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Zhai Z, Zhang Y, Liang X, Li J, Chen Z, Zhang J, Li W, Wang T, He Q, Li F, Meng Q, Cao J, Su Z, Chang Y, Chen X, Hong A. Acesulfame potassium triggers inflammatory bowel disease via the inhibition of focal adhesion pathway. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134901. [PMID: 38909462 DOI: 10.1016/j.jhazmat.2024.134901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 06/04/2024] [Accepted: 06/12/2024] [Indexed: 06/25/2024]
Abstract
Acesulfame potassium (ACK) was generally regarded as innocuous and extensively ingested. Nevertheless, ACK has recently gained attention as a burgeoning pollutant that has the potential to induce a range of health hazards, particularly to the digestive system. Herein, we uncover that ACK initiates inflammatory bowel disease (IBD) in mice and zebrafish, as indicated by the aggregation of macrophages in the intestine and the inhibition of intestinal mucus secretion. Transcriptome analysis of mice and zebrafish guts revealed that exposure to ACK typically impacts the cell cycle, focal adhesion, and PI3K-Akt signaling pathways. Using pharmacological approaches, we demonstrate that the PI3K-Akt signaling pathway and the generation of reactive oxygen species (ROS) triggered by cell division are not significant factors in the initiation of IBD caused by ACK. Remarkably, inhibition of the focal adhesion pathway is responsible for the IBD onset induced by ACK. Our results indicate the detrimental impacts and possible underlying mechanisms of ACK on the gastrointestinal system and provide insights for making informed choices about everyday dietary habits.
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Affiliation(s)
- Zhaodong Zhai
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Yibo Zhang
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China.
| | - Xujing Liang
- Department of Infectious Disease, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Jingsheng Li
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Zhiqi Chen
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Jianbin Zhang
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - WeiCai Li
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Teng Wang
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Qianyi He
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Fu Li
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Qilin Meng
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Jieqiong Cao
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China; Department of Radiology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Zijian Su
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Yiming Chang
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China; Department of Radiology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Xiaojia Chen
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China; MOE Key Laboratory of Tumor Molecular Biology, Jinan University, Guangzhou, China.
| | - An Hong
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China.
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Balde A, Ramya CS, Nazeer RA. A review on current advancement in zebrafish models to study chronic inflammatory diseases and their therapeutic targets. Heliyon 2024; 10:e31862. [PMID: 38867970 PMCID: PMC11167310 DOI: 10.1016/j.heliyon.2024.e31862] [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: 11/15/2023] [Revised: 04/02/2024] [Accepted: 05/22/2024] [Indexed: 06/14/2024] Open
Abstract
Chronic inflammatory diseases are caused due to prolonged inflammation at a specific site of the body. Among other inflammatory diseases, bacterial meningitis, chronic obstructive pulmonary disease (COPD), atherosclerosis and inflammatory bowel diseases (IBD) are primarily focused on because of their adverse effects and fatality rates around the globe in recent times. In order to come up with novel strategies to eradicate these diseases, a clear understanding of the mechanisms of the diseases is needed. Similarly, detailed insight into the mechanisms of commercially available drugs and potent lead compounds from natural sources are also important to establish efficient therapeutic effects. Zebrafish is widely accepted as a model to study drug toxicity and the pharmacokinetic effects of the drug. Moreover, researchers use various inducers to trigger inflammatory cascades and stimulate physiological changes in zebrafish. The effect of these inducers contrasts with the type of zebrafish used in the investigation. Hence, a thorough analysis is required to study the current advancements in the zebrafish model for chronic inflammatory disease suppression. This review presents the most common inflammatory diseases, commercially available drugs, novel therapeutics, and their mechanisms of action for disease suppression. The review also provides a detailed description of various zebrafish models for these diseases. Finally, the future prospects and challenges for the same are described, which can help the researchers understand the potency of the zebrafish model and its further exploration for disease attenuation.
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Affiliation(s)
- Akshad Balde
- Biopharmaceuticals Lab, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India
| | - Cunnathur Saravanan Ramya
- Biopharmaceuticals Lab, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India
| | - Rasool Abdul Nazeer
- Biopharmaceuticals Lab, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India
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Yi R, Yang B, Zhu H, Sun Y, Wu H, Wang Z, Lu Y, He YW, Tian J. Quorum-Sensing Signal DSF Inhibits the Proliferation of Intestinal Pathogenic Bacteria and Alleviates Inflammatory Response to Suppress DSS-Induced Colitis in Zebrafish. Nutrients 2024; 16:1562. [PMID: 38892496 PMCID: PMC11173708 DOI: 10.3390/nu16111562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/13/2024] [Accepted: 05/14/2024] [Indexed: 06/21/2024] Open
Abstract
The imbalance of gut microbiota is an important factor leading to inflammatory bowel disease (IBD). Diffusible signal factor (DSF) is a novel quorum-sensing signal that regulates bacterial growth, metabolism, pathogenicity, and host immune response. This study aimed to explore the therapeutic effect and underlying mechanisms of DSF in a zebrafish colitis model induced by sodium dextran sulfate (DSS). The results showed that intake of DSF can significantly improve intestinal symptoms in the zebrafish colitis model, including ameliorating the shortening of the intestine, reducing the increase in the goblet cell number, and restoring intestinal pathological damage. DSF inhibited the upregulation of inflammation-related genes and promoted the expression of claudin1 and occludin1 to protect the tightness of intestinal tissue. The gut microbiome analysis demonstrated that DSF treatment helped the gut microbiota of the zebrafish colitis model recover to normal at the phylum and genus levels, especially in terms of pathogenic bacteria; DSF treatment downregulated the relative abundance of Aeromonas hydrophila and Staphylococcus aureus, and it was confirmed in microbiological experiments that DSF could effectively inhibit the colonization and infection of these two pathogens in the intestine. This study suggests that DSF can alleviate colitis by inhibiting the proliferation of intestinal pathogens and inflammatory responses in the intestine. Therefore, DSF has the potential to become a dietary supplement that assists in the antibiotic and nutritional treatment of IBD.
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Affiliation(s)
- Ruiya Yi
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an 710069, China; (R.Y.); (B.Y.); (H.Z.); (Y.S.); (H.W.); (Z.W.); (Y.L.)
| | - Bo Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an 710069, China; (R.Y.); (B.Y.); (H.Z.); (Y.S.); (H.W.); (Z.W.); (Y.L.)
| | - Hongjie Zhu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an 710069, China; (R.Y.); (B.Y.); (H.Z.); (Y.S.); (H.W.); (Z.W.); (Y.L.)
| | - Yu Sun
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an 710069, China; (R.Y.); (B.Y.); (H.Z.); (Y.S.); (H.W.); (Z.W.); (Y.L.)
| | - Hailan Wu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an 710069, China; (R.Y.); (B.Y.); (H.Z.); (Y.S.); (H.W.); (Z.W.); (Y.L.)
| | - Zhihao Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an 710069, China; (R.Y.); (B.Y.); (H.Z.); (Y.S.); (H.W.); (Z.W.); (Y.L.)
| | - Yongbo Lu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an 710069, China; (R.Y.); (B.Y.); (H.Z.); (Y.S.); (H.W.); (Z.W.); (Y.L.)
| | - Ya-Wen He
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Development Sciences, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jing Tian
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an 710069, China; (R.Y.); (B.Y.); (H.Z.); (Y.S.); (H.W.); (Z.W.); (Y.L.)
