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Ulanja MB, Asafo‐Agyei KO, Neelam V, Beutler BD, Antwi‐Amoabeng D, Governor SB, Rahman GA, Djankpa FT, Ulanja RN, Nteim GB, Mabrouk T, Amankwah M, Alese OB. Survival trends for left and right sided colon cancer using population-based SEER database: A forty-five-year analysis from 1975 to 2019. Cancer Med 2024; 13:e7145. [PMID: 38651190 PMCID: PMC11036079 DOI: 10.1002/cam4.7145] [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: 10/15/2023] [Revised: 03/13/2024] [Accepted: 03/17/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Survival differences between left-sided colon cancer (LSCC) and right-sided colon cancer (RSCC) has been previously reported with mixed results, with various study periods not accounting for other causes of mortality. PURPOSE We sought to assess the trends in colon cancer cause- specific survival (CSS) and overall survival (OS) based on sidedness. METHOD Fine-Gray competing risk and Cox models were used to analyze Surveillance, Epidemiology, and End Results (SEER) population-based cohort from 1975 to 2019. Various interval periods were identified based on the timeline of clinical adoption of modern chemotherapy (1975-1989, interval period A; 1990-2004, B; and 2005-2019, C). RESULTS Of the 227,637 patients, 50.1% were female and 46.2% were RSCC. RSCC was more common for African Americans (51.5%), older patients (age ≥65; 51.4%), females (50.4%), while LSCC was more common among Whites (53.1%; p < 0.001), younger patients (age 18-49, 64.6%; 50-64, 62.3%; p < 0.001), males (58.1%; p < 0.001). The Median CSS for LSCC and RCC were 19.3 and 16.7 years respectively for interval period A (1975-1989). Median CSS for interval periods B and C were not reached (more than half of the cohort was still living at the end of the follow-up period). Adjusted CSS was superior for LSCC versus RSCC for the most recent interval period C (HR 0.89; 0.86-0.92; p < 0.001). LSCC consistently showed superior OS for all study periods. Stage stratification showed worse CSS for localized and regional LSCC in the earlier study periods, but the risk attenuated over time. However, left sided distant disease had superior CSS per stage for all interval periods. OS was better for LSCC irrespective of stage, with gradual improvement over time. CONCLUSION LSCC was associated with superior survival compared to right sided tumors. With the adoption of modern chemotherapy regimens, prognosis between LSCC and RSCC became more divergent in favor of LSCC. Colon cancer clinical trials should strongly consider tumor sidedness as an enrollment factor.
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Affiliation(s)
- Mark B. Ulanja
- CHRISTUS Ochsner St. Patrick HospitalLake CharlesLouisianaUSA
| | | | - Vijay Neelam
- CHRISTUS Ochsner St. Patrick HospitalLake CharlesLouisianaUSA
| | - Bryce D. Beutler
- Department of Radiology, Keck School of MedicineUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | | | - Samuel B. Governor
- Saint Louis University College for Public Health and Social JusticeSaint LouisMissouriUSA
| | - Ganiyu A. Rahman
- Department of Surgery, School of Medical SciencesUniversity of Cape CoastCape CoastGhana
| | - Francis T. Djankpa
- Department of Physiology, School of Medical SciencesUniversity of Cape CoastCape CoastGhana
| | - Reginald N. Ulanja
- Department of Physiology, School of Medical SciencesUniversity of Cape CoastCape CoastGhana
| | - Grace B. Nteim
- Department of Physiology, School of Medical SciencesUniversity of Cape CoastCape CoastGhana
| | - Tarig Mabrouk
- CHRISTUS Ochsner St. Patrick HospitalLake CharlesLouisianaUSA
| | - Millicent Amankwah
- Department of Hematology Oncology, Feist‐Weiller Cancer CenterLouisiana State University Health ShreveportLouisianaUSA
| | - Olatunji B. Alese
- Department of Hematology and OncologyWinship Cancer Institute, Emory UniversityAtlantaGeorgiaUSA
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Chen Q, Ye J, Li XB, Zeng K, Zeng S. Drug resistance and influencing factors of biofilm bacteria in upper urinary calculi patients with double J stent indwelling. BMC Urol 2023; 23:165. [PMID: 37838674 PMCID: PMC10576326 DOI: 10.1186/s12894-023-01339-x] [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: 01/16/2023] [Accepted: 10/10/2023] [Indexed: 10/16/2023] Open
Abstract
OBJECTIVE To analyze the distribution and drug resistance of biofilm bacteria infected with upper urinary calculi patients with double J stent indwelling, and to explore the influencing factors of Biofilm Bacteria Infections. METHODS A total of 400 patients with upper urinary calculi who adopted double J stent inserting in our hospital from January 2019 to January 2022 were included. Urine and double J stent samples were collected, pathogen cultures were performed, and then drug sensitivity test analysis was carried out for isolates. Univariate and multivariate logistic regression analyzes were used to analyze the influencing factors of patients with double J stent associated biofilm bacteria infections. RESULTS A total of 13 strains (3.2%) of biofilm bacteria were detected in urine samples and 168 strains (42%) in double J stent samples (P < 0.05), 95 strains (23.7%) of pathogenic bacteria were separated from urine samples and 117 strains (29.2%) from double J-stent samples (P > 0.05). Escherichia coli were the most common bacteria. There was significantly higher drug resistance observed in biofilm bacteria versus urine-cultured pathogens (P < 0.05). Advanced age, long-term catheterization, inadequate water intake, hypoproteinemia, abnormal renal function, and diabetes mellitus were independent risk factors for biofilm bacteria infection associated with double J stent(P < 0.05). CONCLUSION Among the upper urinary calculi patients with double J stent indwelling, the positive rate and drug resistance of biofilm bacteria obtained from double J stent were significantly higher than that from urine. More attention should be paid to the factors that influence biofilm bacteria infections.
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Affiliation(s)
- Qian Chen
- Department of Nephrology, First People's Hospital of Zigong City, Zigong, China
| | - JunBing Ye
- Department of Urology, First People's Hospital of Zigong City, Zigong, China.
| | - Xiao Bin Li
- Department of Urology, First People's Hospital of Zigong City, Zigong, China
| | - Ke Zeng
- Department of Urology, First People's Hospital of Zigong City, Zigong, China
| | - Shiping Zeng
- Department of Urology, First People's Hospital of Zigong City, Zigong, China
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Yang D, Zhao L, Li Q, Huang L, Qin Y, Wang P, Zhu C, Yan Q. The involvement of the T6SS vgrG gene in the pathogenicity of Pseudomonas plecoglossicida. JOURNAL OF FISH DISEASES 2023; 46:1097-1108. [PMID: 37401135 DOI: 10.1111/jfd.13829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 07/05/2023]
Abstract
Pseudomonas plecoglossicida, the causative agent of white spot disease of large yellow croaker, has caused serious economic losses to the aquaculture industry. The type VI secretion system (T6SS) is a significant virulence system widely distributed among Gram-negative bacteria. VgrG, a structural and core component of T6SS, is crucial to the function of T6SS. To explore the biological profiles mediated by vgrG gene and its effects on the pathogenicity of P. plecoglossicida, the vgrG gene deletion (ΔvgrG) strain and complementary (C-ΔvgrG) strain were constructed and the differences in pathogenicity and virulence-related characteristics between different strains were analysed. The results showed that vgrG gene deletion significantly affected the virulence-related characteristics of P. plecoglossicida, including chemotaxis, adhesion, and biofilm formation. In addition, the LD50 of ΔvgrG strain was nearly 50-fold higher than that of the NZBD9 strain. Transcriptome data analysis suggested that the vgrG gene may affect the virulence of P. plecoglossicida by regulating the quorum sensing pathway to inhibit the secretion of virulence factors and affect biofilm formation. Besides, deletion of the vgrG gene may reduce bacterial pathogenicity by affecting bacterial signal transduction processes and the ability to adapt to chemotactic substances.
