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Preventive effects of Korean red ginseng on experimentally induced colitis and colon carcinogenesis

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Authors
Shin, Hoon-Jeong; Kim, Do-Hee; Zhong, Xiancai; Yum, Hye-Won; Kim, Su-Jung; Chun, Kyung-Soo; Na, Hye-Kyung; Surh, Young-Joon
Issue Date
2020-05
Citation
Journal of Traditional and Complementary Medicine, Vol.10 No.3, pp.198-206
Keywords
ColitisColon cancerCyclooxygenase-2Korean red ginsengNF-κBSTAT3
Abstract
© 2020 Center for Food and Biomolecules, National Taiwan UniversityKorean Red Ginseng (KRG) exerts chemopreventive effects on experimentally induced carcinogenesis through multiple mechanisms. In this study, we investigated effects of KRG on dextran sulfate sodium (DSS)-induced colitis and azoxymethane (AOM) plus DSS-induced colon carcinogenesis in mice. Male C57BL/6J mice were fed diet containing 1% KRG or a standard diet throughout the experiment. The mouse colitis was induced by administration of 3% DSS in drinking water for 1 week. DSS caused body weight loss, diarrhea, rectal bleeding and colon length shortening, and all these symptoms were ameliorated by KRG treatment. KRG inhibited DSS-induced expression of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) by suppressing activation of nuclear factor-kappa B (NF-κB) and signal transducer and activation of transcription 3 (STAT3). In another experiment, colon carcinogenesis was initiated by single intraperitoneal injection of AOM (10 mg/kg) and promoted by 2% DSS in drinking water. KRG administration relieved the symptoms of colitis and reduced the incidence, the multiplicity and the size of colon tumor. The up-regulation of COX-2, iNOS, c-Myc and Cyclin D1 by AOM plus DSS was attenuated in KRG fed mice which was associated with suppression of NF-κB and STAT3 activation. These results suggest that KRG is a potential candidate for chemoprevention of inflammation-associated cancer in the colon.
ISSN
2225-4110
URI
https://hdl.handle.net/10371/172808
DOI
https://doi.org/10.1016/j.jtcme.2020.04.004
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Graduate School of Convergence Science and Technology (융합과학기술대학원)Dept. of Molecular and Biopharmaceutical Sciences (분자의학 및 바이오제약학과)Journal Papers (저널논문_분자의학 및 바이오제약학과)
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