Open Access

Crizotinib induces apoptosis of lung cancer cells through JAK-STAT pathway

  • Authors:
    • Hongmin Lu
    • Shibo Wu
    • Huafei Chen
    • Ying Huang
    • Guoqin Qiu
    • Lingxiang Liu
    • Yong Li
  • View Affiliations

  • Published online on: September 4, 2018     https://doi.org/10.3892/ol.2018.9387
  • Pages: 5992-5996
  • Copyright: © Lu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Effect of crizotinib on apoptosis of lung cancer cells was investigated. Human non-small cell lung adenocarcinoma H2228 cells were cultured in the presence of 0, 20, 40, 80, 160 and 320 nmol/l of crizotinib for 3 days, respectively. The inhibition rate of cell proliferation was measured by MTT assay, and half maximal inhibitory concentration (IC50) was calculated. Cell apoptosis was detected by flow cytometry. Transwell assay was performed to detect cell migration. Expression of Janus protein tyrosine kinase (JAK) and signal transducer and activator of transcription (STAT) proteins was detected by western blot analysis. Crizotinib significantly inhibited the proliferation of human lung cancer H2228 cells, and the inhibitory effect was enhanced with the increase of the concentration of crizotinib (p<0.01). The IC50 value was 311.26 nnol/l. According to IC50 value, concentration of crizotinib at 300 nmol/l was selected for the study. It was found that crizotinib at 300 nmol/l significantly promoted cell apoptosis (p<0.01) and inhibited cell migration (p<0.01). Compared with pretreatment levels, crizotinib downregulated the expression of JAK and STAT (p<0.01) on the 1st day of treatment, but with the prolongation of time, no further significant difference was observed on the 1st, 2nd or 3rd day in the level of JAK protein (p=0.47); there were no statistically significant differences in the level of STAT protein (p=0.91). Crizotinib can inhibit the migration and promote cell apoptosis of human lung cancer cell line H2228 by regulating the expression of JAK and STAT proteins in JAK-STAT signaling pathway.
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November-2018
Volume 16 Issue 5

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Copy and paste a formatted citation
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Spandidos Publications style
Lu H, Wu S, Chen H, Huang Y, Qiu G, Liu L and Li Y: Crizotinib induces apoptosis of lung cancer cells through JAK-STAT pathway. Oncol Lett 16: 5992-5996, 2018.
APA
Lu, H., Wu, S., Chen, H., Huang, Y., Qiu, G., Liu, L., & Li, Y. (2018). Crizotinib induces apoptosis of lung cancer cells through JAK-STAT pathway. Oncology Letters, 16, 5992-5996. https://doi.org/10.3892/ol.2018.9387
MLA
Lu, H., Wu, S., Chen, H., Huang, Y., Qiu, G., Liu, L., Li, Y."Crizotinib induces apoptosis of lung cancer cells through JAK-STAT pathway". Oncology Letters 16.5 (2018): 5992-5996.
Chicago
Lu, H., Wu, S., Chen, H., Huang, Y., Qiu, G., Liu, L., Li, Y."Crizotinib induces apoptosis of lung cancer cells through JAK-STAT pathway". Oncology Letters 16, no. 5 (2018): 5992-5996. https://doi.org/10.3892/ol.2018.9387