Potentiation of Antiproliferative Drug Activity by Lonidamine in Hepatocellular Carcinoma Cells

L. Ricotti, A. Tesei, F. De Paola, C. Milandri, D. Amadori, G. L. Frassineti, P. Ulivi, W. Zoli

Research output: Contribution to journalArticlepeer-review

Abstract

The ability of lonidamine (LND), a derivative of indazole-carboxylic acid, to modulate the cytotoxic activity of anticancer drugs was investigated in two human hepatocarcinoma (HCC) cell lines. The cytotoxicity of drugs used singly, in association or in sequence was evaluated using the Sulforhodamine B (SRB) assay. LND did not appreciably potentiate the effect of antitumor drugs when given before or simultaneously, in either cell line. Conversely, a synergistic interaction was observed in both cell lines when LND was given after conventional drugs. LND produced a moderate decrease in S-phase cell fraction and did not induce apoptosis. Conversely, paclitaxel (TAX) induced an important block in G2 and an increase in apoptosis. Following a 48-h TAX wash out, a progressive passage of cells from G2 to M phase was observed with a corresponding increase in apoptotic cells. Post-treatment with LND increased the cytotoxicity of some antitumor drugs, especially TAX, in hepatocarcinoma cells, possibly by preventing, as an energolytic drug, cell damage repair or by producing an additional effect on microtubule stabilization.

Original languageEnglish
Pages (from-to)480-487
Number of pages8
JournalJournal of Chemotherapy
Volume15
Issue number5
Publication statusPublished - Oct 2003

Keywords

  • Apoptosis
  • Cell cycle
  • Hepatocarcinoma
  • Lonidamine
  • Modulation by lonidamine

ASJC Scopus subject areas

  • Pharmacology (medical)
  • Microbiology (medical)

Fingerprint

Dive into the research topics of 'Potentiation of Antiproliferative Drug Activity by Lonidamine in Hepatocellular Carcinoma Cells'. Together they form a unique fingerprint.

Cite this