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Chen SY, Chu CT, Yang ML, Lin JD, Wang CT, Lee CH, Lin IC, Shiau AL, Ling P, Wu CL. Amelioration of Murine Colitis by Attenuated Salmonella choleraesuis Encoding Interleukin-19. Microorganisms 2023; 11:1530. [PMID: 37375032 DOI: 10.3390/microorganisms11061530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
The imbalance of mucosal immunity in the lower gastrointestinal tract can lead to chronic inflammatory bowel diseases (IBDs), including Crohn's disease and ulcerative colitis. IBD is a chronic inflammatory disorder that causes small and/or large intestines ulceration. According to previous studies, recombinant interleukin (IL)-10 protein and genetically modified bacteria secreting IL-10 ameliorate dextran sulfate sodium (DSS)-induced colitis in mice. IL-19 is a transcriptional activator of IL-10 and can alter the balance of T helper 1 (Th)1/Th2 cells in favor of Th2. In this study, we aimed to investigate whether the expression of the murine IL-19 gene carried by Salmonella choleraesuis (S. choleraesuis) could ameliorate murine IBD. Our results showed that the attenuated S. choleraesuis could carry and express the IL-19 gene-containing plasmid for IBD gene therapy by reducing the mortality and clinical signs in DSS-induced acute colitis mice as compared to the untreated ones. We also found that IL-10 expression was induced in IL-19-treated colitis mice and prevented inflammatory infiltrates and proinflammatory cytokine expression in these mice. We suggest that S. choleraesuis encoding IL-19 provides a new strategy for treating IBD in the future.
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Affiliation(s)
- Shih-Yao Chen
- Department of Nursing, College of Nursing, Chung Hwa University of Medical Technology, Tainan 71703, Taiwan
| | - Chun-Ting Chu
- Division of Colorectal Surgery, Department of Surgery, Ditmanson Medical Foundation Chia-Yi Christian Hospital, 539, Zhongxiao Road, Chiayi City 60002, Taiwan
| | - Mei-Lin Yang
- Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi City 60002, Taiwan
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Jian-Da Lin
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, Taipei City 10617, Taiwan
| | - Chung-Teng Wang
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Che-Hsin Lee
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - I-Chen Lin
- Division of Colorectal Surgery, Department of Surgery, Ditmanson Medical Foundation Chia-Yi Christian Hospital, 539, Zhongxiao Road, Chiayi City 60002, Taiwan
| | - Ai-Li Shiau
- Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi City 60002, Taiwan
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Pin Ling
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Chao-Liang Wu
- Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi City 60002, Taiwan
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
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HIURA K, MARUYAMA T, WATANABE M, NAKANO K, OKAMURA T, SASAKI H, SASAKI N. Mitotic spindle positioning protein (MISP) deficiency exacerbates dextran sulfate sodium (DSS)-induced colitis in mice. J Vet Med Sci 2023; 85:167-174. [PMID: 36596561 PMCID: PMC10017287 DOI: 10.1292/jvms.22-0483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 12/07/2022] [Indexed: 12/31/2022] Open
Abstract
Inflammatory bowel disease (IBD) is classified into two types: Crohn's disease and ulcerative colitis. In IBD, the imbalance between the pro-inflammatory and anti-inflammatory cytokines prevents recovery from the inflammatory state, resulting in chronic inflammation in the colon. The mitotic spindle positioning protein (MISP) is localized to the apical membrane in the colon. In this study, we observed increased expression of MISP in the intestinal epithelial cells in dextran sulfate sodium (DSS)-induced colitis in mice. MISP-deficient mice receiving DSS showed significant exacerbation of colitis (e.g., weight loss, loss of the crypts). The intestinal epithelial cells of the MISP-deficient mice showed a trend towards decreased cell proliferation after DSS treatment. Reverse transcription followed by quantitative polymerase chain reaction revealed that the expression levels of Tgfb1, an anti-inflammatory cytokine, were significantly reduced in the colon of MISP-deficient mice compared with the wild-type mice regardless of DSS treatment. These findings indicate that MISP may play a role in the recovery of the colon after inflammation through its anti-inflammatory and proliferative activities, suggesting that MISP may be a new therapeutic target for IBD.
