Human Gut Microbiota and Gastrointestinal Cancer

Area of Science:

• Microbiome research
• Cancer biology
• Gastroenterology

Background:

• The human gut microbiota is crucial for health and disease.
• Microbe-tumor interactions are key to understanding cancer prevention, carcinogenesis, and therapy.
• Microbial dysbiosis is linked to increased cancer susceptibility through various pathways.

Purpose of the Study:

• To review the influence of gut microbiota on gastrointestinal (GI) cancers.
• To explore the regulation of microbiota by diet, prebiotics, probiotics, synbiotics, antibiotics, and Traditional Chinese Medicine.
• To propose future strategies for GI cancer prevention and treatment.

Main Methods:

• Literature review of studies on gut microbiota and GI cancers.
• Analysis of mechanisms linking microbiota to carcinogenesis (inflammation, immune dysregulation, genetic instability).
• Examination of microbiota's impact on anticancer agent pharmacodynamics.

Main Results:

• Gut microbiota influences esophageal, gastric, colorectal, liver, and pancreatic cancers.
• Diet, prebiotics, probiotics, synbiotics, antibiotics, and TCM modulate gut microbiota.
• Microbiota and metabolites are implicated in carcinogenesis and interfere with cancer therapies.

Conclusions:

• Gut microbiota plays a significant role in GI cancer development and progression.
• Modulating the gut microbiota presents potential therapeutic and preventative strategies for GI cancers.
• Further research into gut microbiota-GI cancer interactions can lead to improved patient outcomes.