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Prakash P, Verma S, Gupta S. Influence of microbiome in intraprostatic inflammation and prostate cancer. Prostate 2024. [PMID: 38899408 DOI: 10.1002/pros.24756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/22/2024] [Accepted: 06/10/2024] [Indexed: 06/21/2024]
Abstract
BACKGROUND Chronic infection and inflammation have been linked to the development of prostate cancer. Dysbiosis of the oral and gut microbiomes and subsequent microbial translocation can lead to pathogenic prostate infections. Microbial-produced metabolites have also been associated with signaling pathways that promote prostate cancer development. A comprehensive discussion on the mechanisms of microbiome infection and the prostate microenvironment is essential to understand prostate carcinogenesis. METHODS Published studies were used from the National Center for Biotechnology Information (NCBI) database to conduct a narrative review. No restrictions were applied in the selection of articles. RESULTS Microbiome-derived short-chain fatty acids (SCFAs) have been found to upregulate multiple signaling pathways, including MAPK and PI3K, through IGF-1 signaling and M2 macrophage polarization. SCFAs can also upregulate Toll-like receptors, leading to chronic inflammation and the creation of a pro-prostate cancer environment. Dysbiosis of oral microbiota has been correlated with prostate infection and inflammation. Additionally, pathogenic microbiomes associated with urinary tract infections have shown a link to prostate cancer, with vesicoureteral reflux potentially contributing to prostate infection. CONCLUSIONS This review offers a comprehensive understanding of the impact of microbial infections linked to intraprostatic inflammation as a causative factor for prostate cancer. Further studies involving the manipulation of the microbiome and its produced metabolites may provide a more complete understanding of the microenvironmental mechanisms that promote prostate carcinogenesis.
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Affiliation(s)
- Pranav Prakash
- College of Arts and Sciences, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Urology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Shiv Verma
- Department of Urology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Sanjay Gupta
- Department of Urology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Nutrition, Case Western Reserve University, Cleveland, Ohio, USA
- Division of General Medical Sciences, Case Comprehensive Cancer Center, Cleveland, Ohio, USA
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2
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Lan Z, Zou K, Cui H, Zhao Y, Yu G. Porphyromonas gingivalis suppresses oral squamous cell carcinoma progression by inhibiting MUC1 expression and remodeling the tumor microenvironment. Mol Oncol 2024; 18:1174-1188. [PMID: 37666495 PMCID: PMC11076995 DOI: 10.1002/1878-0261.13517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/07/2023] [Accepted: 09/01/2023] [Indexed: 09/06/2023] Open
Abstract
Bacteria are the causative agents of various infectious diseases; however, the anti-tumor effect of some bacterial species has attracted the attention of many scientists. The human oral cavity is inhabited by abundant and diverse bacterial communities and some of these bacterial communities could play a role in tumor suppression. Therefore, it is crucial to find oral bacterial species that show anti-tumor activity on oral cancers. In the present study, we found that a high abundance of Porphyromonas gingivalis, an anaerobic periodontal pathogen, in the tumor microenvironment (TME) was positively associated with the longer survival of patients with oral squamous cell carcinoma (OSCC). An in vitro assay confirmed that P. gingivalis accelerated the death of OSCC cells by inducing cell cycle arrest at the G2/M phase, thus exerting its anti-tumor effect. We also found that P. gingivalis significantly decreased tumor growth in a 4-nitroquinoline-1-oxide-induced in situ OSCC mouse model. The transcriptomics data demonstrated that P. gingivalis suppressed the biosynthesis of mucin O-glycan and other O-glycans, as well as the expression of chemokines. Validation experiments further confirmed the downregulation of mucin-1 (MUC1) and C-X-C motif chemokine 17 (CXCL17) expression by P. gingivalis treatment. Flow cytometry analysis showed that P. gingivalis successfully reversed the immunosuppressive TME, thereby suppressing OSCC growth. In summary, the findings of the present study indicated that the rational use of P. gingivalis could serve as a promising therapeutic strategy for OSCC.
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Affiliation(s)
- Zhou Lan
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhouChina
| | - Ke‐Long Zou
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhouChina
| | - Hao Cui
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhouChina
| | - Yu‐Yue Zhao
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhouChina
| | - Guang‐Tao Yu
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhouChina
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3
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Conde‐Pérez K, Aja‐Macaya P, Buetas E, Trigo‐Tasende N, Nasser‐Ali M, Rumbo‐Feal S, Nión P, Arribas EM, Estévez LS, Otero‐Alén B, Noguera JF, Concha Á, Pardiñas‐López S, Carda‐Diéguez M, Gómez‐Randulfe I, Martínez‐Lago N, Ladra S, Aparicio LMA, Bou G, Mira Á, Vallejo JA, Poza M. The multispecies microbial cluster of Fusobacterium, Parvimonas, Bacteroides and Faecalibacterium as a precision biomarker for colorectal cancer diagnosis. Mol Oncol 2024; 18:1093-1122. [PMID: 38366793 PMCID: PMC11076999 DOI: 10.1002/1878-0261.13604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 12/27/2023] [Accepted: 01/26/2024] [Indexed: 02/18/2024] Open
Abstract
The incidence of colorectal cancer (CRC) has increased worldwide, and early diagnosis is crucial to reduce mortality rates. Therefore, new noninvasive biomarkers for CRC are required. Recent studies have revealed an imbalance in the oral and gut microbiomes of patients with CRC, as well as impaired gut vascular barrier function. In the present study, the microbiomes of saliva, crevicular fluid, feces, and non-neoplastic and tumor intestinal tissue samples of 93 CRC patients and 30 healthy individuals without digestive disorders (non-CRC) were analyzed by 16S rRNA metabarcoding procedures. The data revealed that Parvimonas, Fusobacterium, and Bacteroides fragilis were significantly over-represented in stool samples of CRC patients, whereas Faecalibacterium and Blautia were significantly over-abundant in the non-CRC group. Moreover, the tumor samples were enriched in well-known periodontal anaerobes, including Fusobacterium, Parvimonas, Peptostreptococcus, Porphyromonas, and Prevotella. Co-occurrence patterns of these oral microorganisms were observed in the subgingival pocket and in the tumor tissues of CRC patients, where they also correlated with other gut microbes, such as Hungatella. This study provides new evidence that oral pathobionts, normally located in subgingival pockets, can migrate to the colon and probably aggregate with aerobic bacteria, forming synergistic consortia. Furthermore, we suggest that the group composed of Fusobacterium, Parvimonas, Bacteroides, and Faecalibacterium could be used to design an excellent noninvasive fecal test for the early diagnosis of CRC. The combination of these four genera would significantly improve the reliability of a discriminatory test with respect to others that use a single species as a unique CRC biomarker.
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Affiliation(s)
- Kelly Conde‐Pérez
- Microbiome and Health Group (meiGAbiome), Microbiology Research Group, Institute of Biomedical Research (INIBIC) – Interdisciplinary Center for Chemistry and Biology (CICA) – University of A Coruña (UDC) – CIBER de Enfermedades Infecciosas (CIBERINFEC‐ISCIII), Servicio de MicrobiologíaUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | - Pablo Aja‐Macaya
- Microbiome and Health Group (meiGAbiome), Microbiology Research Group, Institute of Biomedical Research (INIBIC) – Interdisciplinary Center for Chemistry and Biology (CICA) – University of A Coruña (UDC) – CIBER de Enfermedades Infecciosas (CIBERINFEC‐ISCIII), Servicio de MicrobiologíaUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | - Elena Buetas
- Genomic and Health Department, FISABIO FoundationCenter for Advanced Research in Public HealthValenciaSpain
| | - Noelia Trigo‐Tasende
- Microbiome and Health Group (meiGAbiome), Microbiology Research Group, Institute of Biomedical Research (INIBIC) – Interdisciplinary Center for Chemistry and Biology (CICA) – University of A Coruña (UDC) – CIBER de Enfermedades Infecciosas (CIBERINFEC‐ISCIII), Servicio de MicrobiologíaUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | - Mohammed Nasser‐Ali
- Microbiome and Health Group (meiGAbiome), Microbiology Research Group, Institute of Biomedical Research (INIBIC) – Interdisciplinary Center for Chemistry and Biology (CICA) – University of A Coruña (UDC) – CIBER de Enfermedades Infecciosas (CIBERINFEC‐ISCIII), Servicio de MicrobiologíaUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | - Soraya Rumbo‐Feal
- Microbiome and Health Group (meiGAbiome), Microbiology Research Group, Institute of Biomedical Research (INIBIC) – Interdisciplinary Center for Chemistry and Biology (CICA) – University of A Coruña (UDC) – CIBER de Enfermedades Infecciosas (CIBERINFEC‐ISCIII), Servicio de MicrobiologíaUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | - Paula Nión
- Microbiome and Health Group (meiGAbiome), Microbiology Research Group, Institute of Biomedical Research (INIBIC) – Interdisciplinary Center for Chemistry and Biology (CICA) – University of A Coruña (UDC) – CIBER de Enfermedades Infecciosas (CIBERINFEC‐ISCIII), Servicio de MicrobiologíaUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | - Elsa Martín‐De Arribas
- Database Laboratory, Research Center for Information and Communication Technologies (CITIC)University of A Coruña (UDC)A CoruñaSpain
| | - Lara S. Estévez
- Pathology Service and BiobankUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | - Begoña Otero‐Alén
- Pathology Service and BiobankUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | - José F. Noguera
- Surgery ServiceUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | - Ángel Concha
- Pathology Service and BiobankUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | - Simón Pardiñas‐López
- Periodontology and Oral Surgery, Pardiñas Medical Dental Clinic – Cell Therapy and Regenerative Medicine GroupInstitute of Biomedical Research (INIBIC)A CoruñaSpain
| | - Miguel Carda‐Diéguez
- Genomic and Health Department, FISABIO FoundationCenter for Advanced Research in Public HealthValenciaSpain
| | - Igor Gómez‐Randulfe
- Medical Oncology DepartmentUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | | | - Susana Ladra
- Database Laboratory, Research Center for Information and Communication Technologies (CITIC)University of A Coruña (UDC)A CoruñaSpain
| | - Luis M. A. Aparicio
- Medical Oncology DepartmentUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | - Germán Bou
- Microbiome and Health Group (meiGAbiome), Microbiology Research Group, Institute of Biomedical Research (INIBIC) – Interdisciplinary Center for Chemistry and Biology (CICA) – University of A Coruña (UDC) – CIBER de Enfermedades Infecciosas (CIBERINFEC‐ISCIII), Servicio de MicrobiologíaUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | - Álex Mira
- Genomic and Health Department, FISABIO FoundationCenter for Advanced Research in Public HealthValenciaSpain
| | - Juan A. Vallejo
- Microbiome and Health Group (meiGAbiome), Microbiology Research Group, Institute of Biomedical Research (INIBIC) – Interdisciplinary Center for Chemistry and Biology (CICA) – University of A Coruña (UDC) – CIBER de Enfermedades Infecciosas (CIBERINFEC‐ISCIII), Servicio de MicrobiologíaUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
| | - Margarita Poza
- Microbiome and Health Group (meiGAbiome), Microbiology Research Group, Institute of Biomedical Research (INIBIC) – Interdisciplinary Center for Chemistry and Biology (CICA) – University of A Coruña (UDC) – CIBER de Enfermedades Infecciosas (CIBERINFEC‐ISCIII), Servicio de MicrobiologíaUniversity Hospital of A Coruña (CHUAC)A CoruñaSpain
- Microbiome and Health Group, Faculty of SciencesUniversity of A Coruña (UDC)A CoruñaSpain
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Kaliamoorthy S, Priya Sayeeram S, Gowdhaman N, Jayaraj M, Radhika B, Chellapandi S, Elumalai A, Archana SP, Raju K, Palla S. Association of Periodontal Red Complex Bacteria With the Incidence of Gastrointestinal Cancers: A Systematic Review and Meta-Analysis. Cureus 2024; 16:e59251. [PMID: 38813341 PMCID: PMC11134483 DOI: 10.7759/cureus.59251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 04/29/2024] [Indexed: 05/31/2024] Open
Abstract
Porphyromonas gingivalis is the primary microbe in the "periodontal red complex" bacteria (PRCB) along with Tannerella forsythia and Treponema denticola, which are linked to periodontal disease (PD). These pathogens are also implicated in various systemic disorders, but their association with the incidence of gastrointestinal (GI) cancer is less explored. A systematic review followed by a meta-analysis was conducted as per standard guidelines (Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) 2022) to find this association between GI cancers and PRCB after a literature search for full-text papers in the English language (between 2010 and 2023) in databases (Cochrane Library, PubMed, and Web of Science) with suitable keywords using the Boolean search strategy. Data extraction involved titles, abstracts, and full texts retrieved and scored by the modified Newcastle-Ottawa Scale. The data were analyzed by the Review Manager (RevMan 5.2, Cochrane Collaboration, Denmark). Standard Cochran Q test and I2 statistics (for heterogeneity) and a random effects model (pooled OR with 95% CI) were applied to report results. P. gingivalis among the PRCB was linked to GI cancers (OR: 2.16; 95% CI: 1.34-3.47). T. forsythia and T. denticola did not show meaningful associations as per existing evidence for GI cancers.