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Affiliation(s)
- Koki HIURA
- Laboratory of Laboratory Animal Science and Medicine, School
of Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Takumi MARUYAMA
- Laboratory of Laboratory Animal Science and Medicine, School
of Veterinary Medicine, Kitasato University, Aomori, Japan
- Department of Laboratory Animal Medicine, Research
Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Masaki WATANABE
- Laboratory of Laboratory Animal Science and Medicine, School
of Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Kenta NAKANO
- Department of Laboratory Animal Medicine, Research
Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Tadashi OKAMURA
- Department of Laboratory Animal Medicine, Research
Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Hayato SASAKI
- Laboratory of Laboratory Animal Science and Medicine, School
of Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Nobuya SASAKI
- Laboratory of Laboratory Animal Science and Medicine, School
of Veterinary Medicine, Kitasato University, Aomori, Japan
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Wong WT, Wu CH, Li LH, Hung DY, Chiu HW, Hsu HT, Ho CL, Chernikov OV, Cheng SM, Yang SP, Chung CH, Hua KF, Wang CF. The leaves of the seasoning plant Litsea cubeba inhibit the NLRP3 inflammasome and ameliorate dextran sulfate sodium-induced colitis in mice. Front Nutr 2022; 9:871325. [PMID: 35967819 PMCID: PMC9363825 DOI: 10.3389/fnut.2022.871325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 07/04/2022] [Indexed: 11/22/2022] Open
Abstract
The intracellular sensor NACHT, LRR, and PYD domain-containing protein 3 (NLRP3) inflammasome controls caspase-1 activity and the maturation and release of the cytokines interleukin (IL)−1β and IL−18. The NLRP3 inflammasome has attracted the attention of the pharmaceutical industry because it promotes the pathogenesis of many diseases, making it a promising target for drug development. Litsea cubeba (Lour.) is a plant traditionally used as a seasoning in Taiwan and in other Asian countries. In this study, we investigated the inhibitory activity of the leaves of L. cubeba against the NLRP3 inflammasome. We found that the ethanol extract of L. cubeba leaves (MLE) inhibited the NLRP3 inflammasome in macrophages by reducing caspase−1 activation and IL−1β secretion. MLE reduced pyroptosis in macrophages and inhibited the release of NLRP3 and apoptosis-associated speck-like protein containing a CARD (ASC). In a mechanistic study, MLE reduced mitochondrial reactive oxygen species (ROS) production and preserved mitochondrial integrity, which led to reduced mitochondrial DNA release into the cytosol. MLE did not reduce the expression levels of NLRP3, IL−1β precursor or TNF-α in lipopolysaccharide (LPS)-activated macrophages. These results indicated that MLE inhibited the NLRP3 inflammasome by suppressing the activation signals of the NLRP3 inflammasome but not by reducing the priming signal induced by LPS. In addition, oral administration of MLE (20−80 mg/kg) ameliorated dextran sulfate sodium (DSS)−induced colitis in a mouse model. Notably, mice that received MLE (1 and 2 g/kg) daily for 7 days did not exhibit visible side effects. Gas chromatography-mass spectrometry (GC-MS) analysis found that α-Terpinyl acetate (27.2%) and 1,8−Cineole (17.7%) were the major compounds in MLE. These results indicated that L. cubeba leaves have the potential to be a nutraceutical for preventing and improving NLRP3 inflammasome-related diseases.
