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Abstract Title:

Demethoxycurcumin Suppresses Proliferation, Migration, and Invasion of Human Brain Glioblastoma Multiforme GBM 8401 CellsPI3K/Akt Pathway.

Abstract Source:

Anticancer Res. 2021 Apr ;41(4):1859-1870. PMID: 33813391

Abstract Author(s):

Ruei-Yu Su, Shu-Ching Hsueh, Cheng-Yen Chen, Ming-Jie Hsu, Hsu-Feng Lu, Shu-Fen Peng, Po-Yuan Chen, Jin-Cherng Lien, Yung-Liang Chen, Fu-Shin Chueh, Jing-Gung Chung, Ming-Yang Yeh, Yi-Ping Huang

Article Affiliation:

Ruei-Yu Su

Abstract:

BACKGROUND/AIM: Demethoxycurcumin (DMC), one of the derivatives of curcumin, has been shown to induce apoptotic cell death in many human cancer cell lines. However, there is no available information on whether DMC inhibits metastatic activity in human glioblastoma cancer cells in vitro.

MATERIALS AND METHODS: DMC at 1.0-3.0μM significantly decreased the proliferation of GBM 8401 cells; thus, we used 2.0 μM for further investigation regarding anti-metastatic activity in human glioblastoma GBM 8401 cells.

RESULTS: The internalized amount of DMC has reached the highest level in GBM 8401 cells after 3 h treatment. Wound healing assay was used to determine cell mobility and results indicated that DMC suppressed cell movement of GBM 8401 cells. The transwell chamber assays were used for measuring cell migration and invasion and results indicated that DMC suppressed cell migration and invasion in GBM 8401 cells. Gelatin zymography assay was used to examine gelatinolytic activity (MMP-2) in conditioned media of GBM 8401 cells treated by DMC and results demonstrated that DMC significantly reduced MMP-2 activity. Western blotting showed that DMC reduced the levels of p-EGFR, GRB2, Sos1, p-Raf, MEK, p-ERK1/2, PI3K, p-Akt/PKBα, p-PDK1, NF-κB, TIMP-1, MMP-9, MMP-2, GSK3α/β, β-catenin, N-cadherin, and vimentin, but it elevated Ras and E-cadherin at 24 h treatment.

CONCLUSION: DMC inhibited cancer cell migration and invasion through inhibition of PI3K/Akt and NF-κB signaling pathways in GBM 8401 cells. We suggest that DMC may be used as a novel anti-metastasis agent for the treatment of human glioblastoma cancer in the future.

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