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Peng Y, Zhu J, Li Y, Yue X, Peng Y. Almond polysaccharides inhibit DSS-induced inflammatory response in ulcerative colitis mice through NF-κB pathway. Int J Biol Macromol 2024; 281:136206. [PMID: 39362427 DOI: 10.1016/j.ijbiomac.2024.136206] [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: 07/18/2024] [Revised: 09/18/2024] [Accepted: 09/30/2024] [Indexed: 10/05/2024]
Abstract
Ulcerative colitis (UC), a type of inflammatory bowel disease (IBD), is a chronic recurrent inflammatory disease of the colon. Our previous findings demonstrated that almond polysaccharide (AP-1) exhibits significant anti-inflammatory activity in vitro. Therefore, this study aimed to explore the ameliorative effect of AP-1 on dextrose sodium sulfate (DSS)-induced UC mice and to elucidate its possible mechanism of action. By observing changes in body weight, fecal viscosity, stool blood, disease activity index, and colon length, we found that AP-1 attenuated inflammation. It inhibited TNF-α, IL-1β, and IL-6 while boosting anti-inflammatory IL-10 levels. Histomorphologically, AP-1 protected against DSS-induced colonic tissue damage by reducing inflammatory cell infiltration and mucosal injury. It also lowered myeloperoxidase (MPO) and NO while increasing total superoxide dismutase (T-SOD) and glutathione peroxidase (GSH-Px) in colonic tissues. Moreover, using the Western blot technique, AP-1 was shown to inhibit the phosphorylation of p65 and IκB-α proteins in the NF-κB/iNOS/COX2 signaling pathway and down-regulate the expression of inflammation-associated proteins COX2 and iNOS, thus slowing down and ameliorating inflammatory processes. Therefore, the safe and effective beneficial effects of AP-1 make it a promising therapeutic strategy for relieving IBD, especially UC.
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Affiliation(s)
- Yanqi Peng
- Department of Food Science, College of Public Health, Shenyang Medical College, Shenyang 110034, China; College of Food Science, Shenyang Agricultural University, Shenyang 110866, China
| | - Jiayi Zhu
- College of Public Health, Shenyang Medical College, Shenyang 110034, China
| | - Yingshuo Li
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China
| | - Xiqing Yue
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Yanyu Peng
- Department of Histology and Embryology, Shenyang Medical College, Shenyang 110034, China; Key Laboratory of Human Ethnic Specificity and Phenomics of Critical Illness in Liaoning Province, China.
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2
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Huang J, Zhang J, Wang F, Tang X. Modified Gegen Qinlian Decoction modulated the gut microbiome and bile acid metabolism and restored the function of goblet cells in a mouse model of ulcerative colitis. Front Immunol 2024; 15:1445838. [PMID: 39165355 PMCID: PMC11333261 DOI: 10.3389/fimmu.2024.1445838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Accepted: 07/15/2024] [Indexed: 08/22/2024] Open
Abstract
Objective Modified Gegen Qinlian Decoction (MGQD) has been shown to effectively relieve ulcerative colitis (UC) without a known pharmacological mechanism. In this study, the anti-colitis efficaciousness of MGQD and its underlying mechanisms in UC were evaluated. Methods Mice with colitis were administered MGQD for 7 days. Following the evaluation of clinical symptoms, gut microbiota in the feces of UC mice was examined using 16S rRNA sequencing and bile acids (BAs) were examined using LC/MS. Gut microbiota consumption and fecal microbiota transplantation (FMT) were used to explore the involvement of gut microbiota in the anti-UC action of MGQD. Results MGQD relieved colitis as shown by weight loss protection, a lower disease activity index (DAI), restoration of intestinal length reduction, and lower histopathologic scores. MGQD also restored crypt stem cell proliferation and function of colonic goblet cells, and promoted MUC2 protein secretion. Interestingly, investigations using gut bacterial depletion and FMT showed that MGQD attenuated colonic damage in a gut-dependent way. The modulation of the gut microbiota by MGQD might be attributed to a decrease in Odoribacter and an increase in norank_f_Muribaculaceae. In addition, MGQD modulated the metabolism of BAs while restoring the structure of the gut microbiota. Conclusion MGQD significantly alleviated colitis in mice, which may be associated with the modulation of gut microbiota and BA metabolism and restoration of function of goblet cells. However, factors other than the gut microbiota may also be involved in the amelioration of UC by MGQD.
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Affiliation(s)
- Jinke Huang
- Department of Gastroenterology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Jiaqi Zhang
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Fengyun Wang
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Xudong Tang
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
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Li Y, Wu L, Yong Y, Niu X, Gao Y, Zhou Q, Xie H, Liu X, Li Y, Yu Z, Abd El-Aty AM, Ju X. Enhancing gut barrier integrity: Upregulation of tight junction proteins by chitosan oligosaccharide through the ERK1/2 signaling pathway. Nutrition 2024; 124:112428. [PMID: 38663127 DOI: 10.1016/j.nut.2024.112428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/29/2024] [Accepted: 03/15/2024] [Indexed: 06/17/2024]
Abstract
OBJECTIVES This study aimed to explore the protective mechanism of chitosan oligosaccharide (COS) against lipopolysaccharide (LPS)-induced inflammatory responses in IEC-6 cells and dextran sodium sulfate (DSS)-induced colitis in mice. METHODS The cell inflammation model was constructed by LPS in vitro and enteritis model by DSS in vivo. RESULTS Following LPS exposure, IEC-6 cell proliferation significantly decreased, epithelial cell integrity was compromised, and TNF-α and IL-1β levels were increased. However, COS pretreatment reversed these changes. In vivo, DSS-treated mice exhibited evident pathological alterations, including heightened inflammatory levels and significantly decreased expression of tight junction proteins and critical proteins in the Mitogen activated proteins kinase signaling pathway. Nevertheless, COS administration notably reduced inflammatory levels and increased the expression of tight junction proteins and key proteins in the Mitogen activated proteins kinase signaling pathway. CONCLUSIONS Our findings suggest that COS safeguards gut barrier integrity by upregulating tight junction proteins through the ERK1/2 signaling pathway. Therefore, COS has emerged as a promising candidate for novel drug interventions against inflammatory bowel disease.
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Affiliation(s)
- Yin Li
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China; Marine Medical Research and Development Centre, Shenzheng Institute of Guangdong Ocean University, Shenzheng, China
| | - Lianyun Wu
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Yanhong Yong
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Xueting Niu
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China; Marine Medical Research and Development Centre, Shenzheng Institute of Guangdong Ocean University, Shenzheng, China
| | - Yuan Gao
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China; Marine Medical Research and Development Centre, Shenzheng Institute of Guangdong Ocean University, Shenzheng, China
| | - Qiu Zhou
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China; Marine Medical Research and Development Centre, Shenzheng Institute of Guangdong Ocean University, Shenzheng, China
| | - Huili Xie
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China; Marine Medical Research and Development Centre, Shenzheng Institute of Guangdong Ocean University, Shenzheng, China
| | - Xiaoxi Liu
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Youquan Li
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Zhichao Yu
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - A M Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt; Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum, Turkey
| | - Xianghong Ju
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China; Marine Medical Research and Development Centre, Shenzheng Institute of Guangdong Ocean University, Shenzheng, China.
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4
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Liu T, Wang Y, Hou Z, Shi Z, Wang R, Shi Y, Hua L, Wu L, Xu M, Ding X, Sun Q. Effects of antibiotic cocktail on the fecal microbiota and their potential correlation of local immune response. BMC Microbiol 2024; 24:283. [PMID: 39085808 PMCID: PMC11290084 DOI: 10.1186/s12866-024-03424-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 07/11/2024] [Indexed: 08/02/2024] Open
Abstract
BACKGROUND The guts of mammals are home to trillions of microbes, forming a complex and dynamic ecosystem. Gut microbiota is an important biological barrier for maintaining immune homeostasis. Recently, the use of antibiotics to clear gut microbiota has gained popularity as a low cost and easy-to-use alternative to germ-free animals. However, the effect of the duration of the antibiotic cocktail on the gut microbiome is unclear, and more importantly, the effect of dramatic changes in the gut microbiota on intestinal tissue morphology and local immune response is rarely reported. RESULTS We observed a significant reduction in fecal microbiota species and abundance after 1 week of exposure to an antibiotic cocktail, gavage twice daily by intragastric administration. In terms of composition, Bacteroidetes and Firmicutes were replaced by Proteobacteria. Extending antibiotic exposure to 2-3 weeks did not significantly improve the overall efficiency of microbiotal consumption. No significant histomorphological changes were observed in the first 2 weeks of antibiotic cocktail exposure, but the expression of inflammatory mediators in intestinal tissue was increased after 3 weeks of antibiotic cocktail exposure. Mendelian randomization analysis showed that Actinobacteria had a significant causal association with the increase of IL-1β (OR = 1.65, 95% CI = 1.23 to 2.21, P = 0.007) and TNF-α (OR = 1.81, 95% CI = 1.26 to 2.61, P = 0.001). CONCLUSIONS Our data suggest that treatment with an antibiotic cocktail lasting 1 week is sufficient to induce a significant reduction in gut microbes. 3 weeks of antibiotic exposure can lead to the colonization of persistant microbiota and cause changes in intestinal tissue and local immune responses.
