Human umbilical cord mesenchymal stromal cells attenuate pulmonary fibrosis via regulatory T cell through interaction with macrophage
نویسندگان
چکیده
Abstract Background Pulmonary fibrosis (PF) is a growing clinical problem with limited therapeutic options. Human umbilical cord mesenchymal stromal cell (hucMSC) therapy being investigated in trials for the treatment of PF patients. However, little known about underlying molecular and cellular mechanisms hucMSC on PF. In this study, behavior was bleomycin-induced mouse model. Methods The effect hucMSCs lung regeneration determined by detecting Ki67 expression EdU incorporation alveolar type 2 (AT2) fibroblast cells. were transfected to express membrane localized GFP before transplant into lung. tracked staining. Single RNA sequencing performed investigate effects gene profiles macrophages after bleomycin treatment. Results could alleviate collagen accumulation decrease mortality induced bleomycin. transplantation promoted AT2 proliferation inhibited proliferation. By using single sequencing, subcluster interferon-sensitive (IFNSMs) identified infusion. These IFNSMs elevate secretion CXCL9 CXCL10 following infusion recruit more Treg cells injured Conclusions Our study establishes link between hucMSCs, macrophage, Treg, It provides new insights how interact macrophage during repair process play its immunoregulation function.
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ژورنال
عنوان ژورنال: Stem Cell Research & Therapy
سال: 2021
ISSN: ['1757-6512']
DOI: https://doi.org/10.1186/s13287-021-02469-5