Oliver McCallion, Amy R Cross, Matthew O Brook, Conor Hennessy, Ricardo Ferreira, Dominik Trzupek, William R Mulley, Sandeep Kumar, Maria Soares, Ian S Roberts, Peter J Friend, Giovanna Lombardi, Kathryn J Wood, Paul N Harden, Joanna Hester, Fadi Issa
{"title":"调节性T细胞治疗与肾移植中明显的免疫调节性淋巴细胞浸润相关。","authors":"Oliver McCallion, Amy R Cross, Matthew O Brook, Conor Hennessy, Ricardo Ferreira, Dominik Trzupek, William R Mulley, Sandeep Kumar, Maria Soares, Ian S Roberts, Peter J Friend, Giovanna Lombardi, Kathryn J Wood, Paul N Harden, Joanna Hester, Fadi Issa","doi":"10.1016/j.medj.2024.11.014","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Adoptive transfer of autologous regulatory T cells (Tregs) is a promising therapeutic strategy aimed at enabling immunosuppression minimization following kidney transplantation. In our phase 1 clinical trial of Treg therapy in living donor renal transplantation, the ONE Study (ClinicalTrials.gov: NCT02129881), we observed focal lymphocytic infiltrates in protocol kidney transplant biopsies that are not regularly seen in biopsies of patients receiving standard immunosuppression.</p><p><strong>Methods: </strong>We present 7 years of follow-up data on patients treated with adoptive Treg therapy early post-transplantation who exhibited focal lymphocytic infiltrates on a 9-month protocol biopsy. We phenotyped their adoptively transferred and peripherally circulating Treg compartments using CITE-seq and investigated the focal lymphocytic infiltrates with spatial proteomic and transcriptomic technologies.</p><p><strong>Findings: </strong>Graft survival rates were not significantly different between Treg-treated patients and the control reference group. None of the Treg-treated patients experienced clinical rejection episodes or developed de novo donor-specific antibodies, and three of ten successfully reduced their immunosuppression to tacrolimus monotherapy. All Treg-treated patients who underwent a protocol biopsy 9 months post-transplantation exhibited focal lymphocytic infiltrates. Spatial profiling analysis revealed prominent CD20<sup>+</sup> B cell and regulatory (IKZF2, IL10, PD-L1, TIGIT) signatures within cell-therapy-associated immune infiltrates, distinct from the pro-inflammatory myeloid signature associated with rejection biopsies.</p><p><strong>Conclusions: </strong>We demonstrate for the first time that immune cell infiltrates in transplanted kidneys can occur following adoptive Treg therapy in humans, potentially facilitating within-graft T:B cell interactions that promote local immune regulation.</p><p><strong>Funding: </strong>This work was funded by the 7<sup>th</sup> EU Framework Programme, grant/award no. 260687, and the National Institute for Health Research (NIHR).</p>","PeriodicalId":29964,"journal":{"name":"Med","volume":" ","pages":"100561"},"PeriodicalIF":12.8000,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Regulatory T cell therapy is associated with distinct immune regulatory lymphocytic infiltrates in kidney transplants.\",\"authors\":\"Oliver McCallion, Amy R Cross, Matthew O Brook, Conor Hennessy, Ricardo Ferreira, Dominik Trzupek, William R Mulley, Sandeep Kumar, Maria Soares, Ian S Roberts, Peter J Friend, Giovanna Lombardi, Kathryn J Wood, Paul N Harden, Joanna Hester, Fadi Issa\",\"doi\":\"10.1016/j.medj.2024.11.014\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Adoptive transfer of autologous regulatory T cells (Tregs) is a promising therapeutic strategy aimed at enabling immunosuppression minimization following kidney transplantation. In our phase 1 clinical trial of Treg therapy in living donor renal transplantation, the ONE Study (ClinicalTrials.gov: NCT02129881), we observed focal lymphocytic infiltrates in protocol kidney transplant biopsies that are not regularly seen in biopsies of patients receiving standard immunosuppression.</p><p><strong>Methods: </strong>We present 7 years of follow-up data on patients treated with adoptive Treg therapy early post-transplantation who exhibited focal lymphocytic infiltrates on a 9-month protocol biopsy. We phenotyped their adoptively transferred and peripherally circulating Treg compartments using CITE-seq and investigated the focal lymphocytic infiltrates with spatial proteomic and transcriptomic technologies.</p><p><strong>Findings: </strong>Graft survival rates were not significantly different between Treg-treated patients and the control reference group. None of the Treg-treated patients experienced clinical rejection episodes or developed de novo donor-specific antibodies, and three of ten successfully reduced their immunosuppression to tacrolimus monotherapy. All Treg-treated patients who underwent a protocol biopsy 9 months post-transplantation exhibited focal lymphocytic infiltrates. Spatial profiling analysis revealed prominent CD20<sup>+</sup> B cell and regulatory (IKZF2, IL10, PD-L1, TIGIT) signatures within cell-therapy-associated immune infiltrates, distinct from the pro-inflammatory myeloid signature associated with rejection biopsies.