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Han S, Bian R, Chen Y, Liang J, Zhao P, Gu Y, Zhang D. Dysregulation of the Gut Microbiota Contributes to Sevoflurane-Induced Cognitive Dysfunction in Aged Mice by Activating the NLRP3 Inflammasome. Mol Neurobiol 2024:10.1007/s12035-024-04229-x. [PMID: 38740706 DOI: 10.1007/s12035-024-04229-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 05/09/2024] [Indexed: 05/16/2024]
Abstract
Postoperative cognitive dysfunction (POCD), a common complication in elderly patients after surgery, seriously affects patients' quality of life. Long-term or repeated inhalation of sevoflurane can cause neuroinflammation, which is a risk factor for POCD. However, the underlying mechanism needs to be further explored. Recent research had revealed a correlation between neurological disorders and changes in the gut microbiota. Dysfunction of the gut microbiota is involved in the occurrence and development of central nervous system diseases. Here, we found that cognitive dysfunction in aged mice induced by sevoflurane exposure (3%, 2 hours daily, for 3 days) was related to gut microbiota dysbiosis, while probiotics improved cognitive function by alleviating dysbiosis. Sevoflurane caused a significant decrease in the abundance of Akkermansia (P<0.05), while probiotics restored the abundance of Akkermansia. Compared to those in the control group, sevoflurane significantly increased the expression of NLRP3 inflammasome-associated proteins in the gut and brain in the sevoflurane-exposed group, thus causing neuroinflammation and synaptic damage, which probiotics can mitigate (con vs. sev, P < 0.01; p+sev vs. sev, P < 0.05). In conclusion, for the first time, our study revealed that dysbiosis of the gut microbiota caused by sevoflurane anesthesia contributes to the NLRP3 inflammasome-mediated neuroinflammation and cognitive dysfunction from the perspective of the gut-brain axis. Perhaps postoperative cognitive impairment in elderly patients can be alleviated or even prevented by regulating the gut microbiota. This study provides new insights and methods for the prevention and treatment of cognitive impairment induced by sevoflurane.
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Affiliation(s)
- Shanshan Han
- Department of Anesthesiology, Wuxi Maternal and Child Health Care Hospital Affiliated to Jiangnan University, Wuxi, 214002, China
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Ruxi Bian
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Yuxuan Chen
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Junjie Liang
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Peng Zhao
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Yanfang Gu
- Department of Gynecology, Jiangnan University Affiliated Hospital, Wuxi, 214002, China.
| | - Dengxin Zhang
- Department of Anesthesiology, Wuxi Maternal and Child Health Care Hospital Affiliated to Jiangnan University, Wuxi, 214002, China.
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Zhou L, Han D, Wang X, Chen Z. Probiotic Formulation VSL#3 Interacts with Mesenchymal Stromal Cells To Protect Dopaminergic Neurons via Centrally and Peripherally Suppressing NOD-Like Receptor Protein 3 Inflammasome-Mediated Inflammation in Parkinson's Disease Mice. Microbiol Spectr 2023; 11:e0320822. [PMID: 36728426 PMCID: PMC10100967 DOI: 10.1128/spectrum.03208-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 01/08/2023] [Indexed: 02/03/2023] Open
Abstract
Systemic immunomodulation is increasingly recognized among the beneficial effects of mesenchymal stromal cells (MSCs) in treatment of Parkinson's disease (PD), while the underlying mechanism is not fully understood. With the growing popularity of using probiotics as an adjuvant approach in PD treatment, concerns about the added effects of probiotics have been raised. In addition to the molecular mechanism mediating the neuroprotective effects of MSCs, the combined effects of a probiotic formulation, VSL#3, and MSC infusion were also evaluated in PD mice. The animals were weekly treated with human MSCs (hMSCs) via the tail vein, VSL#3 via the gastrointestinal tract, or their combination six times. hMSCs, VSL#3 alone, and their combination markedly ameliorated the decreased striatal dopamine content, loss of dopaminergic neurons in the substantia nigra, increased levels of proinflammatory cytokines in serum, as well as tumor necrosis factor alpha (TNF-α) and interleukin-1β (IL-1β) mRNAs in striatum and peripheral tissues induced by MPTP. Furthermore, hMSCs, VSL#3, and their combination notably downregulated mRNA expression of NOD-like receptor protein 3 (NLRP3) and caspase-1 in brain and peripheral tissues of PD mice. These results suggest that hMSCs, VSL#3, and their combination prevent neurodegenerative changes in PD mice via anti-inflammatory activities in both the central and peripheral systems, possibly through suppressing the NLRP3 inflammasome. Moreover, two-way analysis of variance (ANOVA) indicated that VSL#3 interacts with hMSCs to attenuate neurodegeneration and inhibit NLRP3 inflammasome-mediated inflammation without altering the effects of hMSCs. Major findings of our study support the usage of probiotic formulation VSL#3 as an adjuvant therapy to hMSC infusion in PD treatment. IMPORTANCE This study provides evidence for the neuroprotective activities of human umbilical cord MSCs from the aspect of anti-inflammation actions. hMSCs inhibit the NLRP3 inflammasome and MPTP-induced inflammation in both brain and periphery to relieve the degenerative changes in dopaminergic neurons in PD mice. Furthermore, as an additional therapeutic agent, probiotic formulation VSL#3 interacts with hMSCs in suppressing the NLRP3 inflammasome as well as the central and peripheral anti-inflammatory effects to exert neuroprotective actions in PD mice without altering the actions of hMSCs, suggesting the potential of VSL#3 as an adjuvant therapy in PD treatment. The findings of the present study give a further understanding of the anti-inflammatory activity and the molecular mechanism for the beneficial effects of MSCs as well as the potential application of probiotic formulation as an adjuvant approach to MSC therapy in PD treatment.