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Pretorius L, Smith C. Green rooibos (Aspalathus linearis) promotes gut health: insight into mechanisms. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117379. [PMID: 37923252 DOI: 10.1016/j.jep.2023.117379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/20/2023] [Accepted: 10/31/2023] [Indexed: 11/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Paralleling the increasing incidence of gastrointestinal disorders world-wide, therapeutic investigations of nutraceuticals to promote gastrointestinal health are gaining popularity. Although anecdotally well-known for its gut health promoting potential, sparse scientific evidence supports this action of Aspalathus linearis (Burm.f.) R. Dahlgren - or rooibos - at the gastrointestinal epithelial level. AIM OF THE STUDY Traditionally, rooibos is considered to exert antispasmodic, anti-inflammatory, and anti-nociceptive effects in the gut. However, the direct effect on intestinal epithelium is unknown. Thus, to assess the validity of anecdotal claims, two larval zebrafish models were utilized to evaluate effects of rooibos on intestinal health. MATERIALS AND METHODS Firstly, a larval zebrafish model of gastrointestinal inflammation (2-day TNBS-exposure) was employed. Co-administration of 6α-methylprednisolone served as an internal treatment control. Assessments included live imaging techniques and post-mortem immunofluorescent staining of epithelial tight junction proteins. In addition, whole body H2O2 and prostaglandin E2 assays were performed. Secondly, a gastrointestinal motility assay was performed, with known pro- and anti-kinetic mediators to assess the effect of rooibos to alter functional outcome in vivo. RESULTS Aqueous and ethanol extracts of green rooibos rescued TNBS-induced reductions in neutral red stained length of larval mid-intestines. Subsequent experiments confirmed the rescue capacity of the aqueous green rooibos extract regarding whole body oxidative and inflammatory status. Concerning tight junction proteins, only the aqueous green rooibos extract - and not prednisolone - normalized both zona occludens-1 and occludin expression levels when compared the TNBS group. In terms of gastrointestinal motility, the aqueous green rooibos extract significantly reduced the extent of gut motility dysregulation achieved by kinetic modulators. CONCLUSIONS Data indicates the potential of a 2 mg/ml aqueous extract of green rooibos to improve gastrointestinal integrity and functionality in vivo, suggesting beneficial effects of rooibos may already occur at the level of the gut. This provides some evidence to support indigenous knowledge.
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Affiliation(s)
- Lesha Pretorius
- Experimental Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, 7500, South Africa.
| | - Carine Smith
- Experimental Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, 7500, South Africa.
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Flores E, Dutta S, Bosserman R, van Hoof A, Krachler AM. Colonization of larval zebrafish ( Danio rerio) with adherent-invasive Escherichia coli prevents recovery of the intestinal mucosa from drug-induced enterocolitis. mSphere 2023; 8:e0051223. [PMID: 37971273 PMCID: PMC10732064 DOI: 10.1128/msphere.00512-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/07/2023] [Indexed: 11/19/2023] Open
Abstract
IMPORTANCE Although inflammatory bowel diseases are on the rise, what factors influence IBD risk and severity, and the underlying mechanisms remain to be fully understood. Although host genetics, microbiome, and environmental factors have all been shown to correlate with the development of IBD, cause and effect are difficult to disentangle in this context. For example, AIEC is a known pathobiont found in IBD patients, but it remains unclear if gut inflammation during IBD facilitates colonization with AIEC, or if AIEC colonization makes the host more susceptible to pro-inflammatory stimuli. It is critical to understand the mechanisms that contribute to AIEC infections in a susceptible host in order to develop successful therapeutics. Here, we show that the larval zebrafish model recapitulates key features of AIEC infections in other animal models and can be utilized to address these gaps in knowledge.
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Affiliation(s)
- Erika Flores
- Microbiology and Infectious Diseases Program, MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, University of Texas, Houston, Texas, USA
- Department of Microbiology and Molecular Genetics, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Soumita Dutta
- Department of Microbiology and Molecular Genetics, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Rachel Bosserman
- Department of Microbiology and Molecular Genetics, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Ambro van Hoof
- Microbiology and Infectious Diseases Program, MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, University of Texas, Houston, Texas, USA
- Department of Microbiology and Molecular Genetics, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Anne-Marie Krachler
- Microbiology and Infectious Diseases Program, MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, University of Texas, Houston, Texas, USA
- Department of Microbiology and Molecular Genetics, The University of Texas Health Science Center at Houston, Houston, Texas, USA
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Yang Y, Du H, Pan Y, Gong P, Yang Y, Wu F, Pan D, Xie W, Fu Z, Ni Y. Bifidobacterium animalis subsp. lactis LKM512 Alleviates Inflammatory Bowel Disease in Larval Zebrafish by Reshaping Microbiota. Biol Pharm Bull 2023; 46:1706-1713. [PMID: 37778980 DOI: 10.1248/bpb.b23-00406] [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: 10/03/2023]
Abstract
Inflammatory bowel disease (IBD) is a worldwide issue, and the increased incidence has brought a heavy burden to patients and society. Gut microbiota is involved in the pathogenesis of IBD, and targeting the microbiota, such as probiotics, has emerged as a potential therapy for the treatment of IBD. Here, the effect of Bifidobacterium animalis ssp. lactis LKM512 (LKM512), an anti-aging probiotic, on dextran sulfate sodium salt (DSS)-induced IBD in larval zebrafish was determined. Supplementation of LKM512 promoted the survival rate of the larvae, together with increased locomotor activities and body length. In addition, LKM512 treatment enhanced mucus secretion and alleviated intestinal injury, and these results were associated with the upregulation of mucin-related and downregulation of inflammatory markers. Moreover, LKM512 increased the diversity of the microbiota and ameliorated the dysbiosis by increasing the abundance of Bacteroidetes and Firmicutes and reducing the abundance of Proteobacteria. Specifically, the abundance of beneficial bacteria, including the short-chain fatty-acids (SCFAs)-producing genera Lachnospiraceae_NK4A136_group, Muribaculaceae, and Alloprevotella, was increased by LKM512, while the abundance of harmful genera, such as Pseudomonas, Halomonas, and Escherichia-Shigella, was reduced by LKM512. Consistent with these findings, the microbial functions related to metabolism were partly reversed by LKM512, and importantly, fermentation of short-chain fatty acids-related functions were enhanced by LKM512. Therefore, LKM512 might be one potential probiotic for the prevention and treatment of IBD, and further studies that clarify the mechanism of LKM512 would promote the application of LKM512.
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Affiliation(s)
- Yuru Yang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology
| | - Haimei Du
- College of Biotechnology and Bioengineering, Zhejiang University of Technology
| | - Yuxiang Pan
- College of Biotechnology and Bioengineering, Zhejiang University of Technology
| | - Ping Gong
- College of Biotechnology and Bioengineering, Zhejiang University of Technology
| | - Yi Yang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology
| | - Fan Wu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology
| | - Dixin Pan
- College of Biotechnology and Bioengineering, Zhejiang University of Technology
| | - Weihao Xie
- College of Biotechnology and Bioengineering, Zhejiang University of Technology
| | - Zhengwei Fu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology
| | - Yinhua Ni
- College of Biotechnology and Bioengineering, Zhejiang University of Technology
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Qiao X, Gao Q, Yang L, Wang X, Wang Z, Li Z, Xu J, Xue C. In-Depth Analysis of the Mechanism of Astaxanthin Succinate Diester in Reducing Ulcerative Colitis in C57BL/6J Mice Based on Microbiota Informatics. Molecules 2023; 28:6513. [PMID: 37764289 PMCID: PMC10537600 DOI: 10.3390/molecules28186513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/31/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
This paper aims to explore the effect and mechanism of water-soluble astaxanthin succinate diester (Asta-SD) on ulcerative colitis (UC) induced by dextran sodium sulfate in zebrafish and C57BL/6J mice. Asta-SD was synthesized with hydrophilic fatty acid succinic anhydride and the hydroxyl groups at the ends of F-Asta were synthesized by esterifying. Through the construction of a zebrafish intestinal inflammation model, it was found that Asta-SD could effectively reduce the levels of ROS and increase the number of healthy intestinal lysosomes in zebrafish. After continuous gavage of Asta-SD for seven days, the body weight, disease activity index, colonic length, colonic histopathology, expression of inflammatory factors, and intestinal flora of the mice were measured. The results showed that Asta-SD could significantly alleviate weight loss and colonic shrinkage, as well as reducing pro-inflammatory cytokines and recess injury in UC mice. The 16S rRNA gene sequencing showed that Asta-SD significantly increased the beneficial bacteria (Lactobacillus, Anaerotruncus) and decreased the relative abundance of pathogenic bacteria, effectively maintaining intestinal microbiota homeostasis in mice. Based on Pearson analysis, Bacteroides, Parabacteroides, and Butyrimionas were expected to be associated with the significant difference in the expression of inflammatory factors between the UC and the corresponding host. Thus, Asta-SD significantly improves UC and maintains intestinal microbiota homeostasis.
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Affiliation(s)
- Xing Qiao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (X.Q.); (Q.G.); (L.Y.); (X.W.); (Z.W.); (Z.L.); (C.X.)
