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Wang N, Li Z, Cao L, Cui Z. Trilobatin ameliorates dextran sulfate sodium-induced ulcerative colitis in mice via the NF-κB pathway and alterations in gut microbiota. PLoS One 2024; 19:e0305926. [PMID: 38913606 PMCID: PMC11195961 DOI: 10.1371/journal.pone.0305926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 06/06/2024] [Indexed: 06/26/2024] Open
Abstract
OBJECTIVE This study aimed to evaluate the effects of trilobatin (TLB) on dextran sulfate sodium (DSS)-induced ulcerative colitis (UC) in mice and further explore the underlying mechanisms from the perspectives of signaling pathway and gut microbiota. METHODS A mouse model of UC was established using DSS. Trilobatin was administered via oral gavage. Disease severity was assessed based on body weight, disease activity index (DAI), colon length, histological detection, inflammation markers, and colonic mucosal barrier damage. Alternations in the NF-κB and PI3K/Akt pathways were detected by marker proteins. High-throughput 16S rRNA sequencing was performed to investigate the gut microbiota of mice. RESULTS In the DSS-induced UC mice, TLB (30 μg/g) treatment significantly increased the body weight, reduced the DAI score, alleviated colon length shortening, improved histopathological changes in colon tissue, inhibited the secretion and expression of inflammation factors (TNF-α, IL-1β, and IL-6), and increased the expression of tight-junction proteins (ZO-1 and occludin). Furthermore, TLB (30 μg/g) treatment significantly suppressed the activation of NF-κB pathway and altered the composition and diversity of the gut microbiota, as observed in the variations of the relative abundances of Proteobacteria, Actinobacteriota, and Bacteroidota, in UC mice. CONCLUSION TLB effectively alleviates DSS-induced UC in mice. Regulation of the NF-κB pathway and gut microbiota contributes to TLB-mediated therapeutic effects. Our study not only identified a novel drug candidate for the treatment of UC, but also enhanced our understanding of the biological functions of TLB.
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Affiliation(s)
- Nanbo Wang
- Department of Gastric and Colorectal Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, China
| | - Zhaohui Li
- Changchun People’s Hospital of Jilin Province, Changchun, China
| | - Lingling Cao
- School of Clinical Medical, Changchun University of Chinese Medicine, Changchun, China
| | - Zhihua Cui
- The First Hospital of Jilin University, Changchun, China
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Nicolas S, Dohm-Hansen S, Lavelle A, Bastiaanssen TFS, English JA, Cryan JF, Nolan YM. Exercise mitigates a gut microbiota-mediated reduction in adult hippocampal neurogenesis and associated behaviours in rats. Transl Psychiatry 2024; 14:195. [PMID: 38658547 PMCID: PMC11043361 DOI: 10.1038/s41398-024-02904-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 04/03/2024] [Accepted: 04/08/2024] [Indexed: 04/26/2024] Open
Abstract
Lifestyle factors, especially exercise, impact the manifestation and progression of psychiatric and neurodegenerative disorders such as depression and Alzheimer's disease, mediated by changes in hippocampal neuroplasticity. The beneficial effects of exercise may be due to its promotion of adult hippocampal neurogenesis (AHN). Gut microbiota has also been showed to be altered in a variety of brain disorders, and disturbances of the microbiota have resulted in alterations in brain and behaviour. However, whether exercise can counteract the negative effects of altered gut microbiota on brain function remains under explored. To this end, chronic disruption of the gut microbiota was achieved using an antibiotic cocktail in rats that were sedentary or allowed voluntary access to running wheels. Sedentary rats with disrupted microbiota displayed impaired performance in hippocampal neurogenesis-dependent tasks: the modified spontaneous location recognition task and the novelty suppressed feeding test. Performance in the elevated plus maze was also impaired due to antibiotics treatment. These behaviours, and an antibiotics-induced reduction in AHN were attenuated by voluntary exercise. The effects were independent of changes in the hippocampal metabolome but were paralleled by caecal metabolomic changes. Taken together these data highlight the importance of the gut microbiota in AHN-dependent behaviours and demonstrate the power of lifestyle factors such as voluntary exercise to attenuate these changes.
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Affiliation(s)
- Sarah Nicolas
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Sebastian Dohm-Hansen
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Aonghus Lavelle
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Thomaz F S Bastiaanssen
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Jane A English
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- INFANT Research Centre, Cork University Hospital, Wilton, Cork, Ireland
| | - John F Cryan
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Yvonne M Nolan
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
- APC Microbiome Ireland, University College Cork, Cork, Ireland.
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Zhou S, Wang M, Li W, Zhang Y, Zhao T, Song Q, Cong J. Comparative efficacy and tolerability of probiotic, prebiotic, and synbiotic formulations for adult patients with mild-moderate ulcerative colitis in an adjunctive therapy: A network meta-analysis. Clin Nutr 2024; 43:20-30. [PMID: 37995508 DOI: 10.1016/j.clnu.2023.11.010] [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: 09/06/2023] [Revised: 10/25/2023] [Accepted: 11/13/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND & AIMS Probiotics, prebiotics, and synbiotics (PPS) have been widely used as adjuvant treatments in patients with ulcerative colitis (UC) in recent years. However, the most effective formulations of PPS have yet to be identified. We thus aimed to compare the efficacy and tolerability of different PPS formulations for mild-moderate UC. METHODS We searched PubMed, Embase, Web of Science, and Cochrane CENTRAL from inception to June 24, 2023 for double-blind randomized controlled trials. We used a frequentist approach in random-effects models for network meta-analysis and the Grading of Recommendations Assessment, Development, and Evaluation approach to evaluate the certainty of evidence. RESULTS We analysed data from 20 trials involving 1153 patients. The combinations of specific strains of Lactobacillus and Bifidobacterium (CLB) (odds ratio (OR), 3.85; 95 % confidence interval (CI), 1.40-10.60; low certainty) and combinations of specific strains of Lactobacillus, Bifidobacterium, and Streptococcus (CLBS) (OR, 2.20; 95 % CI, 1.47-3.28; low certainty) significantly increased the clinical remission rate in intention-to-treat analysis (ITT) when compared to placebo. Similarly, compared with placebo, the two combinations significantly reduced clinical activity scores (standardized mean difference (SMD), -1.17 (95 % CI, -1.68 to -0.65), low certainty; and SMD, -1.33 (95 % CI, -1.81 to -0.86), low certainty, respectively). Hierarchical cluster analyses showed the two combinations formed clusters with high efficacy (clinical remission in ITT and clinical activity score) and tolerability (withdrawal due to worsening symptoms) within 12 weeks. CONCLUSION In this systematic review, we found CLB and CLBS demonstrated a clinical benefit in adjuvant treatments, with a comparable tolerability and safety profile to placebo. Further trials are needed. TRIAL REGISTRATION NUMBER CRD42022344905.
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Affiliation(s)
- Siyu Zhou
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266000, China
| | - Mengjuan Wang
- Emergency Department, Qingdao Municipal Hospital, University of Health and Rehabilitation Sciences, Qingdao 266000, China
| | - Wenhui Li
- Department of Oncology, Affiliated Qingdao Central Hospital of Qingdao University, Qingdao Cancer Hospital, Qingdao 266000, China
| | - Yun Zhang
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266000, China
| | - Tianyu Zhao
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266000, China
| | - Qianqian Song
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266000, China
| | - Jing Cong
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266000, China.
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Sun SY, Yin X, Ma JY, Wang XL, Xu XM, Wu JN, Zhang CW, Lu Y, Liu T, Zhang L, Kang PP, Wu B, Zhou GK. Histamine H4 receptor and TRPV1 mediate itch induced by cadaverine, a metabolite of the microbiome. Mol Pain 2024; 20:17448069241272149. [PMID: 39079948 DOI: 10.1177/17448069241272149] [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] [Indexed: 08/06/2024] Open
Abstract
Cadaverine is an endogenous metabolite produced by the gut microbiome with various activity in physiological and pathological conditions. However, whether cadaverine regulates pain or itch remains unclear. In this study, we first found that cadaverine may bind to histamine 4 receptor (H4R) with higher docking energy score using molecular docking simulations, suggesting cadaverine may act as an endogenous ligand for H4R. We subsequently found intradermal injection of cadaverine into the nape or cheek of mice induces a dose-dependent scratching response in mice, which was suppressed by a selective H4R antagonist JNJ-7777120, transient receptor potential vanilloid 1 (TRPV1) antagonist capsazepine and PLC inhibitor U73122, but not H1R antagonist or TRPA1 antagonist or TRPV4 antagonist. Consistently, cadaverine-induced itch was abolished in Trpv1-/- but not Trpa1-/- mice. Pharmacological analysis indicated that mast cells and opioid receptors were also involved in cadaverine-induced itch in mice. scRNA-Seq data analysis showed that H4R and TRPV1 are mainly co-expressed on NP2, NP3 and PEP1 DRG neurons. Calcium imaging analysis showed that cadaverine perfusion enhanced calcium influx in the dissociated dorsal root ganglion (DRG) neurons, which was suppressed by JNJ-7777120 and capsazepine, as well as in the DRG neurons from Trpv1-/- mice. Patch-clamp recordings found that cadaverine perfusion significantly increased the excitability of small diameter DRG neurons, and JNJ-7777120 abolished this effect, indicating involvement of H4R. Together, these results provide evidences that cadaverine is a novel endogenous pruritogens, which activates H4R/TRPV1 signaling pathways in the primary sensory neurons.
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Affiliation(s)
- Shi-Yu Sun
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Xi Yin
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Jun-Yi Ma
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Xue-Long Wang
- Department of Thoracic Surgery, Capital Medical University Electric Power Teaching Hospital, Beijing, China
| | - Xue-Mei Xu
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Jing-Ni Wu
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Cheng-Wei Zhang
- Department of Thoracic Surgery, Capital Medical University Electric Power Teaching Hospital, Beijing, China
| | - Ying Lu
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, China
| | - Tong Liu
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Li Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Pei-Pei Kang
- Department of Anesthesiology, Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Bin Wu
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Guo-Kun Zhou
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
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Cronin P, McCarthy S, Hurley C, Ghosh TS, Cooney JC, Tobin AM, Murphy M, O’Connor EM, Shanahan F, O’Toole PW. Comparative diet-gut microbiome analysis in Crohn's disease and Hidradenitis suppurativa. Front Microbiol 2023; 14:1289374. [PMID: 38029085 PMCID: PMC10667482 DOI: 10.3389/fmicb.2023.1289374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction The chronic inflammatory skin disease Hidradenitis suppurativa (HS) is strongly associated with Crohn's Disease (CD). HS and CD share clinical similarities and similar inflammatory pathways are upregulated in both conditions. Increased prevalence of inflammatory disease in industrialised nations has been linked to the Western diet. However, gut microbiota composition and diet interaction have not been compared in HS and CD. Methods Here we compared the fecal microbiota (16S rRNA gene amplicon sequencing) and habitual diet of previously reported subjects with HS (n = 55), patients with CD (n = 102) and controls (n = 95). Results and discussion Patients with HS consumed a Western diet similar to patients with CD. Meanwhile, habitual diet in HS and CD was significantly different to controls. Previously, we detected differences in microbiota composition among patients with HS from that of controls. We now show that 40% of patients with HS had a microbiota configuration similar to that of CD, characterised by the enrichment of pathogenic genera (Enterococcus, Veillonella and Escherichia_Shigella) and the depletion of putatively beneficial genera (Faecalibacterium). The remaining 60% of patients with HS harboured a normal microbiota similar to that of controls. Antibiotics, which are commonly used to treat HS, were identified as a co-varying with differences in microbiota composition. We examined the levels of several inflammatory markers highlighting that growth-arrest specific 6 (Gas6), which has anti-inflammatory potential, were significantly lower in the 40% of patients with HS who had a CD microbiota configuration. Levels of the pro-inflammatory cytokine IL-12, which is a modulator of intestinal inflammation in CD, were negatively correlated with the abundance of health-associated genera in patients with HS. In conclusion, the fecal microbiota may help identify patients with HS who are at greater risk for development of CD.
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Affiliation(s)
- Peter Cronin
- Department of Biological Science, University of Limerick, Limerick, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Siobhan McCarthy
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Dermatology, South Infirmary Victoria University Hospital, Cork, Ireland
| | - Cian Hurley
- School of Microbiology, University College Cork, Cork, Ireland
| | - Tarini Shankar Ghosh
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Computational Biology, Indraprastha Institute of Information Technology Delhi (IIIT-Delhi), Delhi, India
| | - Jakki C. Cooney
- Department of Biological Science, University of Limerick, Limerick, Ireland
| | - Ann-Marie Tobin
- Department of Dermatology, Tallaght University Hospital, Dublin, Ireland
| | - Michelle Murphy
- Department of Dermatology, South Infirmary Victoria University Hospital, Cork, Ireland
- School of Medicine, University College Cork, Cork, Ireland
| | - Eibhlís M. O’Connor
- Department of Biological Science, University of Limerick, Limerick, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Health Research Institute, University of Limerick, Limerick, Ireland
| | - Fergus Shanahan
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Medicine, University College Cork, Cork, Ireland
| | - Paul W. O’Toole
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
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Oh SJ, Kim HJ, Lee CK. A dose-dependent increase in the risk of inflammatory bowel disease after exposure to broad-spectrum antibiotics: A national population study in Korea. Aliment Pharmacol Ther 2023; 58:191-206. [PMID: 37154240 DOI: 10.1111/apt.17542] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/26/2022] [Accepted: 04/24/2023] [Indexed: 05/10/2023]
Abstract
BACKGROUND The association between antibiotic use and risk of inflammatory bowel disease (IBD), particularly among adults, remains unclear. Furthermore, there is a scarcity of data among non-Western countries. AIMS To investigate the association and dose-response relationships between antibiotic use and subsequent IBD risk across all ages METHODS: This population-based case-control analysis used data from the Korean National Health Insurance Service database (2004-2018). We compared 68,633 patients with new-onset IBD to matched controls (n = 343,165) using multivariable conditional logistic regression analysis. We also examined the dose-response relationship using non-linear regression analysis, and separately analysed childhood-onset IBD (aged ≤14 years) risk following early-life antibiotic exposure. RESULTS The mean age at diagnosis was 45.2 ± 16.8 years. Antibiotic prescriptions between 2 and 5 years before diagnosis significantly increased the odds of developing IBD (adjusted odds ratio [OR], 1.24; 95% confidence interval [CI]: 1.21-1.27). Additionally, sensitivity analysis revealed an elevated risk up to 9 years before diagnosis. Broad-spectrum antibiotics increased IBD risk, independent of gastroenteritis. A distinct dose-response relationship was observed irrespective of the IBD subtype and study population (all p < 0.001). Furthermore, antibiotic exposure within the first year of life was linked with the risk of childhood-onset IBD (OR, 1.51; 95% CI: 1.25-1.82). CONCLUSIONS Broad-spectrum antibiotics dose-dependently increased the risk for IBD in the Korean population. Our findings provide a fundamental epidemiological basis for identifying antibiotic use as a significant risk factor for IBD across different environmental backgrounds.