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Affiliation(s)
- Liping Zhou
- Cell Therapy Center, Beijing Institute of Geriatrics, Xuanwu Hospital Capital Medical University, National Clinical Research Center for Geriatric Diseases, Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, China
| | - Deqiang Han
- Cell Therapy Center, Beijing Institute of Geriatrics, Xuanwu Hospital Capital Medical University, National Clinical Research Center for Geriatric Diseases, Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, China
| | - Xingzhe Wang
- Cell Therapy Center, Beijing Institute of Geriatrics, Xuanwu Hospital Capital Medical University, National Clinical Research Center for Geriatric Diseases, Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, China
| | - Zhiguo Chen
- Cell Therapy Center, Beijing Institute of Geriatrics, Xuanwu Hospital Capital Medical University, National Clinical Research Center for Geriatric Diseases, Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Center of Parkinson’s Disease, Beijing Institute for Brain Disorders, Beijing, China
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Facciotti F. Modulation of intestinal immune cell responses by eubiotic or dysbiotic microbiota in inflammatory bowel diseases. PHARMANUTRITION 2022. [DOI: 10.1016/j.phanu.2022.100303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Aygun H, Akin AT, Kızılaslan N, Sumbul O, Karabulut D. Probiotic supplementation alleviates absence seizures and anxiety- and depression-like behavior in WAG/Rij rat by increasing neurotrophic factors and decreasing proinflammatory cytokines. Epilepsy Behav 2022; 128:108588. [PMID: 35152169 DOI: 10.1016/j.yebeh.2022.108588] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 01/22/2022] [Accepted: 01/22/2022] [Indexed: 01/15/2023]
Abstract
AIM Epilepsy is one of the most common chronic brain disorders that affect millions of people worldwide. In the present study, we investigated the effects of probiotic supplementation on absence epilepsy and anxiety-and depression-like behavior in WAG/Rij rats. MATERIAL AND METHOD Fourteen male WAG/Rij rats (absence-epileptic) and seven male Wistar rats (nonepileptic) were used. The effects of probiotic VSL#3 (12.86 bn living bacteria/kg/day for 30 day/gavage) on absence seizures, and related psychiatric comorbidities were evaluated in WAG/Rij rats. Anxiety-like behavior was evaluated by the open-field test and depression-like behavior by the forced swimming test. In addition, the brain tissues of rats were evaluated histopathologically for nerve growth factor [NGF], brain-derived neurotrophic factor [BDNF], SRY sex-determining region Y-box 2 [SOX2] and biochemically for nitric oxide [NO], tumor necrosis factor-alpha [TNF-α] ,and Interleukin-6 [IL-6]. RESULTS Compared to Wistar rats, WAG/Rij rats exhibited anxiety- and depression-like behavior, and had lower BDNF, NGF and SOX2 immunoreactivity, and higher TNF-α, IL-6 levels in brain tissue. VSL#3 supplementation reduced the duration and number of spike-wave discharges (SWDs) and exhibited anxiolytic or anti-depressive effect. VSL#3 supplement also increased the NGF immunoreactivity while decreasing IL-6, TNF-α and NO levels in WAG/Rij rat brain. CONCLUSION The findings of the present study showed that neurotrophins, SOX2 deficiency, and pro-inflammatory cytokines may play a role in the pathogenesis of absence epilepsy. Our data support the hypothesis that the probiotics have anti-inflammatory effect. The present study is the first to show the positive effects of probiotic bacteria on absence seizures and anxiety- and depression-like behavior.
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Affiliation(s)
- Hatice Aygun
- Department of Physiology, Faculty of Medicine, University of Tokat Gaziosmanpasa, Tokat, Turkey.
| | - Ali Tugrul Akin
- Department of Biology, Faculty of Science and Literature, University of Erciyes, Kayseri, Turkey
| | - Nildem Kızılaslan
- Department of Nutrition and Dietetics, Faculty of Health Sciences, University of Tokat Gaziosmanpasa Tokat, Turkey
| | - Orhan Sumbul
- Department of Neurology Faculty of Medicine University of Tokat Gaziosmanpasa, Tokat, Turkey
| | - Derya Karabulut
- Department of Histology-Embryology, Faculty of Medicine, University of Erciyes, Kayseri, Turkey
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Li Y, Hintze KJ, Ward RE. Effect of supplemental prebiotics, probiotics and bioactive proteins on the microbiome composition and fecal calprotectin in C57BL6/j mice. Biochimie 2021; 185:43-52. [PMID: 33609630 DOI: 10.1016/j.biochi.2021.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 01/11/2021] [Accepted: 02/14/2021] [Indexed: 02/07/2023]
Abstract
The composition and metabolic activity of the microbiome affect many aspects of health, and there is current interest in dietary constituents that may affect this system. The purpose of this study was to evaluate the effects of a mix of probiotics, a mix of prebiotics and a bioactive protein fraction on the microbiome, when fed to mice alone and in combination at physiologically relevant doses. Mice were fed the total western diet (TWD) supplemented with prebiotics, probiotics, and bioactive proteins individually and in combination for four weeks. Subsequently, effects on the composition of the gut microbiome, gut short-chain fatty acids (SCFAs) concentration, and gut inflammation were measured. Ruminococcus gnavus was increased in mice gut microbiome after feeding prebiotics. Bifidobacterium longum was increased after feeding probiotics. The treatments significantly affected beta-diversity with minor treatment effects on cecal or fecal SCFAs levels, and the treatments did not affect gut inflammation as measured by fecal calprotectin.
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Affiliation(s)
- Ye Li
- Nutrition, Dietetics and Food Sciences, Utah State University, 8700 Old Main Hill, Logan, UT, 84322-8700, USA
| | - Korry J Hintze
- Nutrition, Dietetics and Food Sciences, Utah State University, 8700 Old Main Hill, Logan, UT, 84322-8700, USA
| | - Robert E Ward
- Nutrition, Dietetics and Food Sciences, Utah State University, 8700 Old Main Hill, Logan, UT, 84322-8700, USA.
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Dwyer Z, Chaiquin M, Landrigan J, Ayoub K, Shail P, Rocha J, Childers CL, Storey KB, Philpott DJ, Sun H, Hayley S. The impact of dextran sodium sulphate and probiotic pre-treatment in a murine model of Parkinson's disease. J Neuroinflammation 2021; 18:20. [PMID: 33422110 PMCID: PMC7796536 DOI: 10.1186/s12974-020-02062-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 12/16/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Recent work has established that Parkinson's disease (PD) patients have an altered gut microbiome, along with signs of intestinal inflammation. This could help explain the high degree of gastric disturbances in PD patients, as well as potentially be linked to the migration of peripheral inflammatory factors into the brain. To our knowledge, this is the first study to examine microbiome alteration prior to the induction of a PD murine model. METHODS We presently assessed whether pre-treatment with the probiotic, VSL #3, or the inflammatory inducer, dextran sodium sulphate (DSS), would influence the PD-like pathology provoked by a dual hit toxin model using lipopolysaccharide (LPS) and paraquat exposure. RESULTS While VSL #3 has been reported to have anti-inflammatory effects, DSS is often used as a model of colitis because of the gut inflammation and the breach of the intestinal barrier that it induces. We found that VSL#3 did not have any significant effects (beyond a blunting of LPS paraquat-induced weight loss). However, the DSS treatment caused marked changes in the gut microbiome and was also associated with augmented behavioral and inflammatory outcomes. In fact, DSS markedly increased taxa belonging to the Bacteroidaceae and Porphyromonadaceae families but reduced those from Rikencellaceae and S24-7, as well as provoking colonic pro-inflammatory cytokine expression, consistent with an inflamed gut. The DSS also increased the impact of LPS plus paraquat upon microglial morphology, along with circulating lipocalin-2 (neutrophil marker) and IL-6. Yet, neither DSS nor VSL#3 influenced the loss of substantia nigra dopamine neurons or the astrocytic and cytoskeleton remodeling protein changes that were provoked by the LPS followed by paraquat treatment. CONCLUSIONS These data suggest that disruption of the intestinal integrity and the associated microbiome can interact with systemic inflammatory events to promote widespread brain-gut changes that could be relevant for PD and at the very least, suggestive of novel neuro-immune communication.