- College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China
| | - Qun Gao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (X.Q.); (Q.G.); (L.Y.); (X.W.); (Z.W.); (Z.L.); (C.X.)
| | - Lu Yang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (X.Q.); (Q.G.); (L.Y.); (X.W.); (Z.W.); (Z.L.); (C.X.)
| | - Xiaoxu Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (X.Q.); (Q.G.); (L.Y.); (X.W.); (Z.W.); (Z.L.); (C.X.)
| | - Zhigao Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (X.Q.); (Q.G.); (L.Y.); (X.W.); (Z.W.); (Z.L.); (C.X.)
| | - Zhaojie Li
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (X.Q.); (Q.G.); (L.Y.); (X.W.); (Z.W.); (Z.L.); (C.X.)
| | - Jie Xu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (X.Q.); (Q.G.); (L.Y.); (X.W.); (Z.W.); (Z.L.); (C.X.)
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (X.Q.); (Q.G.); (L.Y.); (X.W.); (Z.W.); (Z.L.); (C.X.)
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8
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Kim SM, Park S, Hwang SH, Lee EY, Kim JH, Lee GS, Lee G, Chang DH, Lee JG, Hwang J, Lee Y, Kyung M, Kim EK, Kim JH, Kim TH, Moon JH, Kim BC, Ko G, Kim SY, Ryu JH, Lee JS, Lee CH, Kim JY, Kim S, Lee WJ, Kim MH. Secreted Akkermansia muciniphila threonyl-tRNA synthetase functions to monitor and modulate immune homeostasis. Cell Host Microbe 2023; 31:1021-1037.e10. [PMID: 37269833 DOI: 10.1016/j.chom.2023.05.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 03/23/2023] [Accepted: 05/09/2023] [Indexed: 06/05/2023]
Abstract
Commensal bacteria are critically involved in the establishment of tolerance against inflammatory challenges, the molecular mechanisms of which are just being uncovered. All kingdoms of life produce aminoacyl-tRNA synthetases (ARSs). Thus far, the non-translational roles of ARSs have largely been reported in eukaryotes. Here, we report that the threonyl-tRNA synthetase (AmTARS) of the gut-associated bacterium Akkermansia muciniphila is secreted and functions to monitor and modulate immune homeostasis. Secreted AmTARS triggers M2 macrophage polarization and orchestrates the production of anti-inflammatory IL-10 via its unique, evolutionary-acquired regions, which mediates specific interactions with TLR2. This interaction activates the MAPK and PI3K/AKT signaling pathways, which converge on CREB, leading to an efficient production of IL-10 and suppression of the central inflammatory mediator NF-κB. AmTARS restores IL-10-positive macrophages, increases IL-10 levels in the serum, and attenuates the pathological effects in colitis mice. Thus, commensal tRNA synthetases can act as intrinsic mediators that maintain homeostasis.
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Affiliation(s)
- Su-Man Kim
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea; Department of Biology Education, Chonnam National University, Gwangju 61186, Korea
| | - Shinhye Park
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea; Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Korea
| | - Seung-Ho Hwang
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Eun-Young Lee
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Jong-Hwan Kim
- Korean Bioinformation Center, KRIBB, Daejeon 34141, Korea
| | - Ga Seul Lee
- Core Research Facility & Analysis Center, KRIBB, Daejeon 34141, Korea; College of Pharmacy, Chungbuk National University, Cheongju 28160, Chungbuk, Korea
| | - Giljae Lee
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul 08826, Korea
| | - Dong-Ho Chang
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Jae-Geun Lee
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Jungwon Hwang
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Youngjin Lee
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Minsoo Kyung
- National Creative Research Initiative Center for Hologenomics and School of Biological Sciences, Seoul National University, Seoul 08826, Korea
| | - Eun-Kyoung Kim
- National Creative Research Initiative Center for Hologenomics and School of Biological Sciences, Seoul National University, Seoul 08826, Korea
| | - Jae-Hoon Kim
- Laboratory Animal Resource Center, KRIBB, Daejeon 34141, Korea
| | - Tae-Hwan Kim
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea; College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
| | - Jeong Hee Moon
- Core Research Facility & Analysis Center, KRIBB, Daejeon 34141, Korea
| | - Byoung-Chan Kim
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea; HealthBiome, Inc., Bioventure Center, Daejeon 34141, Korea
| | - GwangPyo Ko
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul 08826, Korea; Center for Human and Environmental Microbiome, Institute of Health and Environment, Seoul National University, Seoul 08826, Korea; KoBioLabs, Inc., Seoul 08826, Korea; Bio-MAX/N-Bio, Seoul National University, Seoul 08826, Korea
| | - Seon-Young Kim
- Korean Bioinformation Center, KRIBB, Daejeon 34141, Korea; Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Ji-Hwan Ryu
- Severance Biomedical Science Institute and Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jeong-Soo Lee
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea; Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Chul-Ho Lee
- Laboratory Animal Resource Center, KRIBB, Daejeon 34141, Korea; Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Jeong-Yoon Kim
- Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Korea
| | - Sunghoon Kim
- Institute for Artificial Intelligence and Biomedical Research, College of Pharmacy and College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon 21983, Republic of Korea
| | - Won-Jae Lee
- National Creative Research Initiative Center for Hologenomics and School of Biological Sciences, Seoul National University, Seoul 08826, Korea
| | - Myung Hee Kim
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea.
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9
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Zhao X, Liu Y, Xie J, Zhang L, Zhu Q, Su L, Guo C, Li H, Wang G, Zhang W, Cheng Y, Wu N, Xia XQ. The manipulation of cell suspensions from zebrafish intestinal mucosa contributes to understanding enteritis. Front Immunol 2023; 14:1193977. [PMID: 37251394 PMCID: PMC10213505 DOI: 10.3389/fimmu.2023.1193977] [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: 03/26/2023] [Accepted: 04/24/2023] [Indexed: 05/31/2023] Open
Abstract
Background Although zebrafish are commonly used to study intestinal mucosal immunity, no dedicated procedure for isolating immune cells from zebrafish intestines is currently available. A speedy and simple operating approach for preparing cell suspension from mucosa has been devised to better understanding of intestinal cellular immunity in zebrafish. Methods and results The mucosal villi were separated away from the muscle layer by repeated blows. The complete deprivation of mucosa was done and evidenced by HE and qPCR results. Higher expression of both innate (mpeg1, mpx, and lck) and adaptive immune genes (zap70, blnk, foxp3a, and foxp3b) was revealed compared to cells obtained by typical mesh rubbing. The cytometric results also revealed that the tested operation group had a higher concentration and viability. Further, fluorescent-labelled immune cells from 3mo Tg(lyz:DsRED2), Tg(mpeg1:EGFP), Tg(Rag2:DsRED), and Tg(lck:EGFP), were isolated and evaluated for the proportion, and immune cells' type could be inferred from the expression of marker genes. The transcriptomic data demonstrated that the intestinal immune cell suspension made using the new technique was enriched in immune-related genes and pathways, including il17a/f, il22, cd59, and zap70, as well as pattern recognition receptor signaling and cytokine-cytokine receptor interaction. In addition, the low expression of DEG for the adherent and close junctions indicated less muscular contamination. Also, lower expression of gel-forming mucus-associated genes in the mucosal cell suspension was consistent with the current less viscous cell suspension. To apply and validate the developed manipulation, enteritis was induced by soybean meal diet, and immune cell suspensions were analyzed by flow cytometry and qPCR. The finding that in enteritis samples, there was inflammatory increase of neutrophils and macrophages, was in line with upregulated cytokines (il8 and il10) and cell markers (mpeg1 and mpx). Conclusion As a result, the current work created a realistic technique for studying intestinal immune cells in zebrafish. The immune cells acquired may aid in further research and knowledge of intestinal illness at the cellular level.