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Affiliation(s)
- Wei-Ting Wong
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
| | - Chun-Hsien Wu
- Division of Cardiology, Department of Internal Medicine, National Defense Medical Center, Tri-Service General Hospital, Taipei, Taiwan
| | - Lan-Hui Li
- Department of Laboratory Medicine, Linsen, Chinese Medicine and Kunming Branch, Taipei City Hospital, Taipei, Taiwan.,Department of Pathology, National Defense Medical Center, Tri-Service General Hospital, Taipei, Taiwan
| | - De-Yu Hung
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
| | - Hsiao-Wen Chiu
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
| | - Hsien-Ta Hsu
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.,School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan
| | - Chen-Lung Ho
- Division of Wood Cellulose, Taiwan Forestry Research Institute, Taipei, Taiwan
| | - Oleg V Chernikov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry FEB RAS, Vladivostok, Russia
| | - Shu-Meng Cheng
- Division of Cardiology, Department of Internal Medicine, National Defense Medical Center, Tri-Service General Hospital, Taipei, Taiwan
| | - Shih-Ping Yang
- Division of Cardiology, Department of Internal Medicine, National Defense Medical Center, Tri-Service General Hospital, Taipei, Taiwan
| | - Chih-Hsin Chung
- Department of Forestry and Natural Resources, National Ilan University, Ilan, Taiwan
| | - Kuo-Feng Hua
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan.,Department of Pathology, National Defense Medical Center, Tri-Service General Hospital, Taipei, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Chin-Fah Wang
- Center for General Education, National Ilan University, Ilan, Taiwan
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Zhou Y, Chen S, Gu W, Sun X, Wang L, Tang L. Sinomenine hydrochloride ameliorates dextran sulfate sodium-induced colitis in mice by modulating the gut microbiota composition whilst suppressing the activation of the NLRP3 inflammasome. Exp Ther Med 2021; 22:1287. [PMID: 34630642 PMCID: PMC8461516 DOI: 10.3892/etm.2021.10722] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 07/02/2021] [Indexed: 12/13/2022] Open
Abstract
Sinomenine is a pure alkaloid that can be isolated from the root of Sinomenium acutum and has been found to exert anti-inflammatory and immunosuppressive effects. The present study investigated the effects of sinomenine hydrochloride (SIN) on inflammation and the gut microbiota composition in the colon of mouse models of dextran sulfate sodium (DSS)-induced colitis. DSS-induced mice colitis was established by treating the mice with drinking water containing 3% (w/v) DSS for 7 days. The disease activity index of each mouse was calculated on a daily basis. All mice were sacrificed on day 11, then the weight of their spleen and length of their colons were measured. The histological analysis was measured by hematoxylin-eosin staining. Oral administration of SIN (100 mg/kg/day) attenuated the DSS-induced increases in the disease activity indices and spleen indices, DSS-induced shortening of the colon length and histological damage. In addition, reverse transcription-quantitative PCR data showed that SIN treatment effectively regulated the expression of inflammatory mediators, specifically by suppressing the expression of proinflammatory gene (TNF-α, IL-6 and inducible nitric oxide synthase) whilst increasing those associated with inhibiting inflammation (IL-10 and arginine 1). Gut microbiota analysis was conducted using 16S ribosomal DNA sequencing. The results revealed that SIN improved bacterial community homeostasis and diversity, which were damaged by DSS. Furthermore, western blotting showed that the activation of the NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3) inflammasome was markedly suppressed by SIN treatment. In conclusion, these results indicated that SIN may ameliorate experimental colitis by modulating the gut microbiota composition and suppressing the activation of the NLRP3 inflammasome in mice. Overall, these findings suggested a broad protective effect of SIN in treating inflammatory gut diseases, including ulcerative colitis.