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Affiliation(s)
- Sriram Kaliamoorthy
- Department of Dentistry, Vinayaka Missions Medical College and Hospital, Vinayaka Missions Research Foundation, Karaikal, IND
| | - Sugantha Priya Sayeeram
- Department of Prosthodontics, Government Dental College and Hospital, The Tamil Nadu Dr. MGR Medical University, Pudukkottai, IND
| | - N Gowdhaman
- Departmentof Physiology, Dhanalakshmi Srinivasan Medical College and Hospital, The Tamil Nadu Dr. MGR Medical University, Perambalur, IND
| | - Merlin Jayaraj
- Department of Oral and Maxillofacial Pathology, Chettinad Dental College and Research Institute, The Tamil Nadu Dr. MGR Medical University, Chennai, IND
| | - B Radhika
- Department of Periodontics, Chettinad Dental College and Research Institute, The Tamil Nadu Dr. MGR Medical University, Chennai, IND
| | - Sugirtha Chellapandi
- Department of Periodontics, Chettinad Dental College and Research Institute, The Tamil Nadu Dr. MGR Medical University, Chennai, IND
| | - Agila Elumalai
- Department of Periodontics, Chettinad Dental College and Research Institute, The Tamil Nadu Dr. MGR Medical University, Chennai, IND
| | - Sai P Archana
- Department of Oral Medicine and Radiology, Chettinad Dental College and Research Institute, The Tamil Nadu Dr. MGR Medical University, Chennai, IND
| | - Kanmani Raju
- Department of Oral Medicine and Radiology, Chettinad Dental College and Research Institute, The Tamil Nadu Dr. MGR Medical University, Chennai, IND
| | - Santosh Palla
- Department of Oral Medicine and Radiology, Sun Dental Care, Chennai, IND
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5
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Lin CL, Ying TH, Yang SF, Lin CL, Chiou HL, Hsieh YH. Magnolin targeting of the JNK/Sp1/MMP15 signaling axis suppresses cervical cancer microenvironment and metastasis via microbiota modulation. Cancer Lett 2024; 583:216584. [PMID: 38123014 DOI: 10.1016/j.canlet.2023.216584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023]
Abstract
Magnolin (MGL), a compound derived from the magnolia plant, has inhibitory effects on tumor cell invasion and growth. His study aims to explore the antitumor effect and underlying molecular mechanism of MGL against human cervical cancer. We found that MGL inhibited the proliferation, migration, and invasiveness of cervical cancer cells in vitro and in vivo. The underlying mechanism was shown to involve MGL-induced inhibition of JNK/Sp1-mediated MMP15 transcription and translation. Overexpression of JNK/Sp1 resulted in significant restoration of MMP15 expression and the migration and invasion capabilities of MGL-treated cervical cancer cells. MGL modulated the cervical cancer microenvironment by inhibiting cell metastasis via targeting IL-10/IL-10 receptor B (IL-10RB) expression, thereby attenuating JNK/Sp1-mediated MMP15 expression. Analysis of the gut microbiota of mice fed MGL revealed a significant augmentation in Lachnospiraceae bacteria, known for their production of sodium butyrate. In vivo experiments also demonstrated synergistic inhibition of cervical cancer cell metastasis by MGL and sodium butyrate co-administration. Our study provides pioneering evidence of a novel mechanism by which MGL inhibits tumor growth and metastasis through the IL-10/IL-10RB targeting of the JNK/Sp1/MMP15 axis in human cervical cancer cells.
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Affiliation(s)
- Chia-Liang Lin
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan; Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Tsung-Ho Ying
- Department of Obstetrics and Gynecology, School of Medicine, College of Medicine, Chung Shan Medical University, Taichung, Taiwan; Department of Obstetrics and Gynecology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan; Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chu-Liang Lin
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Hui-Ling Chiou
- School of Medical Laboratory and Biotechnology, Chung Shan Medical University, Taichung, Taiwan
| | - Yi-Hsien Hsieh
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan; Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan.
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Lu YQ, Qiao H, Tan XR, Liu N. Broadening oncological boundaries: the intratumoral microbiota. Trends Microbiol 2024:S0966-842X(24)00007-6. [PMID: 38310023 DOI: 10.1016/j.tim.2024.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 01/07/2024] [Accepted: 01/18/2024] [Indexed: 02/05/2024]
Abstract
The microbiota of solid tumors was identified >100 years ago; however, heterogeneous composition and diversity have been revealed only recently. Growing evidence has suggested that several functional mechanisms of the intratumoral microbiota affect tumorigenesis and progression, suggesting that the intratumoral microbiota is a promising biomarker for multiple cancers. The low biomass of the intratumoral microbiota poses a major challenge to related research, thus necessitating the use of a multiple-modality integrated framework to resolve this dilemma. Advanced techniques such as single-cell sequencing provide significant clues, and the gradual optimization of functional experiments and culture-based methods enables deeper investigation of the underlying mechanisms involved. In this review, we outline the current state of research on the intratumoral microbiota and describe the challenges and comprehensive strategies for future research.
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Affiliation(s)
- Ying-Qi Lu
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P.R. China
| | - Han Qiao
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P.R. China
| | - Xi-Rong Tan
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P.R. China
| | - Na Liu
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P.R. China.
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Gu Z, Liu Y. A bibliometric and visualized in oral microbiota and cancer research from 2013 to 2022. Discov Oncol 2024; 15:24. [PMID: 38302656 PMCID: PMC10834930 DOI: 10.1007/s12672-024-00878-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 01/30/2024] [Indexed: 02/03/2024] Open
Abstract
Numerous studies have highlighted the implication of oral microbiota in various cancers. However, no bibliometric analysis has been conducted on the relationship between oral microbiota and cancer. This bibliometric analysis aimed to identify the research hotspots in oral microbiota and cancer research, as well as predict future research trends. The literature published relating to oral microbiota and cancer was searched from the Web of Science Core Collection database (WoSCC) from 2013 to 2022. VOSviewer or Citespace software was used to perform the bibliometric analysis, focusing on countries, institutions, authors, journals, keywords and references. A total of 1516 publications were included in the analysis. The number of publications related oral microbiota and cancer increased annually, reaching its peak in 2022 with 287 papers. The United States (456) and China (370) were the countries with the most publications and made significant contributions to the field. Sears CL and Zhou XD were the most productive authors. The high frequency of keywords revealed key topics, including cancer (colorectal cancer, oral cancer), oral microbiota (Fusobacterium nucleatum, Porphyromonas gingivalis), and inflammation (periodontal disease). The latest trend keywords were F. nucleatum, dysbiosis, prognosis, tumor microenvironment, gastric microbiota, complications and survival, suggesting a new hotspot in the field of oral microbiota and cancer. Our study provides a comprehensive analysis of oral microbiota and cancer research, revealing an increase in publications in recent years. Future research directions will continue to focus on the diversity of oral microbiota impacted by cancers and the underlying mechanism connecting them, providing new ideas for targeted therapy of tumorigenesis.
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Affiliation(s)
- Zhiyu Gu
- Hospital of Stomatology, Zunyi Medical University, Zunyi, 563000, China
| | - Yunkun Liu
- Hospital of Stomatology, Zunyi Medical University, Zunyi, 563000, China.
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Yamazaki K, Kamada N. Exploring the oral-gut linkage: Interrelationship between oral and systemic diseases. Mucosal Immunol 2024; 17:147-153. [PMID: 38007003 DOI: 10.1016/j.mucimm.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 11/08/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023]
Abstract
The oral cavity harbors a diverse microbiota that plays a significant role in maintaining homeostasis. Disruption of this balance can lead to various oral diseases, including periodontitis. Accumulating evidence suggests a connection between periodontitis and extra-oral diseases such as cardiovascular disease, rheumatoid arthritis, obesity, and diabetes. During periodontitis, oral bacteria enter the bloodstream directly, impacting extra-oral organs. Furthermore, recent studies have uncovered another pathway, the direct oral-gut axis, where oral bacteria translocate to the gut through an enteral route, influencing gut microbiota and metabolism. Oral pathobionts associated with exacerbation of periodontal disease are implicated in gut pathology, including inflammatory bowel disease and colorectal cancer through ectopic gut colonization. Furthermore, oral bacteria can provoke host immune responses, leading to colitis and other inflammatory diseases. Conversely, mechanisms by which extra-oral conditions exacerbate oral diseases, such as periodontitis, are also beginning to be elucidated. This review discusses the bidirectional interrelationship between oral and systemic diseases based on the oral-gut linkage.
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Affiliation(s)
- Kyoko Yamazaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, USA
| | - Nobuhiko Kamada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, USA; Department of Pathology, University of Michigan, Ann Arbor, USA; WPI Immunology Frontier Research Center, Osaka University, Suita, Japan.
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Li X, Guan H, Ma C, Dai Y, Su J, Chen X, Yuan Q, Wang J. Combination of bulk RNA sequencing and scRNA sequencing uncover the molecular characteristics of MAPK signaling in kidney renal clear cell carcinoma. Aging (Albany NY) 2024; 16:1414-1439. [PMID: 38217548 PMCID: PMC10866414 DOI: 10.18632/aging.205436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 12/01/2023] [Indexed: 01/15/2024]
Abstract
The MAPK signaling pathway significantly impacts cancer progression and resistance; however, its functions remain incompletely assessed across various cancers, particularly in kidney renal clear cell carcinoma (KIRC). Therefore, there is an urgent need for comprehensive pan-cancer investigations of MAPK signaling, particularly within the context of KIRC. In this research, we obtained TCGA pan-cancer multi-omics data and conducted a comprehensive analysis of the genomic and transcriptomic characteristics of the MAPK signaling pathway. For in-depth investigation in KIRC, status of MAPK pathway was quantitatively estimated by ssGSEA and Ward algorithm was utilized for cluster analysis. Molecular characteristics and clinical prognoses of KIRC patients with distinct MAPK activities were comprehensively explored using a series of bioinformatics algorithms. Subsequently, a combination of LASSO and COX regression analyses were utilized sequentially to construct a MAPK-related signature to help identify the risk level of each sample. Patients in the C1 subtype exhibited relatively higher levels of MAPK signaling activity, which were associated with abundant immune cell infiltration and favorable clinical outcomes. Single-cell RNA sequencing (scRNA-seq) analysis of KIRC samples identified seven distinct cell types, and endothelial cells in tumor tissues had obviously higher MAPK scores than normal tissues. The immunohistochemistry results indicated the reduced expression levels of PAPSS1, MAP3K11, and SPRED1 in KIRC samples. In conclusion, our study represents the first integration of bulk RNA sequencing and single-cell RNA sequencing to elucidate the molecular characteristics of MAPK signaling in KIRC, providing a solid foundation for precision oncology.
