G levels were lower in the uterine flushing samples from primary infertile women in comparison with women with secondary infertility. Lower CD56+KIR2DL4+ (e)NK cell percentages were detected in primary infertile women compared with secondary infertile women. This is the first study demonstrating that primary and secondary unexplained infertilities are characterized by different basal sHLA-G levels and CD56+KIR2DL4+ (e)NK cell percentages.
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Affiliation(s)
- Roberta Rizzo
- Department of Medical Sciences, Section of Microbiology and Genetics, University of Ferrara, 44100 Ferrara, Italy.
| | - Giuseppe Lo Monte
- Department of Morphology, Surgery and Experimental Medicine, Section of Gynecology and Obstetrics, University of Ferrara, 44100 Ferrara, Italy.
- University Hospital "S. Anna", 44100 Ferrara, Italy.
| | - Daria Bortolotti
- Department of Medical Sciences, Section of Microbiology and Genetics, University of Ferrara, 44100 Ferrara, Italy.
| | - Angela Graziano
- Department of Morphology, Surgery and Experimental Medicine, Section of Gynecology and Obstetrics, University of Ferrara, 44100 Ferrara, Italy.
- University Hospital "S. Anna", 44100 Ferrara, Italy.
| | - Valentina Gentili
- Department of Medical Sciences, Section of Microbiology and Genetics, University of Ferrara, 44100 Ferrara, Italy.
| | - Dario Di Luca
- Department of Medical Sciences, Section of Microbiology and Genetics, University of Ferrara, 44100 Ferrara, Italy.
| | - Roberto Marci
- Department of Morphology, Surgery and Experimental Medicine, Section of Gynecology and Obstetrics, University of Ferrara, 44100 Ferrara, Italy.
- University Hospital "S. Anna", 44100 Ferrara, Italy.
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11
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Zidi I, Ben Yahia H, Bortolotti D, Mouelhi L, Laaribi AB, Ayadi S, Zidi N, Houissa F, Debbech R, Boudabous A, Najjar T, Di Luca D, Rizzo R. Association between sHLA-G and HLA-G 14-bp deletion/insertion polymorphism in Crohn’s disease. Int Immunol 2015; 27:289-96. [DOI: 10.1093/intimm/dxv002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 01/07/2015] [Indexed: 12/13/2022] Open
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12
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13
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Dahl M, Perin TL, Djurisic S, Rasmussen M, Ohlsson J, Buus S, Lindhard A, Hviid TVF. Soluble Human Leukocyte Antigen-G in Seminal Plasma is Associated with HLA-G Genotype: Possible Implications for Fertility Success. Am J Reprod Immunol 2014; 72:89-105. [DOI: 10.1111/aji.12251] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 03/15/2014] [Indexed: 11/30/2022] Open
Affiliation(s)
- Mette Dahl
- Centre for Immune Regulation and Reproductive Immunology (CIRRI); Department of Clinical Biochemistry; Copenhagen University Hospital (Roskilde) and Roskilde Hospital; Roskilde Denmark
| | - Trine L. Perin
- The Fertility Clinic; Department of Gynaecology and Obstetrics; Copenhagen University Hospital (Roskilde) and Roskilde Hospital; Roskilde Denmark
| | - Snezana Djurisic
- Centre for Immune Regulation and Reproductive Immunology (CIRRI); Department of Clinical Biochemistry; Copenhagen University Hospital (Roskilde) and Roskilde Hospital; Roskilde Denmark
| | - Merete Rasmussen
- Centre for Immune Regulation and Reproductive Immunology (CIRRI); Department of Clinical Biochemistry; Copenhagen University Hospital (Roskilde) and Roskilde Hospital; Roskilde Denmark
| | - Janni Ohlsson
- Department of International Health, Immunology and Microbiology; Faculty of Health Sciences; The Panum Institute; University of Copenhagen; Copenhagen Denmark
| | - Søren Buus
- Department of International Health, Immunology and Microbiology; Faculty of Health Sciences; The Panum Institute; University of Copenhagen; Copenhagen Denmark
| | - Anette Lindhard
- The Fertility Clinic; Department of Gynaecology and Obstetrics; Copenhagen University Hospital (Roskilde) and Roskilde Hospital; Roskilde Denmark
| | - Thomas Vauvert F. Hviid
- Centre for Immune Regulation and Reproductive Immunology (CIRRI); Department of Clinical Biochemistry; Copenhagen University Hospital (Roskilde) and Roskilde Hospital; Roskilde Denmark
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14
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Abstract
Human leukocyte antigen-G (HLA-G) is a low polymorphic nonclassical HLA-I molecule restrictively expressed and with suppressive functions. HLA-G gene products are quite complex, with seven HLA-G isoforms, four membrane bound, and other three soluble isoforms that can suffer different posttranslational modifications or even complex formations. In addition, HLA-G has been described included in exosomes. In this review we will focus on HLA-G biochemistry with special emphasis to the mechanisms that regulate its expression and how the protein modifications affect the quantification in biological fluids.
