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Inhibitory effect of radiosensitizer AK-2123 on experimental hepatic metastases and Ca2+ active transport

N P Konovalova1, L M Volkova, L V Tatyanenko

  • 1Institute of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region.

Neoplasma
|January 1, 1997
PubMed

Insights

The radiosensitizer AK-2123 significantly inhibits colon adenocarcinoma hepatic metastases in mice, even at low doses. This antimetastatic effect may stem from AK-2123

Area of Science:

  • Oncology
  • Pharmacology
  • Biochemistry

Background:

  • Hepatic metastases from colon adenocarcinoma pose a significant clinical challenge.
  • Radiosensitizers are investigated for their potential to enhance cancer treatment efficacy.

Purpose of the Study:

  • To evaluate the antimetastatic effect of the triazole radiosensitizer AK-2123 on colon adenocarcinoma liver metastases in mice.
  • To investigate the underlying mechanism of AK-2123's antimetastatic action.

Main Methods:

  • Intrasplenic injection of colon adenocarcinoma cells in syngenic mice to induce hepatic metastases.
  • Administration of AK-2123 at various doses.
  • Assay of calcium ion transport inhibition by (Ca2+-Mg2+)-dependent ATP-ase.

Main Results:

  • AK-2123 significantly inhibited the growth of hepatic metastases.
  • An antimetastatic effect was observed even at extremely low doses of AK-2123.
  • Therapeutic doses of AK-2123 inhibited calcium ion transport mediated by (Ca2+-Mg2+)-dependent ATP-ase.

Conclusions:

  • AK-2123 demonstrates considerable antimetastatic efficacy against colon adenocarcinoma hepatic metastases in a murine model.
  • The antimetastatic effect of AK-2123 is potentially linked to the inhibition of active calcium transport.

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