MBD2 and cancer: We previously identified that ROS‐dependent expression of epigenetic reader methyl‐CpG‐binding domain protein 2 (MBD2), specifically the alternative mRNA splicing variant MBD2_v2, is crucial for maintenance and expansion of self‐renewing cancer stem cell‐like cells (CSCs) in TNBC cell cultures (Bao et al., 2017).