经低强度脉冲超声处理的月经血间充质干细胞可通过抑制PI3K/AKT通路修复子宫内膜损伤。

IF 3.7 2区医学 Q1 OBSTETRICS & GYNECOLOGY

Reproductive biomedicine online Pub Date : 2025-03-01 DOI:10.1016/j.rbmo.2024.104486

Shuangying Huang , Chunxia Cheng , Zhibiao Wang , Ruizhen Li , Waixing Li , Kenan Yu , Qiuling Shi , Min Xue

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摘要

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Low-intensity-pulsed-ultrasound-treated menstrual-blood-derived mesenchymal stem cells repair endometrial injury by PI3K/AKT pathway inhibition

Research question

What is the effect and underlying mechanism of low-intensity-pulsed-ultrasound (LIPUS)-treated menstrual-blood-derived mesenchymal stem cells (MenSC) on intrauterine adhesions (IUA)?

Design

First, MenSC were identified and exposed to LIPUS. The proliferation, migration, invasion, cytokine secretion, and ability to differentiate into human endometrial epithelial cells (HEEC) of LIPUS-treated MenSC were characterized. In vitro, human endometrial stromal cells (HESC) were treated with 10 ng/ml transforming growth factor-β1 (TGF-β1) to simulate IUA, and then co-cultured indirectly with LIPUS-treated MenSC. In vivo, IUA rat models were constructed and LIPUS-treated MenSC were transplanted into the uterus. The morphology, structure, and levels of fibrosis and repair-related factors of the uterus were detected. In the mechanism study, insulin-like growth factor-1 (IGF-1) was applied to verify whether the PI3K/AKT pathway participated in the repair of endometrial injury by LIPUS-treated MenSC.

Results

In vitro, LIPUS treatment showed beneficial effects on MenSC by promoting cell proliferation and migration; inhibiting apoptosis; and enhancing the expression of epidermal growth factor, hepatocyte growth factor and vascular endothelial growth factor. It also facilitated the differentiation of MenSC into HEEC while reducing the level of fibrosis in TGF-β1-treated HESC by decreasing the concentrations of p-PI3K and p-AKT. However, these effects were reversed with the use of IGF-1. In vivo, transplantation of LIPUS-treated MenSC resulted in increased uterine length, width and weight. The transplanted cells also improved completeness of the endometrial structure, reduced inflammatory infiltration, increased endometrial thickness and gland abundance, and decreased endometrial fibrosis. Additionally, increased concentations of endometrial-repair-related proteins and receptivity-related markers were observed after transplantation of LIPUS-treated MenSC.

Conclusion

LIPUS-treated MenSC repaired endometrial injury by inhibiting the PI3K/AKT pathway.

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来源期刊

Reproductive biomedicine online 医学-妇产科学

CiteScore

7.20

自引率

7.50%

发文量

391

审稿时长

50 days

期刊介绍： Reproductive BioMedicine Online covers the formation, growth and differentiation of the human embryo. It is intended to bring to public attention new research on biological and clinical research on human reproduction and the human embryo including relevant studies on animals. It is published by a group of scientists and clinicians working in these fields of study. Its audience comprises researchers, clinicians, practitioners, academics and patients. Context: The period of human embryonic growth covered is between the formation of the primordial germ cells in the fetus until mid-pregnancy. High quality research on lower animals is included if it helps to clarify the human situation. Studies progressing to birth and later are published if they have a direct bearing on events in the earlier stages of pregnancy.