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Affiliation(s)
- Ting Liu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, No.584, Binwen Road, Hangzhou, 310053, Zhejiang Province, China
| | - Yin Wang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, No.584, Binwen Road, Hangzhou, 310053, Zhejiang Province, China
| | - Zhuoer Hou
- School of Nursing, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhenyu Shi
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Rongyun Wang
- School of Nursing, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yanan Shi
- School of Nursing, Zhejiang Chinese Medical University, Hangzhou, China
| | - Lijiangshan Hua
- School of Nursing, Zhejiang Chinese Medical University, Hangzhou, China
| | - Lingyun Wu
- School of Nursing, Zhejiang Chinese Medical University, Hangzhou, China
| | - Min Xu
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Xinghong Ding
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, No.584, Binwen Road, Hangzhou, 310053, Zhejiang Province, China
| | - Qiuhua Sun
- School of Nursing, Zhejiang Chinese Medical University, Hangzhou, China.
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Berce C. Artificial intelligence generated clinical score sheets: looking at the two faces of Janus. Lab Anim Res 2024; 40:21. [PMID: 38750604 PMCID: PMC11097593 DOI: 10.1186/s42826-024-00206-6] [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: 03/04/2024] [Revised: 04/22/2024] [Accepted: 04/28/2024] [Indexed: 05/18/2024] Open
Abstract
In vivo experiments are increasingly using clinical score sheets to ensure minimal distress to the animals. A score sheet is a document that includes a list of specific symptoms, behaviours and intervention guidelines, all balanced to for an objective clinical assessment of experimental animals. Artificial Intelligence (AI) technologies are increasingly being applied in the field of preclinical research, not only in analysis but also in documentation processes, reflecting a significant shift towards more technologically advanced research methodologies. The present study explores the application of Large Language Models (LLM) in generating score sheets for an animal welfare assessment in a preclinical research setting. Focusing on a mouse model of inflammatory bowel disease, the study evaluates the performance of three LLM - ChatGPT-4, ChatGPT-3.5, and Google Bard - in creating clinical score sheets based on specified criteria such as weight loss, stool consistency, and visible fecal blood. Key parameters evaluated include the consistency of structure, accuracy in representing severity levels, and appropriateness of intervention thresholds. The findings reveal a duality in LLM-generated score sheets: while some LLM consistently structure their outputs effectively, all models exhibit notable variations in assigning numerical values to symptoms and defining intervention thresholds accurately. This emphasizes the dual nature of AI performance in this field-its potential to create useful foundational drafts and the critical need for professional review to ensure precision and reliability. The results highlight the significance of balancing AI-generated tools with expert oversight in preclinical research.
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Affiliation(s)
- Cristian Berce
- Animal Health and Welfare Division, Federal Food Safety and Veterinary Office, Bern, Switzerland.
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6
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Xiao N, He W, Chen S, Yao Y, Wu N, Xu M, Du H, Zhao Y, Tu Y. Protective Effect of Egg Yolk Lipids against Dextran Sulfate Sodium-Induced Colitis: The Key Role of Gut Microbiota and Short-Chain Fatty Acids. Mol Nutr Food Res 2024; 68:e2400048. [PMID: 38659317 DOI: 10.1002/mnfr.202400048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/13/2024] [Indexed: 04/26/2024]
Abstract
Egg yolk lipids significantly alleviate dextran sulfate sodium (DSS)-induced colitis by inhibiting NLRP3 inflammasome, reversing gut microbiota dysbiosis, and increasing short chain fatty acids (SCFAs) concentrations. However, the role of gut microbiota and the relationship between SCFAs and NLRP3 inflammasome are still unknown. Here, this study confirms that antibiotic treatment abolishes the protective effect of egg yolk lipids on DSS-induced colonic inflammation, intestinal barrier damage, and lipopolysaccharide translocation. Fecal microbiota transplantation also supports that egg yolk lipids alleviate colitis in a gut microbiota-dependent manner. Then, the study investigates the relationship between SCFAs and NLRP3 inflammasome, and finds that SCFAs significantly suppress colitis via inhibiting colonic NLRP3 inflammasome activation and proinflammatory cytokines secretions (interleukin, IL)-1β and IL-18, and combined treatment of SCFAs and MCC950 (NLRP3 inhibitor) shows a better activity against colitis and NLRP3 inflammasome activation. Together, these findings provide positive evidence for gut microbiorta-SCFAs-NLRP3 axis as a novel target involving in the therapy of inflammatory bowel disease.
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Affiliation(s)
- Nanhai Xiao
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Wen He
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Shuping Chen
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Yao Yao
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Na Wu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Mingsheng Xu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Huaying Du
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Yan Zhao
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Yonggang Tu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang, 330045, China
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7
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Wen C, Chen D, Zhong R, Peng X. Animal models of inflammatory bowel disease: category and evaluation indexes. Gastroenterol Rep (Oxf) 2024; 12:goae021. [PMID: 38634007 PMCID: PMC11021814 DOI: 10.1093/gastro/goae021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 02/12/2024] [Accepted: 02/29/2024] [Indexed: 04/19/2024] Open
Abstract
Inflammatory bowel disease (IBD) research often relies on animal models to study the etiology, pathophysiology, and management of IBD. Among these models, rats and mice are frequently employed due to their practicality and genetic manipulability. However, for studies aiming to closely mimic human pathology, non-human primates such as monkeys and dogs offer valuable physiological parallels. Guinea pigs, while less commonly used, present unique advantages for investigating the intricate interplay between neurological and immunological factors in IBD. Additionally, New Zealand rabbits excel in endoscopic biopsy techniques, providing insights into mucosal inflammation and healing processes. Pigs, with their physiological similarities to humans, serve as ideal models for exploring the complex relationships between nutrition, metabolism, and immunity in IBD. Beyond mammals, non-mammalian organisms including zebrafish, Drosophila melanogaster, and nematodes offer specialized insights into specific aspects of IBD pathology, highlighting the diverse array of model systems available for advancing our understanding of this multifaceted disease. In this review, we conduct a thorough analysis of various animal models employed in IBD research, detailing their applications and essential experimental parameters. These include clinical observation, Disease Activity Index score, pathological assessment, intestinal barrier integrity, fibrosis, inflammatory markers, intestinal microbiome, and other critical parameters that are crucial for evaluating modeling success and drug efficacy in experimental mammalian studies. Overall, this review will serve as a valuable resource for researchers in the field of IBD, offering insights into the diverse array of animal models available and their respective applications in studying IBD.
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Affiliation(s)
- Changlin Wen
- Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, Sichuan, P. R. China
| | - Dan Chen
- Acupuncture and Moxibustion School of Teaching, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, P. R. China
| | - Rao Zhong
- Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, Sichuan, P. R. China
| | - Xi Peng
- Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, Sichuan, P. R. China
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Li W, Zhang Y, Chen M, Guo X, Ding Z. The antioxidant strain Lactiplantibacillus plantarum AS21 and Clostridium butyricum ameliorate DSS-induced colitis in mice by remodeling the assembly of intestinal microbiota and improving gut functions. Food Funct 2024; 15:2022-2037. [PMID: 38289370 DOI: 10.1039/d3fo05337g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Probiotics are known for their beneficial effects on improving intestinal function by alleviating the gut microbial diversity. However, the influences of antioxidant lactic acid bacteria (LAB) and anti-inflammatory Clostridium butyricum (CB) on ameliorating enteritis remain unclear. In this study, we investigated the effects of the antioxidant strain Lactiplantibacillus plantarum AS21 and CB alone, or in combination on intestinal microbiota, barrier function, oxidative stress and inflammation in mice with DSS-induced colitis. All probiotic treatments relieved the pathological development of colitis by improving the integrity of the intestinal mucosal barrier and the length of the colon. The probiotics also suppressed inflammation and oxidative stress by improving gut short-chain fatty acids and inhibiting the p38-MAPK/NF-κB pathway in colon tissues. According to the meta-network analysis, three distinct modules containing sensitive OTUs of the gut bacterial community specific to the control, DSS and DSS + probiotics groups were observed, and unlike the other two modules, Lachnospiraceae and Clostridia dominated the sensitive OTUs in the DSS + probiotics group. In addition, administration of the present probiotics particularly increased antioxidant and anti-inflammatory microbes Muribaculaceae, Bifidobacterium, Prevotellaceae and Alloprevotella. Furthermore, combined probiotic strain treatment showed a more stable anti-colitis effect than a single probiotic strain. Collectively, the present probiotics exhibited protective effects against colitis by suppressing the inflammation and oxidative damage in the colon, improving the gut microbiota and their functions, and consequently preventing the gut leak. The results indicate that the combination of the antioxidant properties of LAB and the anti-inflammatory properties of CB as nutritional intervention and adjuvant therapy could be an effective strategy to prevent and alleviate colitis.
