Table 8.

Intratumoural microbiota that can be targeted

Intratumoural microbiota	Characteristics	Results	References
C.butyricum	Capable of spontaneous aggregation within Colorectal cancer tissue	Promising anti-tumor efficacy coupled with relatively low toxicity and adverse effects	[119]
Clostridium	Colonization and proliferation are limited to anoxic TME	Promising anti-tumor efficacy	[120]
Salmonella, Escherichia	In the TME with relatively high oxygen content, colonization and proliferation were observed	Promising anti-tumor efficacy	[120]
Listeria Monocytogenes	Combined with radionuclide 188 rhenium (188Re) to provide radioactivity to pancreatic cancer metastasis	Good anti-tumor effect without serious side effects	[122]