Endometrial stem cells (ESCs) are multipotent adult stem cells found in the uterine lining (endometrium) and menstrual blood, crucial for its monthly regeneration, repair, and functions like implantation. These cells self-renew and differentiate into various cell types, playing vital roles in reproduction, pregnancy, and postpartum remodeling, while also being implicated in gynecological disorders like endometriosis and fibroids, making them promising for regenerative medicine.
Self-Renewal & Differentiation:
ESCs can multiply and develop into epithelial, stromal, and even endothelial (blood vessel) cells, contributing to tissue repair.
Origin:
They originate from the endometrium’s basal layer and can also come from bone marrow, with sources including menstrual blood (menstrual stem cells).
Regeneration:
They drive the cyclical rebuilding of the endometrium each month, a highly dynamic process.
Reproductive Roles:
Essential for decidualization (preparing for pregnancy), embryo implantation, and uterine remodeling after birth.
Regenerative Medicine:
Used in tissue engineering for repair, as they have immunomodulatory (anti-inflammatory) and angiogenic (blood vessel-forming) properties.
Disease Involvement:
Mutations or abnormal behavior in ESCs are linked to conditions like endometriosis, uterine fibroids, thin endometrium, and endometrial cancer.
Treatment Targets:
They are being studied as potential treatments for infertility, Asherman’s syndrome (uterine scarring), and recurrent pregnancy loss.