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Affiliation(s)
- Zach Dwyer
- Department of Neuroscience, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
| | - Melany Chaiquin
- Department of Neuroscience, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
| | - Jeffrey Landrigan
- Department of Neuroscience, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
| | - Kiara Ayoub
- Department of Neuroscience, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
| | - Pragya Shail
- Department of Neuroscience, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
| | - Julianna Rocha
- Department of Immunology, University of Toronto, Toronto, Ontario, M5S 1A8, Canada
| | - Christie L Childers
- Institute of Biochemistry and Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
| | - Kenneth B Storey
- Institute of Biochemistry and Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
| | - Dana J Philpott
- Department of Immunology, University of Toronto, Toronto, Ontario, M5S 1A8, Canada
| | - Hongyu Sun
- Department of Neuroscience, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
| | - Shawn Hayley
- Department of Neuroscience, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada.
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Bernardazzi C, Xu H, Tong H, Laubitz D, Figliuolo da Paz V, Curiel L, Ghishan FK. An indisputable role of NHE8 in mucosal protection. Am J Physiol Gastrointest Liver Physiol 2020; 319:G421-G431. [PMID: 32755385 PMCID: PMC7654648 DOI: 10.1152/ajpgi.00246.2020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The loss of the intestinal Na+/H+ exchanger isoform 8 (NHE8) results in an ulcerative colitis-like condition with reduction of mucin production and dysbiosis, indicating that NHE8 plays an important role in intestinal mucosal protection. The aim of this study was to investigate the potential rebalance of the altered microbiota community of NHE8-deficient mice via fecal microbiota transplantation (FMT) and feeding probiotic VSL#3. We also aimed to stimulate mucin production by sodium butyrate administration via enema. Data from 16S rRNA sequencing showed that loss of NHE8 contributes to colonic microbial dysbiosis with reduction of butyrate-producing bacteria. FMT increased bacterial adhesion in the colon in NHE8 knockout (NHE8KO) mice. Periodic-acid Schiff reagent (PAS) stain and quantitative PCR showed no changes in mucin production during FMT. In mice treated with the probiotic VSL#3, a reduction of Lactobacillus and segmented filamentous bacteria (SFB) in NHE8KO mouse colon was detected and an increase in goblet cell theca was observed. In NHE8KO mice receiving sodium butyrate (NaB), 1 mM NaB stimulated Muc2 expression without changing goblet cell theca, but 10 mM NaB induced a significant reduction of goblet cell theca without altering Muc2 expression. Furthermore, 5 mM and 10 mM NaB-treated HT29-MTX cells displayed increased apoptosis, while 0.5 mM NaB stimulated Muc2 gene expression. These data showed that loss of NHE8 leads to dysbiosis with reduction of butyrate-producing bacteria and FMT and VSL#3 failed to rebalance the microbiota in NHE8KO mice. Therefore, FMT, VSL#3, and NaB are not able to restore mucin production in the absence of NHE8 in the intestine.NEW & NOTEWORTHY Loss of Na+/H+ exchanger isoform 8 (NHE8), a Slc9 family of exchanger that contributes to sodium uptake, cell volume regulation, and intracellular pH homeostasis, resulted in dysbiosis with reduction of butyrate-producing bacteria and decrease of Muc2 production in the intestine in mice. Introducing fecal microbiota transplantation (FMT) and VSL#3 in NHE8 knockout (NHE8KO) mice failed to rebalance the microbiota in these mice. Furthermore, administration of FMT, VSL#3, and sodium butyrate was unable to restore mucin production in the absence of NHE8 in the intestine.
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Affiliation(s)
| | - Hua Xu
- Steele Children's Research Center, University of Arizona, Tucson, Arizona
| | - Huan Tong
- Steele Children's Research Center, University of Arizona, Tucson, Arizona
| | - Daniel Laubitz
- Steele Children's Research Center, University of Arizona, Tucson, Arizona
| | | | - Leslie Curiel
- Steele Children's Research Center, University of Arizona, Tucson, Arizona
| | - Fayez K. Ghishan
- Steele Children's Research Center, University of Arizona, Tucson, Arizona
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Modulation of the Gut Microbiota Alters the Tumour-Suppressive Efficacy of Tim-3 Pathway Blockade in a Bacterial Species- and Host Factor-Dependent Manner. Microorganisms 2020; 8:microorganisms8091395. [PMID: 32932843 PMCID: PMC7564046 DOI: 10.3390/microorganisms8091395] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/08/2020] [Accepted: 09/09/2020] [Indexed: 12/23/2022] Open
Abstract
T cell immunoglobulin and mucin domain-containing protein-3 (Tim-3) is an immune checkpoint molecule and a target for anti-cancer therapy. In this study, we examined whether gut microbiota manipulation altered the anti-tumour efficacy of Tim-3 blockade. The gut microbiota of mice was manipulated through the administration of antibiotics and oral gavage of bacteria. Alterations in the gut microbiome were analysed by 16S rRNA gene sequencing. Gut dysbiosis triggered by antibiotics attenuated the anti-tumour efficacy of Tim-3 blockade in both C57BL/6 and BALB/c mice. Anti-tumour efficacy was restored following oral gavage of faecal bacteria even as antibiotic administration continued. In the case of oral gavage of Enterococcus hirae or Lactobacillus johnsonii, transferred bacterial species and host mouse strain were critical determinants of the anti-tumour efficacy of Tim-3 blockade. Bacterial gavage did not increase the alpha diversity of gut microbiota in antibiotic-treated mice but did alter the microbiome composition, which was associated with the restoration of the anti-tumour efficacy of Tim-3 blockade. Conclusively, our results indicate that gut microbiota modulation may improve the therapeutic efficacy of Tim-3 blockade during concomitant antibiotic treatment. The administered bacterial species and host factors should be considered in order to achieve therapeutically beneficial modulation of the microbiota.
