1
|
Mubanga M, Ploner A, Schuppe-Koistinen I, Magnusson PKE, Boulund F, Debelius JW, Almqvist C. The gut microbiome and asthma in a Swedish twin study. Clin Exp Allergy 2023; 53:1212-1215. [PMID: 37549655 DOI: 10.1111/cea.14379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 07/07/2023] [Accepted: 07/18/2023] [Indexed: 08/09/2023]
Affiliation(s)
- Mwenya Mubanga
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Alexander Ploner
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Ina Schuppe-Koistinen
- Department of Microbiology, Tumor and Cell Biology, Center for Translational Microbiome Research, Karolinska Institutet, Stockholm, Sweden
| | - Patrik K E Magnusson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Fredrik Boulund
- Department of Microbiology, Tumor and Cell Biology, Center for Translational Microbiome Research, Karolinska Institutet, Stockholm, Sweden
| | - Justine W Debelius
- Department of Microbiology, Tumor and Cell Biology, Center for Translational Microbiome Research, Karolinska Institutet, Stockholm, Sweden
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Catarina Almqvist
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Pediatric Allergy and Pulmonology Unit at Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| |
Collapse
|
2
|
Chen Y, Li W, Chang ET, Debelius JW, Manoharan L, Zheng Y, Li Y, Huang G, Adami HO, Knight R, Cai Y, Zhang Z, Ye W. Oral fungal profiling and risk of nasopharyngeal carcinoma: a population-based case-control study. EBioMedicine 2023; 96:104813. [PMID: 37776725 PMCID: PMC10550808 DOI: 10.1016/j.ebiom.2023.104813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/06/2023] [Accepted: 09/15/2023] [Indexed: 10/02/2023] Open
Abstract
BACKGROUND Dysbiosis of the oral mycobiome has been linked to some diseases, including cancers. However, the role of oral fungal communities in nasopharyngeal carcinoma (NPC) carcinogenesis has not previously been investigated. METHODS We characterized the oral salivary fungal mycobiome in 476 untreated incident NPC patients and 537 population-based controls using fungal internal transcribed spacer (ITS)-2 sequencing. The relationship between oral fungal mycobiome and the risk of NPC was assessed through bioinformatic and biostatistical analyses. FINDINGS We found that lower fungal alpha diversity was associated with an increased odds of NPC [lower vs. higher: observed features (adjusted odds ratio [OR] = 5.81, 95% confidence interval [CI] = 3.60-9.38); Simpson diversity (1.53, 1.03-2.29); Shannon diversity (2.03, 1.35-3.04)]. We also observed a significant difference in global fungal community patterns between cases and controls based on Bray-Curtis dissimilarity (P < 0.001). Carriage of oral fungal species, specifically, Saccharomyces cerevisiae, Candida tropicalis, Lodderomyces elongisporus, Candida albicans, and Fusarium poae, was associated with significantly higher odds of NPC, with ORs ranging from 1.56 to 4.66. Individuals with both low fungal and low bacterial alpha diversity had a profoundly elevated risk of NPC. INTERPRETATION Our results suggest that dysbiosis in the oral mycobiome, characterized by a loss of fungal community diversity and overgrowth of several fungal organisms, is associated with a substantially increased risk of NPC. FUNDING This work was funded by the US National Institutes of Health, the Swedish Research Council, the High-level Talents Research Start-up Project of Fujian Medical University, and the China Scholarship Council.
Collapse
Affiliation(s)
- Yufeng Chen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, 17177, Sweden
| | - Wanxin Li
- Department of Epidemiology and Health Statistics & Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350000, China
| | - Ellen T Chang
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, 94143, USA
| | - Justine W Debelius
- Center for Translational Microbiome Research, Department of Microbiology, Tumor and Cancer Biology, Karolinska Institutet, Stockholm, 17177, Sweden; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - Lokeshwaran Manoharan
- National Bioinformatics Infrastructure Sweden (NBIS), Lund University, Lund, 22100, Sweden
| | - Yuming Zheng
- Guangxi Health Commission Key Laboratory of Molecular Epidemiology of Nasopharyngeal Carcinoma, Wuzhou Red Cross Hospital, Wuzhou, 543002, China; Department of Preventive Medicine, Wuzhou Cancer Center, Wuzhou, 543002, China
| | - Yancheng Li
- Guangxi Health Commission Key Laboratory of Molecular Epidemiology of Nasopharyngeal Carcinoma, Wuzhou Red Cross Hospital, Wuzhou, 543002, China; Cangwu Institute for Nasopharyngeal Carcinoma Control and Prevention, Wuzhou, 543002, China
| | - Guangwu Huang
- Department of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China; Key Laboratory of High-Incidence-Tumor Prevention & Treatment (Guangxi Medical University), Ministry of Education, Nanning, 530021, China
| | - Hans-Olov Adami
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, 17177, Sweden; Clinical Effectiveness Group, Institute of Health and Society, University of Oslo, Oslo, NO-0316, Norway
| | - Rob Knight
- Department of Pediatrics, University of California San Diego, CA, 92093, USA
| | - Yonglin Cai
- Guangxi Health Commission Key Laboratory of Molecular Epidemiology of Nasopharyngeal Carcinoma, Wuzhou Red Cross Hospital, Wuzhou, 543002, China; Department of Preventive Medicine, Wuzhou Cancer Center, Wuzhou, 543002, China.
| | - Zhe Zhang
- Department of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China; Key Laboratory of High-Incidence-Tumor Prevention & Treatment (Guangxi Medical University), Ministry of Education, Nanning, 530021, China.
| | - Weimin Ye
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, 17177, Sweden; Department of Epidemiology and Health Statistics & Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350000, China.
| |
Collapse
|
3
|
Debelius JW, Engstrand L, Matussek A, Brusselaers N, Morton JT, Stenmarker M, Olsen RS. The Local Tumor Microbiome Is Associated with Survival in Late-Stage Colorectal Cancer Patients. Microbiol Spectr 2023; 11:e0506622. [PMID: 37042765 PMCID: PMC10269740 DOI: 10.1128/spectrum.05066-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/27/2023] [Indexed: 04/13/2023] Open
Abstract
The gut microbiome is associated with survival in colorectal cancer. Single organisms have been identified as markers of poor prognosis. However, in situ imaging of tumors demonstrate a polymicrobial tumor-associated community. To understand the role of these polymicrobial communities in survival, we conducted a nested case-control study in late-stage cancer patients undergoing resection for primary adenocarcinoma. The microbiome of paired tumor and adjacent normal tissue samples was profiled using 16S rRNA sequencing. We found a consistent difference in the microbiome between paired tumor and adjacent tissue, despite strong individual microbial identities. Furthermore, a larger difference between normal and tumor tissue was associated with prognosis: patients with shorter survival had a larger difference between normal and tumor tissue. Within the tumor tissue, we identified a 39-member community statistic associated with survival; for every log2-fold increase in this value, an individual's odds of survival increased by 20% (odds ratio survival 1.20; 95% confidence interval = 1.04 to 1.33). Our results suggest that a polymicrobial tumor-specific microbiome is associated with survival in late-stage colorectal cancer patients. IMPORTANCE Microbiome studies in colorectal cancer (CRC) have primarily focused on the role of single organisms in cancer progression. Recent work has identified specific organisms throughout the intestinal tract, which may affect survival; however, the results are inconsistent. We found differences between the tumor microbiome and the microbiome of the rest of the intestine in patients, and the magnitude of this difference was associated with survival, or, the more like a healthy gut a tumor looked, the better a patient's prognosis. Our results suggest that future microbiome-based interventions to affect survival in CRC will need to target the tumor community.