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Affiliation(s)
- Dou Yang
- Fisheries College, Jimei University, Xiamen, China
| | - Lingmin Zhao
- Fisheries College, Jimei University, Xiamen, China
| | - Qi Li
- Fisheries College, Jimei University, Xiamen, China
| | - Lixing Huang
- Fisheries College, Jimei University, Xiamen, China
| | - Yingxue Qin
- Fisheries College, Jimei University, Xiamen, China
| | - Pan Wang
- Key Laboratory of Aquatic Functional Feed and Environmental Regulation of Fujian Province, Fujian Dabeinong Aquatic Sci. & Tech. Co., Ltd, Zhangzhou, China
| | - Chuanzhong Zhu
- Key Laboratory of Aquatic Functional Feed and Environmental Regulation of Fujian Province, Fujian Dabeinong Aquatic Sci. & Tech. Co., Ltd, Zhangzhou, China
| | - Qingpi Yan
- Fisheries College, Jimei University, Xiamen, China
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Deng Y, Fu Y, Chua SL, Khoo BL. Biofilm Potentiates Cancer-Promoting Effects of Tumor-Associated Macrophages in a 3D Multi-Faceted Tumor Model. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205904. [PMID: 36748304 DOI: 10.1002/smll.202205904] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 01/01/2023] [Indexed: 05/11/2023]
Abstract
Components of the tumor microenvironment (TME), such as tumor-associated macrophages (TAMs), influence tumor progression. The specific polarization and phenotypic transition of TAMs in the tumor microenvironment lead to two-pronged impacts that can promote or hinder cancer development and treatment. Here, a novel microfluidic multi-faceted bladder tumor model (TAMPIEB ) is developed incorporating TAMs and cancer cells to evaluate the impact of bacterial distribution on immunomodulation within the tumor microenvironment in vivo. It is demonstrated for the first time that biofilm-induced inflammatory conditions within tumors promote the transition of macrophages from a pro-inflammatory M1-like to an anti-inflammatory/pro-tumor M2-like state. Consequently, multiple roles and mechanisms by which biofilms promote cancer by inducing pro-tumor phenotypic switch of TAMs are identified, including cancer hallmarks such as reducing susceptibility to apoptosis, enhancing cell viability, and promoting epithelial-mesenchymal transition and metastasis. Furthermore, biofilms formed by extratumoral bacteria can shield tumors from immune attack by TAMs, which can be visualized through various imaging assays in situ. The study sheds light on the underlying mechanism of biofilm-mediated inflammation on tumor progression and provides new insights into combined anti-biofilm therapy and immunotherapy strategies in clinical trials.
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Affiliation(s)
- Yanlin Deng
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Yatian Fu
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering (COCHE), Kowloon, 999077, Hong Kong
| | - Song Lin Chua
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong SAR, Kowloon, 999077, China
- State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hong Kong SAR, Kowloon, 999077, China
- Shenzhen Key Laboratory of Food Biological Safety Control, Kowloon, 999077, Hong Kong
- Research Centre for Deep Space Explorations (RCDSE), The Hong Kong Polytechnic University, Hong Kong SAR, Kowloon, 999077, China
| | - Bee Luan Khoo
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering (COCHE), Kowloon, 999077, Hong Kong
- Department of Precision Diagnostic and Therapeutic Technology, City University of Hong Kong Shenzhen-Futian Research Institute, Shenzhen, 518057, China
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Sillo TO, Beggs AD, Middleton G, Akingboye A. The Gut Microbiome, Microsatellite Status and the Response to Immunotherapy in Colorectal Cancer. Int J Mol Sci 2023; 24:ijms24065767. [PMID: 36982838 PMCID: PMC10054450 DOI: 10.3390/ijms24065767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/09/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
There is increasing evidence in a range of cancer types that the microbiome plays a direct role in modulating the anti-cancer immune response both at the gut level and systemically. Differences in the gut microbiota have been shown to correlate with differences in immunotherapy responses in a range of non-gastrointestinal tract cancers. DNA mismatch repair-deficient (dMMR) colorectal cancer (CRC) is radically different to DNA mismatch repair-proficient (pMMR) CRC in clinical phenotype and in its very good responses to immunotherapy. While this has usually been thought to be due to the high mutational burden in dMMR CRC, the gut microbiome is radically different in dMMR and pMMR CRC in terms of both composition and diversity. It is probable that differences in the gut microbiota contribute to the varied responses to immunotherapy in dMMR versus pMMR CRC. Targeting the microbiome offers a way to boost the response and increase the selection of patients who might benefit from this therapy. This paper reviews the available literature on the role of the microbiome in the response to immunotherapy in dMMR and pMMR CRC, explores the potential causal relationship and discusses future directions for study in this exciting and rapidly changing field.
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Affiliation(s)
- Toritseju O Sillo
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Andrew D Beggs
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Gary Middleton
- Institute of Immunology and Immunotherapy, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
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Ugai T, Akimoto N, Haruki K, Harrison TA, Cao Y, Qu C, Chan AT, Campbell PT, Berndt SI, Buchanan DD, Cross AJ, Diergaarde B, Gallinger SJ, Gunter MJ, Harlid S, Hidaka A, Hoffmeister M, Brenner H, Chang-Claude J, Hsu L, Jenkins MA, Lin Y, Milne RL, Moreno V, Newcomb PA, Nishihara R, Obon-Santacana M, Pai RK, Sakoda LC, Schoen RE, Slattery ML, Sun W, Amitay EL, Alwers E, Thibodeau SN, Toland AE, Van Guelpen B, Zaidi SH, Potter JD, Meyerhardt JA, Giannakis M, Song M, Nowak JA, Peters U, Phipps AI, Ogino S. Prognostic role of detailed colorectal location and tumor molecular features: analyses of 13,101 colorectal cancer patients including 2994 early-onset cases. J Gastroenterol 2023; 58:229-245. [PMID: 36648535 PMCID: PMC10203916 DOI: 10.1007/s00535-023-01955-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 01/01/2023] [Indexed: 01/18/2023]
Abstract
BACKGROUND The pathogenic effect of colorectal tumor molecular features may be influenced by several factors, including those related to microbiota, inflammation, metabolism, and epigenetics, which may change along colorectal segments. We hypothesized that the prognostic association of colon cancer location might differ by tumor molecular characteristics. METHODS Utilizing a consortium dataset of 13,101 colorectal cancer cases, including 2994 early-onset cases, we conducted survival analyses of detailed tumor location stratified by statuses of microsatellite instability (MSI), CpG island methylator phenotype (CIMP), and KRAS and BRAF oncogenic mutation. RESULTS There was a statistically significant trend for better colon cancer-specific survival in relation to tumor location from the cecum to sigmoid colon (Ptrend = 0.002), excluding the rectum. The prognostic association of colon location differed by MSI status (Pinteraction = 0.001). Non-MSI-high tumors exhibited the cecum-to-sigmoid trend for better colon cancer-specific survival [Ptrend < 0.001; multivariable hazard ratio (HR) for the sigmoid colon (vs. cecum), 0.80; 95% confidence interval (CI) 0.70-0.92], whereas MSI-high tumors demonstrated a suggestive cecum-to-sigmoid trend for worse survival (Ptrend = 0.020; the corresponding HR, 2.13; 95% CI 1.15-3.92). The prognostic association of colon tumor location also differed by CIMP status (Pinteraction = 0.003) but not significantly by age, stage, or other features. Furthermore, MSI-high status was a favorable prognostic indicator in all stages. CONCLUSIONS Both detailed colonic location and tumor molecular features need to be accounted for colon cancer prognostication to advance precision medicine. Our study indicates the important role of large-scale studies to robustly examine detailed colonic subsites in molecular oncology research.
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Affiliation(s)
- Tomotaka Ugai
- Program in MPE Molecular Pathological Epidemiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Ave., EBRC Room 404, Boston, MA, 02215, USA.
