The natural sweetener metabolite steviol inhibits the proliferation of human osteosarcoma U2OS cell line

  • Authors:
    • Jun‑Ming Chen
    • Jue Zhang
    • Yong‑Mei Xia
    • Xiao‑Xia Wang
    • Jian Li
  • View Affiliations

  • Published online on: February 6, 2018     https://doi.org/10.3892/ol.2018.7962
  • Pages: 5250-5256
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Abstract

Steviol is the colonic metabolite of the natural sweetener steviol glycosides. It does not diffuse to the blood and the half maximal inhibitory concentration of steviol is longer compared with that of current chemotherapy agents, including 5‑fluorouracil and doxorubicin. The present study demonstrated that steviol inhibits the proliferation of the human osteosarcoma U2OS cell line in a dose‑ and time‑dependent manner, and that the inhibition rate is comparative with that of doxorubicin and 5‑fluorouracil. The mechanism of this anticancer activity is also investigated. The results indicated that steviol inhibits U2OS cells through inducing G1 phase cell cycle arrest, downregulating the ability of colony formation via a mitochondrial apoptotic pathway, which was indicated by an increase of the Bax/Bcl‑2 ratio and activation of cyclin‑dependent kinase inhibitor 1, tumor protein 53 and cyclin‑dependent kinase; whereas a Survivin and Caspase 3‑independent mechanism was involved. Considering that steviol appears minimally in the plasma during metabolism, and possesses a median lethal dose of 100-fold greater compared with that of 5‑fluorouracil, it may become a potential chemotherapy agent.
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April-2018
Volume 15 Issue 4

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Chen JM, Zhang J, Xia YM, Wang XX and Li J: The natural sweetener metabolite steviol inhibits the proliferation of human osteosarcoma U2OS cell line. Oncol Lett 15: 5250-5256, 2018.
APA
Chen, J., Zhang, J., Xia, Y., Wang, X., & Li, J. (2018). The natural sweetener metabolite steviol inhibits the proliferation of human osteosarcoma U2OS cell line. Oncology Letters, 15, 5250-5256. https://doi.org/10.3892/ol.2018.7962
MLA
Chen, J., Zhang, J., Xia, Y., Wang, X., Li, J."The natural sweetener metabolite steviol inhibits the proliferation of human osteosarcoma U2OS cell line". Oncology Letters 15.4 (2018): 5250-5256.
Chicago
Chen, J., Zhang, J., Xia, Y., Wang, X., Li, J."The natural sweetener metabolite steviol inhibits the proliferation of human osteosarcoma U2OS cell line". Oncology Letters 15, no. 4 (2018): 5250-5256. https://doi.org/10.3892/ol.2018.7962