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Amoroso C, Perillo F, Strati F, Fantini M, Caprioli F, Facciotti F. The Role of Gut Microbiota Biomodulators on Mucosal Immunity and Intestinal Inflammation. Cells 2020; 9:cells9051234. [PMID: 32429359 PMCID: PMC7291275 DOI: 10.3390/cells9051234] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 12/12/2022] Open
Abstract
Alterations of the gut microbiota may cause dysregulated mucosal immune responses leading to the onset of inflammatory bowel diseases (IBD) in genetically susceptible hosts. Restoring immune homeostasis through the normalization of the gut microbiota is now considered a valuable therapeutic approach to treat IBD patients. The customization of microbe-targeted therapies, including antibiotics, prebiotics, live biotherapeutics and faecal microbiota transplantation, is therefore considered to support current therapies in IBD management. In this review, we will discuss recent advancements in the understanding of host−microbe interactions in IBD and the basis to promote homeostatic immune responses through microbe-targeted therapies. By considering gut microbiota dysbiosis as a key feature for the establishment of chronic inflammatory events, in the near future it will be suitable to design new cost-effective, physiologic, and patient-oriented therapeutic strategies for the treatment of IBD that can be applied in a personalized manner.
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Affiliation(s)
- Chiara Amoroso
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, 20139 Milan, Italy; (C.A.); (F.P.); (F.S.)
| | - Federica Perillo
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, 20139 Milan, Italy; (C.A.); (F.P.); (F.S.)
| | - Francesco Strati
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, 20139 Milan, Italy; (C.A.); (F.P.); (F.S.)
| | - Massimo Fantini
- Gastroenterology Unit, Duilio Casula Hospital, AOU Cagliari, 09042 Cagliari, Italy;
- Department of Medical Science and Public Health, University of Cagliari, 09124 Cagliari, Italy
| | - Flavio Caprioli
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, 20135 Milan, Italy;
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20135 Milan, Italy
| | - Federica Facciotti
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, 20139 Milan, Italy; (C.A.); (F.P.); (F.S.)
- Correspondence:
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Dargahi N, Johnson J, Apostolopoulos V. Streptococcus thermophilus alters the expression of genes associated with innate and adaptive immunity in human peripheral blood mononuclear cells. PLoS One 2020; 15:e0228531. [PMID: 32045425 PMCID: PMC7012395 DOI: 10.1371/journal.pone.0228531] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 01/09/2020] [Indexed: 12/24/2022] Open
Abstract
Consumption of probiotics contributes to a healthy microbiome of the GIT leading to many health benefits. They also contribute to the modulation of the immune system and are becoming popular for the treatment of a number of immune and inflammatory diseases. The main objective of this study was to evaluate anti-inflammatory and modulatory properties of Streptococcus thermophilus. We used peripheral blood mononuclear cells from healthy donors and assessed modifications in the mRNA expression of their genes related to innate and adaptive immune system. Our results showed strong immune modulatory effects of S. thermophilus 285 to human peripheral blood mononuclear cells with an array of anti-inflammatory properties. S. thermophilus 285 reduced mRNA expression in a number of inflammatory immune mediators and markers, and upregulated a few of immune markers. S. thermophilus is used in the dairy industry, survives during cold storage, tolerates well upon ingesting, and their consumption may have beneficial effects with potential implications in inflammatory and autoimmune disorders.
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Affiliation(s)
- Narges Dargahi
- Institute for Health and Sport, Victoria University, Melbourne, Victoria, Australia
| | - Joshua Johnson
- Institute for Sustainable Industries and Liveable Cities, Victoria University, Melbourne, Victoria, Australia
| | - Vasso Apostolopoulos
- Institute for Health and Sport, Victoria University, Melbourne, Victoria, Australia
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Wang C, Schaefer L, Bian F, Yu Z, Pflugfelder SC, Britton RA, de Paiva CS. Dysbiosis Modulates Ocular Surface Inflammatory Response to Liposaccharide. Invest Ophthalmol Vis Sci 2020; 60:4224-4233. [PMID: 31618426 PMCID: PMC6795342 DOI: 10.1167/iovs.19-27939] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Purpose The purpose of this study was to investigate the inflammatory response of cornea and conjunctiva to topically applied lipopolysaccharide (LPS) in mice with and without antibiotic (antibiotic cocktail, ABX) induced dysbiosis. Methods Dysbiosis was induced by oral antibiotics for 14 days in a group of conventional female C57BL/6J (B6) mice. 16S rRNA sequencing investigated microbiome composition. Intestinal microbiome differences were assessed using 16S rRNA sequencing of fecal pellet DNA. Blood was collected after euthanasia. CD86 expression in draining nodes was examined by flow cytometry. At day 15, a single dose of LPS or vehicle was topically applied to ABX and naïve mice. Corneal epithelium and conjunctiva were obtained after 4 hours and processed for gene expression analysis. A separate group of germ-free (GF) B6 mice was also topically challenged with LPS. Results Antibiotic treatment significantly decreased intestinal diversity and increased serum levels of LPS. This was accompanied by a significant increase in CD86+MHC II+CD11c+CD11b+ cells in draining nodes. Compared to vehicle, topically applied LPS increased IL-1β, TNF-α, and CXCL10 mRNA transcripts in cornea and IL-1β, TNF-α, and CXCL10 in the conjunctiva in conventional and antibiotic-treated groups. However, there was higher TNF-α, CXCL10, and IL-12 expression in the cornea of LPS-treated ABX mice compared to LPS-treated mice with intact microbiota. LPS stimulation on GF conjunctiva mirrored the results in ABX mice, although greater IL-12 and IFN-γ expression was observed in GF conjunctiva compared to conventional LPS-treated mice. Conclusions Acute depletion of commensals through antibiotics or germ-free environment worsens the inflammatory response to LPS.
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Affiliation(s)
- Changjun Wang
- Eye Center, Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou, China.,Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States
| | - Laura Schaefer
- Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, United States
| | - Fang Bian
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States
| | - Zhiyuan Yu
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States
| | - Stephen C Pflugfelder
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States
| | - Robert A Britton
- Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, United States
| | - Cintia S de Paiva
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States
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Benis N, Wells JM, Smits MA, Kar SK, van der Hee B, Dos Santos VAPM, Suarez-Diez M, Schokker D. High-level integration of murine intestinal transcriptomics data highlights the importance of the complement system in mucosal homeostasis. BMC Genomics 2019; 20:1028. [PMID: 31888466 PMCID: PMC6937694 DOI: 10.1186/s12864-019-6390-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 12/12/2019] [Indexed: 12/25/2022] Open
Abstract
Background The mammalian intestine is a complex biological system that exhibits functional plasticity in its response to diverse stimuli to maintain homeostasis. To improve our understanding of this plasticity, we performed a high-level data integration of 14 whole-genome transcriptomics datasets from samples of intestinal mouse mucosa. We used the tool Centrality based Pathway Analysis (CePa), along with information from the Reactome database. Results The results show an integrated response of the mouse intestinal mucosa to challenges with agents introduced orally that were expected to perturb homeostasis. We observed that a common set of pathways respond to different stimuli, of which the most reactive was the Regulation of Complement Cascade pathway. Altered expression of the Regulation of Complement Cascade pathway was verified in mouse organoids challenged with different stimuli in vitro. Conclusions Results of the integrated transcriptomics analysis and data driven experiment suggest an important role of epithelial production of complement and host complement defence factors in the maintenance of homeostasis.