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Affiliation(s)
- Shin Ju Oh
- Department of Gastroenterology, Center for Crohn's and Colitis, Kyung Hee University College of Medicine, Seoul, South Korea
| | - Hyo Jong Kim
- Department of Gastroenterology, Center for Crohn's and Colitis, Kyung Hee University College of Medicine, Seoul, South Korea
| | - Chang Kyun Lee
- Department of Gastroenterology, Center for Crohn's and Colitis, Kyung Hee University College of Medicine, Seoul, South Korea
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Liu H, Chen R, Wen S, Li Q, Lai X, Zhang Z, Sun L, Sun S, Cao F. Tea (Camellia sinensis) ameliorates DSS-induced colitis and liver injury by inhibiting TLR4/NF-κB/NLRP3 inflammasome in mice. Biomed Pharmacother 2023; 158:114136. [PMID: 36535201 DOI: 10.1016/j.biopha.2022.114136] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/03/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
The gut-liver axis is a bidirectional relationship between the gut with its microbiota and the hepatic. Ulcerative colitis (UC) disrupts the intestinal barrier and influx of intestinal microorganisms and their products into the liver, which trigger liver injury. Tea consumption is associated with a low incidence of UC in Asian countries. In this study, we revealed the mechanisms of six types of tea water extracts (TWEs) obtained from the leaves of Camellia sinensis on the dextran sodium sulfate (DSS)-induced colitis and liver injury in mice. The TWEs significantly restored mucin production and increased the expression levels of tight junction (TJ) proteins such as zonula occludens-1 (ZO-1), occluding, and claudin-1. In addition, TWEs also reduced the levels of pro-inflammatory cytokines in the colon and liver tissue by inactivating the NF-κB/NLRP3. Moreover, TEWs treatment promoted the integrity of the intestinal barrier to reduce serum lipopolysaccharide (LPS) levels, thereby reducing liver injury caused by intestinal microbial translocation and LPS induction. Analysis of 16 S rRNA microbial sequencing revealed that tea water extracts (TWEs) restored the DSS-induced gut dysbiosis. Interestingly, our results showed that the degree of fermentation of tea leaves was negatively associated with the alleviation of DSS-induced colitis effects, and there was also an overall negative trend with colitis-induced liver injury, except for black tea. Taken together, tea consumption mitigated DSS-induced colitis and liver injury in mice via inhibiting the TLR4/NF-κB/NLRP3 inflammasome pathway.
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Affiliation(s)
- Haiyan Liu
- College of Horticulture, South China Agricultural University, Guangzhou 510000, China
| | - Ruohong Chen
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/ Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation & Utilization, Guangzhou 510640, China
| | - Shuai Wen
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/ Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation & Utilization, Guangzhou 510640, China
| | - Qiuhua Li
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/ Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation & Utilization, Guangzhou 510640, China
| | - Xingfei Lai
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/ Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation & Utilization, Guangzhou 510640, China
| | - Zhenbiao Zhang
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/ Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation & Utilization, Guangzhou 510640, China
| | - Lingli Sun
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/ Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation & Utilization, Guangzhou 510640, China
| | - Shili Sun
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/ Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation & Utilization, Guangzhou 510640, China.
| | - Fanrong Cao
- College of Horticulture, South China Agricultural University, Guangzhou 510000, China.
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Wu Y, Ran L, Yang Y, Gao X, Peng M, Liu S, Sun L, Wan J, Wang Y, Yang K, Yin M, Chunyu W. Deferasirox alleviates DSS-induced ulcerative colitis in mice by inhibiting ferroptosis and improving intestinal microbiota. Life Sci 2023; 314:121312. [PMID: 36563842 DOI: 10.1016/j.lfs.2022.121312] [Citation(s) in RCA: 56] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
AIMS Ulcerative colitis (UC) is a chronic inflammatory bowel disease (IBD) caused by multiple factors. Studies have shown that epithelial cell damage was associated with ferroptosis in UC. Therefore, our research focused on the effects and mechanism of iron chelator deferasirox in UC. MAIN METHODS The UC model was induced by 2.5 % dextran sulfate sodium salt (DSS) and administered with deferasirox (10 mg/kg) for 7 days. Histological pathologies, inflammatory response, ferrous iron contents, oxidative stress and ferroptosis regulators were determined. Intestinal microbiota alteration and short-chain fatty acids (SCFAs) production were analyzed through 16S rRNA gene sequencing and targeted metabolomics. KEY FINDINGS Deferasirox significantly relieved the DSS-induced UC in mice, as evidenced by weight loss, survival rate, colon length shortening disease activity index (DAI) score and histology score. Deferasirox treatment reduced the level of pro inflammatory cytokines (IL-1β, IL-6, TNF-α and INF-γ). Ferroptosis was induced in mice with UC, as evidenced by ferrous iron accumulation, increased ROS production, SOD and GSH depletion, decreased the expression of GPX-4 and FTH, accompanied by increased expression of TF. Deferasirox treatment strongly reversed the alterations caused by ferroptotic characteristics in DSS-induced mice. Moreover, deferasirox treatment reshaped the composition of intestinal microbiota. The results revealed the genera of norank_f__Muribaculaceae, Lachnospiraceae_NK4A136_group, Prevotellaceae_UCG-001, Odoribacter and Blautia were increased distinctly, while Escherichia-Shigella and Streptococcus were significantly decreased by deferasirox treatment. Targeted metabolomics analysis indicated the SCFAs production enhanced in deferasirox-treated mice. SIGNIFICANCE Our results suggested that deferasirox could treat DSS-induced UC in mice by inhibiting ferroptosis and improving intestinal microbiota.
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Affiliation(s)
- Yi Wu
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China; Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Lei Ran
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Yue Yang
- Department of Anesthesiology, The Affiliated Hospital of Yunnan University, Kunming, China
| | - Xianling Gao
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China; Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Man Peng
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Sida Liu
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Le Sun
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Jia Wan
- Department of Vascular Surgery, The Affiliated Hospital of Yunnan University, Kunming, China
| | - Yu Wang
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Kun Yang
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, China.
| | - Min Yin
- School of Medicine, Yunnan University, Kunming, China.
| | - Weixun Chunyu
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China.
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9
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Hasan N, Yang H. Evaluation of microbial and vancomycin treatments in ulcerative colitis in murine models. PLoS One 2023; 18:e0285613. [PMID: 37167242 PMCID: PMC10174502 DOI: 10.1371/journal.pone.0285613] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 04/26/2023] [Indexed: 05/13/2023] Open
Abstract
BACKGROUND Despite the number of available therapies for ulcerative colitis (UC), severe side effects and high cost has limited their clinical application. Thus, finding new alternative strategies with minimal side effects is inevitable. Therefore, this study aimed to compare the effectiveness of different therapeutic approaches in DSS-induced colitis. METHODS Firstly, we designed oral bio-therapeutic products, Live Bacterial Products (LBP), which include a mixture of fecal bacteria strains isolated from healthy mice and prepared by microencapsulation and freeze-dried techniques. Then we investigated the efficiency of 7 days of freeze-dried FMT, LBP, and vancomycin treatments in DSS-induced colitis. Secondly, we compared the effect of 15 days of microbial therapies (freeze-dried powder of FMT and LBP microcapsules) and seven days of oral vancomycin on the severity of colitis in mice. Furthermore, the levels of IL-1β and TNF-α were measured in serum by ELISA, and the fecal microbiota diversity was analyzed by high-throughput sequencing for all mice groups. RESULTS After seven days of treatments, our results indicated that oral vancomycin reduced the severity of DSS-induced colitis in mice, where weight gain and a decrease in IL-1 β and TNF-α levels were observed in the vancomycin group compared with other treatment groups. While after two weeks of treatment, the LBP microcapsules were able to reduce the severity of colitis. And at the end of the treatment period, weight gain and a decrease in the DAI scores and the levels of IL-1β and TNF-α were noted in the LBP treatment group compared to other treatment groups. By high-throughput sequencing of the 16S rRNA gene, our results showed that while the microcapsules LBP treatment increased the fecal microbial diversity, after vancomycin therapy, most of the fecal microbiota genera and operational taxonomic units (OTUs) were depleted. CONCLUSION Our results concluded that treatment duration and preparation methods affect the microbial therapies' efficiency in UC. Furthermore, this study highlighted the negative consequences of oral vancomycin administration on gut health that should be known before using this medication.
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Affiliation(s)
- Nihal Hasan
- Department of Clinical Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, People's Republic of China
- Faculty of Health Science, Al-Baath University, Homs, Syria
| | - Hongyi Yang
- Department of Microbiology, Northeast Forestry University, Harbin, Heilongjiang, People's Republic of China
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10
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Rational consideration of Akkermansia muciniphila targeting intestinal health: advantages and challenges. NPJ Biofilms Microbiomes 2022; 8:81. [PMID: 36253412 PMCID: PMC9576740 DOI: 10.1038/s41522-022-00338-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 09/20/2022] [Indexed: 11/09/2022] Open
Abstract
As one of the promising next-generation probiotics (NGPs), Akkermansia muciniphila, a well-known mucin-degrading bacterium, has been proven to be closely related to the metabolic diseases of its human host. However, the role of A. muciniphila in the host’s intestinal health remains ambiguous. Here, we comprehensively summarize and discuss the characteristics, the distribution, and the colonization of A. muciniphila in the human gastrointestinal tract (GIT). We propose that the application of A. muciniphila as a biomarker for longevity, for diagnostics and prognostics of intestinal diseases, or for intestinal health should be cautiously considered. Precise dietary regulation can mediate the treatment of intestinal diseases by altering the abundance of A. muciniphila. Although the beneficial role of A. muciniphila and its component in intestinal inflammation has been discovered, in gnotobiotic mice with specific gut microbiota, certain genotype, and colorectal cancer, or in animal models infected with a specific pathogen, A. muciniphila may be related to the occurrence and development of intestinal diseases. Genomic analysis, emphasizing the strain-level phylogenetic differences of A. muciniphila, indicates that a clear description and discussion of each strain is critical before its practical application. Our review provides much needed insight for the precise application of A. muciniphila.
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11
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Intercontinental Gut Microbiome Variances in IBD. Int J Mol Sci 2022; 23:ijms231810868. [PMID: 36142786 PMCID: PMC9506019 DOI: 10.3390/ijms231810868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/17/2022] Open
Abstract
The development of biomarkers for inflammatory bowel disease (IBD) diagnosis would be relevant in a generalized context. However, intercontinental investigation on these microbial biomarkers remains scarce. We examined taxonomic microbiome variations in IBD using published DNA shotgun metagenomic data. For this purpose, we used sequenced data from our previous Spanish Crohn’s disease (CD) and ulcerative colitis (UC) cohort, downloaded sequence data from a Chinese CD cohort, and downloaded taxonomic and functional profiling tables from a USA CD and UC cohort. At the global level, geographical location and disease phenotype were the main explanatory covariates of microbiome variations. In healthy controls (HC) and UC, geography turned out to be the most important factor, while disease intestinal location was the most important one in CD. Disease severity correlated with lower alpha-diversity in UC but not in CD. Across geography, alpha-diversity was significantly different independently of health status, except for CD. Despite recruitment from different countries and with different disease severity scores, CD patients may harbor a very similar microbial taxonomic profile. Our study pointed out that geographic location, disease activity status, and other environmental factors are important contributing factors in microbiota changes in IBD. We therefore strongly recommend taking these factors into consideration for future IBD studies to obtain globally valid and reproducible biomarkers.
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Wu Z, Su R. Pesticide thiram exposure alters the gut microbial diversity of chickens. Front Microbiol 2022; 13:966224. [PMID: 36160266 PMCID: PMC9493260 DOI: 10.3389/fmicb.2022.966224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
Thiram is a major dithiocarbamate pesticide commonly found in polluted field crops, feed, and rivers. Environmental thiram exposure has been demonstrated to cause angiogenesis and osteogenesis disorders in chickens, but information regarding thiram influences on gut microbiota, apoptosis, and autophagy in chickens has been insufficient. Here, we explored the effect of thiram exposure on gut microbiota, apoptosis, and autophagy of chickens. Results demonstrated that thiram exposure impaired the morphology and structure of intestinal and liver tissues. Moreover, thiram exposure also triggered liver apoptosis and autophagy. The gut microbiota in chickens exposed to thiram exhibited a significant decline in alpha diversity, accompanied by significant shifts in taxonomic compositions. Bacterial taxonomic analysis indicated that thiram exposure causes a significant reduction in the levels of eight genera, as well as a significant increase in the levels of two phyla and 10 genera. Among decreased bacterial genera, seven genera even cannot be observed in the thiram-induced chickens. In summary, this study demonstrated that thiram exposure not only dramatically altered the gut microbial diversity and composition but also induced liver apoptosis and autophagy in chickens. Importantly, this study also conveyed a key message that the dysbiosis of gut microbiota may be one of the major pathways for thiram to exert its toxic effects.