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Affiliation(s)
- Xuyang Zhao
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | - Yuhang Liu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | - Jiayuan Xie
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Lei Zhang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Qingsong Zhu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | - Lian Su
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Cheng Guo
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Heng Li
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Guangxin Wang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Wanting Zhang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Yingyin Cheng
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Nan Wu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Xiao-Qin Xia
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
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10
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Ni Y, Zhang Y, Zheng L, Rong N, Yang Y, Gong P, Yang Y, Siwu X, Zhang C, Zhu L, Fu Z. Bifidobacterium and Lactobacillus improve inflammatory bowel disease in zebrafish of different ages by regulating the intestinal mucosal barrier and microbiota. Life Sci 2023; 324:121699. [PMID: 37061125 DOI: 10.1016/j.lfs.2023.121699] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/06/2023] [Accepted: 04/11/2023] [Indexed: 04/17/2023]
Abstract
AIMS Inflammatory bowel disease (IBD) patients are accompanied by impaired intestinal barrier integrity and gut microbiota dysbiosis. Strategies targeting the gut microbiota are potential therapies for preventing and ameliorating IBD. MAIN METHODS The potential roles of two probiotic stains, Bifidobacterium longum BL986 (BL986) and Lactobacillus casei LC122 (LC122), on intestinal mucosal barrier function and microbiota in IBD zebrafish of different ages were investigated. KEY FINDINGS BL986 and LC122 treatment promoted the development and increased the microbiota diversity in larval zebrafish. Both probiotic treatment ameliorated mortality, promoted intestinal mucus secretion, and reduced the expression of inflammatory markers, thereby improving intestinal mucosal barrier function in dextran sulfate sodium salt (DSS)-induced ulcerative colitis (UC) and 2,4,6-trinitro-benzenesulfonicacid (TNBS)-induced Crohn's disease (CD) models in zebrafish. Moreover, the composition and function of microbiota were altered in IBD zebrafish, and probiotics treatment displayed prominent microbiota features. BL986 was more potent in the DSS-induced UC model, and increased the abundance of Faecalibaculum and butyric acid levels. LC122 exerted better protection against TNBS-induced CD, and increased the abundance of Enhydrobacter and acetic acid levels. Furthermore, the effect of probiotics was stronger in larval and aged zebrafish. CONCLUSION The impact of probiotics on IBD might differ from the subtypes of IBD and the age of the zebrafish, suggesting the types of disease and age should be taken into full consideration during the practical usage of probiotics.
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Affiliation(s)
- Yinhua Ni
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Yi Zhang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Liujie Zheng
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Nianke Rong
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Yuru Yang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Ping Gong
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Yi Yang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Xuerong Siwu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Chenyang Zhang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Linxi Zhu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Zhengwei Fu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China.
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11
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Ding Y, Fern Ndez-Montero A, Mani A, Casadei E, Shibasaki Y, Takizawa F, Miyazawa R, Salinas I, Sunyer JO. Secretory IgM (sIgM) is an ancient master regulator of microbiota homeostasis and metabolism. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.26.530119. [PMID: 36909635 PMCID: PMC10002622 DOI: 10.1101/2023.02.26.530119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
UNLABELLED The co-evolution between secretory immunoglobulins (sIgs) and microbiota began with the emergence of IgM over half a billion years ago. Yet, IgM function in vertebrates is mostly associated with systemic immunity against pathogens. sIgA and sIgT are the only sIgs known to be required in the control of microbiota homeostasis in warm- and cold-blooded vertebrates respectively. Recent studies have shown that sIgM coats a large proportion of the gut microbiota of humans and teleost fish, thus suggesting an ancient and conserved relationship between sIgM and microbiota early in vertebrate evolution. To test this hypothesis, we temporarily and selectively depleted IgM from rainbow trout, an old bony fish species. IgM depletion resulted in a drastic reduction in microbiota IgM coating levels and losses in gutassociated bacteria. These were accompanied by bacterial translocation, severe gut tissue damage, inflammation and dysbiosis predictive of metabolic shifts. Furthermore, depletion of IgM resulted in body weight loss and lethality in an experimental colitis model. Recovery of sIgM to physiological levels restores tissue barrier integrity, while microbiome homeostasis and their predictive metabolic capabilities are not fully restituted. Our findings uncover a previously unrecognized role of sIgM as an ancient master regulator of microbiota homeostasis and metabolism and challenge the current paradigm that sIgA and sIgT are the key vertebrate sIgs regulating microbiome homeostasis. ONE-SENTENCE SUMMARY IgM, the most ancient and conserved immunoglobulin in jawed vertebrates, is required for successful symbiosis with the gut microbiota.
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12
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Pretorius L, Smith C. Tyramine-induced gastrointestinal dysregulation is attenuated via estradiol associated mechanisms in a zebrafish larval model. Toxicol Appl Pharmacol 2023; 461:116399. [PMID: 36716863 DOI: 10.1016/j.taap.2023.116399] [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: 09/28/2022] [Revised: 01/06/2023] [Accepted: 01/19/2023] [Indexed: 01/30/2023]
Abstract
Development of targeted therapeutics to alleviate gastrointestinal (GI) inflammation and its debilitating consequences are required. In this context, the trace aminergic system may link together sex, diet and inflammation. Utilising a zebrafish larval model of GI inflammation, the current study aimed to investigate mechanisms by which excess amounts of trace amines (TAs) may influence GI health. In addition, we probed the potential role of 17β-estradiol (E2) and its receptors, given the known female-predominance of many GI disorders. To assess GI functionality and integrity, live imaging techniques (neutral red staining) and post-mortem immunofluorescent staining of tight junction proteins (occludin and ZO-1) were analyzed respectively. In addition, behavioural assays, as an indication of overall wellbeing, as well as whole body H2O2 and prostaglandin E2 assays were performed to inform on oxidative and inflammatory status. Excess β-phenethylamine (PEA), tryptamine (TRP) and ρ-tyramine (TYR) resulted in adverse GI and systemic effects. In this regard, clear beneficial effects of E2 to modulate the effects of PEA, TRP and TYR was evident. Moreover, agmatine displayed potential protective effects on GI epithelium and whole body oxidative status, however, potential to induce systemic inflammation suggests the importance of dosage and administration optimisation. Taken together, TYR seems like the most prominent TA to have damaging GI effects, feasibly exacerbating GI inflammation. In this context, the relative lack of E2 may provide mechanistic insights into the reported female-predominance of GI disorders. Moreover, an effective therapeutic in this context may be required to maintain GI TA load despite fluctuating E2 levels.
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Affiliation(s)
- L Pretorius
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa
| | - C Smith
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa.
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13
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Dietary Strategies to Modulate the Health Condition and Immune Responses in Gilthead Seabream (Sparus aurata) Juveniles Following Intestinal Inflammation. Animals (Basel) 2022; 12:ani12213019. [PMID: 36359143 PMCID: PMC9657010 DOI: 10.3390/ani12213019] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/26/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
Simple Summary Feed additives are known to have biological proprieties that can improve fish health. This work assessed the effect of two feed additives (Phaeodactylum tricornutum extracts rich in β-glucans and curcumin) on the gilthead seabream health condition, and its modulatory effects following dextran sodium sulphate (DSS) administration as a chemical inducer of intestinal inflammation. While minor immune-enhancing changes were observed among fish fed dietary treatments at the end of the feeding trial, after the inflammatory stimulus, the feed additives were able to alleviate, to some extent, the DSS-induced effects at both the intestinal and systemic levels. Abstract Several feed additives have proved to be beneficial in eliciting fish health. Β-glucans and curcumin are compounds with immunomodulatory capacities known to increase growth performance, stimulate immunity, improve general health, and enhance disease resistance in fish. The present study aimed to evaluate the effects of dietary Phaeodactylum tricornutum extracts rich in β-glucans and curcumin on gilthead seabream health status prior to and following an intestinal inflammatory stimulus. Three experimental diets were formulated: a practical commercial-type diet (CTRL), a CTRL diet supplemented with 1% microalgae-derived β-glucans extract (BG), and a CTRL diet supplemented with 0.2% of curcumin (CUR). After 30 days of the feeding trial, fish were sampled and subjected to an oral administration of 1% dextran sodium sulphate (DSS) to induce intestinal inflammation. Four groups were considered: a group of fish continued to be fed on the CTRL diet while the remaining groups were exposed to DSS, including CTRL-D (CTRL + DSS), BG-D (BG + DSS), and CUR-D (CUR + DSS), for 6 days. Growth, plasma and gut humoral immunity, liver and gut oxidative stress biomarkers, and intestinal gene expression were evaluated. No significant differences were found in growth after 30 days of feeding; however, seabream fed BG had decreased anti-protease activity and nitric oxide concentration in plasma while those fed CUR had increased mRNA levels of the tnfα, csf1r, and hep genes compared to those fed CTRL. After the inflammatory stimulus, hematocrit was enhanced in fish fed BG-D and CUR-D while red blood cell counts increased in those fed CTRL-D. Superoxide dismutase activity decreased in the intestine of all DSS groups while lipid peroxidation increased in the gut of fish fed CTRL-D and BG-D compared to CTRL. Moreover, the mRNA expression levels of csfr1 and sod decreased in fish fed CTRL-D and BG-D compared to CTRL, respectively. Despite the mild intestinal inflammatory condition induced by DSS, CUR was able to partially ameliorate its effects, improving the hematological profile and assisting against the oxidative stress.