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Affiliation(s)
- Yan Zhou
- Central Laboratory, The Affiliated Hospital of Nanjing Medical University, Changzhou No. 2 People's Hospital, Changzhou, Jiangsu 213003, P.R. China.,Department of Gastrointestinal Surgery, The Affiliated Hospital of Nanjing Medical University, Changzhou No. 2 People's Hospital, Changzhou, Jiangsu 213003, P.R. China
| | - Shuai Chen
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Nanjing Medical University, Changzhou No. 2 People's Hospital, Changzhou, Jiangsu 213003, P.R. China
| | - Wenxian Gu
- Department of Pathology, The Affiliated Hospital of Nanjing Medical University, Changzhou No. 2 People's Hospital, Changzhou, Jiangsu 213003, P.R. China
| | - Xiao Sun
- Central Laboratory, The Affiliated Hospital of Nanjing Medical University, Changzhou No. 2 People's Hospital, Changzhou, Jiangsu 213003, P.R. China
| | - Linxiao Wang
- Central Laboratory, The Affiliated Hospital of Nanjing Medical University, Changzhou No. 2 People's Hospital, Changzhou, Jiangsu 213003, P.R. China
| | - Liming Tang
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Nanjing Medical University, Changzhou No. 2 People's Hospital, Changzhou, Jiangsu 213003, P.R. China
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Chen L, Wang J, Yi J, Liu Y, Yu Z, Chen S, Liu X. Increased mucin-degrading bacteria by high protein diet leads to thinner mucus layer and aggravates experimental colitis. J Gastroenterol Hepatol 2021; 36:2864-2874. [PMID: 34050560 DOI: 10.1111/jgh.15562] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/22/2021] [Accepted: 05/25/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIM Westernized high-fat diet increases the risk for inflammatory bowel diseases (IBDs), yet with insufficient understanding of the role of high-protein diet. We aimed to identify the effect of high-protein diets from different dietary proteins (casein, whey protein, soy protein) on experimental colitis and its impact on microbiota, structure and function of colonic mucus layer. METHODS Female BALB/c mice were fed by standard diet, high-casein diet (HCD), high whey protein diet or high soy protein diet for 4 weeks. The susceptibility of dextran sulfate sodium (DSS)-induced colitis in mice and thickness of colonic mucus layer were compared after different dietary interventions, associated with the identification of the reversal effect of broad-spectrum antibiotic intervention (0.5 g/L of vancomycin and 1 g/L of neomycin sulfate, metronidazole and ampicillin in drinking water). Further analysis was performed on the synthesis of mucin, microbiota and sialidase involved in degradation of mucus layer. RESULTS High-protein diets aggravated acute DSS-induced colitis independent of protein composition, while broad-spectrum antibiotics reversed this effect. HCD significantly altered the composition of bacteria in the colonic mucus layer, especially Bacteroides thetaiotaomicron and total mucin-degrading bacteria; besides, it increased sialidase concentration and reduced the thickness of mucus layer. However, it exhibited no significant effect on the synthesis of Muc2. Broad-spectrum antibiotics decreased the abundance of mucin-degrading bacteria and sialidase concentration while increased the thickness of mucus layer. CONCLUSION High-protein diet shifts microbial composition and thickness of colonic mucus layer, leading to the aggravation of acute DSS-induced colitis.
