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Béland S, Désy O, El Fekih R, Marcoux M, Thivierge MP, Desgagné JS, Latulippe E, Riopel J, Wagner E, Rennke HG, Weins A, Yeung M, Lapointe I, Azzi J, De Serres SA. Expression of Class II Human Leukocyte Antigens on Human Endothelial Cells Shows High Interindividual and Intersubclass Heterogeneity. J Am Soc Nephrol 2023; 34:846-856. [PMID: 36758118 PMCID: PMC10125628 DOI: 10.1681/asn.0000000000000095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 01/12/2023] [Indexed: 02/11/2023] Open
Abstract
SIGNIFICANCE STATEMENT Donor-specific antibodies against class II HLA are a major cause of chronic kidney graft rejection. Nonetheless, some patients presenting with these antibodies remain in stable histological and clinical condition. This study describes the use of endothelial colony-forming cell lines to test the hypothesis of the heterogeneous expression of HLA molecules on endothelial cells in humans. Flow cytometry and immunofluorescence staining revealed substantial interindividual and interlocus variability, with HLA-DQ the most variable. Our data suggest that the expression of HLA class II is predicted by locus. The measurement of endothelial expression of HLA class II in the graft could present a novel paradigm in the evaluation of the alloimmune risk in transplantation and certain diseases. BACKGROUND HLA antigens are important targets of alloantibodies and allospecific T cells involved in graft rejection. Compared with research into understanding alloantibody development, little is known about the variability in expression of their ligands on endothelial cells. We hypothesized individual variability in the expression of HLA molecules. METHODS We generated endothelial colony forming cell lines from human peripheral blood mononuclear cells ( n =39). Flow cytometry and immunofluorescence staining were used to analyze the cells, and we assessed the relationship between HLA-DQ expression and genotype. Two cohorts of kidney transplant recipients were analyzed to correlate HLA-DQ mismatches with the extent of intragraft microvascular injury. RESULTS Large variability was observed in the expression of HLA class II antigens, not only between individuals but also between subclasses. In particular, HLA-DQ antigens had a low and heterogeneous expression, ranging from 0% to 85% positive cells. On a within-patient basis, this expression was consistent between endothelial cell colonies and antigen-presenting cells. HLA-DQ5 and -DQ6 were associated with higher levels of expression, whereas HLA-DQ7, -DQ8, and -DQ9 with lower. HLA-DQ5 mismatches among kidney transplant recipients were associated with significant increase in graft microvascular. CONCLUSION These data challenge the current paradigm that HLA antigens, in particular HLA class II, are a single genetic and post-translational entity. Understanding and assessing the variability in the expression of HLA antigens could have clinical monitoring and treatment applications in transplantation, autoimmune diseases, and oncology.
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Affiliation(s)
- Stéphanie Béland
- Transplantation Unit, Renal Division, Department of Medicine, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, Quebec, Canada
| | - Olivier Désy
- Transplantation Unit, Renal Division, Department of Medicine, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, Quebec, Canada
| | - Rania El Fekih
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Meagan Marcoux
- Transplantation Unit, Renal Division, Department of Medicine, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, Quebec, Canada
| | - Marie-Pier Thivierge
- Transplantation Unit, Renal Division, Department of Medicine, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, Quebec, Canada
| | - Jean-Simon Desgagné
- Transplantation Unit, Renal Division, Department of Medicine, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, Quebec, Canada
| | - Eva Latulippe
- Department of Laboratory Medicine, CHU de Québec—Université Laval, Faculty of Medicine, Québec, Quebec, Canada
| | - Julie Riopel
- Department of Laboratory Medicine, CHU de Québec—Université Laval, Faculty of Medicine, Québec, Quebec, Canada
| | - Eric Wagner
- Immunology and Histocompatibility Laboratory, CHU de Québec—Université Laval, Faculty of Medicine, Laval University, Quebec, Quebec, Canada
| | - Helmut G. Rennke
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Astrid Weins
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Melissa Yeung
- HLA Tissue Typing Laboratory, Brigham and Women's Hospital and Children's Hospital, Harvard Medical School, Boston, Massachusetts
- Renal Division, Transplantation Research Center, Brigham and Women's Hospital and Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Isabelle Lapointe
- Transplantation Unit, Renal Division, Department of Medicine, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, Quebec, Canada