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14
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Carnovali M, Banfi G, Porta G, Mariotti M. Soybean Meal-Dependent Acute Intestinal Inflammation Delays Osteogenesis in Zebrafish Larvae. Int J Mol Sci 2022; 23:7480. [PMID: 35806483 PMCID: PMC9267612 DOI: 10.3390/ijms23137480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 12/13/2022] Open
Abstract
Foods are known to be modulators of inflammation and skeletal development. The intestine plays an essential role in the regulation of bone health mainly through the regulation of the absorption of vitamin D and calcium; in fact, inflammatory bowel diseases are often related to bone health issues such as low bone mineral density, high fracture risk, osteoporosis and osteopenia. Considering the complexity of the pathways involved, the use of a simple animal model can be highly useful to better elucidate the pathogenic mechanisms. Soybean flour with a high saponin content has been used in many studies to induce intestinal inflammation in zebrafish larvae. Using a 50% soybean meal (SBM), we analyzed the effects of this soy-induced inflammatory bowel disease on zebrafish larval osteogenesis. Soybean meal induces intestinal functional alterations and an inflammatory state, highlighted by neutral red staining, without altering the general development of the larvae. Our data show that the chondrogenesis as well as endochondral ossification of the head of zebrafish larvae are not affected by an SBM-diet, whereas intramembranous ossification was delayed both in the head, where the length of the ethmoid plate reduced by 17%, and in the trunk with a delayed vertebral mineralization of 47% of SBM larvae. These data highlight that diet-dependent bowel inflammation can differently modulate the different mechanisms of bone development in different zones of the skeleton of zebrafish larvae.
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Affiliation(s)
- Marta Carnovali
- IRCCS Istituto Ortopedico Galeazzi, 20161 Milan, Italy; (M.C.); (G.B.)
| | - Giuseppe Banfi
- IRCCS Istituto Ortopedico Galeazzi, 20161 Milan, Italy; (M.C.); (G.B.)
- School of Medicine, Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Giovanni Porta
- Centro di Medicina Genomica, Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy;
| | - Massimo Mariotti
- IRCCS Istituto Ortopedico Galeazzi, 20161 Milan, Italy; (M.C.); (G.B.)
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy
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15
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AI-2/LuxS Quorum Sensing System Promotes Biofilm Formation of Lactobacillus rhamnosus GG and Enhances the Resistance to Enterotoxigenic Escherichia coli in Germ-Free Zebrafish. Microbiol Spectr 2022; 10:e0061022. [PMID: 35700135 PMCID: PMC9430243 DOI: 10.1128/spectrum.00610-22] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
The LuxS enzyme plays a key role in both quorum sensing (QS) and the regulation of bacterial growth. It catalyzes the production of autoinducer-2 (AI-2) signaling molecule, which is a component of the methyl cycle and methionine metabolism. This study aimed at investigating the differences between the Lactobacillus rhamnosus GG (LGG) wild-type strain (WT) and its luxS mutant (ΔluxS) during biofilm formation and when resisting to inflammation caused by Enterotoxigenic Escherichia coli (ETEC) in germ-free zebrafish. Our results suggest that in the absence of luxS when LGG was knocked out, biofilm formation, extracellular polysaccharide secretion and adhesion were all compromised. Addition of synthetic AI-2 indeed rescued, at least partially, the deficiencies observed in the mutant strain. The colonizing and immunomodulatory function in WT versus ΔluxS mutants were further studied in a germ-free zebrafish model. The concentration of AI-2 signaling molecules decreased sharply in zebrafish infected with the ΔluxS. At the same time, compared with the ΔluxS, the wild-type strain could colonize the germ-free zebrafish more effectively. Our transcriptome results suggest that genes involved in immunity, signal transduction, and cell adhesion were downregulated in zebrafish infected with ΔluxS and WT. In the WT, the immune system of germ-free zebrafish was activated more effectively through the MAPK and NF-κB pathway, and its ability to fight the infection against ETEC was increased. Together, our results demonstrate that the AI-2/LuxS system plays an important role in biofilm formation to improve LGG and alleviate inflammation caused by ETEC in germ-free zebrafish. IMPORTANCELactobacillus rhamnosus GG is a widely used probiotic to improve host intestinal health, promote growth, reduce diarrhea, and modulate immunity. In recent years, the bacterial quorum sensing system has attracted much attention; however, there has not been much research on the effect of the LuxS/AI-2 quorum sensing system of Lactobacillus on bacteriostasis, microbial ecology balance, and immune regulation in intestine. In this study, we used germ-free zebrafish as an animal model to compare the differences between wild-type and luxS mutant strains. We showed how AI-2/LuxS QS affects the release of AI-2 and how QS regulates the colonization, EPS synthesis and biofilm formation of LGG. This study provides an idea for the targeted regulation of animal intestinal health with probiotics by controlling bacteria quorum sensing system.
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16
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Kim HD, So E, Lee J, Wang Y, Gill VS, Gorbacheva A, Han HJ, Ng KGL, Ning K, Pranoto IKA, Cabrera AJH, Eom DS, Kwon YV. Wear and Tear of the Intestinal Visceral Musculature by Intrinsic and Extrinsic Factors. Dev Dyn 2022; 251:1291-1305. [PMID: 35355366 DOI: 10.1002/dvdy.473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 02/18/2022] [Accepted: 03/19/2022] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND The gut visceral musculature plays essential roles in not only moving substances through the lumen but also maintaining the function and physiology of the gut. Although the development of the visceral musculature has been studied in multiple model organisms, how it degenerates is poorly understood. RESULTS Here, we employ the Drosophila midgut as a model to demonstrate that the visceral musculature is disrupted by intrinsic and extrinsic factors, such as aging, feeding, chemical-induced tissue damage, and oncogenic transformation in the epithelium. Notably, we define four prominent visceral musculature disruption phenotypes, which we refer as 'sprout', 'discontinuity', 'furcation', and 'crossover' of the longitudinal muscle. Given that the occurrence of these phenotypes is increased during aging and under various stresses, we propose that these phenotypes can be used as quantitative readouts of deterioration of the visceral musculature. Intriguingly, administration of a tissue-damaging chemical dextran sulfate sodium (DSS) induced similar visceral musculature disruption phenotypes in zebrafish larvae, indicating that ingestion of a tissue-damaging chemical can disrupt the visceral musculature in a vertebrate as well. CONCLUSIONS Our study provides insights into the deterioration of the gut visceral musculature and lays a groundwork for investigating the underlying mechanisms in Drosophila as well as other animals. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ho D Kim
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Eric So
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Jiae Lee
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Yi Wang
- Department of Developmental and Cell Biology, School of Biological Sciences, University of California, Irvine, CA
| | - Vikram S Gill
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Anna Gorbacheva
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Hee Jin Han
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Katelyn G-L Ng
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Ken Ning
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Inez K A Pranoto
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Alejandra J H Cabrera
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Dae Seok Eom
- Department of Developmental and Cell Biology, School of Biological Sciences, University of California, Irvine, CA
| | - Young V Kwon
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
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Di Narzo AF, Houten SM, Kosoy R, Huang R, Vaz FM, Hou R, Wei G, Wang WH, Comella PH, Dodatko T, Rogatsky E, Stojmirovic A, Brodmerkel C, Perrigoue J, Hart A, Curran M, Friedman JR, Zhu J, Agrawal M, Cho J, Ungaro R, Dubinsky M, Sands BE, Suárez-Fariñas M, Schadt EE, Colombel JF, Kasarskis A, Hao K, Argmann C. Integrative Analysis of the Inflammatory Bowel Disease Serum Metabolome Improves Our Understanding of Genetic Etiology and Points to Novel Putative Therapeutic Targets. Gastroenterology 2022; 162:828-843.e11. [PMID: 34780722 PMCID: PMC9214725 DOI: 10.1053/j.gastro.2021.11.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 11/01/2021] [Accepted: 11/07/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND & AIMS Polygenic and environmental factors are underlying causes of inflammatory bowel disease (IBD). We hypothesized that integration of the genetic loci controlling a metabolite's abundance, with known IBD genetic susceptibility loci, may help resolve metabolic drivers of IBD. METHODS We measured the levels of 1300 metabolites in the serum of 484 patients with ulcerative colitis (UC) and 464 patients with Crohn's disease (CD) and 365 controls. Differential metabolite abundance was determined for disease status, subtype, clinical and endoscopic disease activity, as well as IBD phenotype including disease behavior, location, and extent. To inform on the genetic basis underlying metabolic diversity, we integrated metabolite and genomic data. Genetic colocalization and Mendelian randomization analyses were performed using known IBD risk loci to explore whether any metabolite was causally associated with IBD. RESULTS We found 173 genetically controlled metabolites (metabolite quantitative trait loci, 9 novel) within 63 non-overlapping loci (7 novel). Furthermore, several metabolites significantly associated with IBD disease status and activity as defined using clinical and endoscopic indexes. This constitutes a resource for biomarker discovery and IBD biology insights. Using this resource, we show that a novel metabolite quantitative trait locus for serum butyrate levels containing ACADS was not supported as causal for IBD; replicate the association of serum omega-6 containing lipids with the fatty acid desaturase 1/2 locus and identify these metabolites as causal for CD through Mendelian randomization; and validate a novel association of serum plasmalogen and TMEM229B, which was predicted as causal for CD. CONCLUSIONS An exploratory analysis combining genetics and unbiased serum metabolome surveys can reveal novel biomarkers of disease activity and potential mediators of pathology in IBD.