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Affiliation(s)
- Xiunan Li
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Hewen Guan
- Department of Dermatology, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Chuanyu Ma
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Yunfei Dai
- Department of General Surgery, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Ji Su
- Department of Urology, Central Hospital of Benxi, Benxi, Liaoning, China
| | - Xu Chen
- Department of General Surgery, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Qihang Yuan
- Department of General Surgery, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Jianbo Wang
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
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10
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Lu Y, Huang R, Zhang Y, Xiang W, Zhang X, Chen F, An L, Yuan H, Wen F, Xu Y. Porphyromonas gingivalis induced UCHL3 to promote colon cancer progression. Am J Cancer Res 2023; 13:5981-5995. [PMID: 38187053 PMCID: PMC10767335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 12/01/2023] [Indexed: 01/09/2024] Open
Abstract
Porphyromonas gingivalis (P. gingivalis), a Gram-negative oral anaerobe, was demonstrated to facilitate colonization and progression in colonic tumor, while the underlying mechanism still remains to be clarified. Here, we identified the proteome profile changed by P. gingivalis infection in HCT116 cells through label-free quantitative proteomics, and found that deubiquitinase UCHL3 was a key protein that response for P. gingivalis infection. By CCK8, colony formation, wound healing assays, and in vivo subcutaneous tumor mouse moudle, we proved that P. gingivalis could promote the proliferation and migration of colon cancer, while the process was inhibited by UCHL3 knock down. Through IP-MS, we identified GNG12 as the UCHL3 interacting protein. The protein level of GNG12 was significantly reduced when knock out UCHL3. Thus we propose that GNG12 is a substrate protein of UCHL3. Furthermore, we demonstrated that overexpression of GNG12 could restore the tumor inhibition effect caused by UCHL3 knock down, and UCHL3-GNG12 axis promote colon cancer progression via the NF-κB signal pathway. Collectively, this study unveiled that P. gingivalis infection up-regulated UCHL3 and stabilized its substrate protein GNG12 to activate the NF-κB signal pathway to promote colon cancer progression. Our study indicate that UCHL3 is a potential biomarker and therapeutic target for colon cancer which infected with P. gingivalis.
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Affiliation(s)
- Yang Lu
- Department of Stomatology, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai, China
| | - Renhuan Huang
- Department of Stomatology, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai, China
| | - Yiming Zhang
- Department of Stomatology, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai, China
| | - Wei Xiang
- Department of Stomatology, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai, China
| | - Xu Zhang
- Department of Stomatology, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai, China
| | - Fubo Chen
- Department of Stomatology, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai, China
| | - Liwei An
- Department of Stomatology, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai, China
- Department of Medical Stomatology, Shanghai Tenth People’s Hospital, Tongji University Cancer Center, Tongji University School of MedicineShanghai, China
| | - Hang Yuan
- Department of Stomatology, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai, China
| | - Fuping Wen
- Department of Stomatology, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai, China
| | - Yuanzhi Xu
- Department of Stomatology, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai, China
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11
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Chen Z, Guan D, Wang Z, Li X, Dong S, Huang J, Zhou W. Microbiota in cancer: molecular mechanisms and therapeutic interventions. MedComm (Beijing) 2023; 4:e417. [PMID: 37937304 PMCID: PMC10626288 DOI: 10.1002/mco2.417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 10/04/2023] [Accepted: 10/12/2023] [Indexed: 11/09/2023] Open
Abstract
The diverse bacterial populations within the symbiotic microbiota play a pivotal role in both health and disease. Microbiota modulates critical aspects of tumor biology including cell proliferation, invasion, and metastasis. This regulation occurs through mechanisms like enhancing genomic damage, hindering gene repair, activating aberrant cell signaling pathways, influencing tumor cell metabolism, promoting revascularization, and remodeling the tumor immune microenvironment. These microbiota-mediated effects significantly impact overall survival and the recurrence of tumors after surgery by affecting the efficacy of chemoradiotherapy. Moreover, leveraging the microbiota for the development of biovectors, probiotics, prebiotics, and synbiotics, in addition to utilizing antibiotics, dietary adjustments, defensins, oncolytic virotherapy, and fecal microbiota transplantation, offers promising alternatives for cancer treatment. Nonetheless, due to the extensive and diverse nature of the microbiota, along with tumor heterogeneity, the molecular mechanisms underlying the role of microbiota in cancer remain a subject of intense debate. In this context, we refocus on various cancers, delving into the molecular signaling pathways associated with the microbiota and its derivatives, the reshaping of the tumor microenvironmental matrix, and the impact on tolerance to tumor treatments such as chemotherapy and radiotherapy. This exploration aims to shed light on novel perspectives and potential applications in the field.
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Affiliation(s)
- Zhou Chen
- The First Clinical Medical CollegeLanzhou UniversityLanzhouGansuChina
- The First Hospital of Lanzhou UniversityLanzhouGansuChina
| | - Defeng Guan
- The First Clinical Medical CollegeLanzhou UniversityLanzhouGansuChina
- The First Hospital of Lanzhou UniversityLanzhouGansuChina
| | - Zhengfeng Wang
- The First Clinical Medical CollegeLanzhou UniversityLanzhouGansuChina
- The First Hospital of Lanzhou UniversityLanzhouGansuChina
| | - Xin Li
- The Second Clinical Medical CollegeLanzhou UniversityLanzhouGansuChina
- The Department of General SurgeryLanzhou University Second HospitalLanzhouGansuChina
| | - Shi Dong
- The Second Clinical Medical CollegeLanzhou UniversityLanzhouGansuChina
- The Department of General SurgeryLanzhou University Second HospitalLanzhouGansuChina
| | - Junjun Huang
- The First Hospital of Lanzhou UniversityLanzhouGansuChina
| | - Wence Zhou
- The First Clinical Medical CollegeLanzhou UniversityLanzhouGansuChina
- The Department of General SurgeryLanzhou University Second HospitalLanzhouGansuChina
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12
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Tortora SC, Agurto MG, Martello LA. The oral-gut-circulatory axis: from homeostasis to colon cancer. Front Cell Infect Microbiol 2023; 13:1289452. [PMID: 38029267 PMCID: PMC10663299 DOI: 10.3389/fcimb.2023.1289452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
The human microbiota is widely recognized as providing crucial health benefits to its host, specifically by modulating immune homeostasis. Microbial imbalance, known as dysbiosis, is linked to several conditions in the body. The oral cavity and gut host the two largest microbial communities playing a major role in microbial-associated diseases. While the oral-gut axis has been previously explored, our review uniquely highlights the significance of incorporating the circulatory system into this axis. The interaction between immune cells, inflammatory factors, circulating bacteria, and microbial metabolites influences the homeostasis of both the oral and gut microbiota in a bidirectional manner. In this comprehensive review, we aim to describe the bacterial components of the oral-gut-circulatory axis in both health and disease, with a specific focus on colon cancer.
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Affiliation(s)
- Sofia C. Tortora
- Department of Medicine and Division of Gastroenterology & Hepatology, SUNY Downstate Health Sciences University, Brooklyn, NY, United States
| | - Maria Gonzalez Agurto
- Departamento de Rehabilitación Craneofacial Integral, Universidad de Los Andes, Santiago, Chile
| | - Laura A. Martello
- Department of Medicine and Division of Gastroenterology & Hepatology, SUNY Downstate Health Sciences University, Brooklyn, NY, United States
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13
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Meng R, Zeng M, Ji Y, Huang X, Xu M. The potential role of gut microbiota outer membrane vesicles in colorectal cancer. Front Microbiol 2023; 14:1270158. [PMID: 38029123 PMCID: PMC10661380 DOI: 10.3389/fmicb.2023.1270158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/02/2023] [Indexed: 12/01/2023] Open
Abstract
Colorectal cancer (CRC) is a common malignant digestive tract tumor in colorectal regions. Considerable evidence now shows that the gut microbiota have essential roles in CRC occurrence and development. Most Gram-negative bacteria release outer membrane vesicles (OMVs) via outer membrane blistering, which contain specific cargoes which interact with host cells via intercellular communications, host immune regulation, and gut microbiota homeostasis. Studies have also shown that OMVs selectively cluster near tumor cells, thus cancer treatment strategies based on OMVs have attracted considerable research attention. However, little is known about the possible impact of gut microbiota OMVs in CRC pathophysiology. Therefore, in this review, we summarize the research progress on molecular composition and function of OMV, and review the microbial dysbiosis in CRC. We then focus on the potential role of gut microbiota OMVs in CRC. Finally, we examine the clinical potential of OMVs in CRC treatment, and their main advantages and challenges in tumor therapy.
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Affiliation(s)
- Ran Meng
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- Department of Biochemistry and Molecular Biology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Minmin Zeng
- Department of Biochemistry and Molecular Biology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Ying Ji
- Department of Biochemistry and Molecular Biology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xinxiang Huang
- Department of Biochemistry and Molecular Biology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Min Xu
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- Institute of Digestive Diseases, Jiangsu University, Zhenjiang, Jiangsu, China
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14
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Yu S, Wang S, Xiong B, Peng C. Gut microbiota: key facilitator in metastasis of colorectal cancer. Front Oncol 2023; 13:1270991. [PMID: 38023192 PMCID: PMC10643165 DOI: 10.3389/fonc.2023.1270991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Colorectal cancer (CRC) ranks third in terms of incidence among all kinds of cancer. The main cause of death is metastasis. Recent studies have shown that the gut microbiota could facilitate cancer metastasis by promoting cancer cells proliferation, invasion, dissemination, and survival. Multiple mechanisms have been implicated, such as RNA-mediated targeting effects, activation of tumor signaling cascades, secretion of microbiota-derived functional substances, regulation of mRNA methylation, facilitated immune evasion, increased intravasation of cancer cells, and remodeling of tumor microenvironment (TME). The understanding of CRC metastasis was further deepened by the mechanisms mentioned above. In this review, the mechanisms by which the gut microbiota participates in the process of CRC metastasis were reviewed as followed based on recent studies.
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Affiliation(s)
- Siyi Yu
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan, China
- Hubei Cancer Clinical Study Center, Wuhan, China
| | - Shuyi Wang
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan, China
- Hubei Cancer Clinical Study Center, Wuhan, China
| | - Bin Xiong
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan, China
- Hubei Cancer Clinical Study Center, Wuhan, China
| | - Chunwei Peng
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan, China
- Hubei Cancer Clinical Study Center, Wuhan, China
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15
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Lan Z, Liu WJ, Cui H, Zou KL, Chen H, Zhao YY, Yu GT. The role of oral microbiota in cancer. Front Microbiol 2023; 14:1253025. [PMID: 37954233 PMCID: PMC10634615 DOI: 10.3389/fmicb.2023.1253025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/11/2023] [Indexed: 11/14/2023] Open
Abstract
Cancer remains a significant global challenge, with an estimated 47% increase in cancer patients from 2020 to 2040. Increasing research has identified microorganism as a risk factor for cancer development. The oral cavity, second only to the colon, harbors more than 700 bacterial species and serves as a crucial microbial habitat. Although numerous epidemiological studies have reported associations between oral microorganisms and major systemic tumors, the relationship between oral microorganisms and cancers remains largely unclear. Current research primarily focuses on respiratory and digestive system tumors due to their anatomical proximity to the oral cavity. The relevant mechanism research mainly involves 47% dominant oral microbial population that can be cultured in vitro. However, further exploration is necessary to elucidate the mechanisms underlying the association between oral microbiota and tumors. This review systematically summarizes the reported correlations between oral microbiota and common cancers while also outlining potential mechanisms that may guide biological tumor treatment.
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Affiliation(s)
- Zhou Lan
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Wei-Jia Liu
- Department of Oral Mucosal Diseases, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hao Cui
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Ke-Long Zou
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Hao Chen
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Yu-Yue Zhao
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Guang-Tao Yu
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
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16
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Sun J, Chen F, Wu G. Potential effects of gut microbiota on host cancers: focus on immunity, DNA damage, cellular pathways, and anticancer therapy. THE ISME JOURNAL 2023; 17:1535-1551. [PMID: 37553473 PMCID: PMC10504269 DOI: 10.1038/s41396-023-01483-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/14/2023] [Accepted: 07/20/2023] [Indexed: 08/10/2023]
Abstract
The symbiotic bacteria that live in the human gut and the metabolites they produce have long influenced local and systemic physiological and pathological processes of the host. The gut microbiota are increasingly being recognized for its impact on a range of human diseases, including cancer, it may play a key role in the occurrence, progression, treatment, and prognosis of many types of cancer. Understanding the functional role of the gut microbiota in cancer is crucial for the development of the era of personalized medicine. Here, we review recent advances in research and summarize the important associations and clear experimental evidence for the role of the gut microbiota in a variety of human cancers, focus on the application and possible challenges associated with the gut microbiota in antitumor therapy. In conclusion, our research demonstrated the multifaceted mechanisms of gut microbiota affecting human cancer and provides directions and ideas for future clinical research.
