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Liu Y, Yu J, Yang Y, Han B, Wang Q, Du S. Investigating the causal relationship of gut microbiota with GERD and BE: a bidirectional mendelian randomization. BMC Genomics 2024; 25:471. [PMID: 38745153 PMCID: PMC11092028 DOI: 10.1186/s12864-024-10377-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 05/06/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Gut microbiota(GM) have been proven associated with lots of gastrointestinal diseases, but its causal relationship with Gastroesophageal reflux disease(GERD) and Barrett's esophagus(BE) hasn't been explored. We aimed to uncover the causal relation between GM and GERD/BE and potential mediators by utilizing Mendelian Randomization(MR) analysis. METHODS Summary statistics of GM(comprising 301 bacteria taxa and 205 metabolism pathways) were extracted from MiBioGen Consortium(N = 18,340) and Dutch Microbiome Project(N = 7,738), GERD and BE from a multitrait meta-analysis(NGERD=602,604, NBE=56,429). Bidirectional two-sample MR analysis and linkage disequilibrium score regression(LDSC) were used to explore the genetic correlation between GM and GERD/BE. Mediation MR analysis was performed for the risk factors of GERD/BE, including Body mass index(BMI), weight, type 2 diabetes, major depressive disorder(MDD), smoking initiation, alcohol consumption, and dietary intake(including carbohydrate, sugar, fat, protein intake), to detect the potential mediators between GM and GERD/BE. RESULTS 11 bacterial taxa and 13 metabolism pathways were found associated with GERD, and 18 taxa and 5 pathways exhibited causal relationship with BE. Mediation MR analysis suggested weight and BMI played a crucial role in these relationships. LDSC identified 1 taxon and 4 metabolism pathways related to GERD, and 1 taxon related to BE. Specie Faecalibacterium prausnitzii had a suggestive impact on both GERD(OR = 1.087, 95%CI = 1.01-1.17) and BE(OR = 1.388, 95%CI = 1.03-1.86) and LDSC had determined their correlation. Reverse MR indicated that BE impacted 10 taxa and 4 pathways. CONCLUSIONS This study established a causal link between gut microbiota and GERD/BE, and identified the probable mediators. It offers new insights into the role of gut microbiota in the development and progression of GERD and BE in the host.
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Affiliation(s)
- Yuan Liu
- Graduate School of Beijing, University of Chinese Medicine, Beijing, China
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing, China
| | - Jiali Yu
- Department of Gastroenterology, Chinese Academy of Medical Sciences & Peking Union Medical College, China-Japan Friendship Hospital(Institute of Clinical Medical Sciences), Beijing, China
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing, China
| | - Yuxiao Yang
- Department of Gastroenterology, Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing, China
| | - Bingyu Han
- Graduate School of Beijing, University of Chinese Medicine, Beijing, China
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing, China
| | - Qiao Wang
- Graduate School of Beijing, University of Chinese Medicine, Beijing, China
- Department of Traditional Chinese Medicine for Pulmonary Diseases, China-Japan Friendship Hospital, Beijing, China
| | - Shiyu Du
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing, China.
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2
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Ferrari S, Mulè S, Rosso G, Parini F, Galla R, Molinari C, Uberti F. An Innovative Probiotic-Based Supplement to Mitigate Molecular Factors Connected to Depression and Anxiety: An In Vitro Study. Int J Mol Sci 2024; 25:4774. [PMID: 38731995 PMCID: PMC11083558 DOI: 10.3390/ijms25094774] [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: 02/27/2024] [Revised: 04/15/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
The gut-brain axis is a bidirectional relationship between the microbiota and the brain; genes related to the brain and gut synaptic formation are similar. Research on the causal effects of gut microbiota on human behavior, brain development, and function, as well as the underlying molecular processes, has emerged in recent decades. Probiotics have been shown in several trials to help reduce anxiety and depressive symptoms. Because of this, probiotic combinations have been tested in in vitro models to see whether they might modulate the gut and alleviate depression and anxiety. Therefore, we sought to determine whether a novel formulation might affect the pathways controlling anxiety and depression states and alter gut barrier activities in a 3D model without having harmful side effects. Our findings indicate that B. bifidum novaBBF7 10 mg/mL, B. longum novaBLG2 5 mg/mL, and L. paracasei TJB8 10 mg/mL may influence the intestinal barrier and enhance the synthesis of short-chain fatty acids. Additionally, the probiotics studied did not cause neuronal damage and, in combination, exert a protective effect against the condition of anxiety and depression triggered by L-Glutamate. All these findings show that probiotics can affect gut function to alter the pathways underlying anxiety and depression.
