Effect of stem cell application on Asherman syndrome, an experimental rat model

Area of Science:

• Reproductive Medicine
• Stem Cell Biology
• Tissue Engineering

Background:

• Asherman Syndrome (AS) is characterized by intrauterine adhesions, leading to infertility.
• Current treatments for AS have limitations in effectively restoring endometrial function.
• Stem cell therapy presents a potential regenerative approach for endometrial repair.

Purpose of the Study:

• To evaluate the efficacy of mesenchymal stem cells (MSCs) in inducing endometrial proliferation and angiogenesis in a rat model of Asherman Syndrome.
• To compare the effects of MSCs alone, estrogen alone, and a combination therapy on endometrial regeneration.

Main Methods:

• An Asherman Syndrome model was established in 40 Wistar-Albino rats.
• Rats were treated with either MSC injections, oral estrogen, or a combination of both.
• Histological and immunohistochemical analyses assessed fibrosis, vascularization, inflammation, and markers of cell proliferation (Ki-67, PCNA) and angiogenesis (VEGF).

Main Results:

• All treatment groups showed decreased fibrosis and increased vascularization in the affected uterine horn.
• MSC treatment and estrogen treatment resulted in similar improvements in fibrosis and vascularization markers.
• Combination therapy (MSCs + estrogen) demonstrated superior outcomes with less fibrosis and enhanced expression of Ki-67, PCNA, and VEGF compared to MSCs alone.

Conclusions:

• Mesenchymal stem cells, particularly when combined with estrogen, represent a highly effective therapeutic strategy for endometrial regeneration in Asherman Syndrome.
• This combination therapy promotes endometrial repair by reducing fibrosis and stimulating angiogenesis and cell proliferation.
• The findings suggest a promising alternative for managing Asherman Syndrome and improving reproductive outcomes.