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Echinacoside suppresses dexamethasone‑induced growth inhibition and apoptosis in osteoblastic MC3T3‑E1 cells

  • Authors:
    • Sibo Li
    • Haitao Jiang
    • Xiaohua Gu
  • View Affiliations / Copyright

    Affiliations: Department of Orthopedics and Traumatology, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, P.R. China
  • Pages: 643-648
    |
    Published online on: May 18, 2018
       https://doi.org/10.3892/etm.2018.6199
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Abstract

Glucocorticoids (GCs) are widely used to treat chronic diseases. Prolonged and/or overdose administration of GCs has many side‑effects to human health including GC‑induced osteoporosis (GIOP). In this investigation, the objective was to assess the influence that echinacoside (ECH) exerts upon dexamethasone‑treated murine osteoblastic MC3T3‑E1 cells. We found that ECH (5, 10, 20 and 40 mg/l) inhibited dexamethasone (1,000 nM)‑suppressed cell viability as demonstrated by Cell Counting Kit‑8 (CCK‑8) assay. The dose of 10 mg/l was selected for the following experiments because this dose had a better effect than the dose of 5 mg/l, and the doses >10 mg/l had a similar effect as this dose. ECH (10 mg/l) or pifithrin‑α (PFT‑α) (a p53 inhibitor, 20 µM) suppressed dexamethasone‑induced MC3T3‑E1 apoptosis as illustrated by Annexin V/propidium iodide (PI) double‑labeling flow cytometry analysis. ECH or PFT‑α treatment also alleviated dexamethasone's action of inhibiting Bcl‑2 expression as well as dexamethasone's action of stimulating on the expression of p53 and Bax. Moreover, lentivirus mediated‑p53 overexpression reversed the effects of ECH in dexamethasone‑treated MC3T3‑E1 cells, suggesting that ECH induced anti‑apoptotic effects in dexamethasone‑treated osteoblasts via p53‑dependent pathway. In summary, ECH has a protective effect against osteoblastic cell apoptosis induced by dexamethasone, suggesting that ECH may have potentials for clinical application in the treatment of GIOP.
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Copy and paste a formatted citation
Spandidos Publications style
Li S, Jiang H and Gu X: Echinacoside suppresses dexamethasone‑induced growth inhibition and apoptosis in osteoblastic MC3T3‑E1 cells. Exp Ther Med 16: 643-648, 2018.
APA
Li, S., Jiang, H., & Gu, X. (2018). Echinacoside suppresses dexamethasone‑induced growth inhibition and apoptosis in osteoblastic MC3T3‑E1 cells. Experimental and Therapeutic Medicine, 16, 643-648. https://doi.org/10.3892/etm.2018.6199
MLA
Li, S., Jiang, H., Gu, X."Echinacoside suppresses dexamethasone‑induced growth inhibition and apoptosis in osteoblastic MC3T3‑E1 cells". Experimental and Therapeutic Medicine 16.2 (2018): 643-648.
Chicago
Li, S., Jiang, H., Gu, X."Echinacoside suppresses dexamethasone‑induced growth inhibition and apoptosis in osteoblastic MC3T3‑E1 cells". Experimental and Therapeutic Medicine 16, no. 2 (2018): 643-648. https://doi.org/10.3892/etm.2018.6199
Copy and paste a formatted citation
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Spandidos Publications style
Li S, Jiang H and Gu X: Echinacoside suppresses dexamethasone‑induced growth inhibition and apoptosis in osteoblastic MC3T3‑E1 cells. Exp Ther Med 16: 643-648, 2018.
APA
Li, S., Jiang, H., & Gu, X. (2018). Echinacoside suppresses dexamethasone‑induced growth inhibition and apoptosis in osteoblastic MC3T3‑E1 cells. Experimental and Therapeutic Medicine, 16, 643-648. https://doi.org/10.3892/etm.2018.6199
MLA
Li, S., Jiang, H., Gu, X."Echinacoside suppresses dexamethasone‑induced growth inhibition and apoptosis in osteoblastic MC3T3‑E1 cells". Experimental and Therapeutic Medicine 16.2 (2018): 643-648.
Chicago
Li, S., Jiang, H., Gu, X."Echinacoside suppresses dexamethasone‑induced growth inhibition and apoptosis in osteoblastic MC3T3‑E1 cells". Experimental and Therapeutic Medicine 16, no. 2 (2018): 643-648. https://doi.org/10.3892/etm.2018.6199
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