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Naohiko Akimoto
- Program in MPE Molecular Pathological Epidemiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Ave., EBRC Room 404, Boston, MA, 02215, USA
| | - Koichiro Haruki
- Program in MPE Molecular Pathological Epidemiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Ave., EBRC Room 404, Boston, MA, 02215, USA
| | - Tabitha A Harrison
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Yin Cao
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St Louis, MO, USA
- Division of Gastroenterology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
- Alvin J. Siteman Cancer Center, St Louis, MO, USA
| | - Conghui Qu
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Andrew T Chan
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Division of Gastroenterology, Massachusetts General Hospital, Boston, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Peter T Campbell
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Sonja I Berndt
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Daniel D Buchanan
- Colorectal Oncogenomics Group, Department of Clinical Pathology, The University of Melbourne, Parkville, VIC, Australia
- Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, Australia
- Genetic Medicine and Family Cancer Clinic, The Royal Melbourne Hospital, Parkville, VIC, Australia
| | - Amanda J Cross
- Department of Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, UK
| | - Brenda Diergaarde
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, and UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | - Steven J Gallinger
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
| | - Marc J Gunter
- Nutrition and Metabolism Section, International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Sophia Harlid
- Department of Radiation Sciences, Oncology Unit, Umeå University, Umeå, Sweden
| | - Akihisa Hidaka
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Michael Hoffmeister
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Division of Preventive Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- German Cancer Consortium (Deutschen Konsortium für Translationale Krebsforschung), German Cancer Research Center (Deutsches Krebsforschungszentrum), Heidelberg, Germany
| | - Jenny Chang-Claude
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Cancer Epidemiology Group, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Li Hsu
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Mark A Jenkins
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Yi Lin
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Roger L Milne
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC, Australia
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, VIC, Australia
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Victor Moreno
- Unit of Biomarkers and Susceptibility, Oncology Data Analytics Program, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029, Madrid, Spain
- Department of Clinical Sciences, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Polly A Newcomb
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Reiko Nishihara
- Program in MPE Molecular Pathological Epidemiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Ave., EBRC Room 404, Boston, MA, 02215, USA
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Mireia Obon-Santacana
- Unit of Biomarkers and Susceptibility, Oncology Data Analytics Program, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029, Madrid, Spain
| | - Rish K Pai
- Department of Laboratory Medicine and Pathology, Mayo Clinic Arizona, Scottsdale, AZ, USA
| | - Lori C Sakoda
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
| | - Robert E Schoen
- Department of Medicine and Epidemiology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Martha L Slattery
- Department of Internal Medicine, University of Utah, Salt Lake City, UT, USA
| | - Wei Sun
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Efrat L Amitay
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Elizabeth Alwers
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stephen N Thibodeau
- Division of Laboratory Genetics, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Amanda E Toland
- Departments of Cancer Biology and Genetics and Internal Medicine, Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Bethany Van Guelpen
- Department of Radiation Sciences, Oncology Unit, Umeå University, Umeå, Sweden
- Wallenberg Centre for Molecular Medicine, Umeå University, Umeå, Sweden
| | - Syed H Zaidi
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - John D Potter
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Epidemiology, University of Washington, Seattle, WA, USA
- Research Centre for Hauora and Health, Massey University, Wellington, New Zealand
| | | | - Marios Giannakis
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Mingyang Song
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Division of Gastroenterology, Massachusetts General Hospital, Boston, MA, USA
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Jonathan A Nowak
- Program in MPE Molecular Pathological Epidemiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Ave., EBRC Room 404, Boston, MA, 02215, USA
| | - Ulrike Peters
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Amanda I Phipps
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Shuji Ogino
- Program in MPE Molecular Pathological Epidemiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Ave., EBRC Room 404, Boston, MA, 02215, USA.
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Cancer Immunology and Cancer Epidemiology Programs, Dana-Farber Harvard Cancer Center, Boston, MA, USA.
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Substantial relation between the bacterial biofilm and oncogenesis progression in host. Microb Pathog 2023; 175:105966. [PMID: 36592641 DOI: 10.1016/j.micpath.2022.105966] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 01/13/2022] [Accepted: 12/29/2022] [Indexed: 01/01/2023]
Abstract
Globally, bacteria are well-known microorganisms for bacterial biofilm infection. Bacterial biofilm has generated antibiotic resistance and led the persistent infection. But new complications arise with a biofilm that bacterial biofilm shows the new association with oncogenesis. Some bacteria have a carcinogenic nature at the chronic infection stage like Salmonella Typhi, Helicobacter pylori. Thus, biofilm has a significant role in oncogenesis. Few pieces of evidence also support that the bacterial biofilm has a potential role to develop oncogenesis in the human body. Bacterial biofilm is responsible to induce chronic inflammation and is the main basis for the oncogenesis process. But bacterial biofilm association with the oncogenesis mechanism is unknown yet. This article focuses on the function of bacterial biofilm in tumor formation and the mechanism that encourages the oncogenesis and provide a possible and interesting hypothesis involved in between biofilm and host oncogenesis progression. The discussed relationship will provide a sound direction in the field of oncology and concept may give an informative direction in diagnosis and treatment. Bacterial biofilm behavior could be significantly linked with cancer cell formation. This article attracts the attention of researchers of the field because biofilm mediated oncogenesis further indicate towards an important issue in human health.
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Loganathan T, Priya Doss C G. The influence of machine learning technologies in gut microbiome research and cancer studies - A review. Life Sci 2022; 311:121118. [DOI: 10.1016/j.lfs.2022.121118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/19/2022] [Accepted: 10/19/2022] [Indexed: 11/18/2022]
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Xu G, Chang J, Wu H, Shao W, Li G, Hou J, Kang N, Yang J. Enhanced oil recovery performance of surfactant-enhanced Janus SiO2 nanofluid for high temperature and salinity reservoir. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Relationship between mucosa-associated gut microbiota and human diseases. Biochem Soc Trans 2022; 50:1225-1236. [PMID: 36214382 PMCID: PMC9704521 DOI: 10.1042/bst20201201] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 09/21/2022] [Accepted: 09/23/2022] [Indexed: 11/17/2022]
Abstract
The mucus layer covering the gastrointestinal (GI) tract plays a critical role in maintaining gut homeostasis. In the colon, the inner mucus layer ensures commensal microbes are kept at a safe distance from the epithelium while mucin glycans in the outer mucus layer provide microbes with nutrients and binding sites. Microbes residing in the mucus form part of the so-called 'mucosa-associated microbiota' (MAM), a microbial community which, due to its close proximity to the epithelium, has a profound impact on immune and metabolic health by directly impacting gut barrier function and the immune system. Alterations in GI microbial communities have been linked to human diseases. Although most of this knowledge is based on analysis of the faecal microbiota, a growing number of studies show that the MAM signature differs from faecal or luminal microbiota and has the potential to be used to distinguish between diseased and healthy status in well-studied conditions such as IBD, IBS and CRC. However, our knowledge about spatial microbial alterations in pathogenesis remains severely hampered by issues surrounding access to microbial communities in the human gut. In this review, we provide state-of-the-art information on how to access MAM in humans, the composition of MAM, and how changes in MAM relate to changes in human health and disease. A better understanding of interactions occurring at the mucosal surface is essential to advance our understanding of diseases affecting the GI tract and beyond.
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Loktionov A. Colon mucus in colorectal neoplasia and beyond. World J Gastroenterol 2022; 28:4475-4492. [PMID: 36157924 PMCID: PMC9476883 DOI: 10.3748/wjg.v28.i32.4475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/23/2022] [Accepted: 08/06/2022] [Indexed: 02/06/2023] Open
Abstract
Little was known about mammalian colon mucus (CM) until the beginning of the 21st century. Since that time considerable progress has been made in basic research addressing CM structure and functions. Human CM is formed by two distinct layers composed of gel-forming glycosylated mucins that are permanently secreted by goblet cells of the colonic epithelium. The inner layer is dense and impenetrable for bacteria, whereas the loose outer layer provides a habitat for abundant commensal microbiota. Mucus barrier integrity is essential for preventing bacterial contact with the mucosal epithelium and maintaining homeostasis in the gut, but it can be impaired by a variety of factors, including CM-damaging switch of commensal bacteria to mucin glycan consumption due to dietary fiber deficiency. It is proven that impairments in CM structure and function can lead to colonic barrier deterioration that opens direct bacterial access to the epithelium. Bacteria-induced damage dysregulates epithelial proliferation and causes mucosal inflammatory responses that may expand to the loosened CM and eventually result in severe disorders, including colitis and neoplastic growth. Recently described formation of bacterial biofilms within the inner CM layer was shown to be associated with both inflammation and cancer. Although obvious gaps in our knowledge of human CM remain, its importance for the pathogenesis of major colorectal diseases, comprising inflammatory bowel disease and colorectal cancer, is already recognized. Continuing progress in CM exploration is likely to result in the development of a range of new useful clinical applications addressing colorectal disease diagnosis, prevention and therapy.
