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Depression: 21st Century Solutions + The Dark Side of Wheat

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Abstract Title:

Fucoidan-Vitamin C complex suppresses tumor invasion through the basement membrane, with scarce injuries to normal or tumor cells, via decreases in oxidative stress and matrix metalloproteinases.

Abstract Source:

Int J Oncol. 2009 Nov ;35(5):1183-9. PMID: 19787274

Abstract Author(s):

Yasukazu Saitoh, Yuko Nagai, Nobuhiko Miwa

Article Affiliation:

Yasukazu Saitoh

Abstract:

Fucoidan (Fucdn) and vitamin C (VC) were saturatedly dissolved in water and lyophilized and thoroughly ethanol-rinsed until no detection for supernatant vitamin C to form the Fucdn-VC (1:0.23 wt/wt) inclusion body (Fucdn-VC-IB). Fucdn-VC-IB increased not only VC-stabilizing at 37 degrees C, but also hydroxyl-radical scavenging as shown by ESR/spin-trap method, more markedly than a mere mixture of Fucdn:VC (1:0.23 wt/wt). Invasion of human fibrosarcoma cells HT-1080 through the basement membrane was repressed by Fucdn-VC-IB of non-cytotoxic concentrations without significant inhibition to human skin dermal fibroblasts DUMS-16 cells. Fucdn-VC-IB suppressed the invasiveness-related gelatinases MMP-2/9, and diminished reactive oxygen species inside the cytoplasm around the nucleus, in HT-1080 cells as shown by electrophoretic zymography and the redox indicator NBT assay, respectively. Thus Fucdn-VC-IB markedly exhibits antioxidant and MMP-suppressing activities and preferentially inhibited tumor invasion without cytotoxicity to normal cells, and is suggested as a potent tumor-invasion suppressor.

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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