The breast cancer cell lines: MDA-MB-231, MCF-7, BT-549, ZR-75-30, SKBR-3, and T47D (ATCC, Manassas, VA, USA) were maintained as previously described (Zhang et al., 2019 (link)). The normal mammary epithelial cell line MCF-10A was also maintained as previously described (Debnath, Muthuswamy & Brugge, 2003 (link)). All cell lines were cultured in a humidified incubator at 37 °C with an atmosphere containing 5% CO2.
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