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Affiliation(s)
- Sara Ferrari
- Laboratory of Physiology, Department for Sustainable Development and Ecological Transition, 13100 Vercelli, Italy (F.P.); (C.M.)
| | - Simone Mulè
- Laboratory of Physiology, Department for Sustainable Development and Ecological Transition, 13100 Vercelli, Italy (F.P.); (C.M.)
| | - Giorgia Rosso
- Laboratory of Physiology, Department for Sustainable Development and Ecological Transition, 13100 Vercelli, Italy (F.P.); (C.M.)
| | - Francesca Parini
- Laboratory of Physiology, Department for Sustainable Development and Ecological Transition, 13100 Vercelli, Italy (F.P.); (C.M.)
| | - Rebecca Galla
- Laboratory of Physiology, Department for Sustainable Development and Ecological Transition, 13100 Vercelli, Italy (F.P.); (C.M.)
- Noivita Srls, Spin Off of the University of Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
| | - Claudio Molinari
- Laboratory of Physiology, Department for Sustainable Development and Ecological Transition, 13100 Vercelli, Italy (F.P.); (C.M.)
| | - Francesca Uberti
- Laboratory of Physiology, Department for Sustainable Development and Ecological Transition, 13100 Vercelli, Italy (F.P.); (C.M.)
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3
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Meng H, Xu D, Wang Q, Liu L, Liu W, Wang J. Maintaining immune homeostasis with Coptis Chinensis water extract to mitigate sepsis severity via modulating gut microbiome and metabolism. J Pharm Biomed Anal 2023; 236:115719. [PMID: 37742503 DOI: 10.1016/j.jpba.2023.115719] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 09/06/2023] [Accepted: 09/11/2023] [Indexed: 09/26/2023]
Abstract
Sepsis arises from an uncontrolled inflammatory response to infection that can lead to organ failure. The gut microbiome is increasingly recognized as a key modulator of sepsis progression. This study investigated whether Coptis chinensis water extract (CCWE) could attenuate sepsis by modulating the gut microbiome and immune response. A rat model of sepsis induced by cecum ligation and perforation was used. 16 S ribosomal ribonucleic acid (rRNA) sequencing, proton nuclear magnetic resonance (1H NMR) metabolomics and flow cytometry assays were used to evaluate microbial, metabolic and immune profiles. CCWE treatment reversed sepsis-induced loss of beneficial bacteria like Firmicutes and Bacteroidetes and restored gut microbial balance. CCWE increased short-chain fatty acids, carnitine and phenylacetate, which provide energy and curb inflammation. By enhancing immune homeostasis and maintaining regulatory T cells (Tregs), CCWE treatment also exerted bidirectional regulation on T cells for initially suppressing hyperactivation then enabling recovery. Overall, CCWE may benefit sepsis by regulating the gut-microbiome-immune axis. By restoring microbiome balance, improving metabolism, and modulating immunity, CCWE treatment shows potential for alleviating sepsis severity and progression. The increases in beneficial bacteria, Tregs, and anti-inflammatory metabolites coupled with decreases in opportunistic pathogens likely contributed collectively to CCWE's protective effects. CCWE may emerge as an alternative or adjunctive option for managing disorders of dangerous inflammation like sepsis. Future research should explore CCWE's mechanisms of action clinically to determine its potential as a safe, effective means of modulating health through natural regulation of the gut microbiome and immune function.
