Vaginal epithelial mucosa

The vaginal epithelial mucosa is a non-keratinized stratified squamous epithelium that serves as the primary physical and immunological barrier of the vaginal canal (StatPearls, 2023). Its structure and function are highly dynamic, regulated by systemic estrogen levels which drive the proliferation of epithelial cells and the accumulation of glycogen (NIH, 2022). This glycogen is essential for supporting beneficial Lactobacillus species, which maintain a low pH environment to protect against pathogens (PubMed, 2016). In clinical practice, the vaginal mucosa is both a site of disease, such as in atrophic vaginitis or infections, and a critical route for drug delivery, including hormone replacement therapies and microbicides for HIV prevention (Journal of Reproductive Immunology, 2014). Understanding its permeability and immune composition is vital for developing effective local treatments and protective strategies against sexually transmitted infections (Seminars in Immunopathology, 2016).

Other names

Vaginal epitheliumVaginal mucosaVaginal wall liningStratified squamous epithelium of the vagina

Drugs targeting the vaginal epithelial mucosa primarily act by binding to nuclear receptors like the estrogen receptor to promote cellular proliferation and maturation, or by providing antimicrobial and antiviral effects to protect the mucosal barrier (NIH, 2022; PubMed, 2014).