Induction of apoptosis by hexaosmium carbonyl clusters

Kien Voon Kong, Weng Kee Leong*, Lina H.K. Lim

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

A number of tri- and hexaosmium carbonyl cluster derivatives were screened for cytotoxicity against five cancer cell lines, and the hexaosmium carbonyl clusters Os6(CO)18 and Os6(CO)16(NCCH3)2 were found to be active against four of these, viz., ER+ breast carcinoma (MCF-7), ER-breast carcinoma (MDA-MB-231), metastatic colorectal adenocarcinoma (SW620) and hepatocarcinoma (Hepg2), with IC50 values as low as 6 μM. Studies on their mode of action with the MDA-MB-231 cell line pointed to the induction of apoptosis, as has been found earlier for the trinuclear cluster Os3(CO)10(NCCH3)2.

Original languageEnglish
Pages (from-to)834-839
Number of pages6
JournalJournal of Organometallic Chemistry
Volume694
Issue number6
DOIs
Publication statusPublished - Mar 15 2009
Externally publishedYes

ASJC Scopus Subject Areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Keywords

  • Apoptosis
  • Cancer
  • Cluster compounds
  • Osmium

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