Collapse
Affiliation(s)
- Justine W. Debelius
- Centre for Translational Microbiome Research, Department of Microbiology, Tumor, and Cell Biology, Karolinska Institutet, Solna, Sweden
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Lars Engstrand
- Centre for Translational Microbiome Research, Department of Microbiology, Tumor, and Cell Biology, Karolinska Institutet, Solna, Sweden
| | - Andreas Matussek
- Laboratory Medicine, Jönköping Region County, Department of Clinical and Experimental Medicine, Linköping University, Jönköping, Sweden
- Division of Laboratory Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Microbiology, Division of Laboratory Medicine, Oslo University Hospital, Oslo, Norway
| | - Nele Brusselaers
- Centre for Translational Microbiome Research, Department of Microbiology, Tumor, and Cell Biology, Karolinska Institutet, Solna, Sweden
- Global Health Institute, Antwerp University, Antwerp, Belgium
- Department of Head and Skin, Ghent University, Ghent, Belgium
| | - James T. Morton
- Biostatistics and Bioinformatics Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA
| | - Margaretha Stenmarker
- Futurum/Department of Pediatrics, Jönköping Region County, Jönköping, Sweden
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
- Institute of Clinical Sciences, Department of Paediatrics, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Renate S. Olsen
- Centre for Translational Microbiome Research, Department of Microbiology, Tumor, and Cell Biology, Karolinska Institutet, Solna, Sweden
- Pathology Laboratory, Department of Laboratory Medicine, Jönköping Region County, Jönköping, Sweden
- Department of Pathology, Division of Laboratory Medicine, Oslo University Hospital, Norwegian Radium Hospital, Oslo, Norway
| |
Collapse
|
4
|
Stiernborg M, Debelius JW, Yang LL, Skott E, Millischer V, Giacobini M, Melas PA, Boulund F, Lavebratt C. Bacterial gut microbiome differences in adults with ADHD and in children with ADHD on psychostimulant medication. Brain Behav Immun 2023; 110:310-321. [PMID: 36940753 DOI: 10.1016/j.bbi.2023.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 02/11/2023] [Accepted: 03/16/2023] [Indexed: 03/23/2023] Open
Abstract
Recent evidence suggests that there is a link between neurodevelopmental disorders, such as attention deficit hyperactivity disorder (ADHD), and the gut microbiome. However, most studies to date have had low sample sizes, have not investigated the impact of psychostimulant medication, and have not adjusted for potential confounders, including body mass index, stool consistency and diet. To this end, we conducted the largest, to our knowledge, fecal shotgun metagenomic sequencing study in ADHD, with 147 well-characterized adult and child patients. For a subset of individuals, plasma levels of inflammatory markers and short-chain fatty acids were also measured. In adult ADHD patients (n=84), compared to controls (n=52), we found a significant difference in beta diversity both regarding bacterial strains (taxonomic) and bacterial genes (functional). In children with ADHD (n=63), we found that those on psychostimulant medication (n=33 on medication vs. n=30 not on medication) had (i) significantly different taxonomic beta diversity, (ii) lower functional and taxonomic evenness, (iii) lower abundance of the strain Bacteroides stercoris CL09T03C01 and bacterial genes encoding an enzyme in vitamin B12 synthesis, and (iv) higher plasma levels of vascular inflammatory markers sICAM-1 and sVCAM-1. Our study continues to support a role for the gut microbiome in neurodevelopmental disorders and provides additional insights into the effects of psychostimulant medication. However, additional studies are needed to replicate these findings and examine causal relationships with the disorder.
Collapse
Affiliation(s)
- Miranda Stiernborg
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Center for Molecular Medicine, Karolinska University Hospital Solna, Stockholm, Sweden
| | - J W Debelius
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; The Centre for Translational Microbiome Research (CTMR), Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Liu L Yang
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Center for Molecular Medicine, Karolinska University Hospital Solna, Stockholm, Sweden; Department of Neurology, Huazhong University of Science and Technology, Tongji Medical College, Union Hospital, Wuhan, China
| | - Elin Skott
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Center for Molecular Medicine, Karolinska University Hospital Solna, Stockholm, Sweden; PRIMA Child and Adult Psychiatry, Stockholm, Sweden
| | - Vincent Millischer
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - MaiBritt Giacobini
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; PRIMA Child and Adult Psychiatry, Stockholm, Sweden
| | - Philippe A Melas
- Center for Molecular Medicine, Karolinska University Hospital Solna, Stockholm, Sweden; Center for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Stockholm, Sweden
| | - Fredrik Boulund
- The Centre for Translational Microbiome Research (CTMR), Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Catharina Lavebratt
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Center for Molecular Medicine, Karolinska University Hospital Solna, Stockholm, Sweden.
| |
Collapse
|
5
|
Liao Y, Zhang JB, Lu LX, Jia YJ, Zheng MQ, Debelius JW, He YQ, Wang TM, Deng CM, Tong XT, Xue WQ, Cao LJ, Wu ZY, Yang DW, Zheng XH, Li XZ, Wu YX, Feng L, Ye W, Mu J, Jia WH. Oral Microbiota Alteration and Roles in Epstein-Barr Virus Reactivation in Nasopharyngeal Carcinoma. Microbiol Spectr 2023; 11:e0344822. [PMID: 36645283 PMCID: PMC9927204 DOI: 10.1128/spectrum.03448-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 11/16/2022] [Indexed: 01/17/2023] Open
Abstract
Microbiota has recently emerged as a critical factor associated with multiple malignancies. Nasopharyngeal carcinoma (NPC) is highly associated with Epstein-Barr virus (EBV); the oncovirus resides and is transmitted in the oral cavity. However, the alternation of oral microbiota in NPC patients and its potential link to EBV reactivation and host cell response under the simultaneous existence of EBV and specific bacteria is largely unknown. Here, oral microbiota profiles of 303 NPC patients and controls with detailed clinical information, including serum EBV anti-virus capsid antigen (VCA) IgA level, were conducted. A distinct microbial community with lower diversity and imbalanced composition in NPC patients was observed. Notably, among enriched bacteria in patients, Streptococcus sanguinis was associated with anti-VCA IgA, an indicator of NPC risk and EBV reactivation. By measuring the concentration of its metabolite, hydrogen peroxide (H2O2), in the saliva of clinical patients, we found the detection rate of H2O2 was 2-fold increased compared to healthy controls. Further coculture assay of EBV-positive Akata cells with bacteria in vitro showed that S. sanguinis induced EBV lytic activation by its metabolite, H2O2. Host and EBV whole genome-wide transcriptome sequencing and EBV methylation assays showed that H2O2 triggered the host cell signaling pathways, notably tumor necrosis factor alpha (TNF-α) via NF-κB, and induced the demethylation of the global EBV genome and the expression of EBV lytic-associated genes, which could result in an increase of virus particle release and potential favorable events toward tumorigenesis. In brief, our study identified a characterized oral microbial profile in NPC patients and established a robust link between specific oral microbial alteration and switch of latency to lytic EBV infection status in the oral cavity, which provides novel insights into EBV's productive cycle and might help to further clarify the etiology of NPC. IMPORTANCE EBV is classified as the group I human carcinogen and is associated with multiple cancers, including NPC. The interplays between the microbiota and oncovirus in cancer development remain largely unknown. In this study, we investigate the interactions between resident microbes and EBV coexistence in the oral cavity of NPC patients. We identify a distinct oral microbial feature for NPC patients. Among NPC-enriched bacteria, we illustrated that a specific species, S. sanguinis, associated with elevated anti-IgA VCA in patients, induced EBV lytic activation by its by-product, H2O2, and activated the TNF-α/NF-κB pathway of EBV-positive B cells in vitro, together with increased detection rate of H2O2 in patients' oral cavities, which strengthened the evidence of bacteria-virus-host interaction in physiological circumstances. The effects of imbalanced microbiota on the EBV latent-to-lytic switch in the oral cavity might create the likelihood of EBV infection in epithelial cells at the nasopharynx and help malignant transition and cancer development.