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Affiliation(s)
- Wenyuan Li
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
- Probiotics and Life Health Institute, Lanzhou University, Lanzhou 730000, PR China
| | - Ying Zhang
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
- Probiotics and Life Health Institute, Lanzhou University, Lanzhou 730000, PR China
| | - Mengyan Chen
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
- Probiotics and Life Health Institute, Lanzhou University, Lanzhou 730000, PR China
| | - Xusheng Guo
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
- Probiotics and Life Health Institute, Lanzhou University, Lanzhou 730000, PR China
| | - Zitong Ding
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
- Probiotics and Life Health Institute, Lanzhou University, Lanzhou 730000, PR China
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9
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Chen S, Li M, Tong C, Wang Y, He J, Shao Q, Liu Y, Wu Y, Song Y. Regulation of miRNA expression in the prefrontal cortex by fecal microbiota transplantation in anxiety-like mice. Front Psychiatry 2024; 15:1323801. [PMID: 38410679 PMCID: PMC10894985 DOI: 10.3389/fpsyt.2024.1323801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 01/29/2024] [Indexed: 02/28/2024] Open
Abstract
Background The gut-brain axis and gut microbiota have emerged as key players in emotional disorders. Recent studies suggest that alterations in gut microbiota may impact psychiatric symptoms through brain miRNA along the gut-brain axis. However, direct evidence linking gut microbiota to the pathophysiology of generalized anxiety disorder (GAD) via brain miRNA is limited. In this study, we explored the effects of fecal microbiota transplantation (FMT) from GAD donors on gut microbiota and prefrontal cortex miRNA in recipient mice, aiming to understand the relationship between these two factors. Methods Anxiety scores and gut microbiota composition were assessed in GAD patients, and their fecal samples were utilized for FMT in C57BL/6J mice. Anxiety-like behavior in mice was evaluated using open field and elevated plus maze tests. High-throughput sequencing of gut microbiota 16S rRNA and prefrontal cortex miRNA was performed. Results The fecal microbiota of GAD patients exhibited a distinct microbial structure compared to the healthy group, characterized by a significant decrease in Verrucomicrobia and Akkermansia, and a significant increase in Actinobacteria and Bacteroides. Subsequent FMT from GAD patients to mice induced anxiety-like behavior in recipients. Detailed analysis of gut microbiota composition revealed lower abundances of Verrucomicrobia, Akkermansia, Bifidobacterium, and Butyricimonas, and higher abundances of Deferribacteres, Allobaculum, Bacteroides, and Clostridium in mice that received FMT from GAD patients. MiRNA analysis identified five key miRNAs affecting GAD pathogenesis, including mmu-miR-10a-5p, mmu-miR-1224-5p, mmu-miR-218-5p, mmu-miR-10b-5p, and mmu-miR-488-3p. Notably, mmu-miR-488-3p showed a strong negative correlation with Verrucomicrobia and Akkermansia. Conclusion This study demonstrates that anxiety-like behavior induced by human FMT can be transmitted through gut microbiota and is associated with miRNA expression in the prefrontal cortex. It is inferred that the reduction of Akkermansia caused by FMT from GAD patients leads to the upregulation of mmu-miR-488-3p expression, resulting in the downregulation of its downstream target gene Creb1 and interference with its related signaling pathway. These findings highlight the gut microbiota's crucial role in the GAD pathophysiology.
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Affiliation(s)
- Simin Chen
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Mengjia Li
- College of Life Science, Beijing University of Chinese Medicine, Beijing, China
| | - Changqing Tong
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yanan Wang
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Jiahui He
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Qi Shao
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yan Liu
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Ying Wu
- Liuzhou Key laboratory of infection disease and immunology, Research Center of Medical Sciences, Liuzhou People's Hospital affiliated to Guangxi Medical University, Liuzhou, Guangxi, China
| | - Yuehan Song
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
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10
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Yang J, Lin J, Gu T, Sun Q, Xu W, Peng Y. Chicoric Acid Effectively Mitigated Dextran Sulfate Sodium (DSS)-Induced Colitis in BALB/c Mice by Modulating the Gut Microbiota and Fecal Metabolites. Int J Mol Sci 2024; 25:841. [PMID: 38255916 PMCID: PMC10815209 DOI: 10.3390/ijms25020841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Chicoric acid (CA) has been reported to exhibit biological activities; it remains unclear, however, whether CA could regulate colitis via modulation of the gut microbiota and metabolites. This study aimed to assess CA's impact on dextran sulfate sodium (DSS)-induced colitis, the gut microbiota, and metabolites. Mice were induced with 2.5% DSS to develop colitis over a 7-day period. CA was administered intragastrically one week prior to DSS treatment and continued for 14 days. The microbial composition in the stool was determined using 16S rRNA sequencing, while non-targeted metabolomics was employed to analyze the metabolic profiles of each mouse group. The results show that CA effectively alleviated colitis, as evidenced by an increased colon length, lowered disease activity index (DAI) and histological scores, and decreased tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) expression levels. CA intervention restored the structure of gut microbiota. Specifically, it decreased the abundance of Bacteroidetes and Cyanobacteria at the phylum level and Bacteroides, Rosiarcus, and unclassified Xanthobacteraceae at the genus level, and increased the abundance of unclassified Lachnospiraceae at the genus level. Metabolomic analysis revealed that CA supplementation reversed the up-regulation of asymmetric dimethylarginine, N-glycolylneuraminic acid, and N-acetylneuraminic acid, as well as the down-regulation of phloroglucinol, thiamine, 4-methyl-5-thiazoleethanol, lithocholic acid, and oxymatrine induced by DSS. Our current research provides scientific evidence for developing CA into an anti-colitis functional food ingredient. Further clinical trials are warranted to elucidate the efficacy and mechanism of CA in treating human inflammatory bowel disease (IBD).
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Affiliation(s)
- Jiani Yang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (J.Y.); (T.G.)
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Jie Lin
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32306, USA; (J.L.); (Q.S.)
| | - Ting Gu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (J.Y.); (T.G.)
| | - Quancai Sun
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32306, USA; (J.L.); (Q.S.)
| | - Weidong Xu
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, China
| | - Ye Peng
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
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11
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Lauko S, Gancarcikova S, Hrckova G, Hajduckova V, Andrejcakova Z, Fecskeova LK, Bertkova I, Hijova E, Kamlarova A, Janicko M, Ambro L, Kvakova M, Gulasova Z, Strojny L, Strkolcova G, Mudronova D, Madar M, Demeckova V, Nemetova D, Pacuta I, Sopkova D. Beneficial Effect of Faecal Microbiota Transplantation on Mild, Moderate and Severe Dextran Sodium Sulphate-Induced Ulcerative Colitis in a Pseudo Germ-Free Animal Model. Biomedicines 2023; 12:43. [PMID: 38255150 PMCID: PMC10813722 DOI: 10.3390/biomedicines12010043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 01/24/2024] Open
Abstract
Transplantation of faecal microbiota (FMT) is generally considered a safe therapeutic procedure with few adverse effects. The main factors that limit the spread of the use of FMT therapy for idiopathic inflammatory bowel disease (IBD) are the necessity of minimising the risk of infection and transfer of another disease. Obtaining the animal model of UC (ulcerative colitis) by exposure to DSS (dextran sodium sulphate) depends on many factors that significantly affect the result. Per os intake of DSS with water is individual for each animal and results in the development of a range of various forms of induced UC. For this reason, the aim of our study was to evaluate the modulation and regenerative effects of FMT on the clinical and histopathological responses and the changes in the bowel microenvironment in pseudo germ-free (PGF) mice of the BALB/c line subjected to chemical induction of mild, moderate and serious forms of UC. The goal was to obtain new data related to the safety and effectiveness of FMT that can contribute to its improved and optimised use. The animals with mild and moderate forms of UC subjected to FMT treatment exhibited lower severity of the disease and markedly lower damage to the colon, including reduced clinical and histological disease index and decreased inflammatory response of colon mucosa. However, FMT treatment failed to achieve the expected therapeutic effect in animals with the serious form of UC activity. The results of our study indicated a potential safety risk involving development of bacteraemia and also translocation of non-pathogenic representatives of bowel microbiota associated with FMT treatment of animals with a diagnosed serious form of UC.
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Affiliation(s)
- Stanislav Lauko
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, 041 81 Kosice, Slovakia; (S.L.); (V.H.); (D.M.); (M.M.); (D.N.); (I.P.)
| | - Sona Gancarcikova
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, 041 81 Kosice, Slovakia; (S.L.); (V.H.); (D.M.); (M.M.); (D.N.); (I.P.)
| | - Gabriela Hrckova
- Institute of Parasitology, Slovak Academy of Sciences, 041 81 Kosice, Slovakia;
| | - Vanda Hajduckova
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, 041 81 Kosice, Slovakia; (S.L.); (V.H.); (D.M.); (M.M.); (D.N.); (I.P.)
| | - Zuzana Andrejcakova
- Department of Biology and Physiology, University of Veterinary Medicine and Pharmacy in Kosice, 041 81 Kosice, Slovakia; (Z.A.); (D.S.)
| | - Livia Kolesar Fecskeova
- Associated Tissue Bank, Faculty of Medicine, Pavol Jozef Safarik University and Louis Pasteur University Hospital (UHLP) in Kosice, 040 11 Kosice, Slovakia;
| | - Izabela Bertkova
- Center of Clinical and Preclinical Research—MEDIPARK, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, 040 11 Kosice, Slovakia; (I.B.); (E.H.); (A.K.); (M.K.); (Z.G.); (L.S.)
| | - Emilia Hijova
- Center of Clinical and Preclinical Research—MEDIPARK, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, 040 11 Kosice, Slovakia; (I.B.); (E.H.); (A.K.); (M.K.); (Z.G.); (L.S.)