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Affiliation(s)
- Huihui Meng
- Center of Molecular Metabolism, School of Environmental & Biological Engineering, Nanjing University of Science and Technology, No. 200 Xiaolingwei Street, Nanjing 210094, China
| | - Di Xu
- Center of Molecular Metabolism, School of Environmental & Biological Engineering, Nanjing University of Science and Technology, No. 200 Xiaolingwei Street, Nanjing 210094, China
| | - Qing Wang
- Department of Interventional Surgery, Zibo Central Hospital, No.54 Gongqingtuan Road (W), Zhangdian District, Zibo City, Shandong, China
| | - Lin Liu
- Department of Interventional Surgery, Zibo Central Hospital, No.54 Gongqingtuan Road (W), Zhangdian District, Zibo City, Shandong, China
| | - Wenya Liu
- Center of Molecular Metabolism, School of Environmental & Biological Engineering, Nanjing University of Science and Technology, No. 200 Xiaolingwei Street, Nanjing 210094, China
| | - Junsong Wang
- Center of Molecular Metabolism, School of Environmental & Biological Engineering, Nanjing University of Science and Technology, No. 200 Xiaolingwei Street, Nanjing 210094, China.
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4
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Ferrari S, Galla R, Mulè S, Rosso G, Brovero A, Macchi V, Ruga S, Uberti F. The Role of Bifidobacterium bifidum novaBBF7, Bifidobacterium longum novaBLG2 and Lactobacillus paracasei TJB8 to Improve Mechanisms Linked to Neuronal Cells Protection against Oxidative Condition in a Gut-Brain Axis Model. Int J Mol Sci 2023; 24:12281. [PMID: 37569657 PMCID: PMC10419296 DOI: 10.3390/ijms241512281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 07/27/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
Despite the identification of several innovative targets for avoiding cognitive decline, there has yet to be a widely accepted approach that deals with minimising the deterioration of cognitive function. In this light, recent studies suggest that regulating the gut-brain axis with probiotics is a potential therapeutic strategy to support brain health. For this reason, in vitro models were used to examine the efficacy of different probiotic combinations to enhance intestinal homeostasis and positively affect the brain. Therefore, the new formulation has been evaluated for its capacity to modify intestinal barrier functions in a 3D in vitro model without any adverse effects and directly impact the mechanisms underlying cognitive function in a gut-brain axis model. According to our findings, B. bifidum novaBBF7 10 mg/mL, B. longum novaBLG2 5 mg/mL and L. paracasei TJB8 10 mg/mL may successfully modify the intestinal barrier and improve SCFA production. Successively, the probiotics studied caused no harm at the neuronal level, as demonstrated by iNOS, mitochondrial potential, and cell viability tests, confirming their safety features and enhancing antioxidant mechanisms and antineuroinflammation activity. Additionally, the damage caused by oxidative stress was also healed, and critical pathways that result in cognitive impairment were changed by synergetic action, supporting the hypothesis that brain ageing and neurodegeneration are slowed down. All these findings demonstrate the ability of probiotics to affect cognitive processes and their ability to sustain the mechanisms underlying cognitive function by acting on intestinal function.
