FASN and squamous cell intraepithelial neoplasia: High FASN levels promote cell proliferation, invasion, tumor progression, and drug resistance in female cancers, including breast cancer [118,119,120,121] ovarian cancer [122,123] and CC [124,125,126] FASN expression was progressively higher in cervical low-grade squamous intraepithelial lesions (LSIL) and in high-grade squamous intraepithelial lesions (HSIL), and CC samples, indicating a possible role of this enzyme in cervical carcinogenesis [124].