Collapse
Affiliation(s)
- Ying Liao
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Jiang-Bo Zhang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Li-Xia Lu
- Department of Radiation Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yi-Jing Jia
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
- School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Mei-Qi Zheng
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Justine W. Debelius
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Yong-Qiao He
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Tong-Min Wang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Chang-Mi Deng
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Xia-Ting Tong
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
- School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Wen-Qiong Xue
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Lian-Jing Cao
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Zi-Yi Wu
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Da-Wei Yang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
- School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Xiao-Hui Zheng
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Xi-Zhao Li
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Yan-Xia Wu
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Lin Feng
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Weimin Ye
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Jianbing Mu
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, USA
| | - Wei-Hua Jia
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
- School of Public Health, Sun Yat-Sen University, Guangzhou, China
| |
Collapse
|
6
|
Gudnadottir U, Debelius JW, Du J, Hugerth LW, Danielsson H, Schuppe-Koistinen I, Fransson E, Brusselaers N. The vaginal microbiome and the risk of preterm birth: a systematic review and network meta-analysis. Sci Rep 2022; 12:7926. [PMID: 35562576 PMCID: PMC9106729 DOI: 10.1038/s41598-022-12007-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 05/04/2022] [Indexed: 02/02/2023] Open
Abstract
Preterm birth is a major cause of neonatal morbidity and mortality worldwide. Increasing evidence links the vaginal microbiome to the risk of spontaneous preterm labour that leads to preterm birth. The aim of this systematic review and network meta-analysis was to investigate the association between the vaginal microbiome, defined as community state types (CSTs, i.e. dominance of specific lactobacilli spp, or not (low-lactobacilli)), and the risk of preterm birth. Systematic review using PubMed, Web of Science, Embase and Cochrane library was performed. Longitudinal studies using culture-independent methods categorizing the vaginal microbiome in at least three different CSTs to assess the risk of preterm birth were included. A (network) meta-analysis was conducted, presenting pooled odds ratios (OR) and 95% confidence intervals (CI); and weighted proportions and 95% CI. All 17 studies were published between 2014 and 2021 and included 38-539 pregnancies and 8-107 preterm births. Women presenting with "low-lactobacilli" vaginal microbiome were at increased risk (OR 1.69, 95% CI 1.15-2.49) for delivering preterm compared to Lactobacillus crispatus dominant women. Our network meta-analysis supports the microbiome being predictive of preterm birth, where low abundance of lactobacilli is associated with the highest risk, and L. crispatus dominance the lowest.
Collapse
Affiliation(s)
- Unnur Gudnadottir
- Department of Microbiology, Tumor and Cell Biology (MTC), Centre for Translational Microbiome Research, Karolinska Institutet, Tomtebodavägen 16, 171 65, SolnaStockholm, Sweden.
| | - Justine W Debelius
- Department of Microbiology, Tumor and Cell Biology (MTC), Centre for Translational Microbiome Research, Karolinska Institutet, Tomtebodavägen 16, 171 65, SolnaStockholm, Sweden
| | - Juan Du
- Department of Microbiology, Tumor and Cell Biology (MTC), Centre for Translational Microbiome Research, Karolinska Institutet, Tomtebodavägen 16, 171 65, SolnaStockholm, Sweden
| | - Luisa W Hugerth
- Department of Microbiology, Tumor and Cell Biology (MTC), Centre for Translational Microbiome Research, Karolinska Institutet, Tomtebodavägen 16, 171 65, SolnaStockholm, Sweden.,Science for Life Laboratory, 171 65, Solna, Sweden
| | - Hanna Danielsson
- Department of Microbiology, Tumor and Cell Biology (MTC), Centre for Translational Microbiome Research, Karolinska Institutet, Tomtebodavägen 16, 171 65, SolnaStockholm, Sweden.,Sach's Children's and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Ina Schuppe-Koistinen
- Department of Microbiology, Tumor and Cell Biology (MTC), Centre for Translational Microbiome Research, Karolinska Institutet, Tomtebodavägen 16, 171 65, SolnaStockholm, Sweden.,Science for Life Laboratory, 171 65, Solna, Sweden
| | - Emma Fransson
- Department of Microbiology, Tumor and Cell Biology (MTC), Centre for Translational Microbiome Research, Karolinska Institutet, Tomtebodavägen 16, 171 65, SolnaStockholm, Sweden.,Department of Women's and Children's Health, Uppsala University, 751 85, Uppsala, Sweden
| | - Nele Brusselaers
- Department of Microbiology, Tumor and Cell Biology (MTC), Centre for Translational Microbiome Research, Karolinska Institutet, Tomtebodavägen 16, 171 65, SolnaStockholm, Sweden.,Global Health Institute, University of Antwerp, 2610, Antwerp, Belgium.,Department of Head and Skin, Ghent University, 9000, Ghent, Belgium
| |
Collapse
|
7
|
Du Y, Feng R, Chang ET, Debelius JW, Yin L, Xu M, Huang T, Zhou X, Xiao X, Li Y, Liao J, Zheng Y, Huang G, Adami HO, Zhang Z, Cai Y, Ye W. Influence of Pre-treatment Saliva Microbial Diversity and Composition on Nasopharyngeal Carcinoma Prognosis. Front Cell Infect Microbiol 2022; 12:831409. [PMID: 35392614 PMCID: PMC8981580 DOI: 10.3389/fcimb.2022.831409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Background The human microbiome has been reported to mediate the response to anticancer therapies. However, research about the influence of the oral microbiome on nasopharyngeal carcinoma (NPC) survival is lacking. We aimed to explore the effect of oral microbiota on NPC prognosis. Methods Four hundred eighty-two population-based NPC cases in southern China between 2010 and 2013 were followed for survival, and their saliva samples were profiled using 16s rRNA sequencing. We analyzed associations of the oral microbiome diversity with mortality from all causes and NPC. Results Within- and between-community diversities of saliva were associated with mortality with an average of 5.29 years follow-up. Lower Faith’s phylogenetic diversity was related to higher all-cause mortality [adjusted hazard ratio (aHR), 1.52 (95% confidence interval (CI), 1.06–2.17)] and NPC-specific mortality [aHR, 1.57 (95% CI, 1.07–2.29)], compared with medium diversity, but higher phylogenetic diversity was not protective. The third principal coordinate (PC3) identified from principal coordinates analysis (PCoA) on Bray–Curtis distance was marginally associated with reduced all-cause mortality [aHR, 0.85 (95% CI, 0.73–1.00)], as was the first principal coordinate (PC1) from PCoA on weighted UniFrac [aHR, 0.86 (95% CI, 0.74–1.00)], but neither was associated with NPC-specific mortality. PC3 from robust principal components analysis was associated with lower all-cause and NPC-specific mortalities, with HRs of 0.72 (95% CI, 0.61–0.85) and 0.71 (95% CI, 0.60–0.85), respectively. Conclusions Oral microbiome may be an explanatory factor for NPC prognosis. Lower within-community diversity was associated with higher mortality, and certain measures of between-community diversity were related to mortality. Specifically, candidate bacteria were not related to mortality, suggesting that observed associations may be due to global patterns rather than particular pathogens.
