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Krueger MB, Bonifacius A, Dragon AC, Santamorena MM, Nashan B, Taubert R, Kalinke U, Maecker-Kolhoff B, Blasczyk R, Eiz-Vesper B. In Vitro Profiling of Commonly Used Post-transplant Immunosuppressants Reveals Distinct Impact on Antiviral T-cell Immunity Towards CMV. Transpl Int 2024; 37:12720. [PMID: 38655204 PMCID: PMC11035762 DOI: 10.3389/ti.2024.12720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 03/27/2024] [Indexed: 04/26/2024]
Abstract
Infectious complications, including widespread human cytomegalovirus (CMV) disease, frequently occur after hematopoietic stem cell and solid organ transplantation due to immunosuppressive treatment causing impairment of T-cell immunity. Therefore, in-depth analysis of the impact of immunosuppressants on antiviral T cells is needed. We analyzed the impact of mTOR inhibitors sirolimus (SIR/S) and everolimus (EVR/E), calcineurin inhibitor tacrolimus (TAC/T), purine synthesis inhibitor mycophenolic acid (MPA/M), glucocorticoid prednisolone (PRE/P) and common double (T+S/E/M/P) and triple (T+S/E/M+P) combinations on antiviral T-cell functionality. T-cell activation and effector molecule production upon antigenic stimulation was impaired in presence of T+P and triple combinations. SIR, EVR and MPA exclusively inhibited T-cell proliferation, TAC inhibited activation and cytokine production and PRE inhibited various aspects of T-cell functionality including cytotoxicity. This was reflected in an in vitro infection model, where elimination of CMV-infected human fibroblasts by CMV-specific T cells was reduced in presence of PRE and all triple combinations. CMV-specific memory T cells were inhibited by TAC and PRE, which was also reflected with double (T+P) and triple combinations. EBV- and SARS-CoV-2-specific T cells were similarly affected. These results highlight the need to optimize immune monitoring to identify patients who may benefit from individually tailored immunosuppression.
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Affiliation(s)
- Markus Benedikt Krueger
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Agnes Bonifacius
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
- German Center for Infection Research (DZIF), Braunschweig, Germany
| | - Anna Christina Dragon
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Maria Michela Santamorena
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Björn Nashan
- Clinic for Hepatopancreaticobiliary Surgery and Transplantation, First Affiliated Hospital, University of Science and Technology of China, Hefei, China
| | - Richard Taubert
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Ulrich Kalinke
- TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture Between the Helmholtz Centre for Infection Research and the Hannover Medical School, Hannover, Germany
| | - Britta Maecker-Kolhoff
- German Center for Infection Research (DZIF), Braunschweig, Germany
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
| | - Rainer Blasczyk
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Britta Eiz-Vesper
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
- German Center for Infection Research (DZIF), Braunschweig, Germany
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Mani J, Wang L, Hückelhoven AG, Schmitt A, Gedvilaite A, Jin N, Kleist C, Ho AD, Schmitt M. Definition and characterization of novel HLA-*A02-restricted CD8+ T cell epitopes derived from JCV polyomavirus with clinical relevance. Oncotarget 2018; 8:2485-2500. [PMID: 27705933 PMCID: PMC5356818 DOI: 10.18632/oncotarget.12387] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 09/19/2016] [Indexed: 11/25/2022] Open
Abstract
Human JC and BK polyomaviruses (JCV/BKV) can establish a latent infection without any clinical symptoms in healthy individuals. In immunocompromised hosts infection or reactivation of JCV and BKV can cause lethal progressive multifocal leukoencephalopathy (PML) and hemorrhagic cystitis, respectively. Vaccination with JCV/BKV derived antigen epitope peptides or adoptive transfer of virus-specific T cells would constitute an elegant approach to clear virus-infected cells. Furthermore, donor leukocyte infusion (DLI) is another therapeutic approach which could be helpful for patients with JCV/BKV infections.So far, only few immunodominant T cell epitopes of JCV and BKV have been described and therefore is a fervent need for the definition of novel epitopes. In this study, we identified novel T cell epitopes by screening libraries of overlapping peptides derived from the major capsid protein VP1 of JCV. Virus like particles (VLPs) were used to confirm naturally processing. Two human leucocyte antigen (HLA)-A*02-restricted epitopes were characterized by fine mapping with overlapping peptides and nonamer peptide sequences were identified. Cytokine release profile of the epitope-specific T cells was analyzed by enzyme-linked immunospot (ELISPOT) assays and by flow cytometry. We demonstrated that T cell responses were of polyfunctional nature with the potential of epitope-specific killing and cross-reactivity between JCV and BKV. These novel epitopes might constitute a new potential tool to design effective diagnostic and therapeutic approaches against both polyomaviruses.