| | - Anna Kamlarova
- Center of Clinical and Preclinical Research—MEDIPARK, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, 040 11 Kosice, Slovakia; (I.B.); (E.H.); (A.K.); (M.K.); (Z.G.); (L.S.)
| | - Martin Janicko
- 2nd Department of Internal Medicine, Faculty of Medicine, Pavol Jozef Safarik University and Louis Pasteur University Hospital in Kosice, 040 11 Kosice, Slovakia;
| | - Lubos Ambro
- Center for Interdisciplinary Biosciences, Technology and Innovation Park, Pavol Jozef Safarik University in Kosice, 040 01 Kosice, Slovakia;
| | - Monika Kvakova
- Center of Clinical and Preclinical Research—MEDIPARK, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, 040 11 Kosice, Slovakia; (I.B.); (E.H.); (A.K.); (M.K.); (Z.G.); (L.S.)
| | - Zuzana Gulasova
- Center of Clinical and Preclinical Research—MEDIPARK, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, 040 11 Kosice, Slovakia; (I.B.); (E.H.); (A.K.); (M.K.); (Z.G.); (L.S.)
| | - Ladislav Strojny
- Center of Clinical and Preclinical Research—MEDIPARK, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, 040 11 Kosice, Slovakia; (I.B.); (E.H.); (A.K.); (M.K.); (Z.G.); (L.S.)
| | - Gabriela Strkolcova
- Department of Epizootiology, Parasitology and Protection of One Health, University of Veterinary Medicine and Pharmacy in Kosice, 041 81 Kosice, Slovakia;
| | - Dagmar Mudronova
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, 041 81 Kosice, Slovakia; (S.L.); (V.H.); (D.M.); (M.M.); (D.N.); (I.P.)
| | - Marian Madar
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, 041 81 Kosice, Slovakia; (S.L.); (V.H.); (D.M.); (M.M.); (D.N.); (I.P.)
| | - Vlasta Demeckova
- Department of Animal Physiology, Institute of Biology and Ecology, Faculty of Science, Pavol Jozef Safarik University in Kosice, 040 01 Kosice, Slovakia;
| | - Daniela Nemetova
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, 041 81 Kosice, Slovakia; (S.L.); (V.H.); (D.M.); (M.M.); (D.N.); (I.P.)
| | - Ivan Pacuta
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, 041 81 Kosice, Slovakia; (S.L.); (V.H.); (D.M.); (M.M.); (D.N.); (I.P.)
| | - Drahomira Sopkova
- Department of Biology and Physiology, University of Veterinary Medicine and Pharmacy in Kosice, 041 81 Kosice, Slovakia; (Z.A.); (D.S.)
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12
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Schmid R, Volcic M, Fischer S, Qu Z, Barth H, Popat A, Kirchhoff F, Lindén M. Surface functionalization affects the retention and bio-distribution of orally administered mesoporous silica nanoparticles in a colitis mouse model. Sci Rep 2023; 13:20175. [PMID: 37978264 PMCID: PMC10656483 DOI: 10.1038/s41598-023-47445-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 11/14/2023] [Indexed: 11/19/2023] Open
Abstract
Besides the many advantages of oral drug administration, challenges like premature drug degradation and limited bioavailability in the gastro-intestinal tract (GIT) remain. A prolonged residence time in the GIT is beneficial for enhancing the therapeutic outcome when treating diseases associated with an increased intestinal clearance rate, like inflammatory bowel disease (IBD). In this study, we synthesized rod-shaped mesoporous silica nanoparticles (MSNs) functionalized with polyethylene glycol (PEG) or hyaluronic acid (HA) and investigated their bio-distribution upon oral administration in vivo. The negatively charged, non-toxic particles showed different accumulation behavior over time in healthy mice and in mice with dextran sulfate sodium (DSS)-induced intestinal inflammation. PEGylated particles were shown to accumulate in the lower intestinal tract of healthy animals, whereas inflammation promoted retention of HA-functionalized particles in this area. Overall systemic absorption was low. However, some particles were detected in organs of mice with DSS-induced colitis, especially in the case of MSN-PEG. The in vivo findings were connected to surface chemistry-related differences in particle adhesion on Caco-2/Raji and mucus-producing Caco-2/Raji/HT29 cell co-culture epithelial models in vitro. While the particle adhesion behavior in vivo was mirrored in the in vitro results, this was not the case for the resorption results, suggesting that the in vitro model does not fully reflect the erosion of the inflamed epithelial tissue. Overall, our study demonstrates the possibility to modulate accumulation and retention of MSNs in the GIT of mice with and without inflammation through surface functionalization, which has important implications for the formulation of nanoparticle-based delivery systems for oral delivery applications.
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Affiliation(s)
- Roman Schmid
- Inorganic Chemistry II, Ulm University, 89081, Ulm, Germany
| | - Meta Volcic
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Stephan Fischer
- Institute of Experimental and Clinical Pharmacology, and Toxicology and Pharmacology of Natural Products, Ulm University Medical Center, Ulm, Germany
| | - Zhi Qu
- School of Pharmacy, The University of Queensland, Brisbane, QLD, Australia
| | - Holger Barth
- Institute of Experimental and Clinical Pharmacology, and Toxicology and Pharmacology of Natural Products, Ulm University Medical Center, Ulm, Germany
| | - Amirali Popat
- School of Pharmacy, The University of Queensland, Brisbane, QLD, Australia
| | - Frank Kirchhoff
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Mika Lindén
- Inorganic Chemistry II, Ulm University, 89081, Ulm, Germany.
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13
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de Oliveira NMT, Schneider VS, Bueno LR, de Mello Braga LLV, da Silva KS, Malaquias da Silva LC, Souza ML, da Luz BB, Lima CD, Bastos RS, de Paula Werner MF, Fernandes ES, Rocha JA, Gois MB, Cordeiro LMC, Maria-Ferreira D. CPW partially attenuates DSS-induced ulcerative colitis in mice. Food Res Int 2023; 173:113334. [PMID: 37803644 DOI: 10.1016/j.foodres.2023.113334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/27/2023] [Accepted: 07/27/2023] [Indexed: 10/08/2023]
Abstract
Ulcerative colitis (UC) is a chronic inflammatory bowel disease (IBD) of the gastrointestinal tract. The etiology is not fully understood, but environmental, microbial, and immunologic factors, as well as a genetic predisposition, play a role. UC is characterized by episodes of abdominal pain, diarrhea, bloody stools, weight loss, severe colonic inflammation, and ulceration. Despite the increase in the frequency of UC and the deterioration of the quality of life, there are still patients who do not respond well to available treatment options. Against this background, natural products such as polysaccharides are becoming increasingly important as they protect the intestinal mucosa, promote wound healing, relieve inflammation and pain, and restore intestinal motility. In this study, we investigated the effect of a polysaccharide isolated from the biomass of Campomanesia adamantium and Campomanesia pubescens (here referred to as CPW) in an experimental model of acute and chronic ulcerative colitis induced by dextran sulfate sodium (DSS). CPW reversed weight loss, increased disease activity index (DAI), bloody diarrhea, and colon shortening. In addition, CPW reduced visceral mechanical hypersensitivity, controlled oxidative stress and inflammation, and protected the mucosal barrier. CPW is not absorbed in the intestine, does not inhibit cytochrome P450 proteins, and does not exhibit AMES toxicity. These results suggest that CPW attenuates DSS-induced acute and chronic colitis in mice and may be a potential alternative treatment for UC.
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Affiliation(s)
- Natalia Mulinari Turin de Oliveira
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, Paraná, Brazil
| | - Vanessa S Schneider
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, Paraná, Brazil
| | - Laryssa Regis Bueno
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, Paraná, Brazil
| | - Lara Luisa Valerio de Mello Braga
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, Paraná, Brazil
| | - Karien Sauruk da Silva
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, Paraná, Brazil
| | - Liziane Cristine Malaquias da Silva
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, Paraná, Brazil
| | - Maria Luiza Souza
- Faculdade de Ciências da Saúde, Universidade Federal de Rondonópolis, Rondonópolis, MT, Brazil
| | - Bruna Barbosa da Luz
- Departamento de Farmacologia, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | - Cleiane Dias Lima
- Programa de Pós-Graduação em Biotecnologia, PPGBIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, PI, Brazil
| | - Ruan Sousa Bastos
- Programa de Pós-Graduação em Biotecnologia, PPGBIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, PI, Brazil
| | | | - Elizabeth Soares Fernandes
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, Paraná, Brazil
| | - Jefferson Almeida Rocha
- Programa de Pós-Graduação em Biotecnologia, PPGBIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, PI, Brazil
| | - Marcelo Biondaro Gois
- Faculdade de Ciências da Saúde, Universidade Federal de Rondonópolis, Rondonópolis, MT, Brazil
| | | | - Daniele Maria-Ferreira
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, Paraná, Brazil.
