Antiproliferative potency of structurally distinct dietary flavonoids on human colon cancer cells

doi:10.1016/S0304-3835(96)04458-8

Cancer Letters

Volume 110, Issues 1–2, 20 December 1996, Pages 41-48

https://doi.org/10.1016/S0304-3835(96)04458-8 Get rights and content

Abstract

Dietary flavonoids are known to be antiproliferative and may play an important role in cancer chemoprevention, especially cancers of the gastrointestinal tract, because of a direct contact with food. This study was designed to compare the antiproliferative potency of several structurally distinct dietary flavonoids in colon cancer cells, Caco-2 and HT-29, and in rat nontransformed intestinal crypt cells, IEC-6. Flavonoids varied significantly in their antiproliferative potency depending on the structural features but the observations were consistent among the three cell lines studied. Of the two most potent flavonoids, quercetin and genistein, the effect was found to be dose-dependent and chromatin condensation, an indication of apoptosis, was noticed. Quercetin was found to distribute throughout the cell with higher amounts in the perinuclear and nucleoli areas. The lack of specific cell membrane enrichment by quercetin was consistent with its lack of effect on the transepithelial resistance. While several flavonoids including quercetin were found to be unstable, the chemical instability did not correlate with the antiproliferative potency, although it may contribute to the antiproliferative effect.

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Antiproliferative potency of structurally distinct dietary flavonoids on human colon cancer cells

Abstract

Biochem. Biophys. Res. Commun.

Leukemia Res.

J. Nutr.

Free Rad. Biol. Med.

Cancer Lett.

Free Rad. Biol. Med.

J. Controlled Release

J. Nutr.

Am. J. Clin. Nutr.

Lancet

J. Nutr.

The effects of the bioflavonoid quercetin on squamous cell carcinoma of head and neck origin

Am. J. Surg.

Antiproliferative effects of isoflavones on human cancer cell lines established from the gastrointestinal tract

Cancer Res.

Quercetin enhances transforming growth factor β1 secretion by human ovarian cancer cells

Int. J. Cancer

Quercetin and rutin as inhibitors of azoxymethanol-induced colonic neoplasia

Carcinogenesis

Dietary flavonoids and cancer risk in the Zutphen elderly study

Nutr. Cancer