Collapse
Affiliation(s)
- Yun Du
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Ruimei Feng
- Department of Epidemiology and Health Statistics and Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Ellen T. Chang
- Exponent, Inc., Center for Health Sciences, Menlo Park, CA, United States
| | - Justine W. Debelius
- Centre for Translational Microbiome Research, Department of Microbiology, Tumor, and Cell Biology, Karolinska Institutet, Solna, Sweden
- Karolinska Institutet, Science for Life Laboratory, Solna, Sweden
| | - Li Yin
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Miao Xu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Tingting Huang
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Radiation Oncology Clinical Medical Research of Guangxi Medical University, Nanning, China
| | - Xiaoying Zhou
- Life Science Institute, Guangxi Medical University, Nanning, China
- Key Laboratory of High-Incidence-Tumor Prevention & Treatment (Guangxi Medical University), Ministry of Education, Nanning, China
| | - Xue Xiao
- Department of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yancheng Li
- Guangxi Health Commission Key Laboratory of Molecular Epidemiology of Nasopharyngeal Carcinoma, Wuzhou Red Cross Hospital, Wuzhou, China
| | - Jian Liao
- Cangwu Institute for Nasopharyngeal Carcinoma Control and Prevention, Wuzhou, China
| | - Yuming Zheng
- Guangxi Health Commission Key Laboratory of Molecular Epidemiology of Nasopharyngeal Carcinoma, Wuzhou Red Cross Hospital, Wuzhou, China
| | - Guangwu Huang
- Department of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Hans-Olov Adami
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Clinical Effectiveness Research Group, Institute of Health, University of Oslo, Oslo, Norway
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Zhe Zhang
- Department of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yonglin Cai
- Guangxi Health Commission Key Laboratory of Molecular Epidemiology of Nasopharyngeal Carcinoma, Wuzhou Red Cross Hospital, Wuzhou, China
| | - Weimin Ye
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- *Correspondence: Weimin Ye,
| |
Collapse
|
8
|
Abstract
Amyotrophic lateral sclerosis (ALS), characterized by a loss of motor neurons in the brain and spinal cord, is a relatively rare but currently incurable neurodegenerative disease. The global incidence of ALS is estimated as 1.75 per 100,000 person-years and the global prevalence is estimated as 4.1-8.4 per 100,000 individuals. Contributions from outside the central nervous system to the etiology of ALS have been increasingly recognized. Gut microbiome is one of the most quickly growing fields of research for ALS. In this article, we performed a comprehensive review of the results from existing animal and human studies, to provide an up-to-date summary of the current research on gut microbiome and ALS. In brief, we found relatively consistent results from animal studies, suggesting an altered gut microbiome composition in experimental ALS. Publication bias might however be a concern. Findings from human studies are largely inconclusive. A few animal and human studies demonstrated the usefulness of intervention with microbial-derived metabolites in modulating the disease progression of ALS. We discussed potential methodological concerns in these studies, including study design, statistical power, handling process of biospecimens and sequencing data, as well as statistical methods and interpretation of results. Finally, we made a few proposals for continued microbiome research in ALS, with the aim to provide valid, reproducible, and translatable findings.
Collapse
Affiliation(s)
- Jiangwei Sun
- Unit of Integrative Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Tingting Huang
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.,Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Justine W Debelius
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Fang Fang
- Unit of Integrative Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
9
|
Huang T, Debelius JW, Ploner A, Xiao X, Zhang T, Hu K, Zhang Z, Wang R, Ye W. Radiation Therapy-Induced Changes of the Nasopharyngeal Commensal Microbiome in Nasopharyngeal Carcinoma Patients. Int J Radiat Oncol Biol Phys 2020; 109:145-150. [PMID: 32866565 DOI: 10.1016/j.ijrobp.2020.08.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 08/11/2020] [Accepted: 08/23/2020] [Indexed: 12/17/2022]
Abstract
PURPOSE The human commensal microbiome has been suggested to be involved in the regulation of response to anticancer therapies. However, little is known regarding changes in commensal microbes in patients with cancer during radiation therapy. We conducted a prospective, longitudinal proof-of-concept cohort study with patients with newly diagnosed nasopharyngeal carcinoma (NPC) who underwent radiation therapy-based treatment. METHODS AND MATERIALS Nasopharyngeal swabs were collected before radiation therapy, twice per week during radiation therapy, and after radiation therapy. The nasopharyngeal microbiome was assessed using 16S rRNA amplicon sequencing. A patient's response to treatment was measured 3 months after the completion of radiation therapy as a short-term clinical outcome. In total, 39 NPC patients with 445 nasopharyngeal samples were analyzed. RESULTS There was stable temporal change in the community structure of the nasopharyngeal microbiome among patients with NPC during treatment (P = .0005). Among 73 abundant amplicon sequence variants (ASVs), 7 ASVs assigned to genus Corynebacterium decreased significantly during the treatment (W-statistic >80%); 23 ASVs showed statistically significant changes in the ratio of abundance between early and late responders during treatment (false discovery rate <0.05). CONCLUSIONS This study addressed stable temporal change in the nasopharyngeal microbiome among patients with NPC during radiation therapy-based treatment and provided preliminary evidence of an association with a short-term clinical outcome.
Collapse
Affiliation(s)
- Tingting Huang
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China; Radiation Oncology Clinical Medical Research Center of Guangxi, Nanning, Nanning, P. R. China
| | - Justine W Debelius
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Alexander Ploner
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Xiling Xiao
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China; Department of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China
| | - Tingting Zhang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China; Radiation Oncology Clinical Medical Research Center of Guangxi, Nanning, Nanning, P. R. China
| | - Kai Hu
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China; Radiation Oncology Clinical Medical Research Center of Guangxi, Nanning, Nanning, P. R. China
| | - Zhe Zhang
- Department of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China
| | - Rensheng Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China; Radiation Oncology Clinical Medical Research Center of Guangxi, Nanning, Nanning, P. R. China
| | - Weimin Ye
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
| |
Collapse
|
10
|
Debelius JW, Huang T, Cai Y, Ploner A, Barrett D, Zhou X, Xiao X, Li Y, Liao J, Zheng Y, Huang G, Adami HO, Zeng Y, Zhang Z, Ye W. Subspecies Niche Specialization in the Oral Microbiome Is Associated with Nasopharyngeal Carcinoma Risk. mSystems 2020; 5:e00065-20. [PMID: 32636333 PMCID: PMC7343305 DOI: 10.1128/msystems.00065-20] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 06/18/2020] [Indexed: 12/24/2022] Open
Abstract
Oral health and changes in the oral microbiome have been associated with both local and systemic cancer. Poor oral hygiene is a known risk factor for nasopharyngeal carcinoma (NPC), a virally associated head and neck cancer endemic to southern China. We explored the relationship between NPC and the oral microbiome using 16S rRNA sequencing in a study of 499 NPC patients and 495 population-based age and sex frequency-matched controls from an area of endemicity of Southern China. We found a significant reduction in community richness in cases compared to that in controls. Differences in the overall microbial community structure between cases and controls could not be explained by other potential confounders; disease status explained 5 times more variation in the unweighted UniFrac distance than the next most explanatory variable. In feature-based analyses, we identified a pair of coexcluding Granulicatella adiacens amplicon sequence variants (ASVs) which were strongly associated with NPC status and differed by a single nucleotide. The G. adiacens variant an individual carried was also associated with the overall microbial community based on beta diversity. Co-occurrence analysis suggested the two G. adiacens ASVs sit at the center of two coexcluding clusters of closely related organisms. Our results suggest there are differences in the oral microbiomes between NPC patients and healthy controls, and these may be associated with both a loss of microbial diversity and niche specialization among closely related commensals.IMPORTANCE The relationship between oral health and the risk of nasopharyngeal carcinoma (NPC) was previously established. However, the role of oral microbiome has not been evaluated in the disease in a large epidemiological study. This paper clearly establishes a difference in the oral microbiomes between NPC patients and healthy controls which cannot be explained by other confounding factors. It furthermore identifies a pair of closely related coexcluding organisms associated with the disease, highlighting the importance of modern methods for single-nucleotide resolution in 16S rRNA sequence characterization. To the best of our knowledge, this is one of the first examples of cancer-associated niche specialization of the oral microbiome.