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14
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Duan S, Wang H, Gao Y, Wang X, Lyu L, Wang Y. Oral intake of titanium dioxide nanoparticles affect the course and prognosis of ulcerative colitis in mice: involvement of the ROS-TXNIP-NLRP3 inflammasome pathway. Part Fibre Toxicol 2023; 20:24. [PMID: 37349846 PMCID: PMC10288682 DOI: 10.1186/s12989-023-00535-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 06/13/2023] [Indexed: 06/24/2023] Open
Abstract
BACKGROUND Titanium dioxide (TiO2), no matter in nanoscale or micron sizes, has been widely used in food industry as additives for decades. Given the potential impact of TiO2 on the gastrointestinal epithelial and parenchymal cells, including goblet cells, the public consumers may suffer the risk of diseases caused by its widespread dissemination in food products. We therefore set out to investigate the impact of TiO2 NPs on the course and prognosis of ulcerative colitis by oral gavaging TiO2 NPs at the doses levels of 0, 30, 100, and 300 mg/kg during the induction (7 days, from day 1 to day 7) and recovery (10 days, from day 8 to day 17) phases of colitis in mice. RESULTS The ulcerative colitis (UC) disease model was established by administrating of 2.5% dextran sulfate sodium (DSS) solution. Our results show that TiO2 NPs significantly enhanced the severity of DSS-induced colitis, decreased the body weight, increased the disease activity index (DAI) and colonic mucosa damage index (CMDI) scores, shortened the colonic length, increased the inflammatory infiltration in the colon. The most significant changes occurred in the low dose (30 mg/kg) group of TiO2 NPs exposure during the development phase of UC and the high dose (300 mg/kg) group of TiO2 NPs during UC self-healing phase. Increased reactive oxygen species (ROS) level and upregulation of anti-oxidant enzymes including total superoxide dismutase (T-SOD), glutathione peroxidase (GSH-PX) and catalase (CAT), demonstrate that the TiO2 NP exposure has triggered oxidative stress in mice. Moreover, the upregulation of caspase-1 mRNA and increased expression of thioredoxin interacting protein (TXNIP) further demonstrate the involvement of the ROS-TXNIP-NLR family pyrin domain containing 3 (NLRP3) inflammasome pathway in aggravating the development of UC. CONCLUSION Oral intake of TiO2 NPs could affect the course of acute colitis in exacerbating the development of UC, prolonging the UC course and inhibiting UC recovery.
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Affiliation(s)
- Shumin Duan
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, P.R. China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing, 100191, P.R. China
| | - Hongbo Wang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, P.R. China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing, 100191, P.R. China
| | - Yanjun Gao
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, P.R. China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing, 100191, P.R. China
| | - Xiang Wang
- California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Lizhi Lyu
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, P.R. China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing, 100191, P.R. China
| | - Yun Wang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, P.R. China.
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing, 100191, P.R. China.
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15
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Chougule PR, Sangaraju R, Patil PB, Qadri SSYH, Panpatil VV, Ghosh S, Mungamuri SK, Bhanoori M, Sinha SN. Effect of ethyl gallate and propyl gallate on dextran sulfate sodium (DSS)-induced ulcerative colitis in C57BL/6 J mice: preventive and protective. Inflammopharmacology 2023:10.1007/s10787-023-01254-5. [PMID: 37266812 DOI: 10.1007/s10787-023-01254-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/29/2023] [Indexed: 06/03/2023]
Abstract
OBJECTIVE AND DESIGN Inflammatory bowel disease (IBD) is an idiopathic inflammatory condition of the digestive system marked by oxidative stress, leukocyte infiltration, and elevation of inflammatory mediators. In this study, we demonstrate the protective effect of ethyl gallate (EG), a phytochemical, and propyl gallate (PG), an anti-oxidant, given through normal drinking water (DW) and copper water (CW) in various combinations, which had a positive effect on the amelioration of DSS-induced ulcerative colitis in C57BL/6 J mice. MATERIALS AND METHODS We successfully determined the levels of proinflammatory cytokines and anti-oxidant enzymes by ELISA, tracked oxidative/nitrosative stress (RO/NS) by in vivo imaging (IVIS) using L-012 chemiluminescent probe, disease activity index (DAI), and histopathological and morphometric analysis of colon in DSS-induced colitis in a model. RESULTS The results revealed that oral administration of ethyl gallate and propyl gallate at a dose of 50 mg/kg considerably reduced the severity of colitis and improved both macroscopic and microscopic clinical symptoms. The level of proinflammatory cytokines (TNF-α, IL-6, IL-1β, and IFN-γ) in colonic tissue was considerably reduced in the DSS + EG-treated and DSS + PG-treated groups, compared to the DSS alone-treated group. IVIS imaging of animals from the DSS + EG and DSS + PG-treated groups showed a highly significant decrease in RO/NS species relative to the DSS control group, with the exception of the DSS + PG/CW and DSS + EG + PG/CW-treated groups. We also observed lower levels of myeloperoxidase (MPO), nitric oxide (NO), and lipid peroxidation (LPO), and restored levels of GST and superoxide dismutase (SOD) in DSS + EG-DW/CW, DSS + PG/DW, and DSS + EG + PG/DW groups compared to DSS alone-treated group. In addition, we showed that the EG, PG, and EG + PG treatment significantly reduced the DAI score, and counteracted the body weight loss and colon shortening in mice compared to DSS alone-treated group. In this 21-day study, mice were treated daily with test substances and were challenged to DSS from day-8 to 14. CONCLUSION Our study highlights the protective effect of ethyl gallate and propyl gallate in various combinations which, in pre-clinical animals, serve as an anti-inflammatory drug against the severe form of colitis, indicating its potential for the treatment of IBD in humans. In addition, propyl gallate was investigated for the first time in this study for its anti-colitogenic effect with normal drinking water and reduced effect with copper water.
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Affiliation(s)
- Priyanka Raju Chougule
- Division of Food Safety, Indian Council of Medical Research - National Institute of Nutrition, Jamai-Osmania PO, Hyderabad, 500007, India
- Department of Biochemistry, Osmania University, Hyderabad, Telangana, 500027, India
| | - Rajendra Sangaraju
- Division of Food Safety, Indian Council of Medical Research - National Institute of Nutrition, Jamai-Osmania PO, Hyderabad, 500007, India
| | - Pradeep B Patil
- Animal Facility, ICMR - National Institute of Nutrition, Jamai-Osmania PO, Hyderabad, 500007, India
| | - S S Y H Qadri
- Animal Facility, ICMR - National Institute of Nutrition, Jamai-Osmania PO, Hyderabad, 500007, India
| | - Virendra V Panpatil
- Molecular Biology Division, National Institute of Nutrition-ICMR, Jamai-Osmania, Hyderabad, 500007, India
| | - Sudip Ghosh
- Molecular Biology Division, National Institute of Nutrition-ICMR, Jamai-Osmania, Hyderabad, 500007, India
| | - Sathish Kumar Mungamuri
- Division of Food Safety, Indian Council of Medical Research - National Institute of Nutrition, Jamai-Osmania PO, Hyderabad, 500007, India
| | - Manjula Bhanoori
- Department of Biochemistry, Osmania University, Hyderabad, Telangana, 500027, India
| | - Sukesh Narayan Sinha
- Division of Food Safety, Indian Council of Medical Research - National Institute of Nutrition, Jamai-Osmania PO, Hyderabad, 500007, India.
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16
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Zhang Y, Mu T, Deng X, Guo R, Xia B, Jiang L, Wu Z, Liu M. New Insights of Biological Functions of Natural Polyphenols in Inflammatory Intestinal Diseases. Int J Mol Sci 2023; 24:ijms24119581. [PMID: 37298531 DOI: 10.3390/ijms24119581] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/17/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023] Open
Abstract
The intestine is critically crucial for nutrient absorption and host defense against exogenous stimuli. Inflammation-related intestinal diseases, including enteritis, inflammatory bowel disease (IBD), and colorectal cancer (CRC), are heavy burdens for human beings due to their high incidence and devastating clinical symptoms. Current studies have confirmed that inflammatory responses, along with oxidative stress and dysbiosis as critical pathogenesis, are involved in most intestinal diseases. Polyphenols are secondary metabolites derived from plants, which possess convincible anti-oxidative and anti-inflammatory properties, as well as regulation of intestinal microbiome, indicating the potential applications in enterocolitis and CRC. Actually, accumulating studies based on the biological functions of polyphenols have been performed to investigate the functional roles and underlying mechanisms over the last few decades. Based on the mounting evidence of literature, the objective of this review is to outline the current research progress regarding the category, biological functions, and metabolism of polyphenols within the intestine, as well as applications for the prevention and treatment of intestinal diseases, which might provide ever-expanding new insights for the utilization of natural polyphenols.