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Affiliation(s)
- Lulu Chen
- Department of Gastroenterology, Xiangya Hospital Central South University, Changsha, China.,Hunan International Scientific and Technological Cooperation Base of Artificial Intelligence Computer Aided Diagnosis and Treatment for Digestive Disease, Changsha, China
| | - Jingyan Wang
- Department of Microbiology, School of Basic Medical Science Central South University, Changsha, China
| | - Jun Yi
- Department of Gastroenterology, Xiangya Hospital Central South University, Changsha, China.,Hunan International Scientific and Technological Cooperation Base of Artificial Intelligence Computer Aided Diagnosis and Treatment for Digestive Disease, Changsha, China
| | - Yajun Liu
- Department of Gastroenterology, Xiangya Hospital Central South University, Changsha, China.,Hunan International Scientific and Technological Cooperation Base of Artificial Intelligence Computer Aided Diagnosis and Treatment for Digestive Disease, Changsha, China
| | - Zheng Yu
- Department of Microbiology, School of Basic Medical Science Central South University, Changsha, China
| | - Shuijiao Chen
- Department of Gastroenterology, Xiangya Hospital Central South University, Changsha, China.,Hunan International Scientific and Technological Cooperation Base of Artificial Intelligence Computer Aided Diagnosis and Treatment for Digestive Disease, Changsha, China
| | - Xiaowei Liu
- Department of Gastroenterology, Xiangya Hospital Central South University, Changsha, China.,Hunan International Scientific and Technological Cooperation Base of Artificial Intelligence Computer Aided Diagnosis and Treatment for Digestive Disease, Changsha, China
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Zhang L, Li M, Zhang G, Gao C, Wang S, Zhang T, Ma C, Wang L, Zhu Q. Micro- and Nanoencapsulated Hybrid Delivery System (MNEHDS): A Novel Approach for Colon-Targeted Oral Delivery of Berberine. Mol Pharm 2021; 18:1573-1581. [PMID: 33629860 DOI: 10.1021/acs.molpharmaceut.0c00970] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Berberine (BBR) is currently explored in the oral treatment of many disorders, especially in those involving inflammatory processes. Nanotechnology-based drug delivery systems are emerging as an effective approach for improving the poor oral absorption/bioavailability of BBR. To optimize the BBR immunoregulatory effects on a specific part of the gastrointestinal tract, here we describe a micro- and nanoencapsulated hybrid delivery system (MNEHDS) for colon-targeted oral delivery of BBR and test its therapeutic efficacy in a murine colitis model. The MNEHDS is formed by encapsulation of BBR-loaded poly(lactic-co-glycolic acid) nanoparticles into a pH-sensitive, BBR-pre-entrapped Eudragit FS30D matrix to form a hybrid microparticle composed of the BBR and BBR nanoparticles. Once in the colonic environment, the microencapsulated BBR is almost completely released for immediate action, while BBR nanoparticles can provide sustained release of BBR subsequent to their intestinal absorption. One dose of oral MNEHDS/BBR treatment results in significant attenuation of acute colitis induced by dextran sulfate sodium. The MNEHDS/BBR also proves to be effective during chronically induced colitis with two doses given 1 week apart. The improved efficacy is accompanied by decreased production of colon inflammation. Comparatively, oral treatment with one or two 7-day courses of free BBR has less effect on ameliorating either acute or chronic colitis. Thus, MNEHDS represents a novel delivery system for BBR, and potentially other therapeutic agents, to treat inflammatory bowel disease.
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Affiliation(s)
- Lingzhi Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Chinese Academy of Medical Sciences and Peking Union Medical College Institute of Materia Medica, Beijing 100050, China
| | - Mingyan Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Chinese Academy of Medical Sciences and Peking Union Medical College Institute of Materia Medica, Beijing 100050, China
| | - Guiqiu Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Chinese Academy of Medical Sciences and Peking Union Medical College Institute of Materia Medica, Beijing 100050, China
| | - Changxing Gao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Chinese Academy of Medical Sciences and Peking Union Medical College Institute of Materia Medica, Beijing 100050, China
| | - Shengfang Wang
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China.,College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, P. R. China
