Anthocyanin-rich black currant extract suppresses the growth of human hepatocellular carcinoma cells

Anupam Bishayee, Erzsébet Háznagy-Radnai, Thomas Mbimba, Péter Sipos, Paolo Morazzoni, Altaf S. Darvesh, Deepak Bhatia, Judit Hohmann

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Abstract

Dietary antioxidants, such as anthocyanins, are helpful in the prevention and control of various diseases by counteracting the imbalance of oxidative and antioxidative factors in the living systems. Black currant (Ribes nigrum L., Grossulariaceae) is known to contain high amounts of anthocyanins (250 mg/100 g fresh fruit). Black currant fruits have been used in Asian and European traditional medicine for the treatment of a variety of diseases. Black currant extract has recently been found to be the second most effective amongst nine different berry extracts studied for their free radical scavenging activity. Constituents present in black currant juice have been found to exert a number of health-promoting effects, including immunomodulatory, antimicrobial and antiinflammatory actions, inhibition of low-density lipoprotein, and reduction of cardiovascular diseases. Although antioxidant and antiinflammatory effects of black currant juice could be of value in preventing and treating oxidative stress- and inflammation-driven cancers, no experimental evidence is available to now. The objective of the present study was to evaluate the potential antiproliferative effects of black currant fruit skin extract against HepG 2 human liver cancer cells. The aqueous extract yielded an anthocyanin-rich fraction with cyanidin-3-O-rutinoside as one of the major anthocyanins. This fraction exhibited a potent cytotoxic effect on HepG 2 cells and this effect was more pronounced than that of delphinidin and cyanidin, two major aglycones of anthocyanins present in black currant. Our results indicate, for the first time, that black currant skin containing an anthocyanin-rich fraction inhibits the proliferation of liver cancer cells, possibly due to additive as well as synergistic effects. This product could be useful in the prevention and treatment of human hepatocellular carcinoma.

Original languageEnglish
Pages (from-to)1613-1618
Number of pages6
JournalNatural product communications
Volume5
Issue number10
Publication statusPublished - Oct 20 2010

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Keywords

  • Anthocyanin
  • Black currant
  • Cyanidin
  • Cyanidin-3-O-rutinoside
  • Cytotoxicity
  • Delphinidin
  • HepG
  • Hepatocellular carcinoma
  • Ribus nigrum

ASJC Scopus subject areas

  • Pharmacology
  • Plant Science
  • Drug Discovery
  • Complementary and alternative medicine

Cite this

Bishayee, A., Háznagy-Radnai, E., Mbimba, T., Sipos, P., Morazzoni, P., Darvesh, A. S., Bhatia, D., & Hohmann, J. (2010). Anthocyanin-rich black currant extract suppresses the growth of human hepatocellular carcinoma cells. Natural product communications, 5(10), 1613-1618.