Dibutyl Phthalate (DBP) Induces Cervical Injury and Promotes Malignant Transformation of Cervical Epithelial Cells. (PubMed, Food Chem Toxicol)
Short-term DBP exposure (mice: 10-50 mg/kg/day; HcerEpic cells: 100-400 μM) induced cervical injury/oxidative stress, suppressed NRF2, and activated MAPK/NF-κB; N-acetylcysteine (NAC) supplementation mitigated damages. Long-term exposure to environmentally relevant DBP concentrations (10-7 M) promoted HcerEpic cell malignant transformation (e.g., enhanced proliferation, migration, invasion, epithelial-mesenchymal transition) via activation of the TGF-β/Smad2/3 and MAPK pathways, with in vivo tumorigenicity validated in nude mice. In conclusion, our findings not only elucidate the molecular mechanisms underlying DBP-induced cervical injury and malignant transformation, but also provide theoretical evidence for evaluating the health risks of phthalates (PAEs) and guiding prevention strategies for environmental pollutant-related female reproductive malignancies.