| | - Tingting Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Chinese Academy of Medical Sciences and Peking Union Medical College Institute of Materia Medica, Beijing 100050, China
| | - Chen Ma
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Chinese Academy of Medical Sciences and Peking Union Medical College Institute of Materia Medica, Beijing 100050, China
| | - Lianyan Wang
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Qing Zhu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Chinese Academy of Medical Sciences and Peking Union Medical College Institute of Materia Medica, Beijing 100050, China
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Nakajima A, Sasaki T, Itoh K, Kitahara T, Takema Y, Hiramatsu K, Ishikawa D, Shibuya T, Kobayashi O, Osada T, Watanabe S, Nagahara A. A Soluble Fiber Diet Increases Bacteroides fragilis Group Abundance and Immunoglobulin A Production in the Gut. Appl Environ Microbiol 2020; 86:e00405-20. [PMID: 32332136 DOI: 10.1128/AEM.00405-20] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/15/2020] [Indexed: 12/12/2022] Open
Abstract
Immunoglobulin A (IgA) is essential for defense of the intestinal mucosa against harmful pathogens. Previous studies have shown that Bacteroidetes, the major phylum of gut microbiota together with Firmicutes, impact IgA production. However, the relative abundances of species of Bacteroidetes responsible for IgA production were not well understood. In the present study, we identified some specific Bacteroidetes species that were associated with gut IgA induction by hsp60-based profiling of species distribution among Bacteroidetes The levels of IgA and the expression of the gene encoding activation-induced cytidine deaminase (AID) in the large intestine lamina propria, which is crucial for class switch recombination from IgM to IgA, were increased in soluble high-fiber diet (sHFD)-fed mice. We found that Bacteroides acidifaciens was the most abundant Bacteroidetes species in both sHFD- and normal diet-fed mice. In addition, the gut IgA levels were associated with the relative abundance of Bacteroides fragilis group species such as Bacteroides faecis, Bacteroides caccae, and Bacteroides acidifaciens Conversely, the ratio of B. acidifaciens to other Bacteroidetes species was reduced in insoluble high-fiber diet fed- and no-fiber diet-fed mice. To investigate whether B. acidifaciens increases IgA production, we generated B. acidifaciens monoassociated mice and found increased gut IgA production and AID expression. Collectively, soluble dietary fiber increases the ratio of gut Bacteroides fragilis group, such as B. acidifaciens, and IgA production. This might improve gut immune function, thereby protecting against bowel pathogens and reducing the incidence of inflammatory bowel diseases.IMPORTANCE Immunoglobulin A (IgA) is essential for defense of the intestinal mucosa against harmful pathogens. Gut microbiota impact IgA production, but the specific species responsible for IgA production remain largely elusive. Previous studies have shown that IgA and Bacteroidetes, the major phyla of gut microbiota, were increased in soluble high-fiber diet-fed mice. We show here that the levels of IgA in the gut and the expression of activation-induced cytidine deaminase (AID) in the large intestine lamina propria, which is crucial for class switch recombination from IgM to IgA, were correlated with the abundance of Bacteroides fragilis group species such as Bacteroides faecis, Bacteroides caccae, and Bacteroides acidifaciens B. acidifaciens monoassociated mice increased gut IgA production and AID expression. Soluble dietary fiber may improve gut immune function, thereby protecting against bowel pathogens and reducing inflammatory bowel diseases.
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Wasilewska E, Zlotkowska D, Wroblewska B. Yogurt starter cultures of Streptococcus thermophilus and Lactobacillus bulgaricus ameliorate symptoms and modulate the immune response in a mouse model of dextran sulfate sodium-induced colitis. J Dairy Sci 2018; 102:37-53. [PMID: 30343915 DOI: 10.3168/jds.2018-14520] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 08/29/2018] [Indexed: 12/19/2022]
Abstract
