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Feng Y, Zhou C, Zhao F, Ma T, Xiao Y, Peng K, Xia R. ZEB2 alleviates Hirschsprung's-associated enterocolitis by promoting the proliferation and differentiation of enteric neural precursor cells via the Notch-1/Jagged-2 pathway. Gene 2024; 912:148365. [PMID: 38485033 DOI: 10.1016/j.gene.2024.148365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/20/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND Hirschsprung's-associated enterocolitis (HAEC) is a prevalent complication of Hirschsprung's disease (HSCR). Zinc finger E-box binding homeobox 2 (ZEB2) and Notch-1/Jagged-2 are dysregulated in HSCR, but their role in HAEC progression remains poorly understood. We aimed to explore the role and underlying mechanism of enteric neural precursor cells (ENPCs) and the ZEB2/Notch-1/Jagged-2 pathway in HAEC development. METHODS Colon tissues were collected from HSCR and HAEC patients. ENPCs were isolated from the HAEC group and stimulated by lipopolysaccharide (LPS). The expressions of ZEB2/Notch-1/Jagged-2 were measured using RT-qPCR and Western blot. Immunofluorescence and cell counting kit-8 assays were performed to assess the differentiation and proliferation of ENPCs. Inflammatory factors were measured by ELISA kits. Co-immunoprecipitation and bioinformatic analysis were used to explore the interaction between ZEB2 and Notch-1. Small interfering RNA and overexpression vectors were used to investigate the role and mechanism of ZEB2 and Notch-1 in regulating ENPCs' proliferation and differentiation during HAEC progression. RESULTS We observed increased LPS in the colon tissues of HAEC, with downregulated ZEB2 expression and upregulated Notch-1/Jagged-2 expression. ZEB2 interacts with Notch-1. LPS treatment downregulated ZEB2 expression, upregulated Notch-1/Jagged-2 expression, and induced proliferation and differentiation disorders in ENPCs, which were reversed by the knockdown of Notch-1. Furthermore, overexpression of ZEB2 inhibited Notch-1/Jagged-2 signaling and ameliorated inflammation and dysfunction in LPS-induced ENPCs. Notch-1 overexpression enhanced LPS-induced dysfunction, but this effect was antagonized by the overexpression of ZEB2. CONCLUSION Overexpression of ZEB2 ameliorates LPS-induced ENPCs' dysfunction via the Notch-1/Jagged-2 pathway, thus playing a role in HAEC.
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Affiliation(s)
- Yong Feng
- Department of Fetal and Neonatal Surgery, Hunan Children's Hospital, Changsha 410007, China
| | - Chonggao Zhou
- Department of Fetal and Neonatal Surgery, Hunan Children's Hospital, Changsha 410007, China
| | - Fan Zhao
- Department of Fetal and Neonatal Surgery, Hunan Children's Hospital, Changsha 410007, China
| | - Tidong Ma
- Department of Fetal and Neonatal Surgery, Hunan Children's Hospital, Changsha 410007, China
| | - Yong Xiao
- Department of Fetal and Neonatal Surgery, Hunan Children's Hospital, Changsha 410007, China
| | - Kun Peng
- Department of Fetal and Neonatal Surgery, Hunan Children's Hospital, Changsha 410007, China
| | - Renpeng Xia
- Department of Fetal and Neonatal Surgery, Hunan Children's Hospital, Changsha 410007, China.
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Manna S, Karmakar S, Sen O, Sinha P, Jana S, Jana S. Recent updates on guar gum derivatives in colon specific drug delivery. Carbohydr Polym 2024; 334:122009. [PMID: 38553200 DOI: 10.1016/j.carbpol.2024.122009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 04/02/2024]
Abstract
Colon specific delivery of therapeutics have gained much attention of pharmaceutical researchers in the recent past. Colonic specific targeting of drugs is used not only for facilitating absorption of protein or peptide drugs, but also localization of therapeutic agents in colon to treat several colonic disorders. Among various biopolymers, guar gum (GG) exhibits pH dependent swelling, which allows colon specific release of drug. GG also shows microbial degradation in the colonic environment which makes it a suitable excipient for developing colon specific drug delivery systems. The uncontrolled swelling and hydration of GG can be controlled by structural modification or by grafting with another polymeric moiety. Several graft copolymerized guar gum derivatives are investigated for colon targeting of drugs. The efficacy of various guar gum derivatives are evaluated for colon specific delivery of drugs. The reviewed literature evidenced the potentiality of guar gum in localizing drugs in the colonic environment. This review focuses on the synthesis of several guar gum derivatives and their application in developing various colon specific drug delivery systems including matrix tablets, coated formulations, nano or microparticulate delivery systems and hydrogels.
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Affiliation(s)
- Sreejan Manna
- Department of Pharmaceutical Technology, Brainware University, Barasat, Kolkata, West Bengal 700125, India
| | - Sandip Karmakar
- Department of Pharmacy, Sanaka Educational Trust's Group of Institutions, Durgapur, West Bengal 713212, India
| | - Olivia Sen
- Department of Pharmaceutical Technology, Brainware University, Barasat, Kolkata, West Bengal 700125, India
| | - Puspita Sinha
- Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Subrata Jana
- Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Sougata Jana
- Department of Health and Family Welfare, Directorate of Health Services, Kolkata-700091, West Bengal, India.
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Feng M, Zhou Y, Gao Z, Huang W, Xie W, Xie W, Liu Z, Tang S, Xiong X, Chen Y, Zhou X, Liu C. Timosaponin BⅡ reduces colonic inflammation and alleviates DSS-induced ulcerative colitis by inhibiting NLRP3. J Ethnopharmacol 2024; 325:117885. [PMID: 38331123 DOI: 10.1016/j.jep.2024.117885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/25/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Timosaponin BⅡ (TBⅡ) is one of the main active components of the traditional Chinese medicine Anemarrhena asphodeloides, and it is a steroidal saponin with various pharmacological activities such as anti-oxidation, anti-inflammatory and anti-apoptosis. However, its role in acute ulcerative colitis remains unexplored thus far. AIM OF THE STUDY This study aims to investigate the protective effect of TBⅡ against dextran sulfate sodium (DSS)-induced ulcerative colitis in mice and elucidate its underlying mechanisms. METHODS Wild-type (WT) and NLRP3 knockout (NLRP3-/-) mice were applied to evaluate the protective effect of TBⅡ in DSS-induced mice colitis. Pharmacological inhibition of NLRP3 or adenovirus-mediated NLRP3 overexpression in bone marrow-derived macrophages (BMDM) from WT mice and colonic epithelial HCoEpiC cells was used to assess the role of TBⅡ in LPS + ATP-induced cell model. RNA-seq, ELISA, western blots, immunofluorescence staining, and expression analysis by qPCR were performed to examine the alterations of colonic NLRP3 expression in DSS-induced colon tissues and LPS + ATP-induced cells, respectively. RESULTS In mice with DSS-induced ulcerative colitis, TBⅡ treatment attenuated clinical symptoms, repaired the intestinal mucosal barrier, reduced inflammatory infiltration, and alleviated colonic inflammation. RNA-seq analysis and protein expression levels demonstrated that TBⅡ could prominently inhibit NLRP3 signaling. TBⅡ-mediated NLRP3 inhibition was associated with alleviating intestinal permeability and inflammatory response via the blockage of communication between epithelial cells and macrophages, probably in an NLRP3 inhibition mechanism. However, pharmacological inhibition of NLRP3 by MCC950 or Ad-NLRP3 mediated NLRP3 overexpression significantly impaired the TBⅡ-mediated anti-inflammatory effect. Mechanistically, TBⅡ-mediated NLRP3 inhibition may be partly associated with the suppression of NF-κB, a master pro-inflammatory factor for transcriptional regulation of NLRP3 expression in the priming step. Moreover, co-treatment TBⅡ with NF-κB inhibitor BAY11-7082 partly impaired TBⅡ-mediated NLRP3 inhibition, and consequently affected the IL-1β mature and secretion. Importantly, TBⅡ-mediated amelioration was not further enhanced in NLPR3-/- mice. CONCLUSION TBⅡ exerted a prominent protective effect against DSS-induced colitis via regulation of alleviation of intestinal permeability and inflammatory response via the blockage of crosstalk between epithelial cells and macrophages in an NLRP3-mediated inhibitory mechanism. These beneficial effects could make TBⅡ a promising drug for relieving colitis.