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15
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Alegre E, Rebmann V, Lemaoult J, Rodriguez C, Horn PA, Díaz-Lagares A, Echeveste JI, González A. In vivo identification of an HLA-G complex as ubiquitinated protein circulating in exosomes. Eur J Immunol 2013; 43:1933-9. [PMID: 23589311 DOI: 10.1002/eji.201343318] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 03/12/2013] [Accepted: 04/11/2013] [Indexed: 12/22/2022]
Abstract
The nonclassical human leukocyte antigen-G (HLA-G) is a tolerogenic molecule that can be released to the circulation by expressing cells. This molecule can form dimers but some other complexed HLA-G forms have been proposed to be present in vivo. Here, we further characterized these other complexed HLA-G forms in vivo. Ascitic and pleural exudates from patients were selected based on positivity for HLA-G by ELISA. Complexed HLA-G was detected in exosomes, which indicates an intracellular origin of these forms. 2D-PAGE analysis of exudates and isolated exosomes showed that these high molecular weight complexes were more heterogeneous than the HLA-G1 expressed by cell cultures. Treatment with deglycosylating enzymes did not change the molecular weight of HLA-G complexes. Immunoblot analysis of exudates and exosomes with an anti-ubiquitin antibody showed that at least some of these structures correspond to ubiquitinated HLA-G. HLA-G ubiquitination could be reproduced in vitro in HLA-G1-transfected cell lines, although with a lower modified/nonmodified protein proportion than in exudates. In summary, we demonstrate new circulating HLA-G forms in vivo that open a new perspective in the study of HLA-G function and analysis.
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Affiliation(s)
- Estibaliz Alegre
- Department of Biochemistry, University Clinic of Navarra, Pamplona, Spain
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16
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HLA-G5 in the blood of leukemia patients and healthy individuals. Leuk Res 2013; 37:139-45. [DOI: 10.1016/j.leukres.2012.10.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 10/15/2012] [Accepted: 10/21/2012] [Indexed: 12/18/2022]
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17
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González A, Rebmann V, LeMaoult J, Horn PA, Carosella ED, Alegre E. The immunosuppressive molecule HLA-G and its clinical implications. Crit Rev Clin Lab Sci 2012; 49:63-84. [PMID: 22537084 DOI: 10.3109/10408363.2012.677947] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Human leukocyte antigen G (HLA-G) is a non-classical major histocompatibility complex (MHC) class I molecule that, through interaction with its receptors, exerts important tolerogenic functions. Its main physiological expression occurs in placenta where it seems to participate in the maternal tolerance toward the fetus. HLA-G has been studied as a marker of pregnancy complications such as abortion or pre-eclapmsia. Although HLA-G is not expressed in most adult tissues, its ectopic expression has been observed in some diseases such as viral infections, autoimmune disorders, and especially cancer. HLA-G neo-expression in cancer is associated with the capability of tumor cells to evade the immune control. In this review, we will summarize HLA-G biology and how it participates in these physiopathological processes. Special attention will be paid to its role as a diagnostic tool and also as a therapeutic target.
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Affiliation(s)
- Alvaro González
- Department of Biochemistry, University Clinic of Navarra, Pamplona, Spain.
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18
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Schmetzer O, Moldenhauer G, Nicolaou A, Schlag P, Riesenberg R, Pezzutto A. Detection of circulating tumor-associated antigen depends on the domains recognized by the monoclonal antibodies used: N-terminal trimmed EpCAM-levels are much higher than untrimmed forms. Immunol Lett 2012; 143:184-92. [DOI: 10.1016/j.imlet.2012.02.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 01/29/2012] [Accepted: 02/14/2012] [Indexed: 10/28/2022]
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19
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HLA-G regulators in cancer medicine: an outline of key requirements. Tumour Biol 2011; 32:1071-86. [DOI: 10.1007/s13277-011-0213-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Accepted: 07/08/2011] [Indexed: 02/07/2023] Open
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