Co-Culture of Bone Marrow Mesenchymal Stem Cells Regulates the Fibrotic Response of Endometrial Stromal Cells

Yilinuer Yiliyasi, Kunduozi Wusainahong, Liping An, Qinghua Liu, ZeLing Fan, JunHua Fan
In: Journal of Biomaterials and Tissue Engineering · 2022 · vol. 12(6) , pp. 1209–1215 · doi:10.1166/jbt.2022.3011 · W4293254952
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Abstract

This study explored the protective effects and mechanisms of bone marrow mesenchymal stem cells (BMSCs) on the fibrotic response of endometrial stromal cells. The endometrial cells were isolated from intrauterine adhesions (IUA) patients and assigned into control group, TGF- β 1 group, BMSC group which was co-cultured with BMSCs in presence of TGF- β 1; Exo group (treated with BMSCs-originated exosomes); Exo-inhibitor group (treated with exosome-specific inhibitors) followed by analysis of α -SMA and Vimentin level, cell viability and expression of TGFBR2, TGF β -1, Fibronectin (FN), α -SMA, Collagen 1 α 1 (Col1a1), Smad2/3 and p-Smad2/3. After TGF- β 1 treatment, cells exhibited higher expression of p-Smad2/3, TGFBR2, FN, TGF-SMA and COL1A1 along with reduced cell proliferation. However, BMSCs-originated exosomes or co-culture with BMSCs reversed these changes which could be inverted by exosome-specific inhibitors. In conclusion, BMSCs-originated exosomes and BMSCs exerted an anti-fibrosis effect, which was possibly through regulation of TGF β 1/Smad2/Smad3 signalling pathway in endometrial stromal cells.

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