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Piperlongumine induces autophagy in biliary cancer cells via reactive oxygen species-activated Erk signaling pathway

  • Authors:
    • San‑Yuan Chen
    • Hsin‑Yi Huang
    • Han‑Pei Lin
    • Chiung‑Yao Fang
  • View Affiliations / Copyright

    Affiliations: Department of Chinese Medicine, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi 600, Taiwan, R.O.C., Department of Medical Research, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi 600, Taiwan, R.O.C.
    Copyright: © Chen et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 1687-1696
    |
    Published online on: August 23, 2019
       https://doi.org/10.3892/ijmm.2019.4324
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Abstract

Biliary cancer (BC) is an aggressive neoplasm with high mortality. BC can be categorized into three groups: Intrahepatic cholangiocarcinoma (CCA; also known as bile duct cancer), extrahepatic cholangiocarcinoma and gallbladder cancer. Due to its heterogeneity and aggressiveness, the response to current chemotherapy and radiotherapy methods in patients with BC is poor. Therefore, there is an urgent requirement to develop drugs to treat BC. Piperlongumine (PL), a naturally occurring small molecule isolated from Piper longum L., exhibits anticancer activity by inducing reactive oxygen species (ROS) production. In the present study, the effects of PL on cell proliferation, cell cycle, apoptosis and autophagy in BC cells were investigated. PL induced BC cell death in a concentration‑ and time‑dependent manner by inducing ROS production. PL induced cell cycle arrest in CCA cells (HuCCT‑1) and gallbladder cancer cells (OCUG‑1) cells, but with distinct cell cycle distribution profiles. PL caused G2/M cell cycle arrest in HuCCT‑1 cells, and G0/G1 cell cycle arrest in OCUG‑1 cells. PL induced apoptosis and autophagy; PL treatment induced accumulation of LC3‑II in a concentration‑ and time‑dependent manner. The Erk signaling pathway appeared to be involved in autophagy induction. Application of the ROS scavenger, N‑acetyl‑l‑cysteine, to BC cells attenuated the cell death, cell cycle arrest, apoptosis and autophagy induced by PL treatment. These findings indicated that PL may be a potential agent for BC treatment in the future.
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Copy and paste a formatted citation
Spandidos Publications style
Chen SY, Huang HY, Lin HP and Fang CY: Piperlongumine induces autophagy in biliary cancer cells via reactive oxygen species-activated Erk signaling pathway. Int J Mol Med 44: 1687-1696, 2019.
APA
Chen, S., Huang, H., Lin, H., & Fang, C. (2019). Piperlongumine induces autophagy in biliary cancer cells via reactive oxygen species-activated Erk signaling pathway. International Journal of Molecular Medicine, 44, 1687-1696. https://doi.org/10.3892/ijmm.2019.4324
MLA
Chen, S., Huang, H., Lin, H., Fang, C."Piperlongumine induces autophagy in biliary cancer cells via reactive oxygen species-activated Erk signaling pathway". International Journal of Molecular Medicine 44.5 (2019): 1687-1696.
Chicago
Chen, S., Huang, H., Lin, H., Fang, C."Piperlongumine induces autophagy in biliary cancer cells via reactive oxygen species-activated Erk signaling pathway". International Journal of Molecular Medicine 44, no. 5 (2019): 1687-1696. https://doi.org/10.3892/ijmm.2019.4324
Copy and paste a formatted citation
x
Spandidos Publications style
Chen SY, Huang HY, Lin HP and Fang CY: Piperlongumine induces autophagy in biliary cancer cells via reactive oxygen species-activated Erk signaling pathway. Int J Mol Med 44: 1687-1696, 2019.
APA
Chen, S., Huang, H., Lin, H., & Fang, C. (2019). Piperlongumine induces autophagy in biliary cancer cells via reactive oxygen species-activated Erk signaling pathway. International Journal of Molecular Medicine, 44, 1687-1696. https://doi.org/10.3892/ijmm.2019.4324
MLA
Chen, S., Huang, H., Lin, H., Fang, C."Piperlongumine induces autophagy in biliary cancer cells via reactive oxygen species-activated Erk signaling pathway". International Journal of Molecular Medicine 44.5 (2019): 1687-1696.
Chicago
Chen, S., Huang, H., Lin, H., Fang, C."Piperlongumine induces autophagy in biliary cancer cells via reactive oxygen species-activated Erk signaling pathway". International Journal of Molecular Medicine 44, no. 5 (2019): 1687-1696. https://doi.org/10.3892/ijmm.2019.4324
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