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Affiliation(s)
- Antonio F. Di Narzo
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Sema4, Stamford, CT, 06902, USA
| | - Sander M. Houten
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Icahn Institute for Data Science and Genomic Technology, New York City, NY, USA
| | - Roman Kosoy
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Icahn Institute for Data Science and Genomic Technology, New York City, NY, USA
| | - Ruiqi Huang
- Center for Biostatistics, Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Frédéric M. Vaz
- Department of Clinical Chemistry, Amsterdam Gastroenterology & Metabolism, Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Ruixue Hou
- Center for Biostatistics, Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Gabrielle Wei
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Icahn Institute for Data Science and Genomic Technology, New York City, NY, USA
| | - Wen-hui Wang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Icahn Institute for Data Science and Genomic Technology, New York City, NY, USA
| | - Phillip H. Comella
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Icahn Institute for Data Science and Genomic Technology, New York City, NY, USA
| | - Tetyana Dodatko
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Icahn Institute for Data Science and Genomic Technology, New York City, NY, USA
| | - Eduard Rogatsky
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Icahn Institute for Data Science and Genomic Technology, New York City, NY, USA
| | | | | | | | - Amy Hart
- Janssen R&D, LLC, 1400 McKean Road, Spring House, PA, USA
| | - Mark Curran
- Janssen R&D, LLC, 1400 McKean Road, Spring House, PA, USA
| | | | - Jun Zhu
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Sema4, Stamford, CT, 06902, USA
- Icahn Institute for Data Science and Genomic Technology, New York City, NY, USA
| | - Manasi Agrawal
- The Dr. Henry D. Janowitz Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Judy Cho
- The Dr. Henry D. Janowitz Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ryan Ungaro
- The Dr. Henry D. Janowitz Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Marla Dubinsky
- The Dr. Henry D. Janowitz Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Bruce E Sands
- The Dr. Henry D. Janowitz Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Mayte Suárez-Fariñas
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Biostatistics, Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Eric E. Schadt
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Sema4, Stamford, CT, 06902, USA
- Icahn Institute for Data Science and Genomic Technology, New York City, NY, USA
| | - Jean-Frederic Colombel
- The Dr. Henry D. Janowitz Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Andrew Kasarskis
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Sema4, Stamford, CT, 06902, USA
- Icahn Institute for Data Science and Genomic Technology, New York City, NY, USA
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ke Hao
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Sema4, Stamford, CT, 06902, USA
- Icahn Institute for Data Science and Genomic Technology, New York City, NY, USA
| | - Carmen Argmann
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Icahn Institute for Data Science and Genomic Technology, New York City, NY, USA
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18
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Huo J, Wu Z, Sun W, Wang Z, Wu J, Huang M, Wang B, Sun B. Protective Effects of Natural Polysaccharides on Intestinal Barrier Injury: A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:711-735. [PMID: 35078319 DOI: 10.1021/acs.jafc.1c05966] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Owing to their minimal side effects and effective protection from oxidative stress, inflammation, and malignant growth, natural polysaccharides (NPs) are a potential adjuvant therapy for several diseases caused by intestinal barrier injury (IBI). More studies are accumulating on the protective effects of NPs with respect to IBI, but the underlying mechanisms remain unclear. Thus, this review aims to represent current studies that investigate the protective effects of NPs on IBI by directly maintaining intestinal epithelial barrier integrity (inhibiting oxidative stress, regulating inflammatory cytokine expression, and increasing tight junction protein expression) and indirectly regulating intestinal immunity and microbiota. Furthermore, the mechanisms underlying IBI development are briefly introduced, and the structure-activity relationships of polysaccharides with intestinal barrier protection effects are discussed. Potential developments and challenges associated with NPs exhibiting protective effects against IBI have also been highlighted to guide the application of NPs in the treatment of intestinal diseases caused by IBI.
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Affiliation(s)
- Jiaying Huo
- Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Ziyan Wu
- Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Weizheng Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Zhenhua Wang
- Center for Mitochondria and Healthy Aging, College of Life Science, Yantai University, Yantai, Shandong 264005, People's Republic of China
| | - Jihong Wu
- Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Mingquan Huang
- Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Bowen Wang
- Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Baoguo Sun
- Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, People's Republic of China
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19
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Huang X, Ai F, Ji C, Tu P, Gao Y, Wu Y, Yan F, Yu T. A Rapid Screening Method of Candidate Probiotics for Inflammatory Bowel Diseases and the Anti-inflammatory Effect of the Selected Strain Bacillus smithii XY1. Front Microbiol 2022; 12:760385. [PMID: 34975786 PMCID: PMC8718878 DOI: 10.3389/fmicb.2021.760385] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/18/2021] [Indexed: 12/18/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic intestinal disease associated with the inflammatory gastrointestinal tract and microbiome dysbiosis. Probiotics are a promising intervention, and several probiotics have been reported to positively affect IBD remission and prevention, particularly on ulcerative colitis (UC). However, there is still a limitation in the knowledge of effectiveness and safety of probiotics therapies for IBD. Exploring more potential probiotics helps to find extensive evidence for probiotic intervention. This study established a rapid method for probiotics candidate screening and finally screened out one strain with the best protective effect. Forty strains isolated from four different sources were used for this screening. Hemolysis tests and acute toxic test evaluated strain safety. Zebrafish were first treated with dextran sodium sulfate (DSS) for colitis induction, and every bacteria were individually added to the fish water subsequently. Results showed eight strains could lower the larvae mortality within 3 days under a 0.6% DSS concentration, including Lacticaseibacillus rhamnosus GG, L. rhamnosus NBRC3425, Bacillus smithii DSM4216, B. smithii XY1, Bacillus coagulans NBRC12583, Bacillus coagulans XY2, Lactobacillus parafarraginis XYRR2, and Bacillus licheniformis XYT3. Among eight, B. smithii XY1 was the only strain having the equal ability to alleviate neutrophil infiltration in the larvae intestine with that ability of prednisolone under a 0.5% DSS concentration. Bacillus smithii XY1 restored intestinal epithelial cell integrity after DSS damage, as well as regulated the gene expression inflammation-related factors, indicating its bio-function of inflammatory response alleviation.
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Affiliation(s)
- Xuedi Huang
- National Engineering Laboratory of Intelligent Food Technology and Equipment, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Fang Ai
- National Engineering Laboratory of Intelligent Food Technology and Equipment, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Chen Ji
- National Engineering Laboratory of Intelligent Food Technology and Equipment, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Pengcheng Tu
- National Engineering Laboratory of Intelligent Food Technology and Equipment, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Yufang Gao
- National Engineering Laboratory of Intelligent Food Technology and Equipment, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Yalan Wu
- National Engineering Laboratory of Intelligent Food Technology and Equipment, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Fujie Yan
- National Engineering Laboratory of Intelligent Food Technology and Equipment, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Ting Yu
- National Engineering Laboratory of Intelligent Food Technology and Equipment, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
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20
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Sireswar S, Dey G, Biswas S. Influence of fruit-based beverages on efficacy of Lacticaseibacillus rhamnosus GG (Lactobacillus rhamnosus GG) against DSS-induced intestinal inflammation. Food Res Int 2021; 149:110661. [PMID: 34600663 DOI: 10.1016/j.foodres.2021.110661] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/30/2021] [Accepted: 08/23/2021] [Indexed: 12/19/2022]
Abstract
Different lines of evidences from clinical, epidemiological and biochemical studies have established that optimal nutrition including probiotic and fruit phenolics can mitigate the risk and morbidity associated with some chronic diseases. The basis for this observation is the potential synergies that may exist between probiotic strains and different bioactive components of food matrices. This study was conceptualized to compare the efficiency of a probiotic strain in two different fruit matrices. Two fruits, viz., sea buckthorn (Hippophae rhamnoides) (SBT) and apples (Malus pumila) (APJ) were chosen and the anti-inflammatory effects of L. rhamnosus GG (ATCC 53103) (LR) fortified in SBT and APJ were analysed against dextran sulphate sodium (DSS) induced colitis in zebrafish (Danio rerio). The results showed that administration of probiotic (LR) fortified, malt supplemented SBT beverage (SBT + M + LR) had better restorative potential on the intestinal barrier function and mucosal damage, in comparison to LR fortified, malt supplemented APJ beverage (APJ + M + LR). SBT + M + LR demonstrated adequate anti-oxidant potential by enhancing the CAT, SOD, GPx and GSH activities, impaired due to DSS administration. The increase in the expressions of toll like receptor (TLR)-2, TLR-4 and TLR-5 induced by DSS were significantly inhibited by SBT + M + LR administration. Gene expression of pro-inflammatory markers, (NF-κB, TNF-α, IL-1β, IL-6, IL-8, CCL20, MPO and MMP9) were attenuated by SBT + M + LR treatment in intestinal tissues of DSS-treated zebrafishes. Notably, SBT + M + LR increased the expression of anti-inflammatory cytokine, IL-10. The study provides evidence that specific interactions between fruit matrix and probiotic strain can provide adjunct therapeutic strategy to manage intestinal inflammation.
