Uterine mast cell (uMC)

Uterine mast cells are specialized immune cells located within the endometrial and myometrial layers of the uterus, where they contribute significantly to reproductive physiology and pathology (Menzies et al., 2011, Human Reproduction Update). These cells undergo cyclic fluctuations in density and activation status in response to ovarian hormones, playing key roles in tissue remodeling, angiogenesis, and the regulation of local immune tolerance during pregnancy (Woidacki et al., 2013, Frontiers in Immunology). In pathological states, uterine mast cells are implicated in the development of endometriosis, adenomyosis, and uterine fibroids by releasing pro-inflammatory and pro-fibrotic mediators like tryptase and histamine (Sugimoto et al., 2005, Human Reproduction). They are also involved in the initiation of labor and have been linked to complications such as preterm birth and pre-eclampsia when prematurely or excessively activated. While uterine mast cells represent a cell population rather than a single molecular target, therapeutic strategies often focus on modulating their activity through specific receptors they express, such as the KIT receptor or the high-affinity IgE receptor (FcεRI).

Other names

Uterine-resident mast cellEndometrial mast cellMyometrial mast cellUterine mastocytes

Mast cell stabilization to prevent degranulation; Inhibition of KIT tyrosine kinase signaling to reduce cell survival and activation; Neutralization of circulating IgE to prevent FcεRI-mediated activation.