The effects of 56MESS on mitochondrial and cytoskeletal proteins and the cell cycle in MDCK cells

被引：33

作者：

Garbutcheon-Singh, K. Benjamin ^{[1
]}

Myers, Simon ^{[2
,3
]}

Harper, Benjamin W. J. ^{[1
]}

Ng, Neville S. ^{[1
]}

Dong, Qihan ^{[1
]}

Xie, Chanlu ^{[1
]}

Aldrich-Wright, Janice R. ^{[1
]}

机构：

[1] Univ Western Sydney, Nanoscale Org & Dynam Grp, Sch Sci & Hlth, Penrith, NSW 2751, Australia

[2] Univ Western Sydney, Sch Med, Mol Med Res Grp, Penrith, NSW 2751, Australia

[3] Univ Western Sydney, Sch Med, Neurocell Biol Lab, Penrith, NSW 2751, Australia

来源：

METALLOMICS | 2013年 / 5卷 / 08期

关键词：

DNA INTERCALATORS; CISPLATIN; METALLOINTERCALATORS; MECHANISMS;

D O I：

10.1039/c3mt00023k

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Background: 56MESS has been shown to be cytotoxic but the mode of this action is unclear. In order to probe the mechanism of action for 56MESS, MDCK cells were utilised to investigate the effect on treated cells. Results: IC50 values for 56MESS and cisplatin in the MDCK cell line, determined by a SRB assay, were 0.25 +/- 0.03 and 18 +/- 1.2 mu M respectively. In a preliminary study, cells treated with 56MESS displayed no caspase-3/7 activity, suggesting that the mechanism of action is caspase independent. Protein expression studies revealed an increase the expression in the MTC02 protein associated with mitochondria in cells treated with 56MESS and cisplatin. Non-synchronised 56MESS-treated cells caused an arrest in the G(2)/M phase of the cell cycle, in comparison to the S phase arrest of cisplatin. In G(0)/G(1) synchronised cells, both 56MESS and cisplatin both appeared to arrest within the S phase. Conclusions: these results suggest that 56MESS is capable of causing cell-cycle arrest, and that mitochondrial and cell cycle proteins may be involved in the mode of action of cytotoxicity of 56MESS.

引用

页码：1061 / 1067

页数：7

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