Colon Carcinogenesis: The Interplay Between Diet and Gut Microbiota

Area of Science:

• Oncology
• Microbiology
• Nutrition Science

Background:

• Colorectal cancer (CRC) incidence is increasing globally, particularly in developed countries.
• Established risk factors include sedentary lifestyle, obesity, poor diet (red/processed meats, alcohol, low fiber), and genetics.
• Emerging evidence highlights the critical interplay between diet, gut microbiota, and CRC development.

Purpose of the Study:

• To explore the complex relationship between diet, gut microbiota, and colorectal cancer (CRC) carcinogenesis.
• To discuss the molecular mechanisms underlying CRC development influenced by gut microbes.
• To examine the role of human biological responses like inflammation and oxidative stress in CRC.

Main Methods:

• Literature review and synthesis of existing research on diet, gut microbiota, and CRC.
• Analysis of molecular mechanisms linking gut dysbiosis to colon carcinogenesis.
• Examination of human biological responses contributing to CRC risk.

Main Results:

• Dietary factors significantly influence gut microbiota composition and function.
• Gut microbiota dysbiosis, driven by diet and host responses, can promote colonic neoplasm.
• Inflammation, oxidative stress, and DNA damage are key mediators in CRC carcinogenesis.

Conclusions:

• Dietary interventions and gut microbiota modulation are promising strategies for CRC prevention.
• Understanding the diet-microbiota-host interaction is crucial for developing targeted CRC therapies.
• Further research is needed to establish causal links and optimize preventive measures.