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Neutrophil elastase enhances the proliferation and decreases apoptosis of leukemia cells via activation of PI3K/Akt signaling

  • Authors:
    • Rong Yang
    • Liang Zhong
    • Xiao‑Qun Yang
    • Kai‑Ling Jiang
    • Liu Li
    • Hao Song
    • Bei‑Zhong Liu
  • View Affiliations / Copyright

    Affiliations: Central Laboratory of Yong‑Chuan Hospital, Chongqing Medical University, Chongqing 402160, P.R. China, Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
    Copyright: © Yang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 4175-4182
    |
    Published online on: March 28, 2016
       https://doi.org/10.3892/mmr.2016.5051
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Abstract

Neutrophil elastase (NE) is a neutrophil‑derived serine proteinase with specificity for a broad range of substrates. NE has been reported to be associated with the pathogenesis of several conditions, particularly that of pulmonary diseases. Previous studies have shown that NE can cleave the pro‑myelocyte ‑ retinoic acid receptor‑alpha chimeric protein and is important for the development of acute pro‑myelocytic leukemia. To further elucidate the role of NE in acute pro‑myelocytic leukemia, the present study successfully constructed a lentiviral vector containing the NE gene (LV5‑NE), which was transfected into NB4 acute pro‑myelocytic leukemia cells. The effects of NE overexpression in NB4 cells were detected using a Cell-Counting Kit‑8 assay, flow cytometry and western blot analysis. The results showed that NE significantly promoted the proliferation of NB4 cells, inhibited cell apoptosis and apoptotic signaling, and led the activation of Akt. In an additional experiment, a vector expressing small hairpin RNA targeting NE was constructed to assess the effects of NE knockdown in U937 cells. Western blot analysis revealed that apoptotic signaling was increased, while Akt activation was decreased following silencing of NE. The results of the present study may indicate that NE activates the phosphoinositide-3 kinase/Akt signaling pathway in leukemia cells to inhibit apoptosis and enhance cell proliferation, and may therefore represent a molecular target for the treatment of pro‑myelocytic leukemia.
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Copy and paste a formatted citation
Spandidos Publications style
Yang R, Zhong L, Yang XQ, Jiang KL, Li L, Song H and Liu BZ: Neutrophil elastase enhances the proliferation and decreases apoptosis of leukemia cells via activation of PI3K/Akt signaling. Mol Med Rep 13: 4175-4182, 2016.
APA
Yang, R., Zhong, L., Yang, X., Jiang, K., Li, L., Song, H., & Liu, B. (2016). Neutrophil elastase enhances the proliferation and decreases apoptosis of leukemia cells via activation of PI3K/Akt signaling. Molecular Medicine Reports, 13, 4175-4182. https://doi.org/10.3892/mmr.2016.5051
MLA
Yang, R., Zhong, L., Yang, X., Jiang, K., Li, L., Song, H., Liu, B."Neutrophil elastase enhances the proliferation and decreases apoptosis of leukemia cells via activation of PI3K/Akt signaling". Molecular Medicine Reports 13.5 (2016): 4175-4182.
Chicago
Yang, R., Zhong, L., Yang, X., Jiang, K., Li, L., Song, H., Liu, B."Neutrophil elastase enhances the proliferation and decreases apoptosis of leukemia cells via activation of PI3K/Akt signaling". Molecular Medicine Reports 13, no. 5 (2016): 4175-4182. https://doi.org/10.3892/mmr.2016.5051
Copy and paste a formatted citation
x
Spandidos Publications style
Yang R, Zhong L, Yang XQ, Jiang KL, Li L, Song H and Liu BZ: Neutrophil elastase enhances the proliferation and decreases apoptosis of leukemia cells via activation of PI3K/Akt signaling. Mol Med Rep 13: 4175-4182, 2016.
APA
Yang, R., Zhong, L., Yang, X., Jiang, K., Li, L., Song, H., & Liu, B. (2016). Neutrophil elastase enhances the proliferation and decreases apoptosis of leukemia cells via activation of PI3K/Akt signaling. Molecular Medicine Reports, 13, 4175-4182. https://doi.org/10.3892/mmr.2016.5051
MLA
Yang, R., Zhong, L., Yang, X., Jiang, K., Li, L., Song, H., Liu, B."Neutrophil elastase enhances the proliferation and decreases apoptosis of leukemia cells via activation of PI3K/Akt signaling". Molecular Medicine Reports 13.5 (2016): 4175-4182.
Chicago
Yang, R., Zhong, L., Yang, X., Jiang, K., Li, L., Song, H., Liu, B."Neutrophil elastase enhances the proliferation and decreases apoptosis of leukemia cells via activation of PI3K/Akt signaling". Molecular Medicine Reports 13, no. 5 (2016): 4175-4182. https://doi.org/10.3892/mmr.2016.5051
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