Tanshinone IIA induces TRAIL sensitization of human lung cancer cells through selective ER stress induction

  • Authors:
    • Eun-Ok Kim
    • Shi Eun Kang
    • Chang Rak Im
    • Jun-Hee Lee
    • Kwang Seok Ahn
    • Woong Mo Yang
    • Jae-Young Um
    • Seok-Geun Lee
    • Miyong Yun
  • View Affiliations

  • Published online on: March 15, 2016     https://doi.org/10.3892/ijo.2016.3441
  • Pages: 2205-2212
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Abstract

Although tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a promised anticancer medicine targeting only the tumor, most cancers show resistance to TRAIL-induced apoptosis. For this reason, new therapeutic strategies to overcome the TRAIL resistance are required for more effective tumor treatment. In the present study, potential of tanshinone IIA as a TRAIL sensitizer was evaluated in human non-small cell lung cancer (NSCLC) cells. NSCLC cells showed resistance to TRAIL-mediated cell death, but combination treatment of Tanshinone IIA and TRAIL synergistically decreased cell viability and increased apoptosis in TRAIL-resistant NSCLC cells. Tanshinone IIA greatly induced death receptor 5 (DR5), but not death receptor 4 (DR4). Furthermore, DR5 knockdown attenuated the combination treatment of tanshinone IIA with TRAIL-mediated cell death in human NSCLC cells. Tanshinone IIA also increased CHOP and activated the PERK-ATF4 pathway suggesting that tanshinone IIA increased DR5 and CHOP by activating the PERK-ATF4 pathway. Tanshinone IIA also downregulated phosphorylation of STAT3 and expression of survivin. Taken together, these results indicate that tanshinone IIA increases TRAIL-induced cell death via upregulating DR5 and downregulating survivin mediated by, respectively, selective activation of PERK/ATF4 and inhibition of STAT3, suggesting combinatorial intervention of tanshinone IIA and TRAIL as a new therapeutic strategy for human NSCLC.
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May-2016
Volume 48 Issue 5

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Spandidos Publications style
Kim E, Kang SE, Im CR, Lee J, Ahn KS, Yang WM, Um J, Lee S and Yun M: Tanshinone IIA induces TRAIL sensitization of human lung cancer cells through selective ER stress induction. Int J Oncol 48: 2205-2212, 2016
APA
Kim, E., Kang, S.E., Im, C.R., Lee, J., Ahn, K.S., Yang, W.M. ... Yun, M. (2016). Tanshinone IIA induces TRAIL sensitization of human lung cancer cells through selective ER stress induction. International Journal of Oncology, 48, 2205-2212. https://doi.org/10.3892/ijo.2016.3441
MLA
Kim, E., Kang, S. E., Im, C. R., Lee, J., Ahn, K. S., Yang, W. M., Um, J., Lee, S., Yun, M."Tanshinone IIA induces TRAIL sensitization of human lung cancer cells through selective ER stress induction". International Journal of Oncology 48.5 (2016): 2205-2212.
Chicago
Kim, E., Kang, S. E., Im, C. R., Lee, J., Ahn, K. S., Yang, W. M., Um, J., Lee, S., Yun, M."Tanshinone IIA induces TRAIL sensitization of human lung cancer cells through selective ER stress induction". International Journal of Oncology 48, no. 5 (2016): 2205-2212. https://doi.org/10.3892/ijo.2016.3441