| | - Jamil Azzi
- Renal Division, Transplantation Research Center, Brigham and Women's Hospital and Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Sacha A. De Serres
- Transplantation Unit, Renal Division, Department of Medicine, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, Quebec, Canada
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Chandran S, Tang Q. Impact of interleukin-6 on T cells in kidney transplant recipients. Am J Transplant 2022; 22 Suppl 4:18-27. [PMID: 36453710 DOI: 10.1111/ajt.17209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 09/23/2022] [Indexed: 12/02/2022]
Abstract
Interleukin-6 (IL-6), a multifunctional proinflammatory cytokine, plays a key role in T cell activation, survival, and differentiation. Acting as a switch that induces the differentiation of naïve T cells into Th17 cells and inhibits their development into regulatory T cells, IL-6 promotes rejection and abrogates tolerance. Therapies that target IL-6 signaling include antibodies to IL-6 and the IL-6 receptor and inhibitors of janus kinases; several of these therapeutics have demonstrated robust clinical efficacy in autoimmune and inflammatory diseases. Clinical trials of IL-6 inhibition in kidney transplantation have focused primarily on its effects on B cells, plasma cells, and HLA antibodies. In this review, we summarize the impact of IL-6 on T cells in experimental models of transplant and describe the effects of IL-6 inhibition on the T cell compartment in kidney transplant recipients.
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Affiliation(s)
- Sindhu Chandran
- Department of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Qizhi Tang
- Department of Surgery, Diabetes Center, Gladstone-UCSF Institute of Genome Immunology, University of California San Francisco, San Francisco, California, USA
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Endothelial colony forming cells generated from cryopreserved peripheral blood mononuclear cells. Hum Immunol 2021; 82:309-314. [PMID: 33648804 DOI: 10.1016/j.humimm.2021.02.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 02/12/2021] [Accepted: 02/15/2021] [Indexed: 01/06/2023]
Abstract
Derivation of endothelial colony forming cells (ECFCs) from peripheral blood mononuclear cells (PBMCs) is a technique that could provide access to donor endothelial cells to study donor endothelium/recipient immune cells interactions. The success rate of ECFC colony formation from cryopreserved PBMCs has not been reported. We used biobanked PBMCs and studied the yield of ECFC generation. Endothelial phenotype was confirmed with CD31, CD146, CD309, CD34, CD14 and CD11c staining by flow cytometry and VE-cadherin, von Willebrand factor and Dil-Ac-LDL by fluorescent microscopy. Functionality was tested by endothelial cell tube-based formation assay. The success rate of ECFC generation was 28%. Freezing time was not a predictor of ECFC generation while a shorter time on dialysis and living transplant were significant determinants. These data suggest that it is possible to generate ECFCs from cryopreserved PBMCs, which is a potentially useful option for the longitudinal assessment of alloimmune response in transplantation.
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ČURNOVÁ L, MEZEROVÁ K, ŠVACHOVÁ V, FIALOVÁ M, NOVOTNÝ M, ČEČRDLOVÁ E, VIKLICKÝ O, STŘÍŽ I. Up-Regulation of CD163 Expression in Subpopulations of Blood Monocytes After Kidney Allograft Transplantation. Physiol Res 2020; 69:885-896. [DOI: 10.33549/physiolres.934531] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
M2 macrophages expressing CD163 are known to suppress immune responses but have been also found in biopsies of patients with chronic kidney allograft injury associated with interstitial fibrosis. The aim of our study was to evaluate the expression of CD163 in blood monocytes, precursors of tissue macrophages, in kidney allograft recipients with uncomplicated outcome (n=94) compared with those developing acute rejection (n=44). Blood samples were collected before the transplantation and at 1 week, 1 month and 1 year. The expression of CD163 increased during the first week after the transplantation not only in classical (CD14+CD16-) but also in intermediate (CD14+CD16+) and nonclassical (CD14lowCD16+) monocytes in all patients regardless of their rejection status. In patients developing acute rejection, higher pre-transplant expression of CD163 on blood monocytes was found. In vitro experiments confirmed strong induction of membrane CD163 on monocytes together with CD206 (an alternative marker of M2 macrophages) in response to IL-10. We assume from our data that dramatic upregulation of CD163 by peripheral blood monocytes may have a pathophysiological role in early phases after kidney allograft transplantation and high pre-transplant expression of CD163 on blood monocytes might be involved in events leading to acute rejection.