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Affiliation(s)
- Meng Feng
- State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Yingya Zhou
- State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Zhenyu Gao
- State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Wenni Huang
- State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Wenmin Xie
- State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Wanlin Xie
- State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Zhenyv Liu
- State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Shengzhao Tang
- State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Xuejun Xiong
- State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Yijun Chen
- State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China.
| | - Xinxin Zhou
- State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China.
| | - Changhui Liu
- State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China.
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Caetano-Silva ME, Rund L, Vailati-Riboni M, Matt S, Soto-Diaz K, Beever J, Allen JM, Woods JA, Steelman AJ, Johnson RW. The emergence of inflammatory microglia during gut inflammation is not affected by FFAR2 expression in intestinal epithelial cells or peripheral myeloid cells. Brain Behav Immun 2024; 118:423-436. [PMID: 38467381 DOI: 10.1016/j.bbi.2024.03.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 02/14/2024] [Accepted: 03/08/2024] [Indexed: 03/13/2024] Open
Abstract
Gut inflammation can trigger neuroinflammation and is linked to mood disorders. Microbiota-derived short-chain fatty acids (SCFAs) can modulate microglia, yet the mechanism remains elusive. Since microglia do not express free-fatty acid receptor (FFAR)2, but intestinal epithelial cells (IEC) and peripheral myeloid cells do, we hypothesized that SCFA-mediated FFAR2 activation within the gut or peripheral myeloid cells may impact microglia inflammation. To test this hypothesis, we developed a tamoxifen-inducible conditional knockout mouse model targeting FFAR2 exclusively on IEC and induced intestinal inflammation with dextran sodium sulfate (DSS), a well-established colitis model. Given FFAR2's high expression in myeloid cells, we also investigated its role by selectively deleting it in these populations of cells. In an initial study, male and female wild-type mice received 0 or 2% DSS for 5d and microglia were isolated 3d later to assess inflammatory status. DSS induced intestinal inflammation and upregulated inflammatory gene expression in microglia, indicating inflammatory signaling via the gut-brain axis. Despite the lack of significant effects of sex in the intestinal phenotype, male mice showed higher microglial inflammatory response than females. Subsequent studies using FFAR2 knockout models revealed that FFAR2 expression in IECs or immune myeloid cells did not affect DSS-induced colonic pathology (i.e. clinical and histological scores and colon length), or colonic expression of inflammatory genes. However, FFAR2 knockout led to an upregulation of several microglial inflammatory genes in control mice and downregulation in DSS-treated mice, suggesting that FFAR2 may constrain neuroinflammatory gene expression under healthy homeostatic conditions but may permit it during intestinal inflammation. No interactions with sex were observed, suggesting sex does not play a role on FFAR2 potential function in gut-brain communication in the context of colitis. To evaluate the role of FFAR2 activated by microbiota-derived SCFAs, we employed the same knockout and DSS models adding fermentable dietary fiber (0 or 2.5% inulin for 8 wks). Despite no genotype or fiber main effects, contrary to our hypothesis, inulin feeding augmented DSS-induced inflammation and signs of colitis, suggesting context-dependent effects of fiber. These findings highlight microglial involvement in colitis-associated neuroinflammation and advance our understanding of FFAR2's role in the gut-brain axis. Although not integral, we observed that the role of FFAR2 differs between homeostatic and inflammatory conditions, underscoring the need to consider different inflammatory conditions and disease contexts when investigating the role of FFAR2 and SCFAs in the gut-brain axis.
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Affiliation(s)
- Maria Elisa Caetano-Silva
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Laurie Rund
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Mario Vailati-Riboni
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Stephanie Matt
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Katiria Soto-Diaz
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Jon Beever
- Institute of Agriculture, University of Tennessee, Knoxville, TN, USA
| | - Jacob M Allen
- Department of Healh and Kinesiology, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Jeffrey A Woods
- Department of Healh and Kinesiology, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Andrew J Steelman
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Rodney W Johnson
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
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King AJ, Chang L, Li Q, Liu L, Zhu Y, Pasricha PJ, Wang J, Siegel M, Caldwell JS, Edelstein S, Rosenbaum DP, Kozuka K. NHE3 inhibitor tenapanor maintains intestinal barrier function, decreases visceral hypersensitivity, and attenuates TRPV1 signaling in colonic sensory neurons. Am J Physiol Gastrointest Liver Physiol 2024; 326:G543-G554. [PMID: 38252683 DOI: 10.1152/ajpgi.00233.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/04/2024] [Accepted: 01/17/2024] [Indexed: 01/24/2024]
Abstract
The pathogenesis of irritable bowel syndrome (IBS) is multifactorial, characterized in part by increased intestinal permeability, and visceral hypersensitivity. Increased permeability is associated with IBS severity and abdominal pain. Tenapanor is FDA-approved for the treatment of IBS with constipation (IBS-C) and has demonstrated improvements in bowel motility and a reduction in IBS-related pain; however, the mechanism by which tenapanor mediates these functions remains unclear. Here, the effects of tenapanor on colonic pain signaling and intestinal permeability were assessed through behavioral, electrophysiological, and cell culture experiments. Intestinal motility studies in rats and humans demonstrated that tenapanor increased luminal sodium and water retention and gastrointestinal transit versus placebo. A significantly reduced visceral motor reflex (VMR) to colonic distension was observed with tenapanor treatment versus vehicle in two rat models of visceral hypersensitivity (neonatal acetic acid sensitization and partial restraint stress; both P < 0.05), returning VMR responses to that of nonsensitized controls. Whole cell voltage patch-clamp recordings of retrogradely labeled colonic dorsal root ganglia (DRG) neurons from sensitized rats found that tenapanor significantly reduced DRG neuron hyperexcitability to capsaicin versus vehicle (P < 0.05), an effect not mediated by epithelial cell secretions. Tenapanor also attenuated increases in intestinal permeability in human colon monolayer cultures caused by incubation with proinflammatory cytokines (P < 0.001) or fecal supernatants from patients with IBS-C (P < 0.005). These results support a model in which tenapanor reduces IBS-related pain by strengthening the intestinal barrier, thereby decreasing permeability to macromolecules and antigens and reducing DRG-mediated pain signaling.NEW & NOTEWORTHY A series of nonclinical experiments support the theory that tenapanor inhibits IBS-C-related pain by strengthening the intestinal barrier. Tenapanor treatment reduced visceral motor responses to nonsensitized levels in two rat models of hypersensitivity and reduced responses to capsaicin in sensitized colonic nociceptive dorsal root ganglia neurons. Intestinal permeability experiments in human colon monolayer cultures found that tenapanor attenuates increases in permeability induced by either inflammatory cytokines or fecal supernatants from patients with IBS-C.
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Affiliation(s)
- Andrew J King
- Ardelyx, Inc., Waltham, Massachusetts, United States
| | - Lin Chang
- Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, United States
| | - Qian Li
- Division of Gastroenterology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Liansheng Liu
- Division of Gastroenterology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Yaohui Zhu
- Division of Gastroenterology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Pankaj J Pasricha
- Division of Gastroenterology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Ji Wang
- Ardelyx, Inc., Waltham, Massachusetts, United States
| | | | | | | | | | - Kenji Kozuka
- Ardelyx, Inc., Waltham, Massachusetts, United States
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Zhao S, Lau R, Chen MH. Influence of chain length on the colonic fermentation of xylooligosaccharides. Carbohydr Polym 2024; 331:121869. [PMID: 38388037 DOI: 10.1016/j.carbpol.2024.121869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/12/2024] [Accepted: 01/23/2024] [Indexed: 02/24/2024]
Abstract
Xylooligosaccharides (XOS) have been employed as prebiotics containing oligomers of varying sizes or molecular ratios. XOS with a low degree of polymerization (DP) has been demonstrated to have high prebiotic potential. However, there is limited information regarding the specific chain length of XOS required to elicit distinct responses in the gut microbiota. In this study, we aimed to explore whether variations in XOS DP could alter the fate of colonic fermentation. Five XOS fractions (BWXFs) with DP ranges of >40, 20-40, 10-20, 5-10, and 2-4 were prepared by beechwood xylan autohydrolysis and tested on human gut microbiota. Extracellular XOS degradation was observed for molecules with a DP exceeding 5. BWXF treatments altered the microbial community structures, and substrate size-dependent effects on the microbial composition and metabolic outputs were observed. Bacteroidaceae were specifically enriched by xylan. Lachnospiraceae were particularly stimulated by XOS with a DP of 20-40 and 2-4. Bifidobacteriaceae were notably enriched by XOS with a DP of 5-20. High butyrate yields were obtained from cultures containing long-chain BWXFs. Microbiota responses differed with XOS DP composition changes, and microbial competition with XOS with a DP of 2-4 requires further exploration.
