Introduction
1. The Human Microbiome
2. Microbial Pathogens Drive Certain Cancers
3. Metagenomic Sequencing Studies Reveal Associations between Commensal Bacteria and Cancer Incidence
4. Gnotobiotic Mouse Models Demonstrate. Causality and Provide Mechanistic Insights
5. Microbial Mechanisms of Oncogenesis and Tumor Suppression
5.1. Immune System and Inflammation
5.2. Diet and Microbial Metabolites
5.3. Cell Signaling Pathways
5.4. DNA Damage
5.5. Distant Sites
6. Cancer Treatment
6.1. Immunotherapy
6.2. Chemotherapy
6.3. Microbial Drug Targets in Oncology
6.4. Future Directions
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