In vitro antiproliferative study of novel adamantyl pyridin-4-ones


The preparation of several N-aryl-substituted (phenyl, p-methylphenyl, p-methoxyphenyl, p-nitrophenyl, p-aminophenyl, p-hydroxyphenyl) 3-hydroxy-2-methylpyridin-4-ones as well as their adamantyl derivatives is described, and their in vitro antitumor properties were investigated. The compounds were synthesized in good yields using efficient synthetic routes and methods. Prepared derivatives were evaluated in an antiproliferative in vitro study on 4 cancer cell lines, namely HCT 116 (colon carcinoma), H 460 (lung carcinoma), MCF-7 (breast carcinoma) and K562 (chronic myelogenous leukemia). All tested compounds showed antiproliferative activity ranging from moderate to strong on all inspected cell lines with 4 adamantane containing derivatives being active and selective at low micromolar IC\(_{50}\) concentrations on HCT 116, H 460 and MCF-7. LDH cytotoxicity assay revealed that cytotoxic effects occur after 48 h of exposure. It was shown that there was no change in caspase activity in the treated cells, but there were changes in the cell cycle. All treated samples showed reduced number of cells in the S phase with increased G0/G1 (4b, 5a, 5b) and G2/M (4a) phase.

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The authors wish to thank the Croatian Science Foundation for support of this work (Projects IP-2014-09-7899, IP-2013-11-5660).

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Petrović Peroković, V., Car, Ž., Opačak-Bernardi, T. et al. In vitro antiproliferative study of novel adamantyl pyridin-4-ones. Mol Divers 21, 881–891 (2017).

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  • N-aryl 3-hydroxy-2-methylpyridin-4-ones
  • Adamantyl
  • Lipophilicity
  • Antiproliferation
  • Cancer