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Affiliation(s)
- Sainan Zhao
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Block N1.2, 62 Nanyang Drive, 637459, Singapore.
| | - Raymond Lau
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Block N1.2, 62 Nanyang Drive, 637459, Singapore.
| | - Ming-Hsu Chen
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Block N1.2, 62 Nanyang Drive, 637459, Singapore; Institute of Food Science and Technology, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan.
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Wang K, Liu Y, Li H, Liang X, Hao M, Yuan D, Ding L. Claudin-7 is essential for the maintenance of colonic stem cell homoeostasis via the modulation of Wnt/Notch signalling. Cell Death Dis 2024; 15:284. [PMID: 38654000 DOI: 10.1038/s41419-024-06658-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 04/02/2024] [Accepted: 04/08/2024] [Indexed: 04/25/2024]
Abstract
Intestinal stem cells (ISCs) play a crucial role in the continuous self-renewal and recovery of the intestinal epithelium. In previous studies, we have revealed that the specific absence of Claudin-7 (Cldn-7) in intestinal epithelial cells (IECs) can lead to the development of spontaneous colitis. However, the mechanisms by which Cldn-7 maintains homeostasis in the colonic epithelium remain unclear. Therefore, in the present study, we used IEC- and ISC-specific Cldn-7 knockout mice to investigate the regulatory effects of Cldn-7 on colonic Lgr5+ stem cells in the mediation of colonic epithelial injury and repair under physiological and inflammatory conditions. Notably, our findings reveal that Cldn-7 deletion disrupts the self-renewal and differentiation of colonic stem cells alongside the formation of colonic organoids in vitro. Additionally, these Cldn-7 knockout models exhibited heightened susceptibility to experimental colitis, limited epithelial repair and regeneration, and increased differentiation toward the secretory lineage. Mechanistically, we also established that Cldn-7 facilitates the proliferation, differentiation, and organoid formation of Lgr5+ stem cells through the maintenance of Wnt and Notch signalling pathways in the colonic epithelium. Overall, our study provides new insights into the maintenance of ISC function and colonic epithelial homoeostasis.
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Affiliation(s)
- Kun Wang
- Gastrointestinal Oncology Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yin Liu
- Gastrointestinal Oncology Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Huimin Li
- Gastrointestinal Oncology Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Xiaoqing Liang
- Gastrointestinal Oncology Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Mengdi Hao
- Gastrointestinal Oncology Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Dajin Yuan
- Gastrointestinal Oncology Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Lei Ding
- Gastrointestinal Oncology Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China.
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Xu Y, Zhou C, Zong M, Zhu J, Guo X, Sun Z. High-protein high-konjac glucomannan diets changed glucose and lipid metabolism by modulating colonic microflora and bile acid profiles in healthy mouse models. Food Funct 2024; 15:4446-4461. [PMID: 38563504 DOI: 10.1039/d4fo00159a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
High protein and fiber diets are becoming increasingly popular for weight loss; however, the benefits or risks of high protein and fiber diets with a normal calorie level for healthy individuals still need to be elucidated. In this study, we explored the role and mechanisms of long-term high protein and/or konjac glucomannan diets on the metabolic health of healthy mouse models. We found that high konjac glucomannan contents improved the glucose tolerance of mice and both high protein and high konjac glucomannan contents improved the serum lipid profile but increased the TNF-α levels. In the liver, high dietary protein contents reduced the expression of the FASN gene related to fatty acid synthesis. Interactions of dietary protein and fiber were shown in the signaling pathways related to lipid and glucose metabolism of the liver and the inflammatory status of the colon, wherein the high protein and high konjac glucomannan diet downregulated the expression of the SREBF1 and FXR genes in the liver and downregulated the expression of TNF-α genes in the colon compared to the high protein diet. High konjac glucomannan contents reduced the colonic secondary bile acid levels including DCA and LCA; this was largely associated with the changed microbiota profile and also contributed to improved lipid and glucose homeostasis. In conclusion, high protein diets improved lipid homeostasis and were not a risk to metabolic health, while high fiber diets improved glucose and lipid homeostasis by modulating colonic microbiota and bile acid profiles, and a high protein diet supplemented with konjac glucomannan might improve hepatic lipid homeostasis and colonic inflammation in healthy mouse models through long-term intervention.
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Affiliation(s)
- Yetong Xu
- Laboratory for Bio-Feed and Molecular Nutrition, Department of Animal Science and Technology, Southwest University, Chongqing 400715, P. R. China.
| | - Chengyu Zhou
- Laboratory for Bio-Feed and Molecular Nutrition, Department of Animal Science and Technology, Southwest University, Chongqing 400715, P. R. China.
| | - Minyue Zong
- Laboratory for Bio-Feed and Molecular Nutrition, Department of Animal Science and Technology, Southwest University, Chongqing 400715, P. R. China.
| | - Junwei Zhu
- Laboratory for Bio-Feed and Molecular Nutrition, Department of Animal Science and Technology, Southwest University, Chongqing 400715, P. R. China.
| | - Xutong Guo
- Laboratory for Bio-Feed and Molecular Nutrition, Department of Animal Science and Technology, Southwest University, Chongqing 400715, P. R. China.
| | - Zhihong Sun
- Laboratory for Bio-Feed and Molecular Nutrition, Department of Animal Science and Technology, Southwest University, Chongqing 400715, P. R. China.
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Lin Z, Dai W, Hu S, Chen D, Yan H, Zeng L, Lin Z. Stored white tea ameliorates DSS-induced ulcerative colitis in mice by modulating the composition of the gut microbiota and intestinal metabolites. Food Funct 2024; 15:4262-4275. [PMID: 38526548 DOI: 10.1039/d3fo05176e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Changes in the chemical composition of white tea during storage have been studied extensively; however, whether such chemical changes impact the efficacy of white tea in ameliorating colitis remains unclear. In this study, we compared the effects of new (2021 WP) and 10-year-old (2011 WP) white tea on 3% dextrose sodium sulfate (DSS)-induced ulcerative colitis in mice by gavaging mice with the extracts at 200 mg kg-1 day-1. Chemical composition analysis showed that the levels of 50 compounds, such as flavanols, dimeric catechins, and amino acids, were significantly lower in the 2011 WP extract than in the 2021 WP extract, whereas the contents of 21 compounds, such as N-ethyl-2-pyrrolidinone-substituted flavan-3-ols, theobromine, and (-)-epigallocatechin-3-(3''-O-methyl) gallate, were significantly higher. Results of the animal experiments showed that 2011 WP ameliorated the pathological symptoms of colitis, which was superior to the activity of 2021 WP, and this effect was likely enhanced based on the decreasing of the relative abundance of the g_bacteroides and g_Escherichia-Shigella flora in mice with colitis and promoting the conversion of primary bile acids to secondary bile acids in the colon. These results will facilitate the development of novel functional products from white tea.
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Affiliation(s)
- Zhiyuan Lin
- Tea Research Institute, Chinese Academy of Agricultural Sciences, No. 9 Meiling South Road, West Lake District, Hangzhou, Zhejiang 310008, China.