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Affiliation(s)
- Jiju Mani
- Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany
| | - Lei Wang
- Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany
| | - Angela G Hückelhoven
- Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany
| | - Anita Schmitt
- Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany
| | - Alma Gedvilaite
- Department of Eukaryote Genetic Engineering, Institute of Biotechnology, Vilnius University, Vilnius, Lithuania
| | - Nan Jin
- Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany.,Department of Hematology, ZhongDa Hospital, Southeast University, Nanjing, P. R. China
| | - Christian Kleist
- Department of Transplantation Immunology, Heidelberg University Hospital, Heidelberg, Germany.,Department of Nuclear Medicine, Heidelberg University Hospital, Heidelberg, Germany
| | - Anthony D Ho
- Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany
| | - Michael Schmitt
- Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany
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Witzke O, Sommerer C, Arns W. Everolimus immunosuppression in kidney transplantation: What is the optimal strategy? Transplant Rev (Orlando) 2016; 30:3-12. [DOI: 10.1016/j.trre.2015.09.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 08/31/2015] [Accepted: 09/01/2015] [Indexed: 12/19/2022]
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Malcherek G, Jin N, Hückelhoven AG, Mani J, Wang L, Gern U, Diehlmann A, Wuchter P, Schmitt A, Chen B, Ho AD, Schmitt M. Mesenchymal stromal cells inhibit proliferation of virus-specific CD8(+) T cells. Leukemia 2014; 28:2388-94. [PMID: 25227910 DOI: 10.1038/leu.2014.273] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 08/01/2014] [Accepted: 09/09/2014] [Indexed: 01/12/2023]
Abstract
Mesenchymal stromal cells (MSCs) possess broad immunomodulatory capacities that are currently investigated for potential clinical application in treating autoimmune disorders. Third-party MSCs suppress alloantigen-induced proliferation of peripheral blood mononuclear cells providing the rationale for clinical use in graft-versus-host disease (GvHD). We confirmed that MSCs strongly inhibited proliferation of CD8(+) T cells in a mixed lymphocyte reaction. However, MSCs also suppressed proliferation of T cells specifically recognizing cytomegalovirus (CMV) and influenza virus. Inhibition was dose dependent, but independent of the culture medium. MSCs inhibited proliferation of specific CD8(+) T cells and the release of IFN-γ by specific CD8(+) T cells for immunodominant HLA-A2- and HLA-B7- restricted antigen epitopes derived from CMV phosphoprotein 65 and influenza matrix protein. This is in contrast to a recently reported scenario where MSCs exert differential effects on alloantigen and virus-specific T cells potentially having an impact on surveillance and prophylaxis of patients treated by MSCs.
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Affiliation(s)
- G Malcherek
- Department of Internal Medicine V, University Clinic Heidelberg, Heidelberg, Germany
| | - N Jin
- 1] Department of Internal Medicine V, University Clinic Heidelberg, Heidelberg, Germany [2] Department of Hematology, ZhongDa Hospital, Southeast University, Nanjing, PR China
| | - A G Hückelhoven
- Department of Internal Medicine V, University Clinic Heidelberg, Heidelberg, Germany
| | - J Mani
- Department of Internal Medicine V, University Clinic Heidelberg, Heidelberg, Germany
| | - L Wang
- Department of Internal Medicine V, University Clinic Heidelberg, Heidelberg, Germany
| | - U Gern
- Department of Internal Medicine V, University Clinic Heidelberg, Heidelberg, Germany
| | - A Diehlmann
- Department of Internal Medicine V, University Clinic Heidelberg, Heidelberg, Germany
| | - P Wuchter
- Department of Internal Medicine V, University Clinic Heidelberg, Heidelberg, Germany
| | - A Schmitt
- Department of Internal Medicine V, University Clinic Heidelberg, Heidelberg, Germany
| | - B Chen
- Department of Hematology, ZhongDa Hospital, Southeast University, Nanjing, PR China
| | - A D Ho
- Department of Internal Medicine V, University Clinic Heidelberg, Heidelberg, Germany
| | - M Schmitt
- Department of Internal Medicine V, University Clinic Heidelberg, Heidelberg, Germany
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