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Zhang W, Zhang J, Liu T, Xing J, Zhang H, Wang D, Tang D. Bidirectional effects of intestinal microbiota and antibiotics: a new strategy for colorectal cancer treatment and prevention. J Cancer Res Clin Oncol 2022; 148:2387-2404. [PMID: 35661254 DOI: 10.1007/s00432-022-04081-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/19/2022] [Indexed: 12/24/2022]
Abstract
PURPOSE Colorectal cancer (CRC) is the third most common cancer worldwide, and its incidence and mortality rates are increasing every year. The intestinal microbiota has been called the "neglected organ" and there is growing evidence that the intestinal microbiota and its metabolites can be used in combination with immunotherapy, radiotherapy and chemotherapy to greatly enhance the treatment of colorectal cancer and to address some of the side effects and adverse effects of these therapies. Antibiotics have great potential to eliminate harmful microbiota, control infection, and reduce colorectal cancer side effects. However, the use of antibiotics has been a highly controversial issue, and numerous retrospective studies have shown that the use of antibiotics affects the effectiveness of treatment (especially immunotherapy). Understanding the bi-directional role of the gut microbiota and antibiotics will further enhance our research into the diagnosis and treatment of cancer. METHODS We searched the "PubMed" database and selected the following keywords "intestinal microbiota, antibiotics, treatment, prevention, colorectal cancer". In this review, we discuss the role of the intestinal microbiota in immunotherapy, radiotherapy, chemotherapy, diagnosis, and prevention of CRC. We also conclude that the intestinal microbiota and antibiotics work together to promote the treatment of CRC through a bidirectional effect. RESULTS We found that the intestinal microbiota plays a key role in promoting immunotherapy, chemotherapy, radiotherapy, diagnosis and prevention of CRC. In addition, gut microbiota and antibiotic interactions could be a new strategy for CRC treatment. CONCLUSION The bi-directional role of the intestinal microbiota and antibiotics plays a key role in the prevention, diagnosis, and treatment of colorectal cancer.
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Affiliation(s)
- Wenjie Zhang
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - Jie Zhang
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - Tian Liu
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - Juan Xing
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - Huan Zhang
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - Daorong Wang
- Department of General Surgery, Institute of General Surgery, Clinical Medical College, Northern Jiangsu Province Hospital, Yangzhou University, Yangzhou, 225001, China
| | - Dong Tang
- Department of General Surgery, Institute of General Surgery, Clinical Medical College, Northern Jiangsu Province Hospital, Yangzhou University, Yangzhou, 225001, China.
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Zeng K, Huang J, Li X, Ye J, Yang J, Zhang S. Distribution and Drug Resistance of Pathogenic Bacteria in Diabetic Patients with Double J-Stent Associated Infections. Infect Drug Resist 2022; 15:2671-2678. [PMID: 35652084 PMCID: PMC9148917 DOI: 10.2147/idr.s360086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/29/2022] [Indexed: 11/29/2022] Open
Abstract
Objective To analyze the distribution and drug resistance of pathogenic bacteria in diabetic patients with double J-stent associated infections, and to explore the strategies for prevention and treatment of the infections. Methods From January 2019 to December 2021, 266 diabetic patients treated with double J-stent placement in our hospital assessed for eligibility were recruited. Urine and double J-stent samples were collected for pathogenicity assay and screened for biofilm bacteria. Pathogenic bacteria distribution and drug resistance were examined. Results A total of 97 strains (36.5%) of pathogenic bacteria were isolated from urine samples and 129 strains (48.5%) from double J-stent samples (P > 0.05). 3 strains (1.1%) of biofilm bacteria were separated from urine samples and 106 strains (39.8%) from double J-stent samples (P < 0.05). In the double J-stent samples, there were significantly higher ratios of Gram-positive bacteria separated from biofilm bacteria versus the urine-cultured pathogens (44.3%/61.3%, P < 0.05), and higher drug resistance was observed in biofilm bacteria versus urine-cultured pathogens (P < 0.05). Fosfomycin tromethamine showed remarkable susceptibility to both urinary cultured pathogens and double J-stent biofilm bacteria. Conclusion Diabetic patients with double J-stent biofilm-positive bacteria are mainly Gram-positive bacteria, which are prone to biofilm formation and show strong drug resistance.
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Affiliation(s)
- Ke Zeng
- Department of Basic Medicine, Sichuan Vocational College of Health and Rehabilitation, Zigong, Sichuan, People’s Republic of China
| | - Jun Huang
- Department of Urology, First People’s Hospital of Zigong City, Zigong, Sichuan, People’s Republic of China
| | - Xiaobin Li
- Department of Urology, First People’s Hospital of Zigong City, Zigong, Sichuan, People’s Republic of China
| | - Junbing Ye
- Department of Urology, First People’s Hospital of Zigong City, Zigong, Sichuan, People’s Republic of China
| | - Jian Yang
- Department of Urology, First People’s Hospital of Zigong City, Zigong, Sichuan, People’s Republic of China
| | - Suchuan Zhang
- Laboratory Department, First People’s Hospital of Zigong City, Zigong, Sichuan, People’s Republic of China
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Nagao-Kitamoto H, Kitamoto S, Kamada N. Inflammatory bowel disease and carcinogenesis. Cancer Metastasis Rev 2022; 41:301-316. [PMID: 35416564 DOI: 10.1007/s10555-022-10028-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 03/27/2022] [Indexed: 11/24/2022]
Abstract
Colorectal cancer (CRC) is the third most common cancer and the fourth most common cause of cancer mortality worldwide. Colitis-associated colorectal cancer (CAC) is a subtype of CRC associated with inflammatory bowel disease (IBD). It is well known that individuals with IBD have a 2-3 times higher risk of developing CRC than those who do not, rendering CAC a major cause of death in this group. Although the etiology and pathogenesis of CAC are incompletely understood, animal models of chronic inflammation and human cohort data indicate that changes in the intestinal environment, including host response dysregulation and gut microbiota perturbations, may contribute to the development of CAC. Genomic alterations are a hallmark of CAC, with patterns that are distinct from those in sporadic CRC. The discovery of the biological changes that underlie the development of CAC is ongoing; however, current data suggest that chronic inflammation in IBD increases the risk of developing CAC. Therefore, a deeper understanding of the precise mechanisms by which inflammation triggers genetic alterations and disrupts intestinal homeostasis may provide insight into novel therapeutic strategies for the prevention of CAC.
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Affiliation(s)
- Hiroko Nagao-Kitamoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, 1150 W. Medical Center Drive, Ann Arbor, MI, 48109, USA. .,WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan.
| | - Sho Kitamoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, 1150 W. Medical Center Drive, Ann Arbor, MI, 48109, USA.,WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
| | - Nobuhiko Kamada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, 1150 W. Medical Center Drive, Ann Arbor, MI, 48109, USA. .,WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan.
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15
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Rational design of bioactive chimeric construct by exploring archaeal antimicrobial peptides: an in silico approach. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01071-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Jiao J, Zhao L, Huang L, Qin Y, Su Y, Zheng W, Zhang J, Yan Q. The contributions of fliG gene to the pathogenicity of Pseudomonas plecoglossicida and pathogen-host interactions with Epinephelus coioides. FISH & SHELLFISH IMMUNOLOGY 2021; 119:238-248. [PMID: 34634455 DOI: 10.1016/j.fsi.2021.09.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 09/23/2021] [Accepted: 09/25/2021] [Indexed: 06/13/2023]
Abstract
Pseudomonas plecoglossicida is a Gram-negative aerobic rod-shaped bacterium with polar flagella. It is the causative agent of visceral white spot disease in cultured fish, resulting in serious economic losses. In our previous study, RNA sequencing showed that the expression of the fliG gene in P. plecoglossicida is significantly up-regulated during infection of orange-spotted grouper (Epinephelus coioides). In this study, four P. plecoglossicida RNA interference (RNAi) mutants were successfully constructed by linking four short hairpin RNAs (shRNAs), which target different sites of the fliG gene, to pCM130/tac, respectively. The mRNA expression levels of the fliG gene in P. plecoglossicida were significantly decreased in four mutants. The shRNA-335 mutant (fliG-RNAi strain) showed the best silencing efficiency (88.2%) and was thus chosen for further analysis. Electron microscopy indicated that the flagella of the fliG-RNAi strain of P. plecoglossicida were shorter and finer than those of the wild type strain. The fliG-RNAi strain also showed significantly decreased mobility, chemotaxis, adhesion, and biofilm formation. Furthermore, compared with wild type strain infection, E. coioides infected with the fliG-RNAi strain exhibited a 0.5-d delay in the time of first death and 55% reduction in accumulated mortality, as well as milder splenic symptoms. RNAi of the fliG gene significantly affected the transcriptomes of both pathogen and host in the infected spleens of E. coioides. KEGG analysis revealed that the flagellar assembly pathway, bacterial chemotaxis pathway, and starch and sucrose metabolism pathway were significantly enriched in the pathogen at 3 days post infection (dpi). In contrast, the complement and coagulation cascade pathway and antigen processing and presentation pathway were significantly enriched in the host at 3 dpi. More immune-related pathways were enriched at 5 dpi and more differentially expressed genes were found in the complement and coagulation cascade and antigen processing and presentation pathways. Cytokine-cytokine receptor interaction, hematopoietic cell lineage, and IgA-producing intestinal immune network pathways were significantly enriched in the host at 5 dpi. These results indicate that fliG is an important virulence gene of P. plecoglossicida and contributes to the pathogenicity of P. plecoglossicida as well as pathogen-host interactions with E. coioides.