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Affiliation(s)
- Jiaao Sun
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, China
| | - Feng Chen
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, China.
| | - Guangzhen Wu
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, China.
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17
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Baima G, Ribaldone DG, Romano F, Aimetti M, Romandini M. The Gum-Gut Axis: Periodontitis and the Risk of Gastrointestinal Cancers. Cancers (Basel) 2023; 15:4594. [PMID: 37760563 PMCID: PMC10526746 DOI: 10.3390/cancers15184594] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/01/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
Periodontitis has been linked to an increased risk of various chronic non-communicable diseases, including gastrointestinal cancers. Indeed, dysbiosis of the oral microbiome and immune-inflammatory pathways related to periodontitis may impact the pathophysiology of the gastrointestinal tract and its accessory organs through the so-called "gum-gut axis". In addition to the hematogenous spread of periodontal pathogens and inflammatory cytokines, recent research suggests that oral pathobionts may translocate to the gastrointestinal tract through saliva, possibly impacting neoplastic processes in the gastrointestinal, liver, and pancreatic systems. The exact mechanisms by which oral pathogens contribute to the development of digestive tract cancers are not fully understood but may involve dysbiosis of the gut microbiome, chronic inflammation, and immune modulation/evasion, mainly through the interaction with T-helper and monocytic cells. Specifically, keystone periodontal pathogens, including Porphyromonas gingivalis and Fusobacterium nucleatum, are known to interact with the molecular hallmarks of gastrointestinal cancers, inducing genomic mutations, and promote a permissive immune microenvironment by impairing anti-tumor checkpoints. The evidence gathered here suggests a possible role of periodontitis and oral dysbiosis in the carcinogenesis of the enteral tract. The "gum-gut axis" may therefore represent a promising target for the development of strategies for the prevention and treatment of gastrointestinal cancers.
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Affiliation(s)
- Giacomo Baima
- Department of Surgical Sciences, University of Turin, 10125 Torino, Italy; (G.B.); (F.R.); (M.A.)
| | | | - Federica Romano
- Department of Surgical Sciences, University of Turin, 10125 Torino, Italy; (G.B.); (F.R.); (M.A.)
| | - Mario Aimetti
- Department of Surgical Sciences, University of Turin, 10125 Torino, Italy; (G.B.); (F.R.); (M.A.)
| | - Mario Romandini
- Department of Periodontology, Faculty of Dentistry, University of Oslo, 0313 Oslo, Norway
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18
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Kinskey JC, Huda TI, Gozlan EC, Quach JU, Arturo JF, Chobrutskiy A, Chobrutskiy BI, Blanck G. The presence of intratumoral Porphyromonas gingivalis correlates with a previously defined pancreatic adenocarcinoma, immune cell expression phenotype and with tumor resident, adaptive immune receptor features. Carcinogenesis 2023; 44:411-417. [PMID: 37195907 DOI: 10.1093/carcin/bgad033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/20/2023] [Accepted: 05/15/2023] [Indexed: 05/19/2023] Open
Abstract
The association between pancreatic adenocarcinoma (PAAD) and the pancreatic microbiome is not fully understood, although bacteria may decrease the effectiveness of chemotherapy and lead to anti-apoptotic, pro-inflammatory microenvironments. To better understand the relationship between the PAAD microbiome and the microenvironment, we identified Porphyromonas gingivalis-positive PAAD samples and found a strong association between intratumoral P. gingivalis and: (i) an immune cell gene expression phenotype previously defined by others as gene program 7; and (ii) recovery of immunoglobulin recombination, sequencing reads. We applied a novel chemical complementarity scoring algorithm, suitable for a big data setting, and determined that the previously established P. gingivalis antigen, rpgB had a reduced chemical complementarity with T-cell receptor (TCR) complementarity-determining region-3 amino acid sequences recovered from PAAD samples with P. gingivalis in comparison to TCR-rpgB chemical complementarity represented by the PAAD samples that lacked P. gingivalis. This finding strengthens the existing body of evidence correlating P. gingivalis with PAAD, which may have implications for the treatment and prognosis of patients. Furthermore, demonstrating the correlation of P. gingivalis and gene program 7 raises the question of whether P. gingivalis infection is responsible for the gene program 7 subdivision of PAAD?
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Affiliation(s)
- Jacob C Kinskey
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, TX 77030, USA
| | - Taha I Huda
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Etienne C Gozlan
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Jessica U Quach
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Juan F Arturo
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Andrea Chobrutskiy
- Department of Pediatrics, Oregon Health and Science University, Portland, OR 97239, USA
| | - Boris I Chobrutskiy
- Department of Internal Medicine, Oregon Health and Science University, Portland, OR 97239, USA
| | - George Blanck
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
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19
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Freitas P, Silva F, Sousa JV, Ferreira RM, Figueiredo C, Pereira T, Oliveira HP. Machine learning-based approaches for cancer prediction using microbiome data. Sci Rep 2023; 13:11821. [PMID: 37479864 PMCID: PMC10362018 DOI: 10.1038/s41598-023-38670-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 07/12/2023] [Indexed: 07/23/2023] Open
Abstract
Emerging evidence of the relationship between the microbiome composition and the development of numerous diseases, including cancer, has led to an increasing interest in the study of the human microbiome. Technological breakthroughs regarding DNA sequencing methods propelled microbiome studies with a large number of samples, which called for the necessity of more sophisticated data-analytical tools to analyze this complex relationship. The aim of this work was to develop a machine learning-based approach to distinguish the type of cancer based on the analysis of the tissue-specific microbial information, assessing the human microbiome as valuable predictive information for cancer identification. For this purpose, Random Forest algorithms were trained for the classification of five types of cancer-head and neck, esophageal, stomach, colon, and rectum cancers-with samples provided by The Cancer Microbiome Atlas database. One versus all and multi-class classification studies were conducted to evaluate the discriminative capability of the microbial data across increasing levels of cancer site specificity, with results showing a progressive rise in difficulty for accurate sample classification. Random Forest models achieved promising performances when predicting head and neck, stomach, and colon cancer cases, with the latter returning accuracy scores above 90% across the different studies conducted. However, there was also an increased difficulty when discriminating esophageal and rectum cancers, failing to differentiate with adequate results rectum from colon cancer cases, and esophageal from head and neck and stomach cancers. These results point to the fact that anatomically adjacent cancers can be more complex to identify due to microbial similarities. Despite the limitations, microbiome data analysis using machine learning may advance novel strategies to improve cancer detection and prevention, and decrease disease burden.
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Affiliation(s)
- Pedro Freitas
- INESC TEC - Institute for Systems and Computer Engineering, Technology and Science, 4200-465, Porto, Portugal.
- FEUP - Faculty of Engineering, University of Porto, 4200-465, Porto, Portugal.
| | - Francisco Silva
- INESC TEC - Institute for Systems and Computer Engineering, Technology and Science, 4200-465, Porto, Portugal
- FCUP -Faculty of Science, University of Porto, 4150-177, Porto, Portugal
| | - Joana Vale Sousa
- INESC TEC - Institute for Systems and Computer Engineering, Technology and Science, 4200-465, Porto, Portugal
- FEUP - Faculty of Engineering, University of Porto, 4200-465, Porto, Portugal
| | - Rui M Ferreira
- Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135, Porto, Portugal
- i3S - Instituto de Investigação e Inovação em Saúde, University of Porto, 4200-135, Porto, Portugal
| | - Céu Figueiredo
- Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135, Porto, Portugal
- i3S - Instituto de Investigação e Inovação em Saúde, University of Porto, 4200-135, Porto, Portugal
- FMUP - Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal
| | - Tania Pereira
- INESC TEC - Institute for Systems and Computer Engineering, Technology and Science, 4200-465, Porto, Portugal
| | - Hélder P Oliveira
- INESC TEC - Institute for Systems and Computer Engineering, Technology and Science, 4200-465, Porto, Portugal
- FCUP -Faculty of Science, University of Porto, 4150-177, Porto, Portugal
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20
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Inamura K. Oral-Gut Microbiome Crosstalk in Cancer. Cancers (Basel) 2023; 15:3396. [PMID: 37444506 DOI: 10.3390/cancers15133396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
Increased research efforts have led to a growing body of evidence on the human microbiota and its critical role in balanced health [...].
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Affiliation(s)
- Kentaro Inamura
- Division of Pathology, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo 135-8550, Japan
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21
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Wong CC, Yu J. Gut microbiota in colorectal cancer development and therapy. Nat Rev Clin Oncol 2023:10.1038/s41571-023-00766-x. [PMID: 37169888 DOI: 10.1038/s41571-023-00766-x] [Citation(s) in RCA: 55] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/13/2023] [Indexed: 05/13/2023]
Abstract
Colorectal cancer (CRC) is one of the commonest cancers globally. A unique aspect of CRC is its intimate association with the gut microbiota, which forms an essential part of the tumour microenvironment. Research over the past decade has established that dysbiosis of gut bacteria, fungi, viruses and Archaea accompanies colorectal tumorigenesis, and these changes might be causative. Data from mechanistic studies demonstrate the ability of the gut microbiota to interact with the colonic epithelia and immune cells of the host via the release of a diverse range of metabolites, proteins and macromolecules that regulate CRC development. Preclinical and some clinical evidence also underscores the role of the gut microbiota in modifying the therapeutic responses of patients with CRC to chemotherapy and immunotherapy. Herein, we summarize our current understanding of the role of gut microbiota in CRC and outline the potential translational and clinical implications for CRC diagnosis, prevention and treatment. Emphasis is placed on how the gut microbiota could now be better harnessed by developing targeted microbial therapeutics as chemopreventive agents against colorectal tumorigenesis, as adjuvants for chemotherapy and immunotherapy to boost drug efficacy and safety, and as non-invasive biomarkers for CRC screening and patient stratification. Finally, we highlight the hurdles and potential solutions to translating our knowledge of the gut microbiota into clinical practice.
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Affiliation(s)
- Chi Chun Wong
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jun Yu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
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22
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Vitetta L. Letter on "Role of gut microbiome in immune regulation and immune checkpoint therapy of colorectal cancer". Med Oncol 2023; 40:143. [PMID: 37040017 DOI: 10.1007/s12032-023-02006-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 03/23/2023] [Indexed: 04/12/2023]
Abstract
Investigations that decipher the human microbiome have reformed the way medicine is focusing on bacteria. An interesting research review recently published in the journal of Digestive Diseases and Sciences conceivably linked adjunctive commensal intestinal bacteria with the capacity to modulate the immune microenvironment towards immune checkpoint inhibitor (ICIs) efficacy of cancer immunotherapy. Evidence has emerged that the intestinal microbiome can modulate outcomes to ICIs therapies via two major mechanisms, namely mechanisms that are antigen-specific (i.e., epitopes are shared between microbial and tumour antigens that can enhance or reduce anti-tumour immune responses) and those mechanisms that are antigen-independent (i.e., modulation of responses to ICIs by engaging innate and/or adaptive immune cells).
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Affiliation(s)
- Luis Vitetta
- Faculty of Medicine and Health, The University of Sydney, Sydney, 2006, Australia.
