Abstract
Stepwise cancer development involves metastatic migration as well as uncontrolled cell growth. Cancer cells undergo migration and invasion which allow them to translocate within tissues. Tetrahydrocurcumin (THC), a major metabolite of curcumin, exhibits anti‐carcinogenesis and antioxidation in vivo. In the present study, we found that THC and two other metabolites of curcumin, tetrahydrodemethoxycurcumin (THDC) and tetrahydrobisdemethoxycurcumin (THBC), could reduce the survival ratio of human colon adenocarcinoma cells, COLO205, HCT116, and HT29, in a dose‐dependent manner. The results also indicated that the fewer the methoxy groups of the curcumim metabolites, the more the inhibitory effects. However, curcumin metabolites did not trigger apoptotic cell death in COLO205 cells significantly, whereas curcumin did. Our data also strongly suggest a role of THBC in inhibiting cellular migration in HCT116 cells. Taken together, these results demonstrated the anticancer efficacy of curcumin metabolites which provides a potential application basis for the prevention of human colon cancer.Support or Funding InformationThis study was supported by NSC102‐2320‐B‐309‐001‐MY3 to M‐F Lee and NSC100‐2313‐B‐309‐003 to A‐C Cheng.
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