Open AccessSystematic Study of Immune Cell Diversity in ischemic postconditioning Using High-Dimensional Single-Cell Analysis with Mass Cytometry
Author(s) -
Yang Yao,
Yaning Li,
Weihua Ni,
Zhijun Li,
Lei Feng,
Yan Wang,
Jingjing Meng,
Heng Zhao
Publication year - 2021
Publication title -
aging and disease
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.808
H-Index - 54
ISSN - 2152-5250
DOI - 10.14336/ad.2020.1115
Subject(s) - mass cytometry , single cell analysis , cell , flow cytometry , immune system , diversity (politics) , medicine , cytometry , immunology , biology , biochemistry , political science , gene , law , phenotype
Ischemic postconditioning (IPostC) is a concept of ischemic stroke treatment, in which several cycles of brief reocclusion after reperfusion are repeated. It is essential to have an accurate understanding of the immune response in IPostC. By using high parametric single-cell mass cytometry, immune cell subsets and characterize their unique functions from ischemic brain and peripheral blood were identified after IPostC. This study enabled us to better understand the immune cell phenotypical and functional characteristics in ischemic brain and peripheral blood at the single-cell and protein levels. Since some cell surface markers can serve as functional markers, reflecting the degree of inflammation, the cell surface marker intensity among different groups was analyzed. The results showed that downregulation of 4E-BP1 and p38 of Microglia and MoDM in the ischemic brain was involved in IPostC-induced protection. In the peripheral blood, downregulation of P38 of CD4 T cell and Treg has also participated in IPostC-induced protection.