Oridonin enhances in vitro anticancer effects of lentinan in SMMC‑7721 human hepatoma cells through apoptotic genes

  • Authors:
    • Tao Xu
    • Fa Jin
    • Keren Wu
    • Zhipeng Ye
    • Ning Li
  • View Affiliations

  • Published online on: September 21, 2017     https://doi.org/10.3892/etm.2017.5168
  • Pages: 5129-5134
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Abstract

The aim of the present study was to determine the ability of oridonin to enhance the anticancer activity of lentinan (LNT) in SMMC‑7721 human hepatoma cells in vitro by using various techniques, including MTT, flow cytometry, quantitative PCR and western blot assays. The results demonstrated that 20 µg/ml was a non‑toxic concentration of oridonin for L02 normal liver cells and SMMC‑7721 cells, while 0‑200 µg/ml of LNT only had anti‑proliferative effects on SMMC‑7721 cells. LNT at 100 and 200 µg/ml inhibited the growth of SMMC‑7721 cells by 22.8 and 60.0%, respectively, and after addition of 20 µg/ml oridonin, the inhibitory rate of 100 and 200 µg/ml LNT was increased to 47.2 and 80.7%, respectively. Oridonin (20 µg/ml) + LNT (200 µg/ml)‑treated SMMC‑7721 cells showed the highest apoptotic rate, which was 40.5±2.5%, which was higher than that of cells treated with LNT only. LNT raised the mRNA and protein expression of caspase‑3, ‑8 and ‑9 as well as B‑cell lymphoma 2 (Bcl‑2)‑associated X protein, p53 and p21, while reducing the expression of Bcl‑2, Bcl extra large protein, epidermal growth factor (EGF) and EGF receptor expression in SMMC‑7721 cells as compared to that in control cells. Treatment with 20 µg/ml oridonin and 200 µg/ml LNT increased these changes of gene expression. From the obtained results, it may be concluded that oridonin raised the in vitro anti‑cancer effects of LNT in SMMC‑7721 cells. Oridonin may also be used as a sensitizing agent to increase the anticancer activity of LNT in vivo.
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November-2017
Volume 14 Issue 5

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Xu T, Jin F, Wu K, Ye Z and Li N: Oridonin enhances in vitro anticancer effects of lentinan in SMMC‑7721 human hepatoma cells through apoptotic genes. Exp Ther Med 14: 5129-5134, 2017.
APA
Xu, T., Jin, F., Wu, K., Ye, Z., & Li, N. (2017). Oridonin enhances in vitro anticancer effects of lentinan in SMMC‑7721 human hepatoma cells through apoptotic genes. Experimental and Therapeutic Medicine, 14, 5129-5134. https://doi.org/10.3892/etm.2017.5168
MLA
Xu, T., Jin, F., Wu, K., Ye, Z., Li, N."Oridonin enhances in vitro anticancer effects of lentinan in SMMC‑7721 human hepatoma cells through apoptotic genes". Experimental and Therapeutic Medicine 14.5 (2017): 5129-5134.
Chicago
Xu, T., Jin, F., Wu, K., Ye, Z., Li, N."Oridonin enhances in vitro anticancer effects of lentinan in SMMC‑7721 human hepatoma cells through apoptotic genes". Experimental and Therapeutic Medicine 14, no. 5 (2017): 5129-5134. https://doi.org/10.3892/etm.2017.5168