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13
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Crohn’s Disease, Host–Microbiota Interactions, and Immunonutrition: Dietary Strategies Targeting Gut Microbiome as Novel Therapeutic Approaches. Int J Mol Sci 2022; 23:ijms23158361. [PMID: 35955491 PMCID: PMC9369148 DOI: 10.3390/ijms23158361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/22/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022] Open
Abstract
Crohn’s disease (CD) is a complex, disabling, idiopathic, progressive, and destructive disorder with an unknown etiology. The pathogenesis of CD is multifactorial and involves the interplay between host genetics, and environmental factors, resulting in an aberrant immune response leading to intestinal inflammation. Due to the high morbidity and long-term management of CD, the development of non-pharmacological approaches to mitigate the severity of CD has recently attracted great attention. The gut microbiota has been recognized as an important player in the development of CD, and general alterations in the gut microbiome have been established in these patients. Thus, the gut microbiome has emerged as a pre-eminent target for potential new treatments in CD. Epidemiological and interventional studies have demonstrated that diet could impact the gut microbiome in terms of composition and functionality. However, how specific dietary strategies could modulate the gut microbiota composition and how this would impact host–microbe interactions in CD are still unclear. In this review, we discuss the most recent knowledge on host–microbe interactions and their involvement in CD pathogenesis and severity, and we highlight the most up-to-date information on gut microbiota modulation through nutritional strategies, focusing on the role of the microbiota in gut inflammation and immunity.
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El Hage Chehade N, Ghoneim S, Shah S, Chahine A, Mourad FH, Francis FF, Binion DG, Farraye FA, Hashash JG. Efficacy of Fecal Microbiota Transplantation in the Treatment of Active Ulcerative Colitis: A Systematic Review and Meta-Analysis of Double-Blind Randomized Controlled Trials. Inflamm Bowel Dis 2022; 29:808-817. [PMID: 35766805 DOI: 10.1093/ibd/izac135] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Indexed: 02/06/2023]
Abstract
BACKGROUND Fecal microbiota transplantation (FMT) has been investigated as a treatment option for patients with inflammatory bowel disease with controversial results.We sought to perform a systematic review and meta-analysis to evaluate the benefit of FMT in patients with ulcerative colitis. METHODS Double-blind randomized controlled trials (RCTs) including adult patients with active ulcerative colitis who received either FMT or placebo were eligible for inclusion. Outcomes of interest included the rate of combined clinical and endoscopic remission, endoscopic remission or response, clinical remission or response, and specific adverse events. The results were pooled together using Reviewer Manager 5.4 software. Publication bias was assessed using the Egger's test. RESULTS Six RCTs involving 324 patients were included. Our findings demonstrate that compared with placebo, FMT has significant benefit in inducing combined clinical and endoscopic remission (odds ratio, 4.11; 95% confidence interval, 2.19-7.72; P < .0001). Subgroup analyses of influencing factors showed no differences between pooled or single stool donors (P = .71), fresh or frozen FMT (P = .35), and different routes or frequencies of delivery (P = .80 and .48, respectively). Pre-FMT antibiotics, bowel lavage, concomitant biologic therapy, and topical rectal therapy did not affect combined remission rates (P values of .47, .38, .28, and .40, respectively). Clinical remission or response and endoscopic remission or response were significantly higher in patients who received FMT compared with placebo (P < .05) without any differences in serious or specific adverse events. CONCLUSIONS FMT demonstrated a clinical and endoscopic benefit in the short-term treatment of active ulcerative colitis, with a comparable safety profile to placebo. Future RCTs are required to standardize study protocols and examine data on maintenance therapy.
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Affiliation(s)
- Nabil El Hage Chehade
- Department of Internal Medicine, MetroHealth Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - Sara Ghoneim
- Division of Gastroenterology and Hepatology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Sagar Shah
- Department of Internal Medicine, Ronald Reagan Medical Center, University of California, Los Angeles, Los Angeles, CA, USA
| | - Anastasia Chahine
- Division of Gastroenterology and Hepatology, University of California, Irvine Medical Center, Orange, CA, USA
| | - Fadi H Mourad
- Division of Gastroenterology and Hepatology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Fadi F Francis
- Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - David G Binion
- Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Francis A Farraye
- Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, FL, USA
| | - Jana G Hashash
- Division of Gastroenterology and Hepatology, American University of Beirut Medical Center, Beirut, Lebanon.,Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, FL, USA
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15
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Xu B, Liang S, Zhao J, Li X, Guo J, Xin B, Li B, Huo G, Ma W. Bifidobacterium animalis subsp. lactis XLTG11 improves antibiotic-related diarrhea by alleviating inflammation, enhancing intestinal barrier function and regulating intestinal flora. Food Funct 2022; 13:6404-6418. [PMID: 35616024 DOI: 10.1039/d1fo04305f] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Antibiotic-associated diarrhea (AAD) is a common side effect during antibiotic treatment. In this study, we evaluated the regulatory effect of Bifidobacterium animalis subsp. lactis XLTG11 on mouse diarrhea caused by antibiotic-induced intestinal flora disturbance. Then, two strains of Bifidobacterium animalis subsp. lactis XLTG11 and Bifidobacterium animalis subsp. lactis BB-12 were administered to AAD mice. We found that the recovery effect of using B. lactis XLTG11 was better than that of B. lactis BB-12. B. lactis XLTG11 reduced the pathological characteristics of the intestinal tract, and significantly reduced the levels of lipopolysaccharide (LPS), D-lactic acid (D-LA) and diamine oxidase (DAO) to decrease intestinal permeability. In addition, these two strains significantly increased the expression of aquaporin and tight junction proteins, and inhibited toll-like receptor 4 (TLR4)/activation of the nuclear factor-κB (NF-κB) signaling pathway, significantly increased the levels of anti-inflammatory cytokines and decreased levels of pro-inflammatory cytokines. Moreover, after treatment with B. lactis XLTG11, the contents of acetic acid, propionic acid, butyric acid and total short-chain fatty acids were significantly increased. Compared with the MC group, B. lactis XLTG11 increased the abundance and diversity of the intestinal flora and changed the composition of the intestinal flora. We found that B. lactis XLTG11 can promote the recovery of intestinal flora and mucosal barrier function, thereby effectively improving AAD-related symptoms, providing a scientific basis for future clinical applications.
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Affiliation(s)
- Baofeng Xu
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Shengnan Liang
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Jiayi Zhao
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Xuetong Li
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Jiayao Guo
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Bowen Xin
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Bailiang Li
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Guicheng Huo
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Weiwei Ma
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Haerbin 150000, China.
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16
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Meng C, Feng S, Hao Z, Dong C, Liu H. Changes in gut microbiota composition with age and correlations with gut inflammation in rats. PLoS One 2022; 17:e0265430. [PMID: 35290412 PMCID: PMC8923432 DOI: 10.1371/journal.pone.0265430] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 03/02/2022] [Indexed: 11/18/2022] Open
Abstract
Increasing evidences indicate that gut microbiota composition is associated with multiple inflammatory diseases. However, little is known about how gut microbiota changes with age and correlations with gut inflammation at sexual maturity stage of healthy individuals. Elucidating the dynamic changes of gut microbiota in healthy individuals at the sexual maturity stage and correlations with gut inflammation can provide clues for early risk assessment of gut diseases at the sexual maturity stage. Here, the shift in gut bacteria and its relationship with gut inflammation at the sexual maturity stage were explored. Sprague–Dawley rats at the sexual maturity stage were used in this study. 16S rRNA gene sequencing was performed to decipher gut bacteria shifts from the 7th week to the 9th week, and enzyme-linked immunosorbent assay (ELISA) was used to measure gut inflammation and gut barrier permeability. We found an increase in bacterial richness with age and a decrease in bacterial diversity with age. The gut bacteria were primarily dominated by the phyla Firmicutes and Bacteroides and the genus Prevotella. The relative abundance of Firmicutes increased with age, and the relative abundance of Bacteroides decreased with age. There was a positive correlation between body weight and the Firmicutes:Bacteroides ratio. More and more gut microbiota participated in the host gut inflammation and barrier permeability regulation with age. Ruminococcus was the only gut bacteria participated in gut inflammation and barrier permeability regulation both in the 7th week and the 15th week. These results provide a better understanding of the relationship between gut bacteria and gut inflammation in sexually mature rats and show that Ruminococcus may be a potential indicator for early risk assessment of gut inflammation.
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Affiliation(s)
- Chen Meng
- Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Siyuan Feng
- Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Zikai Hao
- Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
- State Key Laboratory of Software Development Environment, Beihang University, Beijing, China
| | - Chen Dong
- Laboratory of Sport Nutrition and Intelligent Cooking, Shandong Sport University, Jinan, China
- * E-mail: (CD); (HL)
| | - Hong Liu
- Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
- International Joint Research Center of Aerospace Biotechnology & Medical Engineering, Beihang University, Beijing, China
- * E-mail: (CD); (HL)
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Jiang QL, Lu Y, Zhang MJ, Cui ZY, Pei ZM, Li WH, Lu LG, Wang JJ, Lu YY. Mucosal bacterial dysbiosis in patients with nodular lymphoid hyperplasia in the terminal ileum. World J Gastroenterol 2022; 28:811-824. [PMID: 35317097 PMCID: PMC8900573 DOI: 10.3748/wjg.v28.i8.811] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/19/2021] [Accepted: 01/14/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Nodular lymphoid hyperplasia (NLH) in the small intestine is a rare benign lesion characterized by multiple small nodules on the intestinal surface. Patients with terminal ileal NLH may experience long-term abdominal pain, diarrhea, and abdominal distension, among other symptoms. Supplementation with probiotics could mitigate these symptoms. NLH is linked to the immune system, and it may result from accumulation of plasma-cell precursors due to a maturational defect during the development of B lymphocytes. The intestinal microbiome plays an essential role in the immune system. Thus, we speculate that the gut flora plays a key role in terminal ileal NLH.
AIM To explore the correlation between intestinal flora and terminal ileal NLH.
METHODS We collected mucosal biopsy samples that were obtained via colonoscopy from 15 patients with terminal ileal NLH (the test group) and 15 normal subjects (the control group). We subsequently performed 16S-rRNA gene amplicon sequencing of these samples, and the results were evaluated using alpha diversity, beta diversity and microbial composition analyses. The Phylogenetic Investigation of Communities by Reconstruction of Unobserved States was used to predict the metabolic pathways and orthologous groups according to the Kyoto Encyclopedia of Genes and Genomes database.
RESULTS Compared with the control group, the terminal ileal NLH group showed an increased alpha diversity (P < 0.05). The overall intestinal microbiota in the NLH group was significantly different from that of the control group (P < 0.05), implying that there was the dysbiosis in the terminal ileal NLH patients. The relative abundance of phylum Bacteroidetes was significantly lower in the NLH group, while that of Patescibacteria and Campilobacterota was significantly higher. The genus Bacteroides was the dominant gut microbiota in both groups, but its abundance was significantly lower in the test group than it was in the control group. Conversely, the relative abundances of Haemophilus, Streptococcus, Pseudomonas, Actinomyces, TM7X, Fusobacterium nucleatum, Parvimonas, Granulicatella, Helicobacter, and the [Eubacterium] nodatum group were significantly higher in the test group than they were in the control group. In addition, several altered metabolic pathways, orthologous groups, and modules were found. For example, the Peptidoglycan biosynthesis and Aminoacyl tRNA biosynthesis were both increased in the test group.
CONCLUSION Maintaining the microbial balance and supplementing targeted protective bacteria could improve symptoms and potentially reduce the risk of lymphoma transformation in patients with terminal ileal NLH.
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Affiliation(s)
- Qiao-Li Jiang
- Department of Gastroenterology, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201803, China
| | - You Lu
- Department of Gastroenterology, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201803, China
| | - Meng-Jie Zhang
- Department of Gastroenterology, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201803, China
| | - Zhen-Yu Cui
- Department of Gastroenterology, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201803, China
| | - Zhong-Mei Pei
- Department of Gastroenterology, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201803, China
| | - Wen-Hua Li
- Department of Gastroenterology, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201803, China
| | - Lun-Gen Lu
- Department of Gastroenterology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Jing-Jing Wang
- Shanghai Key Laboratory of Pancreatic Diseases, Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Ying-Ying Lu
- Department of Gastroenterology, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201803, China
- Department of Gastroenterology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
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18
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YU S, HUANG Y, WU Y, WU Y, HUANG G, XIONG J, YOU Y. Curcumin chitosan microsphere improve ulcerative colitis inflammatory response by regulating miR-224-3p/TLR4 axise. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.65721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Shujiao YU
- The First Affiliated Hospital of Nanchang University, China
| | - Yuanhua HUANG
- Hengyang Hospital Affiliated to Hunan University of Chinese Medicine, China
| | - Yinglin WU
- First Affiliated Hospital of Nanchang University, China
| | - Yan WU
- First Affiliated Hospital of Nanchang University, China
| | - Guodong HUANG
- First Affiliated Hospital of Nanchang University, China
| | - Jun XIONG
- First Affiliated Hospital of Nanchang University, China
| | - Yu YOU
- First Affiliated Hospital of Nanchang University, China
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H19 Overexpression Improved Efficacy of Mesenchymal Stem Cells in Ulcerative Colitis by Modulating the miR-141/ICAM-1 and miR-139/CXCR4 Axes. DISEASE MARKERS 2021; 2021:7107705. [PMID: 34630738 PMCID: PMC8494579 DOI: 10.1155/2021/7107705] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/30/2021] [Accepted: 09/02/2021] [Indexed: 12/30/2022]
Abstract
Overexpression of C-X-C motif chemokine receptor 4 (CXCR4) and intercellular cell adhesion molecule-1 (ICAM-1) may promote homing of mesenchymal stem cells (MSC). In this study, we treated ulcerative colitis animals with MSC preconditioned with or without H19 and compared the therapeutic effect of MSC and MSC-H19. We evaluated the regulatory relationship of H19 vs. miR-141/miR-139 and miR-141/miR-139 vs. ICAM-1/CXCR4. We established an ulcerative colitis mouse model to assess the effect of MSC and MSC-H19. H19 was found to bind to miR-141 and miR-139. The activity of H19 was strongly decreased in cells c-transfected with miR-141/miR-139 and WT H19. ICAM-1 was confirmed to be targeted by miR-141 and CXCR4 was targeted by miR-139. The H19 expression showed a negative regulatory relationship with the miR-141 and miR-139 expression but a positive regulatory relationship with the ICAM-1 and CXCR4 expression. In summary, the overexpression of H19 in MSC downregulated miR-139 and miR-141, thus increasing the activity of their targets ICAM-1 and CXCR4, respectively, to exhibit therapeutic effects in ulcerative colitis.
