Abstract Title:

In vitro anti-proliferative activities of ellagic acid.

Abstract Source:

Chin J Integr Med. 2006 Jun;12(2):126-31. PMID: 15590271

Abstract Author(s):

Jack N Losso, Rishipal R Bansode, Alfred Trappey, Hiba A Bawadi, Robert Truax


Full Citation: "The potential cytotoxic and anti-proliferative activities of ellagic acid (a naturally occurring bioactive compound in berries, grapes, and nuts) was evaluated using human umbilical vein endothelial cells (HUVEC), normal human lung fibroblast cells HEL 299, Caco-2 colon, MCF-7 breast, Hs 578T breast, and DU 145 human prostatic cancer cells. Ellagic acid at concentration in the range 10-100 micromol/L did not affect the viability of normal fibroblast cells during a 24-hour incubation. An increase in adenosine triphosphate (ATP) bioluminescence of approximately 18-21% was observed in normal cells incubated with ellagic acid. In contrast, ellagic acid at 1-100 micromol/L dose-dependently inhibited HUVEC tube formation and proliferation on a reconstituted extracellular matrix and showed strong anti-proliferative activity against the colon, breast, and prostatic cancer cell lines investigated. The most sensitive cells were the Caco-2, and the most resistant were the breast cancer cells. Ellagic acid induced cancer cell death by apoptosis as shown by the microscopic examination of cell gross morphology. Ellagic acid induced reduced cancer cell viability as shown by decreased ATP levels of the cancer cells. After 24 hours incubation of 100 micromol/L of ellagic acid with Caco-2, MCF-7, Hs 578T, and DU 145 cancer cells, ellagic acid suppressed fetal bovine serum (FBS) stimulation of cell migration. The apoptosis induction was accompanied by a decreased in the levels of pro-matrix metalloproteinase-2 (pro-MMP-2 or gelatinase A), pro-matrix metalloproteinase-9 (pro-MMP-9 or gelatinase B), and vascular endothelial growth factor (VEGF(165)) in conditioned media. The results suggest that ellagic acid expressed a selective cytotoxicity and anti-proliferative activity, and induced apoptosis in Caco-2, MCF-7, Hs 578T, and DU 145 cancer cells without any toxic effect on the viability of normal human lung fibroblast cells. It was also observed that the mechanism of apoptosis induction in ellagic acid-treated cancer cells was associated with decreased ATP production, which is crucial for the viability of cancer cells."

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