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Affiliation(s)
- Nirupama Benis
- Host Microbe Interactomics, Wageningen University & Research, Wageningen, The Netherlands. .,Systems and Synthetic Biology, Wageningen University & Research, Wageningen, The Netherlands.
| | - Jerry M Wells
- Host Microbe Interactomics, Wageningen University & Research, Wageningen, The Netherlands
| | - Mari A Smits
- Host Microbe Interactomics, Wageningen University & Research, Wageningen, The Netherlands.,Wageningen Livestock Research, Wageningen University & Research, Wageningen, The Netherlands.,Wageningen Bioveterinary Research, Wageningen University, Wageningen, The Netherlands
| | - Soumya Kanti Kar
- Host Microbe Interactomics, Wageningen University & Research, Wageningen, The Netherlands.,Wageningen Livestock Research, Wageningen University & Research, Wageningen, The Netherlands
| | - Bart van der Hee
- Host Microbe Interactomics, Wageningen University & Research, Wageningen, The Netherlands
| | - Vitor A P Martins Dos Santos
- Systems and Synthetic Biology, Wageningen University & Research, Wageningen, The Netherlands.,LifeGlimmer GmbH, Berlin, Germany
| | - Maria Suarez-Diez
- Systems and Synthetic Biology, Wageningen University & Research, Wageningen, The Netherlands
| | - Dirkjan Schokker
- Wageningen Livestock Research, Wageningen University & Research, Wageningen, The Netherlands
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13
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Salmonella enterica Requires Lipid Metabolism Genes To Replicate in Proinflammatory Macrophages and Mice. Infect Immun 2019; 88:IAI.00776-19. [PMID: 31611277 DOI: 10.1128/iai.00776-19] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 10/06/2019] [Indexed: 12/28/2022] Open
Abstract
To survive and replicate during infection, pathogens utilize different carbon and energy sources depending on the nutritional landscape of their host microenvironment. Salmonella enterica serovar Typhimurium is an intracellular bacterial pathogen that occupies diverse cellular niches. While it is clear that Salmonella Typhimurium requires access to glucose during systemic infection, data on the need for lipid metabolism are mixed. We report that Salmonella Typhimurium strains lacking lipid metabolism genes were defective for systemic infection of mice. Bacterial lipid import, β-oxidation, and glyoxylate shunt genes were required for tissue colonization upon oral or intraperitoneal inoculation. In cultured macrophages, lipid import and β-oxidation genes were required for bacterial replication and/or survival only when the cell culture medium was supplemented with nonessential amino acids. Removal of glucose from tissue culture medium further enhanced these phenotypes and, in addition, conferred a requirement for glyoxylate shunt genes. We also observed that Salmonella Typhimurium needs lipid metabolism genes in proinflammatory but not anti-inflammatory macrophages. These results suggest that during systemic infection, the Salmonella Typhimurium that relies upon host lipids to replicate is within proinflammatory macrophages that have access to amino acids but not glucose. An improved understanding of the host microenvironments in which pathogens have specific metabolic requirements may facilitate the development of targeted approaches to treatment.
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Yahiro T, Hara T, Matsumoto T, Ikebe E, Fife-Koshinomi N, Xu Z, Hiratsuka T, Iha H, Inomata M. Long-Term Potable Effects of Alkalescent Mineral Water on Intestinal Microbiota Shift and Physical Conditioning. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2019; 2019:2710587. [PMID: 31827547 PMCID: PMC6885775 DOI: 10.1155/2019/2710587] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 09/03/2019] [Accepted: 10/01/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND An alkalescent (pH 8.3) mineral water (AMW) of Hita basin, located in the northwestern part of Kyushu island in Japan, has been recognized for the unique quality of ingredients including highly concentrated silicic acid, sodium, potassium, and hydrogen carbonate. The biological effects of AMW intake were evaluated with a particular focus on its "antiobesity" properties through its modulation of the gut microbiota population. METHODS Two groups of C57BL6/J mice (8-week-old male) were maintained with a standard diet and tap water (control: TWC group) or AMW (AMW group) for 6 months and the following outputs were quantitated: (1) food and water intake, (2) body weight (weekly), (3) body fat measurements by CT scan (monthly), (4) sera biochemical values (TG, ALT, AST, and ALP), and (5) UCP-1 mRNA in fat tissues (terminal point). Two groups of ICR mice (7-week-old male) were maintained with the same method and their feces were collected at the 0, 1st, 3rd, and 6th month at which time the population rates of gut microbiota were quantitated using metagenomic sequencing analysis of 16S-rRNA. RESULTS Among all antiobesity testing items, even though a weekly dietary consumption was increased (p=0.012), both ratios of weight gain (p=1.21E - 10) and visceral fat accumulation (p=0.029) were significantly reduced in the AMW group. Other criteria including water intake (p=0.727), the amounts of total (p=0.1602), and subcutaneous fat accumulation (p=0.052) were within the margin of error and UCP-1 gene expression level (p=0.171) in the AMW group was 3.89-fold higher than that of TWC. Among 8 major gut bacteria families, Lactobacillaceae (increased, p=0.029) and Clostridiaceae (decreased, p=0.029) showed significant shift in the whole population. CONCLUSION We observed significantly reduced (1) weight gaining ratio (average -1.86%, up to -3.3%), (2) visceral fat accumulation ratio (average -4.30%, up to -9.1%), and (3) changes in gut microbiota population. All these consequences could support the "health benefit" functionality of AMW.