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Affiliation(s)
- Jiping Jiao
- Fisheries College, Jimei University, Xiamen, Fujian, 361021, China
| | - Lingmin Zhao
- Fisheries College, Jimei University, Xiamen, Fujian, 361021, China
| | - Lixing Huang
- Fisheries College, Jimei University, Xiamen, Fujian, 361021, China
| | - Yingxue Qin
- Fisheries College, Jimei University, Xiamen, Fujian, 361021, China
| | - Yongquan Su
- State Key Laboratory of Large Yellow Croaker Breeding, Ningde, Fujian, 352000, China
| | - Weiqiang Zheng
- State Key Laboratory of Large Yellow Croaker Breeding, Ningde, Fujian, 352000, China
| | - Jiaonan Zhang
- Key Laboratory of Special Aquatic Feed for Fujian, Fujian Tianma Technology Company Limited, Fuzhou, Fujian, 350308, China
| | - Qingpi Yan
- Fisheries College, Jimei University, Xiamen, Fujian, 361021, China; State Key Laboratory of Large Yellow Croaker Breeding, Ningde, Fujian, 352000, China.
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Serna N, Carratalá JV, Conchillo-Solé O, Martínez-Torró C, Unzueta U, Mangues R, Ferrer-Miralles N, Daura X, Vázquez E, Villaverde A. Antibacterial Activity of T22, a Specific Peptidic Ligand of the Tumoral Marker CXCR4. Pharmaceutics 2021; 13:1922. [PMID: 34834337 PMCID: PMC8621837 DOI: 10.3390/pharmaceutics13111922] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/21/2021] [Accepted: 11/05/2021] [Indexed: 12/13/2022] Open
Abstract
CXCR4 is a cytokine receptor used by HIV during cell attachment and infection. Overexpressed in the cancer stem cells of more than 20 human neoplasias, CXCR4 is a convenient antitumoral drug target. T22 is a polyphemusin-derived peptide and an effective CXCR4 ligand. Its highly selective CXCR4 binding can be exploited as an agent for the cell-targeted delivery and internalization of associated antitumor drugs. Sharing chemical and structural traits with antimicrobial peptides (AMPs), the capability of T22 as an antibacterial agent remains unexplored. Here, we have detected T22-associated antimicrobial activity and biofilm formation inhibition over Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa, in a spectrum broader than the reference AMP GWH1. In contrast to GWH1, T22 shows neither cytotoxicity over mammalian cells nor hemolytic activity and is active when displayed on protein-only nanoparticles through genetic fusion. Under the pushing need for novel antimicrobial agents, the discovery of T22 as an AMP is particularly appealing, not only as its mere addition to the expanding catalogue of antibacterial drugs. The recognized clinical uses of T22 might allow its combined and multivalent application in complex clinical conditions, such as colorectal cancer, that might benefit from the synchronous destruction of cancer stem cells and local bacterial biofilms.
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Affiliation(s)
- Naroa Serna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
| | - José Vicente Carratalá
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
| | - Oscar Conchillo-Solé
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
| | - Carlos Martínez-Torró
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
| | - Ugutz Unzueta
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
- Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- Josep Carreras Research Institute, 08916 Barcelona, Spain
| | - Ramón Mangues
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
- Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- Josep Carreras Research Institute, 08916 Barcelona, Spain
| | - Neus Ferrer-Miralles
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
| | - Xavier Daura
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
- Catalan Institution for Research and Advanced Studies (ICREA), 08010 Barcelona, Spain
| | - Esther Vázquez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
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Mucinous Adenocarcinoma Predicts Poor Response and Prognosis in Patients With Locally Advanced Rectal Cancer: A Pooled Analysis of Individual Participant Data From 3 Prospective Studies. Clin Colorectal Cancer 2021; 20:e240-e248. [PMID: 34334298 DOI: 10.1016/j.clcc.2021.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/20/2021] [Accepted: 06/23/2021] [Indexed: 11/24/2022]
Abstract
PURPOSE To evaluate the predictive implications and prognosis of mucinous adenocarcinoma (MAC) in locally advanced rectal cancer (LARC) with intensified neoadjuvant treatment. METHODS Individual patient data of LARC patients from 3 prospective clinical trials was analyzed. Neoadjuvant treatment regimens comprised chemoradiotherapy (CRT) with fluorouracil (5-FU) or mFOLFOX6, neoadjuvant chemotherapy alone with mFOLFOX6 or mFOLFOXIRI. The postoperative pathological result, local recurrence and disease-free survival (DFS) were retrospectively analyzed in patients with MAC and adenocarcinoma (AC) with neoadjuvant treatment. RESULTS Totally, 743 patients were recruited, with 620 patients eligible for analysis. Fifty-three (8.5%) patients were MAC. The pathological complete response (pCR) rate and tumor downstaging rate (ypStage 0-I) between MAC and AC patients was 7.5% vs. 22.0% (P = .01) and 20.8% vs. 48.7% (P < .001), respectively. Among patients receiving preoperative CRT with 5FU or mFOLFOX6, the pCR rate and tumor downstaging rate between MAC and AC patients was 11.1% vs. 27.3% (P = .03) and 23.7% vs. 52.6% (P = .001), respectively. Regarding neoadjuvant chemotherapy alone with mFOLFOX6 or mFOLFOXIRI, the pCR rate and tumor downstaging rate was 0 vs.13.2% (P = .11) and 11.8% vs. 42.5% (P = .03) between MAC and AC group, respectively. With the median follow-up time of 38.9 months, the 3-year DFS and 3-year locoregional recurrence rate was 58.4% vs. 77.6% (P = .02) and 26.0% vs. 5.7% (P = .001) in the MAC and AC group, respectively. MAC (hazard ratio [HR] 1.85, 95% confidence interval [CI], 1.15-2.98), PNI (HR 3.23, 95% CI, 1.85-5.72) and LVI (HR 2.04, 95% CI, 1.02-4.08) were independent prognosis factors and were associated with worse DFS. CONCLUSIONS Patients with MAC of the rectum are associated with a lower pCR rate and tumor downstaging rate, higher incidence of local recurrence, and poorer DFS with neoadjuvant treatment.
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Coleman OI, Haller D. Microbe-Mucus Interface in the Pathogenesis of Colorectal Cancer. Cancers (Basel) 2021; 13:cancers13040616. [PMID: 33557139 PMCID: PMC7913824 DOI: 10.3390/cancers13040616] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/18/2021] [Accepted: 01/27/2021] [Indexed: 12/24/2022] Open
Abstract
Overlying gastrointestinal epithelial cells is the transparent mucus layer that separates the lumen from the host. The dynamic mucus layer serves to lubricate the mucosal surface, to protect underlying epithelial cells, and as a transport medium between luminal contents and epithelial cells. Furthermore, it provides a habitat for commensal bacteria and signals to the underlying immune system. Mucins are highly glycosylated proteins, and their glycocode is tissue-specific and closely linked to the resident microbiota. Aberrant mucin expression and glycosylation are linked to chronic inflammation and gastrointestinal cancers, including colorectal cancer (CRC). Aberrant mucus production compromises the mucus layer and allows bacteria to come into close contact with the intestinal epithelium, potentially triggering unfavorable host responses and the subsequent development of tumors. Here, we review our current understanding of the interaction between the intestinal microbiota and mucus in healthy and CRC subjects. Deep knowledge of the intricate mechanisms of microbe-mucus interactions may contribute to the development of novel treatment strategies for CRC, in which a dysfunctional mucus layer is observed.
