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Table 1 Microbiota involved in cancer progression

From: Crosstalk between autophagy and microbiota in cancer progression

System

Cancer type

Microbiota

Tumor promotion

/Tumor suppression

Tumor Behavior

Molecular Mechanism

Ref.

Digestive System

Colorectal Cancer

Fusobacterium nucleatum

Tumor promotion

Proliferation and invasion

F. nucleatum regulates E-cadherin/β-catenin signaling pathway to promote colorectal proliferation and invasion.

[52]

  

Tumor promotion

Proliferation

F. nucleatum activates TLR4 and upregulates miR-21 to promote colorectal cancer proliferation.

[55]

 

Enterotoxigenic Bacteroides fragilis (ETBF)

Tumor promotion

Tumorigenesis

ETBF selectively activates STAT3 and induces TH17 inflammatory infiltrates for enhancing tumor growth.

[57]

 

Peptostreptococcus anaerobius

Tumor promotion

Proliferation and dysplasia

P. anaerobius interacts with TLR2 and TLR4 to increase intracellular ROS level, thus increases colon proliferation and dysplasia.

[59]

  

Tumor promotion

Initiation and proliferation

P. anaerobius drives CRC tumorigenesis via PCWBR2/ PI3K/AKT/NF-κB signaling axis.

[60]

 

Campylobacter jejuni

Tumor promotion

Initiation and proliferation

C. jejuni induces DNA damage and promotes colorectal tumorigenesis and growth via cytolethal distending toxin.

[51]

 

Streptococcus gallolyticus

Tumor promotion

Initiation

S. gallolyticus promotes normal or premalignant colorectal tissues into malignant tumor via IL-1, COX-2, and IL-8 induction.

[61]

 

Clostridium butyricum

Tumor suppression

Proliferation and metastasis

C. butyricum inhibits intestinal tumor development by modulating Wnt signaling and gut microbiota.

[62]

 

Bacteroides fragilis

Tumor suppression

Cancer development

B. fragilis prevents colitis-associated CRC by inhibiting the expression of CCR5.

[63]

 

Streptococcus thermophilus

Tumor suppression

Tumorigenesis

S. thermophilus secretes β-Galactosidase to inhibit tumorigenesis.

[64]

Gastric Cancer

Helicobacter pylori

Tumor promotion

Invasion

H. pylori infection increase VCAM1 expression in CAFs via JAK/STAT1 signaling pathway to facilitate tumor invasion.

[53]

Esophageal Carcinoma

Porphyromonas gingivalis

Tumor promotion

Proliferation and migration

P. gingivalis promote ESCC proliferation and migration via the miR-194/GRHL3/PTEN/ AKT signaling axis

[43]

Pancreatic Cancer

Porphyromonas gingivalis

Tumor promotion

Proliferation

P. gingivalis enhances tumor cell proliferation through strengthening AKT signaling and Cyclin D1 expression.

[49]

Liver Cancer

Helicobacter hepaticus

Tumor promotion

Proliferation

H. hepaticus promotes HCC by activating NF-κB regulated networks associated with innate and Th1-type adaptive immunity.

[65]

Oral Cancer

Porphyromonas gingivalis

Tumor suppression

Proliferation

P. gingivalis inhibits proliferation of oral cancer cells by inducing G1 cell cycle arrest.

[35]

  

Tumor promotion

Proliferation

P. gingivalis actives the miR-21/PDCD4/AP-1 signaling pathway to promote the proliferation of oral cancer.

[66]

Non-Digestive System

Lung Cancer

Herbaspirillum

Tumor promotion

Proliferation

Herbaspirillum stimulates IL-1β and IL-23 production, induces activation of Vγ6+Vδ1+ γδ T cells and tumor cell proliferation.

[67]

 

Veillonella

Tumor promotion

Cancer development

Veillonella activates PI3K signaling pathway to participate in tumor development.

[68]

Breast Cancer

Enterotoxigenic Bacteroides fragilis (ETBF)

Tumor promotion

Proliferation and migration

ETBF triggers breast cancer growth and metastasis through β-catenin and Notch1 pathways.

[69]

 

Faecalibacterium prausnitzii

Tumor suppression

Proliferation

F. prausnitzii suppresses the growth of breast cancer cells through inhibition of IL-6/STAT3 pathway.

[70]

  1. FadA Fusobacterium adhesin A, STAT3 Signal transducer and activator of transcription3, TLR2 toll-like receptor2, TLR4 toll-like receptor4, ROS reactive oxygen species, PCWBR2 putative cell wall binding repeat 2, SGMB Streptococcus gallolyticus member bacteria, IL-1 interleukin 1, COX-2 cyclooxygenase-2, IL-8 interleukin 8, CCR5 CC chemokine receptor 5, VCAM1 Vascular cell adhesion molecular 1, CAF cancer-associated fibroblasts, ESCC esophageal squamous cell carcinoma, IL-1β interleukin 1β, IL-23 interleukin 23, PI3K phosphatidylinositol-3 kinase, HCC hepatocellular carcinoma, PDCD4 programmed cell death 4, AP-1 activating protein-1