Interleukin‐2/anti‐interleukin‐2 immune complex attenuates cold ischemia‐reperfusion injury after kidney transplantation by increasing renal regulatory T cells

Abstract Background Cold ischemia‐reperfusion injury (IRI) is an unavoidable complication of kidney transplantation. We investigated the role of regulatory T cells (Treg) in cold IRI and whether the interleukin (IL)‐2/anti‐IL‐2 antibody complex (IL‐2C) can ameliorate cold IRI. Methods We developed a...

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Main Authors: Joon Young Jang, Hyung Woo Kim, Ji‐Jing Yan, Tae Kyeom Kang, Wook‐Bin Lee, Beom Seok Kim, Jaeseok Yang
Format: Article
Language:English
Published: Wiley 2024-03-01
Series:Clinical and Translational Medicine
Subjects:
Online Access:https://doi.org/10.1002/ctm2.1631
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author Joon Young Jang
Hyung Woo Kim
Ji‐Jing Yan
Tae Kyeom Kang
Wook‐Bin Lee
Beom Seok Kim
Jaeseok Yang
author_facet Joon Young Jang
Hyung Woo Kim
Ji‐Jing Yan
Tae Kyeom Kang
Wook‐Bin Lee
Beom Seok Kim
Jaeseok Yang
author_sort Joon Young Jang
collection DOAJ
description Abstract Background Cold ischemia‐reperfusion injury (IRI) is an unavoidable complication of kidney transplantation. We investigated the role of regulatory T cells (Treg) in cold IRI and whether the interleukin (IL)‐2/anti‐IL‐2 antibody complex (IL‐2C) can ameliorate cold IRI. Methods We developed a cold IRI mouse model using kidney transplantation and analyzed the IL‐2C impact on cold IRI in acute, subacute and chronic phases. Results Treg transfer attenuated cold IRI, while Treg depletion aggravated cold IRI. Next, IL‐2C administration prior to IRI mitigated acute renal function decline, renal tissue damage and apoptosis and inhibited infiltration of effector cells into kidneys and pro‐inflammatory cytokine expression on day 1 after IRI. On day 7 after IRI, IL‐2C promoted renal regeneration and reduced subacute renal damage. Furthermore, on day 28 following IRI, IL‐2C inhibited chronic fibrosis. IL‐2C decreased reactive oxygen species‐mediated injury and improved antioxidant function. When IL‐2C was administered following IRI, it also increased renal regeneration with Treg infiltration and suppressed renal fibrosis. In contrast, Treg depletion in the presence of IL‐2C eliminated the positive effects of IL‐2C on IRI. Conclusion Tregs protect kidneys from cold IRI and IL‐2C inhibited cold IRI by increasing the renal Tregs, suggesting a potential of IL‐2C in treating cold IRI. Key Points Interleukin (IL)‐2/anti‐IL‐2 antibody complex attenuated acute renal injury, facilitated subacute renal regeneration and suppressed chronic renal fibrosis after cold ischemia‐reperfusion injury (IRI) by increasing the renal Tregs. IL‐2/anti‐IL‐2 antibody complex decreased reactive oxygen species‐mediated injury and improved antioxidant function. This study suggests the therapeutic potential of the IL‐2/anti‐IL‐2 antibody complex in kidney transplantation‐associated cold IR.