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Affiliation(s)
- Yunchang Zhang
- College of Animal Science and Technology, Beijing University of Agriculture, Beijing 102206, China
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing 100193, China
| | - Tianqi Mu
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing 100193, China
| | - Xiong Deng
- College of Animal Science and Technology, Beijing University of Agriculture, Beijing 102206, China
| | - Ruiting Guo
- College of Animal Science and Technology, Beijing University of Agriculture, Beijing 102206, China
| | - Bing Xia
- College of Animal Science and Technology, Beijing University of Agriculture, Beijing 102206, China
| | - Linshu Jiang
- College of Animal Science and Technology, Beijing University of Agriculture, Beijing 102206, China
| | - Zhenlong Wu
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing 100193, China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Ming Liu
- College of Animal Science and Technology, Beijing University of Agriculture, Beijing 102206, China
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17
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Zhou Y, Ji G, Yang X, Chen Z, Zhou L. Behavioral abnormalities in C57BL/6 mice with chronic ulcerative colitis induced by DSS. BMC Gastroenterol 2023; 23:84. [PMID: 36959628 PMCID: PMC10037843 DOI: 10.1186/s12876-023-02718-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 03/13/2023] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND Clinical epidemiological studies have found that some patients with ulcerative colitis (UC) are prone to mental disorders. DSS-induced acute and chronic UC models are often used to evaluate the efficacy of anti-UC drugs. However, whether DSS has an effect on mouse behavior has not been reported. METHODS Acute and chronic UC models were induced by 3% DSS and 1.5% DSS, respectively. The bloody stool, the changes in the colon length, and histopathological changes in the colon were used to evaluate the success of the animal model. The behavior of mice was evaluated by open field experiment, tail suspension experiment and Sucrose preference test. RESULTS The weight of mice in 3% DSS group decreased significantly, the DAI score increased significantly, the colon length of mice was significantly shortened, and the structure of colonic crypts was abnormal, which showed inflammatory cell infiltration and shrinkage of crypts. Compared with the control group, the immobility time of 3%DSS group mice in the tail suspension test and forced swimming test had no effect, the number of running and grooming times was significantly reduced, and there was no significant difference in the number of standing times. No abnormality was observed in HE staining of the hippocampus. However, in 1.5% DSS-induced chronic UC model, behavioral and hippocampal abnormalities were observed not only UC symptoms. CONCLUSIONS The acute UC model induced by 3% DSS has certain influence on the behavior of mice, but the mental state of mice is normal, which may be the abnormal behavior caused by UC symptoms; However, the chronic UC model induced by 1.5% DSS has a significant effect on the behavior of mice, and the mice have mental disorders, which are caused by mental disorders.
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Affiliation(s)
- Yuxin Zhou
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China
| | - Gang Ji
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China
| | - Xiaoyi Yang
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China
| | - Zhenhua Chen
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China.
| | - Liangliang Zhou
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China.
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The Protective Role of Scorias spongiosa Polysaccharide-Based Microcapsules on Intestinal Barrier Integrity in DSS-Induced Colitis in Mice. Foods 2023; 12:foods12030669. [PMID: 36766197 PMCID: PMC9914818 DOI: 10.3390/foods12030669] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/29/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Scorias spongiosa, a type of edible fungus, is beneficial for intestinal health. However, the mechanisms by which polysaccharides derived from S. spongiosa contribute to the integrity of the intestinal barrier have been little investigated. In the present study, 40 C57BL/6J mice were assigned into five groups: (1) Normal; (2) Dextran sulfate sodium (DSS)Administration; (3) DSS + Uncapped polysaccharides; (4) DSS + Low microcapsules; (5) DSS + High microcapsules. After one week of administration of S. spongiosa polysaccharides, all mice, excluding the Normal group, had free access to the drinking water of 3.5% DSS for seven days. Serum and feces were then taken for analysis. Scanning electron microscopy analysis indicated the structure of the micro-capped polysaccharides with curcumin was completed with a rough surface, which differs from the uncapped polysaccharides. Noticeably, S. spongiosa polysaccharides enhanced intestinal barrier integrity as evidenced by increasing the protein levels of Claudin-1, ZO-1 and ZO-2. Low-capped polysaccharides mitigated the DSS-induced oxidative stress by increasing catalase (CAT) concentration and decreasing malondialdehyde (MDA) and myeloperoxidase (MPO) concentrations. Besides, DSS treatment caused a disturbance of inflammation and the contents of IL-1β, IL-6, TNF-α and CRP were downregulated and the contents of IL-4, IL-10 and IFN-γ were upregulated by S. spongiosa polysaccharides. Research on the potential mechanisms indicated that S. spongiosa polysaccharides inhibited the DSS-triggered activation of NF-κB signaling. Moreover, the JAK/STAT1 and MAPK pathways were suppressed by S. spongiosa polysaccharides in DSS-challenged mice, with Lcap showing the strongest efficacy. 16S rDNA amplicon sequencing revealed that the richness and diversity of the microbial community were reshaped by S. spongiosa polysaccharide ingestion. Therefore, our study substantiated that S. spongiosa polysaccharides exhibited protective effects against colitis mice by reshaping the intestinal microbiome and maintaining the balance of intestinal barrier integrity, antioxidant capacity and colonic inflammation through regulation of the NF-κB-STAT1-MAPK axis.
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Wen Y, Kong Y, Peng Y, Cui X. Uptake, distribution, and depuration of emerging per- and polyfluoroalkyl substances in mice: Role of gut microbiota. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 853:158372. [PMID: 36041619 DOI: 10.1016/j.scitotenv.2022.158372] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/21/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
The bioaccumulation and fate in mammals of hexafluoropropylene oxide trimer acid (HFPO-TA) and hexafluoropropylene oxide dimer acid (HFPO-DA), as major alternatives for perfluorooctanoate (PFOA), have rarely been reported. In addition, the role of gut microbiota was greatly understudied. In this study, the uptake, distribution, and depuration of HFPO-TA, HFPO-DA, and PFOA were investigated by exposure to mice for 14 days, followed by a clearance period of 7 days. The patterns of tissue distribution and depuration kinetics of HFPO-TA and PFOA were similar, but different from HFPO-DA. Liver was the main deposition organ for HFPO-TA and PFOA, making contributions of 58.8 % and 59.1 % to the total mass recovered on day 14. Depuration of HFPO-DA was more rapid than HFPO-TA and PFOA. Approximately 95.3 % of HFPO-DA in liver was eliminated on day 21 compared with day 14. While the clearance rates of HPFO-TA and PFOA were only 6.1 % and 13.9 % on day 21. The comparison between normal and pseudo germ-free mice (GM) was also conducted to investigate the effect of gut microbial on in vivo absorption of the three per- and polyfluoroalkyl substances (PFASs). Significantly higher (p < 0.05) concentrations of all the three PFASs were observed in most organs and tissues of GM compared with NC group. An analysis of gut microbiota showed that the higher absorption of PFASs in GM group may be attributed to the increase of intestinal permeability (as indicated by the decrease of tight junction protein expression), which were induced by the change of lachnospiraceae abundance. The result highlighted the importance of gut microbiota in absorption and health risk evaluation of emerging PFASs.
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Affiliation(s)
- Yong Wen
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Yi Kong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Ying Peng
- Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China
| | - Xinyi Cui
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.
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Zhang B, Zhang Y, Liu X, Yin J, Li X, Zhang X, Xing X, Wang J, Wang S. Differential Protective Effect of Resveratrol and Its Microbial Metabolites on Intestinal Barrier Dysfunction is Mediated by the AMPK Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:11301-11313. [PMID: 36066018 DOI: 10.1021/acs.jafc.2c04101] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The effectiveness of resveratrol (RES) on intestinal barrier dysfunction and colitis has been extensively studied. However, the specific effects of its microbial metabolites on gut barrier function remain unclear. Hence, we compared the protective effects of RES and its microbial metabolites dihydroresveratrol (DHR) and 3-(4-hydroxyphenyl)-propionic acid (4HPP) against intestinal barrier injury and colitis. Only 4HPP and RES significantly reduced paracellular permeability and the secretion of proinflammatory cytokines in lipopolysaccharides (LPS)-treated intestinal Caco-2 cells, which was consistent with the upregulation in tight junction (TJ) proteins. Furthermore, RES and 4HPP ameliorated intestinal barrier dysfunction and colonic inflammation in colitis mice, while DHR did not. In particular, the expressions of intestinal TJ proteins and Muc2 were restored by RES and 4HPP. The molecular mechanism involved the adenosine monophosphate-activated protein kinase (AMPK)-mediated activation of CDX2 and the regulation of the SIRT1/NF-κB pathway. These findings provide new insights into understanding the protective effects of RES against intestinal barrier damage and colitis.
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Affiliation(s)
- Bowei Zhang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Yunhui Zhang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Xiaoxia Liu
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Jia Yin
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Xiang Li
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Xuejiao Zhang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Xiaolong Xing
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Jin Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Shuo Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
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Mohanbhai SJ, Sardoiwala MN, Gupta S, Shrimali N, Choudhury SR, Sharma SS, Guchhait P, Karmakar S. Colon targeted chitosan-melatonin nanotherapy for preclinical Inflammatory Bowel Disease. BIOMATERIALS ADVANCES 2022; 136:212796. [PMID: 35929295 DOI: 10.1016/j.bioadv.2022.212796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/22/2022] [Accepted: 04/06/2022] [Indexed: 06/15/2023]
Abstract
Inflammatory Bowel (IBD) is an umbrella term which includes Crohn's Disease (CD) and Ulcerative Colitis (UC). At present, therapies available for management of the UC includes, corticosteroid, immuno-suppressants and antibiotics are used for mild to moderate UC conditions which can cause nephrotoxicity, hepatotoxicity and cardiotoxicity. Hence, a novel therapeutic candidate having potent anti-inflammatory effect is urgently warranted for the management of UC. Melatonin has emerged as a potent anti-inflammatory agent. However, poor solubility limits its therapeutic potential. Therefore, colon targeted Eudragit-S-100 coated chitosan nanoparticles have been demonstrated to improve melatonin therapeutic efficacy. It was found that melatonin loaded chitosan and colon targeted chitosan nanoparticles had promising anti-inflammatory efficacy in terms of NO scavenging activity in an in-vitro LPS challenged macrophages. Also, colon targeted oral chitosan nano-formulation exhibited remarkable protection in an in vivo UC mice model by improving gross pathological parameters, histo-architectural protection, goblet cell depletion, and immune cells infiltration which can be extrapolated to clinical studies.