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Affiliation(s)
- Sara Ferrari
- Laboratory of Physiology, Department of Translational Medicine, University of Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
| | - Rebecca Galla
- Laboratory of Physiology, Department of Translational Medicine, University of Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
- Noivita Srls, Spin Off, University of Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
| | - Simone Mulè
- Laboratory of Physiology, Department of Translational Medicine, University of Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
| | - Giorgia Rosso
- Laboratory of Physiology, Department of Translational Medicine, University of Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
| | - Arianna Brovero
- Laboratory of Physiology, Department of Translational Medicine, University of Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
| | - Valentina Macchi
- Laboratory of Physiology, Department of Translational Medicine, University of Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
| | - Sara Ruga
- Noivita Srls, Spin Off, University of Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
| | - Francesca Uberti
- Laboratory of Physiology, Department of Translational Medicine, University of Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
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5
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Lu X, Xiong L, Zheng X, Yu Q, Xiao Y, Xie Y. Structure of gut microbiota and characteristics of fecal metabolites in patients with lung cancer. Front Cell Infect Microbiol 2023; 13:1170326. [PMID: 37577375 PMCID: PMC10415071 DOI: 10.3389/fcimb.2023.1170326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 07/14/2023] [Indexed: 08/15/2023] Open
Abstract
Objective The gut micro-biome plays a pivotal role in the progression of lung cancer. However, the specific mechanisms by which the intestinal microbiota and its metabolites are involved in the lung cancer process remain unclear. Method Stool samples from 52 patients with lung cancer and 29 healthy control individuals were collected and subjected to 16S rRNA gene amplification sequencing and non-targeted gas/liquid chromatography-mass spectrometry metabolomics analysis. Then microbiota, metabolites and potential signaling pathways that may play an important role in the disease were filtered. Results Firmicutes, Clostridia, Bacteroidacea, Bacteroides, and Lachnospira showed a greater abundance in healthy controls. In contrast, the Ruminococcus gnavus(R.gnavus) was significantly upregulated in lung cancer patients. In this respect, the micro-biome of the squamous cell carcinoma(SCC)group demonstrated a relatively higher abundance of Proteobacteria, Gammaproteobacteria, Bacteroides,and Enterobacteriaceae, as well as higher abundances of Fusicatenibacter and Roseburia in adenocarcinoma(ADC) group. Metabolomic analysis showed significant alterations in fecal metabolites including including quinic acid, 3-hydroxybenzoic acid,1-methylhydantoin,3,4-dihydroxydrocinnamic acid and 3,4-dihydroxybenzeneacetic acid were significantly altered in lung cancer patients. Additionally, the R.gnavus and Fusicatenibacter of lung cancer were associated with multiple metabolite levels. Conclusion Our study provides essential guidance for a fundamental systematic and multilevel assessment of the contribution of gut micro-biome and their metabolites in lung cancer,which has great potential for understanding the pathogenesis of lung cancer and for better early prevention and targeted interventions.
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Affiliation(s)
- Xingbing Lu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Li Xiong
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Xi Zheng
- Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Qiuju Yu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yuling Xiao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Xie
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
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6
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Johnson SD, Fox HS, Buch S, Byrareddy SN. Chronic Opioid Administration is Associated with Prevotella-dominated Dysbiosis in SIVmac251 Infected, cART-treated Macaques. J Neuroimmune Pharmacol 2022; 17:3-14. [PMID: 33788119 PMCID: PMC9969301 DOI: 10.1007/s11481-021-09993-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 03/25/2021] [Indexed: 12/31/2022]
Abstract
People living with the human immunodeficiency virus (HIV) have an elevated risk of opioid misuse due to both prescriptions for HIV-associated chronic pain and because injection drug use remains a primary mode of HIV transmission. HIV pathogenesis is characterized by chronic immune activation and microbial dysbiosis, and translocation across the gut barrier exacerbating inflammation. Despite the high rate of co-occurrence, little is known about the microbiome during chronic opioid use in the context of HIV and combination antiretroviral therapy (cART). We recently demonstrated the reduction of the CD4 + T-cell reservoir in lymphoid tissues but increased in microglia/macrophage reservoirs in CNS by using morphine-treated, simian immunodeficiency virus (SIV)-infected rhesus macaques with viremia suppressed by cART. To understand whether morphine may perturb the gut-brain axis, fecal samples were collected at necropsy, DNA isolated, and 16S rRNA sequenced and changes of the microbiome analyzed. We found that morphine treatment led to dysbiosis, primarily characterized by expansion of Bacteroidetes, particularly Prevotellaceae, at the expense of Firmicutes and other members of healthy microbial communities resulting in a lower α-diversity. Of the many genera in Prevotellaceae, the differences between the saline and morphine group were primarily due to a higher relative abundance of Prevotella_9, the taxa most similar to Prevotella copri, an inflammatory pathobiont in the human microbiome. These findings reinforce previous research showing that opioid abuse is associated with dysbiosis, therefore, warranting additional future research to elucidate the complex interaction between the host and opioid abuse during HIV and SIV infection.
