In some SC abdominal ASCs from normal-weight PCOS, overexpression of peroxisome proliferator-activated receptor γ (PPARγ) and CCAAT enhancer binding protein a (CEBPa) during adipocyte maturation in vitro accompanies altered dynamic chromatin remodeling, with enrichment of binding motifs for transcription factors of the activator protein-1 (AP-1) subfamily that govern adipocyte differentiation [23]. This evidence concerns the gene CEBPA and polycystic ovary syndrome.