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Oral Microbiota: A New Insight into Cancer Progression, Diagnosis and Treatment

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Abstract

The polymorphic microbiome has been defined as one of the “Hallmarks of Cancer”. Extensive studies have now uncovered the role of oral microbiota in cancer development and progression. Bacteria, fungi, archaea, and viruses in the oral cavity interact dynamically with the oral microenvironment to maintain the oral micro-ecological homeostasis. This complex interaction is influenced by many factors, such as maternal transmission, personal factors and environmental factors. Dysbiosis of oral microbiota can disturbed this host–microbiota interaction, leading to systemic diseases. Numerous studies have shown the potential associations between oral microbiota and a variety of cancers. However, the underlying mechanisms and therapeutic insights are still poorly understood. In this review, we mainly focus on the following aspects: (1) the factors affect oral microbiota composition and function; (2) the interaction between microenvironment and oral microbiota; (3) the role of multi-kingdom oral microbiota in human health; (4) the potential underlying mechanisms and therapeutic benefits of oral microbiota against cancer. Finally, we aim to describe the impact of oral microbiota on cancer progression and provide novel therapeutic insights into cancer prevention and treatment by targeting oral microbiota.

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Abbreviations

Bad:

Bcl-2-associated death promoter

BAX:

Bcl-2-associated X

BRAF :

B-Raf proto-oncogene

C. albicans :

Candida albicans

CCA:

Constrained correspondence analysis

CDK:

Cyclin-dependent kinase

CH3SH:

Methyl mercaptan

COX:

Cyclooxygenase

CRA:

Colorectal adenoma

CRC:

Colorectal cancer

E2F:

E2 factor

EPS:

Extracellular polymeric substances

FadA:

Fusobacterium nucleatum Adhesin A

F. nucleatum :

Fusobacterium nucleatum

HMP:

Human Microbiome Project

HPV:

Human papillomavirus

hRAS :

HRas proto-oncogene

H2S:

Hydrogen sulfide

JAK1:

Janus kinase 1

KRAS:

Kirsten rat sarcoma virus

LPS:

Lipopolysaccharide

MAMPs:

Microbe-associated molecular patterns

MMP:

Matrix metalloproteinase

mTOR :

Mechanistic target of rapamycin kinase

MYC :

MYC proto-oncogene

NK:

Natural killer

OSCC:

Oral squamous cell carcinoma

P. gingivalis :

Porphyromonas gingivalis

PI3K:

Phosphoinositide 3-kinase

PI3KCA :

Phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha

PRRs:

Pattern recognition receptors

rRNA:

Ribosomal RNA

S. aureus :

Staphylococcus aureus

S. epidermidis :

Staphylococcus epidermidis

STAT3:

Signal transducer and activator of transcription 3

Streptococcus sp.:

Streptococcus Species

TIGIT:

T cell immunoglobulin and ITIM domain

TLRs:

Toll-like receptors

VSCs:

Volatile sulfur compounds

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Acknowledgements

This work was supported by MOST Key R&D Program of China (2022YFC2304703), National Natural Science Foundation of China (32270202), Innovative research team of high-level local universities in Shanghai. The authors are thankful for the support from all lab members in Liu Lab (Fun Guy Group) in Shanghai Jiao Tong University School of Medicine.

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NL conceived and designed the manuscript. XW and HX wrote the manuscript and drafted the figures and tables. NL revised the manuscript. All authors have read and approved the final manuscript.

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Correspondence to Ning-Ning Liu.

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Wang, XL., Xu, HW. & Liu, NN. Oral Microbiota: A New Insight into Cancer Progression, Diagnosis and Treatment. Phenomics 3, 535–547 (2023). https://doi.org/10.1007/s43657-023-00124-y

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  • DOI: https://doi.org/10.1007/s43657-023-00124-y

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