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Lycopene affects proliferation and apoptosis of four malignant cell lines

H Salman1, M Bergman, M Djaldetti

  • 1Department of Medicine C, Rabin Medical Center-Golda Campus (Hasharon), Petah-Tiqva, and the Sackler School of Medicine, Tel-Aviv University, Ramat-Aviv, Israel.

Biomedicine & Pharmacotherapy = Biomedecine & Pharmacotherapie
|April 24, 2007
PubMed

Insights

Lycopene, a tomato compound, significantly reduces the proliferation of various cancer cells, including colon carcinoma and leukemia. Its effectiveness in inducing apoptosis, or programmed cell death, varies by cancer type and dosage.

Area of Science:

  • Oncology
  • Nutritional Science
  • Molecular Biology

Background:

  • Lycopene, a carotenoid found in tomatoes, is recognized for its potential health benefits, particularly in reducing chronic diseases.
  • Previous research suggests a link between lycopene consumption and a lower incidence of prostate and breast cancers.

Purpose of the Study:

  • To investigate the anti-proliferative and apoptotic effects of lycopene on various human malignant cell lines.
  • To determine the dose-dependent impact of lycopene on cancer cell growth and programmed cell death.

Main Methods:

  • Human malignant cell lines, including human colon carcinoma (HuCC), B chronic lymphocytic leukemia (EHEB), human erythroleukemia (K562), and Raji (Burkitt lymphoma), were incubated with varying concentrations of lycopene (1.0, 2.0, and 4.0 microM).
  • Cell proliferation capacity and apoptotic rates were assessed after lycopene treatment.

Main Results:

  • Lycopene demonstrated a significant dose-dependent inhibition of proliferation in K562, Raji, and HuCC cell lines.
  • A notable increase in apoptosis was observed in HuCC cells treated with 2.0 and 4.0 microM lycopene, and in Raji cells with 2.0 microM lycopene.
  • The anti-proliferative effect on EHEB cells was only significant at the highest lycopene concentration (4.0 microM).

Conclusions:

  • Lycopene exhibits anti-proliferative properties against diverse cancer cell types.
  • The induction of apoptosis by lycopene is dependent on both the concentration of lycopene and the specific type of malignant cell.
  • These findings highlight the potential of lycopene as a therapeutic agent in cancer treatment, with efficacy varying by cancer cell line and dosage.

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