Activating Transcription Factor 4 modulated TGFb-induced aggresiveness in triple negative breast cancer vis SMAD2/3/4 and mTORC2 signaling

Based on the identified stress-independent cellular functions of activating transcription factor 4 (ATF4), we reported enhanced ATF4 levels in MCF10A cells treated with TGFβ1. ATF4 is overexpressed in triple negative breast cancer (TNBC) patients, but its impact on patient survival and the underlying mechanisms remain unknown. We aimed to determine ATF4 effects on breast cancer patient survival and TNBC aggressiveness, and the relationships between TGFβ and ATF4. RNA seq analysis was carried out on 20 Triple Negative Breast Cancer Patient Derived Xenograft models