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20
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Pang B, Jin H, Liao N, Li J, Jiang C, Shi J. Vitamin A supplementation ameliorates ulcerative colitis in gut microbiota-dependent manner. Food Res Int 2021; 148:110568. [PMID: 34507723 DOI: 10.1016/j.foodres.2021.110568] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 06/24/2021] [Accepted: 06/27/2021] [Indexed: 12/27/2022]
Abstract
Ulcerative colitis (UC), is a chronic relapsing inflammatory condition of the gastrointestinal track. The purpose of this study is to explore whether Vitamin A (VA) can treat UC and its mechanisms. A mouse model of UC was established using 3.0% (w/v) dextran sodium sulfate (DSS). VA was used to treat UC by intragastric administration of 5000 international unit (IU) retinyl acetate. Fecal microbiota transplantation (FMT) was also used to treat the UC model mice to verify the effect of influenced gut microbiota. The content of short-chain fatty acids (SCFAs) in cecal contents was quantitatively detected by gas chromatography and mass spectrometry. VA supplementation significantly ameliorated UC. 16S rRNA sequencing indicated that VA-treated mice exhibited much more abundant gut microbial diversity and flora composition. Targeted metabolomics analysis manifested the increased production of SCFAs in VA-treated mice. Gut microbiota depletion and FMT results confirmed the gut microbiota-dependent mechanism as that VA relieved UC via regulating gut microbiota: increase in SCFA-producing genera and decrease in UC-related genera. The restore of intestinal barrier and the inhibition of inflammation were also found to contribute to the amelioration of UC by VA. It was concluded that a VA supplement was enough to cause a significant change in gut microbiota and amelioration of UC.
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Affiliation(s)
- Bing Pang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shaanxi Province 710072, China
| | - Han Jin
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shaanxi Province 710072, China.
| | - Ning Liao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shaanxi Province 710072, China
| | - Junjun Li
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shaanxi Province 710072, China
| | - Chunmei Jiang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shaanxi Province 710072, China.
| | - Junling Shi
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shaanxi Province 710072, China.
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21
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Mocanu V, Park H, Dang J, Hotte N, Thiesen A, Laffin M, Wang H, Birch D, Madsen K. Timing of Tributyrin Supplementation Differentially Modulates Gastrointestinal Inflammation and Gut Microbial Recolonization Following Murine Ileocecal Resection. Nutrients 2021; 13:nu13062069. [PMID: 34204288 PMCID: PMC8233937 DOI: 10.3390/nu13062069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/12/2021] [Accepted: 06/14/2021] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Gastrointestinal surgery imparts dramatic and lasting imbalances, or dysbiosis, to the composition of finely tuned microbial ecosystems. The aim of the present study was to use a mouse ileocecal resection (ICR) model to determine if tributyrin (TBT) supplementation could prevent the onset of microbial dysbiosis or alternatively enhance the recovery of the gut microbiota and reduce gastrointestinal inflammation. METHODS Male wild-type (129 s1/SvlmJ) mice aged 8-15 weeks were separated into single cages and randomized 1:1:1:1 to each of the four experimental groups: control (CTR), preoperative TBT supplementation (PRE), postoperative TBT supplementation (POS), and combined pre- and postoperative supplementation (TOT). ICR was performed one week from baseline assessment with mice assessed at 1, 2, 3, and 4 weeks postoperatively. Primary outcomes included evaluating changes to gut microbial communities occurring from ICR to 4 weeks. RESULTS A total of 34 mice that underwent ICR (CTR n = 9; PRE n = 10; POS n = 9; TOT n = 6) and reached the primary endpoint were included in the analysis. Postoperative TBT supplementation was associated with an increased recolonization and abundance of anaerobic taxa including Bacteroides thetaiotomicorn, Bacteroides caecimuris, Parabacteroides distasonis, and Clostridia. The microbial recolonization of PRE mice was characterized by a bloom of aerotolerant organisms including Staphylococcus, Lactobacillus, Enteroccaceae, and Peptostreptococcacea. PRE mice had a trend towards decreased ileal inflammation as evidenced by decreased levels of IL-1β (p = 0.09), IL-6 (p = 0.03), and TNF-α (p < 0.05) compared with mice receiving TBT postoperatively. In contrast, POS mice had trends towards reduced colonic inflammation demonstrated by decreased levels of IL-6 (p = 0.07) and TNF-α (p = 0.07). These changes occurred in the absence of changes to fecal short-chain fatty acid concentrations or histologic injury scoring. CONCLUSIONS Taken together, the results of our work demonstrate that the timing of tributyrin supplementation differentially modulates gastrointestinal inflammation and gut microbial recolonization following murine ICR.
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Affiliation(s)
- Valentin Mocanu
- Department of Surgery, University of Alberta, Edmonton, AB T6G 2R3, Canada; (J.D.); (M.L.); (H.W.); (D.B.)
- Correspondence:
| | - Heekuk Park
- Columbia University Medical Center, New York, NY 10032, USA;
| | - Jerry Dang
- Department of Surgery, University of Alberta, Edmonton, AB T6G 2R3, Canada; (J.D.); (M.L.); (H.W.); (D.B.)
| | - Naomi Hotte
- Department of Medicine, University of Alberta, Edmonton, AB T6G 2R3, Canada;
| | - Aducio Thiesen
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2R3, Canada;
| | - Michael Laffin
- Department of Surgery, University of Alberta, Edmonton, AB T6G 2R3, Canada; (J.D.); (M.L.); (H.W.); (D.B.)
| | - Haili Wang
- Department of Surgery, University of Alberta, Edmonton, AB T6G 2R3, Canada; (J.D.); (M.L.); (H.W.); (D.B.)
| | - Daniel Birch
- Department of Surgery, University of Alberta, Edmonton, AB T6G 2R3, Canada; (J.D.); (M.L.); (H.W.); (D.B.)
| | - Karen Madsen
- Division of Gastroenterology, University of Alberta, Edmonton, AB T6G 2R3, Canada;
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Intestinal Inflammation and Altered Gut Microbiota Associated with Inflammatory Bowel Disease Render Mice Susceptible to Clostridioides difficile Colonization and Infection. mBio 2021; 12:e0273320. [PMID: 34126769 PMCID: PMC8262858 DOI: 10.1128/mbio.02733-20] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Clostridioides difficile is a noteworthy pathogen in patients with inflammatory bowel disease (IBD). Patients with IBD who develop concurrent C. difficile infection (CDI) experience increased morbidity and mortality. IBD is associated with intestinal inflammation and alterations of the gut microbiota, both of which can diminish colonization resistance to C. difficile. Here, we describe the development of a mouse model to explore the role that IBD-induced changes of the gut microbiome play in susceptibility to C. difficile. Helicobacter hepaticus, a normal member of the mouse gut microbiota, triggers pathological inflammation in the distal intestine akin to human IBD in mice that lack intact interleukin 10 (IL-10) signaling. We demonstrate that mice with H. hepaticus-induced IBD were susceptible to C. difficile colonization in the absence of other perturbations, such as antibiotic treatment. Concomitant IBD and CDI were associated with significantly worse disease than observed in animals with colitis alone. Development of IBD resulted in a distinct intestinal microbiota community compared to that of non-IBD controls. Inflammation played a critical role in the susceptibility of animals with IBD to C. difficile colonization, as mice colonized with an isogenic mutant of H. hepaticus that triggers an attenuated intestinal inflammation maintained full colonization resistance. These studies with a novel mouse model of IBD and CDI emphasize the importance of host responses and alterations of the gut microbiota in susceptibility to C. difficile colonization and infection in the setting of IBD.
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Pang B, Jin H, Liao N, Li J, Jiang C, Shao D, Shi J. Lactobacillus rhamnosus from human breast milk ameliorates ulcerative colitis in mice via gut microbiota modulation. Food Funct 2021; 12:5171-5186. [PMID: 33977948 DOI: 10.1039/d0fo03479g] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Gut microbiota imbalance is one of the major causes of ulcerative colitis (UC). L. rhamnosus SHA113 (LRS), a strain isolated from healthy human milk, influences the regulation of gut flora. This study aims to determine whether this strain can ameliorate UC by modulating gut microbiota. Mouse models of UC were established using C57BL/6Cnc mice with intragastric administration of 3.0% (w/v) dextran sodium sulfate (DSS). LRS was used to treat the mouse models of UC with 109 cfu mL-1 cell suspension via intragastric administration. To verify the effect of gut microbiota on UC, fecal microbiota collected from the mice after the treatment with LRS were also used to treat the UC mouse models (FMT). The severity of UC was evaluated based on body weight, colon length, disease activity index (DAI), and hematoxylin-eosin staining. The microbial composition was analyzed by 16S rRNA sequencing. The mRNA expression levels of cytokines, mucins, tight junction proteins, and antimicrobial peptides in the gastrointestinal tract were detected by quantitative real-time polymerase chain reaction. The short-chain fatty acid (SCFAs) in the cecal contents of all mice were quantitatively detected by gas chromatography and mass spectrometry. Both LRS and FMT exerted excellent therapeutic effects on UC, as evidenced by the reduction in body weight loss, colon length, and colon structural integrity, as well as the increase in the DAI (disease activity index). LRS and FMT treatments showed similar effects: (1) an increase of total SCFA production in the cecal contents and the abundance of gut microbial diversity and flora composition; (2) decreases in two genera (Parabacteroides and Escherichia/Shigella) related to the DAI and the enhancement of SCFAs and IL-10 positively related genera in the gut microbiota (Bilophila, Roseburia, Akkermansia, and Bifidobacterium); (3) downregulation of the expression of tumor necrosis factor-α, interleukin IL-6, and IL-1β, and upregulation of the expression of the anti-inflammatory cytokine IL-10; and (4) upregulation of the expression of mucins (Muc1-4) and tight junction protein ZO-1. Overall, L. rhamnosus SHA113 relieves UC via the regulation of gut microbiota: increases in SCFA-producing genera and decreases in UC-related genera. In addition, a single strain is sufficient to induce a significant change in the gut microbiota and exert therapeutic effects on UC.
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Affiliation(s)
- Bing Pang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shaanxi Province 710072, China. NingLiao
| | - Han Jin
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shaanxi Province 710072, China. NingLiao
| | - Ning Liao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shaanxi Province 710072, China. NingLiao
| | - Junjun Li
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shaanxi Province 710072, China. NingLiao
| | - Chunmei Jiang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shaanxi Province 710072, China. NingLiao
| | - Dongyan Shao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shaanxi Province 710072, China. NingLiao
| | - Junling Shi
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shaanxi Province 710072, China. NingLiao
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Pinocembrin alleviates ulcerative colitis in mice via regulating gut microbiota, suppressing TLR4/MD2/NF-κB pathway and promoting intestinal barrier. Biosci Rep 2021; 40:225839. [PMID: 32687156 PMCID: PMC7391130 DOI: 10.1042/bsr20200986] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/24/2020] [Accepted: 07/17/2020] [Indexed: 12/11/2022] Open
Abstract
Pinocembrin, a plant-derived flavonoid, has a variety of pharmacological activities, including anti-infection, anti-cancer, anti-inflammation, cardiovascular protection, etc. However, the mechanism of pinocembrin on the anti-colitis efficacy remains elusive and needs further investigation. Here, we reported that pinocembrin eased the severity of dextran sulfate sodium (DSS)-induced colitis in mice by suppressing the abnormal activation of toll-like receptor 4 (TLR4)/nuclear factor-kappa B (NF-κB) signal pathway in vivo. In addition, the gut microbiota was disordered in DSS colitis mice, which was associated with a significant decrease in microbiota diversity and a great shift in bacteria profiles; however, pinocembrin treatment improved the imbalance of gut microbiota and made it similar to that in normal mice. On the other hand, in vitro, pinocembrin down-regulated the TLR4/NF-κB signaling cascades in lipopolysaccharide (LPS)-stimulated macrophages. At the upstream level, pinocembrin competitively inhibited the binding of LPS to myeloid differentiation protein 2 (MD2), thereby blocking the formation of receptor multimer TLR4/MD2·LPS. Furthermore, pinocembrin dose-dependently promoted the expression of tight junction proteins (ZO-1, Claudin-1, Occludin and JAM-A) in Caco-2 cells. In conclusion, our work presented evidence that pinocembrin attenuated DSS-induced colitis in mouse, at least in part, via regulating intestinal microbiota, inhibiting the over-activation of TLR4/MD2/NF-κB signaling pathway, and improving the barriers of intestine.
