Recombinant apoptosis inhibitor of macrophage protein reduces delayed graft function in a murine model of kidney transplantation.

Bibliographic Details
Title: Recombinant apoptosis inhibitor of macrophage protein reduces delayed graft function in a murine model of kidney transplantation.
Authors: Ji Yun Lee, Shabitha Arumugarajah, Dameng Lian, Natsumi Maehara, Aaron R Haig, Rita S Suri, Toru Miyazaki, Lakshman Gunaratnam
Source: PLoS ONE, Vol 16, Iss 4, p e0249838 (2021)
Publisher Information: Public Library of Science (PLoS), 2021.
Publication Year: 2021
Collection: LCC:Medicine
LCC:Science
Subject Terms: Medicine, Science
More Details: Reperfusion injury following cold and warm ischemia (IRI) is unavoidable during kidney transplantation and contributes to delayed graft function (DGF) and premature graft loss. Death of tubular epithelial cells (TECs) by necrosis during IRI releases pro-inflammatory mediators (e.g. HMGB1), propagating further inflammation (necroinflammation) and tissue damage. Kidney Injury Molecule-1 (KIM-1) is a phagocytic receptor upregulated on proximal TECs during acute kidney injury. We have previously shown that renal KIM-1 protects the graft against transplant associated IRI by enabling TECs to clear apoptotic and necrotic cells, and that recognition of necrotic cells by KIM-1 is augmented in the presence of the opsonin, apoptosis inhibitor of macrophages (AIM). Here, we tested whether recombinant AIM (rAIM) could be used to mitigate transplant associated IRI. We administered rAIM or vehicle control to nephrectomised B6 mice transplanted with a single B6 donor kidney. Compared to grafts in vehicle-treated recipients, grafts from rAIM-treated mice exhibited significantly less renal dysfunction, tubular cell death, tissue damage, tubular obstruction, as well as local and systemic inflammation. Both mouse and human rAIM enhanced the clearance of necrotic cells by murine and human TECs, respectively in vitro. These data support testing of rAIM as a potential therapeutic agent to reduce DGF following kidney transplantation.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1932-6203
Relation: https://doaj.org/toc/1932-6203
DOI: 10.1371/journal.pone.0249838
Access URL: https://doaj.org/article/e8447457793c4630a02a2a06fb763718
Accession Number: edsdoj.8447457793c4630a02a2a06fb763718
Database: Directory of Open Access Journals
More Details
ISSN:19326203
DOI:10.1371/journal.pone.0249838
Published in:PLoS ONE
Language:English