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29 February 2020 : Animal Research  

Regenerative Potential of Menstrual Blood-Derived Stem Cells and Platelet-Derived Growth Factor in Endometrial Injury

Xinrong Wang1ADG, Chengde Wang2BCD, Jianxiang Cong1BC, Hongchu Bao1BCD, Xuemei Liu1CD, Cuifang Hao1EG*

DOI: 10.12659/MSM.919251

Med Sci Monit 2020; 26:e919251

Abstract

BACKGROUND: Endometrial regeneration is essential for normal endometrial function; however, it is unclear whether and how menstrual blood-derived stem cells (MenSCs) and platelet-derived growth factor (PGDF) are associated with this phenomenon. The present study explored this topic.

MATERIAL AND METHODS: EM-E6/E7/hTERT cells were divided into 5 groups: control group, NC group, PDGF group, MenSCs group, and PDGF+MenSCs group. The effects of MenSCs and PDGF on cell proliferation, invasion, and microvascular formation of endometrial epithelium were investigated by CCK-8, Transwell, and tube formation assays, respectively. Mouse endometrial injury models were established and mice were randomly divided into control, model, PDGF, MenSCs, and PDGF+MenSCs groups. Pathological change was examined with hematoxylin and eosin (H&E) staining. Microvessel formation of endometrial epithelium was estimated by detecting the expression of CD34 protein with immunohistochemical (IHC) staining. Western blot analysis was used to detect the activation of Akt and Bad proteins in endometrial tissue.

RESULTS: MenSCs, PDGF, and the combination treatments significantly promoted the proliferation, migration, and tube formation of endometrial epithelium compared to the control and NC group. The combination of MenSCs and PDGF remarkably promoted re-epithelialization and endometrial repair. IHC staining analysis showed significant increases in CD34 expression of the endometrial tissue following treatment with PDGF and MenSCs. The combination treatments also markedly enhanced the phosphorylation of Akt and Bad in endometrial tissue.

CONCLUSIONS: These results suggest that MenSCs and PDGF may be candidate substances for endometrial injury repair.

Keywords: Metrorrhagia, Receptors, Platelet-Derived Growth Factor, Uterine Diseases, Endometrium, Menstruation, Phosphorylation, Platelet-Derived Growth Factor, Proto-Oncogene Proteins c-akt, Regeneration, Stem Cells, bcl-Associated Death Protein

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750