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

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Abstract Title:

Diosmin induce apoptosis through modulation of STAT-3 signaling in 7,12 dimethylbenz(a)anthracene induced harmster buccal pouch carcinogenesis.

Abstract Source:

Biomed Pharmacother. 2016 Oct ;83:1064-1070. Epub 2016 Aug 19. PMID: 27544550

Abstract Author(s):

Muthusamy Rajasekar, Kathiresan Suresh, Kathiresan Sivakumar

Article Affiliation:

Muthusamy Rajasekar

Abstract:

Diosmin is naturally found flavanoid in many citrus fruits known to have anti-inflammatory, antihyperglycemic, antioxidant and antimutagenic properties. Effects of Diosmin on IL-6/STAT-3 expression in hamster buccal pouch carcinogenesis remain unclear. Alterations in many genes encode crucial proteins, which regulate cell proliferation, differentiation and apoptosis have been implicated in oral cancer. In the present study, we investigated the effect of dietary Diosmin on IL-6/STAT-3 signaling in the 7,12-dimethylbenz[a]anthracene (DMBA)-induced hamster buccal pouch (HBP) carcinogenesis by examining the protein expression of IL-6/STAT-3 and its related genes. Immunoblotting and immunohistochemical analyses revealed that Diosmin (100mg/kgb.w) supplement inhibits key events in signaling especially STAT-3 phosphorylation and subsequent nuclear translocation. Results revealed that inhibition of proliferation and angiogenesis is associated with regulation of the STAT-3 pathway; where Diosmin prevents phosphorylation of JAK-1 which was ascend by IL-6, thereby inhibiting STAT-3 phosphorylation. Consequently, an imbalance in the Bax/Bcl-2 ratio triggered the caspase cascade in favor of apoptosis. Transmission electron microscopic studies proved the effect of Diosmin on ultrastructural changes. Finally our results provide significant evidence that Diosmin prevents the development and progression of HBP carcinomas through the inhibition of IL-6/STAT-3 signaling and its downstream events. Thus, Diosmin functions as a potent inhibitor of tumor development and progression by targeting IL-6/STAT-3 signaling may be an ideal candidate for cancer chemoprevention.

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

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