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Eikmans M, van der Keur C, Anholts JDH, Drabbels JJM, van Beelen E, de Sousa Lopes SMC, van der Hoorn ML. Primary Trophoblast Cultures: Characterization of HLA Profiles and Immune Cell Interactions. Front Immunol 2022; 13:814019. [PMID: 35634345 PMCID: PMC9136060 DOI: 10.3389/fimmu.2022.814019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 04/11/2022] [Indexed: 11/29/2022] Open
Abstract
Introduction Trophoblasts are essential in fetal-maternal interaction during pregnancy. The goal was to study HLA profiles of primary trophoblasts derived from placentas, and to investigate their usefulness in studying interaction with immune cells. Methods After enzymatic digestion of first-trimester placental tissue from seven donors (6-9 weeks gestation) and trophoblast enrichment we cultured cytotrophoblasts (CTB) in stem cell medium. CTB were differentiated into EVT in a Matrigel-containing medium. A subset of CTB/EVT was profiled for microRNA levels. Expression of classical HLA molecules and of HLA-G was studied by flow cytometry, qPCR, and ELISA. Secondary trophoblast cell lines JAR and JEG-3 were studied as controls. Lymphocytes were investigated during co-culturing with EVT. Results The trophoblasts could be easily maintained for several passages, upregulated classical trophoblast markers (GATA3, TFAP2C, chromosome-19 microRNAs), and upon differentiation to EVT they were selective in expressing HLA-C. EVT showed increasing expression of total HLA-G, an increasing proportion of HLA-G1 over G2- and G3 isoforms, and elevated excretion of soluble HLA-G. These features were distinct from those of the secondary trophoblast cell lines. TNF-α and IL-8 represented the most abundantly secreted cytokines by CTB, but their levels were minimal in EVT cultures. As proof of principle, we showed that EVT affect lymphocytes in three-day co-cultures (n=4) by decreasing activation marker HLA-DR. Conclusion We verified the possibility culturing trophoblasts from first-term placentas, and their capability of differentiating to HLA-G expressing EVT. This culture model better represents the in-vivo situation than previously studied secondary trophoblast cell lines and enables mechanistic studies of fetal-maternal interactions.
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Affiliation(s)
- Michael Eikmans
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
- *Correspondence: Michael Eikmans,
| | - Carin van der Keur
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | | | - Jos J. M. Drabbels
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Els van Beelen
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
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2
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Wu CL, Caumartin J, Amodio G, Anna F, Loustau M, Gregori S, Langlade-Demoyen P, LeMaoult J. Inhibition of iNKT Cells by the HLA-G-ILT2 Checkpoint and Poor Stimulation by HLA-G-Expressing Tolerogenic DC. Front Immunol 2021; 11:608614. [PMID: 33505397 PMCID: PMC7832389 DOI: 10.3389/fimmu.2020.608614] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/23/2020] [Indexed: 12/25/2022] Open
Abstract
Invariant Natural Killer T (iNKT) cells are a small and distinct population of T cells crucial in immunomodulation. After activation by alpha-GalactosylCeramide (αGC), an exogenic glycolipid antigen, iNKT cells can rapidly release cytokines to enhance specific anti-tumor activity. Several human clinical trials on iNKT cell-based anti-cancer are ongoing, however results are not as striking as in murine models. Given that iNKT-based immunotherapies are dependent mainly on antigen-presenting cells (APC), a human tolerogenic molecule with no murine homolog, such as Human Leucocyte Antigen G (HLA-G), could contribute to this discrepancy. HLA-G is a well-known immune checkpoint molecule involved in fetal-maternal tolerance and in tumor immune escape. HLA-G exerts its immunomodulatory functions through the interaction with immune inhibitory receptors such as ILT2, differentially expressed on immune cell subsets. We hypothesized that HLA-G might inhibit iNKT function directly or by inducing tolerogenic APC leading to iNKT cell anergy, which could impact the results of current clinical trials. Using an ILT2-transduced murine iNKT cell line and human iNKT cells, we demonstrate that iNKT cells are sensitive to HLA-G, which inhibits their cytokine secretion. Furthermore, human HLA-G+ dendritic cells, called DC-10, failed at inducing iNKT cell activation compared to their autologous HLA-G‒ DCs counterparts. Our data show for the first time that the HLA-G/ILT2 ICP is involved in iNKT cell function modulation.