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Affiliation(s)
- Takaaki Yahiro
- Department of Microbiology, Oita University Faculty of Medicine, Oita, Japan
- Department of Pathology, Tsurumi Hospital, Beppu, Oita, Japan
| | - Takao Hara
- Department of Gastroenterological and Pediatric Surgery, Oita University Faculty of Medicine, Oita, Japan
| | - Takashi Matsumoto
- Department of Microbiology, Oita University Faculty of Medicine, Oita, Japan
| | - Emi Ikebe
- Department of Microbiology, Oita University Faculty of Medicine, Oita, Japan
| | | | - Zhaojun Xu
- Environmental Medicine Research Center, Quanzhou Medical College, Quanzhou, Fujian 362011, China
| | - Takahiro Hiratsuka
- Department of Gastroenterological and Pediatric Surgery, Oita University Faculty of Medicine, Oita, Japan
| | - Hidekatsu Iha
- Department of Microbiology, Oita University Faculty of Medicine, Oita, Japan
| | - Masafumi Inomata
- Department of Gastroenterological and Pediatric Surgery, Oita University Faculty of Medicine, Oita, Japan
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15
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Probiotic Mixture VSL#3 Alleviates Dextran Sulfate Sodium-induced Colitis in Mice by Downregulating T Follicular Helper Cells. Curr Med Sci 2019; 39:371-378. [DOI: 10.1007/s11596-019-2045-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 01/23/2019] [Indexed: 01/01/2023]
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16
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Riezzo G, Chimienti G, Orlando A, D'Attoma B, Clemente C, Russo F. Effects of long-term administration of Lactobacillus reuteri DSM-17938 on circulating levels of 5-HT and BDNF in adults with functional constipation. Benef Microbes 2018; 10:137-147. [PMID: 30574801 DOI: 10.3920/bm2018.0050] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Accumulated evidence shows that some probiotic strains ameliorate functional constipation (FC) via the modulation of specific gastrointestinal peptide pathways. The aims of this study were to investigate: (1) the effects of long-term administration of Lactobacillus reuteri (LR) DSM 17938 on the serum levels of serotonin (5-HT) and brain-derived neurotrophic factor (BDNF); (2) the possible link between 5-HT, BDNF, and specific constipation-related symptoms; (3) whether genetic variability at the 5-HTT gene-linked polymorphic region (5-HTTLPR) and BDNF Val66Met loci could be associated with serum 5-HT and BDNF variations. LR DSM 17938 was administered to 56 FC patients for 105 days in a randomised, double-blind manner. The fasting blood samples were collected during the randomisation visit (V1), at day 15 (induction period, V2), day 60 (intermediate evaluation, V3), and day 105 (V4) and the Constipaq questionnaire (the sum of Constipation Scoring System (CSS) and patient assessment constipation quality of life (PAC-QoL)) was administered. A group of healthy subjects was enrolled as controls (HC). At V1, the mean serum 5-HT level in the whole patient group was significantly higher (P=0.027) than in HC subjects, while serum BDNF did not. At the end of probiotic administration (V4), 5-HT and BDNF levels were significantly lower than the initial values (V1) (P=0.008 and P=0.015, respectively). 5-HT and BDNF serum concentration were significantly associated (r=0.355; P=0.007). Neither 5-HT nor BDNF serum levels correlated with the CSS item scores and with the PAC-QoL. Lastly, the regression analysis demonstrated that the presence of the S allele of the 5-HTTLPR accounted for the reduction in the 5-HT concentration at V4. In conclusion, the long-term administration of LR DSM 17938 demonstrated that such a probiotic strain could improve FC by affecting 5-HT and BDNF serum concentrations.
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Affiliation(s)
- G Riezzo
- 1 Laboratory of Nutritional Pathophysiology, National Institute of Digestive Diseases I.R.C.C.S. 'Saverio de Bellis', Via Turi 27, 70013 Castellana Grotte, Bari, Italy
| | - G Chimienti
- 2 Department of Biosciences, Biotechnology and Biopharmaceutics, University of Bari, Via Orabona 4, 70100 Bari, Italy
| | - A Orlando
- 1 Laboratory of Nutritional Pathophysiology, National Institute of Digestive Diseases I.R.C.C.S. 'Saverio de Bellis', Via Turi 27, 70013 Castellana Grotte, Bari, Italy
| | - B D'Attoma
- 1 Laboratory of Nutritional Pathophysiology, National Institute of Digestive Diseases I.R.C.C.S. 'Saverio de Bellis', Via Turi 27, 70013 Castellana Grotte, Bari, Italy
| | - C Clemente
- 1 Laboratory of Nutritional Pathophysiology, National Institute of Digestive Diseases I.R.C.C.S. 'Saverio de Bellis', Via Turi 27, 70013 Castellana Grotte, Bari, Italy
| | - F Russo
- 1 Laboratory of Nutritional Pathophysiology, National Institute of Digestive Diseases I.R.C.C.S. 'Saverio de Bellis', Via Turi 27, 70013 Castellana Grotte, Bari, Italy
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17
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Spacova I, Ceuppens JL, Seys SF, Petrova MI, Lebeer S. Probiotics against airway allergy: host factors to consider. Dis Model Mech 2018; 11:11/7/dmm034314. [PMID: 30037806 PMCID: PMC6078401 DOI: 10.1242/dmm.034314] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The worldwide prevalence of allergic diseases has drastically increased in the past decades. Recent studies underline the importance of microbial exposure for the development of a balanced immune system. Consequently, probiotic bacteria are emerging as a safe and natural strategy for allergy prevention and treatment. However, clinical probiotic intervention studies have so far yielded conflicting results. There is increasing awareness about the importance of host-associated factors that determine whether an individual will respond to a specific probiotic treatment, and it is therefore crucial to promote a knowledge-based instead of an empirical selection of promising probiotic strains and their administration regimen.In this Review, we summarize the insights from animal model studies of allergic disease, which reveal how host-related factors - such as genetic makeup, sex, age and microbiological status - can impact the outcomes of preventive or curative probiotic treatment. We explore why and how these factors can influence the results of probiotic studies and negatively impact the reproducibility in animal experiments. These same factors might profoundly influence the outcomes of human clinical trials, and can potentially explain the conflicting results from probiotic intervention studies. Therefore, we also link these host-related factors to human probiotic study outcomes in the context of airway allergies.
