SLC5A5 and breast cancer: Since we aimed to use them as transcriptional modulators of NIS, a non-toxic dose (i.e., IC-30 equivalent or lower) was determined using BC cell lines MCF-7, ZR-75-1, and a TC cell line (ARO), i.e., 10 μM CI-994, 1 μM chidamide, 5 μM MS-275, and 500 nM AR-42 (Figures S1A–S1D).