DHX9 and breast cancer: demonstrated that circRNA‐CREIT promotes doxorubicin sensitivity in TNBC cells by binding to DHX9 and destabilizing PKR.[33] CircBACH1 was shown to enhance the PTX chemoresistance of BC cells by sponging miR‐217 to upregulate the expression of G3BP2.[34] Moreover, Liang et al.