Fig. 8: MMP1 inhibition enhances SG-induced cell death.

a, b Comparison of apoptotic cell number between MMP1-knockdown and negative control with or without SG treatment in resistant cell lines via Tunnel assays. c, d Comparison of apoptotic cell number between MMP1-knockdown and negative control with or without SG treatment in resistant cell lines via Annexin V-PI assays. e Proposed mechanisms of MMP1-mediated SG resistance in HR + BC.