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spelling doaj.art-e9e6609437e44f5fb43a7ce1221eba722024-03-27T09:22:32ZengWileyClinical and Translational Medicine2001-13262024-03-01143n/an/a10.1002/ctm2.1631Interleukin‐2/anti‐interleukin‐2 immune complex attenuates cold ischemia‐reperfusion injury after kidney transplantation by increasing renal regulatory T cellsJoon Young Jang0Hyung Woo Kim1Ji‐Jing Yan2Tae Kyeom Kang3Wook‐Bin Lee4Beom Seok Kim5Jaeseok Yang6Department of Internal Medicine Yonsei University College of Medicine Seoul Republic of KoreaDepartment of Internal Medicine Yonsei University College of Medicine Seoul Republic of KoreaDepartment of Internal Medicine Yonsei University College of Medicine Seoul Republic of KoreaNatural Product Research Center Korea Institute of Science and Technology Gangneung Republic of KoreaNatural Product Research Center Korea Institute of Science and Technology Gangneung Republic of KoreaDepartment of Internal Medicine Yonsei University College of Medicine Seoul Republic of KoreaDepartment of Internal Medicine Yonsei University College of Medicine Seoul Republic of KoreaAbstract Background Cold ischemia‐reperfusion injury (IRI) is an unavoidable complication of kidney transplantation. We investigated the role of regulatory T cells (Treg) in cold IRI and whether the interleukin (IL)‐2/anti‐IL‐2 antibody complex (IL‐2C) can ameliorate cold IRI. Methods We developed a cold IRI mouse model using kidney transplantation and analyzed the IL‐2C impact on cold IRI in acute, subacute and chronic phases. Results Treg transfer attenuated cold IRI, while Treg depletion aggravated cold IRI. Next, IL‐2C administration prior to IRI mitigated acute renal function decline, renal tissue damage and apoptosis and inhibited infiltration of effector cells into kidneys and pro‐inflammatory cytokine expression on day 1 after IRI. On day 7 after IRI, IL‐2C promoted renal regeneration and reduced subacute renal damage. Furthermore, on day 28 following IRI, IL‐2C inhibited chronic fibrosis. IL‐2C decreased reactive oxygen species‐mediated injury and improved antioxidant function. When IL‐2C was administered following IRI, it also increased renal regeneration with Treg infiltration and suppressed renal fibrosis. In contrast, Treg depletion in the presence of IL‐2C eliminated the positive effects of IL‐2C on IRI. Conclusion Tregs protect kidneys from cold IRI and IL‐2C inhibited cold IRI by increasing the renal Tregs, suggesting a potential of IL‐2C in treating cold IRI. Key Points Interleukin (IL)‐2/anti‐IL‐2 antibody complex attenuated acute renal injury, facilitated subacute renal regeneration and suppressed chronic renal fibrosis after cold ischemia‐reperfusion injury (IRI) by increasing the renal Tregs. IL‐2/anti‐IL‐2 antibody complex decreased reactive oxygen species‐mediated injury and improved antioxidant function. This study suggests the therapeutic potential of the IL‐2/anti‐IL‐2 antibody complex in kidney transplantation‐associated cold IR.https://doi.org/10.1002/ctm2.1631cold ischemia‐reperfusion injuryIL‐2/anti‐IL‐2 immune complexkidney transplantationregulatory T cells
spellingShingle Joon Young Jang
Hyung Woo Kim
Ji‐Jing Yan
Tae Kyeom Kang
Wook‐Bin Lee
Beom Seok Kim
Jaeseok Yang
Interleukin‐2/anti‐interleukin‐2 immune complex attenuates cold ischemia‐reperfusion injury after kidney transplantation by increasing renal regulatory T cells
Clinical and Translational Medicine
cold ischemia‐reperfusion injury
IL‐2/anti‐IL‐2 immune complex
kidney transplantation
regulatory T cells
title Interleukin‐2/anti‐interleukin‐2 immune complex attenuates cold ischemia‐reperfusion injury after kidney transplantation by increasing renal regulatory T cells
title_full Interleukin‐2/anti‐interleukin‐2 immune complex attenuates cold ischemia‐reperfusion injury after kidney transplantation by increasing renal regulatory T cells
title_fullStr Interleukin‐2/anti‐interleukin‐2 immune complex attenuates cold ischemia‐reperfusion injury after kidney transplantation by increasing renal regulatory T cells
title_full_unstemmed Interleukin‐2/anti‐interleukin‐2 immune complex attenuates cold ischemia‐reperfusion injury after kidney transplantation by increasing renal regulatory T cells
title_short Interleukin‐2/anti‐interleukin‐2 immune complex attenuates cold ischemia‐reperfusion injury after kidney transplantation by increasing renal regulatory T cells
title_sort interleukin 2 anti interleukin 2 immune complex attenuates cold ischemia reperfusion injury after kidney transplantation by increasing renal regulatory t cells
topic cold ischemia‐reperfusion injury
IL‐2/anti‐IL‐2 immune complex
kidney transplantation
regulatory T cells
url https://doi.org/10.1002/ctm2.1631
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