Propolis or Caffeic acid phenethyl ester (CAPE) inhibits growth and viability in multiple oral cancer cell lines
International Journal of Medical and Biomedical Studies
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Objective: Propolis is a natural antimicrobial resin from honeybee hives that contains caffeic acid phenethyl ester (CAPE), which has anti-proliferative activity against some human cancers, including colon, liver, lung and breast – although limited evidence has evaluated this potential in oral cancers. Based upon this information, the primary objective of this study was to evaluate the anti-tumor effects of CAPE against multiple well-characterized oral cancer cell lines. Methods: Using well-characterized oral cancer cell lines (SCC15, SCC25 and CAL27), CAPE was administered at 100 ug/mL to assess any effects on cellular viability or growth over three days. A normal, non-cancerous cell line (HGF-1) was also included. Results: The results of this pilot study demonstrated that CAPE administration significantly reduced both viability and proliferation in all three oral cancer cell lines. Viability was significantly reduced between 30.3% and 35.4% among the oral cancer cell lines (p<0.05), but remained unchanged in the HGF-1 normal cell control (p=0.878). Growth was significantly inhibited between 53.1% and 60.6% among the oral cancer cell lines (p<0.05) but was not affected in the HGF-1 normal cell control (p=0.341). Conclusions: Although the reductions in both cellular viability and proliferation were distinct for each cell line, all exhibited a similar trend and were within a narrowly defined range. These results strongly suggest that CAPE administration had a significant and immediate effect on oral cancer growth and viability and therefore should be considered as the basis for future studies as a potential complementary and alternative therapy for oral cancer.
Caffeic Acid Phenethyl Ester (CAPE); Propolis; Oral cancer; Complementary and alternative medicine
Alternative and Complementary Medicine | Medicine and Health Sciences
Yang, F. W.,
Propolis or Caffeic acid phenethyl ester (CAPE) inhibits growth and viability in multiple oral cancer cell lines.
International Journal of Medical and Biomedical Studies, 3(1),