Quercetin Confers Tumoricidal Activity Through Multipathway Mechanisms in A N-Methylnitrosourea Rat Model of Colon Cancer

Document Type : Research Articles


1 Hormones Department, National Research Centre, Giza, Egypt

2 Zoology Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt

3 Chemistry of Tannins Department, National Research Centre, Giza, Egypt,


Objective: This research was conducted to explore mechanisms behind the potency of quercetin in inhibiting colon cancer induced in an experimental model. Materials and Methods: Forty adult male rats of Wistar strain were distributed into 4 groups; a negative control group, a colon cancer bearing group, a quercetin-treated group and a 5-fluorouracil (5-FU)-treated group. Serum TAG72 and GAL3 levels were quantified by ELISA. Colonic Wnt5a and Axin-1 gene expression was estimated by PCR. In addition, colonic tissues were subjected to immunohistochemical examination of Bax expression and histological investigation of histopathological alterations. Results: Quercetin elicited significant reduction in serum TAG72 and GAL3 levels, in addition to significant suppression of colonic Wnt5a gene expression and amplification of colonic Axin-1 gene expression. Also, it caused moderate positive reaction for Bax in mucosal epithelium. Conclusion: The present research provides experimental evidence about the activity of quercetin in the colon cancer of rats. Inhibitory effects on cancer development might be ascribable to regulatory action on Wnt signaling and induction of apoptosis.


Volume 17, Issue 11
November 2016
Pages 4991-4998
  • Receive Date: 09 October 2016
  • Revise Date: 22 November 2016
  • Accept Date: 28 December 2016
  • First Publish Date: 28 December 2016