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    Evidence for the Involvement of COX-2/VEGF and PTEN/PI3K/AKT Pathway the Mechanism of Oroxin B Treated Liver Cancer

    Nan-Nan Li1, Xian-Sheng Meng1,2,3★, Yong-Rui Bao1,2,3, Shuai Wang1,2,3, Tian-Jiao Li1,2,3★ Corresponding author

    1. 1School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, China.
    2. 2Component Medicine Engineering Research Center of Liaoning Province, Dalian 116600, China.
    3. 3Liaoning Province Modern Chinese Medicine Research Engineering Laboratory, Dalian 116600, China.

    CORRESPONDENCE

    Xian-Sheng Meng

    School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, China.

    mxsvvv@163.com

    Received: 23-03-2017; Revised: 13-06-2017; Accepted: 10-04-2018.

    Volume 14, Issue 54 · pp. 207–13 · PUBLISHED 10 April 2018 · DOI: 10.4103/pm.pm_119_17

    View on Pharmacogn. Mag. original site ↗

    ABSTRACT

    Background: Oroxin B (OB) is one of flavonoids isolated from traditional Chinese herbal medicine Oroxylum indicum (L.) Vent. Recent studies suggest that flavonoids have obvious anti-liver tumors effect, but the precise molecular mechanism is still unclear. Objective: The current study was performed to investigate the antitumor effects of OB on human hepatoma cell line SMMC-772 and explore the part of molecular mechanisms in this process. Materials and Methods: MTT method, terminal deoxynucleotidyl transferase dUTP nick end labeling assay and flow cytometry were utilized to detect the inhibition of proliferation and the apoptosis after treating OB in of SMMC-7721 cells. The mRNA and proteins expressions of COX-2, vascular endothelial growth factor (VEGF), phosphatidylinositol-3-kinase (PI3K), p-AKT, and PTEN were measured by a real-time polymerase chain reaction and Western Blot method. Results: The results showed that OB inhibited proliferation of SMMC-7721 cell in a dose-dependent manner, and induced its apoptosis. Moreover, OB unregulated PTEN and downregulated COX-2, VEGF, p-AKT, and PI3K. Conclusion: Our results demonstrated that OB significantly inhibits proliferation and induce apoptosis, which may be strongly associated with the inhibiting COX-2/VEGF and PTEN/PI3K/AKT pathway signaling pathway in SMMC-7721 cells, OB potentially be used as a novel therapeutic agent for liver cancer.

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      Li, N., Meng, X., Bao, Y., Wang, S., & Li, T. (2018). Evidence for the Involvement of COX-2/VEGF and PTEN/PI3K/AKT Pathway the Mechanism of Oroxin B Treated Liver Cancer. Pharmacognosy Magazine, 14(54), 207–13. https://doi.org/10.4103/pm.pm_119_17