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25
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Kitani T, Maddipatla SC, Madupuri R, Greco C, Hartmann J, Baraniuk JN, Vasudevan S. In Search of Newer Targets for Inflammatory Bowel Disease: A Systems and a Network Medicine Approach. NETWORK AND SYSTEMS MEDICINE 2021. [DOI: 10.1089/nsm.2020.0012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Takashi Kitani
- Department of Neurology, Molecular and Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - Sushma C. Maddipatla
- Department of Biochemistry, Molecular and Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - Ramya Madupuri
- Department of Biochemistry, Molecular and Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - Christopher Greco
- Department of Biochemistry, Molecular and Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - Jonathan Hartmann
- Dahlgren Memorial Library, Graduate Health and Life Sciences Research Library, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - James N. Baraniuk
- Division of Rheumatology, Immunology and Allergy, Department of Medicine, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - Sona Vasudevan
- Department of Biochemistry, Molecular and Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia, USA
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26
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Clooney AG, Eckenberger J, Laserna-Mendieta E, Sexton KA, Bernstein MT, Vagianos K, Sargent M, Ryan FJ, Moran C, Sheehan D, Sleator RD, Targownik LE, Bernstein CN, Shanahan F, Claesson MJ. Ranking microbiome variance in inflammatory bowel disease: a large longitudinal intercontinental study. Gut 2021; 70:499-510. [PMID: 32536605 PMCID: PMC7873428 DOI: 10.1136/gutjnl-2020-321106] [Citation(s) in RCA: 119] [Impact Index Per Article: 39.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 05/12/2020] [Accepted: 05/14/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The microbiome contributes to the pathogenesis of inflammatory bowel disease (IBD) but the relative contribution of different lifestyle and environmental factors to the compositional variability of the gut microbiota is unclear. DESIGN Here, we rank the size effect of disease activity, medications, diet and geographic location of the faecal microbiota composition (16S rRNA gene sequencing) in patients with Crohn's disease (CD; n=303), ulcerative colitis (UC; n = 228) and controls (n=161), followed longitudinally (at three time points with 16 weeks intervals). RESULTS Reduced microbiota diversity but increased variability was confirmed in CD and UC compared with controls. Significant compositional differences between diseases, particularly CD, and controls were evident. Longitudinal analyses revealed reduced temporal microbiota stability in IBD, particularly in patients with changes in disease activity. Machine learning separated disease from controls, and active from inactive disease, when consecutive time points were modelled. Geographic location accounted for most of the microbiota variance, second to the presence or absence of CD, followed by history of surgical resection, alcohol consumption and UC diagnosis, medications and diet with most (90.3%) of the compositional variance stochastic or unexplained. CONCLUSION The popular concept of precision medicine and rational design of any therapeutic manipulation of the microbiota will have to contend not only with the heterogeneity of the host response, but also with widely differing lifestyles and with much variance still unaccounted for.
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Affiliation(s)
- Adam G Clooney
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Julia Eckenberger
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Emilio Laserna-Mendieta
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Kathryn A Sexton
- The University of Manitoba Inflammatory Bowel Disease Clinical and Research Centre, Winnipeg, Manitoba, Canada
| | - Matthew T Bernstein
- The University of Manitoba Inflammatory Bowel Disease Clinical and Research Centre, Winnipeg, Manitoba, Canada
| | - Kathy Vagianos
- The University of Manitoba Inflammatory Bowel Disease Clinical and Research Centre, Winnipeg, Manitoba, Canada
| | - Michael Sargent
- The University of Manitoba Inflammatory Bowel Disease Clinical and Research Centre, Winnipeg, Manitoba, Canada
- Section of Gastroenterology, Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Feargal J Ryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Carthage Moran
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Medicine, University College, Cork, Ireland
| | - Donal Sheehan
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Medicine, University College, Cork, Ireland
| | - Roy D Sleator
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Biological Sciences, Cork Institute of Technology, Cork, Ireland
| | - Laura E Targownik
- The University of Manitoba Inflammatory Bowel Disease Clinical and Research Centre, Winnipeg, Manitoba, Canada
- Section of Gastroenterology, Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Charles N Bernstein
- The University of Manitoba Inflammatory Bowel Disease Clinical and Research Centre, Winnipeg, Manitoba, Canada
- Section of Gastroenterology, Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Fergus Shanahan
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Medicine, University College, Cork, Ireland
| | - Marcus J Claesson
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
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27
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Moore H, Wechsler J, Frost C, Whiteside E, Baldassano R, Markowitz J, Muir AB. Comorbid Diagnosis of Eosinophilic Esophagitis and Inflammatory Bowel Disease in the Pediatric Population. J Pediatr Gastroenterol Nutr 2021; 72:398-403. [PMID: 33230079 PMCID: PMC9272133 DOI: 10.1097/mpg.0000000000003002] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND AIMS The incidence and prevalence of eosinophilic esophagitis (EoE) and inflammatory bowel disease (IBD) are rising with similar patterns. Co-occurrence of both diseases in the same patient has been increasingly reported. We sought to examine the pediatric population with both EoE and IBD to better understand the epidemiology and clinical implications of this overlap. METHODS We conducted a retrospective case-control study at 2 tertiary care children's hospitals. Subjects with both EoE and IBD were identified and compared with randomly selected controls with EoE and IBD alone in terms of: demographics, atopic conditions, IBD classification, location and phenotype of Crohn disease (CD), IBD medications, endoscopic findings, and histopathology. Descriptive statistics summarized the data. RESULTS Sixty-seven subjects with dual-diagnosis were identified across both institutions. The prevalence of IBD in the EoE population was 2.2% and EoE in IBD was 1.5%. Subjects with both diseases were more likely to have IgE-mediated food allergy compared with IBD alone (36% vs 7%, P < 0.001). Subjects with CD-EoE were less likely to have perianal disease than CD alone (2% vs 20%, P = 0.004). There was no difference in fibrostenotic EoE between the dual-diagnosis group and EoE alone. Treatment with a TNF-alpha inhibitor (anti-TNF) for management of preexisting IBD was protective against development of EoE with a relative risk of 0.314 [95% confidence interval [CI] 0.159-0.619]. CONCLUSIONS This is a unique population in whom the underlying pathway leading to dual-diagnosis is unclear. Concomitant atopic conditions, especially IgE-mediated food allergy, and medication exposures, particularly anti-TNFs, may help predict likelihood of developing dual-diagnosis.
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Affiliation(s)
- Hillary Moore
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Joshua Wechsler
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Carrie Frost
- Division of Pediatric Research, Greenville Hospital System Children’s Hospital, Greenville, SC 29605, USA
| | - Elizabeth Whiteside
- Department of Pediatrics, University of South Carolina School of Medicine-Greenville, Greenville, SC 29605, USA
| | - Robert Baldassano
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Jonathan Markowitz
- Department of Pediatrics, University of South Carolina School of Medicine-Greenville, Greenville, SC 29605, USA
- Division of Gastroenterology and Nutrition, Greenville Hospital System Children’s Hospital, Greenville, SC 29605, USA
| | - Amanda B. Muir
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
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He X, Liu J, Long G, Xia XH, Liu M. 2,3,5,4'-Tetrahydroxystilbene-2-O-β-D-glucoside, a major bioactive component from Polygoni multiflori Radix (Heshouwu) suppresses DSS induced acute colitis in BALb/c mice by modulating gut microbiota. Biomed Pharmacother 2021; 137:111420. [PMID: 33761623 DOI: 10.1016/j.biopha.2021.111420] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 02/03/2021] [Accepted: 02/17/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Inflammatory bowel disease (IBD) includes ulcerative colitis (UC) and Crohn's disease (CD), which is a common idiopathic digestive disease without a specific cure or treatment for improvement. Because Polygoni multiflori Radix has a traditional medicinal use to treat intestinal diseases, and the water extract of this herbal medicine had a positive influence on dextran sulfate sodium (DSS) induced UC model in our study. Meanwhile 2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside (TSG) as the major component of the water extract of Polygoni multiflori Radix with yield of more than 10% exhibited the remarkable anti-inflammatory activity in vivo and in vitro, we predicted that TSG may contribute to benefit intestinal tract presented by the water extract of Polygoni multiflori Radix. Therefore, the present study aims to explore the pharmacological effect of this compound on UC model and its possible mechanism to regulate intestinal function through gut microbiota. METHODS Ulcerative colitis model was established in BALb/c mice by continuously administrating 3% (w/v) DSS aqueous solution for one week. The disease activity index (DAI), colon length, histopathological examination by H&E and the levels of tight junction proteins (TJP) by immunofluorescence staining were performed in ulcerative colitis model following the protocol. Furthermore, the levels of main inflammatory factors like TNF-α, IL-β, IL-6, and IL-10 were analyzed by the ELIZA kits for the further confirmation of anti-inflammatory activity of TSG on ulcerative colitis model. Finally, 16S rDNA sequencing technology was conducted to explore the composition and relative abundance of gut microbiota of different treatment groups. RESULTS TSG treatments effectively increased body weight about 5% of those in DSS group (p < 0.001) as well remarkably reduced the DAI scores to the 50% of those in DSS group (p < 0.001) in the UC model. TSG treatments of either 25 mg/kg (TSG-25) or 100 mg/kg (TSG-100) dosage restored epithelial barrier structure and exhibited obviously intact colon histology with reduced signs of inflammatory cells infiltration, preserved epithelia barrier, restored crypt structure, and increased numbers of goblet cells. TSG treatments could markedly lessen the histopathologic score two or three times than those in DSS group (p < 0.001). Especially for TSG-100 treatment, the fluorescence intensity of ZO-1 and Occludin were nearly back to 80% of those in normal group, and were 1.5 times more than those in the DSS group (p < 0.001). Additionally, direct evidence pointed to TSG as a therapeutically active molecule in the prevention and treatment of UC by significantly reducing the production of these pro-inflammatory cytokines like TNF-α, IL-1β, and IL-6 (p < 0.05-0.001) and increasing the levels of anti-inflammatory cytokine IL-10 (p < 0.05-0.001). Finally, it was found TSG treatments significantly raised the relative abundances of Firmicutes and Bacteroidetes with a dose-dependently and improved the homeostasis of the gut microbiota composition which disrupted by DSS through increasing genus level Lachnospiraceae_NK4A136 and decreasing genus level of Helicobacter, Bacteroides, Parabacteroides. CONCLUSION The present results suggested that TSG treatments had a desirable pharmacological effect on acute colitis induced by DSS in the mice as well showed the possible mechanism relate to improve the intestinal function through balancing the gut microbiota of intestinal flora.
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Affiliation(s)
- Xueling He
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 232 East Waihuan Rd, High Education Mega Center, Panyu District, Guangzhou, Guangdong Province 510006, PR China.
| | - Jiayan Liu
- The First Affiliated Hospital of Guangzhou Medical University, No. 151 West Yanjiang Road, Yuexiu District, Guangzhou, Guangdong Province 510120, PR China.
| | - Guohao Long
- The First Affiliated Hospital of Guangzhou Medical University, No. 151 West Yanjiang Road, Yuexiu District, Guangzhou, Guangdong Province 510120, PR China.
| | - Xin-Hua Xia
- The First Affiliated Hospital of Guangzhou Medical University, No. 151 West Yanjiang Road, Yuexiu District, Guangzhou, Guangdong Province 510120, PR China.
| | - Mei Liu
- School of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, No. 501 Zhongkai Rd, Haizhu District, Guangzhou, Guangdong Province 510225, PR China.
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Liu A, Lv H, Wang H, Yang H, Li Y, Qian J. Aging Increases the Severity of Colitis and the Related Changes to the Gut Barrier and Gut Microbiota in Humans and Mice. J Gerontol A Biol Sci Med Sci 2021; 75:1284-1292. [PMID: 32048723 DOI: 10.1093/gerona/glz263] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Indexed: 12/13/2022] Open
Abstract
This study aims to compare intestinal mucosal barrier function in older and young ulcerative colitis (UC) patients and the healthy population, and to explore the possible mechanisms through which aging increases the severity of colitis in mice. The old healthy group showed discontinued tight junction (TJ) strand. The E-cadherin and occludin protein expressions in the colonic tissue of the old healthy subjects were lower than those in the younger healthy people. The protein expressions of E-cadherin and occludin were lower in the old UC patients than in the younger UC patients. In mice, disease activity indexes induced by inflammatory stimulus differed as a function of age. Weight loss level, histological scores, and expression of proinflammatory factors were higher in the dextran sulfate sodium (DSS)-induced group of aged mice than in the young DSS-induced mice. Compared with the results observed in the young DSS-induced mice, the protein expressions of E-cadherin and occludin in the aged DSS-induced mice were lower. Furthermore, significant differences were observed in the composition of the gut microbiota between the young and aged mice. In the aged mice, the fraction of beneficial bacteria (Lactobacillus) was lower before the DSS treatment, while the fraction of the harmful bacteria (Turicibacter, Parasutterella) was higher than that observed in the young mice. After the DSS treatment in the aged mice, the fraction of beneficial bacteria (Odoribacter and Alistipes) was lower, while the fraction of harmful bacteria (Turicibacter) was higher than in the young mice. We demonstrate that the aging of the human colon is characterized by an impairment of the intestinal barrier. Aging leads to more severe disease following DSS challenge. Age-related deterioration of gastrointestinal barrier function and gut microbial dysbiosis may be involved in the pathogenesis of colitis in the aged mice.