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Affiliation(s)
- Soni Jignesh Mohanbhai
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Sector-81, Knowledge City, SAS Nagar, Punjab 140306, India
| | - Mohammed Nadim Sardoiwala
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Sector-81, Knowledge City, SAS Nagar, Punjab 140306, India
| | - Shiwangi Gupta
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Sector-81, Knowledge City, SAS Nagar, Punjab 140306, India
| | - Nishith Shrimali
- Disease Biology Laboratory, Regional Centre for Biotechnology (RCB), National Capital Region Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Subhasree Roy Choudhury
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Sector-81, Knowledge City, SAS Nagar, Punjab 140306, India
| | - Shyam Sunder Sharma
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), SAS Nagar, Punjab 160062, India
| | - Prasenjit Guchhait
- Disease Biology Laboratory, Regional Centre for Biotechnology (RCB), National Capital Region Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Surajit Karmakar
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Sector-81, Knowledge City, SAS Nagar, Punjab 140306, India.
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22
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Hu C, Patil Y, Gong D, Yu T, Li J, Wu L, Liu X, Yu Z, Ma X, Yong Y, Chen J, Gooneratne R, Ju X. Heat Stress-Induced Dysbiosis of Porcine Colon Microbiota Plays a Role in Intestinal Damage: A Fecal Microbiota Profile. Front Vet Sci 2022; 9:686902. [PMID: 35300220 PMCID: PMC8921775 DOI: 10.3389/fvets.2022.686902] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 01/24/2022] [Indexed: 12/30/2022] Open
Abstract
The pathological mechanisms of gastrointestinal disorders, including inflammatory bowel disease (IBD), in pigs are poorly understood. We report the induction of intestinal inflammation in heat-stressed (HS) pigs, fecal microbiota transplantation from pigs to mice, and explain the role of microorganisms in IBD. 24 adult pigs were subjected to HS (34 ± 1 °C; 75–85% relative humidity for 24h) while 24 control pigs (CP) were kept at 25 ± 3°C and the same humidity. Pigs were sacrificed on days 1, 7, 14, 21. Colonic content microbiome analyses were conducted. Pseudo-germ-free mice were fed by gavage with fecal microbiota from HS-pigs and CP to induce pig-like responses in mice. From 7 d, HS-pigs exhibited fever and diarrhea, and significantly lower colonic mucosal thickness, crypt depth/width, and goblet cell number. Compared with each control group, the concentration of cortisol in the peripheral blood of HS pigs gradually increased, significantly so on days 7, 14, and 21 (P < 0.01). While the concentration of LPS in HS pigs' peripheral blood was significantly higher on days 7, 14 (P < 0.01), and 21 (P < 0.05) compared with that of the control group. The colonic microbiome composition of HS-pigs was different to that of CP. By day 14, opportunistic pathogens (e.g., Campylobacterales) had increased in HS-pigs. The composition of the colonic microbiome in mice administered feces from HS-pigs was different from those receiving CP feces. Bacteroides were significantly diminished, Akkermansia were significantly increased, and intestinal damage and goblet cell numbers were higher in mice that received HS-pig feces. Moreover, we verified the relevance of differences in the microbiota of the colon among treatments. Heat stress promotes changes in gut microbiome composition, which can affect the colonic microbial structure of mice through fecal microbiota transplantation; the molecular mechanisms require further investigation. This study enhanced our understanding of stress-induced inflammation in the colon and the increase in diarrhea in mammals subjected to prolonged HS. Our results provide useful information for preventing or ameliorating deficits in pig production caused by prolonged exposure to high temperatures.
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Affiliation(s)
- Canying Hu
- Department of Animal Science, Agricultural College, Guangdong Ocean University, Zhanjiang, China
- Shenzhen Institute of Guangdong Ocean University, Shenzhen, China
| | - Yadnyavalkya Patil
- Department of Wine, Food and Molecular Biosciences, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln, New Zealand
| | - Dongliang Gong
- Department of Animal Science, Agricultural College, Guangdong Ocean University, Zhanjiang, China
| | - Tianyue Yu
- Department of Animal Science, Agricultural College, Guangdong Ocean University, Zhanjiang, China
| | - Junyu Li
- Department of Veterinary Medicine, College of Agriculture, Guangdong Ocean University, Zhanjiang, China
| | - Lianyun Wu
- Department of Animal Science, Agricultural College, Guangdong Ocean University, Zhanjiang, China
| | - Xiaoxi Liu
- Department of Animal Science, Agricultural College, Guangdong Ocean University, Zhanjiang, China
| | - Zhichao Yu
- Department of Animal Science, Agricultural College, Guangdong Ocean University, Zhanjiang, China
| | - Xinbing Ma
- Department of Animal Science, Agricultural College, Guangdong Ocean University, Zhanjiang, China
| | - Yanhong Yong
- Department of Veterinary Medicine, College of Agriculture, Guangdong Ocean University, Zhanjiang, China
| | - Jinjun Chen
- Department of Animal Science, Agricultural College, Guangdong Ocean University, Zhanjiang, China
| | - Ravi Gooneratne
- Department of Wine, Food and Molecular Biosciences, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln, New Zealand
| | - Xianghong Ju
- Department of Animal Science, Agricultural College, Guangdong Ocean University, Zhanjiang, China
- Shenzhen Institute of Guangdong Ocean University, Shenzhen, China
- Department of Veterinary Medicine, College of Agriculture, Guangdong Ocean University, Zhanjiang, China
- *Correspondence: Xianghong Ju
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23
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Alterations in gut microbiota and physiological factors associated with abdominal aortic aneurysm. MEDICINE IN NOVEL TECHNOLOGY AND DEVICES 2022. [DOI: 10.1016/j.medntd.2022.100122] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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Yuan Y, Wu H, Shuai B, Liu C, Zhu F, Gao F, Wei C, Fan H. Mechanism of HSP90 Inhibitor in the Treatment of DSS-induced Colitis in Mice by Inhibiting MAPK Pathway and Synergistic Effect of Compound Sophorae Decoction. Curr Pharm Des 2022; 28:3456-3468. [PMID: 36415092 DOI: 10.2174/1381612829666221122113929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 10/17/2022] [Accepted: 10/27/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND The mechanism of Heat Shock Protein 90 (HSP90) in Ulcerative Colitis (UC) has been studied, and mitogenic-activated protein kinases (MAPK) also contribute to the pathogenesis of UC. However, the effect of the HSP90/MAPK pathway in UC is still unclear. Therefore, the mainstay of this research is to explore the mechanism of action of this pathway in UC. Compound sophorae decoction (CSD), as a Chinese herbal decoction, can synergistically affect the above process. OBJECTIVE This study aimed to uncover the synergistic effects of HSP90 inhibitors regulating the MAPK pathway for treating DSS-induced colitis in mice and the synergistic effects of CSD. METHODS This experiment used oral administration of standard diets containing 3% dextran sodium sulfate (DSS) to establish an experimental colitis model in mice. The model was treated with HSP90 inhibitor, CSD, or dexamethasone. Mouse feces, mobility, body weight, colon length, and colon histopathology scores were recorded daily to assess the degree of colitis inflammation. Expression levels of HSP90 and MAPK pathway-related genes and proteins were evaluated by Western blot and qPCR. The evaluation of intestinal mucosal permeability was measured by enzyme-linked immunosorbent assay (ELISA), which could detect the protein level of D-Amino Acid Oxidase (DAO) and D-lactic acid (D-LA). The same went for downstream molecules AFT-2, p53, and apoptosis-related proteins BAX, BCL-2, Caspase3, and survivin in the MAPK pathway. Immunohistochemical measured p-38, p-JNK, and p-ERK expressions. JAM-A and claudin-1 connexin were tested by immunofluorescence staining. The TUNEL method was for measuring the apoptosis rate of colonic epithelial cells. CBA kit determined the level of inflammatory factors of colons. RESULTS HSP90 inhibitor can improve the degree of pathological damage in the colon of mice treated with DSS, increase the mice's weight and the length of the colon, and significantly reduce the disease activity index (DAI) score. Intraperitoneal injection of HSP90 inhibitor can reduce the expression of MAPK pathway markers P38, JNK, ERK, and their phosphorylation and decrease the content of AFT-2 and p53, which is downstream of the MAPK pathway. In addition, treatment of the HSP90 inhibitor up-regulated the expression of anti-apoptotic proteins BCL-2 and survivin, as well as down-regulated apoptotic protein caspase3, BAX in the colon of mice with colitis. Lower levels of inflammatory factors such as IL-6, MCP-1, IFN-γ, TNF, IL-12p70, and increased IL-10 were observed after HSP90 inhibitor therapy. Furthermore, the combination treatment of CSD can enhance the effect of the single HSP90 inhibitor treatment and play a synergistic effect. CONCLUSION These data suggest that an HSP90 inhibitor is available to treat UC by inhibiting the MAPK signaling pathway. This axis can restore the intestinal mucosa barrier's function by reducing intestinal mucosa's permeability and inhibiting apoptosis of intestinal epithelial cells. The specific mechanism is that HSP90 inhibitor can reduce the pathological damage and inflammation levels of colitis mice, and reduce the apoptosis rate of colonic epithelial cells and the mucosal permeability, thereby restoring the mucosal barrier function. During this process, CSD works synergistically to improve the therapeutic effect of the HSP90 inhibitor.
