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Biochemical and proteomic analysis of a potential anticancer agent: Palladium(II) saccharinate complex of terpyridine acting through double strand break formation

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info:eu-repo/semantics/closedAccess

Date

2014

Author

Adıgüzel, Zelal
Baykal, Ahmet Tarık
Kaçar, Ömer
Yılmaz, Veysel Turan
Ulukaya, Engin
Açılan, Ceyda

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Citation

Adıgüzel, Z., Baykal, A. T., Kaçar, Ö., Yılmaz, V. T., Ulukaya, E. ve Açılan, C. (2014). Biochemical and proteomic analysis of a potential anticancer agent: Palladium(II) saccharinate complex of terpyridine acting through double strand break formation. Journal of Proteome Research, 13(11), 5240-5249. https://dx.doi.org/10.1021/pr5006718

Abstract

Metal based chemotherapeutic drugs are widely used as an effective method to defeat various cancers. In this study, the mechanism of action of a novel therapeutic agent, [Pd(sac)(terpy)](sac)center dot 4H(2)O (sac = saccharinate, and terpy = 2,2':6',2 ''-terpyridine) was studied. To better understand the proteomic changes in response to this agent, we performed nano LC-MS/MS analyses in human breast cancer cells (MDA-MB-231). Thirty proteins were identified to be differentially expressed more than 40% after drug treatment. Many cellular pathways were affected, including proteins involved in DNA repair, apoptosis, energy metabolism, protein folding, cytoskeleton, pre-mRNA maturation, or protein translation. The changes in protein expression were further verified for XRCC5, which plays a role in double strand break (DSB) repair, and ubiquitin, which is involved in protein degradation and apoptosis. The elevated XRCC5 levels were suggestive of increased DSBs. The presence of DSBs was confirmed by smearing of plasmid DNA in vitro and induction of gamma H2AX foci in vivo. There was also increased intracellular reactive oxygen species (ROS) formation, as detected by 2',7'-dichlorofluorescein diacetate (DCFDA) staining. Scavenging ROS by N-acetylcysteine rescued cell death in response to Pd(II) treatment, potentially explaining how the Pd(II) complex damaged the DNA. The details of this analysis and the significance will be discussed during the scope of this work.

WoS Q Kategorisi

Q1

Source

Journal of Proteome Research

Volume

13

Issue

11

URI

https://dx.doi.org/10.1021/pr5006718
https://hdl.handle.net/20.500.12511/3299

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  • Makale Koleksiyonu [2736]
  • PubMed İndeksli Yayınlar Koleksiyonu [2911]
  • Scopus İndeksli Yayınlar Koleksiyonu [4391]
  • WoS İndeksli Yayınlar Koleksiyonu [4733]



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