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Affiliation(s)
- Samuel D Johnson
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Howard S Fox
- Department of Neurological Sciences, University of Nebraska Medical Center, Omaha, NE, USA
| | - Shilpa Buch
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Siddappa N Byrareddy
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA.
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, USA.
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA.
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7
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Abstract
Purpose of Review Observations of differing bacterial, intestinal microbiomes in people living with HIV have propelled interest in contributions of the microbiome to HIV disease. Non-human primate (NHP) models of HIV infection provide a controlled setting for assessing contributions of the microbiome by standardizing environmental confounders. We provide an overview of the findings of microbiome contributions to aspects of HIV disease derived from these animal models. Recent Findings Observations of differing bacterial, intestinal microbiomes are inconsistently observed in the NHP model following SIV infection. Differences in lentiviral susceptibility and vaccine efficacy have been attributed to variations in the intestinal microbiome; however, by-and-large, these differences have not been experimentally assessed. Summary Although compelling associations exist, clearly defined contributions of the microbiome to HIV and SIV disease are lacking. The empirical use of comprehensive multi-omics assessments and longitudinal and interventional study designs in NHP models is necessary to define this contribution more clearly.
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Affiliation(s)
- Jason M Brenchley
- Barrier Immunity Section, Laboratory of Viral Diseases, National Institutes of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, USA
| | - Alexandra M Ortiz
- Barrier Immunity Section, Laboratory of Viral Diseases, National Institutes of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, USA.
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8
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Tanes C, Walker EM, Slisarenko N, Gerrets GL, Grasperge BF, Qin X, Jazwinski SM, Bushman FD, Bittinger K, Rout N. Gut Microbiome Changes Associated with Epithelial Barrier Damage and Systemic Inflammation during Antiretroviral Therapy of Chronic SIV Infection. Viruses 2021; 13:1567. [PMID: 34452432 PMCID: PMC8402875 DOI: 10.3390/v13081567] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/01/2021] [Accepted: 08/05/2021] [Indexed: 12/26/2022] Open
Abstract
Gut dysbiosis is a common feature associated with the chronic inflammation of HIV infection. Toward understanding the interplay of chronic treated HIV infection, dysbiosis, and systemic inflammation, we investigated longitudinal fecal microbiome changes and plasma inflammatory markers in the nonhuman primate model. Following simian immunodeficiency virus (SIV) infection in rhesus macaques, significant changes were observed in several members of the phylum Firmicutes along with an increase in Bacteroidetes. Viral suppression with antiretroviral therapy (ART) resulted in an early but partial recovery of compositional changes and butyrate producing genes in the gut microbiome. Over the course of chronic SIV infection and long-term ART, however, the specific loss of Faecalibacterium prausnitzii and Treponema succinifaciens significantly correlated with an increase in plasma inflammatory cytokines including IL-6, G-CSF, I-TAC, and MIG. Further, the loss of T. succinifaciens correlated with an increase in circulating biomarkers of gut epithelial barrier damage (IFABP) and microbial translocation (LBP and sCD14). As F. prausnitzii and T. succinifaciens are major short-chain fatty acid producing bacteria, their sustained loss during chronic SV-ART may contribute to gut inflammation and metabolic alterations despite effective long-term control of viremia. A better understanding of the correlations between the anti-inflammatory bacterial community and healthy gut barrier functions in the setting of long-term ART may have a major impact on the clinical management of inflammatory comorbidities in HIV-infected individuals.
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Affiliation(s)
- Ceylan Tanes
- Division of Gastroenterology, Hepatology and Nutrition, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (C.T.); (K.B.)
| | - Edith M. Walker
- Division of Microbiology, Tulane National Primate Research Center, Tulane University, Covington, LA 70433, USA; (E.M.W.); (N.S.); (G.L.G.)
| | - Nadia Slisarenko
- Division of Microbiology, Tulane National Primate Research Center, Tulane University, Covington, LA 70433, USA; (E.M.W.); (N.S.); (G.L.G.)
| | - Giovanni L. Gerrets
- Division of Microbiology, Tulane National Primate Research Center, Tulane University, Covington, LA 70433, USA; (E.M.W.); (N.S.); (G.L.G.)
