Open Access

MEK inhibitor enhanced the antitumor effect of oxaliplatin and 5‑fluorouracil in MEK1 Q56P‑mutant colorectal cancer cells

  • Authors:
    • Changwen Jing
    • Huizi Li
    • Yuanyuan Du
    • Haixia Cao
    • Siwen Liu
    • Zhuo Wang
    • Rong Ma
    • Jifeng Feng
    • Jianzhong Wu
  • View Affiliations

  • Published online on: December 7, 2018     https://doi.org/10.3892/mmr.2018.9730
  • Pages: 1092-1100
  • Copyright: © Jing et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Mitogen‑activated protein kinase kinase (MEK) small molecule inhibitors have been investigated in preclinical or clinical trials for the treatment of cancer. In the present study the genetic test results of 120 patients with colorectal cancer (CRC) were screened and the mutation rate of MEK1 was identified to be 1.67%. MEK inhibition by U0126 significantly decreased the growth of SW48 cells that harbored the MEK1 Q56P mutation, although it did not evidently affect the growth of NCI‑H508 cells with MEK1 wild‑type. In addition, U0126 increased the sensitivity of SW48 cells to 5‑fluorouracil (5‑FU) and oxaliplatin by producing more γH2AX foci and decreasing the expression of excision repair cross‑complementation group 1 and thymidylate synthase. The results suggested that MEK inhibitors in combination with oxaliplatin/5‑FU may offer an improved therapeutic effect in patients with MEK‑mutant CRC.
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February-2019
Volume 19 Issue 2

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Jing C, Li H, Du Y, Cao H, Liu S, Wang Z, Ma R, Feng J and Wu J: MEK inhibitor enhanced the antitumor effect of oxaliplatin and 5‑fluorouracil in MEK1 Q56P‑mutant colorectal cancer cells. Mol Med Rep 19: 1092-1100, 2019
APA
Jing, C., Li, H., Du, Y., Cao, H., Liu, S., Wang, Z. ... Wu, J. (2019). MEK inhibitor enhanced the antitumor effect of oxaliplatin and 5‑fluorouracil in MEK1 Q56P‑mutant colorectal cancer cells. Molecular Medicine Reports, 19, 1092-1100. https://doi.org/10.3892/mmr.2018.9730
MLA
Jing, C., Li, H., Du, Y., Cao, H., Liu, S., Wang, Z., Ma, R., Feng, J., Wu, J."MEK inhibitor enhanced the antitumor effect of oxaliplatin and 5‑fluorouracil in MEK1 Q56P‑mutant colorectal cancer cells". Molecular Medicine Reports 19.2 (2019): 1092-1100.
Chicago
Jing, C., Li, H., Du, Y., Cao, H., Liu, S., Wang, Z., Ma, R., Feng, J., Wu, J."MEK inhibitor enhanced the antitumor effect of oxaliplatin and 5‑fluorouracil in MEK1 Q56P‑mutant colorectal cancer cells". Molecular Medicine Reports 19, no. 2 (2019): 1092-1100. https://doi.org/10.3892/mmr.2018.9730