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Abstract Title:

Astragaloside IV Enhances Cisplatin Chemosensitivity in Non-Small Cell Lung Cancer Cells Through Inhibition of B7-H3.

Abstract Source:

Cell Physiol Biochem. 2016 ;40(5):1221-1229. Epub 2016 Dec 14. PMID: 27960166

Abstract Author(s):

Cheng-Shi He, Yi-Cheng Liu, Zhi-Peng Xu, Peng-Chen Dai, Xiao-Wei Chen, De-Hai Jin

Article Affiliation:

Cheng-Shi He

Abstract:

BACKGROUND: Chemoresistance is a major obstacle to successful chemotherapy for human non-small cell lung cancer (NSCLC). Astragaloside IV, the component of Astragalus membranaceus, has been reported to exhibit anti-inflammation, anti-cancer and immunoregulatory properties. In the present study, we investigated the role of astragaloside IV in the chemoresistance to cisplatin in NSCLC cells.

METHODS: We established astragaloside IV-suppressed NSCLC cell lines including A549, HCC827, and NCI-H1299 and evaluated their sensitivity to cisplatin in vitro. In addition, we examined the mRNA and protein levels of B7-H3 in response to cisplatin-based chemotherapy.

RESULTS: We showed that high doses of astragaloside IV (10, 20, 40 ng/ml) inhibited NSCLC cell growth, whereas low concentrations of astragaloside IV (1, 2.5, 5 ng/ml) had no obvious cytotoxicity on cell viability. Moreover, combined treatment with astragaloside IV significantly increased chemosensitivity to cisplatin in NSCLC cells. On the molecular level, astragaloside IV co-treatment significantly inhibited the mRNA and protein levels of B7-H3 in the presence of cisplatin. In addition, ectopic expression of B7-H3 diminished the sensitization role of astragaloside IV in cellular responses to cisplatin in NSCLC cells.

CONCLUSION: These results demonstrate that astragaloside IV enhances chemosensitivity to cisplatin via inhibition of B7-H3 and that treatment with astragaloside IV and inhibition of B7-H3 serve as potential therapeutic approach for lung cancer patients.

Study Type : In Vitro Study

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