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Affiliation(s)
- Irina Spacova
- Research Group Environmental Ecology and Applied Microbiology, Department of Bioscience Engineering, University of Antwerp, 2020 Antwerp, Belgium.,Centre of Microbial and Plant Genetics, Department of Microbial and Molecular Systems (M²S), KU Leuven, Belgium
| | - Jan L Ceuppens
- Laboratory of Clinical Immunology, Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium
| | - Sven F Seys
- Laboratory of Clinical Immunology, Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium
| | - Mariya I Petrova
- Centre of Microbial and Plant Genetics, Department of Microbial and Molecular Systems (M²S), KU Leuven, Belgium
| | - Sarah Lebeer
- Research Group Environmental Ecology and Applied Microbiology, Department of Bioscience Engineering, University of Antwerp, 2020 Antwerp, Belgium .,Centre of Microbial and Plant Genetics, Department of Microbial and Molecular Systems (M²S), KU Leuven, Belgium
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18
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Fuke N, Takagi T, Higashimura Y, Tsuji T, Umeda R, Mizushima K, Tanaka M, Suganuma H, Aizawa K, Yajima N, Naito Y. Lactobacillus brevis KB290 With Vitamin A Ameliorates Murine Intestinal Inflammation Associated With the Increase of CD11c+ Macrophage/CD103- Dendritic Cell Ratio. Inflamm Bowel Dis 2018; 24:317-331. [PMID: 29361084 DOI: 10.1093/ibd/izx003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND The ratio of colonic anti-inflammatory CD11c+ macrophages (MPs) to inflammatory CD103- dendritic cells (DCs) plays pivotal roles in intestinal inflammation. Little is known about how the ratio is regulated by lactic acid bacteria (LAB) and bifidobacteria (Bif). We investigated the contribution of LAB/Bif to this ratio. METHODS We established an in vitro experimental system using human myeloblastic KG-1 cells, which differentiate into CD11c+ MP-like (CD11c+ MPL) and CD103- DC-like (CD103- DCL) cells, and explored effective LAB/Bif strains. The selected strain's effect on the colonic CD11c+ MP/CD103- DC ratio and intestinal inflammation was examined in mice, and the strain's underlying mechanisms were investigated in vitro. RESULTS We screened 19 strains of LAB/Bif, and found that Lactobacillus brevis KB290 (KB290) increased the CD11c+ MPL/CD103- DCL cell ratio only in the presence of a vitamin A (VA) metabolite, retinoic acid (RA). Supplementation of KB290 with VA increased the CD11c+ MP/CD103- DC ratio in healthy mouse and prevented the disruption of the ratio during colitis. Supplementation of KB290 with pro-VA (β-carotene) also increased the ratio in healthy mouse and ameliorated the development of colitis. The ratio was increased by reduction of CD103- DCs (or CD103- DCL cells). Our in vitro data suggested that KB290 induced cell death in CD103- DCL cells in the presence of RA signaling. CONCLUSIONS Supplementation of KB290 with VA increases the colonic CD11c+ MP/CD103- DC ratio associated with the amelioration of murine colitis, suggesting a possible way to control intestinal inflammation by LAB.
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Affiliation(s)
- Nobuo Fuke
- Nature & Wellness Research Department, Innovation Division, Nasushiobara, Tochigi, Japan
| | - Tomohisa Takagi
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan
| | - Yasuki Higashimura
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan.,Department of Food Science, Ishikawa Prefectural University, Nonoichi, Ishikawa, Japan
| | - Toshifumi Tsuji
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan
| | - Ryohei Umeda
- Nature & Wellness Research Department, Innovation Division, Nasushiobara, Tochigi, Japan
| | - Katsura Mizushima
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan
| | - Makoto Tanaka
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan
| | - Hiroyuki Suganuma
- Nature & Wellness Research Department, Innovation Division, Nasushiobara, Tochigi, Japan
| | - Koichi Aizawa
- Nature & Wellness Research Department, Innovation Division, Nasushiobara, Tochigi, Japan
| | - Nobuhiro Yajima
- Nature & Wellness Research Department, Innovation Division, Nasushiobara, Tochigi, Japan.,Department of Food and Nutritional Science, Tokyo University of Agriculture, Setagaya-ku, Japan
| | - Yuji Naito
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan
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19
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Strain-specific helper T cell profile in the gut-associated lymphoid tissue. Immunol Lett 2017; 190:282-288. [DOI: 10.1016/j.imlet.2017.08.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 08/15/2017] [Accepted: 08/15/2017] [Indexed: 12/11/2022]
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20
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Yang G, Jiang Y, Tong P, Li C, Yang W, Hu J, Ye L, Gu W, Shi C, Shan B, Wang C. Alleviation of enterotoxigenic Escherichia coli challenge by recombinant Lactobacillus plantarum expressing a FaeG- and DC-targeting peptide fusion protein. Benef Microbes 2017; 8:379-391. [DOI: 10.3920/bm2016.0116] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
FaeG is the major subunit of K88 fimbriae. These cell surface attachments are considered to be the major virulence factor of enterotoxigenic Escherichia coli (ETEC), which causes diarrhoea in piglets. The use of dendritic cell-targeting peptide (DCpep) has been demonstrated to be an effective approach to enhance the immunity of vaccines. Lactobacillus plantarum is an attractive candidate for oral vaccination owing to its beneficial effects and safety. In this study, L. plantarum was employed to deliver a FaeG-DCpep fusion antigen, and the immune response in mice was evaluated. The synthesis of FaeG-DCpep dramatically increased the adhesion of recombinant L. plantarum (RLP) to IPEC-J2 cell surfaces, resulting in direct competition between L. plantarum and ETEC during adhesion assays. Significantly higher levels of body weight gain, sera immunoglobulin G and intestinal immunoglobulin A were observed in BALB/c mice immunised with RLP. In addition, the number of CD19+ B cells and CD11c+DC cells and the expression levels of several cytokines in the spleen and lymph nodes increased significantly compared to non-immunised mice. The oral administration of RLP also alleviated the symptoms of ETEC challenge, as shown by haematoxylin-eosin staining, indicating that RLP may be an efficient vaccine candidate.
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Affiliation(s)
- G. Yang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, Jilin Province 130118, China P.R
| | - Y. Jiang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, Jilin Province 130118, China P.R
| | - P. Tong
- Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Changchun 130112, China P.R
| | - C. Li
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, Jilin Province 130118, China P.R
| | - W. Yang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, Jilin Province 130118, China P.R
| | - J. Hu
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, Jilin Province 130118, China P.R
| | - L. Ye
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, Jilin Province 130118, China P.R
| | - W. Gu
- Shandong Baolai-Leelai Bio-Tech Co., LTD, Taian, Shandong Province 171000, China P.R
| | - C. Shi
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, Jilin Province 130118, China P.R
| | - B. Shan
- Shandong Baolai-Leelai Bio-Tech Co., LTD, Taian, Shandong Province 171000, China P.R
| | - C. Wang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, Jilin Province 130118, China P.R
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21
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Huang CH, Lin YC, Jan TR. Lactobacillus reuteri induces intestinal immune tolerance against food allergy in mice. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.01.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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22
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Mariman R, Reefman E, Tielen F, Persoon-Deen C, van de Mark K, Worms N, Koning F, Nagelkerken L. Lactobacillus plantarum NCIMB8826 ameliorates inflammation of colon and skin in human APOC1 transgenic mice. Benef Microbes 2016; 7:215-25. [DOI: 10.3920/bm2015.0074] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Genetic predisposition and environmental factors, including the gut microbiota, have been suggested as major factors in the development and progression of atopic dermatitis. Hyperlipidemic human APOC1+/+ transgenic mice display many features of human atopic dermatitis, such as scaling, lichenification, excoriations, and pruritus, along with a disturbed skin barrier function. Cytokine analysis of serum shows an increase of various pro-inflammatory cytokines, including interleukin (IL)-12p40, IL-6, and IL-1α, but lower levels of interferon-γ. These mice also display aspects of colitis evident from macroscopic and histological abnormalities. Genome-wide transcriptome analysis of the intestine shows up-regulation of several genes associated with mast cells and eosinophils and this observation was confirmed by demonstrating increased numbers of IgE+ and FcRε+ mast cells in the colon and in the skin. Oral treatment with Lactobacillus plantarum NCIMB8826 resulted in decreased numbers of mast cells in the colon. Moreover, this L. plantarum strain ameliorated skin pathology, evident from improved skin barrier integrity, absence of skin thickening, and less excoriations. These results suggest that modulation of intestinal immune homeostasis contributes to the suppression of atopic dermatitis.
