Sodium selenite inhibits leukemia HL-60 cell proliferation and induces cell apoptosis by enhancing the phosphorylation of JNK1 and increasing the expression of p21 and p27

  • Authors:
    • Sun Wu
    • Yonghua Bao
    • Dong Ma
    • Youmei Zi
    • Cui Yang
    • Man Yang
    • Mengtao Xing
    • Wancai Yang
  • View Affiliations

  • Published online on: July 15, 2014     https://doi.org/10.3892/ijmm.2014.1854
  • Pages: 1175-1179
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Abstract

Selenium is an essential trace element and has shown chemopreventive or therapeutic activities on human solid cancers; however, whether it has anticancer effects on leukemia has not yet been elucidated. The present study was designed to determine the role of selenium on HL-60 human promyelocytic leukemia cells. We found that 100 nM of sodium selenite (Se) had no significant effects on cell proliferation, apoptosis and the cell cycle; however, a higher concentration of 250 nM of Se significantly inhibited cell proliferation, promoted apoptosis and induced cell cycle arrest at the S phase after 48 h of treatment (P<0.05), thus demonstrating the anticancer activities of selenium in leukemia. However, the decrease in c-Jun NH2-terminal kinase 1 (JNK1) expression by targeting JNK1 using small interfering RNA attenuated the inhibitory effects of Se on cell proliferation and the induction of apoptosis. Mechanistic studies showed that the anticancer activities of Se were associated with the enhanced phosphorylation of JNK1 and the increased expression of the cell cycle regulators, p21 and p27, as well as the downregulation of cyclin D1. Our data provide further evidence that the appropriate concentration of selenium has therapeutic potential in leukemia.
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October 2014
Volume 34 Issue 4

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Wu S, Bao Y, Ma D, Zi Y, Yang C, Yang M, Xing M and Yang W: Sodium selenite inhibits leukemia HL-60 cell proliferation and induces cell apoptosis by enhancing the phosphorylation of JNK1 and increasing the expression of p21 and p27. Int J Mol Med 34: 1175-1179, 2014.
APA
Wu, S., Bao, Y., Ma, D., Zi, Y., Yang, C., Yang, M. ... Yang, W. (2014). Sodium selenite inhibits leukemia HL-60 cell proliferation and induces cell apoptosis by enhancing the phosphorylation of JNK1 and increasing the expression of p21 and p27. International Journal of Molecular Medicine, 34, 1175-1179. https://doi.org/10.3892/ijmm.2014.1854
MLA
Wu, S., Bao, Y., Ma, D., Zi, Y., Yang, C., Yang, M., Xing, M., Yang, W."Sodium selenite inhibits leukemia HL-60 cell proliferation and induces cell apoptosis by enhancing the phosphorylation of JNK1 and increasing the expression of p21 and p27". International Journal of Molecular Medicine 34.4 (2014): 1175-1179.
Chicago
Wu, S., Bao, Y., Ma, D., Zi, Y., Yang, C., Yang, M., Xing, M., Yang, W."Sodium selenite inhibits leukemia HL-60 cell proliferation and induces cell apoptosis by enhancing the phosphorylation of JNK1 and increasing the expression of p21 and p27". International Journal of Molecular Medicine 34, no. 4 (2014): 1175-1179. https://doi.org/10.3892/ijmm.2014.1854