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China.
| | - Weidong Dai
- Tea Research Institute, Chinese Academy of Agricultural Sciences, No. 9 Meiling South Road, West Lake District, Hangzhou, Zhejiang 310008, China.
| | - Shanshan Hu
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China.
| | - Dan Chen
- Tea Research Institute, Chinese Academy of Agricultural Sciences, No. 9 Meiling South Road, West Lake District, Hangzhou, Zhejiang 310008, China.
| | - Han Yan
- Tea Research Institute, Chinese Academy of Agricultural Sciences, No. 9 Meiling South Road, West Lake District, Hangzhou, Zhejiang 310008, China.
| | - Liang Zeng
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China.
| | - Zhi Lin
- Tea Research Institute, Chinese Academy of Agricultural Sciences, No. 9 Meiling South Road, West Lake District, Hangzhou, Zhejiang 310008, China.
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10
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Li Q, Li J, Yin L, Huang J, Liu X, Shi J, Geng Z, Song X, Wang L, Wang Y, Zhang X, Zuo L, Hu J. Sophoricoside improved Crohn's disease-like colitis by inhibiting intestinal epithelial cell apoptosis through PI3K/AKT signaling. Int Immunopharmacol 2024; 131:111886. [PMID: 38493691 DOI: 10.1016/j.intimp.2024.111886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/05/2024] [Accepted: 03/13/2024] [Indexed: 03/19/2024]
Abstract
BACKGROUND AND AIMS Increased apoptosis of intestinal epithelial cells (IECs) is a significant cause of intestinal barrier dysfunction in Crohn's disease (CD). Sophoricoside (SOP) is an isoflavone glycoside known for its anti-apoptotic properties. The aim of this study was to investigate the effects of SOP on mice with CD-like colitis and to understand the underlying mechanisms. METHODS Mice treated with 2,4,6-trinitrobenzene sulfonic acid (TNBS) were used to examine the therapeutic effect of SOP on CD-like colitis and intestinal barrier damage. To further explore SOP's impact on IECs apoptosis and intestinal barrier protection, an in vitro colonic organoid apoptosis model induced by TNF-α was utilized. Network pharmacology was employed to predict the relevant pathways and molecular processes associated with SOP in the treatment of CD. RESULTS Treatment with SOP significantly improved colitis symptoms in TNBS mice, as demonstrated by reductions in the Disease Activity Index (DAI), weight loss, colon shortening, macroscopic scores, colonic tissue inflammatory scores, and the expression of pro-inflammatory factors. Our experiments confirmed that SOP protects the intestinal barrier by counteracting IECs apoptosis. Additionally, this study established that SOP reduced IECs apoptosis by inhibiting the PI3K/AKT signaling pathway. CONCLUSIONS SOP can reduce IECs apoptosis through the inhibition of the PI3K/AKT signaling pathway, thereby protecting the intestinal barrier. This study is the first to illustrate how SOP ameliorates colitis and protects the intestinal barrier, suggesting SOP has potential clinical application in treating CD.
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Affiliation(s)
- Qingqing Li
- Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China; School of Laboratory Medicine, Bengbu Medical University, Bengbu, Anhui, China
| | - Jing Li
- Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China; Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, Anhui, China; Inflammatory Bowel Disease Research Center, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China
| | - Lixia Yin
- Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China; School of Laboratory Medicine, Bengbu Medical University, Bengbu, Anhui, China
| | - Ju Huang
- Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China; School of Laboratory Medicine, Bengbu Medical University, Bengbu, Anhui, China
| | - Xinyue Liu
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, Anhui, China
| | - Jinran Shi
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, Anhui, China
| | - Zhijun Geng
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, Anhui, China; Inflammatory Bowel Disease Research Center, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China; Department of Central Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China
| | - Xue Song
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, Anhui, China; Inflammatory Bowel Disease Research Center, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China; Department of Central Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China
| | - Lian Wang
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, Anhui, China; Inflammatory Bowel Disease Research Center, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China; Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China
| | - Yueyue Wang
- Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China; Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, Anhui, China; Inflammatory Bowel Disease Research Center, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China
| | - Xiaofeng Zhang
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, Anhui, China; Inflammatory Bowel Disease Research Center, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China; Department of Central Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China
| | - Lugen Zuo
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, Anhui, China; Inflammatory Bowel Disease Research Center, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China; Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China
| | - Jianguo Hu
- Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China; Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, Anhui, China; Inflammatory Bowel Disease Research Center, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China.
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11
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Gaur P, Rajendran Y, Srivastava B, Markandey M, Fishbain-Yoskovitz V, Mohapatra G, Suhail A, Chaudhary S, Tyagi S, Yadav SC, Pandey AK, Merbl Y, Bajaj A, Ahuja V, Srikanth C. Rab7-dependent regulation of goblet cell protein CLCA1 modulates gastrointestinal homeostasis. eLife 2024; 12:RP89776. [PMID: 38593125 PMCID: PMC11003743 DOI: 10.7554/elife.89776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024] Open
Abstract
Inflammation in ulcerative colitis is typically restricted to the mucosal layer of distal gut. Disrupted mucus barrier, coupled with microbial dysbiosis, has been reported to occur prior to the onset of inflammation. Here, we show the involvement of vesicular trafficking protein Rab7 in regulating the colonic mucus system. We identified a lowered Rab7 expression in goblet cells of colon during human and murine colitis. In vivo Rab7 knocked down mice (Rab7KD) displayed a compromised mucus layer, increased microbial permeability, and depleted gut microbiota with enhanced susceptibility to dextran sodium-sulfate induced colitis. These abnormalities emerged owing to altered mucus composition, as revealed by mucus proteomics, with increased expression of mucin protease chloride channel accessory 1 (CLCA1). Mechanistically, Rab7 maintained optimal CLCA1 levels by controlling its lysosomal degradation, a process that was dysregulated during colitis. Overall, our work establishes a role for Rab7-dependent control of CLCA1 secretion required for maintaining mucosal homeostasis.
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Affiliation(s)
- Preksha Gaur
- Laboratory of Gut Inflammation and Infection Biology, Regional Centre for BiotechnologyFaridabadIndia
| | - Yesheswini Rajendran
- Laboratory of Gut Inflammation and Infection Biology, Regional Centre for BiotechnologyFaridabadIndia
| | | | - Manasvini Markandey
- Department of Gastroenterology, All India Institute of Medical SciencesDelhiIndia
| | | | | | - Aamir Suhail
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women’s Hospital, Massachusetts General Hospital and Harvard Medical SchoolBostonUnited States
| | - Shikha Chaudhary
- Department of Anatomy, All India Institute of Medical SciencesNew DelhiIndia
| | - Shaifali Tyagi
- Vaccine and Infectious Disease Research Center, Translational Health Science and Technology InstituteFaridabadIndia
| | | | - Amit Kumar Pandey
- Vaccine and Infectious Disease Research Center, Translational Health Science and Technology InstituteFaridabadIndia
| | - Yifat Merbl
- Department of Immunology, Weizmann Institute of ScienceRehovotIsrael
| | - Avinash Bajaj
- Laboratory of Gut Inflammation and Infection Biology, Regional Centre for BiotechnologyFaridabadIndia
| | - Vineet Ahuja
- Department of Gastroenterology, All India Institute of Medical SciencesDelhiIndia
| | - Chittur Srikanth
- Laboratory of Gut Inflammation and Infection Biology, Regional Centre for BiotechnologyFaridabadIndia
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12
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Dokoshi T, Chen Y, Cavagnero KJ, Rahman G, Hakim D, Brinton S, Schwarz H, Brown EA, O'Neill A, Nakamura Y, Li F, Salzman NH, Knight R, Gallo RL. Dermal injury drives a skin to gut axis that disrupts the intestinal microbiome and intestinal immune homeostasis in mice. Nat Commun 2024; 15:3009. [PMID: 38589392 PMCID: PMC11001995 DOI: 10.1038/s41467-024-47072-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 03/20/2024] [Indexed: 04/10/2024] Open
Abstract
The composition of the microbial community in the intestine may influence the functions of distant organs such as the brain, lung, and skin. These microbes can promote disease or have beneficial functions, leading to the hypothesis that microbes in the gut explain the co-occurrence of intestinal and skin diseases. Here, we show that the reverse can occur, and that skin directly alters the gut microbiome. Disruption of the dermis by skin wounding or the digestion of dermal hyaluronan results in increased expression in the colon of the host defense genes Reg3 and Muc2, and skin wounding changes the composition and behavior of intestinal bacteria. Enhanced expression Reg3 and Muc2 is induced in vitro by exposure to hyaluronan released by these skin interventions. The change in the colon microbiome after skin wounding is functionally important as these bacteria penetrate the intestinal epithelium and enhance colitis from dextran sodium sulfate (DSS) as seen by the ability to rescue skin associated DSS colitis with oral antibiotics, in germ-free mice, and fecal microbiome transplantation to unwounded mice from mice with skin wounds. These observations provide direct evidence of a skin-gut axis by demonstrating that damage to the skin disrupts homeostasis in intestinal host defense and alters the gut microbiome.
