MMP9 and breast cancer: In addition, we showed that VIM, MSN, TLN1, CTNNB1, CTTN, MMP9, and CDH2 (encoding vimentin, moesin, talin, β-catenin, cortactin, metalloprotease-9, and N-cadherin, respectively) are differentially expressed between RA-resistant and RA-sensitive BC cells.