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. 2013 Dec;62:420-6.
doi: 10.1016/j.fct.2013.09.008. Epub 2013 Sep 12.

Chemical Composition of Total Flavonoids From Salvia Chinensia Benth and Their Pro-Apoptotic Effect on Hepatocellular Carcinoma Cells: Potential Roles of Suppressing Cellular NF-κB Signaling

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Chemical Composition of Total Flavonoids From Salvia Chinensia Benth and Their Pro-Apoptotic Effect on Hepatocellular Carcinoma Cells: Potential Roles of Suppressing Cellular NF-κB Signaling

Meixian Xiang et al. Food Chem Toxicol. .

Abstract

Salvia chinensia Benth (S. chinensia) is a medical plant that has been traditionally applied for centuries in the treatment of malignant diseases including hepatocellular carcinoma (HCC). However, the scientific basis underlying its anti-HCC activity has not been fully established. In this study, the chemical profiles of total flavonoids from S. chinensia (TFSC) were explored. Thirteen compounds which constituted the major components of TFSC were separated and identified. Flow cytometry analysis and caspase activity assays showed that TFSC dose-dependently induced HepG2 and Huh-7 HCC cell apoptosis. TFSC was also shown to substantially suppress NF-κB activity in HCC cells. Moreover, TFSC significantly repressed transplanted murine H22 ascitic hepatic cancer cell growth in vivo. Further studies revealed that TFSC induced HCC cell apoptosis and inhibited expressional levels of NF-κB responsive genes in transplanted tumor tissues. In addition, the toxic impact of TFSC on tumor-bearing mice was undetectable. These results indicate that TFSC induces HCC cell apoptosis both in vitro and in vivo. The suppression of cellular NF-κB activity is implicated in the TFSC-mediated HCC cell apoptosis.

Keywords: Apoptosis; Flavonoids; HCC; Hepatocellular carcinoma; NF-κB; Nuclear factor κB; S. chinensia; Salvia chinensia Benth; TFSC; hepatocellular carcinoma; nuclear factor κB; total flavonoids from S. chinensia.

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