Collapse
Affiliation(s)
- Justine W Debelius
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Tingting Huang
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Yonglin Cai
- Department of Cancer Prevention Center, Wuzhou Red Cross Hospital, Wuzhou, People's Republic of China
- Wuzhou Health System Key Laboratory for Nasopharyngeal Carcinoma Etiology and Molecular Mechanism, Wuzhou, People's Republic of China
| | - Alexander Ploner
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Donal Barrett
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Xiaoying Zhou
- Life Science Institute, Guangxi Medical University, Nanning, People's Republic of China
- Key Laboratory of High-Incidence-Tumor Prevention & Treatment (Guangxi Medical University), Ministry of Education, Nanning, People's Republic of China
| | - Xue Xiao
- Department of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Yancheng Li
- Department of Cancer Prevention Center, Wuzhou Red Cross Hospital, Wuzhou, People's Republic of China
- Wuzhou Health System Key Laboratory for Nasopharyngeal Carcinoma Etiology and Molecular Mechanism, Wuzhou, People's Republic of China
| | - Jian Liao
- Cangwu Institute for Nasopharyngeal Carcinoma Control and Prevention, Wuzhou, People's Republic of China
| | - Yuming Zheng
- Department of Cancer Prevention Center, Wuzhou Red Cross Hospital, Wuzhou, People's Republic of China
- Wuzhou Health System Key Laboratory for Nasopharyngeal Carcinoma Etiology and Molecular Mechanism, Wuzhou, People's Republic of China
| | - Guangwu Huang
- Department of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Hans-Olov Adami
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Clinical Effectiveness Research Group, Institute of Health, University of Oslo, Oslo, Norway
| | - Yi Zeng
- State Key Laboratory for Infectious Diseases Prevention and Control, Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Zhe Zhang
- Department of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Weimin Ye
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
11
|
Sampson TR, Challis C, Jain N, Moiseyenko A, Ladinsky MS, Shastri GG, Thron T, Needham BD, Horvath I, Debelius JW, Janssen S, Knight R, Wittung-Stafshede P, Gradinaru V, Chapman M, Mazmanian SK. A gut bacterial amyloid promotes α-synuclein aggregation and motor impairment in mice. eLife 2020; 9:53111. [PMID: 32043464 PMCID: PMC7012599 DOI: 10.7554/elife.53111] [Citation(s) in RCA: 207] [Impact Index Per Article: 51.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 01/23/2020] [Indexed: 12/14/2022] Open
Abstract
Amyloids are a class of protein with unique self-aggregation properties, and their aberrant accumulation can lead to cellular dysfunctions associated with neurodegenerative diseases. While genetic and environmental factors can influence amyloid formation, molecular triggers and/or facilitators are not well defined. Growing evidence suggests that non-identical amyloid proteins may accelerate reciprocal amyloid aggregation in a prion-like fashion. While humans encode ~30 amyloidogenic proteins, the gut microbiome also produces functional amyloids. For example, curli are cell surface amyloid proteins abundantly expressed by certain gut bacteria. In mice overexpressing the human amyloid α-synuclein (αSyn), we reveal that colonization with curli-producing Escherichia coli promotes αSyn pathology in the gut and the brain. Curli expression is required for E. coli to exacerbate αSyn-induced behavioral deficits, including intestinal and motor impairments. Purified curli subunits accelerate αSyn aggregation in biochemical assays, while oral treatment of mice with a gut-restricted amyloid inhibitor prevents curli-mediated acceleration of pathology and behavioral abnormalities. We propose that exposure to microbial amyloids in the gastrointestinal tract can accelerate αSyn aggregation and disease in the gut and the brain.
Collapse
Affiliation(s)
- Timothy R Sampson
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Collin Challis
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Neha Jain
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, United States
| | - Anastasiya Moiseyenko
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Mark S Ladinsky
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Gauri G Shastri
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Taren Thron
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Brittany D Needham
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Istvan Horvath
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Justine W Debelius
- Department of Pediatrics, University of California, San Diego, San Diego, United States
| | - Stefan Janssen
- Department of Pediatrics, University of California, San Diego, San Diego, United States
| | - Rob Knight
- Department of Pediatrics, University of California, San Diego, San Diego, United States.,Department of Computer Science and Engineering, University of California, San Diego, San Diego, United States
| | | | - Viviana Gradinaru
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Matthew Chapman
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, United States
| | - Sarkis K Mazmanian
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, United States
| |
Collapse
|
12
|
Abstract
Microbes affect drug responses, but mechanisms remain elusive. Two papers in Cell exploit C. elegans to infer anticancer drug mechanisms. Through high-throughput screens of drug-microbe-host interactions, García-González et al. (2017) and Scott et al. (2017) determine that bacterial metabolism underpins fluoropyrimidine cytotoxicity, providing a paradigm for unraveling bacterial mechanisms in drug metabolism.
Collapse
Affiliation(s)
- Alison Vrbanac
- Department of Pediatrics, University of California, San Diego, La Jolla, CA 92093, USA
| | - Justine W Debelius
- Department of Pediatrics, University of California, San Diego, La Jolla, CA 92093, USA
| | - Lingjing Jiang
- Department of Pediatrics, University of California, San Diego, La Jolla, CA 92093, USA
| | - James T Morton
- Department of Pediatrics, University of California, San Diego, La Jolla, CA 92093, USA
| | - Pieter Dorrestein
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA 92093, USA; Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA 92093, USA
| | - Rob Knight
- Department of Pediatrics, University of California, San Diego, La Jolla, CA 92093, USA; Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA 92093, USA; Department of Computer Science and Engineering, University of California, San Diego, La Jolla, CA 92093, USA.
| |
Collapse
|
13
|
Abstract
Over the past few years, microbiome research has dramatically reshaped our understanding of human biology. New insights range from an enhanced understanding of how microbes mediate digestion and disease processes (e.g., in inflammatory bowel disease) to surprising associations with Parkinson's disease, autism, and depression. In this review, we describe how new generations of sequencing technology, analytical advances coupled to new software capabilities, and the integration of animal model data have led to these new discoveries. We also discuss the prospects for integrating studies of the microbiome, metabolome, and immune system, with the goal of elucidating mechanisms that govern their interactions. This systems-level understanding will change how we think about ourselves as organisms.
