PIRs Mediate Innate Myeloid Cell Memory to Nonself MHC Molecules

Autor: Tengfang Li, Khodor I. Abou-Daya, Sebastien Gingras, Hiromi Kubagawa, Peter Nickerson, Matthew L. Nicotra, Wenhao Chen, Jayne S. Danska, Peixiang Lan, Eiji Takayama, Chris Wiebe, Lisa R. Mathews, Steven M. Mortin-Toth, Jianjiao Chen, Heth R. Turnquist, Wentao Liu, Hehua Dai, Wei Chen, Daqiang Zhao, Amanda L. Williams, Andrew J. Friday, Tao Sun, Martin H. Oberbarnscheidt, Fadi G. Lakkis, Xian Chang Li, Mark J. Shlomchik
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Frontiers in Immunology
Science
ISSN: 1664-3224
Popis: Innate immune cells remember Immunological memory is a phenomenon by which immune cells can quickly recognize an antigen that the host has previously encountered. Certain cells of the innate immune system exhibit memory-like responses know as trained immunity. Rapid, antigen-specific secondary (anamnestic) responses were long thought to be the domain of B and T cells. However, Dai et al. report that monocytes and macrophages can acquire memory specific for particular major histocompatibility complex I antigens using paired A-type immunoglobulin-like receptors (PIR-As) (see the Perspective by Dominguez-Andrés and Netea). This pathway contributes to recognition and rejection of allograft-transplanted tissue from a donor of the same species. Genetic depletion or blockade of PIR-As in mice diminished the rejection of kidney and heart allografts. This work, which expands immunological memory to include myeloid cells, points to targets that may improve organ transplantation outcomes in the future. Science , this issue p. 1122 ; see also p. 1052
Databáze: OpenAIRE