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Affiliation(s)
- Tatsuya Dokoshi
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Yang Chen
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA
| | - Kellen J Cavagnero
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Gibraan Rahman
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA
| | - Daniel Hakim
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA
| | - Samantha Brinton
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Hana Schwarz
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Elizabeth A Brown
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Alan O'Neill
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Yoshiyuki Nakamura
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Fengwu Li
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Nita H Salzman
- Department of Pediatrics, Division of Gastroenterology and Center for Microbiome Research, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Rob Knight
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA
- Department of Computer Science & Engineering, University of California, San Diego, La Jolla, CA, USA
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, USA
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, USA
| | - Richard L Gallo
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA.
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13
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Mo C, Liu R, Yang Z, Ma A. Polysaccharide from Pleurotus tuber-regium mycelium improves DSS-induced colitis in mice by regulating inflammatory cytokines, oxidative stress and gut microbiota. Food Funct 2024; 15:3731-3743. [PMID: 38489162 DOI: 10.1039/d3fo05583c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2024]
Abstract
Pleurotus tuber-regium (PTR) has been proved to have obvious pharmacological properties. In this study, a polysaccharide was extracted from the mycelium of PTR and administered to DSS-induced colitis mice to clarify the protective effect and mechanism of the PTR polysaccharide (PTRP) on colitis. The results showed that PTRP significantly improved the clinical symptoms and intestinal tissue damage caused by colitis and inhibited the secretion of pro-inflammatory cytokines and myeloperoxidase activity, while the levels of oxidative stress factors in mice decreased and the antioxidant capacity increased. The 16S rRNA sequencing of the mouse cecum content showed that PTRP changed the composition of gut microbiota, and the diversity and abundance of beneficial bacteria increased. In addition, PTRP also enhanced the production of short-chain fatty acids by regulating gut microbiota. In conclusion, our study shows that PTRP has the potential to relieve IBD symptoms and protect intestinal function by regulating inflammatory cytokines, oxidative stress and gut microbiota.
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Affiliation(s)
- Cuiyuan Mo
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Ruofan Liu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Zhenhua Yang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Aimin Ma
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
- Key laboratory of Agro-Microbial Resources and Utilization, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China
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14
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Barnett AM, Mullaney JA, McNabb WC, Roy NC. Culture media and format alter cellular composition and barrier integrity of porcine colonoid-derived monolayers. Tissue Barriers 2024; 12:2222632. [PMID: 37340938 DOI: 10.1080/21688370.2023.2222632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 06/04/2023] [Indexed: 06/22/2023] Open
Abstract
Intestinal organoid technology has revolutionized our approach to in vitro cell culture due in part to their three-dimensional structures being more like the native tissue from which they were derived with respect to cellular composition and architecture. For this reason, organoids are becoming the new gold standard for undertaking intestinal epithelial cell research. Unfortunately, their otherwise advantageous three-dimensional geometry prevents easy access to the apical epithelium, which is a major limitation when studying interactions between dietary or microbial components and host tissues. To overcome this problem, we developed porcine colonoid-derived monolayers cultured on both permeable Transwell inserts and tissue culture treated polystyrene plates. We found that seeding density and culture format altered the expression of genes encoding markers of specific cell types (stem cells, colonocytes, goblets, and enteroendocrine cells), and barrier maturation (tight junctions). Additionally, we found that changes to the formulation of the culture medium altered the cellular composition of colonoids and of monolayers derived from them, resulting in cultures with an increasingly differentiated phenotype that was similar to that of their tissue of origin.
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Affiliation(s)
- Alicia M Barnett
- AgResearch Ltd, Grasslands Research Centre, Palmerston North, New Zealand
- Riddet Institute, Massey University, Palmerston North, New Zealand
| | - Jane A Mullaney
- AgResearch Ltd, Grasslands Research Centre, Palmerston North, New Zealand
- Riddet Institute, Massey University, Palmerston North, New Zealand
- Liggins Institute, The High-Value Nutrition National Science Challenge, Auckland, New Zealand
| | - Warren C McNabb
- Riddet Institute, Massey University, Palmerston North, New Zealand
- Liggins Institute, The High-Value Nutrition National Science Challenge, Auckland, New Zealand
| | - Nicole C Roy
- Riddet Institute, Massey University, Palmerston North, New Zealand
- Liggins Institute, The High-Value Nutrition National Science Challenge, Auckland, New Zealand
- Department of Nutrition, The University of Otago, Dunedin, New Zealand
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15
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Liu C, Qi X, Liu X, Sun Y, Mao K, Shen G, Ma Y, Li Q. Anti-inflammatory probiotics HF05 and HF06 synergistically alleviate ulcerative colitis and secondary liver injury. Food Funct 2024; 15:3765-3777. [PMID: 38506656 DOI: 10.1039/d3fo04419j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Given the limited efficacy and adverse effects associated with conventional drugs, probiotics are emerging as a promising therapeutic strategy for mitigating the chronic nature of ulcerative colitis (UC) and its consequential secondary liver injury (SLI). Limosilactobacillus fermentum HF06 and Lactiplatibacillus plantarum HF05 are strains we screened with excellent anti-inflammatory and probiotic properties in vitro. In this study, the intervention of HF06 and HF05 in combination (MIXL) was found to be more effective in alleviating intestinal inflammation and secondary liver injury in UC mice compared to supplementing with the two strains individually. Results demonstrated that MIXL effectively attenuated colon shortening and weight loss, downregulated the expression of pro-inflammatory cytokines TNF-α, IL-1β, and IL-6 mRNA in the intestines, mitigated SLI, and augmented the enzymatic activities of SOD, CAT, and GSH-Px in the liver. MIXL enhances the intestinal barrier in UC mice, regulates the structure and composition of the gut microbiota, promotes the abundance of Lactobacillus, and suppresses the abundance of bacteria associated with inflammation and liver injury, including Clostridium_Sensu_Stricto_1, Escherichia, Shigella, Enterococcus, Corynebacterium, Desulfovibrio, and norank_f__Oscillospiraceae. This study demonstrated the synergistic effect of HF06 and HF05, providing a reliable foundation for the alleviation of UC.
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Affiliation(s)
| | - Xiaofen Qi
- Harbin Institute of Technology, Harbin, China.
| | - Xiaolin Liu
- Harbin Institute of Technology, Harbin, China.
| | - Yue Sun
- Harbin Institute of Technology, Harbin, China.
| | - Kaidong Mao
- Jiangsu HOWYOU Biotechnology Co., Ltd, Qidong, China
| | - Guiqi Shen
- Jiangsu HOWYOU Biotechnology Co., Ltd, Qidong, China
| | - Ying Ma
- Harbin Institute of Technology, Harbin, China.
| | - Qingming Li
- New Hope Dairy Company Limited, China.