Collapse
Affiliation(s)
- Rob Knight
- Department of Pediatrics, University of California, San Diego, La Jolla, California 92093; .,Department of Computer Science and Engineering, University of California, San Diego, La Jolla, California 92093.,Center for Microbiome Innovation, University of California, San Diego, La Jolla, California 92093
| | - Chris Callewaert
- Department of Pediatrics, University of California, San Diego, La Jolla, California 92093; .,Center for Microbial Ecology and Technology, Ghent University, 9000 Ghent, Belgium
| | - Clarisse Marotz
- Department of Pediatrics, University of California, San Diego, La Jolla, California 92093;
| | - Embriette R Hyde
- Department of Pediatrics, University of California, San Diego, La Jolla, California 92093;
| | - Justine W Debelius
- Department of Pediatrics, University of California, San Diego, La Jolla, California 92093;
| | - Daniel McDonald
- Department of Pediatrics, University of California, San Diego, La Jolla, California 92093;
| | - Mitchell L Sogin
- Josephine Bay Paul Center, Marine Biological Laboratory, Woods Hole, Massachusetts 02543
| |
Collapse
|
14
|
Hill-Burns EM, Debelius JW, Morton JT, Wissemann WT, Lewis MR, Wallen ZD, Peddada SD, Factor SA, Molho E, Zabetian CP, Knight R, Payami H. Parkinson's disease and Parkinson's disease medications have distinct signatures of the gut microbiome. Mov Disord 2017; 32:739-749. [PMID: 28195358 DOI: 10.1002/mds.26942] [Citation(s) in RCA: 538] [Impact Index Per Article: 76.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 01/06/2017] [Accepted: 01/11/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND There is mounting evidence for a connection between the gut and Parkinson's disease (PD). Dysbiosis of gut microbiota could explain several features of PD. OBJECTIVE The objective of this study was to determine if PD involves dysbiosis of gut microbiome, disentangle effects of confounders, and identify candidate taxa and functional pathways to guide research. METHODS A total of 197 PD cases and 130 controls were studied. Microbial composition was determined by 16S rRNA gene sequencing of DNA extracted from stool. Metadata were collected on 39 potential confounders including medications, diet, gastrointestinal symptoms, and demographics. Statistical analyses were conducted while controlling for potential confounders and correcting for multiple testing. We tested differences in the overall microbial composition, taxa abundance, and functional pathways. RESULTS Independent microbial signatures were detected for PD (P = 4E-5), participants' region of residence within the United States (P = 3E-3), age (P = 0.03), sex (P = 1E-3), and dietary fruits/vegetables (P = 0.01). Among patients, independent signals were detected for catechol-O-methyltransferase-inhibitors (P = 4E-4), anticholinergics (P = 5E-3), and possibly carbidopa/levodopa (P = 0.05). We found significantly altered abundances of the Bifidobacteriaceae, Christensenellaceae, [Tissierellaceae], Lachnospiraceae, Lactobacillaceae, Pasteurellaceae, and Verrucomicrobiaceae families. Functional predictions revealed changes in numerous pathways, including the metabolism of plant-derived compounds and xenobiotics degradation. CONCLUSION PD is accompanied by dysbiosis of gut microbiome. Results coalesce divergent findings of prior studies, reveal altered abundance of several taxa, nominate functional pathways, and demonstrate independent effects of PD medications on the microbiome. The findings provide new leads and testable hypotheses on the pathophysiology and treatment of PD. © 2017 International Parkinson and Movement Disorder Society.
Collapse
Affiliation(s)
- Erin M Hill-Burns
- Department of Neurology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Justine W Debelius
- Department of Pediatrics, University of California San Diego, La Jolla, California, USA
| | - James T Morton
- Department of Computer Science and Engineering, University of California San Diego, La Jolla, California, USA
| | - William T Wissemann
- Department of Neurology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Matthew R Lewis
- Department of Neurology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Zachary D Wallen
- Department of Neurology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Shyamal D Peddada
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Stewart A Factor
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Eric Molho
- Department of Neurology, Albany Medical College, Albany, New York, USA
| | - Cyrus P Zabetian
- Veterans Affairs Puget Sound Health Care System and Department of Neurology, University of Washington, Seattle, Washington, USA
| | - Rob Knight
- Department of Pediatrics, University of California San Diego, La Jolla, California, USA.,Department of Computer Science and Engineering, University of California San Diego, La Jolla, California, USA.,Center for Microbiome Innovation, University of California San Diego, La Jolla, California, USA
| | - Haydeh Payami
- Department of Neurology, University of Alabama at Birmingham, Birmingham, Alabama, USA.,Center for Genomic Medicine, HudsonAlpha Institute for Biotechnology, Huntsville, Alabama, USA
| |
Collapse
|
15
|
Schall KA, Holoyda KA, Isani M, Schlieve C, Salisbury T, Khuu T, Debelius JW, Moats RA, Pollack HA, Lien CL, Fowler K, Hou X, Knight R, Grikscheit TC. Intestinal adaptation in proximal and distal segments: Two epithelial responses diverge after intestinal separation. Surgery 2016; 161:1016-1027. [PMID: 28011012 DOI: 10.1016/j.surg.2016.10.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 09/30/2016] [Accepted: 10/20/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND In short bowel syndrome, luminal factors influence adaptation in which the truncated intestine increases villus lengths and crypt depths to increase nutrient absorption. No study has evaluated the effect of adaptation within the distal intestine after intestinal separation. We evaluated multiple conditions, including Igf1r inhibition, in proximal and distal segments after intestinal resection to evaluate the epithelial effects of the absence of mechanoluminal stimulation. METHODS Short bowel syndrome was created in adult male zebrafish by performing a proximal stoma with ligation of the distal intestine. These zebrafish with short bowel syndrome were compared to sham-operated zebrafish. Groups were treated with the Igf1r inhibitor NVP-AEW541, DMSO, a vehicle control, or water for 2 weeks. Proximal and distal intestine were analyzed by hematoxylin and eosin for villus epithelial circumference, inner epithelial perimeter, and circumference. We evaluated BrdU+ cells, including costaining for β-catenin, and the microbiome was evaluated for changes. Reverse transcription quantitative polymerase chain reaction was performed for β-catenin, CyclinD1, Sox9a, Sox9b, and c-Myc. RESULTS Proximal intestine demonstrated significantly increased adaptation compared to sham-operated proximal intestine, whereas the distal intestine showed no adaptation in the absence of luminal flow. Addition of the Igf1r inhibitor resulted in decreased adaption in the distal intestine but an increase in distal proliferative cells and proximal β-catenin expression. While some proximal proliferative cells in short bowel syndrome colocalized β-catenin and BrdU, the distal proliferative cells did not co-stain for β-catenin. Sox9a increased in the distal limb after division but not after inhibition with the Igf1r inhibitor. There was no difference in alpha diversity or species richness of the microbiome between all groups. CONCLUSION Luminal flow in conjunction with short bowel syndrome significantly increases intestinal adaption within the proximal intestine in which proliferative cells contain β-catenin. Addition of an Igf1r inhibitor decreases adaptation in both proximal and distal limbs while increasing distal proliferative cells that do not colocalize β-catenin. Igf1r inhibition abrogates the increase in distal Sox9a expression that otherwise occurs in short bowel syndrome. Mechanoluminal flow is an important stimulus for intestinal adaptation.
