Interactions between diet and gut microbiota in cancer

Area of Science:

• Oncology
• Microbiology
• Nutrition Science

Background:

• Diet and gut microbiota play crucial roles in cancer susceptibility, resistance, and treatment response.
• Investigating diet-microbial interactions is vital for understanding carcinogenesis and developing effective cancer therapies.

Purpose of the Study:

• To interpret existing studies on diet-microbial interactions and their role in cancer.
• To assess how dietary patterns influence the gut microbiome composition and its impact on cancer development.
• To explore the mechanisms by which diet-induced microbial changes affect tumorigenesis and the tumor microenvironment.

Main Methods:

• Literature review and interpretation of studies focusing on diet, gut microbiota, and cancer.
• Analysis of dietary determinants of bacterial colonization in the intestine.
• Examination of how specific bacteria, influenced by diet, contribute to colonic epithelial tumorigenesis.
• Review of preclinical models used for studying these interactions.
• Highlighting relevant clinical trials on dietary interventions and cancer outcomes.

Main Results:

• Dietary components significantly influence the gut microbiota, affecting colonization by opportunistic and oncogenic bacteria.
• Diet-induced expansion of certain gut bacteria can promote colonic epithelial tumorigenesis and create an immunosuppressive tumor microenvironment.
• Preclinical models provide valuable insights into diet-microbiome-cancer interactions.
• Emerging clinical trials show promising effects of dietary alterations on the microbiome and cancer outcomes.

Conclusions:

• Diet and gut microbiota are key players in cancer development and therapeutic responses.
• Understanding diet-microbial interactions is crucial for developing novel strategies for cancer prevention and treatment.
• Dietary interventions targeting the gut microbiome hold promise for improving cancer outcomes.