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Induction of autophagy enhances apoptotic cell death via epidermal growth factor receptor inhibition by canertinib in cervical cancer cells

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Date

2019

Author

Aydinlik, Seyma
Dere, Egemen
Ulukaya, Engin

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Citation

Aydinlik, S., Dere, E., & Ulukaya, E. (2019). Induction of autophagy enhances apoptotic cell death via epidermal growth factor receptor inhibition by canertinib in cervical cancer cells. Biochimica et Biophysica Acta (BBA)-General Subjects, 1863(5), 903-916.

Abstract

Background: It has been known epidermal growth factor receptor (EGFR) frequently overexpressed in cervical cancer. High levels of EGFR expression in their tumors leads to a poor prognosis and inhibition frequently induces autophagy in cancer cells. This study aimed to investigate whether EGFR inhibition by canertinib induces autophagy and this induction influence the effect of Palladium (Pd) (II) complex and 5-fluorouracil (5-FU) especially in nontoxic doses. Methods: Cytotoxicity was evaluated by using SRB assay. Apoptosis, autophagy, and EGFR key markers were determined by flow cytometry, fluorescence staining, and immunoblotting. Colony formation, invasion, and wound healing assays were performed to investigate cell proliferation, invasion, and migration, respectively. Results: Blocking EGFR by the pan-ErbB tyrosine kinase inhibitor canertinib inhibited cell growth of HeLa cervical cancer cells in combination with Pd(II) complex and 5-FU. Combination of canertinib and Pd(II) complex promotes autophagy and apoptosis of HeLa cancer cells via blockade of the PI3K/AKT and MAPK/ERK pathway, which leads to cervical cancer cell death. ROS accumulation and DNA damage were increased after combinatorial treatment which causes depolarization of the mitochondrial inner membrane and leads to apoptotic cell death. Canertinib combined with Pd(II) complex leads to inhibition of migration and invasion. Conclusion: Inhibition of EGFR signaling by canertinib in combination with Pd(II) complex promotes apoptosis and autophagy via blockade of the PI3K/AKT and MAPK/ERK. General significance: The cytotoxic activity of Pd(II) complex and 5-FU on HeLa cells is mediated by EGFR inhibition and autophagy induction, leading to activation of mitochondrial apoptotic cell death.

Source

Biochimica Et Biophysica Acta-General Subjects

Volume

1863

Issue

5

URI

https://doi.org/10.1016/j.bbagen.2019.02.014
https://hdl.handle.net/20.500.12713/632

Collections

  • PubMed İndeksli Yayınlar Koleksiyonu [1168]
  • Scopus İndeksli Yayınlar Koleksiyonu [1946]
  • Temel Tıp Bilimleri Bölümü Makale Koleksiyonu [236]
  • WoS İndeksli Yayınlar Koleksiyonu [2067]



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