4.7 Article

Effects of Curcuminoids and Surfactant-Formulated Curcumin on Chemo-Resistant Colorectal Cancer

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WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0192415X23500714

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Turmeric; Curcuminoids; Curcumin; Surfactant-Formulation; Chemo-Resistant Colorectal Cancer; Apoptosis; Cell Cycle; Cyclin B1; Adaptive Immunity; Th17

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Colorectal cancer is a major cause of cancer-related death in the U.S., and chronic gut inflammation increases the risk of its development. Turmeric, particularly its active constituent curcumin, has shown potential anticancer properties. In this study, a surfactant-formulated curcumin was used to enhance its bioavailability and its chemopreventive activities were evaluated.
Colorectal cancer (CRC) is a leading cause of cancer-related death in the United States, and chronic gut inflammation is a risk factor for CRC initiation and development. Curcuma longa L., or turmeric, has become one of the most studied herbal medicines in recent years due to its anticancer potentials. It is generally accepted that the major component in turmeric is curcuminoids, and the active constituent in curcuminoids is curcumin. However, unprocessed curcumin is characterized by poor water solubility, which means low bioavailability in humans. To increase the bioavailability of curcumin, in this study, we utilized a novel surfactant-formulated curcumin (CuminUP60 (R)) and evaluated its CRC chemopreventive activities. Compared with the chemo-sensitive CRC cell line HCT-116, the management of the CRC SW-480 cell line is a challenge, since the latter is chemo-resistant. In other words, these cancer cells resist the effects of the chemotherapy. Using the newly formulated CuminUP60 (R) water solution, this study demonstrated its strong antiproliferative effects on the SW-480 cells in a dose- and time-dependent manner. This new formulation induced early apoptosis and arrested the cell cycle in the G2/M phase via the upregulation of cyclin B1. We also observed that this new formulation possessed inhibitory effects on Th17 cell differentiation, which regulates the body's immune response against gut malignancies. In summary, our results exhibited a potential clinical utility of the surfactant-formulated curcumin in chemo-resistant colorectal cancer management.

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