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Affiliation(s)
- Srijita Sireswar
- School of Biotechnology, Kalinga Institute of Industrial Technology, Deemed to be University, Patia, Bhubaneswar, Odisha 751024. India
| | - Gargi Dey
- School of Biotechnology, Kalinga Institute of Industrial Technology, Deemed to be University, Patia, Bhubaneswar, Odisha 751024. India.
| | - Sutapa Biswas
- Care Hospital, Chandrasekharpur, Bhubaneswar, Odisha 751016, India
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21
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Ivanovics B, Gazsi G, Reining M, Berta I, Poliska S, Toth M, Domokos A, Nagy B, Staszny A, Cserhati M, Csosz E, Bacsi A, Csenki-Bakos Z, Acs A, Urbanyi B, Czimmerer Z. Embryonic exposure to low concentrations of aflatoxin B1 triggers global transcriptomic changes, defective yolk lipid mobilization, abnormal gastrointestinal tract development and inflammation in zebrafish. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125788. [PMID: 33838512 DOI: 10.1016/j.jhazmat.2021.125788] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/19/2021] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
Aflatoxin B1-contaminated feeds and foods induce various health problems in domesticated animals and humans, including tumor development and hepatotoxicity. Aflatoxin B1 also has embryotoxic effects in different livestock species and humans. However, it is difficult to distinguish between the indirect, maternally-mediated toxic effects and the direct embryotoxicity of aflatoxin B1 in mammals. In the present study, we investigated the aflatoxin B1-induced direct embryotoxic effects in a zebrafish embryo model system combining toxicological, transcriptomic, immunological, and biochemical approaches. Embryonic exposure to aflatoxin B1 induced significant changes at the transcriptome level resulting in elevated expression of inflammatory gene network and repression of lipid metabolism and gastrointestinal tract development-related gene sets. According to the gene expression changes, massive neutrophil granulocyte influx, elevated nitric oxide production, and yolk lipid accumulation were observed in the abdominal region of aflatoxin B1-exposed larvae. In parallel, aflatoxin B1-induced defective gastrointestinal tract development and reduced L-arginine level were found in our model system. Our results revealed the complex direct embryotoxic effects of aflatoxin B1, including inhibited lipid utilization, defective intestinal development, and inflammation.
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Affiliation(s)
- Bence Ivanovics
- Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, H-2100 Godollo, Hungary
| | - Gyongyi Gazsi
- Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, H-2100 Godollo, Hungary
| | - Marta Reining
- Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, H-2100 Godollo, Hungary
| | - Izabella Berta
- Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, H-2100 Godollo, Hungary
| | - Szilard Poliska
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Marta Toth
- Department of Immunology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Apolka Domokos
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; Molecular Cell and Immunobiology Doctoral School, Faculty of Medicine, University of Debrecen, H-4032, Debrecen, Hungary
| | - Bela Nagy
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Adam Staszny
- Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, H-2100 Godollo, Hungary
| | - Matyas Cserhati
- Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, H-2100 Godollo, Hungary
| | - Eva Csosz
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Attila Bacsi
- Department of Immunology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Zsolt Csenki-Bakos
- Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, H-2100 Godollo, Hungary
| | - Andras Acs
- Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, H-2100 Godollo, Hungary
| | - Bela Urbanyi
- Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, H-2100 Godollo, Hungary.
| | - Zsolt Czimmerer
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary.
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22
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A myeloid-stromal niche and gp130 rescue in NOD2-driven Crohn's disease. Nature 2021; 593:275-281. [PMID: 33789339 DOI: 10.1038/s41586-021-03484-5] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 03/23/2021] [Indexed: 12/13/2022]
Abstract
Crohn's disease is a chronic inflammatory intestinal disease that is frequently accompanied by aberrant healing and stricturing complications. Crosstalk between activated myeloid and stromal cells is critical in the pathogenicity of Crohn's disease1,2, and increases in intravasating monocytes are correlated with a lack of response to anti-TNF treatment3. The risk alleles with the highest effect on Crohn's disease are loss-of-function mutations in NOD24,5, which increase the risk of stricturing6. However, the mechanisms that underlie pathogenicity driven by NOD2 mutations and the pathways that might rescue a lack of response to anti-TNF treatment remain largely uncharacterized. Here we use direct ex vivo analyses of patients who carry risk alleles of NOD2 to show that loss of NOD2 leads to dysregulated homeostasis of activated fibroblasts and macrophages. CD14+ peripheral blood mononuclear cells from carriers of NOD2 risk alleles produce cells that express high levels of collagen, and elevation of conserved signatures is observed in nod2-deficient zebrafish models of intestinal injury. The enrichment of STAT3 regulation and gp130 ligands in activated fibroblasts and macrophages suggested that gp130 blockade might rescue the activated program in NOD2-deficient cells. We show that post-treatment induction of the STAT3 pathway is correlated with a lack of response to anti-TNF treatment in patients, and demonstrate in vivo in zebrafish the amelioration of the activated myeloid-stromal niche using the specific gp130 inhibitor bazedoxifene. Our results provide insights into NOD2-driven fibrosis in Crohn's disease, and suggest that gp130 blockade may benefit some patients with Crohn's disease-potentially as a complement to anti-TNF therapy.
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23
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Xie Y, Meijer AH, Schaaf MJM. Modeling Inflammation in Zebrafish for the Development of Anti-inflammatory Drugs. Front Cell Dev Biol 2021; 8:620984. [PMID: 33520995 PMCID: PMC7843790 DOI: 10.3389/fcell.2020.620984] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 12/18/2020] [Indexed: 12/16/2022] Open
Abstract
Dysregulation of the inflammatory response in humans can lead to various inflammatory diseases, like asthma and rheumatoid arthritis. The innate branch of the immune system, including macrophage and neutrophil functions, plays a critical role in all inflammatory diseases. This part of the immune system is well-conserved between humans and the zebrafish, which has emerged as a powerful animal model for inflammation, because it offers the possibility to image and study inflammatory responses in vivo at the early life stages. This review focuses on different inflammation models established in zebrafish, and how they are being used for the development of novel anti-inflammatory drugs. The most commonly used model is the tail fin amputation model, in which part of the tail fin of a zebrafish larva is clipped. This model has been used to study fundamental aspects of the inflammatory response, like the role of specific signaling pathways, the migration of leukocytes, and the interaction between different immune cells, and has also been used to screen libraries of natural compounds, approved drugs, and well-characterized pathway inhibitors. In other models the inflammation is induced by chemical treatment, such as lipopolysaccharide (LPS), leukotriene B4 (LTB4), and copper, and some chemical-induced models, such as treatment with trinitrobenzene sulfonic acid (TNBS), specifically model inflammation in the gastro-intestinal tract. Two mutant zebrafish lines, carrying a mutation in the hepatocyte growth factor activator inhibitor 1a gene (hai1a) and the cdp-diacylglycerolinositol 3-phosphatidyltransferase (cdipt) gene, show an inflammatory phenotype, and they provide interesting model systems for studying inflammation. These zebrafish inflammation models are often used to study the anti-inflammatory effects of glucocorticoids, to increase our understanding of the mechanism of action of this class of drugs and to develop novel glucocorticoid drugs. In this review, an overview is provided of the available inflammation models in zebrafish, and how they are used to unravel molecular mechanisms underlying the inflammatory response and to screen for novel anti-inflammatory drugs.