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Affiliation(s)
- Olivia I. Coleman
- Department of Nutrition and Immunology, School of Life Sciences, Technical University of Munich, 85354 Freising, Germany;
- Correspondence: ; Tel.: +49-08161-71-2375
| | - Dirk Haller
- Department of Nutrition and Immunology, School of Life Sciences, Technical University of Munich, 85354 Freising, Germany;
- ZIEL—Institute for Food & Health, Technical University of Munich, 85354 Freising, Germany
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Lang M, Baumgartner M, Rożalska A, Frick A, Riva A, Jarek M, Berry D, Gasche C. Crypt residing bacteria and proximal colonic carcinogenesis in a mouse model of Lynch syndrome. Int J Cancer 2020; 147:2316-2326. [PMID: 32350866 PMCID: PMC7496850 DOI: 10.1002/ijc.33028] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 03/11/2020] [Accepted: 04/14/2020] [Indexed: 02/06/2023]
Abstract
Colorectal cancer is a multifactorial disease involving inherited DNA mutations, environmental factors, gut inflammation and intestinal microbiota. Certain germline mutations within the DNA mismatch repair system are associated with Lynch syndrome tumors including right-sided colorectal cancer with mucinous phenotype and presence of an inflammatory infiltrate. Such tumors are more often associated with bacterial biofilms, which may contribute to disease onset and progression. Inflammatory bowel diseases are also associated with colorectal cancer and intestinal dysbiosis. Herein we addressed the question, whether inflammation can aggravate colorectal cancer development under mismatch repair deficiency. MSH2loxP/loxP Vill-cre mice were crossed into the IL-10-/- background to study the importance of inflammation and mucosal bacteria as a driver of tumorigenesis in a Lynch syndrome mouse model. An increase in large bowel tumorigenesis was found in double knockout mice both under conventional housing and under specific pathogen-free conditions. This increase was mostly due to the development of proximal tumors, a hotspot for tumorigenesis in Lynch syndrome, and was associated with a higher degree of inflammation. Additionally, bacterial invasion into the mucus of tumor crypts was observed in the proximal tumors. Inflammation shifted fecal and mucosal microbiota composition and was associated with enrichment in Escherichia-Shigella as well as Akkermansia, Bacteroides and Parabacteroides genera in fecal samples. Tumor-bearing double knockout mice showed a similar enrichment for Escherichia-Shigella and Parabacteroides. Lactobacilli, Lachnospiraceae and Muribaculaceae family members were depleted upon inflammation. In summary, chronic inflammation aggravates colonic tumorigenesis under mismatch repair deficiency and is associated with a shift in microbiota composition.
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Affiliation(s)
- Michaela Lang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine 3Medical University of ViennaViennaAustria
- Centre for Microbiology and Environmental Systems Science, Department of Microbiology and Ecosystem Science, Division of Microbial EcologyUniversity of ViennaViennaAustria
| | - Maximilian Baumgartner
- Division of Gastroenterology and Hepatology, Department of Internal Medicine 3Medical University of ViennaViennaAustria
| | - Aleksandra Rożalska
- Division of Gastroenterology and Hepatology, Department of Internal Medicine 3Medical University of ViennaViennaAustria
| | - Adrian Frick
- Division of Gastroenterology and Hepatology, Department of Internal Medicine 3Medical University of ViennaViennaAustria
| | - Alessandra Riva
- Centre for Microbiology and Environmental Systems Science, Department of Microbiology and Ecosystem Science, Division of Microbial EcologyUniversity of ViennaViennaAustria
| | - Michael Jarek
- Genome Analytics, Helmholtz Centre for Infection ResearchBraunschweigGermany
| | - David Berry
- Centre for Microbiology and Environmental Systems Science, Department of Microbiology and Ecosystem Science, Division of Microbial EcologyUniversity of ViennaViennaAustria
- The Joint Microbiome Facility of the Medical University of Vienna and the University of ViennaViennaAustria
| | - Christoph Gasche
- Division of Gastroenterology and Hepatology, Department of Internal Medicine 3Medical University of ViennaViennaAustria
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21
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Cammarota G, Ianiro G, Ahern A, Carbone C, Temko A, Claesson MJ, Gasbarrini A, Tortora G. Gut microbiome, big data and machine learning to promote precision medicine for cancer. Nat Rev Gastroenterol Hepatol 2020; 17:635-648. [PMID: 32647386 DOI: 10.1038/s41575-020-0327-3] [Citation(s) in RCA: 143] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/02/2020] [Indexed: 12/13/2022]
Abstract
The gut microbiome has been implicated in cancer in several ways, as specific microbial signatures are known to promote cancer development and influence safety, tolerability and efficacy of therapies. The 'omics' technologies used for microbiome analysis continuously evolve and, although much of the research is still at an early stage, large-scale datasets of ever increasing size and complexity are being produced. However, there are varying levels of difficulty in realizing the full potential of these new tools, which limit our ability to critically analyse much of the available data. In this Perspective, we provide a brief overview on the role of gut microbiome in cancer and focus on the need, role and limitations of a machine learning-driven approach to analyse large amounts of complex health-care information in the era of big data. We also discuss the potential application of microbiome-based big data aimed at promoting precision medicine in cancer.
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Affiliation(s)
- Giovanni Cammarota
- Gastroenterology Department, Fondazione Policlinico Universitario Agostino Gemelli-IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy.
| | - Gianluca Ianiro
- Gastroenterology Department, Fondazione Policlinico Universitario Agostino Gemelli-IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Anna Ahern
- School of Microbiology and APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Carmine Carbone
- Oncology Department, Fondazione Policlinico Universitario Agostino Gemelli-IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Andriy Temko
- School of Engineering, University College Cork, Cork, Ireland.,Qualcomm ML R&D, Cork, Ireland
| | - Marcus J Claesson
- School of Microbiology and APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Antonio Gasbarrini
- Gastroenterology Department, Fondazione Policlinico Universitario Agostino Gemelli-IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Giampaolo Tortora
- Oncology Department, Fondazione Policlinico Universitario Agostino Gemelli-IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
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22
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Huang J, Chen G, Liu H, Zhang Y, Tang R, Huang Q, Fu K, Peng X, Xiao S. Surgery improves the prognosis of colon mucinous adenocarcinoma with liver metastases: a SEER-based study. BMC Cancer 2020; 20:908. [PMID: 32967651 PMCID: PMC7510088 DOI: 10.1186/s12885-020-07400-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 09/13/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Mucinous adenocarcinoma (MC) is the second most common pathological type of colon carcinoma (CC). Colon cancer liver metastases (CLMs) are common and lethal, and complete resection of the primary tumour and metastases for CLM patients would be beneficial. However, there is still no consensus on the role of surgery for MC with liver metastases (M-CLM). METHODS Patients diagnosed with M-CLM or classical adenocarcinoma with CLM (A-CLM) from 2010 to 2013 in the Surveillance, Epidemiology, and End Results (SEER) database were retrieved. The clinicopathological features and overall survival (OS) and cancer-specific survival (CSS) data were compared and analysed. RESULTS The results showed that the M-CLM group had a larger tumour size, more right colon localizations, higher pT and pN stages, more female patients, and more retrieved and positive lymph nodes and accounted for a higher proportion of surgeries than the A-CLM group. The OS and CSS of M-CLM patients who underwent any type of surgery were significantly better than those of patients who did not undergo any surgery, but poorer than those of A-CLM patients who underwent surgery. Meanwhile, the OS and CSS of M-CLM and A-CLM patients who did not undergo any surgery were comparable. Compared with hemicolectomy, partial colectomy led to similar or better OS and CSS for M-CLM, and surgery was an independent protective factor for long-term survival in M-CLM. CONCLUSIONS M-CLM had distinct clinicopathological characteristics from A-CLM, and surgery could improve the survival and is an independent favourable prognostic factor for M-CLM. In addition, partial colectomy might be a non-inferiority choice as hemicolectomy for M-CLM according to the results from this study.