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23
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Elnaggar JH, Huynh VO, Lin D, Hillman RT, Abana CO, El Alam MB, Tomasic KC, Karpinets TV, Kouzy R, Phan JL, Wargo J, Holliday EB, Das P, Mezzari MP, Ajami NJ, Lynn EJ, Minsky BD, Morris VK, Milbourne A, Messick CA, Klopp AH, Futreal PA, Taniguchi CM, Schmeler KM, Colbert LE. HPV-related anal cancer is associated with changes in the anorectal microbiome during cancer development. Front Immunol 2023; 14:1051431. [PMID: 37063829 PMCID: PMC10090447 DOI: 10.3389/fimmu.2023.1051431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 03/13/2023] [Indexed: 03/30/2023] Open
Abstract
Background Squamous cell carcinoma of the anus (SCCA) is a rare gastrointestinal cancer. Factors associated with progression of HPV infection to anal dysplasia and cancer are unclear and screening guidelines and approaches for anal dysplasia are less clear than for cervical dysplasia. One potential contributing factor is the anorectal microbiome. In this study, we aimed to identify differences in anal microbiome composition in the settings of HPV infection, anal dysplasia, and anal cancer in this rare disease. Methods Patients were enrolled in two prospective studies. Patients with anal dysplasia were part of a cross-sectional cohort that enrolled women with high-grade lower genital tract dysplasia. Anorectal tumor swabs were prospectively collected from patients with biopsy-confirmed locally advanced SCCA prior to receiving standard-of-care chemoradiotherapy (CRT). Patients with high-grade lower genital tract dysplasia without anal dysplasia were considered high-risk (HR Normal). 16S V4 rRNA Microbiome sequencing was performed for anal swabs. Alpha and Beta Diversity and composition were compared for HR Normal, anal dysplasia, and anal cancer. Results 60 patients with high-grade lower genital tract dysplasia were initially enrolled. Seven patients had concurrent anal dysplasia and 44 patients were considered HR Normal. Anorectal swabs from 21 patients with localized SCCA were included, sequenced, and analyzed in the study. Analysis of weighted and unweighted UniFrac distances demonstrated significant differences in microbial community composition between anal cancer and HR normal (p=0.018). LEfSe identified that all three groups exhibited differential enrichment of specific taxa. Peptoniphilus (p=0.028), Fusobacteria (p=0.0295), Porphyromonas (p=0.034), and Prevotella (p=0.029) were enriched in anal cancer specimens when compared to HR normal. Conclusion Although alpha diversity was similar between HR Normal, dysplasia and cancer patients, composition differed significantly between the three groups. Increased anorectal Peptoniphilus, Fusobacteria, Porphyromonas, and Prevotella abundance were associated with anal cancer. These organisms have been reported in various gastrointestinal cancers with roles in facilitating the proinflammatory microenvironment and neoplasia progression. Future work should investigate a potential role of microbiome analysis in screening for anal dysplasia and investigation into potential mechanisms of how these microbial imbalances influence the immune system and anal carcinogenesis.
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Affiliation(s)
- Jacob H. Elnaggar
- School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, United States
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Victoria O. Huynh
- School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Daniel Lin
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - R. Tyler Hillman
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
- Cancer Prevention Research Institute of Texas Scholar in Cancer Research, Austin, TX, United States
| | - Chike O. Abana
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Molly B. El Alam
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Katarina C. Tomasic
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Tatiana V. Karpinets
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Ramez Kouzy
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Jae L. Phan
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Jennifer Wargo
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Emma B. Holliday
- Gastrointestinal Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Prajnan Das
- Gastrointestinal Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Melissa P. Mezzari
- The Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, United States
| | - Nadim J. Ajami
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Erica J. Lynn
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Bruce D. Minsky
- Gastrointestinal Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Van K. Morris
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Andrea Milbourne
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Craig A. Messick
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Ann H. Klopp
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - P. Andrew Futreal
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Cullen M. Taniguchi
- Gastrointestinal Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Kathleen M. Schmeler
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Lauren E. Colbert
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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Leveraging Scheme for Cross-Study Microbiome Machine Learning Prediction and Feature Evaluations. Bioengineering (Basel) 2023; 10:bioengineering10020231. [PMID: 36829725 PMCID: PMC9952031 DOI: 10.3390/bioengineering10020231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/02/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023] Open
Abstract
The microbiota has proved to be one of the critical factors for many diseases, and researchers have been using microbiome data for disease prediction. However, models trained on one independent microbiome study may not be easily applicable to other independent studies due to the high level of variability in microbiome data. In this study, we developed a method for improving the generalizability and interpretability of machine learning models for predicting three different diseases (colorectal cancer, Crohn's disease, and immunotherapy response) using nine independent microbiome datasets. Our method involves combining a smaller dataset with a larger dataset, and we found that using at least 25% of the target samples in the source data resulted in improved model performance. We determined random forest as our top model and employed feature selection to identify common and important taxa for disease prediction across the different studies. Our results suggest that this leveraging scheme is a promising approach for improving the accuracy and interpretability of machine learning models for predicting diseases based on microbiome data.
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25
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Intratumoral microbiota: roles in cancer initiation, development and therapeutic efficacy. Signal Transduct Target Ther 2023; 8:35. [PMID: 36646684 PMCID: PMC9842669 DOI: 10.1038/s41392-022-01304-4] [Citation(s) in RCA: 57] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/31/2022] [Accepted: 12/26/2022] [Indexed: 01/18/2023] Open
Abstract
Microorganisms, including bacteria, viruses, fungi, and other eukaryotes, play critical roles in human health. An altered microbiome can be associated with complex diseases. Intratumoral microbial components are found in multiple tumor tissues and are closely correlated with cancer initiation and development and therapy efficacy. The intratumoral microbiota may contribute to promotion of the initiation and progression of cancers by DNA mutations, activating carcinogenic pathways, promoting chronic inflammation, complement system, and initiating metastasis. Moreover, the intratumoral microbiota may not only enhance antitumor immunity via mechanisms including STING signaling activation, T and NK cell activation, TLS production, and intratumoral microbiota-derived antigen presenting, but also decrease antitumor immune responses and promote cancer progression through pathways including upregulation of ROS, promoting an anti-inflammatory environment, T cell inactivation, and immunosuppression. The effect of intratumoral microbiota on antitumor immunity is dependent on microbiota composition, crosstalk between microbiota and the cancer, and status of cancers. The intratumoral microbiota may regulate cancer cell physiology and the immune response by different signaling pathways, including ROS, β-catenin, TLR, ERK, NF-κB, and STING, among others. These viewpoints may help identify the microbiota as diagnosis or prognosis evaluation of cancers, and as new therapeutic strategy and potential therapeutic targets for cancer therapy.
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26
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Virulence Factors of the Periodontal Pathogens: Tools to Evade the Host Immune Response and Promote Carcinogenesis. Microorganisms 2023; 11:microorganisms11010115. [PMID: 36677408 PMCID: PMC9860638 DOI: 10.3390/microorganisms11010115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/27/2022] [Accepted: 12/28/2022] [Indexed: 01/04/2023] Open
Abstract
Periodontitis is the most common chronic, inflammatory oral disease that affects more than half of the population in the United States. The disease leads to destruction of the tooth-supporting tissue called periodontium, which ultimately results in tooth loss if uncured. The interaction between the periodontal microbiota and the host immune cells result in the induction of a non-protective host immune response that triggers host tissue destruction. Certain pathogens have been implicated periodontal disease formation that is triggered by a plethora of virulence factors. There is a collective evidence on the impact of periodontal disease progression on systemic health. Of particular interest, the role of the virulence factors of the periodontal pathogens in facilitating the evasion of the host immune cells and promotion of carcinogenesis has been the focus of many researchers. The aim of this review is to examine the influence of the periodontal pathogens Aggregatibacter actinomycetemcomitans (A. actinomycetemcomitans), Porphyromonas gingivalis (P. gingivalis), and Fusobacterium nucleatum (F. nucleatum) in the modulation of the intracellular signaling pathways of the host cells in order to evade the host immune response and interfere with normal host cell death and the role of their virulence factors in this regard.
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27
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章 可, 孙 妍, 潘 乙. [Developments in Research on the Relationship Between Porphyromonas gingivalis and Non-Oral Diseases]. SICHUAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF SICHUAN UNIVERSITY. MEDICAL SCIENCE EDITION 2023; 54:20-26. [PMID: 36647638 PMCID: PMC10409047 DOI: 10.12182/20230160509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Indexed: 01/18/2023]
Abstract
Porphyromonas gingivalis ( P. gingivalis) is a common periodontal pathogen. Recently, there has been increasing evidence suggesting that P. gingivalis is not only a common pathogen in the oral cavity, but is also closely associated with non-oral diseases, including inflammatory bowel disease, cancer, cardiovascular diseases, Alzheimer's disease, rheumatoid arthritis, diabetes mellitus, premature birth and non-alcoholic hepatitis, etc. Herein, we reviewed the developments in recent years in research on the relationship between P. gingivalis, a periodontal pathogen, and non-oral diseases, which will help determine whether P. gingivalis could be used as an auxiliary diagnostic biomarker or a potential therapeutic target for these non-oral diseases, thus contributing to the development of treatment strategies for the relevant diseases.
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Affiliation(s)
- 可可 章
- 温州医科大学口腔医学院·附属口腔医院 (温州 325000)School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325000, China
| | - 妍 孙
- 温州医科大学口腔医学院·附属口腔医院 (温州 325000)School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325000, China
| | - 乙怀 潘
- 温州医科大学口腔医学院·附属口腔医院 (温州 325000)School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325000, China
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Kudra A, Muszyński D, Sobocki BK, Atzeni A, Carbone L, Kaźmierczak-Siedlecka K, Połom K, Kalinowski L. Insights into oral microbiome and colorectal cancer - on the way of searching new perspectives. Front Cell Infect Microbiol 2023; 13:1159822. [PMID: 37124035 PMCID: PMC10130407 DOI: 10.3389/fcimb.2023.1159822] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/28/2023] [Indexed: 05/02/2023] Open
Abstract
Microbiome is a keystone polymicrobial community that coexist with human body in a beneficial relationship. These microorganisms enable the human body to maintain homeostasis and take part in mechanisms of defense against infection and in the absorption of nutrients. Even though microbiome is involved in physiologic processes that are beneficial to host health, it may also cause serious detrimental issues. Additionally, it has been proven that bacteria can migrate to other human body compartments and colonize them even although significant structural differences with the area of origin exist. Such migrations have been clearly observed when the causes of genesis and progression of colorectal cancer (CRC) have been investigated. It has been demonstrated that the oral microbiome is capable of penetrating into the large intestine and cause impairments leading to dysbiosis and stimulation of cancerogenic processes. The main actors of such events seem to be oral pathogenic bacteria belonging to the red and orange complex (regarding classification of bacteria in the context of periodontal diseases), such as Porphyromonas gingivalis and Fusobacterium nucleatum respectively, which are characterized by significant amount of cancerogenic virulence factors. Further examination of oral microbiome and its impact on CRC may be crucial on early detection of this disease and would allow its use as a precise non-invasive biomarker.
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Affiliation(s)
- Anna Kudra
- Scientific Circle of Studies Regarding Personalized Medicine Associated with Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Gdansk, Poland
| | - Damian Muszyński
- Scientific Circle of Studies Regarding Personalized Medicine Associated with Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Gdansk, Poland
| | - Bartosz Kamil Sobocki
- Scientific Circle of Oncology and Radiotherapy, Medical University of Gdansk, Gdansk, Poland
| | - Alessandro Atzeni
- Institut d’Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Unitat de Nutrició, Reus, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Institute of Health Carlos III, Madrid, Spain
| | - Ludovico Carbone
- Department of Medicine Surgery and Neuroscience, University of Siena, Siena, Italy
| | - Karolina Kaźmierczak-Siedlecka
- Department of Medical Laboratory Diagnostics – Fahrenheit Biobank BBMRI.pl, Medical University of Gdansk, Gdansk, Poland
- *Correspondence: Karolina Kaźmierczak-Siedlecka,
| | - Karol Połom
- Department of Surgical Oncology, Medical University of Gdansk, Gdansk, Poland
| | - Leszek Kalinowski
- Department of Medical Laboratory Diagnostics – Fahrenheit Biobank BBMRI.pl, Medical University of Gdansk, Gdansk, Poland
- BioTechMed Centre, Department of Mechanics of Materials and Structures, University of Technology, Gdansk, Poland
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Sun L, Zhu Z, Jia X, Ying X, Wang B, Wang P, Zhang S, Yu J. The difference of human gut microbiome in colorectal cancer with and without metastases. Front Oncol 2022; 12:982744. [PMID: 36387258 PMCID: PMC9665410 DOI: 10.3389/fonc.2022.982744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/30/2022] [Indexed: 01/24/2023] Open
Abstract
Metastasis of colorectal cancer is deemed to be closely related to the changes in the human gut microbiome. The purpose of our study is to distinguish the differences in gut microbiota between colorectal cancer with and without metastases. Firstly, this study recruited colorectal cancer patients who met the established inclusion and exclusion criteria in the Oncology Department of Zhejiang Hospital of Traditional Chinese Medicine from February 2019 to June 2019. Fresh stool samples from healthy volunteers, non-metastatic patients, and metastatic patients were collected for 16S rRNA gene sequencing, to analyze the diversity and abundance of intestinal microorganisms in each group. The results showed that the microbial composition of the control group was more aplenty than the experimental group, while the difference also happened in the Tumor and the metastases group. At the phylum level, the abundance of Bacteroidetes significantly declined in the Tumor and the metastases group, compared with the control group. At the class level, Bacilli increased in experimental groups, while its abundance in the Tumor group was significantly higher than that in the metastases group. At the order level, the Tumor group had the highest abundance of Lactobacillales, followed by the metastases group and the control group had the lowest abundance. Overall, our study showed that the composition of the flora changed with the occurrence of metastasis in colorectal cancer. Therefore, the analysis of gut microbiota can serve as a supplement biological basis for the diagnosis and treatment of metastatic colorectal cancer which may offer the potential to develop non-invasive diagnostic tests.