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Affiliation(s)
- Ching-Lien Wu
- CEA, DRF-Francois Jacob Institute, Research Division in Hematology and Immunology (SRHI), Saint-Louis Hospital, Paris, France.,Université de Paris, IRSL, UMRS 976, Paris, France.,Invectys, Paris, France
| | | | - Giada Amodio
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | | | - Silvia Gregori
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | - Joel LeMaoult
- CEA, DRF-Francois Jacob Institute, Research Division in Hematology and Immunology (SRHI), Saint-Louis Hospital, Paris, France.,Université de Paris, IRSL, UMRS 976, Paris, France
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3
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Lin A, Zhang X, Zhang RL, Zhang JG, Zhou WJ, Yan WH. Clinical Significance of Potential Unidentified HLA-G Isoforms Without α1 Domain but Containing Intron 4 in Colorectal Cancer Patients. Front Oncol 2018; 8:361. [PMID: 30234020 PMCID: PMC6131604 DOI: 10.3389/fonc.2018.00361] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 08/16/2018] [Indexed: 12/11/2022] Open
Abstract
The ectopic HLA-G expression in malignancies has been extensively explored and clinical significance of the molecule was widely acknowledged. Besides previously well-documented seven isoforms (HLA-G1~-G7), other novel isoforms of HLA-G have been reported but their clinical relavenace remians evaluated. In this study, lesion HLA-G expression in 379 case-matched serial section primary colorectal cancers (CRC) were evaluated with mAb 4H84 (recognizing an epitope in HLA-G α1 domain), and mAb 5A6G7 (recognizing an epitope encoded by intron 4), respectively. Data showed that HLA-G positive staining with mAbs 4H84 and 5A6G7 was 70.7 and 60.4%, respectively. When percentage of HLA-G expression detected with mAb 4H84 subtracted that with mAb 5A6G7, the difference (ΔHLA-G) with negative (ΔHLA-Gneg), comparable (ΔHLA-Gcom) and positive (ΔHLA-Gpos) were observed in 64 (16.9%), 159 (42.0%), and 156 (41.2%) cases, respectively. Noteworthy, unexpected immunostaining was observed in 44 (11.6%) lesions that no staining was detected with mAb 4H84 but positive with mAb 5A6G7 (4H84neg5A6G7pos). This staining pattern was unpredictable because all seven known HLA-G isoforms containing the α 1 domain could be recognized by the mAb 4H84. Moreover, patients with ΔHLA-Gneg had obviously better survival than those with ΔHLA-Gcom and ΔHLA-Gpos (p = 0.017), and ΔHLA-G could be an independent prognostic factor for CRC patients (p = 0.008). Our findings provides the first report that potential unidentified HLA-G isoforms is of distinct clinical significance in CRC patients.
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Affiliation(s)
- Aifen Lin
- Biological Resource Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, China
| | - Xia Zhang
- Biological Resource Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, China
| | - Rui-Li Zhang
- Department of Gastrointestinal Surgery, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, China
| | - Jian-Gang Zhang
- Biological Resource Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, China
| | - Wen-Jun Zhou
- Biological Resource Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, China
| | - Wei-Hua Yan
- Medical Research Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, China
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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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Carlini F, Picard C, Garulli C, Piquemal D, Roubertoux P, Chiaroni J, Chanez P, Gras D, Di Cristofaro J. Bronchial Epithelial Cells from Asthmatic Patients Display Less Functional HLA-G Isoform Expression. Front Immunol 2017; 8:6. [PMID: 28303134 PMCID: PMC5333864 DOI: 10.3389/fimmu.2017.00006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 01/03/2017] [Indexed: 11/13/2022] Open
Abstract
Not all asthmatic patients adequately respond to current available treatments, such as inhaled corticosteroids or omalizumab®. New treatments will aim to target the bronchial epithelium-immune response interaction using different pathways. HLA-G is involved in immunomodulation and may promote epithelial cell differentiation and proliferation. HLA-G protein has several isoforms generated by alternative splicing that might have differential functionalities. HLA-G protein expression and genetic polymorphisms have been reported to be associated with asthma. Our hypothesis is that bronchial epithelium from asthmatic patients displays less functional HLA-G isoforms. HLA-G transcriptional isoforms were quantified by real-time PCR in human bronchial epithelium cells (HBEC) grown in air-liquid interface culture obtained from five healthy controls (HC), seven patients with mild asthma (MA), and seven patients with severe asthma (SA). They were re-differentiated, and IL-13 exposure was used as a proxy for a pro-inflammatory cytokine. HLA-G protein expression was assessed by western blot analysis. HLA-G allele was typed by direct sequencing. Our results showed that both MA and SA display less functional HLA-G isoforms than HC (p < 0.05); in vitro HBEC re-differentiation from SA displays a particular isoform expression profile compared to MA and HC (p = 0.03); HLA-G*01:06 frequency in MA and SA was significantly higher than in the healthy population (p = 0.03 and p < 0.001, respectively); and IL-13 exposure had no impact on HLA-G expression. Our results support that an impaired expression of HLA-G isoforms in asthmatic patients could contribute to the loss of inflammation control and epithelium structural remodeling. Therefore, HLA-G might be an interesting alternative target for asthmatic patients not adequately responding to current drugs.
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Affiliation(s)
- Federico Carlini
- Etablissement Français du Sang Alpes Méditerranée , Marseille , France
| | - Christophe Picard
- Etablissement Français du Sang Alpes Méditerranée, Marseille, France; Aix-Marseille Univ, CNRS, EFS, ADES, "Biologie des Groupes Sanguins", Marseille, France
| | - Céline Garulli
- Aix-Marseille Univ, INSERM U1067 CNRS UMR 7333 , Marseille , France
| | | | - Pierre Roubertoux
- INSERM U491, Génétique Médicale et Développement, Aix-Marseille Université , Marseille , France
| | - Jacques Chiaroni
- Etablissement Français du Sang Alpes Méditerranée, Marseille, France; Aix-Marseille Univ, CNRS, EFS, ADES, "Biologie des Groupes Sanguins", Marseille, France
| | - Pascal Chanez
- Aix-Marseille Univ, INSERM U1067 CNRS UMR 7333, Marseille, France; Clinique des Bronches, Allergie et Sommeil, AP-HM Hôpital Nord, Marseille, France
| | - Delphine Gras
- Aix-Marseille Univ, INSERM U1067 CNRS UMR 7333 , 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
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6
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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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