We investigated the yogurt starter cultures of Lactobacillus bulgaricus 151 and Streptococcus thermophilus MK-10 for their effect on the severity of experimental colitis, lymphocyte profile, and regulatory T-cell response. Colitis was induced in BALB/c mice via the administration of 3.5% dextran sulfate sodium salt (DSS) in drinking water for 6 d. Next, the mice were gavaged intragastrically with an active yogurt cultures (YC) mixture (∼5 × 109 cfu/mouse per day) or saline (vehicle) for 8 d. Mice receiving DSS or saline alone served as positive and negative controls, respectively. The length of the colon, disease activity index, histological scores, myeloperoxidase activity, epithelium-associated microbes, short-chain fatty acid profile, total IgA antibody-forming cells, CD3+CD8+, CD3+CD4+, CD3+CD4+CD25+, CD3+CD4+CD25+Foxp3+ T-cell subsets, and cytokine profiles (IL-2, IL-4, IL-6, IL-10, IL-17A, IFN-γ, and tumor necrosis factor) were examined after termination of the mice. Feeding mice with YC mixture reduced disease symptoms and modified intestinal microbiota and host inflammatory responsiveness to DSS. We observed limited weight loss and a decreased disease activity index score, lowered myeloperoxidase activity, and somewhat reduced damage of the intestine. The YC mixture upregulated the colon length, increased the amount and diversity of mucosa-associated microbes (enterobacteria, enterococci, and yeast), and decreased the concentration of putrefactive short-chain fatty acids in the cecal contents. It downregulated the input of cytotoxic CD3+CD8+ T cells and CD3+CD4+CD25+FoxP3+ regulatory T cells in Peyer's patches and enhanced CD3+CD4+CD25+ T cells in spleens and CD3+CD4+CD25+FoxP3+ cells in peripheral blood mononuclear cells. Simultaneously, IgA antibody-forming cells were downregulated in mesenteric lymph nodes (MLN) and enhanced in spleens (SPL). The cultures mostly enhanced the production of cytokines tested in MLN and SPL, except for IL-6, which was downregulated in MLN. Interleukin-2 and IL-4 were the most upregulated in MLN, whereas IL-10, IL-4, IL-2, IFN-γ, and tumor necrosis factor were most upregulated in SPL. In serum, the YC mixture downregulated IFN-γ and clearly increased IL-2. Based on these results, we recognize the high anti-inflammatory and immunomodulatory potential of the L. bulgaricus 151 and S. thermophilus MK-10 set. The strains possess the ability to modulate the intestinal mucosal and systemic immune system toward both IgA production and induction of regulatory T cells, shifting Th1/Th2 balance.
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Affiliation(s)
- E Wasilewska
- Department of Immunology and Food Microbiology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748 Olsztyn, Poland.
| | - D Zlotkowska
- Department of Immunology and Food Microbiology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748 Olsztyn, Poland
| | - B Wroblewska
- Department of Immunology and Food Microbiology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748 Olsztyn, Poland
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Hayashi S, Hamada T, Zaidi SF, Oshiro M, Lee J, Yamamoto T, Ishii Y, Sasahara M, Kadowaki M. Nicotine suppresses acute colitis and colonic tumorigenesis associated with chronic colitis in mice. Am J Physiol Gastrointest Liver Physiol 2014; 307:G968-78. [PMID: 25258409 DOI: 10.1152/ajpgi.00346.2013] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Ulcerative colitis is a chronic inflammatory disease that frequently progresses to colon cancer. The tumor-promoting effect of inflammation is now widely recognized and understood. Recent studies have revealed that treatment with nicotine ameliorates colitis in humans and experimental murine models, whereas the effect of nicotine on colitis-associated colonic tumorigenesis remains unclear. In the present study, we examined the effect of nicotine on the development of acute colitis and colitis-associated cancer (CAC). The acute colitis model was induced by treatment with 3% dextran sulfate sodium (DSS) for 7 days, whereas the CAC model was induced by a combination of azoxymethane and repeated DSS treatment. Nicotine and a selective agonist of the α7-nicotinic acetylcholine receptor (α7-nAChR) reduced the severity of DSS-induced acute colonic inflammation. In addition, the suppressive effect of nicotine on acute colitis was attenuated by an antagonist of α7-nAChR. Furthermore, nicotine inhibited the IL-6 production of CD4 T cells in the DSS-induced inflamed colonic mucosa. We found that nicotine significantly reduced the number and size of colonic tumors in mice with CAC. Nicotine markedly inhibited the elevation of TNF-α and IL-6 mRNA as well as phosphorylated signal transducer and activator of transcription (Stat) 3 expression in the colons of the tumor model mice. These results demonstrate that nicotine suppresses acute colitis and colitis-associated tumorigenesis, and this effect may be associated with the activation of α7-nAChR. Furthermore, it is presumed that nicotine downregulates the expression of inflammatory mediators such as IL-6/Stat3 and TNF-α, thereby reducing the colonic tumorigenesis associated with chronic colitis.