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Affiliation(s)
- Leitao Sun
- Department of Medical Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang, China
| | - Zhenzheng Zhu
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Xinru Jia
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Xiangchang Ying
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Binbin Wang
- Department of Medical Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang, China
| | - Peipei Wang
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China,*Correspondence: Jieru Yu, ; Shuo Zhang, ; Peipei Wang,
| | - Shuo Zhang
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (Xinhua Hospital of Zhejiang Province), Hangzhou, Zhejiang, China,*Correspondence: Jieru Yu, ; Shuo Zhang, ; Peipei Wang,
| | - Jieru Yu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China,*Correspondence: Jieru Yu, ; Shuo Zhang, ; Peipei Wang,
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30
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Gut Microbiota and Therapy in Metastatic Melanoma: Focus on MAPK Pathway Inhibition. Int J Mol Sci 2022; 23:ijms231911990. [PMID: 36233289 PMCID: PMC9569448 DOI: 10.3390/ijms231911990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 11/06/2022] Open
Abstract
Gut microbiome (GM) and its either pro-tumorigenic or anti-tumorigenic role is intriguing and constitutes an evolving landscape in translational oncology. It has been suggested that these microorganisms may be involved in carcinogenesis, cancer treatment response and resistance, as well as predisposition to adverse effects. In melanoma patients, one of the most immunogenic cancers, immune checkpoint inhibitors (ICI) and MAPK-targeted therapy—BRAF/MEK inhibitors—have revolutionized prognosis, and the study of the microbiome as a modulating factor is thus appealing. Although BRAF/MEK inhibitors constitute one of the main backbones of treatment in melanoma, little is known about their impact on GM and how this might correlate with immune re-induction. On the contrary, ICI and their relationship to GM has become an interesting field of research due to the already-known impact of immunotherapy in modulating the immune system. Immune reprogramming in the tumor microenvironment has been established as one of the main targets of microbiome, since it can induce immunosuppressive phenotypes, promote inflammatory responses or conduct anti-tumor responses. As a result, ongoing clinical trials are evaluating the role of fecal microbiota transplant (FMT), as well as the impact of using dietary supplements, antibiotics and probiotics in the prediction of response to therapy. In this review, we provide an overview of GM’s link to cancer, its relationship with the immune system and how this may impact response to treatments in melanoma patients. We also discuss insights about novel therapeutic approaches including FMT, changes in diet and use of probiotics, prebiotics and symbiotics. Finally, we hypothesize on the possible pathways through which GM may impact anti-tumor efficacy in melanoma patients treated with targeted therapy, an appealing subject of which little is known.
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31
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Kim EH, Nam S, Park CH, Kim Y, Lee M, Ahn JB, Shin SJ, Park YR, Jung HI, Kim BI, Jung I, Kim HS. Periodontal disease and cancer risk: A nationwide population-based cohort study. Front Oncol 2022; 12:901098. [PMID: 36081548 PMCID: PMC9445882 DOI: 10.3389/fonc.2022.901098] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 08/01/2022] [Indexed: 11/24/2022] Open
Abstract
Background Although emerging evidence suggests that periodontitis might increase the risk of cancer, comorbidity and lifestyle behaviors, such as smoking and body mass index (BMI), may have confounded this reported association. This study aimed to investigate whether chronic periodontitis is associated with cancer risk using a large, nationwide database. Methods We conducted a population-based, retrospective cohort study using data from the Korean National Health Insurance Cohort Database obtained between January 2003 and December 2015. We included 713,201 individuals without a history of cancer who were followed up to 10 years. Confounding factors included demographic factors (age, sex, income, and residential area), lifestyle behaviors (smoking history and BMI), and comorbidities, such as hypertension, diabetes, heart failure, and pulmonary disease, using the Charlson Comorbidity Index. Multivariable Cox regression analysis was applied to estimate the adjusted hazard ratio (aHR) for cancer risk. Results Of the 713,201 participants, 53,075 had periodontitis and were placed in the periodontitis group; the remaining 660,126 individuals were included as the control group. Overall, the cumulative incidence of cancer in the periodontitis group was 2.2 times higher than that in the control group. The periodontitis group had an increased risk of total cancer compared to the control group after adjusting for age, sex, comorbidities, BMI, and smoking history (aHR, 1.129; 95% confidence interval [CI], 1.089-1.171; P<0.0001). When examining specific cancer types, significant associations were also observed between periodontitis and stomach cancer (aHR, 1.136; 95% CI, 1.042-1.239; P=0.0037), colon cancer (aHR, 1.129; 95% CI, 1.029-1.239; P=0.0105), lung cancer (aHR, 1.127; 95% CI, 1.008-1.260; P=0.0353), bladder cancer (aHR, 1.307; 95% CI, 1.071-1.595; P=0.0085), thyroid cancer (aHR, 1.191; 95% CI, 1.085-1.308; P=0.0002), and leukemia (aHR, 1.394; 95% CI, 1.039-1.872; P=0.0270). There was no significant association between the development of secondary malignancy and periodontitis in cancer survivors who were alive 5 years after they were diagnosed with the primary malignancy. Conclusions Periodontal disease, including periodontitis, was associated with increased risk of cancer, which persisted after controlling for confounding factors. Further prospective research is warranted to establish a causal relationship.
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Affiliation(s)
- Eun Hwa Kim
- Biostatistics Collaboration Unit, Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, South Korea
| | - Sunghyun Nam
- College of Medicine, Yonsei University, Seoul, South Korea
| | - Chung Hyun Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Yitak Kim
- College of Medicine, Yonsei University, Seoul, South Korea
| | - Myeongjee Lee
- Biostatistics Collaboration Unit, Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, South Korea
| | - Joong Bae Ahn
- Yonsei Cancer Center, Division of Medical Oncology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Sang Joon Shin
- Yonsei Cancer Center, Division of Medical Oncology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Yu Rang Park
- College of Medicine, Yonsei University, Seoul, South Korea
| | - Hoi In Jung
- Department of Preventive Dentistry and Public Oral Health, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Baek-Il Kim
- Department of Preventive Dentistry and Public Oral Health, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Inkyung Jung
- Division of Biostatistics, Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, South Korea
- *Correspondence: Han Sang Kim, ; Inkyung Jung,
| | - Han Sang Kim
- Yonsei Cancer Center, Division of Medical Oncology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea
- Institute for Innovation in Digital Healthcare (IIDH), Severance Hospital, Seoul, South Korea
- *Correspondence: Han Sang Kim, ; Inkyung Jung,
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Kabwe M, Dashper S, Tucci J. The Microbiome in Pancreatic Cancer-Implications for Diagnosis and Precision Bacteriophage Therapy for This Low Survival Disease. Front Cell Infect Microbiol 2022; 12:871293. [PMID: 35663462 PMCID: PMC9160434 DOI: 10.3389/fcimb.2022.871293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 04/19/2022] [Indexed: 11/13/2022] Open
Abstract
While the mortality rates for many cancers have decreased due to improved detection and treatments, that of pancreatic cancer remains stubbornly high. The microbiome is an important factor in the progression of many cancers. Greater understanding of the microbiome in pancreatic cancer patients, as well as its manipulation, may assist in diagnosis and treatment of this disease. In this report we reviewed studies that compared microbiome changes in pancreatic cancer patients and non-cancer patients. We then identified which bacterial genera were most increased in relative abundance across the oral, pancreatic, duodenal, and faecal tissue microbiomes. In light of these findings, we discuss the potential for utilising these bacteria as diagnostic biomarkers, as well as their potential control using precision targeting with bacteriophages, in instances where a causal oncogenic link is made.
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Affiliation(s)
- Mwila Kabwe
- Department of Rural Clinical Sciences, La Trobe Rural Health School, La Trobe University, Bendigo, VIC, Australia
- La Trobe Institute for Molecular Science, La Trobe University, Bendigo, VIC, Australia
| | - Stuart Dashper
- Melbourne Dental School, University of Melbourne, Melbourne, VIC, Australia
| | - Joseph Tucci
- Department of Rural Clinical Sciences, La Trobe Rural Health School, La Trobe University, Bendigo, VIC, Australia
- La Trobe Institute for Molecular Science, La Trobe University, Bendigo, VIC, Australia
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Jin S, Wetzel D, Schirmer M. Deciphering mechanisms and implications of bacterial translocation in human health and disease. Curr Opin Microbiol 2022; 67:102147. [PMID: 35461008 DOI: 10.1016/j.mib.2022.102147] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 02/28/2022] [Accepted: 03/03/2022] [Indexed: 12/12/2022]
Abstract
Significant increases in potential microbial translocation, especially along the oral-gut axis, have been identified in many immune-related and inflammatory diseases, such as inflammatory bowel disease, colorectal cancer, rheumatoid arthritis, and liver cirrhosis, for which we currently have no cure or long-term treatment options. Recent advances in computational and experimental omics approaches now enable strain tracking, functional profiling, and strain isolation in unprecedented detail, which has the potential to elucidate the causes and consequences of microbial translocation. In this review, we discuss current evidence for the detection of bacterial translocation, examine different translocation axes with a primary focus on the oral-gut axis, and outline currently known translocation mechanisms and how they adversely affect the host in disease. Finally, we conclude with an overview of state-of-the-art computational and experimental tools for strain tracking and highlight the required next steps to elucidate the role of bacterial translocation in human health.
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Affiliation(s)
- Shen Jin
- ZIEL - Institute for Food and Health, Technical University of Munich, Gregor-Mendel-Str. 2, 85354 Freising, Germany
| | - Daniela Wetzel
- ZIEL - Institute for Food and Health, Technical University of Munich, Gregor-Mendel-Str. 2, 85354 Freising, Germany
| | - Melanie Schirmer
- ZIEL - Institute for Food and Health, Technical University of Munich, Gregor-Mendel-Str. 2, 85354 Freising, Germany.
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Oral microbiota in human systematic diseases. Int J Oral Sci 2022; 14:14. [PMID: 35236828 PMCID: PMC8891310 DOI: 10.1038/s41368-022-00163-7] [Citation(s) in RCA: 136] [Impact Index Per Article: 68.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 01/06/2022] [Accepted: 01/09/2022] [Indexed: 02/07/2023] Open
Abstract
Oral bacteria directly affect the disease status of dental caries and periodontal diseases. The dynamic oral microbiota cooperates with the host to reflect the information and status of immunity and metabolism through two-way communication along the oral cavity and the systemic organs. The oral cavity is one of the most important interaction windows between the human body and the environment. The microenvironment at different sites in the oral cavity has different microbial compositions and is regulated by complex signaling, hosts, and external environmental factors. These processes may affect or reflect human health because certain health states seem to be related to the composition of oral bacteria, and the destruction of the microbial community is related to systemic diseases. In this review, we discussed emerging and exciting evidence of complex and important connections between the oral microbes and multiple human systemic diseases, and the possible contribution of the oral microorganisms to systemic diseases. This review aims to enhance the interest to oral microbes on the whole human body, and also improve clinician’s understanding of the role of oral microbes in systemic diseases. Microbial research in dentistry potentially enhances our knowledge of the pathogenic mechanisms of oral diseases, and at the same time, continuous advances in this frontier field may lead to a tangible impact on human health.
