Table 2.
Summary of recent intratumor microbiota studies related to metastasis.
| Tumor type | Microbiota type | Effect | Ref |
|---|---|---|---|
| Breast cancer | Staphylococcus, Lactobacillus, and Streptococcus | Promoting tumor metastasis | (90) |
| Pancreatic cancer | Fusobacterium nucleatum | Promoting tumor metastasis | (92) |
| Colorectal cancer | Escherichia coli | metastasizes to the liver | (32) |
| Colorectal cancer | H. pylori, Escherichia coli, and Fusobacterium nucleatum | translocate into pancreatic tumors | (93) |
| Bladder cancer | E. coli, butyrate-producing bacterium SM4/1, and Oscillatoria | correlates with EMT | (94) |
| Pancreatic cancer | Proteobacteria, Bacteroidetes, and Firmicutes | Tumor progression | (7) |
| Colorectal cancer | Fusobacterium nucleatum | Promoting tumor metastasis | (95) |
| Oral squamous cell carcinoma | Fusobacterium nucleatum | promotes EMT | (96) |