Collapse
Affiliation(s)
- Kathy A Schall
- Division of Pediatric Surgery and Developmental Biology and Regenerative Medicine, Saban Research Institute, Children's Hospital Los Angeles and USC Keck School of Medicine, Los Angeles, CA
| | - Kathleen A Holoyda
- Division of Pediatric Surgery and Developmental Biology and Regenerative Medicine, Saban Research Institute, Children's Hospital Los Angeles and USC Keck School of Medicine, Los Angeles, CA
| | - Mubina Isani
- Division of Pediatric Surgery and Developmental Biology and Regenerative Medicine, Saban Research Institute, Children's Hospital Los Angeles and USC Keck School of Medicine, Los Angeles, CA
| | - Christopher Schlieve
- Division of Pediatric Surgery and Developmental Biology and Regenerative Medicine, Saban Research Institute, Children's Hospital Los Angeles and USC Keck School of Medicine, Los Angeles, CA
| | - Tasha Salisbury
- Department of Radiology, USC Keck School of Medicine, The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, CA
| | - Thien Khuu
- Department of Radiology, USC Keck School of Medicine, The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, CA
| | - Justine W Debelius
- Department of Pediatrics, University of California San Diego, La Jolla, CA
| | - Rex A Moats
- Department of Radiology, USC Keck School of Medicine, The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, CA
| | - Harvey A Pollack
- Department of Radiology, USC Keck School of Medicine, The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, CA
| | - Ching-Ling Lien
- Division of Cardiothoracic Surgery, Saban Research Institute, Children's Hospital Los Angeles and USC Keck School of Medicine, Los Angeles, CA
| | - Kathryn Fowler
- Division of Pediatric Surgery and Developmental Biology and Regenerative Medicine, Saban Research Institute, Children's Hospital Los Angeles and USC Keck School of Medicine, Los Angeles, CA
| | - Xiaogang Hou
- Division of Pediatric Surgery and Developmental Biology and Regenerative Medicine, Saban Research Institute, Children's Hospital Los Angeles and USC Keck School of Medicine, Los Angeles, CA
| | - Rob Knight
- Department of Computer Science and Engineering, University of California San Diego, La Jolla, CA
| | - Tracy C Grikscheit
- Division of Pediatric Surgery and Developmental Biology and Regenerative Medicine, Saban Research Institute, Children's Hospital Los Angeles and USC Keck School of Medicine, Los Angeles, CA.
| |
Collapse
|
16
|
Sampson TR, Debelius JW, Thron T, Janssen S, Shastri GG, Ilhan ZE, Challis C, Schretter CE, Rocha S, Gradinaru V, Chesselet MF, Keshavarzian A, Shannon KM, Krajmalnik-Brown R, Wittung-Stafshede P, Knight R, Mazmanian SK. Gut Microbiota Regulate Motor Deficits and Neuroinflammation in a Model of Parkinson's Disease. Cell 2016; 167:1469-1480.e12. [PMID: 27912057 PMCID: PMC5718049 DOI: 10.1016/j.cell.2016.11.018] [Citation(s) in RCA: 2001] [Impact Index Per Article: 250.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 10/12/2016] [Accepted: 11/10/2016] [Indexed: 02/06/2023]
Abstract
The intestinal microbiota influence neurodevelopment, modulate behavior, and contribute to neurological disorders. However, a functional link between gut bacteria and neurodegenerative diseases remains unexplored. Synucleinopathies are characterized by aggregation of the protein α-synuclein (αSyn), often resulting in motor dysfunction as exemplified by Parkinson's disease (PD). Using mice that overexpress αSyn, we report herein that gut microbiota are required for motor deficits, microglia activation, and αSyn pathology. Antibiotic treatment ameliorates, while microbial re-colonization promotes, pathophysiology in adult animals, suggesting that postnatal signaling between the gut and the brain modulates disease. Indeed, oral administration of specific microbial metabolites to germ-free mice promotes neuroinflammation and motor symptoms. Remarkably, colonization of αSyn-overexpressing mice with microbiota from PD-affected patients enhances physical impairments compared to microbiota transplants from healthy human donors. These findings reveal that gut bacteria regulate movement disorders in mice and suggest that alterations in the human microbiome represent a risk factor for PD.
Collapse
Affiliation(s)
- Timothy R Sampson
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
| | - Justine W Debelius
- Department of Pediatrics, University of California, San Diego, San Diego, CA 92110, USA
| | - Taren Thron
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Stefan Janssen
- Department of Pediatrics, University of California, San Diego, San Diego, CA 92110, USA
| | - Gauri G Shastri
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Zehra Esra Ilhan
- Swette Center for Environmental Biotechnology, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Collin Challis
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Catherine E Schretter
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Sandra Rocha
- Biology and Biological Engineering Department, Chalmers University of Technology, Gothenburg 41296, Sweden
| | - Viviana Gradinaru
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | | | - Ali Keshavarzian
- Department of Internal Medicine, Division of Gastroenterology, Rush University Medical Center, Chicago, IL 60612, USA
| | - Kathleen M Shannon
- Department of Neurological Sciences, Section of Movement Disorders, Rush University Medical Center, Chicago, IL 60612, USA
| | - Rosa Krajmalnik-Brown
- Swette Center for Environmental Biotechnology, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Pernilla Wittung-Stafshede
- Biology and Biological Engineering Department, Chalmers University of Technology, Gothenburg 41296, Sweden
| | - Rob Knight
- Department of Pediatrics, University of California, San Diego, San Diego, CA 92110, USA; Department of Computer Science and Engineering, University of California, San Diego, San Diego, CA 92093, USA
| | - Sarkis K Mazmanian
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
| |
Collapse
|
17
|
Wieck MM, Debelius JW, Spurrier RG, Trecartin A, Knight R, Grikscheit TC. The pediatric intestinal mucosal microbiome remains altered after clinical resolution of inflammatory and ischemic disease. Surgery 2016; 160:350-8. [PMID: 27302104 DOI: 10.1016/j.surg.2016.05.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 04/15/2016] [Accepted: 05/05/2016] [Indexed: 12/27/2022]
Abstract
BACKGROUND The pediatric intestinal microbiome is impacted by many factors, including age, diet, antibiotics, and environment. We hypothesized that in operative patients, alterations to antibiotics and mechanoluminal stimulation would demonstrate measurable changes in the intestinal microbiome and that microbial diversity would be reduced without normal mechanoluminal stimulation and with prolonged antibiotic treatment. METHODS Bacterial 16s rRNA was extracted from swabbed samples of 43 intestines from 29 patients, aged 5 days to 13 years old. Swabs were obtained during initial resection or later stoma closure. Samples were compared using phylogenetic diversity whole tree alpha diversity and unweighted UniFrac distance beta diversity and by comparing significantly different taxonomic groups. RESULTS Microbial community structure varied significantly between obstructive and inflammatory diseases (P = .001), with an effect size of 0.99 (0.97, 1.00). This difference persisted even 6 weeks after return to health. Family Enterobacter and Clostridiaceae predominated in patients with necrotizing enterocolitis or focal intestinal perforation; patients with an obstructive pathology had an abundance of Bacteroides. Comparison of UniFrac distance between paired proximal and distal intestines demonstrated that paired samples were significantly closer than any other comparison. CONCLUSION In infants, inflammatory and ischemic intestinal pathologies treated with prolonged courses of antibiotics durably alter the intestinal mucosal microbiome. Diversion of mechanoluminal stimulation, however, does not.
Collapse
Affiliation(s)
- Minna M Wieck
- Division of Pediatric Surgery, Children's Hospital Los Angeles and USC Keck School of Medicine, Los Angeles, CA
| | | | - Ryan G Spurrier
- Division of Pediatric Surgery, Children's Hospital Los Angeles and USC Keck School of Medicine, Los Angeles, CA
| | - Andrew Trecartin
- Division of Pediatric Surgery, Children's Hospital Los Angeles and USC Keck School of Medicine, Los Angeles, CA
| | - Rob Knight
- Department of Pediatrics, University of California, San Diego, CA; Department of Computer Science & Engineering, University of California, San Diego, CA
| | - Tracy C Grikscheit
- Division of Pediatric Surgery, Children's Hospital Los Angeles and USC Keck School of Medicine, Los Angeles, CA.
| |
Collapse
|
18
|
Debelius JW, Vázquez-Baeza Y, McDonald D, Xu Z, Wolfe E, Knight R. Turning Participatory Microbiome Research into Usable Data: Lessons from the American Gut Project. J Microbiol Biol Educ 2016; 17:46-50. [PMID: 27047589 PMCID: PMC4798814 DOI: 10.1128/jmbe.v17i1.1034] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The role of the human microbiome is the subject of continued investigation resulting in increased understanding. However, current microbiome research has only scratched the surface of the variety of healthy microbiomes. Public participation in science through crowdsourcing and crowdfunding microbiome research provides a novel opportunity for both participants and investigators. However, turning participatory science into publishable data can be challenging. Clear communication with the participant base and among researchers can ameliorate some challenges. Three major aspects need to be considered: recruitment and ongoing interaction, sample collection, and data analysis. Usable data can be maximized through diligent participant interaction, careful survey design, and maintaining an open source pipeline. While participatory science will complement rather than replace traditional avenues, it presents new opportunities for studies in the microbiome and beyond.
