4.1. Cell Culture
HaCaT cells were obtained from CLS Cell Lines Service GmbH (Cat # 300493), and Hs27 cells were purchased from ATCC, American Type Culture Collection (CRL-1634). Dulbecco’s Modified Eagle’s Medium (DMEM) was purchased from Gibco (Cat # 11996-065) and ATCC (Cat # 30-2002). HaCaT cells were grown in DMEM (Gibco, Waltham, MA, USA) supplemented with 10% fetal bovine serum (Cat # 16000-044, Gibco), 100 U/mL penicillin, and 100 mg/mL streptomycin (Cat # P4458, Gibco) in 5% CO