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Affiliation(s)
- R. Mariman
- TNO, Metabolic Health Research, Zernikedreef 9, 2333 CK Leiden, the Netherlands
- Leiden University Medical Centrum, Department of Immunohematology and Bloodtransfusion, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - E. Reefman
- TNO, Metabolic Health Research, Zernikedreef 9, 2333 CK Leiden, the Netherlands
| | - F. Tielen
- TNO, Metabolic Health Research, Zernikedreef 9, 2333 CK Leiden, the Netherlands
| | - C. Persoon-Deen
- TNO, Metabolic Health Research, Zernikedreef 9, 2333 CK Leiden, the Netherlands
| | - K. van de Mark
- TNO, Metabolic Health Research, Zernikedreef 9, 2333 CK Leiden, the Netherlands
| | - N. Worms
- TNO, Metabolic Health Research, Zernikedreef 9, 2333 CK Leiden, the Netherlands
| | - F. Koning
- Leiden University Medical Centrum, Department of Immunohematology and Bloodtransfusion, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - L. Nagelkerken
- TNO, Metabolic Health Research, Zernikedreef 9, 2333 CK Leiden, the Netherlands
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23
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Grimm V, Radulovic K, Riedel CU. Colonization of C57BL/6 Mice by a Potential Probiotic Bifidobacterium bifidum Strain under Germ-Free and Specific Pathogen-Free Conditions and during Experimental Colitis. PLoS One 2015; 10:e0139935. [PMID: 26439388 PMCID: PMC4595203 DOI: 10.1371/journal.pone.0139935] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 09/18/2015] [Indexed: 12/18/2022] Open
Abstract
The effects of at least some probiotics are restricted to live, metabolically active bacteria at their site of action. Colonization of and persistence in the gastrointestinal tract is thus contributing to the beneficial effects of these strains. In the present study, colonization of an anti-inflammatory Bifidobacterium bifidum strain was studied in C57BL/6J mice under germ-free (GF) and specific pathogen-free (SPF) conditions as well as during dextran sulfate sodium (DSS)-induced colitis. B. bifidum S17/pMGC was unable to stably colonize C57BL/6J mice under SPF conditions. Mono-association of GF mice by three doses on consecutive days led to long-term, stable detection of up to 109 colony forming units (CFU) of B. bifidum S17/pMGC per g feces. This stable population was rapidly outcompeted upon transfer of mono-associated animals to SPF conditions. A B. animalis strain was isolated from the microbiota of these re-conventionalized mice. This B. animalis strain displayed significantly higher adhesion to murine CMT-93 intestinal epithelial cells (IECs) than to human Caco-2 IECs (p = 0.018). Conversely, B. bifidum S17/pMGC, i.e., a strain of human origin, adhered at significantly higher levels to human compared to murine IECs (p < 0.001). Disturbance of the gut ecology and induction of colitis by DSS-treatment did not promote colonization of the murine gastrointestinal tract (GIT) by B. bifidum S17/pMGC. Despite its poor colonization of the mouse GIT, B. bifidum S17/pMGC displayed a protective effect on DSS-induced colitis when administered as viable bacteria but not as UV-inactivated preparation. Collectively, these results suggest a selective disadvantage of B. bifidum S17/pMGC in the competition with the normal murine microbiota and an anti-inflammatory effect that requires live, metabolically active bacteria.
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Affiliation(s)
- Verena Grimm
- Institute of Microbiology and Biotechnology, University of Ulm, 89068, Ulm, Germany
| | - Katarina Radulovic
- Institute of Microbiology and Biotechnology, University of Ulm, 89068, Ulm, Germany
| | - Christian U. Riedel
- Institute of Microbiology and Biotechnology, University of Ulm, 89068, Ulm, Germany
- * E-mail:
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Sun J, Qiao Y, Qi C, Jiang W, Xiao H, Shi Y, Le GW. High-fat-diet-induced obesity is associated with decreased antiinflammatory Lactobacillus reuteri sensitive to oxidative stress in mouse Peyer's patches. Nutrition 2015; 32:265-72. [PMID: 26620713 DOI: 10.1016/j.nut.2015.08.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Revised: 08/01/2015] [Accepted: 08/22/2015] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Diet-induced inflammation in the small intestine may represent an early event that precedes and predisposes to obesity and insulin resistance. This is related to decrease of lactobacilli in Peyer's patches (PP) revealed in our previous study. The present study aimed to clarify specific changes of PP Lactobacillus on the strain level and related biological activity. METHODS C57 BL/6 J male mice were fed with either low-fat diet (control [CT]; 10% calories from fat) or high-fat diet (HFD; 50% calories from fat) for 25 wk, and the HFD-fed mice were classified into obesity prone (OP) or obesity resistant (OR) on the basis of their body weight gain. Lactobacillus was isolated from PP using a selective medium. Oxidative resistance and cytokine-inducing effect were analyzed in vitro. RESULTS We obtained 52, 18, and 22 isolates from CT, OP, and OR mice, respectively. They belonged to 13 different types according to enterobacterial repetitive intergenic consensus sequence-PCR analysis. Lactobacillus reuteri was the most abundant strain, but its abundance in OP mice was much lower than that in CT and OR mice. This strain includes eight subgroups according to genotyping. L. reuteri L3 and L. reuteri L8 were the specific strains found in CT and OP mice, respectively. Oxidative-resistant L. reuteri was much higher in HFD-fed mice. When co-cultured with PP cells, L8 induced higher production of proinflammatory cytokines such as interleukin (IL)-6, IL-12, and tumor necrosis factor-α, whereas L3 induced higher production of an anti-inflammatory cytokine (IL-10). CONCLUSION HFD may induce oxidative stress that drives strain selection of Lactobacillus strains, resulting in decreased anti-inflammatory response in PP.
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Affiliation(s)
- Jin Sun
- Food Nutrition and Functional Factors Research Center, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China; State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China.
| | - Yi Qiao
- Food Nutrition and Functional Factors Research Center, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
| | - Ce Qi
- Food Nutrition and Functional Factors Research Center, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China; State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
| | - Wei Jiang
- Food Nutrition and Functional Factors Research Center, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Yonghui Shi
- Food Nutrition and Functional Factors Research Center, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China; State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
| | - Guo-Wei Le
- Food Nutrition and Functional Factors Research Center, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China; State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
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