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Combination of histone deacetylase inhibitor with Cu(II) 5,5- diethylbarbiturate complex induces apoptosis in breast cancer stem cells: a promising novel approach

Date

2021

Author

Erkısa Genel, Merve
Aztopal, Nazlıhan
Ertürk, Elif
Ulukaya, Engin
Yılmaz, Veysel Turan
Ari, Ferda

Metadata

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Citation

Erkisa, M., Aztopal, N., Erturk, E., Ulukaya, E., Yilmaz, V. T., & Ari, F. (2020). Combination of Histone Deacetylase Inhibitor with Cu(II) 5,5- diethylbarbiturate Complex Induces Apoptosis in Breast Cancer Stem Cells: A Promising Novel Approach. Anti-cancer agents in medicinal chemistry, 10.2174/1871520621666201207090702. Advance online publication. https://doi.org/10.2174/1871520621666201207090702

Abstract

Background: Cancer stem cells (CSC) are subpopulation within the tumor that acts a part in the initiation, progression, recurrence, resistance to drugs and metastasis of cancer. It is well known that epigenetic changes lead to tumor formation in cancer stem cells and show drug resistance. Epigenetic modulators and /or their combination with different agents have been used in cancer therapy. Objective: In our study we scope out the effects of combination of a histone deacetylases inhibitor, valproic acid (VPA), and Cu(II) complex [Cu(barb-κN)(barb-κ2N,O)(phen-κN,N')]·H2O] on cytotoxicity/apoptosis in a stem-cell enriched population (MCF-7s) obtained from parental breast cancer cell line (MCF-7). Methods: Viability of the cells was measured by the ATP assay. Apoptosis was elucidated via the assessment of caspase-cleaved cytokeratin 18 (M30 ELISA) and a group of flow cytometry analysis (caspase 3/7 activity, phosphatidylserine translocation by annexin V-FITC assay, DNA damage and oxidative stress) and 2',7'-dichlorofluorescein diacetate staining. Results: The VPA combined with Cu(II) complex showed anti proliferative activity on MCF-7s cells in a dose- and time-dependently. Treatment with combination of 2.5 mM VPA and 3.12 μM Cu(II) complex induces oxidative stress in a time-dependent manner, as well as apoptosis that is evidenced by the increase in caspase 3/7 activity, positive annexin-V-FITC, and increase in M30 levels. Conclusion: The results suggest that the combination therapy induces apoptosis following increased oxidative stress, thereby making it a possible promising therapeutic strategy that further analysis is required.

Source

Anti-cancer agents in medicinal chemistry

URI

https://doi.org/10.2174/1871520621666201207090702
https://hdl.handle.net/20.500.12713/1279

Collections

  • PubMed İndeksli Yayınlar Koleksiyonu [1163]
  • Scopus İndeksli Yayınlar Koleksiyonu [1937]
  • Temel Tıp Bilimleri Bölümü Makale Koleksiyonu [236]
  • WoS İndeksli Yayınlar Koleksiyonu [2061]



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