| | - Brooke F. Grasperge
- Division of Veterinary Medicine, Tulane National Primate Research Center, Tulane University, Covington, LA 70433, USA;
| | - Xuebin Qin
- Division of Comparative Pathology, Tulane National Primate Research Center, Tulane University, Covington, LA 70433, USA;
| | - S. Michal Jazwinski
- Tulane Center for Aging, Tulane University School of Medicine, New Orleans, LA 70112, USA;
| | - Frederic D. Bushman
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA;
| | - Kyle Bittinger
- Division of Gastroenterology, Hepatology and Nutrition, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (C.T.); (K.B.)
| | - Namita Rout
- Division of Microbiology, Tulane National Primate Research Center, Tulane University, Covington, LA 70433, USA; (E.M.W.); (N.S.); (G.L.G.)
- Tulane Center for Aging, Tulane University School of Medicine, New Orleans, LA 70112, USA;
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9
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Huang Y, Wang Z, Ma H, Ji S, Chen Z, Cui Z, Chen J, Tang S. Dysbiosis and Implication of the Gut Microbiota in Diabetic Retinopathy. Front Cell Infect Microbiol 2021; 11:646348. [PMID: 33816351 PMCID: PMC8017229 DOI: 10.3389/fcimb.2021.646348] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 03/02/2021] [Indexed: 12/16/2022] Open
Abstract
The pathogenesis of type 2 diabetes mellitus (T2DM) is commonly associated with altered gut bacteria. However, whether the microbial dysbiosis that exists in human diabetic patients with or without retinopathy is different remains largely unknown. Here, we collected clinical information and fecal samples from 75 participants, including 25 diabetic patients without retinopathy (DM), 25 diabetic patients with retinopathy (DR), and 25 healthy controls (HC). The gut microbial composition in the three groups was analyzed using 16S ribosomal RNA (rRNA) gene sequencing. Microbial structure and composition differed in the three groups. The α and β diversities in both the DM and DR groups were reduced compared with those in the HC group. Blautia was the most abundant genus, especially in the DM group. In addition, increased levels of Bifidobacterium and Lactobacillus and decreased levels of Escherichia-Shigella, Faecalibacterium, Eubacterium_hallii_group and Clostridium genera were observed in the DM and DR groups compared with the HC group. Furthermore, a biomarker set of 25 bacterial families, which could distinguish patients in the DR group from those in the DM and HC groups was identified, with the area under the curve values ranging from 0.69 to 0.85. Of note, Pasteurellaceae, which was increased in DM and decreased in DR compared with HC, generated a high AUC (0.74) as an individual predictive biomarker. Moreover, 14 family biomarkers were associated with fasting blood glucose levels or diabetes, with most of them being negatively correlated. In summary, our study establishes compositional alterations of gut microbiota in DM and DR, suggesting the potential use of gut microbiota as a non-invasive biomarker for clinical and differential diagnosis, as well as identifying potential therapeutic targets of diabetic retinopathy.
