Pt(IV) derivatives of cisplatin and oxaliplatin with phenylbutyrate axial ligands are potent cytotoxic agents that act by several mechanisms of action

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081707%3A_____%2F16%3A00471983" target="_blank" >RIV/68081707:_____/16:00471983 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/16:33161172

Result on the web

<a href="http://dx.doi.org/10.1039/c5sc04205d" target="_blank" >http://dx.doi.org/10.1039/c5sc04205d</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c5sc04205d" target="_blank" >10.1039/c5sc04205d</a>

Result language

angličtina

Original language name

Pt(IV) derivatives of cisplatin and oxaliplatin with phenylbutyrate axial ligands are potent cytotoxic agents that act by several mechanisms of action

Original language description

Our study demonstrates that Pt(IV) derivative of cisplatin, with two axial PhB ligands, ctc-[Pt(NH3)(2)(PhB)(2)Cl-2], is a very potent cytotoxic agent against many different human cancer cell lines and is up to 100 fold more potent than cisplatin, and significantly more potent than the Pt(IV) derivatives of cisplatin with either two hydroxido, two acetato or two valproato ligands. The high potency of this compound (and some others) is due to several factors including enhanced internalization, probably driven by "synergistic accumulation" of both the Pt moiety and the phenylbutyrate, that correlates with enhanced DNA binding and cytotoxicity. ctc-[Pt(NH3)(2)(PhB)(2)Cl-2] inhibits 60-70% HDAC activity in cancer cells, at levels below the IC50 values of PhB, suggesting synergism between Pt and PhB. Mechanistically, ctc[Pt(NH3)(2)(PhB)(2)Cl-2] induces activation of caspases (3 and 9) triggering apoptotic signaling via the mitochondrial pathway. Data also suggest that the antiproliferative effect of ctc-[Pt(NH3)(2)(PhB)(2)Cl-2] may not depend of p53. Pt(IV) derivatives of cisplatin with either two axial PhB or valproate ligands are more potent than their oxaliplatin analogs. ctc-[Pt(NH3)(2)(PhB)(2)Cl-2] is significantly more potent than its valproate analog ctc-[Pt(NH3)(2)(VPA)(2)Cl-2]. These compounds combine multiple effects such as efficient uptake of both Pt and PhB with DNA binding, HDAC inhibition and activation of caspases to effectively kill cancer cells.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BO - Biophysics

OECD FORD branch

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Project

<a href="/en/project/GA14-21053S" target="_blank" >GA14-21053S: Mechanistic studies on dual targeting of DNA and histone deacetylase with bifunctional inhibitors</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chemical Science

ISSN

2041-6520

e-ISSN

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Volume of the periodical

7

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

2381-2391

UT code for WoS article

000371021900096

EID of the result in the Scopus database

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