NDLI: Transplantation of human endometrial perivascular stem cells with hydroxy saffron yellow A promotes uterine repair in rats

Content Provider	Springer Nature : BioMed Central
Author	Li, Ning Mao, Jialian Wang, Miaomiao Qi, Jiahui Jiang, Zhiwei Li, Yifan Yan, Guijun Hu, Yali Li, Shiyuan Sun, Haixiang Ding, Lijun
Abstract	Background Intrauterine adhesions (IUAs) jeopardise uterine function in women, which is a great challenge in the clinic. Previous studies have shown that endometrial perivascular cells (En-PSCs) can improve the healing of scarred uteri and that hydroxysafflor yellow A (HSYA) promotes angiogenesis. The purpose of this study was to observe whether the combination of En-PSCs with HSYA could improve the blood supply and fertility in the rat uterus after full-thickness injury. Methods En-PSCs were sorted by flow cytometry, and the effect of HSYA on the proliferation and angiogenesis of the En-PSCs was detected using CCK-8 and tube formation assays. Based on a previously reported rat IUA model, the rat uteri were sham-operated, spontaneously regenerated, or treated with collagen-loaded PBS, collagen-loaded HSYA, collagen-loaded En-PSCs, or collagen-loaded En-PSCs with HSYA, and then collected at both 30 and 90 days postsurgery. HE staining and Masson staining were used to evaluate uterine structure and collagen fibre deposition, and immunohistochemical staining for α-SMA and vWF was used to evaluate myometrial regeneration and neovascularization in each group. A fertility assay was performed to detect the recovery of pregnancy function in each group. RNA-seq was performed to determine the potential mechanism underlying En-PSCs/HSYA treatment. Immunofluorescence, tube formation assays, and Western blot were used to validate the molecular mechanism involved. Results The transplantation of Collagen/En-PSCs/HSYA markedly promoted uterine repair in rats with full-thickness injury by reducing fibrosis, increasing endometrial thickness, regenerating myometrium, promoting angiogenesis, and facilitated live births. RNA sequencing results suggested that En-PSCs/HSYA activated the NRG1/ErbB4 signaling pathway. In vitro tube formation experiments revealed that the addition of an ErbB inhibitor diminished the tube formation ability of cocultured En-PSCs and HUVECs. Western blot results further showed that elevated levels of NRG1 and ErbB4 proteins were detected in the Collagen/En-PSCs/HSYA group compared to the Collagen/En-PSCs group. These collective results suggested that the beneficial effects of the transplantation of Collagen/En-PSCs/HSYA might be attributed to the modulation of the NRG1/ErbB4 signaling pathway. Conclusions The combination of En-PSCs/HSYA facilitated morphological and functional repair in rats with full-thickness uterine injury and may promote endometrial angiogenesis by regulating the NRG1/ErbB4 signaling pathway.
Related Links	https://stemcellres.biomedcentral.com/counter/pdf/10.1186/s13287-024-03821-1.pdf
Ending Page	15
Page Count	15
Starting Page	1
File Format	HTM / HTML
ISSN	17576512
DOI	10.1186/s13287-024-03821-1
Journal	Stem Cell Research & Therapy
Issue Number	1
Volume Number	15
Language	English
Publisher	BioMed Central
Publisher Date	2024-07-18
Access Restriction	Open
Subject Keyword	Stem Cells Cell Biology Regenerative Medicine Tissue Engineering Biomedical Engineering and Bioengineering Intrauterine adhesion Hydroxysafflor yellow A Endometrial perivascular cells Angiogenesis Regenerative Medicine/Tissue Engineering
Content Type	Text
Resource Type	Article
Subject	Cell Biology Medicine Biochemistry, Genetics and Molecular Biology Molecular Medicine
Journal Impact Factor	7.1/2023
5-Year Journal Impact Factor	7.9/2023

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