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Affiliation(s)
- Jia Huang
- Institute of Clinical Medicine of the First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China.,Hengyang Medical College, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Guodong Chen
- Department of Surgery of the First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Huan Liu
- Department of Surgery of the First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Yiwei Zhang
- Department of Surgery of the First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Rong Tang
- Department of Gastrointestinal Surgery of the First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Qiulin Huang
- Department of Gastrointestinal Surgery of the First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Kai Fu
- Institute of Molecular Precision Medicine and Hunan Key Laboratory of Molecular Precision Medicine, and Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China.
| | - Xiuda Peng
- Department of Surgery of the Second Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
| | - Shuai Xiao
- Institute of Clinical Medicine of the First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China. .,Department of Gastrointestinal Surgery of the First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
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23
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Wallace K, Li H, Paulos CM, Lewin DN, Alekseyenko AV. Racial disparity in survival of patients diagnosed with early-onset colorectal cancer. COLORECTAL CANCER 2020. [DOI: 10.2217/crc-2020-0015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background: Survival is reduced in African–Americans (AAs) diagnosed with colorectal cancer (CRC), especially in those <50 years old, when compared with Caucasian Americans (CAs). Yet, the role of clinicopathologic features of CRCs on racial differences in survival needs further study. Materials & methods: Over 1000 individuals (CA 709, AA 320) diagnosed with CRC were studied for survival via the Cox proportional hazards regression analysis based on race and risk of death in two age groups (<50 or 50+). Results: Risk of death for younger AAs (<50) was elevated compared with younger CAs (hazard ratio [HR] 1.98 [1.26–3.09]). Yet no racial differences in survival was observed in older cohort (50+ years), HR 1.07 (0.88–1.31); p for interaction = 0.01. In younger AAs versus CAs only, colonic location attenuated the risk of death. Conclusion: The tumor location and histology influence the poorer survival observed in younger AAs suggesting these may also influence treatment responses.
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Affiliation(s)
- Kristin Wallace
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC 29425, USA
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Hong Li
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC 29425, USA
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Chrystal M Paulos
- Department of Microbiology & Immunology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - David N Lewin
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Alexander V Alekseyenko
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC 29425, USA
- The Biomedical Informatics Center & Department of Oral Health Sciences, College of Dental Medicine; & Department of Healthcare Leadership & Management, College of Health Professions, Medical University of South Carolina, Charleston, SC 29425, USA
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24
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Kvich L, Burmølle M, Bjarnsholt T, Lichtenberg M. Do Mixed-Species Biofilms Dominate in Chronic Infections?-Need for in situ Visualization of Bacterial Organization. Front Cell Infect Microbiol 2020; 10:396. [PMID: 32850494 PMCID: PMC7419433 DOI: 10.3389/fcimb.2020.00396] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/29/2020] [Indexed: 12/19/2022] Open
Abstract
Chronic infections present a serious economic burden to health-care systems. The severity and prevalence of chronic infections are continuously increasing due to an aging population and an elevated number of lifestyle related diseases such as diabetes. Treatment of chronic infections has proven difficult, mainly due to the presence of biofilms that render bacteria more tolerant toward antimicrobials and the host immune response. Chronic infections have been described to harbor several different bacterial species and it has been hypothesized that microscale interactions and mixed-species consortia are present as described for most natural occurring biofilms i.e., aquatic systems and industrial settings, but also for some commensal human biofilms i.e., the mouth microbiota. However, the presence of mixed-species biofilms in chronic infections is most often an assumption based on culture-based methods and/or by means of molecular approaches, such as PCR and sequencing performed from homogenized bulk tissue samples. These methods disregard the spatial organization of the bacterial community and thus valuable information on biofilm aggregate composition, spatial organization, and possible interactions between different species is lost. Hitherto, only few studies have made visual in situ presentations of mixed-species biofilms in chronic infections, which is pivotal for the description of bacterial composition, spatial distribution, and interspecies interaction on the microscale. In order for bacteria to interact (synergism, commensalism, mutualism, competition, etc.) they need to be in close proximity to each other on the scale where they can affect e.g., solute concentrations. We argue that visual proof of mixed species biofilms in chronic infections is scarce compared to what is seen in e.g., environmental biofilms and call for a debate on the importance of mixed-species biofilm in chronic infections.
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Affiliation(s)
- Lasse Kvich
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, Costerton Biofilm Center, University of Copenhagen, Copenhagen, Denmark
| | - Mette Burmølle
- Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Bjarnsholt
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, Costerton Biofilm Center, University of Copenhagen, Copenhagen, Denmark.,Department of Clinical Microbiology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Mads Lichtenberg
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, Costerton Biofilm Center, University of Copenhagen, Copenhagen, Denmark
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25
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Cell-free supernatant of Streptococcus salivarius M18 impairs the pathogenic properties of Pseudomonas aeruginosa and Klebsiella pneumonia. Arch Microbiol 2020; 202:2825-2840. [PMID: 32747998 DOI: 10.1007/s00203-020-02005-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 07/15/2020] [Accepted: 07/24/2020] [Indexed: 12/17/2022]
Abstract
M18 strain of Streptococcus salivarius is a bacterial replacement probiotic that has been suggested for use in the oral cavity. Here, we have shown that S. salivarius M18 cell-free supernatant reduced the growth of the two most common human pathogens Pseudomonas aeruginosa and Klebsiella pneumonia and sensitized the pathogenic bacteria to antibiotic. Besides, the supernatant inhibited biofilm formation of P. aeruginosa drastically. For pinpointing the biomolecular changes that occurred in P. aeruginosa incubated with the probiotic supernatant, attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy was used. Unsupervised learning algorithms, principal component analysis (PCA) and hierarchical cluster analysis (HCA), and intensity analyses of individual spectral bands exhibited comprehensive alterations in the polysaccharide and lipid contents and compositions of P. aeruginosa cultivated with S. salivarius M18 cell-free supernatant. These results indicate that S. salivarius M18 has the potential for the prevention or alleviation of different pathogen-induced infections along with the infections of oral pathogens.
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26
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Ye P, Xi Y, Huang Z, Xu P. Linking Obesity with Colorectal Cancer: Epidemiology and Mechanistic Insights. Cancers (Basel) 2020; 12:cancers12061408. [PMID: 32486076 PMCID: PMC7352519 DOI: 10.3390/cancers12061408] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 05/24/2020] [Accepted: 05/26/2020] [Indexed: 02/06/2023] Open
Abstract
The incidence of obesity and colorectal cancer (CRC) has risen rapidly in recent decades. More than 650 million obese and 2 billion overweight individuals are currently living in the world. CRC is the third most common cancer. Obesity is regarded as one of the key environmental risk factors for the pathogenesis of CRC. In the present review, we mainly focus on the epidemiology of obesity and CRC in the world, the United States, and China. We also summarize the molecular mechanisms linking obesity to CRC in different aspects, including nutriology, adipokines and hormones, inflammation, gut microbiota, and bile acids. The unmet medical needs for obesity-related CRC are still remarkable. Understanding the molecular basis of these associations will help develop novel therapeutic targets and approaches for the treatment of obesity-related CRC.