- Sichuan Engineering Laboratory for High-quality Dairy Product Preparation and Quality Control Technology, China
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16
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Gan Q, Song G, Fang W, Wang Y, Qi W. Fructose dose-dependently influences colon barrier function by regulation of some main physical, immune, and biological factors in rats. J Nutr Biochem 2024; 126:109582. [PMID: 38242179 DOI: 10.1016/j.jnutbio.2024.109582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 01/05/2024] [Accepted: 01/13/2024] [Indexed: 01/21/2024]
Abstract
Little is known about the effects of fructose on colonic function. Here, forty-eight 7-week-old male SD rats were randomly divided into four groups and given 0, 7.5%, 12.75%, and 35% fructose in diet for 8 weeks respectively to investigate the regulatory influence of fructose on colonic barrier function. The exact amount of fructose intake was tracked and recorded. We showed that fructose affects colonic barrier function in a dose-dependent manner. High-fructose at a dose of 1.69±0.23 g/kg/day could damage the physical barrier function of the colon by down-regulating expression of tight junction proteins (ZO-1 and occludin) and mucus layer biomarkers (MUC2 and TFF3). High fructose reduced sIgA and the anti-inflammatory cytokine (IL-10), induced abdominal fat accumulation and pro-inflammatory cytokines (IL-6 and IL-8), leading to colon inflammation and immune barrier dysfunction. In addition, high-fructose altered the biological barrier of the colon by decreasing the abundance of Blautia, Ruminococcus, and Lactobacillius, and increasing the abundance of Allobaculum at the genus level, leading to a reduction in short-chain fatty acids (SCFAs), amino acids, and carbohydrates, etc. Low fructose at a dose of 0.31±0.05 g/kg/day showed no adverse effects on the colonic barrier. The ability of fructose to affect the colonic barrier through physical, immune, and biological pathways provides additional insight into the intestinal disorders caused by high-fructose diets.
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Affiliation(s)
- Qianyun Gan
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China;; Academy of National Food and Strategic Reserves Administration, Beijing, China
| | - Ge Song
- Academy of National Food and Strategic Reserves Administration, Beijing, China
| | - Wei Fang
- Academy of National Food and Strategic Reserves Administration, Beijing, China
| | - Yong Wang
- Academy of National Food and Strategic Reserves Administration, Beijing, China
| | - Wentao Qi
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China;; Academy of National Food and Strategic Reserves Administration, Beijing, China.
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17
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Curci D, Franzin M, Zudeh G, Bramuzzo M, Lega S, Decorti G, Stocco G, Lucafò M. Expression profiles of the lncRNA antisense GAS5-AS1 in colon biopsies from pediatric inflammatory bowel disease patients and its role in regulating sense transcript GAS5. Eur J Pediatr 2024; 183:1657-1665. [PMID: 38197962 PMCID: PMC11001710 DOI: 10.1007/s00431-023-05403-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/11/2024]
Abstract
The long non-coding RNA (lncRNA) growth arrest-specific transcript 5 (GAS5) level was demonstrated as involved in pediatric inflammatory bowel disease (IBD) pathogenesis. Since its antisense transcript GAS5-AS1 has never been investigated in IBD, this study aims to detect whether GAS5-AS1 and GAS5 levels are related to IBD clinical parameters and investigate their correlation in vitro. Twenty-six IBD pediatric patients were enrolled; paired inflamed and non-inflamed intestinal biopsies were collected. We evaluated GAS5 and GAS5-AS1 levels by real-time PCR. The role of GAS5 and GAS5-AS1 was assessed in vitro by transient silencing in THP1-derived macrophages. GAS5-AS1 and GAS5 levels were associated with patients' clinical parameters; GAS5-AS1 expression was downregulated in inflamed tissues and inversely correlated with disease activity. A positive correlation between GAS5-AS1 and GAS5 levels was observed in non-inflamed biopsies. On THP1-derived macrophages, a reduced amount of both GAS5-AS1 and GAS5 was observed; accordingly, matrix metalloproteinase (MMP) 9 was increased. After GAS5-AS1 silencing, a downregulation of GAS5 was found, whereas no effect was detected on GAS5-AS1 after GAS5 silencing. Conclusion: This study provided for the first time new insights into the potential role of GAS5-AS1 in IBD. GAS5-AS1 modulates GAS5 levels in vitro and may serve as a potential IBD diagnostic biomarker. What is Known: • GAS5 is involved in regulating intestinal MMP-2 and MMP-9 in pediatric patients with IBD; • GAS5-AS1 has never been investigated in the context of IBD; • GAS5-AS1 regulates the expression of GAS5, increasing its stability in tissues and in vitro cell models of cancer. What is New: • GAS5-AS1 correlated with GAS5 and IBD clinical parameters; • GAS5-AS1 can modulate GAS5 levels in macrophages; • GAS5-AS1 may serve as potential IBD diagnostic biomarker.
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Affiliation(s)
- Debora Curci
- Department of Advanced Translational Diagnostics, Institute for Maternal and Child Health IRCCS "Burlo Garofolo", 34137, Trieste, Italy
| | - Martina Franzin
- Department of Advanced Translational Diagnostics, Institute for Maternal and Child Health IRCCS "Burlo Garofolo", 34137, Trieste, Italy
| | - Giulia Zudeh
- Department of Advanced Translational Diagnostics, Institute for Maternal and Child Health IRCCS "Burlo Garofolo", 34137, Trieste, Italy
| | - Matteo Bramuzzo
- Department of Pediatric Gastroenterology, Institute for Maternal and Child Health IRCCS "Burlo Garofolo", 34137, Trieste, Italy
| | - Sara Lega
- Department of Pediatric Gastroenterology, Institute for Maternal and Child Health IRCCS "Burlo Garofolo", 34137, Trieste, Italy
| | - Giuliana Decorti
- Department of Medicine Surgery and Health Sciences, University of Trieste, 34149, Trieste, Italy
| | - Gabriele Stocco
- Department of Advanced Translational Diagnostics, Institute for Maternal and Child Health IRCCS "Burlo Garofolo", 34137, Trieste, Italy.
- Department of Medicine Surgery and Health Sciences, University of Trieste, 34149, Trieste, Italy.
| | - Marianna Lucafò
- Department of Life Sciences, University of Trieste, 34127, Trieste, Italy
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18
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Emilia N, Pia SV, Tiina HP, Antti N, Anniina V, Anneli R, Michael L, Natalia RS. In vitro protein digestion and carbohydrate colon fermentation of microbial biomass samples from bacterial, filamentous fungus and yeast sources. Food Res Int 2024; 182:114146. [PMID: 38519176 DOI: 10.1016/j.foodres.2024.114146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 02/13/2024] [Accepted: 02/17/2024] [Indexed: 03/24/2024]
Abstract
This study evaluated the nutritional quality of different microbial biomass samples by assessing their protein digestibility and carbohydrate fermentability in the colon using in vitro methods. Four microbial samples were produced: one hydrogen-oxidizing bacterial strain (Nocardioides nitrophenolicus KGS-27), two strains of filamentous fungi (Rhizopus oligosporus and Paecilomyces variotii), and one yeast strain (Rhodotorula babjevae). The microorganisms were grown in bioreactors, harvested and dried before analysis. The commercial fungal product Quorn was used as a reference. The protein digestibility of the microbial samples was analysed using the INFOGEST in vitro model, followed by quantification of N-terminal amine groups. An in vitro faecal fermentation experiment was also performed to evaluate the degradation of carbohydrates in microbial biomass samples and formation of short-chain fatty acids (SCFA). The fungal biomass samples had higher protein hydrolysis (60-75 %) than the bacterial sample (12 %) and Quorn (45 %), while the yeast biomass had the highest protein digestibility (85 %). Heat-treatment of the biomass significantly reduced its protein digestibility. Total dietary fibre (DF) content of fungal biomass was 31 - 43 %(DW), mostly insoluble, whereas the bacterial biomass contained mainly soluble DF (total DF: 25.7 %, of which 23.5 % were soluble and 2.2 % insoluble). After 24 h of colonic in vitro fermentation, SCFA production from the biomass of Paecilomyces, Quorn and Rhodotorula was similar to that of wheat bran, while 17 % and 32 % less SCFA were produced from the biomass of Rhizopus and the bacterial strain, respectively. Further studies are needed to clarify the reasons for the observed differences in protein digestibility and DF fermentability, especially regarding the cell wall structures and role of post-processing.
