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- W4294754911 abstract "Objective: The effectiveness of tissue engineering materials combining porcine small intestine submucosa (SIS) and umbilical cord mesenchymal stem cells (UC-MSCs) on uterine injury in female rat after full-thickness uterine resection was evaluated as a basis for clinical treatment of postoperative uterine injury. Methods: After complex culture with SIS and UC-MSCs, cell adhesion, growth, and proliferation were assessed. Before the implantation, a surgical procedure of bilateral full-thickness uterine resection (0.5-2.0 cm long and 0.3 cm wide) was performed to obtain the rat uterine injury model, while the sham-operated rats were used as controls. Hematoxylin-eosin (H&E) staining results and fertility of female rats in each group were assessed to determine the critical resection length of the full-thickness uterine resection. Then SIS or UC-MSCs-SIS were implanted into the female rats from the uterine injury group, followed by assessments of H&E staining, the expression of ki67, α-SMA, and leukemia inhibitory factor (LIF), and fertility to determine the effectiveness of SIS and UC-MSCs-SIS on uterine injury in female rat. Results: At 24, 48, and 72 h, the cells grew progressively on the SIS material. In the 1.5 cm and 2.0 cm groups, the pregnancy rate, proportion of the uterus supporting live embryo growth, number of live embryos, and proportion of live embryos were all significantly less than those in the 0.5 cm and sham-operated groups. In the 2.0 cm group, there was little tissue regeneration at the center of the injury and not conducive to subsequent assessment. The UC-MSCs-SIS and SIS groups were better on morphological development, cell proliferation, LIF expression, and fertility than the control group. Conclusions: UC-MSCs show good adhesion, growth, and proliferation on the SIS scaffold material. The optimal resection length in full-thickness uterine resection on female rat is 1.5 cm. UC-MSCs-SIS is the effective treatment for repairing a injury after the full-thickness resection of the uterus in this research. Impact Statement The acquired severe uterus injury is a serious condition, which prone to uterine adhesions. Postoperative endometrial repairment and prevention of intrauterine adhesion recurrence are two major clinical challenges. Fortunately, the development of tissue engineering technology makes repairing a uterine injury possible. There are two main contributions from this study. First, due to ethical requirements, it is difficult to assess the repairing effect on uterus by invasive experiments in a clinical practice. Therefore, we constructed a full-thickness uterine injury rat model, which allows us to assess the repairing effect of treatments after severe uterine injuries in vivo. Second, it explored the effect of using a combination of and umbilical cord mesenchymal stem cells and small intestine submucosa materials on improving uterine repairments, providing a potential possibility for a future clinical practice." @default.
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- W4294754911 date "2022-11-01" @default.
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- W4294754911 title "Umbilical Cord Mesenchymal Stem Cells Seeded on Small Intestinal Submucosa to Repair the Uterine Wall Injuries" @default.
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- W4294754911 doi "https://doi.org/10.1089/ten.tec.2022.0007" @default.
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