Critical contribution of MCL-1 in EMT-associated chemo-resistance in A549 non-small cell lung cancer

  • Authors:
    • Masayoshi Toge
    • Satoru Yokoyama
    • Shinichiro Kato
    • Hiroaki Sakurai
    • Kazutaka Senda
    • Yoshinori Doki
    • Yoshihiro Hayakawa
    • Naoki Yoshimura
    • Ikuo Saiki
  • View Affiliations

  • Published online on: January 30, 2015     https://doi.org/10.3892/ijo.2015.2861
  • Pages: 1844-1848
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Abstract

Non-small cell lung cancer (NSCLC) is one of the leading causes of death in all lung cancer patients due to its metastatic spread. Even though cisplatin treatment after surgical resection of the primary tumor has been established as a standard chemotherapy for residual disease including metastatic spread, NSCLC often acquires a resistance against chemotherapy, and metastatic disease is often observed. Amongst many potential mechanisms, epithelial-to-mesenchymal transition (EMT) has been considered as an important process in acquiring both metastatic spread and chemo-resistance of NSCLC. In this study, we identified MCL-1 as a critical molecule for chemo-resistance in A549 cells associated with TGF-β-induced EMT. Importantly, downregulation of MCL-1 by siRNA or inhibition of MCL-1 with pan-BCL2 inhibitor to inhibit MCL-1 was able to overcome the EMT-associated chemo-resistance in A549 cells. Collectively, MCL-1 can be a new therapeutic target for overcoming EMT-associated chemo-resistance in NSCLC patients in the context of post-operative chemotherapies.
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April-2015
Volume 46 Issue 4

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

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Spandidos Publications style
Toge M, Yokoyama S, Kato S, Sakurai H, Senda K, Doki Y, Hayakawa Y, Yoshimura N and Saiki I: Critical contribution of MCL-1 in EMT-associated chemo-resistance in A549 non-small cell lung cancer. Int J Oncol 46: 1844-1848, 2015
APA
Toge, M., Yokoyama, S., Kato, S., Sakurai, H., Senda, K., Doki, Y. ... Saiki, I. (2015). Critical contribution of MCL-1 in EMT-associated chemo-resistance in A549 non-small cell lung cancer. International Journal of Oncology, 46, 1844-1848. https://doi.org/10.3892/ijo.2015.2861
MLA
Toge, M., Yokoyama, S., Kato, S., Sakurai, H., Senda, K., Doki, Y., Hayakawa, Y., Yoshimura, N., Saiki, I."Critical contribution of MCL-1 in EMT-associated chemo-resistance in A549 non-small cell lung cancer". International Journal of Oncology 46.4 (2015): 1844-1848.
Chicago
Toge, M., Yokoyama, S., Kato, S., Sakurai, H., Senda, K., Doki, Y., Hayakawa, Y., Yoshimura, N., Saiki, I."Critical contribution of MCL-1 in EMT-associated chemo-resistance in A549 non-small cell lung cancer". International Journal of Oncology 46, no. 4 (2015): 1844-1848. https://doi.org/10.3892/ijo.2015.2861