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Affiliation(s)
- Nordlund Emilia
- VTT Technical Research Centre of Finland, Ltd, P.O. Box 1000, FI-02044, Finland.
| | | | | | - Nyyssölä Antti
- VTT Technical Research Centre of Finland, Ltd, P.O. Box 1000, FI-02044, Finland
| | - Valtonen Anniina
- VTT Technical Research Centre of Finland, Ltd, P.O. Box 1000, FI-02044, Finland; Nordic Umami Company Ltd., Karamalmintie 2, 02630 Espoo, Finland(1)
| | - Ritala Anneli
- VTT Technical Research Centre of Finland, Ltd, P.O. Box 1000, FI-02044, Finland
| | - Lienemann Michael
- VTT Technical Research Centre of Finland, Ltd, P.O. Box 1000, FI-02044, Finland
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19
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Huang D, Zou M, Xu C, Wang Y, Xu Z, Zhang W, Tang S, Weng Z. Colon-Targeted Oral Delivery of Hydroxyethyl Starch-Curcumin Microcapsules Loaded with Multiple Drugs Alleviates DSS-Induced Ulcerative Colitis in Mice. Macromol Biosci 2024; 24:e2300465. [PMID: 38111343 DOI: 10.1002/mabi.202300465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/05/2023] [Indexed: 12/20/2023]
Abstract
Combination therapy through colon-targeted oral delivery of multiple drugs presents a promising approach for effectively treating ulcerative colitis (UC). However, the codelivery of drugs with diverse physicochemical properties in a single formulation remains a formidable challenge. Here, microcapsules are designed based on hydroxyethyl starch-curcumin (HES─CUR) conjugates to enable the simultaneous delivery of hydrophobic dexamethasone acetate (DA) and hydrophilic cefazolin sodium (CS), yielding multiple drug-loaded microcapsules (CS/DA-loaded HES─CUR microcapsules, CDHC-MCs) tailored for colon-targeted therapy of UC. Thorough characterization confirms the successful synthesis and exceptional biocompatibility of CDHC-MCs. Biodistribution studies demonstrate that the microcapsules exhibit an impressive inflammatory targeting effect, accumulating preferentially in inflamed colons. In vivo experiments employing a dextran-sulfate-sodium-induced UC mouse model reveal that CDHC-MCs not only arrest UC progression but also facilitate the restoration of colon length and alleviate inflammation-related splenomegaly. These findings highlight the potential of colon-targeted delivery of multiple drugs within a single formulation as a promising strategy to enhance UC treatment, and the CDHC-MCs developed in this study hold great potential in developing novel oral formulations for advanced UC therapy.
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Affiliation(s)
- Da Huang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Minglang Zou
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Chenlan Xu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Yongming Wang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Zhenjin Xu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Wancong Zhang
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515051, China
- Plastic Surgery Institute of Shantou University Medical College, Shantou, Guangdong, 515051, China
- Shantou Plastic surgery Clinical Research Center, Shantou, Guangdong, 515051, China
| | - Shijie Tang
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515051, China
- Plastic Surgery Institute of Shantou University Medical College, Shantou, Guangdong, 515051, China
- Shantou Plastic surgery Clinical Research Center, Shantou, Guangdong, 515051, China
| | - Zuquan Weng
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
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20
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Sun Q, Bibi S, Xue Y, Du M, Chew B, Zhu MJ. Dietary purple potato supplement attenuates DSS-induced colitis in mice: impact on mitochondrial function. J Nutr Biochem 2024; 126:109585. [PMID: 38253109 DOI: 10.1016/j.jnutbio.2024.109585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 12/18/2023] [Accepted: 01/17/2024] [Indexed: 01/24/2024]
Abstract
Inflammatory bowel disease (IBD) is a condition characterized by disrupted intestinal barrier function, abnormal immune response, and mucosal structure loss. This study evaluated the beneficial role of purple potato (PP) supplementation against IBD symptoms using a murine model of dextran sulfate sodium (DSS)-induced colitis, and further explored the underlying mechanisms. Six-week-old C57BL/6J male mice were randomized into two groups and fed a standard rodent diet with or without 10% PP powder for 7 weeks. At the 5th week of dietary supplements, mice in each group were further divided into two subgroups and were either induced with or without 2.5% DSS induction for 7 days, followed by 7 days of recovery. Data showed that PP supplementation ameliorated the disease activity index in DSS-treated mice and reversed the colonic structure loss, mucosal damage, macrophage infiltration, and pro-inflammatory cytokine secretion induced by DSS in the colonic tissue. PP supplementation also restored the levels of tight junction proteins and caudal type homeobox 2 in DSS-treated mice. Furthermore, dietary PP enhanced peroxisome proliferator-activated receptor-γ coactivator-1α signaling pathway, mitochondrial biogenesis, mitochondrial proteostasis, and protein-folding capacity. In summary, dietary PP ameliorated DSS-induced colitis and improved gut structures and barrier function, which was associated with improved mitochondrial function. These results support further investigation of PP as a potential dietary intervention for IBD.
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Affiliation(s)
- Qi Sun
- School of Food Science, Washington State University, Pullman, WA, USA
| | - Shima Bibi
- School of Food Science, Washington State University, Pullman, WA, USA
| | - Yansong Xue
- School of Food Science, Washington State University, Pullman, WA, USA
| | - Min Du
- Department of Animal Sciences, Washington State University, Pullman, WA, USA
| | - Boon Chew
- School of Food Science, Washington State University, Pullman, WA, USA
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, WA, USA.
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21
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Li S, Chen M, Wang Z, Abudourexiti W, Zhang L, Ding C, Ding L, Gong J. Ant may well destroy a whole dam: glycans of colonic mucus barrier disintegrated by gut bacteria. Microbiol Res 2024; 281:127599. [PMID: 38219635 DOI: 10.1016/j.micres.2023.127599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/29/2023] [Accepted: 12/30/2023] [Indexed: 01/16/2024]
Abstract
The colonic mucus layer plays a critical role in maintaining the integrity of the colonic mucosal barrier, serving as the primary defense against colonic microorganisms. Predominantly composed of mucin 2 (MUC2), a glycosylation-rich protein, the mucus layer forms a gel-like coating that covers the colonic epithelium surface. This layer provides a habitat for intestinal microorganisms, which can utilize mucin glycans present in the mucus layer as a sustainable source of nutrients. Additionally, metabolites produced by the microbiota during the metabolism of mucus glycans have a profound impact on host health. Under normal conditions, the production and consumption of mucus maintain a dynamic balance. However, several studies have demonstrated that certain factors, such as dietary fiber deficiency, can enhance the metabolism of mucus glycans by gut bacteria, thereby disturbing this balance and weakening the mucus barrier function of the mucus layer. To better understand the occurrence and development of colon-related diseases, it is crucial to investigate the complex metabolic patterns of mucus glycosylation by intestinal microorganisms. Our objective was to comprehensively review these patterns in order to clarify the effects of mucus layer glycan metabolism by intestinal microorganisms on the host.
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Affiliation(s)
- Song Li
- Department of General Surgery, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, China
| | - Mingfei Chen
- Department of General Surgery, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, China
| | - Zhongyuan Wang
- Department of General Surgery, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, China
| | - Waresi Abudourexiti
- Department of General Surgery, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, China
| | - Liang Zhang
- Department of Gastrointestinal Surgery, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical College, Jiangsu, China
| | - Chao Ding
- Department of General Surgery, Affiliated Drum Tower Hospital, Medical School, Nanjing University, Nanjing, China.
| | - Lin Ding
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China; Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China.
| | - Jianfeng Gong
- Department of General Surgery, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, China.
