Propolis and Cancer Therapy

Administration of Propolis and its Polyphenolic Compounds Delayed Tumor Formation and Growth, Drug Week, 12/23/05

Administration of propolis and its polyphenolic compounds might delay tumor formation and growth. . .

"Caffeic acid (CA) and caffeic acid phenethyl ester (CAPE), members of the polyphenolic compounds, are present in high concentrations in medicinal plants and propolis, a natural beehive product. A water-soluble extract of propolis (WSDP) and two components of propolis, CA and CAPE were investigated for direct antitumor activity in vivo and in vitro," explained N. Orsoilc and colleagues, University of Zagreb.

"The local presence of CA and CAPE in the tissue caused a significant delay in tumor formation and increased life span 29.30 to 51.73%, respectively. CA and CAPE, but not WSDP, significantly suppressed human HeLa cervical carcinoma cell proliferation in vitro."

The researchers concluded, "Based on these results, we postulate that the antitumor activity of polyphenolic compounds includes direct cytotoxic effects on tumor cells."

Orsoilc and colleagues published their study in Biological & Pharmaceutical Bulletin (Effects of local administration of propolis and its polyphenolic compounds on tumor formation and growth. Biol Pharm Bull, 2005;28(10):1928-1933).

For additional information, contact N. Orsoilc, University of Zagreb, Faculty Science, Dept. Animal Physiol, Rooseveltov Trg 6, Zagreb 10000, Croatia.