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Affiliation(s)
- Ailing Liu
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hong Lv
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongying Wang
- State Key Laboratory of Molecular Oncology, Peking Union Medical College, Beijing, China
| | - Hong Yang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yue Li
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiaming Qian
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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30
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Li X, Zhang C, Hui H, Tan Z. Effect of Gegenqinlian decoction on intestinal mucosal flora in mice with diarrhea induced by high temperature and humidity treatment. 3 Biotech 2021; 11:83. [PMID: 33505838 PMCID: PMC7815854 DOI: 10.1007/s13205-020-02628-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 12/28/2020] [Indexed: 12/19/2022] Open
Abstract
The objective of this study is to investigate the regulation effects of the active ingredients in Gegenqinlian Decoction (GD) on the intestinal mucosal flora of mice with diarrhea induced by high temperature and humidity based on systems pharmacology approach. Fifteen mice were randomly assigned to three equal groups of five mice, namely control (ctcm) group, model (ctmm) group and treatment (cttm) group. Mice in the cttm group were given 20 mL/kg of GD and sterile water was used as a placebo control twice a day for four consecutive days. We used the third-generation molecular high-throughput sequencing technology to measure the intestinal mucosal flora changes in mice. Combined with network pharmacology to predict the medicinal substances and action targets of GD against diarrhea. Results showed that Operational Taxonomic Unit (OTU) number and Alpha diversity in the intestinal mucosal flora of cttm group recovered and higher than that of the ctcm group. There were differences in the community structure between the ctmm and cttm groups in the Principal Coordinates Analysis (PCoA). The relative abundance results indicated dominant bacteria species (such as Lactobacillus crispatus, Muribaculum intestinal, Neisseria mucosa) in the intestinal mucosa of the three groups. Moreover, we screened out 146 active ingredients in GD corresponding to 252 component targets, and 328 disease targets in diarrhea to obtain 31 drug-disease common targets. Protein-protein interaction (PPI) networks mainly involved the core proteins such as Tumor necrosis factor (TNF) and Interleukin-6 (IL-6). Enrichment analyses showed that GD played a role in the treatment of diarrhea by regulating the hypoxia inducible factor-1 (HIF-1), vascular endothelial growth factor (VEGF) and adipocytokine signaling pathways and so on. In brief, the active ingredients of GD could intervene from oxidative stress and inflammatory response through multiple targets and multiple channels to adjust the balance of intestinal mucosa flora, thereby playing a role in the treatment of diarrhea. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-020-02628-0.
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Affiliation(s)
- Xiaoya Li
- Hunan University of Chinese Medicine, Xueshi Road 300, Yuelu District, Changsha, 410208 Hunan Province China
| | - Chenyang Zhang
- Hunan University of Chinese Medicine, Xueshi Road 300, Yuelu District, Changsha, 410208 Hunan Province China
| | - Huaying Hui
- Hunan University of Chinese Medicine, Xueshi Road 300, Yuelu District, Changsha, 410208 Hunan Province China
| | - Zhoujin Tan
- Hunan University of Chinese Medicine, Xueshi Road 300, Yuelu District, Changsha, 410208 Hunan Province China
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Ní Dhonnabháín R, Xiao Q, O’Malley D. Aberrant Gut-To-Brain Signaling in Irritable Bowel Syndrome - The Role of Bile Acids. Front Endocrinol (Lausanne) 2021; 12:745190. [PMID: 34917022 PMCID: PMC8669818 DOI: 10.3389/fendo.2021.745190] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 11/04/2021] [Indexed: 12/12/2022] Open
Abstract
Functional bowel disorders such as irritable bowel syndrome (IBS) are common, multifactorial and have a major impact on the quality of life of individuals diagnosed with the condition. Heterogeneity in symptom manifestation, which includes changes in bowel habit and visceral pain sensitivity, are an indication of the complexity of the underlying pathophysiology. It is accepted that dysfunctional gut-brain communication, which incorporates efferent and afferent branches of the peripheral nervous system, circulating endocrine hormones and local paracrine and neurocrine factors, such as host and microbially-derived signaling molecules, underpins symptom manifestation. This review will focus on the potential role of hepatic bile acids in modulating gut-to-brain signaling in IBS patients. Bile acids are amphipathic molecules synthesized in the liver, which facilitate digestion and absorption of dietary lipids. They are also important bioactive signaling molecules however, binding to bile acid receptors which are expressed on many different cell types. Bile acids have potent anti-microbial actions and thereby shape intestinal bacterial profiles. In turn, bacteria with bile salt hydrolase activity initiate the critical first step in transforming primary bile acids into secondary bile acids. Individuals with IBS are reported to have altered microbial profiles and modified bile acid pools. We have assessed the evidence to support a role for bile acids in the pathophysiology underlying the manifestation of IBS symptoms.
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Affiliation(s)
- Róisín Ní Dhonnabháín
- Department of Physiology, College of Medicine and Health, University College Cork, Cork, Ireland
| | - Qiao Xiao
- Department of Physiology, College of Medicine and Health, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Dervla O’Malley
- Department of Physiology, College of Medicine and Health, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- *Correspondence: Dervla O’Malley,
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Metabolic Profiling by UPLC-Orbitrap-MS/MS of Liver from C57BL/6 Mice with DSS-Induced Inflammatory Bowel Disease. Mediators Inflamm 2020; 2020:6020247. [PMID: 33029104 PMCID: PMC7530511 DOI: 10.1155/2020/6020247] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 12/14/2022] Open
Abstract
Liver disorder often occurs in patients with inflammatory bowel disease (IBD); however, the changes in IBD-induced liver disorder at the intrinsic molecular level (chiefly metabolites) and therapeutic targets are still poorly characterized. First, a refined and translationally relevant model of DSS chronic colitis in C57BL/6 mice was established, and cecropin A and antibiotics were used as interventions. We found that the levels of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6 in the liver tissues of mice were highly increased in the context of DSS treatment but were lowered by cecropin A and antibiotics. Subsequently, an untargeted metabolomics analysis was performed by UPLC–Orbitrap–MS/MS to reveal the metabolic profile and attempt to find the potential therapeutic targets of the liver disorders that occur in IBD. Notably, 133 metabolites were identified by an integrated database. Metabolism network and pathway analyses demonstrated that the metabolic disturbance of the liver in IBD mice was mainly enriched in bile acid metabolism, arachidonic acid metabolism, amino acid metabolism, and steroid hormone biosynthesis, while those disturbances were regulated or reversed through cecropin A and antibiotic treatment. Furthermore, the top 20 metabolites, such as glutathione, maltose, arachidonic acid, and thiamine, were screened as biomarkers via one-way analysis of variance (one-way ANOVA, p < 0.05) coupled with variable importance for project values (VIP >1) of orthogonal partial least-squares discriminant analysis (OPLS-DA), which could be upregulated or downregulated with the cecropin A and antibiotics treatment. Spearman correlation analysis showed that the majority of the biomarkers have a significant correlation with cytokines (TNF-α, IL-1β, IL-6, and IL-10), indicating that those biomarkers may act as potential targets to interact directly or indirectly with cecropin A and antibiotics to affect liver inflammation. Collectively, our results extend the understanding of the molecular alteration of liver disorders occurring in IBD and offer an opportunity for discovering potential therapeutic targets in the IBD process.
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Akkol EK, Karpuz B, Sobarzo-Sánchez E, Khan H. A phytopharmacological overview of medicinal plants used for prophylactic and treatment of colitis. Food Chem Toxicol 2020; 144:111628. [PMID: 32738379 DOI: 10.1016/j.fct.2020.111628] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/26/2020] [Accepted: 07/14/2020] [Indexed: 12/26/2022]
Abstract
Inflammatory bowel diseases are chronic diseases that develop on the genetic background. They are characterized by an idiopathic, chronic course and periods of activation and remission. However, genetic and environmental factors are thought to play a role in its pathogenesis. Significant improvements in treatment strategies have been witnessed. Depending on the severity of the disease, mesalamine, immunosuppressants, anti-TNF, anti-integrin, Janus kinase inhibitors, and thiopurines can be used for treatment. However, these treatments have side effects such as headache, dizziness, nausea, loss of appetite, hair loss, gas, vomiting, rash, fever, and decreased white blood cell count. The search for treatment that may be a safer alternative, immunomodulatory, and immunosuppressive therapy has gained importance nowadays. Herbal medicine is preferred to treat a wide range of acute and chronic gastrointestinal diseases, including ulcerative colitis. Preclinical and clinical studies show that plants are promising in terms of their use in treating pathological conditions. The effectiveness of plants in treating ulcerative colitis has been determined. However, more studies are needed to explore the long-term effects of these herbal medicines. The present review presents information on medicinal plants and phytochemicals reported for use or potential of application in ulcerative colitis, a type of inflammatory bowel diseases.
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Affiliation(s)
- Esra Küpeli Akkol
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, Etiler, 06330, Ankara, Turkey.
| | - Büşra Karpuz
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, Etiler, 06330, Ankara, Turkey
| | - Eduardo Sobarzo-Sánchez
- Instituto de Investigación en Salud, Facultad de Ciencias de la Salud, Universidad Central de Chile, 8330507, Santiago, Chile; Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain.
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, 23200, Pakistan.
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Son MJ, Kim MH, Kang M, Kim YE, Jung J, Choi I. Safety and efficacy of an herbal formula, Gwakhyangjeonggi-san on atopic dermatitis with gastrointestinal symptoms: Protocol for a randomized controlled trial. Medicine (Baltimore) 2020; 99:e20675. [PMID: 32664064 PMCID: PMC7360236 DOI: 10.1097/md.0000000000020675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION Gwakhyangjeonggi-san (GJS) is an herbal formula with anti-inflammatory and anti-allergic properties that is broadly used to treat a wide range of diseases including gastrointestinal disorders and allergic diseases. There have been several clinical studies conducted on its effects on atopic dermatitis (AD). So far, no randomized controlled trials have been conducted. Here, we describe the protocol for a randomized controlled study designed to investigate the efficacy and safety of GJS for treating patients with AD that have gastrointestinal symptoms. METHODS AND ANALYSIS A randomized, double-blind, placebo-controlled, parallel-group, clinical trial has been designed to investigate the clinical efficacy and safety of GJS on patients with AD that have gastrointestinal symptoms. A total of 58 participants with AD will be recruited and randomly allocated to the GJS or placebo group in a 1:1 ratio. The participants will be administered GJS or placebo granules 3 times a day for 8 weeks. Data will be collected from the participants at baseline and after 4 and 8 weeks. The primary outcome measure will be the mean change in the SCORing of Atopic Dermatitis (SCORAD) index from baseline to 8 weeks. The secondary outcomes will include the eczema area and severity index (EASI), dermatology life quality index (DLQI), EuroQoL 5 dimensions 5 levels (EQ-5D-5L), and immunological factors. The Korean Gastrointestinal Symptom Rating Scale (KGSRS), Nepean Dyspepsia Index will also be obtained for assessing the gastrointestinal status. DISCUSSION The findings of this study are expected to provide evidence on the safety and effectiveness of GJS and for treating patients with AD that have gastrointestinal symptoms. Additionally, the study will explore the mechanism of GJS action via gut microbiome. This study will provide new perspectives on approaching treatment for AD. ETHICS AND DISSEMINATION The study protocol was approved by the Institutional Review Board of Kyung Hee University Korean Medicine Hospital at Gangdong (KHNMCOH2019-06-002-001). TRIAL REGISTRATION NUMBER This study has been registered at the Korean National Clinical Trial Registry, Clinical Research Information Service (KCT0004299).
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Affiliation(s)
- Mi Ju Son
- Clinical Medicine Division, Korea Institute of Oriental Medicine, Daejeon
| | - Min Hee Kim
- Department of Ophthalmology, Otolaryngology and Dermatology of Korean Medicine, Kyung Hee University Hospital at Gangdong, Seoul
| | - Minseo Kang
- Department of Ophthalmology, Otolaryngology and Dermatology of Korean Medicine, Kyung Hee University Hospital at Gangdong, Seoul
| | - Young-Eun Kim
- Future Medicine Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea
| | - Jeeyoun Jung
- Clinical Medicine Division, Korea Institute of Oriental Medicine, Daejeon
| | - Inhwa Choi
- Department of Ophthalmology, Otolaryngology and Dermatology of Korean Medicine, Kyung Hee University Hospital at Gangdong, Seoul
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Okahara K, Ishikawa D, Nomura K, Ito S, Haga K, Takahashi M, Shibuya T, Osada T, Nagahara A. Matching between Donors and Ulcerative Colitis Patients Is Important for Long-Term Maintenance after Fecal Microbiota Transplantation. J Clin Med 2020; 9:jcm9061650. [PMID: 32486476 PMCID: PMC7355579 DOI: 10.3390/jcm9061650] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 12/11/2022] Open
Abstract
We previously demonstrated that fresh fecal microbiota transplantation (FMT) following triple antibiotic therapy (amoxicillin, fosfomycin, metronidazole (AFM); A-FMT) resulted in effective colonization of Bacteroidetes species, leading to short-term clinical response in ulcerative colitis (UC). Its long-term efficacy and criteria for donor selection are unknown. Here, we analyzed the long-term efficacy of A-FMT compared to AFM monotherapy (mono-AFM). AFM was administered to patients with mild to severe UC for 2 weeks until 2 days before fresh FMT. Clinical response and efficacy maintenance were defined by the decrease and no exacerbation in clinical activity index. The population for intention-to-treat analysis comprised 92 patients (A-FMT, n = 55; mono-AFM, n = 37). Clinical response was observed at 4 weeks post-treatment (A-FMT, 56.3%; mono-AFM, 48.6%). Maintenance rate of responders at 24 months post-treatment was significantly higher with A-FMT than mono-AFM (p = 0.034). Significant differences in maintenance rate according to the age difference between donors and patients were observed. Additionally, sibling FMT had a significantly higher maintenance rate than parent–child FMT. Microbial analysis of patients who achieved long-term maintenance showed that some exhibited similarity to their donors, particularly Bacteroidetes species. Thus, A-FMT exhibited long-term efficacy. Therefore, matching between donors and UC patients may be helpful in effectively planning the FMT regimen.