Collapse
Affiliation(s)
| | - Yoshiki Vázquez-Baeza
- Department of Computer Science and Engineering, University of California, San Diego, CA 92093-0404
| | - Daniel McDonald
- Department of Pediatrics, University of California, San Diego, CA 92110
| | - Zhenjiang Xu
- Department of Pediatrics, University of California, San Diego, CA 92110
| | - Elaine Wolfe
- Department of Pediatrics, University of California, San Diego, CA 92110
| | - Rob Knight
- Department of Pediatrics, University of California, San Diego, CA 92110
- Department of Computer Science and Engineering, University of California, San Diego, CA 92093-0404
| |
Collapse
|
19
|
Wieck MM, Spurrier RG, Debelius JW, Knight R, Grikscheit TC. The intestinal microbiota of children does not differ significantly after resolution of infectious disease compared to obstructive disease. J Am Coll Surg 2015. [DOI: 10.1016/j.jamcollsurg.2015.08.204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
20
|
Neuman H, Debelius JW, Knight R, Koren O. Microbial endocrinology: the interplay between the microbiota and the endocrine system. FEMS Microbiol Rev 2015; 39:509-21. [PMID: 25701044 DOI: 10.1093/femsre/fuu010] [Citation(s) in RCA: 344] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2014] [Indexed: 12/27/2022] Open
Abstract
The new field of microbiome research studies the microbes within multicellular hosts and the many effects of these microbes on the host's health and well-being. We now know that microbes influence metabolism, immunity and even behavior. Essential questions, which are just starting to be answered, are what are the mechanisms by which these bacteria affect specific host characteristics. One important but understudied mechanism appears to involve hormones. Although the precise pathways of microbiota-hormonal signaling have not yet been deciphered, specific changes in hormone levels correlate with the presence of the gut microbiota. The microbiota produces and secretes hormones, responds to host hormones and regulates expression levels of host hormones. Here, we summarize the links between the endocrine system and the gut microbiota. We categorize these interactions by the different functions of the hormones, including those affecting behavior, sexual attraction, appetite and metabolism, gender and immunity. Future research in this area will reveal additional connections, and elucidate the pathways and consequences of bacterial interactions with the host endocrine system.
Collapse
Affiliation(s)
- Hadar Neuman
- Faculty of medicine, Bar-Ilan University, 1311502 Safed, Israel
| | - Justine W Debelius
- Department of Chemistry and Biochemistry and BioFrontiers Institute, University of Colorado at Boulder, Boulder, CO 80309, USA
| | - Rob Knight
- Department of Chemistry and Biochemistry and BioFrontiers Institute, University of Colorado at Boulder, Boulder, CO 80309, USA
| | - Omry Koren
- Faculty of medicine, Bar-Ilan University, 1311502 Safed, Israel
| |
Collapse
|
21
|
Lin P, Bach M, Asquith M, Lee AY, Akileswaran L, Stauffer P, Davin S, Pan Y, Cambronne ED, Dorris M, Debelius JW, Lauber CL, Ackermann G, Baeza YV, Gill T, Knight R, Colbert RA, Taurog JD, Van Gelder RN, Rosenbaum JT. HLA-B27 and human β2-microglobulin affect the gut microbiota of transgenic rats. PLoS One 2014; 9:e105684. [PMID: 25140823 PMCID: PMC4139385 DOI: 10.1371/journal.pone.0105684] [Citation(s) in RCA: 169] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 07/22/2014] [Indexed: 11/18/2022] Open
Abstract
The HLA-B27 gene is a major risk factor for clinical diseases including ankylosing spondylitis, acute anterior uveitis, reactive arthritis, and psoriatic arthritis, but its mechanism of risk enhancement is not completely understood. The gut microbiome has recently been shown to influence several HLA-linked diseases. However, the role of HLA-B27 in shaping the gut microbiome has not been previously investigated. In this study, we characterize the differences in the gut microbiota mediated by the presence of the HLA-B27 gene. We identified differences in the cecal microbiota of Lewis rats transgenic for HLA-B27 and human β2-microglobulin (hβ2m), compared with wild-type Lewis rats, using biome representational in situ karyotyping (BRISK) and 16S rRNA gene sequencing. 16S sequencing revealed significant differences between transgenic animals and wild type animals by principal coordinates analysis. Further analysis of the data set revealed an increase in Prevotella spp. and a decrease in Rikenellaceae relative abundance in the transgenic animals compared to the wild type animals. By BRISK analysis, species-specific differences included an increase in Bacteroides vulgatus abundance in HLA-B27/hβ2m and hβ2m compared to wild type rats. The finding that HLA-B27 is associated with altered cecal microbiota has not been shown before and can potentially provide a better understanding of the clinical diseases associated with this gene.
Collapse
Affiliation(s)
- Phoebe Lin
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States of America
- * E-mail:
| | - Mary Bach
- Division of Rheumatology, University of Washington, VA Medical Center, Seattle, Washington, United States of America
| | - Mark Asquith
- Division of Rheumatology, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Aaron Y. Lee
- Moorfield's Eye Institute of London, London, United Kingdom
| | - Lakshmi Akileswaran
- Department of Ophthalmology, University of Washington, Seattle, Washington, United States of America
| | - Patrick Stauffer
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Sean Davin
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Yuzhen Pan
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Eric D. Cambronne
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Martha Dorris
- Department of Rheumatology, University of Texas Southwestern, Dallas, Texas, United States of America
| | | | | | - Gail Ackermann
- University of Colorado Boulder, Boulder, Colorado, United States of America
| | - Yoshiki V. Baeza
- University of Colorado Boulder, Boulder, Colorado, United States of America
| | - Tejpal Gill
- Pediatric Translational Research Branch, National Institute of Arthritis, Musculoskeletal and Skin Diseases, National Institutes of Health, Baltimore, Maryland, United States of America
| | - Rob Knight
- University of Colorado Boulder, Boulder, Colorado, United States of America
- Howard Hughes Medical Institute, University of Colorado Boulder, Boulder, Colorado, United States of America
| | - Robert A. Colbert
- Pediatric Translational Research Branch, National Institute of Arthritis, Musculoskeletal and Skin Diseases, National Institutes of Health, Baltimore, Maryland, United States of America
| | - Joel D. Taurog
- Department of Rheumatology, University of Texas Southwestern, Dallas, Texas, United States of America
| | - Russell N. Van Gelder
- Department of Ophthalmology, University of Washington, Seattle, Washington, United States of America
| | - James T. Rosenbaum
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States of America
- Division of Rheumatology, Oregon Health & Science University, Portland, Oregon, United States of America
- Dever's Eye Institute, Portland, Oregon, United States of America
| |
Collapse
|