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Affiliation(s)
- Yuyi Yuan
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hui Wu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Bo Shuai
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chang Liu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Feng Zhu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Fei Gao
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chunzhu Wei
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Heng Fan
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
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Hu Y, Ye Z, Wu M, She Y, Li L, Xu Y, Qin K, Hu Z, Yang M, Lu F, Ye Q. The Communication Between Intestinal Microbiota and Ulcerative Colitis: An Exploration of Pathogenesis, Animal Models, and Potential Therapeutic Strategies. Front Med (Lausanne) 2021; 8:766126. [PMID: 34966755 PMCID: PMC8710685 DOI: 10.3389/fmed.2021.766126] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 11/18/2021] [Indexed: 12/12/2022] Open
Abstract
Ulcerative Colitis (UC) is a chronic inflammatory bowel disease. The prolonged course of UC and the lack of effective treatment management make it difficult to cure, affecting the health and life safety of patients. Although UC has received more attention, the etiology and pathogenesis of UC are still unclear. Therefore, it is urgent to establish an updated and comprehensive understanding of UC and explore effective treatment strategies. Notably, sufficient evidence shows that the intestinal microbiota plays an important role in the pathogenesis of UC, and the treating method aimed at improving the balance of the intestinal microbiota exhibits a therapeutic potential for UC. This article reviews the relationship between the genetic, immunological and microbial risk factors with UC. At the same time, the UC animal models related to intestinal microbiota dysbiosis induced by chemical drugs were evaluated. Finally, the potential value of the therapeutic strategies for restoring intestinal microbial homeostasis and treating UC were also investigated. Comprehensively, this study may help to carry out preclinical research, treatment theory and methods, and health management strategy of UC, and provide some theoretical basis for TCM in the treatment of UC.
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Affiliation(s)
- Yu Hu
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhen Ye
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mingquan Wu
- Department of Pharmacy, Sichuan Provincial Orthopedic Hospital, Chengdu, China
| | - Yingqi She
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Linzhen Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yujie Xu
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Kaihua Qin
- Health Preservation and Rehabilitation College, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhipeng Hu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Maoyi Yang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fating Lu
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qiaobo Ye
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Cingeľová Maruščáková I, Schusterová P, Popelka P, Gancarčíková S, Csank T, Fečkaninová A, Ratvaj M, Mudroňová D. Effect of autochthonous lactobacilli on immunologically important molecules of rainbow trout after bacterial infection studied on intestinal primoculture. FISH & SHELLFISH IMMUNOLOGY 2021; 119:379-383. [PMID: 34687878 DOI: 10.1016/j.fsi.2021.10.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 10/14/2021] [Accepted: 10/18/2021] [Indexed: 06/13/2023]
Abstract
Nowadays, the aquaculture industry is one of the fastest growing industries. Intensive aquaculture has a negative impact on fish health. Probiotic bacteria are often used due to beneficial effect to health of host, e.i. decrease of diseases outbreaks, immunomodulatory effect or better utilization of feed. The aim of this work was to study the influence of probiotic bacteria on the immune response of trout intestinal cells in primoculture infected with pathogenic bacteria. In the experiment, we tested the effect of pre-treatment of intestinal cells with an autochthonous strain of Lactobacillus plantarum R2 Biocenol™ (CCM 8674) following infection with the most serious salmonid pathogens - Aeromonas salmonicida subsp. salmonicida (CCM 1307) and Yersinia ruckeri (CCM 6093). Tested probiotic strain reduced inflammation after A. salmonicida infection through decreased expression of pro-inflammatory cytokines and increased expression of anti-inflammatory cytokines. In contrast, after infection with Y. ruckeri, which causes immunosuppression, the probiotic strain stimulated immunity by up-regulation of expression of proinflammatory cytokines and suppressed the expression of anti-inflammatory cytokines. These results are a prerequisite for the immunomodulatory potential of the strain, but its action must be confirmed in subsequent in vivo experiments.
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Affiliation(s)
- Ivana Cingeľová Maruščáková
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Košice, Slovak Republic
| | - Petra Schusterová
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Košice, Slovak Republic
| | - Peter Popelka
- Department of Food Hygiene and Technology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Košice, Slovak Republic
| | - Soňa Gancarčíková
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Košice, Slovak Republic
| | - Tomáš Csank
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Košice, Slovak Republic
| | - Adriána Fečkaninová
- Department of Pharmaceutical Technology, Pharmacognozy and Botany, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Košice, Slovak Republic
| | - Marek Ratvaj
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Košice, Slovak Republic
| | - Dagmar Mudroňová
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Košice, Slovak Republic.
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Ke H, Li F, Deng W, Li Z, Wang S, Lv P, Chen Y. Metformin Exerts Anti-inflammatory and Mucus Barrier Protective Effects by Enriching Akkermansia muciniphila in Mice With Ulcerative Colitis. Front Pharmacol 2021; 12:726707. [PMID: 34658866 PMCID: PMC8514724 DOI: 10.3389/fphar.2021.726707] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 09/13/2021] [Indexed: 12/22/2022] Open
Abstract
The present study aimed to determine if metformin exerts anti-inflammatory and mucus-protective effects via the gut microbiota. Metformin has extensive benefits including anti-inflammatory effects. Previous studies showed that metformin changed the gut microbiota composition and increases the number of goblet cells. Intestinal dysbiosis and goblet cell depletion are important features of ulcerative colitis (UC). The underlying mechanism and whether metformin can improve the mucus barrier in UC remain unclear. Metformin (400 mg/kg/day) was administered to mice with dextran sulfate sodium (DSS)-induced UC for 2 wk to investigate the effects of metformin on the intestinal mucus barrier. The gut microbiota was depleted, using antibiotics, to explore its role in the mucus-protecting effects of metformin. Akkermansia muciniphila (A. muciniphila), which was enriched in metformin-treated mice, was administered to mice to investigate the effects of the bacteria on UC and the mucus barrier. Metformin attenuated DSS-induced UC in mice, as evidenced by the alleviation of diarrhea, hematochezia, and the decrease in body weight. The expression of mucin2, a prominent mucus barrier protein, was increased in the metformin-treated group compared to the DSS-treated group. Furthermore, fecal 16S rRNA analysis showed that metformin treatment changed the gut microbiota composition by increasing the relative abundance of Lactobacillus and Akkermansia species while decreasing Erysipelatoclostridium at the genus level. Antibiotic treatment partly abolished the anti-inflammatory and mucus-protecting effects of metformin. Administration of A. muciniphila alleviated the colonic inflammation and mucus barrier disruption. Metformin alleviated DSS-induced UC in mice and protected against cell damage via affecting the gut microbiota, thereby providing a new mechanism for the therapeutic effect of metformin in patients with UC. This study also provides evidence that A. muciniphila as a probiotic has potential benefits for UC.
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Affiliation(s)
- Haoran Ke
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Fang Li
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Hainan General Hospital, Haikou, China
| | - Wenlin Deng
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Pediatrics, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zitong Li
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Siqi Wang
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Pinjing Lv
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ye Chen
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Zhang YW, Li YJ, Lu PP, Dai GC, Chen XX, Rui YF. The modulatory effect and implication of gut microbiota on osteoporosis: from the perspective of "brain-gut-bone" axis. Food Funct 2021; 12:5703-5718. [PMID: 34048514 DOI: 10.1039/d0fo03468a] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Osteoporosis (OP) is a kind of systemic metabolic disease characterized by decreased bone mass and destruction of the bone microstructure. In recent years, it has become an expected research trend to explore the cross-linking relationship in the pathogenesis process of OP so as to develop reasonable and effective intervention strategies. With the further development of intestinal microbiology and the profound exploration of the gut microbiota (GM), it has been further revealed that the "brain-gut" axis may be a potential target for the bone, thereby affecting the occurrence and progression of OP. Hence, based on the concept of "brain-gut-bone" axis, we look forward to deeply discussing and summarizing the cross-linking relationship of OP in the next three parts, including the "brain-bone" connection, "gut-bone" connection, and "brain-gut" connection, so as to provide an emerging thought for the prevention strategies and mechanism researches of OP.
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Affiliation(s)
- Yuan-Wei Zhang
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China. and Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China and School of Medicine, Southeast University, Nanjing, Jiangsu, China and Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, China and Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Ying-Juan Li
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China and Department of Geriatrics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Pan-Pan Lu
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China. and Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China and School of Medicine, Southeast University, Nanjing, Jiangsu, China and Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, China and Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Guang-Chun Dai
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China. and Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China and School of Medicine, Southeast University, Nanjing, Jiangsu, China and Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, China and Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Xiang-Xu Chen
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China. and Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China and School of Medicine, Southeast University, Nanjing, Jiangsu, China and Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, China and Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Yun-Feng Rui
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China. and Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China and School of Medicine, Southeast University, Nanjing, Jiangsu, China and Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, China and Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
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