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Affiliation(s)
- Yinhua Huang
- Aier School of Ophthalmology, Central South University, Changsha, China.,Aier Eye Institute, Changsha, China
| | - Zhijie Wang
- Aier School of Ophthalmology, Central South University, Changsha, China.,Aier Eye Institute, Changsha, China
| | | | | | | | | | - Jiansu Chen
- Aier School of Ophthalmology, Central South University, Changsha, China.,Aier Eye Institute, Changsha, China.,Key Laboratory for Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China.,Institute of Ophthalmology, Medical College, Jinan University, Guangzhou, China
| | - Shibo Tang
- Aier School of Ophthalmology, Central South University, Changsha, China.,Aier Eye Institute, Changsha, China.,CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
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10
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Firmino JP, Vallejos-Vidal E, Balebona MC, Ramayo-Caldas Y, Cerezo IM, Salomón R, Tort L, Estevez A, Moriñigo MÁ, Reyes-López FE, Gisbert E. Diet, Immunity, and Microbiota Interactions: An Integrative Analysis of the Intestine Transcriptional Response and Microbiota Modulation in Gilthead Seabream ( Sparus aurata) Fed an Essential Oils-Based Functional Diet. Front Immunol 2021; 12:625297. [PMID: 33746962 PMCID: PMC7969985 DOI: 10.3389/fimmu.2021.625297] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/28/2021] [Indexed: 12/22/2022] Open
Abstract
Essential oils (EOs) are promising alternatives to chemotherapeutics in animal production due to their immunostimulant, antimicrobial, and antioxidant properties, without associated environmental or hazardous side effects. In the present study, the modulation of the transcriptional immune response (microarray analysis) and microbiota [16S Ribosomal RNA (rRNA) sequencing] in the intestine of the euryhaline fish gilthead seabream (Sparus aurata) fed a dietary supplementation of garlic, carvacrol, and thymol EOs was evaluated. The transcriptomic functional analysis showed the regulation of genes related to processes of proteolysis and inflammatory modulation, immunity, transport and secretion, response to cyclic compounds, symbiosis, and RNA metabolism in fish fed the EOs-supplemented diet. Particularly, the activation of leukocytes, such as acidophilic granulocytes, was suggested to be the primary actors of the innate immune response promoted by the tested functional feed additive in the gut. Fish growth performance and gut microbiota alpha diversity indices were not affected, while dietary EOs promoted alterations in bacterial abundances in terms of phylum, class, and genus. Subtle, but significant alterations in microbiota composition, such as the decrease in Bacteroidia and Clostridia classes, were suggested to participate in the modulation of the intestine transcriptional immune profile observed in fish fed the EOs diet. Moreover, regarding microbiota functionality, increased bacterial sequences associated with glutathione and lipid metabolisms, among others, detected in fish fed the EOs supported the metabolic alterations suggested to potentially affect the observed immune-related transcriptional response. The overall results indicated that the tested dietary EOs may promote intestinal local immunity through the impact of the EOs on the host-microbial co-metabolism and consequent regulation of significant biological processes, evidencing the crosstalk between gut and microbiota in the inflammatory regulation upon administration of immunostimulant feed additives.
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Affiliation(s)
- Joana P. Firmino
- IRTA, Centre de Sant Carles de la Ràpita (IRTA-SCR), Aquaculture Program, Sant Carles de la Ràpita, Spain
- TECNOVIT–FARMFAES, S.L. Alforja, Spain
- Ph.D. Program in Aquaculture, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Eva Vallejos-Vidal
- Departamento de Biología, Facultad de Química y Biología, Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, Santiago, Chile
| | - M. Carmen Balebona
- Department of Microbiology, Faculty of Science, University of Malaga, Málaga, Spain
| | - Yuliaxis Ramayo-Caldas
- Animal Breeding and Genetics Program, Institute of Agrifood Research and Technology, Torre Marimon, Caldes de Montbui, Spain
| | - Isabel M. Cerezo
- Department of Microbiology, Faculty of Science, University of Malaga, Málaga, Spain
| | - Ricardo Salomón
- IRTA, Centre de Sant Carles de la Ràpita (IRTA-SCR), Aquaculture Program, Sant Carles de la Ràpita, Spain
- Ph.D. Program in Aquaculture, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Lluis Tort
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Alicia Estevez
- IRTA, Centre de Sant Carles de la Ràpita (IRTA-SCR), Aquaculture Program, Sant Carles de la Ràpita, Spain
