ABCB5 Identifies Immunoregulatory Dermal Cells.
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Schatton T
Department of Dermatology, Brigham and Women's Hospital, Boston, MA 02115, USA; Transplantation Research Center, Boston Children's Hospital and Brigham and Women's Hospital, Boston, MA 02115, USA.
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Yang J
Transplantation Research Center, Boston Children's Hospital and Brigham and Women's Hospital, Boston, MA 02115, USA; Institute of Organ Transplantation, Huazhong University of Science and Technology, Wuhan 430074, China.
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Kleffel S
Department of Dermatology, Brigham and Women's Hospital, Boston, MA 02115, USA.
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Uehara M
Transplantation Research Center, Boston Children's Hospital and Brigham and Women's Hospital, Boston, MA 02115, USA.
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Barthel SR
Department of Dermatology, Brigham and Women's Hospital, Boston, MA 02115, USA.
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Schlapbach C
Department of Dermatology, Brigham and Women's Hospital, Boston, MA 02115, USA; Department of Dermatology, University of Bern, Bern 3012, Switzerland.
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Zhan Q
Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115, USA.
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Dudeney S
Department of Dermatology, Brigham and Women's Hospital, Boston, MA 02115, USA.
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Mueller H
Department of Dermatology, Brigham and Women's Hospital, Boston, MA 02115, USA.
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Lee N
Department of Dermatology, Brigham and Women's Hospital, Boston, MA 02115, USA.
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de Vries JC
Department of Dermatology and Allergic Diseases, University of Ulm, Ulm 89077, Germany.
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Meier B
Department of Dermatology and Allergic Diseases, University of Ulm, Ulm 89077, Germany.
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Vander Beken S
Department of Dermatology and Allergic Diseases, University of Ulm, Ulm 89077, Germany.
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Kluth MA
Rheacell GmbH & Co. KG, Heidelberg 69120, Germany.
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Ganss C
Rheacell GmbH & Co. KG, Heidelberg 69120, Germany.
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Sharpe AH
Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115, USA; Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA; Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Boston, MA 02115, USA.
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Waaga-Gasser AM
Department of Surgery, University of Würzburg Medical School, Würzburg 97080, Germany.
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Sayegh MH
Transplantation Research Center, Boston Children's Hospital and Brigham and Women's Hospital, Boston, MA 02115, USA.
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Abdi R
Transplantation Research Center, Boston Children's Hospital and Brigham and Women's Hospital, Boston, MA 02115, USA.
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Scharffetter-Kochanek K
Department of Dermatology and Allergic Diseases, University of Ulm, Ulm 89077, Germany.
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Murphy GF
Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115, USA.
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Kupper TS
Department of Dermatology, Brigham and Women's Hospital, Boston, MA 02115, USA.
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Frank NY
Transplantation Research Center, Boston Children's Hospital and Brigham and Women's Hospital, Boston, MA 02115, USA; Department of Medicine, Boston VA Healthcare System, West Roxbury, MA 02132, USA; Division of Genetics, Brigham and Women's Hospital, Boston, MA 02115, USA.
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Frank MH
Department of Dermatology, Brigham and Women's Hospital, Boston, MA 02115, USA; Transplantation Research Center, Boston Children's Hospital and Brigham and Women's Hospital, Boston, MA 02115, USA; School of Medical Sciences, Edith Cowan University, Joondalup, WA 6027, Australia. Electronic address: markus.frank@childrens.harvard.edu.
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English
Cell-based strategies represent a new frontier in the treatment of immune-mediated disorders. However, the paucity of markers for isolation of molecularly defined immunomodulatory cell populations poses a barrier to this field. Here, we show that ATP-binding cassette member B5 (ABCB5) identifies dermal immunoregulatory cells (DIRCs) capable of exerting therapeutic immunoregulatory functions through engagement of programmed cell death 1 (PD-1). Purified Abcb5(+) DIRCs suppressed T cell proliferation, evaded immune rejection, homed to recipient immune tissues, and induced Tregs in vivo. In fully major-histocompatibility-complex-mismatched cardiac allotransplantation models, allogeneic DIRCs significantly prolonged allograft survival. Blockade of DIRC-expressed PD-1 reversed the inhibitory effects of DIRCs on T cell activation, inhibited DIRC-dependent Treg induction, and attenuated DIRC-induced prolongation of cardiac allograft survival, indicating that DIRC immunoregulatory function is mediated, at least in part, through PD-1. Our results identify ABCB5(+) DIRCs as a distinct immunoregulatory cell population and suggest promising roles of this expandable cell subset in cellular immunotherapy.
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Open access status
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gold
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https://sonar.ch/global/documents/278589
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