</p><p><strong>Conclusions: </strong>We demonstrate for the first time that immune cell infiltrates in transplanted kidneys can occur following adoptive Treg therapy in humans, potentially facilitating within-graft T:B cell interactions that promote local immune regulation.</p><p><strong>Funding: </strong>This work was funded by the 7<sup>th</sup> EU Framework Programme, grant/award no. 260687, and the National Institute for Health Research (NIHR).</p>\",\"PeriodicalId\":29964,\"journal\":{\"name\":\"Med\",\"volume\":\" \",\"pages\":\"100561\"},\"PeriodicalIF\":12.8000,\"publicationDate\":\"2025-05-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Med\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1016/j.medj.2024.11.014\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/12/27 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"MEDICINE, RESEARCH & EXPERIMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Med","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1016/j.medj.2024.11.014","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/12/27 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"MEDICINE, RESEARCH & EXPERIMENTAL","Score":null,"Total":0}
Regulatory T cell therapy is associated with distinct immune regulatory lymphocytic infiltrates in kidney transplants.
Background: Adoptive transfer of autologous regulatory T cells (Tregs) is a promising therapeutic strategy aimed at enabling immunosuppression minimization following kidney transplantation. In our phase 1 clinical trial of Treg therapy in living donor renal transplantation, the ONE Study (ClinicalTrials.gov: NCT02129881), we observed focal lymphocytic infiltrates in protocol kidney transplant biopsies that are not regularly seen in biopsies of patients receiving standard immunosuppression.
Methods: We present 7 years of follow-up data on patients treated with adoptive Treg therapy early post-transplantation who exhibited focal lymphocytic infiltrates on a 9-month protocol biopsy. We phenotyped their adoptively transferred and peripherally circulating Treg compartments using CITE-seq and investigated the focal lymphocytic infiltrates with spatial proteomic and transcriptomic technologies.
Findings: Graft survival rates were not significantly different between Treg-treated patients and the control reference group. None of the Treg-treated patients experienced clinical rejection episodes or developed de novo donor-specific antibodies, and three of ten successfully reduced their immunosuppression to tacrolimus monotherapy. All Treg-treated patients who underwent a protocol biopsy 9 months post-transplantation exhibited focal lymphocytic infiltrates. Spatial profiling analysis revealed prominent CD20+ B cell and regulatory (IKZF2, IL10, PD-L1, TIGIT) signatures within cell-therapy-associated immune infiltrates, distinct from the pro-inflammatory myeloid signature associated with rejection biopsies.
Conclusions: We demonstrate for the first time that immune cell infiltrates in transplanted kidneys can occur following adoptive Treg therapy in humans, potentially facilitating within-graft T:B cell interactions that promote local immune regulation.
Funding: This work was funded by the 7th EU Framework Programme, grant/award no. 260687, and the National Institute for Health Research (NIHR).
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Med is a flagship medical journal published monthly by Cell Press, the global publisher of trusted and authoritative science journals including Cell, Cancer Cell, and Cell Reports Medicine. Our mission is to advance clinical research and practice by providing a communication forum for the publication of clinical trial results, innovative observations from longitudinal cohorts, and pioneering discoveries about disease mechanisms. The journal also encourages thought-leadership discussions among biomedical researchers, physicians, and other health scientists and stakeholders. Our goal is to improve health worldwide sustainably and ethically.
Med publishes rigorously vetted original research and cutting-edge review and perspective articles on critical health issues globally and regionally. Our research section covers clinical case reports, first-in-human studies, large-scale clinical trials, population-based studies, as well as translational research work with the potential to change the course of medical research and improve clinical practice.
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