| | | | - Felipe E. Reyes-López
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Barcelona, Spain
- Facultad de Medicina Veterinaria y Agronomía, Universidad de Las Américas, Santiago, Chile
- Consorcio Tecnológico de Sanidad Acuícola, Ictio Biotechnologies S. A., Santiago, Chile
| | - Enric Gisbert
- IRTA, Centre de Sant Carles de la Ràpita (IRTA-SCR), Aquaculture Program, Sant Carles de la Ràpita, Spain
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Walker EM, Slisarenko N, Gerrets GL, Grasperge BF, Mattison JA, Kissinger PJ, Welsh DA, Veazey RS, Jazwinski SM, Rout N. Dysregulation of IL-17/IL-22 Effector Functions in Blood and Gut Mucosal Gamma Delta T Cells Correlates With Increase in Circulating Leaky Gut and Inflammatory Markers During cART-Treated Chronic SIV Infection in Macaques. Front Immunol 2021; 12:647398. [PMID: 33717202 PMCID: PMC7946846 DOI: 10.3389/fimmu.2021.647398] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 01/21/2021] [Indexed: 12/18/2022] Open
Abstract
HIV-associated inflammation has been implicated in the premature aging and increased risk of age-associated comorbidities in cART-treated individuals. However, the immune mechanisms underlying the chronic inflammatory state of cART-suppressed HIV infection remain unclear. Here, we investigated the role of γδT cells, a group of innate IL-17 producing T lymphocytes, in the development of systemic inflammation and leaky gut phenotype during cART-suppressed SIV infection of macaques. Plasma levels of inflammatory mediators, intestinal epithelial barrier disruption (IEBD) and microbial translocation (MT) biomarkers, and Th1/Th17-type cytokine functions were longitudinally assessed in blood and gut mucosa of SIV-infected, cART-suppressed macaques. Among the various gut mucosal IL-17/IL-22-producing T lymphocyte subsets including Th17, γδT, CD161+ CD8+ T, and MAIT cells, a specific decline in the Vδ2 subset of γδT cells and impaired IL-17/IL-22 production in γδT cells significantly correlated with the subsequent increase in plasma IEBD/MT markers (IFABP, LPS-binding protein, and sCD14) and pro-inflammatory cytokines (IL-6, IL-1β, IP10, etc.) despite continued viral suppression during long-term cART. Further, the plasma inflammatory cytokine signature during long-term cART was distinct from acute SIV infection and resembled the inflammatory cytokine profile of uninfected aging (inflammaging) macaques. Overall, our data suggest that during cART-suppressed chronic SIV infection, dysregulation of IL-17/IL-22 cytokine effector functions and decline of Vδ2 γδT cell subsets may contribute to gut epithelial barrier disruption and development of a distinct plasma inflammatory signature characteristic of inflammaging. Our results advance the current understanding of the impact of chronic HIV/SIV infection on γδT cell functions and demonstrate that in the setting of long-term cART, the loss of epithelial barrier-protective functions of Vδ2 T cells and ensuing IEBD/MT occurs before the hallmark expansion of Vδ1 subsets and skewed Vδ2/Vδ1 ratio. Thus, our work suggests that novel therapeutic approaches toward restoring IL-17/IL-22 cytokine functions of intestinal Vδ2 T cells may be beneficial in preserving gut epithelial barrier function and reducing chronic inflammation in HIV-infected individuals.
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Affiliation(s)
- Edith M. Walker
- Division of Microbiology, Tulane National Primate Research Center, Covington, LA, United States
| | - Nadia Slisarenko
- Division of Microbiology, Tulane National Primate Research Center, Covington, LA, United States
| | - Giovanni L. Gerrets
- Division of Microbiology, Tulane National Primate Research Center, Covington, LA, United States
| | - Brooke F. Grasperge
- Veterinary Medicine, Tulane National Primate Research Center, Covington, LA, United States
| | - Julie A. Mattison
- Translational Gerontology Branch, National Institute on Aging, NIH, Poolesville, MD, United States
| | - Patricia J. Kissinger
- School of Public Health & Tropical Medicine, Tulane University, New Orleans, LA, United States
| | - David A. Welsh
- Department of Microbiology, Immunology and Parasitology, Louisiana State University School of Medicine, New Orleans, LA, United States
| | - Ronald S. Veazey
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA, United States
| | - S. Michal Jazwinski
- Tulane Center for Aging, Tulane University School of Medicine, New Orleans, LA, United States
| | - Namita Rout
- Division of Microbiology, Tulane National Primate Research Center, Covington, LA, United States
- Tulane Center for Aging, Tulane University School of Medicine, New Orleans, LA, United States
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