Integrin beta1 mediates the effect of telocytes on mesenchymal stem cell proliferation and migration in the treatment of acute lung injury

Author:

Qi Ruixue1ORCID,Hou Jiayun2345,Yang Ying1,Yang Zhicheng1,Wu Lihong1,Qiao Tiankui1,Wang Xiangdong12345ORCID,Song Dongli2345

Affiliation:

1. Jinshan Hospital Center for Tumor Diagnosis & Therapy, Jinshan Hospital Fudan University Shanghai Medical School Shanghai China

2. Zhongshan Hospital, Department of Pulmonary and Critical Care Medicine, Institute of Clinical Science Fudan University Shanghai Medical School Shanghai China

3. Shanghai Engineering Research Center of AI Technology for Cardiopulmonary Diseases Shanghai China

4. Shanghai Institute of Clinical Bioinformatics Shanghai Key Laboratory of Lung Inflammation and Injury Shanghai China

5. Department of Pulmonary Medicine Shanghai Xuhui Central Hospital, Fudan University Shanghai China

Abstract

AbstractCo‐transplantation of mesenchymal stem cells (MSCs) with telocytes (TCs) was found to have therapeutic effects, although the mechanism of intercellular communication is still unknown. Our current studies aim at exploring the potential molecular mechanisms of TCs interaction and communication with MSCs with a focus on integrin beta1 (ITGB1) in TCs. We found that the co‐culture of MSCs with ITGB1‐deleted TCs (TCITGB1‐ko) changed the proliferation, differentiation and growth dynamics ability of MSC in responses to LPS or PI3K inhibitor. Changes of MSC proliferation and apoptosis were accompanied with the dysregulation of cytokine mRNA expression in MSCs co‐cultured with TCITGB1‐ko during the exposure of PI3Kα/δ/β inhibitor, of which IL‐1β, IL‐6 and TNF‐α increased, while IFN‐γ, IL‐4 and IL‐10 decreased. The responses of PI3K p85, PI3K p110 and pAKT of MSCs co‐cultured with TCITGB1‐ko to LPS or PI3K inhibitor were opposite to those with ITGB1‐presented TCs. The intraperitoneal injection of TCITGB1‐ko, TCvector or MSCs alone, as well as the combination of MSCs with TCITGB1‐ko or TCvector exhibited therapeutic effects on LPS‐induced acute lung injury. Thus, our data indicate that telocyte ITGB1 contributes to the interaction and intercellular communication between MSCs and TCs, responsible for influencing other cell phenomes and functions.

Funder

National Key Research and Development Program of China

Publisher

Wiley

Subject

Cell Biology,Molecular Medicine

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