Acta Anatomica Sinica ›› 2020, Vol. 51 ›› Issue (4): 520-527.doi: 10.16098/j.issn.0529-1356.2020.04.008

• Cell and Molecules Biology • Previous Articles     Next Articles

Role of fibroblast growth factor 2 and tanshinoneⅡA in the differentiation of rat bone marrow mesenchymal stem cells into cardiomyocyte-like cells

LI Jiao Lü Yang LIU Yang WANG Hao-yu ZHAO Ya-ru WANG Xue-jiao WANG Hai-ping*   

  1. Department of Histology and Embryology,Hebei North University,Hebei Zhangjiakou 075000,China
  • Received:2019-02-26 Revised:2019-05-31 Online:2020-08-06 Published:2020-08-06
  • Contact: WANG Hai-ping E-mail:haipingmimi@126.com

Abstract:

Objective To investigate the effects of fibroblast growth factor 2 (FGF-2) combined with tanshinoneⅡA on differentiation of rat bone marrow mesenchymal stem cells (BMSCs)into cardiomyocyte-like cells.  Methods BMSCs were isolated and cultured. The cultured cells were identified by flow cytometry, BMSCs were divided into experimental control group, FGF-2 group, tanshinoneⅡA group and the combined induction group. The activity and value of  BMSCs were detected by MTT. The Real-time PCR method was used to detect BMSCs. Expression of early myocardial transcription factors GATA-4 and Nkx2.5; Immunocytochemical staining for detection of connexin43(Cx43)and cardiac troponin-Ⅰ(cTnI);Immunofluorescence staining for detection of desmin and Tm; The expression of desmin and tropomyosin(Tm)was detected by Western blotting.  Results The cell activity and proliferation after induction were good. The expression of GATA-4 and Nkx2.5 in the induction group were stronger than that in the experimental control group, and the difference was statistically significant (P<0.05). The positive expression of Cx43 and cTnI in the induction group increased significantly. The markers of the combined group were the most obvious, and the difference was statistically significant (P<0.05). The expression of Myo-specific protein desmin and Tm in the combined induction group increased significantly, and the difference was statistically significant (P<0.05).  Conclusion Both FGF-2 and tanshinoneⅡA can promote the proliferation of BMSCs and induce the differentiation of BMSCs into cardiomyocyte-like cells. The synergistic effect of the two is better than other groups.

Key words: Bone marrow mesenchymal stem cell, Cardiomyocyte, Fibroblast growth factor 2, TanshinoneⅡA, Flow cytometry, Western blotting, Rat

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