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Affiliation(s)
- L ČURNOVÁ
- Department of Clinical and Transplant Immunology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - K MEZEROVÁ
- Department of Clinical and Transplant Immunology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - V ŠVACHOVÁ
- Department of Clinical and Transplant Immunology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - M FIALOVÁ
- Department of Clinical and Transplant Immunology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - M NOVOTNÝ
- Department of Nephrology, Transplant Center, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - E ČEČRDLOVÁ
- Department of Clinical and Transplant Immunology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - O VIKLICKÝ
- Department of Nephrology, Transplant Center, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - I STŘÍŽ
- Department of Clinical and Transplant Immunology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
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Xiu MX, Liu ZT, Tang J. Screening and identification of key regulatory connections and immune cell infiltration characteristics for lung transplant rejection using mucosal biopsies. Int Immunopharmacol 2020; 87:106827. [PMID: 32791489 PMCID: PMC7417178 DOI: 10.1016/j.intimp.2020.106827] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/03/2020] [Accepted: 07/20/2020] [Indexed: 02/06/2023]
Abstract
This study aimed to explore key regulatory connections underlying lung transplant rejection. The differentially expressed genes (DEGs) between rejection and stable lung transplantation (LTx) samples were screened using R package limma, followed by functional enrichment analysis and protein-protein interaction network construction. Subsequently, a global triple network, including miRNAs, mRNAs, and transcription factors (TFs), was constructed. Furthermore, immune cell infiltration characteristics were analyzed to investigate the molecular immunology of lung transplant rejection. Finally, potential drug-target interactions were generated. In brief, 739 DEGs were found between rejection and stable LTx samples. PTPRC, IL-6, ITGAM, CD86, TLR8, TYROBP, CXCL10, ITGB2, and CCR5 were defined as hub genes. Eight TFs, including STAT1, SPIB, NFKB1, SPI1, STAT5A, RUNX1, VENTX, and BATF, and five miRNAs, including miR-335-5p, miR-26b-5p, miR-124-3p, miR-1-3p, and miR-155-5p, were involved in regulating hub genes. The immune cell infiltration analysis revealed higher proportions of activated memory CD4 T cells, follicular helper T cells, γδ T cells, monocytes, M1 and M2 macrophages, and eosinophils in rejection samples, besides lower proportions of resting memory CD4 T cells, regulatory T cells, activated NK cells, M0 macrophages, and resting mast cells. This study provided a comprehensive perspective of the molecular co-regulatory network underlying lung transplant rejection.
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Affiliation(s)
- Meng-Xi Xiu
- Medical School of Nanchang University, Nanchang, PR China
| | - Zu-Ting Liu
- Medical School of Nanchang University, Nanchang, PR China
| | - Jian Tang
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China.
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Wang F, Wei F, Liu H, Wang X, Wang W, Ouyang Y, Liu J, Chen D, Zang Y. Association of the IL-6 Rs1800796 SNP with Concentration/dose Ratios of Tacrolimus and Donor Liver Function after Transplantation. Immunol Invest 2020; 50:939-948. [PMID: 32674627 DOI: 10.1080/08820139.2020.1793775] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Feng Wang
- Organ Transplantation Center, The Affiliated Hospital of Qingdao University, Qingdao, China
- Institute of Transplantationation Science, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Feili Wei
- Institute of Hepatology, Beijing You’An Hospital, Capital Medical University, Beijing, China
| | - Huan Liu
- Institute of Transplantationation Science, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xin Wang
- Organ Transplantation Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wenjing Wang
- Institute of Hepatology, Beijing You’An Hospital, Capital Medical University, Beijing, China
| | - Yabo Ouyang
- Institute of Hepatology, Beijing You’An Hospital, Capital Medical University, Beijing, China
| | - Jianyu Liu
- Institute of Transplantationation Science, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Dexi Chen
- Institute of Transplantationation Science, The Affiliated Hospital of Qingdao University, Qingdao, China
- Institute of Hepatology, Beijing You’An Hospital, Capital Medical University, Beijing, China
| | - Yunjin Zang
- Organ Transplantation Center, The Affiliated Hospital of Qingdao University, Qingdao, China
- Institute of Transplantationation Science, The Affiliated Hospital of Qingdao University, Qingdao, China
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