دورية أكاديمية
Xenorecognition and costimulation of porcine endothelium-derived extracellular vesicles in initiating human porcine-specific T cell immune responses.
العنوان: | Xenorecognition and costimulation of porcine endothelium-derived extracellular vesicles in initiating human porcine-specific T cell immune responses. |
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المؤلفون: | Li S; Department of Surgery, Duke University School of Medicine, Durham, North Carolina, USA., Anwar IJ; Department of Surgery, Duke University School of Medicine, Durham, North Carolina, USA., Canning AJ; Department of Biomedical Engineering, Duke University School of Medicine, Durham, North Carolina, USA., Vo-Dinh T; Department of Biomedical Engineering, Duke University School of Medicine, Durham, North Carolina, USA., Kirk AD; Department of Surgery, Duke University School of Medicine, Durham, North Carolina, USA; Department of Immunology, Duke University School of Medicine, Durham, North Carolina, USA., Xu H; Department of Surgery, Duke University School of Medicine, Durham, North Carolina, USA. Electronic address: he.xu@duke.edu. |
المصدر: | American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons [Am J Transplant] 2023 Jul; Vol. 23 (7), pp. 904-919. Date of Electronic Publication: 2023 Apr 11. |
نوع المنشور: | Journal Article; Research Support, N.I.H., Extramural |
اللغة: | English |
بيانات الدورية: | Publisher: Elsevier Country of Publication: United States NLM ID: 100968638 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1600-6143 (Electronic) Linking ISSN: 16006135 NLM ISO Abbreviation: Am J Transplant Subsets: MEDLINE |
أسماء مطبوعة: | Publication: 2023- : [New York] : Elsevier Original Publication: Copenhagen : Munksgaard International Publishers, 2001- |
مواضيع طبية MeSH: | T-Lymphocytes* , Endothelial Cells*, Humans ; Swine ; Animals ; Endothelium ; Histocompatibility Antigens Class I ; Immunity |
مستخلص: | Porcine vascular endothelial cells (PECs) form a mechanistic centerpiece of xenograft rejection. Here, we determined that resting PECs release swine leukocyte antigen class I (SLA-I) but not swine leukocyte antigen class-II DR (SLA-DR) expressing extracellular vesicles (EVs) and investigated whether these EVs proficiently initiate xenoreactive T cell responses via direct xenorecognition and costimulation. Human T cells acquired SLA-I + EVs with or without direct contact to PECs, and these EVs colocalized with T cell receptors. Although interferon gamma-activated PECs released SLA-DR + EVs, the binding of SLA-DR + EVs to T cells was sparse. Human T cells demonstrated low levels of proliferation without direct contact to PECs, but marked T cell proliferation was induced following exposure to EVs. EV-induced proliferation proceeded independent of monocytes/macrophages, suggesting that EVs delivered both a T cell receptor signal and costimulation. Costimulation blockade targeting B7, CD40L, or CD11a significantly reduced T cell proliferation to PEC-derived EVs. These findings indicate that endothelial-derived EVs can directly initiate T cell-mediated immune responses, and suggest that inhibiting the release of SLA-I EVs from organ xenografts has the potential to modify the xenograft rejection. We propose a secondary-direct pathway for T cell activation via xenoantigen recognition/costimulation by endothelial-derived EVs. (Copyright © 2023 American Society of Transplantation & American Society of Transplant Surgeons. Published by Elsevier Inc. All rights reserved.) |
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معلومات مُعتمدة: | U01 AI090956 United States AI NIAID NIH HHS |
فهرسة مساهمة: | Keywords: extracellular vesicles; porcine endothelial cells; swine leukocyte antigen; xeno-costimulation; xenorecognition; xenotransplantation |
المشرفين على المادة: | 0 (Histocompatibility Antigens Class I) |
تواريخ الأحداث: | Date Created: 20230413 Date Completed: 20230704 Latest Revision: 20240702 |
رمز التحديث: | 20240702 |
مُعرف محوري في PubMed: | PMC10330644 |
DOI: | 10.1016/j.ajt.2023.04.006 |
PMID: | 37054891 |
قاعدة البيانات: | MEDLINE |
تدمد: | 1600-6143 |
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DOI: | 10.1016/j.ajt.2023.04.006 |