Enhanced Suppression of Disulfide Cross-Linking Micelles Nanocarriers Loaded miR-145 Delivering System via Down-Regulation of MYC and FSCN1 in Colon Cancer Cells.

Colorectal carcinoma is a complex disease accounting for adenoma tumors and an aggressive phenotype, and the third leading cause of cancer death. In the past decades, miRNAs have been associated with molecular pathways of cancer and other diseases. The dysregulated miRNAs play an inhibitory or promoting role in tumorigenesis. Therefore, restoration of tumor-suppressed microRNAs (miRNA) may offer novel therapeutic approaches for cancer treatment. Nevertheless, the poor bioavailability of miRNA due to their rapid enzymatic degradation is a critical barrier in cancer gene therapy. To overcome this dilemma, we designed disulfide cross-linking micelles (DCM) nanocarrier for delivery of miR-145 to colon cancer cells and investigated its therapeutic efficacy