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Affiliation(s)
| | - Dai Ishikawa
- Correspondence: ; Tel.: +81-(0)3-5802-1060; Fax: +81-(0)3-3813-8862
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Cui M, Zhou R, Wang Y, Zhang M, Liu K, Ma C. Beneficial effects of sulfated polysaccharides from the red seaweed Gelidium pacificum Okamura on mice with antibiotic-associated diarrhea. Food Funct 2020; 11:4625-4637. [PMID: 32400829 DOI: 10.1039/d0fo00598c] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The purpose of this study was to investigate whether Gelidium pacificum Okamura polysaccharides (sulfated polysaccharide, GPOP-1) had beneficial effects on mice with antibiotic-associated diarrhea (AAD). Compared with the natural recovery group, GPOP-1 increased the richness and diversity of the gut microbiome, as well as altered the composition of the gut microbiota. At the genus level, GPOP-1 significantly increased the relative abundance of Bacteroides, Oscillospira, and Bifidobacterium and decreased the relative abundance of Parabacteroides, Sutterella, and AF12. The metabolic pathway differences according to the Kyoto Encyclopedia of Genes and Genomes (KEGG) revealed that the metabolic function of the gut microbiota could be significantly improved by GPOP-1. Furthermore, GPOP-1 downregulated the concentrations of inflammatory cytokines, tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) and interleukin-2 (IL-2), alleviated the pathological features of the cecum, and increased the contents of acetates, propionates, butyrates, and total short-chain fatty acids (SCFAs). Results indicated that GPOP-1 had beneficial effects on mice with AAD by promoting the recovery of the gut microbiota and mucosal barrier function, reversing metabolic disorders, downregulating the levels of inflammatory cytokines and improving the content of SCFAs.
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Affiliation(s)
- Mingxiao Cui
- Department of Biopharmaceutics, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
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Chande N, Costello SP, Limketkai BN, Parker CE, Nguyen TM, Macdonald JK, Feagan BG. Alternative and Complementary Approaches for the Treatment of Inflammatory Bowel Disease: Evidence From Cochrane Reviews. Inflamm Bowel Dis 2020; 26:843-851. [PMID: 31560744 DOI: 10.1093/ibd/izz223] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Indexed: 12/12/2022]
Abstract
The Cochrane IBD Group presented a symposium at Digestive Diseases Week 2018 entitled “Alternative and Complementary Approaches for the Treatment of IBD: Evidence from Cochrane Reviews.” This article summarizes the data presented at this symposium.
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Affiliation(s)
- Nilesh Chande
- Division of Gastroenterology, Department of Medicine, University of Western Ontario, London, Ontario, Canada.,Cochrane IBD Group, University of Western Ontario, London, Ontario, Canada
| | - Samuel P Costello
- Department of Gastroenterology, The Queen Elizabeth Hospital, Adelaide, Australia
| | - Berkeley N Limketkai
- Division of Digestive Diseases, UCLA School of Medicine, Los Angeles, California, USA
| | | | - Tran M Nguyen
- Robarts Clinical Trials Inc. London, Ontario, Canada
| | - John K Macdonald
- Division of Gastroenterology, Department of Medicine, University of Western Ontario, London, Ontario, Canada.,Cochrane IBD Group, University of Western Ontario, London, Ontario, Canada
| | - Brian G Feagan
- Division of Gastroenterology, Department of Medicine, University of Western Ontario, London, Ontario, Canada.,Cochrane IBD Group, University of Western Ontario, London, Ontario, Canada.,Department of Epidemiology and Biostatistics, University of Western Ontario, London, Ontario, Canada
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38
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Quyushengxin Formula Causes Differences in Bacterial and Phage Composition in Ulcerative Colitis Patients. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:5859023. [PMID: 32454865 PMCID: PMC7240791 DOI: 10.1155/2020/5859023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 02/24/2020] [Accepted: 03/13/2020] [Indexed: 12/14/2022]
Abstract
Background Ulcerative colitis (UC) is a chronic inflammatory disease that affects the colon and the rectum. Recently, some studies have shown that microorganisms in the gut play important roles in many chronic diseases such as UC. Methods To study the candidate viruses and bacteria involved in UC and to investigate the therapeutic mechanism of Quyushengxin formula (QYSX) in UC patients, metagenomic sequencing was performed on the feces from healthy donors and UC patients before and after QYSX treatment. Results QYSX improved the symptoms of UC. In all participants, Caudovirales and Herpesvirales were the most dominant viruses. The abundance of Caudovirales in UC patients was significantly higher than that in the normal controls, while QYSX restored Caudovirales abundance. Furthermore, the abundance of crAssphage was enhanced in UC patients compared with the normal control, while the diversity was then decreased after QYSX treatment. However, there was no significant difference (P > 0.05). Additionally, other non-crAssphage bacteriophages including phiST, SP-10, and phi17:2 were higher in UC patients and QYSX decreased these viruses, while the trends of MED4−213, P-HM1, and P−HM2 were adverse. Interestingly, PhiDP23.1 was only found in UC patients before and after QYSX treatment. In addition, Bifidobacterium, Bacteroidetes, Prevotellaceae, Actinobacteria, and Corynebacteriales were the biomarkers in UC patients after QYSX treatment due to their high abundance. GO terms and KEGG analysis showed that the identified gut microbiome was involved in many biological processes and pathways. Conclusions QYSX could regulate disordered gut microbiome and phages, indicating that QYSX has great therapeutic potential for UC.
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Altered Gut Microbiota Is Present in Newly Diagnosed Pediatric Patients With Inflammatory Bowel Disease. J Pediatr Gastroenterol Nutr 2020; 70:497-502. [PMID: 31899727 DOI: 10.1097/mpg.0000000000002611] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS Clinical and experimental data suggest that gut microbiota plays an important role in the pathogenesis of inflammatory bowel disease (IBD). The aim of this study was to determine intestinal microbiota in newly diagnosed patients with IBD and to compare it with patients' healthy siblings who share same genetic and environmental background and to healthy unrelated controls. METHODS Molecular approach targeting 16S ribosomal RNA was employed for analyzing the gut microbiota of participants' stool samples. Terminal restriction fragment length polymorphphism analysis was performed. RESULTS Newly diagnosed pediatric patients with IBD (n = 19, 68.4% Crohn disease [CD], mean age 14.8 ± 0.65 years), their unaffected healthy siblings (n = 20, mean age 12.8 ± 0.85 years), and unrelated healthy controls (n = 19, mean age 10.7 ± 0.8 years) were included. Microbial diversity differed significantly between IBD patients, healthy siblings, and healthy controls (P = 0.018 for MspI digestion, P = 0.013 for HhaI digestion). No significant difference in microbial diversity was found between healthy siblings and healthy controls. In patients reduced presence of genus Eubacterium, Lactobacillus, Enterobacter and Clostridium, and increased presence of genus Streptococcus, Prevotella and Escherichia, compared with healthy siblings and healthy controls, was found. CONCLUSION Newly diagnosed pediatric patients with IBD show significantly less diverse microbiota and microbial composition compared with healthy siblings and healthy controls.
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40
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Chun JL, Ji SY, Lee SD, Lee YK, Kim B, Kim KH. Difference of gut microbiota composition based on the body condition scores in dogs. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2020; 62:239-246. [PMID: 32292931 PMCID: PMC7142278 DOI: 10.5187/jast.2020.62.2.239] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/11/2020] [Accepted: 02/20/2020] [Indexed: 01/16/2023]
Abstract
Microorganism residing in the gut has been known to have important roles in the animal body. Microbes and host microenvironment are highly related with host's health including energy metabolism and immune system. Moreover, it reported that gut microbiome is correlated with diseases like obesity in human and dogs. There have been many studies to identify and characterize microbes and their genes in human body. However, there was little information of microbiome in companion animals. Here, we investigated microbiota communities in feaces from twenty - four Beagles (aged 2 years old) and analyzed the taxonomy profile using metagenomics to study the difference among gut microbiome based on body condition score (BCS). gDNA was isolated from feaces, sequenced and clustered. Taxonomy profiling was performed based on the NCBI database. BCS was evaluated once a week according to the description provided by World Small Animal Veterinary Association. Firmicutes phylum was the most abundant followed by Bacteroidetes, Fusobacteria, Proteobacteria and Actinobacteria. That main microbiota in gut were differently distributed based on the BCS. Fusobacteria has been known to be associated with colon cancer in human. Interestingly, Fusobacteria was in the third level from the top in healthy dog's gut microbiome. In addition, Fusobacteria was especially higher in overweight dogs which had 6 scales of BCS. Species Fusobacterium perfoetens was also more abundant when dogs were in BCS 6. It implied that F. perfoetens would be positively related with overweight in dogs. These finding would contribute to further studies of gut microbiome and their functions to improve dog's diets and health condition.
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Affiliation(s)
- Ju Lan Chun
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Sang Yun Ji
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Sung Dae Lee
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Yoo Kyung Lee
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Byeonghyeon Kim
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Ki Hyun Kim
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
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Li X, Wu Y, Xu Z, Chen J, Li Y, Xing H, Zhang X, Yuan J. Effects of Hetiao Jianpi Decoction on Intestinal Injury and Repair in Rats with Antibiotic-Associated Diarrhea. Med Sci Monit 2020; 26:e921745. [PMID: 32062668 PMCID: PMC7043351 DOI: 10.12659/msm.921745] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Through observing the changes of indexes of the intestinal mucosal barrier and intestinal flora in rats, we explored the mechanism by which Hetiao Jianpi Decoction (HTJPD) treats antibiotic-associated diarrhea (AAD) by repairing intestinal mucosal injury and regulating intestinal flora. MATERIAL AND METHODS Samples of colon tissues were collected for HE staining. Enzyme-linked immunosorbent assay (ELISA) was used to assess levels of diamine oxidase (DAO) and D-lactic acid in rat plasma and the expression of secretory immunoglobulin A (SIgA) in colon tissue. We assessed the abundance of intestinal contents by high-throughput sequencing of the 16S rRNA gene. RESULTS Compared with the Model group, the muscle layer and intestinal mucosal edema were improved, and the continuity was restored; the levels of DAO and D-lactic acid in plasma decreased, and the SIgA level were increased in the HTJPD group. The structure of the intestinal flora changed, as indicated by increased levels of certain beneficial bacteria (Verrucomicrobia, Actinobacteria, CF231, and Akkermansia), decreased levels of pathogenic bacteria (Spirochaetes and Treponema), and increased species diversity. CONCLUSIONS By improving the permeability and immune function of the intestinal mucosa, Hetiao Jianpi decoction prevented the occurrence of AAD by repairing the intestinal mucosal damage and regulating the structure and diversity of intestinal flora.
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Affiliation(s)
- Xiaoya Li
- College of Basic Medical Science, Yunnan University of Chinese Medicine, Kunming, Yunnan, China (mainland)
| | - Yueying Wu
- College of First Clinical Medical Science, Yunnan University of Chinese Medicine, Kunming, Yunnan, China (mainland)
| | - Zhenyuan Xu
- College of Basic Medical Science, Yunnan University of Chinese Medicine, Kunming, Yunnan, China (mainland)
| | - Jing Chen
- College of Basic Medical Science, Yunnan University of Chinese Medicine, Kunming, Yunnan, China (mainland).,Provincial Innovation Team of Yunnan University of Chinese Medicine for Traditional Chinese Medicine to Regulate Human Microecology, Kunming, Yunnan, China (mainland)
| | - Yuqing Li
- College of Basic Medical Science, Yunnan University of Chinese Medicine, Kunming, Yunnan, China (mainland).,Provincial Innovation Team of Yunnan University of Chinese Medicine for Traditional Chinese Medicine to Regulate Human Microecology, Kunming, Yunnan, China (mainland)
| | - Haijing Xing
- College of Basic Medical Science, Yunnan University of Chinese Medicine, Kunming, Yunnan, China (mainland).,Provincial Innovation Team of Yunnan University of Chinese Medicine for Traditional Chinese Medicine to Regulate Human Microecology, Kunming, Yunnan, China (mainland)
| | - Xiaomei Zhang
- College of Basic Medical Science, Yunnan University of Chinese Medicine, Kunming, Yunnan, China (mainland).,Provincial Innovation Team of Yunnan University of Chinese Medicine for Traditional Chinese Medicine to Regulate Human Microecology, Kunming, Yunnan, China (mainland)
| | - Jiali Yuan
- Provincial Innovation Team of Yunnan University of Chinese Medicine for Traditional Chinese Medicine to Regulate Human Microecology, Kunming, Yunnan, China (mainland)
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Jung KJ, Lee GW, Park CH, Lee TJ, Kim JY, Sung EG, Kim SY, Jang BI, Song IH. Mesenchymal Stem Cells Decrease Oxidative Stress in the Bowels of Interleukin-10 Knockout Mice. Gut Liver 2020; 14:100-107. [PMID: 31158947 PMCID: PMC6974321 DOI: 10.5009/gnl18438] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 03/20/2019] [Accepted: 03/29/2019] [Indexed: 02/05/2023] Open
Abstract
Background/Aims: Inflammatory bowel disease (IBD) is an autoimmune disease characterized by chronic inflammation mainly in the large intestine. The interleukin-10 knockout (IL-10 KO) mouse is a well-known animal model of IBD that develops spontaneous intestinal inflammation resembling Crohn's disease. Oxidative stress is considered to be the leading cause of cell and tissue damage. Reactive oxygen species (ROS) can cause direct cell injury and/or indirect cell injury by inducing the secretion of cytokines from damaged cells. This study evaluated the effects of mesenchymal stem cell (MSC) on the progression of IBD. Methods: In this study, human bone marrow-derived MSCs were injected into IL-10 KO mice (MSC). Oxidative stress and inflammation levels were evaluated in the large intestine and compared with those in control IL-10 KO mice (CON) and normal wild-type control mice (Wild). Results: The levels of ROS (superoxide and hydrogen peroxidase) and a secondary end-product of lipid peroxidation (malondialdehyde) were considerably higher in the CON, while superoxide dismutase and catalase levels were lower in the MSC. Inflammation-related marker (interferon-γ, tumor necrosis factor-α, IL-4, and CD8) expression and inflammatory histological changes were much less pronounced in MSC than in CON. Conclusions: MSCs affect the redox balance, leading to the suppression of IBD.
