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Published on: June 29, 2011

Cinnamic acid induces apoptotic cell death and cytoskeleton disruption in human melanoma cells

Evandro Luís de Oliveira Niero1, Gláucia Maria Machado-Santelli

  • 1Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, Av, Prof, Lineu Prestes, 1524, Cidade Universitária, 05508-000 São Paulo, SP, Brazil.

Journal of Experimental & Clinical Cancer Research : CR
|May 25, 2013
PubMed

Insights

Cinnamic acid effectively inhibits melanoma cell growth by inducing apoptosis and DNA damage. While potent against cancer cells, its potential genotoxicity in normal melanocytes requires further study.

Area of Science:

  • Pharmacology
  • Cell Biology
  • Genetics

Background:

  • Cinnamic acid derivatives exhibit anticancer properties, including apoptosis induction via DNA damage.
  • Melanoma and melanocyte cell lines present distinct responses to cytotoxic agents.

Purpose of the Study:

  • To compare the cytotoxic and genotoxic effects of cinnamic acid on human melanoma (HT-144) and melanocyte (NGM) cell lines.
  • To investigate the mechanisms of cell death, including DNA synthesis inhibition, nuclear aberrations, and apoptosis.

Main Methods:

  • Cell viability assays (IC50 determination) were performed on HT-144 and NGM cells.
  • DNA damage and apoptosis were assessed using BrdU incorporation, nuclear aberration counts, and activated-caspase 3 staining.
  • Micronucleation, binucleation, and multinucleation frequencies were analyzed to evaluate genotoxicity.

Main Results:

  • Cinnamic acid demonstrated significant cytotoxicity against HT-144 cells (IC50 = 2.4 mM) compared to NGM cells.
  • Apoptosis, DNA synthesis inhibition, and nuclear aberrations were observed in HT-144 cells following treatment.
  • Increased micronucleation frequency in both cell types indicated genotoxic potential, with milder effects in NGM cells.

Conclusions:

  • Cinnamic acid exhibits effective antiproliferative activity against melanoma cells.
  • The compound induces apoptosis and DNA damage, leading to cell death in melanoma.
  • Potential genotoxicity in normal melanocytes warrants further investigation.

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