Related Experiment Video
Updated: Mar 17, 2026
In vitro Organoid Culture of Primary Mouse Colon Tumors
Published on: May 17, 2013
Nutrient-Gene Interaction in Colon Cancer, from the Membrane to Cellular Physiology
Tim Y Hou1,2, Laurie A Davidson1,3,4, Eunjoo Kim1,5
1Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843;
Abstract:
The International Agency for Research on Cancer recently released an assessment classifying red and processed meat as "carcinogenic to humans" on the basis of the positive association between increased consumption and risk for colorectal cancer. Diet, however, can also decrease the risk for colorectal cancer and be used as a chemopreventive strategy. Bioactive dietary molecules, such as n-3 polyunsaturated fatty acids, curcumin, and fermentable fiber, have been proposed to exert chemoprotective effects, and their molecular mechanisms have been the focus of research in the dietary/chemoprevention field. Using these bioactives as examples, this review surveys the proposed mechanisms by which they exert their effects, from the nucleus to the cellular membrane. In addition, we discuss emerging technologies involving the culturing of colonic organoids to study the physiological effects of dietary bioactives. Finally, we address future challenges to the field regarding the identification of additional molecular mechanisms and other bioactive dietary molecules that can be utilized in our fight to reduce the incidence of colorectal cancer.
Insights
Dietary choices impact colorectal cancer risk. Certain bioactive molecules in food show potential for cancer prevention, offering a promising chemopreventive strategy against colorectal cancer.
Area of Science:
- Oncology
- Nutritional Science
- Molecular Biology
Background:
- Recent classification of red and processed meats as carcinogenic by the International Agency for Research on Cancer highlights the need for cancer prevention strategies.
- Diet plays a crucial role in modulating colorectal cancer risk, with potential chemopreventive applications.
- Bioactive dietary molecules are increasingly recognized for their potential to reduce cancer incidence.
Purpose of the Study:
- To review the proposed molecular mechanisms of chemoprotective effects of bioactive dietary molecules.
- To explore emerging technologies for studying dietary bioactives in colorectal cancer prevention.
- To identify future challenges and opportunities in the field of dietary chemoprevention for colorectal cancer.
Main Methods:
- Literature review of proposed molecular mechanisms of bioactive dietary molecules (n-3 polyunsaturated fatty acids, curcumin, fermentable fiber).
- Discussion of emerging technologies, including colonic organoid culturing, for studying dietary bioactives.
- Analysis of current challenges and future directions in dietary chemoprevention research.
Main Results:
- Bioactive dietary molecules exert chemoprotective effects through various molecular mechanisms, influencing cellular processes from the nucleus to the cell membrane.
- Colonic organoid models offer a promising platform for investigating the physiological impact of dietary bioactives.
- Further research is needed to identify additional molecular targets and bioactive compounds for colorectal cancer prevention.
Conclusions:
- Dietary interventions hold significant potential as a chemopreventive strategy for colorectal cancer.
- Understanding the molecular mechanisms of bioactive dietary molecules is key to developing effective prevention strategies.
- Emerging technologies like organoid culturing will advance the study of diet and cancer prevention.
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