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Affiliation(s)
- Kyong Jin Jung
- Department of Anatomy, Yeungnam University College of Medicine, Daegu,
Korea
- Smart-Aging Convergence Research Center, Yeungnam University College of Medicine, Daegu,
Korea
| | - Gun Woo Lee
- Department of Orthopedic Surgery, Yeungnam University College of Medicine, Daegu,
Korea
| | - Chul Hyun Park
- Department of Orthopedic Surgery, Yeungnam University College of Medicine, Daegu,
Korea
| | - Tae Jin Lee
- Department of Anatomy, Yeungnam University College of Medicine, Daegu,
Korea
| | - Joo Young Kim
- Department of Anatomy, Yeungnam University College of Medicine, Daegu,
Korea
| | - Eon Gi Sung
- Department of Anatomy, Yeungnam University College of Medicine, Daegu,
Korea
| | - Seong Yong Kim
- Department of Biochemistry and Molecular Medicine, Yeungnam University College of Medicine, Daegu,
Korea
| | - Byung Ik Jang
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu,
Korea
| | - In Hwan Song
- Department of Anatomy, Yeungnam University College of Medicine, Daegu,
Korea
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43
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Hossian AKMN, Mackenzie GG, Mattheolabakis G. miRNAs in gastrointestinal diseases: can we effectively deliver RNA-based therapeutics orally? Nanomedicine (Lond) 2019; 14:2873-2889. [PMID: 31735124 DOI: 10.2217/nnm-2019-0180] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Nucleic acid-based therapeutics are evaluated for their potential of treating a plethora of diseases, including cancer and inflammation. Short nucleic acids, such as miRNAs, have emerged as versatile regulators for gene expression and are studied for therapeutic purposes. However, their inherent instability in vivo following enteral and parenteral administration has prompted the development of novel methodologies for their delivery. Although research on the oral delivery of siRNAs is progressing, with the development and utilization of promising carrier-based methodologies for the treatment of a plethora of gastrointestinal diseases, research on miRNA-based oral therapeutics is lagging behind. In this review, we present the potential role of miRNAs in diseases of the GI tract, and analyze current research and the cardinal features of the novel carrier systems used for nucleic acid oral delivery that can be expanded for oral miRNA administration.
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Affiliation(s)
- A K M Nawshad Hossian
- School of Basic Pharmaceutical & Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, LA 71201, USA
| | | | - George Mattheolabakis
- School of Basic Pharmaceutical & Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, LA 71201, USA
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44
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An Experimental Approach to Rigorously Assess Paneth Cell α-Defensin (Defa) mRNA Expression in C57BL/6 Mice. Sci Rep 2019; 9:13115. [PMID: 31511628 PMCID: PMC6739474 DOI: 10.1038/s41598-019-49471-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 08/24/2019] [Indexed: 12/17/2022] Open
Abstract
Abundant evidence from many laboratories supports the premise that α-defensin peptides secreted from Paneth cells are key mediators of host-microbe interactions in the small intestine that contribute to host defense and homeostasis. α-defensins are among the most highly expressed antimicrobial peptides at this mucosal surface in many mammals, including humans and mice; however, there is striking variation among species in the number and primary structure of α-defensin paralogs. Studies of these biomolecules in vivo are further complicated by striking variations between laboratory mouse strains. Herein, we report an experimental approach to determine with precision and specificity expression levels of α-defensin (Defa) mRNA in the small intestine of C57BL/6 mice through an optimized set of oligonucleotide primers for qRT-PCR assays and cloned cDNA plasmids corresponding to the Defa paralogs. This approach demonstrated marked differences in α-defensin expression in C57BL/6 mice with respect to proximal/distal anatomical location and developmental stage, which have not been described previously. These data underscore the importance of careful attention to method (primer choice, proximal vs. distal location, and developmental stage) in analysis of antimicrobial peptide expression and their impact.
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Tan L, Zhao S, Zhu W, Wu L, Li J, Shen M, Lei L, Chen X, Peng C. The Akkermansia muciniphila is a gut microbiota signature in psoriasis. Exp Dermatol 2019; 27:144-149. [PMID: 29130553 DOI: 10.1111/exd.13463] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2017] [Indexed: 12/12/2022]
Abstract
Psoriasis is an immune-mediated chronic inflammatory skin disease. Although its pathogenesis is not fully understood, Th17 cells and the cytokines they produce, such as IL-17, IL-22 and IL-23, play critical roles in the pathogenesis of psoriasis. Evidence has demonstrated that psoriasis has some common features, including immune responses (due to Th17 cells) and inflammatory cytokine profiles, with systematic diseases including inflammatory bowel diseases (IBDs) and obesity. Recently, studies have demonstrated that the gut microbiota plays a crucial role in host homoeostasis and immune response, particular in Th17 cells, but the role of the gut microbiota in psoriasis remains unclear. To study the relationship between gut microbiota and psoriasis, we analysed microbiota profiles in psoriasis using a 16S rDNA sequencing platform, and we found that the abundance of Akkermansia muciniphila was significantly reduced in patients with psoriasis. A. muciniphila is believed to have an important function in the pathogenesis of IBD and obesity; therefore, A. muciniphila, which is an indicator of health status, may be a key node for psoriasis as well as IBD and obesity. Taken together, our study identified that gut microbiota signature and function are significantly altered in the gut of patients with psoriasis, which provides a novel angle to understanding the pathogenesis of psoriasis.
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Affiliation(s)
- LiRong Tan
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shuang Zhao
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wu Zhu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lisha Wu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jie Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - MinXue Shen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li Lei
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Cong Peng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Microbiome of the Skin and Gut in Atopic Dermatitis (AD): Understanding the Pathophysiology and Finding Novel Management Strategies. J Clin Med 2019; 8:jcm8040444. [PMID: 30987008 PMCID: PMC6518061 DOI: 10.3390/jcm8040444] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/25/2019] [Accepted: 03/28/2019] [Indexed: 12/14/2022] Open
Abstract
Atopic dermatitis (AD) is a long-standing inflammatory skin disease that is highly prevalent worldwide. Multiple factors contribute to AD, with genetics as well as the environment affecting disease development. Although AD shows signs of skin barrier defect and immunological deviation, the mechanism underlying AD is not well understood, and AD treatment is often very difficult. There is substantial data that AD patients have a disturbed microbial composition and lack microbial diversity in their skin and gut compared to controls, which contributes to disease onset and atopic march. It is not clear whether microbial change in AD is an outcome of barrier defect or the cause of barrier dysfunction and inflammation. However, a cross-talk between commensals and the immune system is now noticed, and their alteration is believed to affect the maturation of innate and adaptive immunity during early life. The novel concept of modifying skin and gut microbiome by applying moisturizers that contain nonpathogenic biomass or probiotic supplementation during early years may be a preventive and therapeutic option in high risk groups, but currently lacks evidence. This review discusses the nature of the skin and gut flora in AD, possible mechanisms of skin-gut interaction, and the therapeutic implications of microbiome correction in AD.
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O'Driscoll CM, Bernkop-Schnürch A, Friedl JD, Préat V, Jannin V. Oral delivery of non-viral nucleic acid-based therapeutics - do we have the guts for this? Eur J Pharm Sci 2019; 133:190-204. [PMID: 30946964 DOI: 10.1016/j.ejps.2019.03.027] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/25/2019] [Accepted: 03/28/2019] [Indexed: 12/22/2022]
Abstract
Gene therapy with RNA and pDNA-based drugs is limited by poor enzymatic stability and poor cellular permeation. The delivery of nucleic acids, in particular by the oral route, remains a major hurdle. This review will focus on the barriers to the oral delivery of nucleic acids and the strategies, in particular formulation strategies, which have been developed to overcome these barriers. Due to their very low oral bioavailability, the most obvious and most investigated biomedical applications for their oral delivery are related to the local treatment of inflammatory bowel diseases and colorectal cancers. Preclinical data but not yet clinical studies support the potential use of the oral route for the local delivery of formulated nucleic acid-based drugs.
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Affiliation(s)
| | - Andreas Bernkop-Schnürch
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria.
| | - Julian D Friedl
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Véronique Préat
- Universite catholique de Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Avenue Mounier, 73 bte B1.73.12, 1200 Brussels, Belgium.
| | - Vincent Jannin
- Gattefossé SAS, 36 chemin de Genas, 69804 Saint-Priest cedex, France.
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48
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Clarke G, Sandhu KV, Griffin BT, Dinan TG, Cryan JF, Hyland NP. Gut Reactions: Breaking Down Xenobiotic–Microbiome Interactions. Pharmacol Rev 2019; 71:198-224. [DOI: 10.1124/pr.118.015768] [Citation(s) in RCA: 146] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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49
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Aniwan S, Harmsen WS, Tremaine WJ, Loftus EV. Incidence of inflammatory bowel disease by race and ethnicity in a population-based inception cohort from 1970 through 2010. Therap Adv Gastroenterol 2019; 12:1756284819827692. [PMID: 30792818 PMCID: PMC6376543 DOI: 10.1177/1756284819827692] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 01/04/2019] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Although inflammatory bowel disease (IBD) has been more predominant in white populations, an increasing incidence of IBD in nonwhites has been reported. We sought to evaluate the incidence rates and temporal trends of IBD by race and ethnicity. METHODS The resources of the Rochester Epidemiologic Project were used to identify 814 county residents newly diagnosed with IBD from 1970 through 2010. Race was categorized into whites and nonwhites. Ethnicity was categorized into Hispanic and non-Hispanic. Incidence rates were estimated and adjusted for age and sex to the 2010 United States (US) population. Trends in incidence rates were evaluated by Poisson regression. RESULTS The adjusted annual incidence rate of IBD for whites was 21.6 cases per 100,000 person-years [95% confidence interval (CI), 20.0-23.1] and for nonwhites it was 13 per 100,000 (95% CI, 8.3-17.5). The incidence rates for whites and nonwhites increased by 39% and 134%, respectively, from 1970 through 2010. The adjusted annual incidence rate of IBD for Hispanics was 15 cases per 100,000 person-years (95% CI, 6.3-23.6) and for non-Hispanics was 20 per 100,000 (95% CI, 18.5-21.6). The incidence rate for Hispanics decreased by 56%, while the rate for non-Hispanics increased by 33%, from 1985 through 2010. In a Poisson regression, white race (p < 0.0001), a later year of diagnosis (p < 0.001), male sex (p < 0.001) and younger age (p = 0.009) were significantly associated with a higher incidence rate of IBD. CONCLUSIONS There were significant racial and ethnic differences in the incidence and temporal trends of IBD over the last four decades in this US population-based cohort.
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Affiliation(s)
- Satimai Aniwan
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA,Division of Gastroenterology, Chulalongkorn University, King Chulalongkorn Memorial, Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - W. Scott Harmsen
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota, USA
| | - William J. Tremaine
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
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50
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Zang J, Ma S, Wang C, Guo G, Zhou L, Tian X, Lv M, Zhang J, Han B. Screening for active constituents in Turkish galls against ulcerative colitis by mass spectrometry guided preparative chromatography strategy: in silico, in vitro and in vivo study. Food Funct 2019; 9:5124-5138. [PMID: 30256363 DOI: 10.1039/c8fo01439f] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Turkish galls have been reported to exhibit remedial effects in ulcerative colitis (UC). However, the active constituents of Turkish galls for the treatment of UC remain unclear. The objective of this study was to screen for anti-inflammatory active constituents and clarify their associated molecular mechanisms. Therefore, systems pharmacology was developed to predict the relationship between constituents and the corresponding targets as well as pathways. In addition, mass spectrometry-guided preparative chromatography technique was used for preparing constituents to evaluate the anti-inflammatory activities and the therapeutic efficacy against UC. In silico, active constituents exhibited a remedial effect on UC possibly by regulating multiple pathways and attacking multiple targets, of which those involved mainly in the NF-κB pathway were selected for verification. In vitro, 5 categories of constituents were screened as active constituents by comparing the cytotoxicity and detecting the level of the pro-inflammatory factors of 9 category constituents. In vivo, dextran sulfate sodium (DSS)-induced UC was significantly ameliorated in active constituents-fed mice. The results indicated that the active fraction comprising methyl gallate, digallic acid, di-O-galloyl-β-d-glucose, and tri-O-galloyl-β-d-glucose primarily contributed to the treatment of UC. Moreover, active fraction could also inhibit the phosphorylation level of IKKβ, thus inhibiting the downstream NF-κB signaling pathway. The approach developed in this study not only clarifies the anti-inflammation effect of Turkish galls but also provides a beneficial reference for the discovery of the base material and functional mechanism of this herbal medicine.
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Affiliation(s)
- Jie Zang
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan/School of Pharmacy/Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education/School of Medicine, Shihezi University, Xinjiang Shihezi 832003, P. R. China.
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