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Affiliation(s)
- Shusaku Hayashi
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan; and
| | - Takayuki Hamada
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan; and
| | - Syed Faisal Zaidi
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan; and
| | - Momoe Oshiro
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan; and
| | - Jaemin Lee
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan; and
| | - Takeshi Yamamoto
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan; and
| | - Yoko Ishii
- Department of Pathology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Masakiyo Sasahara
- Department of Pathology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Makoto Kadowaki
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan; and
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Saksena S, Goyal S, Raheja G, Singh V, Akhtar M, Nazir TM, Alrefai WA, Gill RK, Dudeja PK. Upregulation of P-glycoprotein by probiotics in intestinal epithelial cells and in the dextran sulfate sodium model of colitis in mice. Am J Physiol Gastrointest Liver Physiol 2011; 300:G1115-23. [PMID: 21350189 PMCID: PMC3119110 DOI: 10.1152/ajpgi.00027.2011] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
P-glycoprotein (P-gp) mediates efflux of xenobiotics and bacterial toxins from the intestinal mucosa into the lumen. Dysregulation of P-gp has been implicated in inflammatory bowel disease. Certain probiotics have been shown to be effective in treating inflammatory bowel disease. However, direct effects of probiotics on P-gp are not known. Current studies examined the effects of Lactobacilli on P-gp function and expression in intestinal epithelial cells. Caco-2 monolayers and a mouse model of dextran sulfate sodium-induced colitis were utilized. P-gp activity was measured as verapamil-sensitive [(3)H]digoxin transepithelial flux. Multidrug resistant 1 (MDR1)/P-gp expression was measured by real-time quantitative PCR and immunoblotting. Culture supernatant (CS; 1:10 or 1:50, 24 h) of Lactobacillus acidophilus or Lactobacillus rhamnosus treatment of differentiated Caco-2 monolayers (21 days postplating) increased (∼3-fold) MDR1/P-gp mRNA and protein levels. L. acidophilus or L. rhamnosus CS stimulated P-gp activity (∼2-fold, P < 0.05) via phosphoinositide 3-kinase and ERK1/2 MAPK pathways. In mice, L. acidophilus or L. rhamnosus treatment (3 × 10(9) colony-forming units) increased mdr1a/P-gp mRNA and protein expression in the ileum and colon (2- to 3-fold). In the dextran sulfate sodium (DSS)-induced colitis model (3% DSS in drinking water for 7 days), the degree of colitis as judged by histological damage and myeloperoxidase activity was reduced by L. acidophilus. L. acidophilus treatment to DSS-treated mice blocked the reduced expression of mdr1a/P-gp mRNA and protein in the distal colon. These findings suggest that Lactobacilli or their soluble factors stimulate P-gp expression and function under normal and inflammatory conditions. These data provide insights into a novel mechanism involving P-gp upregulation in beneficial effects of probiotics in intestinal inflammatory disorders.
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Affiliation(s)
- Seema Saksena
- Section of Digestive Diseases and Nutrition, Department of Medicine, University of Illinois at Chicago, Jesse Brown Veterans Affairs Medical Center, 60612, USA.
| | - Sonia Goyal
- 1Section of Digestive Diseases and Nutrition, Department of Medicine, and
| | - Geetu Raheja
- 1Section of Digestive Diseases and Nutrition, Department of Medicine, and
| | - Varsha Singh
- 1Section of Digestive Diseases and Nutrition, Department of Medicine, and
| | - Maria Akhtar
- 1Section of Digestive Diseases and Nutrition, Department of Medicine, and
| | - Talat M. Nazir
- 2Department of Pathology, University of Illinois at Chicago and Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois
| | - Waddah A. Alrefai
- 1Section of Digestive Diseases and Nutrition, Department of Medicine, and
| | - Ravinder K. Gill
- 1Section of Digestive Diseases and Nutrition, Department of Medicine, and
| | - Pradeep K. Dudeja
- 1Section of Digestive Diseases and Nutrition, Department of Medicine, and
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