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35
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Bennedsen ALB, Furbo S, Bjarnsholt T, Raskov H, Gögenur I, Kvich L. The gut microbiota can orchestrate the signaling pathways in colorectal cancer. APMIS 2022; 130:121-139. [PMID: 35007370 DOI: 10.1111/apm.13206] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/04/2022] [Indexed: 12/14/2022]
Abstract
Current evidence suggests that bacteria contribute to the development of certain cancers, such as colorectal cancer (CRC), partly by stimulating chronic inflammation. However, little is known about the bacterial impact on molecular pathways in CRC. Recent studies have demonstrated how specific bacteria can influence the major CRC-related pathways, i.e., Wnt, PI3K-Akt, MAPK, TGF-β, EGFR, mTOR, and p53. In order to advance the current understanding and facilitate the choice of pathways to investigate, we have systematically collected and summarized the current knowledge within bacterial altered major pathways in CRC. Several pro-tumorigenic and anti-tumorigenic bacterial species and their respective metabolites interfere with the major signaling pathways addressed in this review. Not surprisingly, some of these studies investigated known CRC drivers, such as Escherichia coli, Fusobacterium nucleatum, and Bacteroides fragilis. Interestingly, some metabolites produced by bacterial species typically considered pathogenic, e.g., Vibrio cholera, displayed anti-tumorigenic activities, emphasizing the caution needed when classifying healthy and unhealthy microorganisms. The results collectively emphasize the complexity of the relationship between the microbiota and the tumorigenesis of CRC, and future studies should verify these findings in more realistic models, such as organoids, which constitute a promising platform. Moreover, future trials should investigate the clinical potential of preventive modulation of the gut microbiota regarding CRC development.
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Affiliation(s)
- Astrid L B Bennedsen
- Department of Surgery, Center for Surgical Science, Zealand University Hospital, Koege, Denmark
| | - Sara Furbo
- Department of Surgery, Center for Surgical Science, Zealand University Hospital, Koege, Denmark
| | - Thomas Bjarnsholt
- Department of Immunology and Microbiology, Costerton Biofilm Center, University of Copenhagen, Copenhagen, Denmark.,Department of Clinical Microbiology, Rigshospitalet, Copenhagen, Denmark
| | - Hans Raskov
- Department of Surgery, Center for Surgical Science, Zealand University Hospital, Koege, Denmark
| | - Ismail Gögenur
- Department of Surgery, Center for Surgical Science, Zealand University Hospital, Koege, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Lasse Kvich
- Department of Surgery, Center for Surgical Science, Zealand University Hospital, Koege, Denmark.,Department of Immunology and Microbiology, Costerton Biofilm Center, University of Copenhagen, Copenhagen, Denmark
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36
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Yu TC, Zhou YL, Fang JY. Oral pathogen in the pathogenesis of colorectal cancer. J Gastroenterol Hepatol 2022; 37:273-279. [PMID: 34837266 DOI: 10.1111/jgh.15743] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/09/2021] [Accepted: 11/09/2021] [Indexed: 12/13/2022]
Abstract
The human body contains more than 100 trillion microorganisms, including the oral cavity, the skin, and the gastrointestinal tract. After the gastrointestinal tract, the oral cavity harbors one of the most diverse microbial communities within the human body and harbors more than 770 species of bacteria. The composition of the oral and gut microbiomes is quite different, but there may be a microbiological link between the two mucosal sites during the course of disease. More studies indicate that oral bacteria can disseminate to the distal gut via enteral or hematogenous routes. This is mostly obvious in periodontitis, where specific bacteria, such as Fusobacterium nucleatum and Porphyromonas gingivalis, show this pathogenic feature. The translocation of oral microbes to the gut may give rise to a variety of gastrointestinal diseases, including colorectal cancer. However, the precise role that oral microbe play in colorectal cancer has not been fully illustrated. Here, we summarize the current researches on possible pathways of ectopic gut colonization by oral bacteria and their possible contribution to the pathogenesis of colorectal cancer. Understanding the correlation of the oral-to-gut microbial axis in the pathogenesis of colorectal cancer will contribute to precise diagnosis and effective treatment.
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Affiliation(s)
- Ta-Chung Yu
- Division of Gastroenterology and Hepatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai, China
| | - Yi-Lu Zhou
- Division of Gastroenterology and Hepatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai, China
| | - Jing-Yuan Fang
- Division of Gastroenterology and Hepatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai, China
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37
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Molecular Mechanisms Leading from Periodontal Disease to Cancer. Int J Mol Sci 2022; 23:ijms23020970. [PMID: 35055157 PMCID: PMC8778447 DOI: 10.3390/ijms23020970] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/07/2022] [Accepted: 01/14/2022] [Indexed: 12/12/2022] Open
Abstract
Periodontitis is prevalent in half of the adult population and raises critical health concerns as it has been recently associated with an increased risk of cancer. While information about the topic remains somewhat scarce, a deeper understanding of the underlying mechanistic pathways promoting neoplasia in periodontitis patients is of fundamental importance. This manuscript presents the literature as well as a panel of tables and figures on the molecular mechanisms of Porphyromonas gingivalis and Fusobacterium nucleatum, two main oral pathogens in periodontitis pathology, involved in instigating tumorigenesis. We also present evidence for potential links between the RANKL–RANK signaling axis as well as circulating cytokines/leukocytes and carcinogenesis. Due to the nonconclusive data associating periodontitis and cancer reported in the case and cohort studies, we examine clinical trials relevant to the topic and summarize their outcome.
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Mohammadi M, Mirzaei H, Motallebi M. The role of anaerobic bacteria in the development and prevention of colorectal cancer: A review study. Anaerobe 2021; 73:102501. [PMID: 34906686 DOI: 10.1016/j.anaerobe.2021.102501] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/15/2021] [Accepted: 12/07/2021] [Indexed: 02/07/2023]
Abstract
Colorectal cancer (CRC) is the third most frequently diagnosed cancer in both males and females in the Unites States. Colonoscopy is considered a safe method for screening this disorder; however, it can be challenging for patients. As research on microbiota, especially anaerobic microbiota, has expanded substantially, new links have been determined between anaerobic bacteria and CRC progression. These associations can be useful in screening CRC in the near future. This review discusses current research investigating the presence of anaerobic bacteria, including Bacteroides fragilis, Peptostreptococcus anaerobius, Clostridium septicum, Porphyromonas gingivalis, Fusobacterium nucleatum, and Parvimonas micra in CRC and presents an overview about their mechanisms of action. We also discuss the current anaerobic probiotics used for the treatment and prevention of CRC.
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Affiliation(s)
- Mehrdad Mohammadi
- Department of Immunology and Microbiology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Mitra Motallebi
- Department of Immunology and Microbiology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran; Infectious Diseases Research Center, Kashan University of Medical Sciences, Kashan, Iran.
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Fu MM, Chien WC, Chung CH, Lee WC, Tu HP, Fu E. Is periodontitis a risk factor of benign or malignant colorectal tumor? A population-based cohort study. J Periodontal Res 2021; 57:284-293. [PMID: 34854493 DOI: 10.1111/jre.12955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/07/2021] [Accepted: 11/08/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To examine the risk of developing benign or malignant colorectal tumors in patients with periodontitis within 15 years using Taiwan's National Health Insurance Database. BACKGROUND Studies have shown that colorectal carcinoma often develops under inflammatory conditions and changes of microbiota in the gut. Recently, a link between Fusobacterium nucleatum, a periodontal pathogen, and colorectal carcinoma has been proposed. However, whether periodontitis is a risk of developing colorectal tumor remains uncertain. METHODS In total, 35 124 participants were enrolled from 2000 to 2015 to examine the development risk of benign colorectal tumors, including 11 708 patients with periodontitis who received therapy (group 1), 11 708 patients with periodontitis not receiving periodontal treatment (group 2), and 11 708 non-periodontitis controls after matching for gender, age, and index year. To examine the risk of developing colorectal malignancy, 11 720 participants were assigned to each of the three groups. Cox proportional hazards model and Kaplan-Meier methods were used to compare the risks. Sensitivity analysis was performed, excluding the diagnoses during the first 1 or 5 years. RESULTS After the follow-up, 177, 154, and 63 participants in group 1, group 2, and control group had benign colorectal tumors. Patients with periodontitis tended to be associated with a greater rate of having a benign colorectal tumor. The adjusted hazard ratios (aHRs) were 3.77 (95% confidence interval [CI] 2.01-4.82, p < .001) and 2.85 (95% CI 1.62-3.74, p < .001) for groups 1 and 2, respectively. Regarding the risk of malignant colorectal tumor, 20, 18, and 14 participants who developed malignant tumors were included in group 1, group 2, and control group; however, no significant increase in malignancy was observed in periodontitis groups (aHR1.92, 95% CI 0.74-2.36, p = .482; aHR 1.50, 95% CI 0.68-1.97, p = .529, for the two periodontitis groups, respectively). CONCLUSIONS The results of this study suggest that patients with periodontitis may have an increased risk of developing benign, but not malignant, colorectal tumors.
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Affiliation(s)
- Martin M Fu
- Department of Periodontology, School of Dentistry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Wu-Chien Chien
- Department of Medical Research, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,School of Public Health, National Defense Medical Center, Taipei, Taiwan.,Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Chi-Hsiang Chung
- Department of Medical Research, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,School of Public Health, National Defense Medical Center, Taipei, Taiwan
| | - Wei-Cheng Lee
- Department of Orthodontics, School of Dentistry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Hsiao-Pei Tu
- Department of Oral hygiene, Hsin-Sheng Junior College of Medical Care and Management, Taoyuan City, Taiwan
| | - Earl Fu
- Department of Dentistry, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
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40
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Smorodin EP. Prospects and Challenges of the Study of Anti-Glycan Antibodies and Microbiota for the Monitoring of Gastrointestinal Cancer. Int J Mol Sci 2021; 22:ijms222111608. [PMID: 34769037 PMCID: PMC8584091 DOI: 10.3390/ijms222111608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/24/2021] [Accepted: 10/25/2021] [Indexed: 11/26/2022] Open
Abstract
Over the past decades, a large amount of data has been accumulated in various subfields of glycobiology. However, much clinically relevant data and many tools are still not widely used in medicine. Synthetic glycoconjugates with the known structure of glycans are an accurate tool for the study of glycan-binding proteins. We used polyacrylamide glycoconjugates (PGs) including PGs with tumour-associated glycans (TAGs) in immunoassays to assess the prognostic potential of the serum level of anti-glycan antibodies (AG Abs) in gastrointestinal cancer patients and found an association of AG Abs with survival. The specificity of affinity-isolated AG Abs was investigated using synthetic and natural glycoconjugates. AG Abs showed mainly a low specificity to tumour-associated and tumour-derived mucins; therefore, the protective role of the examined circulating AG Abs against cancer remains a challenge. In this review, our findings are analysed and discussed in the context of the contribution of bacteria to the AG Abs stimulus and cancer progression. Examples of the influence of pathogenic bacteria colonising tumours on cancer progression and patient survival through mechanisms of interaction with tumours and dysregulated immune response are considered. The possibilities and problems of the integrative study of AG Abs and the microbiome using high-performance technologies are discussed.