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24
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Laham AJ, Saber-Ayad M, El-Awady R. DYRK1A: a down syndrome-related dual protein kinase with a versatile role in tumorigenesis. Cell Mol Life Sci 2021; 78:603-619. [PMID: 32870330 PMCID: PMC11071757 DOI: 10.1007/s00018-020-03626-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/22/2020] [Accepted: 08/18/2020] [Indexed: 12/14/2022]
Abstract
Dual-specificity tyrosine phosphorylation-regulated kinase 1A (DYRK1A) is a dual kinase that can phosphorylate its own activation loop on tyrosine residue and phosphorylate its substrates on threonine and serine residues. It is the most studied member of DYRK kinases, because its gene maps to human chromosome 21 within the Down syndrome critical region (DSCR). DYRK1A overexpression was found to be responsible for the phenotypic features observed in Down syndrome such as mental retardation, early onset neurodegenerative, and developmental heart defects. Besides its dual activity in phosphorylation, DYRK1A carries the characteristic of duality in tumorigenesis. Many studies indicate its possible role as a tumor suppressor gene; however, others prove its pro-oncogenic activity. In this review, we will focus on its multifaceted role in tumorigenesis by explaining its participation in some cancer hallmarks pathways such as proliferative signaling, transcription, stress, DNA damage repair, apoptosis, and angiogenesis, and finally, we will discuss targeting DYRK1A as a potential strategy for management of cancer and neurodegenerative disorders.
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Affiliation(s)
- Amina Jamal Laham
- College of Medicine, University of Sharjah, Sharjah, UAE
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE
| | - Maha Saber-Ayad
- College of Medicine, University of Sharjah, Sharjah, UAE.
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE.
| | - Raafat El-Awady
- College of Medicine, University of Sharjah, Sharjah, UAE.
- College of Pharmacy, University of Sharjah, Sharjah, UAE.
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25
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Gilman KE, Limesand KH. The complex role of prostaglandin E 2-EP receptor signaling in wound healing. Am J Physiol Regul Integr Comp Physiol 2020; 320:R287-R296. [PMID: 33296281 DOI: 10.1152/ajpregu.00185.2020] [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] [Indexed: 12/11/2022]
Abstract
Prostaglandins are critical lipid mediators involved in the wound healing response, with prostaglandin E2 (PGE2) being the most complex and exhibiting the most diverse physiological outputs. PGE2 signals via four G protein-coupled receptors, termed EP-receptors 1-4 that induce distinct signaling pathways upon activation and lead to an array of different outputs. Recent studies examining the role of PGE2 and EP receptor signaling in wound healing following various forms of tissue damage are discussed in this review.
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Affiliation(s)
- Kristy E Gilman
- Department of Nutritional Sciences, the University of Arizona, Tucson, Arizona
| | - Kirsten H Limesand
- Department of Nutritional Sciences, the University of Arizona, Tucson, Arizona
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26
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Ma C, Guo H, Chang H, Huang S, Jiang S, Huo D, Zhang J, Zhu X. The effects of exopolysaccharides and exopolysaccharide-producing Lactobacillus on the intestinal microbiome of zebrafish (Danio rerio). BMC Microbiol 2020; 20:300. [PMID: 33023493 PMCID: PMC7539446 DOI: 10.1186/s12866-020-01990-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 09/30/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Numerous studies have reported the health-promoting effects of exopolysaccharides (EPSs) in in vitro models; however, a functional evaluation of EPSs will provide additional knowledge of EPS-microbe interactions by in vivo intestinal microbial model. In the present study, high-throughput amplicon sequencing, short-chain fatty acid (SCFAs) and intestinal inflammation evaluation were performed to explore the potential benefits of exopolysaccharides (EPSs) and EPS-producing Lactobacillus (HNUB20 group) using the healthy zebrafish (Danio rerio) model. RESULTS The results based on microbial taxonomic analysis revealed that the abundance of four genera, Ochrobactrum, Sediminibacterium, Sphingomonas and Sphingobium, were increased in the control group in comparison to HNUB20 group. Pelomonas spp. levels were significantly higher and that of the genera Lactobacillus and Brachybacterium were significantly decreased in EPS group compared with control group. PICRUSt based functional prediction of gut microbiota metabolic pathways indicated that significantly lower abundance was found for transcription, and membrane transport, whereas folding, sorting and degradation and energy metabolism had significantly higher abundance after HNUB20 treatment. Two metabolic pathways, including metabolism and endocrine functions, were more abundant in the EPS group than control group. Similar to the HNUB20 group, transcription was also decreased in the EPS group compared with the control group. However, SCFAs and immune indexes indicated EPS and HNUB20 performed limited efficacy in the healthy zebrafish. CONCLUSIONS The present intestinal microbial model-based study indicated that EPSs and high-yield EPS-producing Lactobacillus can shake the structure of intestinal microbiota, but cannot change SCFAs presence and intestinal inflammation.
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Affiliation(s)
- Chenchen Ma
- College of Food Science and Engineering, School of Life and Pharmaceutical Sciences, Hainan University, Haikou, 570228, Hainan, P. R. China
| | - Hongyang Guo
- College of Food Science and Engineering, School of Life and Pharmaceutical Sciences, Hainan University, Haikou, 570228, Hainan, P. R. China
- Key Laboratory of Tropical Biological Resources, Ministry of Education, Hainan University, Haikou, 570228, Hainan, P. R. China
| | - Haibo Chang
- College of Food Science and Engineering, School of Life and Pharmaceutical Sciences, Hainan University, Haikou, 570228, Hainan, P. R. China
| | - Shi Huang
- Single-Cell Center, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, Shandong, People's Republic of China
| | - Shuaiming Jiang
- College of Food Science and Engineering, School of Life and Pharmaceutical Sciences, Hainan University, Haikou, 570228, Hainan, P. R. China
| | - Dongxue Huo
- College of Food Science and Engineering, School of Life and Pharmaceutical Sciences, Hainan University, Haikou, 570228, Hainan, P. R. China
| | - Jiachao Zhang
- College of Food Science and Engineering, School of Life and Pharmaceutical Sciences, Hainan University, Haikou, 570228, Hainan, P. R. China.
| | - Xiaopeng Zhu
- College of Food Science and Engineering, School of Life and Pharmaceutical Sciences, Hainan University, Haikou, 570228, Hainan, P. R. China.
- Key Laboratory of Tropical Biological Resources, Ministry of Education, Hainan University, Haikou, 570228, Hainan, P. R. China.
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Chuang LS. Labs in the time of COVID: an early-career scientist's view. Dis Model Mech 2020; 13:13/6/dmm046151. [PMID: 32764155 PMCID: PMC7328167 DOI: 10.1242/dmm.046151] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The outbreak of COVID-19 has stalled both the basic, clinical and non-COVID medical research. The scientific community has shown extraordinary flexibility and resilience in responding to the pandemic. However, funding restructuring, risk of infection, cancelation of scientific conferences and delayed experiments have already proven detrimental to the career opportunities of early-career scientists. Moreover, school closures and a lack of systematic support for childcare have been additional challenges for early- and mid-career researchers who have young children. This Editorial describes an early-career researcher's experience and highlights how after efficiently contributing to ‘flattening the curve’ of COVID-19 infections, the research community has an opportunity for growth and re-structuring. Summary: The COVID-19 outbreak has created a global health crisis that is profoundly affecting early-career scientists. This Editorial describes an early-career researcher's experience and the professional and personal challenges during the pandemic.
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Affiliation(s)
- Ling-Shiang Chuang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA .,The Charles Bronfman Institute for Personalized Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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28
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First person – Ling-shiang Chuang. Dis Model Mech 2019. [PMCID: PMC6737957 DOI: 10.1242/dmm.041624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
First Person is a series of interviews with the first authors of a selection of papers published in Disease Models & Mechanisms (DMM), helping early-career researchers promote themselves alongside their papers. Ling-shiang (Felix) Chuang is first author on ‘Zebrafish modeling of intestinal injury, bacterial exposures and medications defines epithelial in vivo responses relevant to human inflammatory bowel disease’, published in DMM. Ling-shiang is an instructor in the lab of Judy Cho at Icahn School of Medicine at Mount Sinai, New York, USA, investigating how to establish human genetic-driven personalized drug treatments for inflammatory bowel disease (IBD) by using zebrafish as a screening model.
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