Open Access

Ligation of CM1 enhances apoptosis of lung cancer cells through different mechanisms in conformity with EGFR mutation

  • Authors:
    • Hyun-Kyung Lee
    • Ga Bin Park
    • Yeong Seok Kim
    • Hyunkeun Song
    • V. Courtney Broaddus
    • Dae Young Hur
  • View Affiliations

  • Published online on: December 7, 2012     https://doi.org/10.3892/ijo.2012.1731
  • Pages: 469-477
  • Copyright: © Lee et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

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Abstract

Although remarkable developments in lung cancer treatments have been made, lung cancer remains the leading cause of cancer mortality worldwide. Epidermal growth factor receptor (EGFR) is occasionally mutated in non-small cell lung cancer and heterogeneity in treatment response results from different EGFR mutations. In the present study, we found that centrocyte/centroblast marker 1 (CM1), previously reported as a possible apoptosis inducer of B lymphoma cells, is expressed on both A549 with wild‑type EGFR and HCC827 with mutant EGFR lung cancer cells. Ligation of CM1 with anti-CM1 mAb enhanced apoptosis in both lung cancer cell lines through generation of reactive oxygen species (ROS) and disruption of mitochondrial membrane potential, however, the signaling mechanisms differed from each other. Further studies to investigate the signaling mechanisms identified that ligation of CM1‑induced apoptosis in A549 cell involved FasL expression, caspase-8, ERK1/2 and Akt kinase, whereas apoptosis of HCC827 cells was induced through caspase-9, JNK and c-jun‑dependent pathways. Taken together, we suggest that CM1 could be developed as a therapeutic target of lung cancer regardless of EGFR mutation status.
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February 2013
Volume 42 Issue 2

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

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APA
Lee, H., Park, G.B., Kim, Y.S., Song, H., Broaddus, V.C., & Hur, D.Y. (2013). Ligation of CM1 enhances apoptosis of lung cancer cells through different mechanisms in conformity with EGFR mutation. International Journal of Oncology, 42, 469-477. https://doi.org/10.3892/ijo.2012.1731
MLA
Lee, H., Park, G. B., Kim, Y. S., Song, H., Broaddus, V. C., Hur, D. Y."Ligation of CM1 enhances apoptosis of lung cancer cells through different mechanisms in conformity with EGFR mutation". International Journal of Oncology 42.2 (2013): 469-477.
Chicago
Lee, H., Park, G. B., Kim, Y. S., Song, H., Broaddus, V. C., Hur, D. Y."Ligation of CM1 enhances apoptosis of lung cancer cells through different mechanisms in conformity with EGFR mutation". International Journal of Oncology 42, no. 2 (2013): 469-477. https://doi.org/10.3892/ijo.2012.1731