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Affiliation(s)
- Pengfei Ye
- College of Clinical Medicine, Henan University of Science and Technology, Luoyang 471003, China;
| | - Yue Xi
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15213, USA;
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China;
| | - Zhiying Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China;
| | - Pengfei Xu
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15213, USA;
- Correspondence: ; Tel.: +1-412-708-4694
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27
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Mo Z, Huang P, Yang C, Xiao S, Zhang G, Ling F, Li L. Meta-analysis of 16S rRNA Microbial Data Identified Distinctive and Predictive Microbiota Dysbiosis in Colorectal Carcinoma Adjacent Tissue. mSystems 2020; 5:e00138-20. [PMID: 32291348 PMCID: PMC7159898 DOI: 10.1128/msystems.00138-20] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 03/25/2020] [Indexed: 02/07/2023] Open
Abstract
As research focusing on the colorectal cancer fecal microbiome using shotgun sequencing continues, increasing evidence has supported correlations between colorectal carcinomas (CRCs) and fecal microbiome dysbiosis. However, large-scale on-site and off-site (surrounding adjacent) tissue microbiome characterization of CRC was underrepresented. Here, considering each taxon as a feature, we demonstrate a machine learning-based method to investigate tissue microbial differences among CRC, colorectal adenoma (CRA), and healthy control groups using 16S rRNA data sets retrieved from 15 studies. A total of 2,099 samples were included and analyzed in case-control comparisons. Multiple methods, including differential abundance analysis, random forest classification, cooccurrence network analysis, and Dirichlet multinomial mixture analysis, were conducted to investigate the microbial signatures. We showed that the dysbiosis of the off-site tissue of colonic cancer was distinctive and predictive. The AUCs (areas under the curve) were 80.7%, 96.0%, and 95.8% for CRC versus healthy control random forest models using stool, tissue, and adjacent tissue samples and 69.9%, 91.5%, and 89.5% for the corresponding CRA models, respectively. We also found that the microbiota ecologies of the surrounding adjacent tissues of CRC and CRA were similar to their on-site counterparts according to network analysis. Furthermore, based on the enterotyping of tissue samples, the cohort-specific microbial signature might be the crux in addressing classification generalization problems. Despite cohort heterogeneity, the dysbiosis of lesion-adjacent tissues might provide us with further perspectives in demonstrating the role of the microbiota in colorectal cancer tumorigenesis.IMPORTANCE Turbulent fecal and tissue microbiome dysbiosis of colorectal carcinoma and adenoma has been identified, and some taxa have been proven to be carcinogenic. However, the microbiomes of surrounding adjacent tissues of colonic cancerous tissues were seldom investigated uniformly on a large scale. Here, we characterize the microbiome signatures and dysbiosis of various colonic cancer sample groups. We found a high correlation between colorectal carcinoma adjacent tissue microbiomes and their on-site counterparts. We also discovered that the microbiome dysbiosis in adjacent tissues could discriminate colorectal carcinomas from healthy controls effectively. These results extend our knowledge on the microbial profile of colorectal cancer tissues and highlight microbiota dysbiosis in the surrounding tissues. They also suggest that microbial feature variations of cancerous lesion-adjacent tissues might help to reveal the microbial etiology of colonic cancer and could ultimately be applied for diagnostic and screening purposes.
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Affiliation(s)
- Zongchao Mo
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, Guangdong, China
- BGI Genomics, BGI-Shenzhen, Shenzhen, China
| | | | - Chao Yang
- BGI Genomics, BGI-Shenzhen, Shenzhen, China
| | - Sihao Xiao
- BGI Genomics, BGI-Shenzhen, Shenzhen, China
| | | | - Fei Ling
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, Guangdong, China
| | - Lin Li
- BGI Genomics, BGI-Shenzhen, Shenzhen, China
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28
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Zhang M, Kang J, Wu B, Qin Y, Huang L, Zhao L, Mao L, Wang S, Yan Q. Comparative transcriptome and phenotype analysis revealed the role and mechanism of ompR in the virulence of fish pathogenic Aeromonas hydrophila. Microbiologyopen 2020; 9:e1041. [PMID: 32282134 PMCID: PMC7349151 DOI: 10.1002/mbo3.1041] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 03/18/2020] [Accepted: 03/18/2020] [Indexed: 12/16/2022] Open
Abstract
Aeromonas hydrophila B11 strain was isolated from diseased Anguilla japonica, which had caused severe gill ulcers in farmed eel, causing huge economic losses. EnvZ‐OmpR is a model two‐component system in the bacteria and is widely used in the research of signal transduction and gene transcription regulation. In this study, the ompR of A. hydrophila B11 strain was first silenced by RNAi technology. The role of ompR in the pathogenicity of A. hydrophila B11 was investigated by analyzing both the bacterial comparative transcriptome and phenotype. The qRT‐PCR results showed that the expression of ompR in the ompR‐RNAi strain decreased by 97% compared with the wild‐type strain. The virulence test showed that after inhibition of the ompR expression, the LD50 of A. hydrophila B11 decreased by an order of magnitude, suggesting that ompR is involved in the regulation of bacterial virulence. Comparative transcriptome analysis showed that the expression of ompR can directly regulate the expression of several important virulence‐related genes, such as the bacterial type II secretion system; moreover, ompR expression also regulates the expression of multiple genes related to bacterial chemotaxis, motility, adhesion, and biofilm formation. Further studies on the phenotype of A. hydrophila B11 and ompR‐RNAi also confirmed that the downregulation of ompR expression can decrease bacterial chemotaxis, adhesion, and biofilm formation.
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Affiliation(s)
- Mengmeng Zhang
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, China
| | - Jianping Kang
- Fujian Fisheries Technology Extension Center, Fuzhou, China
| | - Bin Wu
- Fujian Fisheries Technology Extension Center, Fuzhou, China
| | - Yingxue Qin
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, China.,Fujian Province Key Laboratory of Special Aquatic Formula Feed, Fujian Tianma Science and Technology Group Co., Ltd., Fuqing, China
| | - Lixing Huang
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, China
| | - Lingmin Zhao
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, China
| | - Leilei Mao
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, China
| | - Suyun Wang
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, China
| | - Qingpi Yan
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, China
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29
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Yu LG, Chen SQ, Mao GL. Relationship between EZH2 and VEGF expression and prognosis in colorectal cancer. Shijie Huaren Xiaohua Zazhi 2020; 28:155-166. [DOI: 10.11569/wcjd.v28.i5.155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is a common malignant tumor of the digestive system. However, its exact pathogenesis and independent prognostic factors are still unclear. In this study, we analyzed the expression of enhancer of zeste homolog 2 (EZH2) and vascular endothelial growth factor (VEGF) genes in CRC by using bioinformatics method and their relationship with prognosis. The expression of EZHE2 and VEGF proteins and their relationship with the patients' clinical characteristics were detected by immunohistochemistry.
AIM To investigate the expression and mutation status of EZH2 and VEGF in CRC and their relationship with clinicopathological features and prognosis.
METHODS The expression of EZH2 and VEGF genes in CRC and tumor adjacent tissues was compared in the TCGA database, and the mutations of EZH2 and VEGF genes were analyzed. The expression network of EZH2 and VEGF genes was established with the STRING database and the key genes in the network were screened. According to the expression of EZH2 and VEGF in tumor tissues, the patients were divided into high and low expression groups. Cox regression model and log-rank test were used to compare the difference of total survival and disease-free survival between the high and low expression groups. In addition, 80 patients with CRC who underwent surgery were selected, and their cancer tissues and adjacent tissues were collected. The expression of EZH2 and VEGF proteins in the above tissues was detected by immunohistochemistry.
RESULTS Analysis based on the TCGA database showed that the expression levels of EZH2 and VEGF genes in CRC tissues were significantly higher than those in matched normal intestinal epithelial tissues (P < 0.05), but they had no significant correlation with clinical stage of CRC (P > 0.05).The mutation rates of EZH2 and VEGF genes in human CRC were 1.5% and 1.9%, respectively, and there were significant differences in the expression levels of EZH2 and VEGF mRNA in tissues with different EZH2 and VEGF mutation statuses. There are 22 proteins in the network. The average interaction index of each protein is 10.5, the regional aggregation index is 0.8, and the protein enrichment was obvious (P < 0.01). EZH2, DNMT1, HDAC2, YY1, and SUZ12 were screened as the key genes in the network using Cytohubb software. There was no correlation between the expression of EZH2 and VEGF and the total survival time of patients (P > 0.05), but the disease-free survival time of patients with high expression of VEGF was significantly lower than that of patients with low expression of VEGF (HR = 1.8, P < 0.05). Immunohistochemistry showed that the positive rates of EZH2 and VEGF proteins in CRC tissues were significantly higher than those in adjacent tissues (P < 0.01). The positive expression of EZH2 was related to tumor diameter, differentiation, and Duke stage (P < 0.05). The positive expression of VEGF was correlated with degree of differentiation and Duke stage (P < 0.05).
CONCLUSION EZH2 and VEGF are up-regulated and mutated in CRC tissues. The high expression of EZH2 and VEGF is related to tumor size, differentiation, and Duke stage, and can be used as potential molecular markers for the prognosis of CRC.
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Affiliation(s)
- Li-Gang Yu
- Department of General Surgery, Tianjin Wuqing District People's Hospital, Tianjin 301700, China
| | - Su-Qin Chen
- Department of General Surgery, Tianjin Wuqing District People's Hospital, Tianjin 301700, China,Department of Pathology, Tianjin Wuqing District People's Hospital, Tianjin 301700, China
| | - Guo-Liang Mao
- Department of General Surgery, Tianjin Wuqing District People's Hospital, Tianjin 301700, China
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