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Int. J. Mol. Sci. 2017, 18(9), 1908; doi:10.3390/ijms18091908

Dietary Phenethyl Isothiocyanate Protects Mice from Colitis Associated Colon Cancer

Department of Health and Nutritional Sciences, Box 2275A, South Dakota State University, Brookings, SD 56007, USA
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Received: 30 June 2017 / Revised: 30 August 2017 / Accepted: 1 September 2017 / Published: 6 September 2017
(This article belongs to the Special Issue Nutraceuticals in Human Health and Disease)
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Abstract

We have previously reported alleviation of dextran sodium sulfate (DSS)-induced ulcerative colitis signs in phenethyl isothiocyanate (PEITC)-treated mice. Here we investigated chemoprotective activities of PEITC in mice with Azoxymethane-DSS induced colitis associated colon carcinogenesis. We also examined the molecular mediators associated with the PEITC effects using relevant cell lines. A 0.12% PEITC-enriched mouse-diet reduced mucosal and submucosal inflammation as well as glandular atypia by 12% and the frequency of adenocarcinoma by 17% with a concomitant improvement in overall disease activity indices compared to the diseased control group. Lipopolysaccharide-induced in vitro up-regulation of key mediators of inflammation, immune response, apoptosis, and cell proliferation were attenuated by 10 μM PEITC. Three of these mediators showed concentration-dependent reduction in respective mRNAs. Furthermore, PEITC inhibited Nuclear factor kappa B1 (NFκB1) proteins in a concentration-dependent manner. The NFκB1 mRNA expression inversely correlated (r = −0.940, p = 0.013) with tri-methylation of lysine 27 on histone 3 near its promoter region in a time-dependent manner. These results indicate that PEITC may slow down the development of colon carcinogenesis in an inflammatory intestinal setting which is potentially associated with epigenetic modulation of NFκB1 signaling. View Full-Text
Keywords: phenethyl isothiocyanate (PEITC); colitis associated colon cancer phenethyl isothiocyanate (PEITC); colitis associated colon cancer
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Liu, Y.; Dey, M. Dietary Phenethyl Isothiocyanate Protects Mice from Colitis Associated Colon Cancer. Int. J. Mol. Sci. 2017, 18, 1908.

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