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Affiliation(s)
- Eugeniy P Smorodin
- Department of Virology and Immunology, National Institute for Health Development, 11619 Tallinn, Estonia
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41
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Wang L, Li X, Song Y, Zhang L, Ye L, Zhou X, Song D, Huang D. NELL1 Augments Osteogenesis and Inhibits Inflammation of Human Periodontal Ligament Stem Cells Induced by BMP9. J Periodontol 2021; 93:977-987. [PMID: 34647317 DOI: 10.1002/jper.20-0517] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/24/2021] [Accepted: 09/26/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Periodontitis could lead to periodontal destruction such as the loss of alveolar bone. The issue that how to achieve the regeneration of alveolar bone and periodontal tissues under the inflammatory environment needs to be solved urgently. BMP9 is one of the most potent osteo-inductive BMPs and induces osteogenic differentiation of mesenchymal stem cells (MSCs). The aim of this study is to explore the possible effect of BMP9 on the osteogenic differentiation of inflammatory periodontal ligament stem cells (PDLSCs). METHODS Human PDLSCs were cultured in osteo-inductive medium with 1μg/mL lipopolysaccharide Porphyromonas gingivitis (LPS-PG). Adenoviral vector expressing system was used to overexpress target genes. In vitro expression of osteogenic markers was assessed by quantitative reverse transcription PCR, western blotting, alkaline phosphatase assay, and alizarin red staining. Subcutaneous implantation nude mice models were used to evaluate the effects of BMP9 on PDLSCs in vivo. Micro-CT, H&E staining, and trichrome staining were performed to assess ectopic bone formation. RESULTS In the LPS-PG induced inflammatory environment, BMP9 promoted osteogenic differentiation of PDLSCs, but upregulated the expression of inflammatory markers (P>0.05); NELL1 downregulated the expression of inflammation genes in PDLSCs induced by BMP9, while augmenting BMP9 induced osteogenesis of the cells both in vitro and in vivo. In the above process, the MAPK/p38/ERK signaling pathway was triggered by NELL1. CONCLUSION The combination use of BMP9 and NELL1 might have the potential to promote the regeneration of alveolar bone in periodontitis. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Liu Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Xiangfen Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Yao Song
- State Key Laboratory of Oral Diseases & National Clinical Research Center of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Lan Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Ling Ye
- State Key Laboratory of Oral Diseases & National Clinical Research Center of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases & National Clinical Research Center of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Dongzhe Song
- State Key Laboratory of Oral Diseases & National Clinical Research Center of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.,Department of Operative Dentistry and Endodontics West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Dingming Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Center of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.,Department of Operative Dentistry and Endodontics West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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Gao R, Zhu Y, Kong C, Xia K, Li H, Zhu Y, Zhang X, Liu Y, Zhong H, Yang R, Chen C, Qin N, Qin H. Alterations, Interactions, and Diagnostic Potential of Gut Bacteria and Viruses in Colorectal Cancer. Front Cell Infect Microbiol 2021; 11:657867. [PMID: 34307189 PMCID: PMC8294192 DOI: 10.3389/fcimb.2021.657867] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 05/18/2021] [Indexed: 12/11/2022] Open
Abstract
Gut microbiome alteration was closely associated with colorectal cancer (CRC). Previous studies had demonstrated the bacteria composition changes but lacked virome profiles, trans-kindom interactions, and reliable diagnostic model explorations in CRC. Hence, we performed metagenomic sequencing to investigate the gut microbiome and microbial interactions in adenoma and CRC patients. We found the decreased microbial diversity in CRC and revealed the taxonomic alterations of bacteria and viruses were highly associated with CRC at the species level. The relative abundance of oral-derived species, such as Fusobacterium nucleatum, Fusobacterium hwasookii, Porphyromonas gingivalis, and Bacteroides fragilis, increased. At the same time, butyrate-producing and anti-inflammatory microbes decreased in adenoma and CRC by non-parametric Kruskal-Wallis test. Despite that, the relative abundance of Escherichia viruses and Salmonella viruses increased, whereas some phages, including Enterobacteria phages and Uncultured crAssphage, decreased along with CRC development. Gut bacteria was negatively associated with viruses in CRC and healthy control by correlation analysis (P=0.017 and 0.002, respectively). Viruses were much more dynamic than the bacteria as the disease progressed, and the altered microbial interactions were distinctively stage-dependent. The degree centrality of microbial interactions decreased while closeness centrality increased along with the adenoma to cancer development. Uncultured crAssphage was the key bacteriophage that enriched in healthy controls and positively associated with butyrate-producing bacteria. Diagnostic tests based on bacteria by random forest confirmed in independent cohorts showed better performance than viruses for CRC. In conclusion, our study revealed the novel CRC-associated bacteria and viruses that exhibited specific differences and intensive microbial correlations, which provided a reliable diagnostic panel for CRC.
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Affiliation(s)
- Renyuan Gao
- Diagnostic and Treatment Center for Refractory Diseases of Abdomen Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute for Intestinal Diseases, Tongji University School of Medicine, Shanghai, China
| | - Yefei Zhu
- Institute for Intestinal Diseases, Tongji University School of Medicine, Shanghai, China.,Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Cheng Kong
- Institute for Intestinal Diseases, Tongji University School of Medicine, Shanghai, China.,Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Kai Xia
- Diagnostic and Treatment Center for Refractory Diseases of Abdomen Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute for Intestinal Diseases, Tongji University School of Medicine, Shanghai, China
| | - Hao Li
- Institute for Intestinal Diseases, Tongji University School of Medicine, Shanghai, China.,Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yin Zhu
- Institute for Intestinal Diseases, Tongji University School of Medicine, Shanghai, China.,Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaohui Zhang
- Institute for Intestinal Diseases, Tongji University School of Medicine, Shanghai, China.,Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yongqiang Liu
- Institute for Intestinal Diseases, Tongji University School of Medicine, Shanghai, China.,Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hui Zhong
- Department of Pediatrics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Rong Yang
- Department of Pediatrics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chunqiu Chen
- Diagnostic and Treatment Center for Refractory Diseases of Abdomen Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute for Intestinal Diseases, Tongji University School of Medicine, Shanghai, China
| | - Nan Qin
- Institute for Intestinal Diseases, Tongji University School of Medicine, Shanghai, China.,Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Huanlong Qin
- Institute for Intestinal Diseases, Tongji University School of Medicine, Shanghai, China.,Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
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Park SY, Hwang BO, Lim M, Ok SH, Lee SK, Chun KS, Park KK, Hu Y, Chung WY, Song NY. Oral-Gut Microbiome Axis in Gastrointestinal Disease and Cancer. Cancers (Basel) 2021; 13:2124. [PMID: 33924899 PMCID: PMC8125773 DOI: 10.3390/cancers13092124] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/05/2021] [Accepted: 03/09/2021] [Indexed: 02/07/2023] Open
Abstract
It is well-known that microbiota dysbiosis is closely associated with numerous diseases in the human body. The oral cavity and gut are the two largest microbial habitats, playing a major role in microbiome-associated diseases. Even though the oral cavity and gut are continuous regions connected through the gastrointestinal tract, the oral and gut microbiome profiles are well-segregated due to the oral-gut barrier. However, the oral microbiota can translocate to the intestinal mucosa in conditions of the oral-gut barrier dysfunction. Inversely, the gut-to-oral microbial transmission occurs as well in inter- and intrapersonal manners. Recently, it has been reported that oral and gut microbiomes interdependently regulate physiological functions and pathological processes. Oral-to-gut and gut-to-oral microbial transmissions can shape and/or reshape the microbial ecosystem in both habitats, eventually modulating pathogenesis of disease. However, the oral-gut microbial interaction in pathogenesis has been underappreciated to date. Here, we will highlight the oral-gut microbiome crosstalk and its implications in the pathogenesis of the gastrointestinal disease and cancer. Better understanding the role of the oral-gut microbiome axis in pathogenesis will be advantageous for precise diagnosis/prognosis and effective treatment.
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Affiliation(s)
- Se-Young Park
- Department of Applied Life Science, The Graduate School, Yonsei University, and BK21 FOUR Project, Yonsei University College of Dentistry, Seoul 03722, Korea; (S.-Y.P.); (B.-O.H.); (S.-H.O.)
| | - Byeong-Oh Hwang
- Department of Applied Life Science, The Graduate School, Yonsei University, and BK21 FOUR Project, Yonsei University College of Dentistry, Seoul 03722, Korea; (S.-Y.P.); (B.-O.H.); (S.-H.O.)
| | - Mihwa Lim
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul 03722, Korea; (M.L.); (S.-K.L.); (K.-K.P.)
| | - Seung-Ho Ok
- Department of Applied Life Science, The Graduate School, Yonsei University, and BK21 FOUR Project, Yonsei University College of Dentistry, Seoul 03722, Korea; (S.-Y.P.); (B.-O.H.); (S.-H.O.)
| | - Sun-Kyoung Lee
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul 03722, Korea; (M.L.); (S.-K.L.); (K.-K.P.)
| | - Kyung-Soo Chun
- College of Pharmacy, Keimyung University, Daegu 42601, Korea;
| | - Kwang-Kyun Park
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul 03722, Korea; (M.L.); (S.-K.L.); (K.-K.P.)
| | - Yinling Hu
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702, USA;
| | - Won-Yoon Chung
- Department of Oral Biology, Oral Cancer Research Institute, and BK21 FOUR Project, Yonsei University College of Dentistry, Seoul 03722, Korea;
| | - Na-Young Song
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul 03722, Korea; (M.L.); (S.-K.L.); (K.-K.P.)
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Oral–Gut Microbiome Axis in Gastrointestinal Disease and Cancer. Cancers (Basel) 2021. [DOI: 10.3390/cancers13071748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
It is well-known that microbiota dysbiosis is closely associated with numerous diseases in the human body. The oral cavity and gut are the two largest microbial habitats, playing a major role in microbiome-associated diseases. Even though the oral cavity and gut are continuous regions connected through the gastrointestinal tract, the oral and gut microbiome profiles are well-segregated due to the oral–gut barrier. However, the oral microbiota can translocate to the intestinal mucosa in conditions of the oral–gut barrier dysfunction. Inversely, the gut-to-oral microbial transmission occurs as well in inter- and intrapersonal manners. Recently, it has been reported that oral and gut microbiomes interdependently regulate physiological functions and pathological processes. Oral-to-gut and gut-to-oral microbial transmissions can shape and/or reshape the microbial ecosystem in both habitats, eventually modulating pathogenesis of disease. However, the oral–gut microbial interaction in pathogenesis has been underappreciated to date. Here, we will highlight the oral–gut microbiome crosstalk and its implications in the pathogenesis of the gastrointestinal disease and cancer. Better understanding the role of the oral–gut microbiome axis in pathogenesis will be advantageous for precise diagnosis/prognosis and effective treatment.
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Wang X, Jia Y, Wen L, Mu W, Wu X, Liu T, Liu X, Fang J, Luan Y, Chen P, Gao J, Nguyen KA, Cui J, Zeng G, Lan P, Chen Q, Cheng B, Wang Z. Porphyromonas gingivalis Promotes Colorectal Carcinoma by Activating the Hematopoietic NLRP3 Inflammasome. Cancer Res 2021; 81:2745-2759. [PMID: 34003774 DOI: 10.1158/0008-5472.can-20-3827] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 02/11/2021] [Accepted: 03/16/2021] [Indexed: 11/16/2022]
Abstract
Porphyromonas gingivalis (P. gingivalis) is a keystone periodontal pathogen associated with various digestive cancers. However, whether P. gingivalis can promote colorectal cancer and the underlying mechanism associated with such promotion remains unclear. In this study, we found that P. gingivalis was enriched in human feces and tissue samples from patients with colorectal cancer compared with those from patients with colorectal adenoma or healthy subjects. Cohort studies demonstrated that P. gingivalis infection was associated with poor prognosis in colorectal cancer. P. gingivalis increased tumor counts and tumor volume in the ApcMin/+ mouse model and increased tumor growth in orthotopic rectal and subcutaneous carcinoma models. Furthermore, orthotopic tumors from mice exposed to P. gingivalis exhibited tumor-infiltrating myeloid cell recruitment and a proinflammatory signature. P. gingivalis promoted colorectal cancer via NLRP3 inflammasome activation in vitro and in vivo. NLRP3 chimeric mice harboring orthotopic tumors showed that the effect of NLRP3 on P. gingivalis pathogenesis was mediated by hematopoietic sources. Collectively, these data suggest that P. gingivalis contributes to colorectal cancer neoplasia progression by activating the hematopoietic NLRP3 inflammasome. SIGNIFICANCE: This study demonstrates that the periodontal pathogen P. gingivalis can promote colorectal tumorigenesis by recruiting myeloid cells and creating a proinflammatory tumor microenvironment. GRAPHICAL ABSTRACT: http://cancerres.aacrjournals.org/content/canres/81/10/2745/F1.large.jpg.
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Affiliation(s)
- Xi Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Yiqun Jia
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China.,Stomatology Center, Shenzhen People's Hospital, the Second Clinical Medical College of Jinan University, the First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China
| | - Liling Wen
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Wenxin Mu
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xianrui Wu
- Department of Colorectal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Tao Liu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xiangqi Liu
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Juan Fang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Yizhao Luan
- State Key Laboratory of Ophthalmology, Guangdong Provincial Key Lab of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Ping Chen
- Department of Gastroenterology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Jinlong Gao
- Institute of Dental Research, Sydney Dental School, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Ky-Anh Nguyen
- Institute of Dental Research, Sydney Dental School, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Jun Cui
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Gucheng Zeng
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Ping Lan
- Department of Colorectal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qianming Chen
- The Affiliated Hospital of Stomatology, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Bin Cheng
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China.
| | - Zhi Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China.
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