Induction of autophagy enhances apoptotic cell death via epidermal growth factor receptor inhibition by canertinib in cervical cancer cells
Yükleniyor...
Dosyalar
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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.
Açıklama
Anahtar Kelimeler
Autophagy, Apoptosis, Tyrosine Kinase Inhibitors, Mitochondrial Depolarization, Epidermal Growth Factor Receptor
Kaynak
Biochimica Et Biophysica Acta-General Subjects
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
1863
Sayı
5
Künye
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.