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22
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Xu L, Zhao Q, Xie Y, Bai G, Liu H, Chen Q, Duan H, Wang L, Xu H, Sun Y, Ling G, Ge W, Zhu Y. Telmisartan loading thermosensitive hydrogel repairs gut epithelial barrier for alleviating inflammatory bowel disease. Colloids Surf B Biointerfaces 2024; 236:113799. [PMID: 38367290 DOI: 10.1016/j.colsurfb.2024.113799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/29/2024] [Accepted: 02/12/2024] [Indexed: 02/19/2024]
Abstract
Inflammatory bowel disease (IBD) remains a global health concern with a complex and incompletely understood pathogenesis. In the course of IBD development, damage to intestinal epithelial cells and a reduction in the expression of tight junction (TJ) proteins compromise the integrity of the intestinal barrier, exacerbating inflammation. Notably, the renin-angiotensin system and angiotensin II receptor type 1 (AT1R) play a crucial role in regulating the pathological progression including vascular permeability, and immune microenvironment. Thus, Telmisartan (Tel), an AT1R inhibitor, loading thermosensitive hydrogel was constructed to investigate the potential of alleviating inflammatory bowel disease through rectal administration. The constructed hydrogel exhibits an advantageous property of rapid transformation from a solution to a gel state at 37°C, facilitating prolonged drug retention within the gut while mitigating irritation associated with rectal administration. Results indicate that Tel also exhibits a beneficial effect in ameliorating colon shortening, colon wall thickening, cup cell lacking, crypt disappearance, and inflammatory cell infiltration into the mucosa in colitis mice. Moreover, it significantly upregulates the expression of TJ proteins in colonic tissues thereby repairing the intestinal barrier damage and alleviating the ulcerative colitis (UC) disease process. In conclusion, Tel-loaded hydrogel demonstrates substantial promise as a potential treatment modality for IBD.
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Affiliation(s)
- Lu Xu
- Department of Pharmacy, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province 210008, China
| | - Qin Zhao
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province 210008, China
| | - Yiqiong Xie
- Department of Pharmacy, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province 210008, China
| | - Ge Bai
- Department of Gastroenterology, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province 210008, China
| | - Hongwen Liu
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu Province 210008, China
| | - Qi Chen
- Department of Gastroenterology, China Pharmaceutical University Nanjing Drum Tower Hospital, Nanjing, Jiangsu Province 210008, China
| | - Hongjue Duan
- Nanjing Medical Center for Clinical Pharmacy, Nanjing, Jiangsu Province 210008, China
| | - Lishan Wang
- Department of Gastroenterology, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province 210008, China
| | - Hang Xu
- School of Pharmacy, Faculty of Medicine, Macau University of Science and Technology, Macau SAR 999078, China; Department of Pharmacy, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Yuxiang Sun
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou 225001, PR China
| | - Gao Ling
- Department of Cardiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu Province 210008, China.
| | - Weihong Ge
- Department of Pharmacy, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province 210008, China; Nanjing Medical Center for Clinical Pharmacy, Nanjing, Jiangsu Province 210008, China.
| | - Yun Zhu
- Department of Pharmacy, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province 210008, China; Nanjing Medical Center for Clinical Pharmacy, Nanjing, Jiangsu Province 210008, China.
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23
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Zhang Y, Pan Y, Lin H, Chen X, He P, Wang Y, Chen P, Chu Q. Crude Tieguanyin oolong tea polysaccharides regulate intestinal immune and gut microflora in dextran sulfate sodium-induced mice colitis. J Sci Food Agric 2024; 104:3156-3166. [PMID: 38073022 DOI: 10.1002/jsfa.13206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 11/30/2023] [Accepted: 12/11/2023] [Indexed: 01/04/2024]
Abstract
BACKGROUND The global incidence and prevalence of inflammatory bowel diseases (IBDs) have been increasing. Epidemiological studies, clinical trials, and animal experiments have indicated a negative association between the consumption of tea and IBD. This study aims to investigate the protective effects of crude Tieguanyin oolong tea polysaccharides (CTPS) on experimental colitis, while also exploring the underlying mechanisms. RESULTS The administration of CTPS significantly alleviated IBD in the mouse model, and was found to regulate T-cell mediated immune responses in the colon by modulating cytokine production associated with T cells. Furthermore, CTPS demonstrated a positive impact on the gut microbiota, reversing the increase in pathogenic Helicobacter and enhancing the relative abundances of beneficial bacteria such as Akkermansia, Lachnospiraceae, and Odoribacter. Oral administration of CTPS also led to an improvement in intestinal metabolism, specifically by increasing the levels of short-chain fatty acids. CONCLUSION This study provides the first in vivo evidence of the protective effects of CTPS on colitis in mice. The effects are likely facilitated through the regulation of T cell-mediated responses and modulation of the gut microbiota, suggesting that CTPS may be a potential preventive and therapeutic approach for IBD. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yuxi Zhang
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Yani Pan
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Haiyu Lin
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Xue Chen
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Puming He
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Yuefei Wang
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Ping Chen
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Qiang Chu
- Tea Research Institute, Zhejiang University, Hangzhou, China
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24
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Li W, Lin J, Zhou J, He S, Wang A, Hu Y, Li H, Zou L, Liu Y. Hyaluronic acid-functionalized DDAB/PLGA nanoparticles for improved oral delivery of magnolol in the treatment of ulcerative colitis. Int J Pharm 2024; 653:123878. [PMID: 38325622 DOI: 10.1016/j.ijpharm.2024.123878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/21/2024] [Accepted: 02/02/2024] [Indexed: 02/09/2024]
Abstract
Dysfunction of the mucosal barrier as well as local inflammation are major challenges in the treatment of ulcerative colitis (UC). Mag, a natural compound derived from traditional Chinese medicine, has been shown to have anti-inflammatory and mucosal protection properties. However, its poor gastrointestinal stability as well as its insufficient accumulation in inflamed colonic lesions limit its potential use as an alternative therapeutic drug in UC. The present research involved the design and preparation of a hybrid nanoparticle system (LPNs) specifically targeting macrophages at the colonic site. This was achieved by electrostatically adsorbing HA onto positively charged lipid-polymer hybrid nanoparticles (HA-LPNs). The prepared HA-LPNs exhibited a rounded morphology and a narrow size distribution. In vitro, the anti-inflammatory efficacy of Mag-HA-LPNs (which control levels of the pro-inflammatory cytokines NO, IL-6 and TNF-α) was assessed in RAW 264.7 cells. Analysis by flow cytometry and fluorescence microscopy demonstrated increased cellular uptake through HA/CD44 interaction. As expected, Mag-HA-LPNs was found to effectively increased colon length and reduced DAI scores in DSS-treated mice. This effect was achieved by regulating the inflammatory cytokines level and promoting the restoration of the colonic mucosal barrier through increased expression of Claudin-1, ZO-1 and Occludin. In this study, we developed an efficient and user-friendly delivery method for the preparation of HA-functionalized PLGA nanoparticles, which are intended for oral delivery of Mag. The findings suggest that these HA-LPNs possess the potential to serve as a promising approach for direct drug delivery to the colon for effective treatment of UC.
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Affiliation(s)
- Wei Li
- School of Basic Medicine, Chengdu University, Chengdu 610106, People's Republic of China
| | - Jie Lin
- Affiliated Hospital & Clinical Medical College of Chengdu University, Chengdu University, Chengdu 610081, People's Republic of China; State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
| | - Jie Zhou
- School of Pharmacy, Chengdu University, Chengdu, 610106, People's Republic of China
| | - Siqi He
- School of Pharmacy, Chengdu University, Chengdu, 610106, People's Republic of China
| | - Anqi Wang
- School of Basic Medicine, Chengdu University, Chengdu 610106, People's Republic of China
| | - Yingfan Hu
- School of Basic Medicine, Chengdu University, Chengdu 610106, People's Republic of China
| | - Hanmei Li
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, People's Republic of China
| | - Liang Zou
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, People's Republic of China.
| | - Ya Liu
- Affiliated Hospital & Clinical Medical College of Chengdu University, Chengdu University, Chengdu 610081, People's Republic of China.
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25
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Yue Y, Shi M, Song X, Ma C, Li D, Hu X, Chen F. Lycopene Ameliorated DSS-Induced Colitis by Improving Epithelial Barrier Functions and Inhibiting the Escherichia coli Adhesion in Mice. J Agric Food Chem 2024; 72:5784-5796. [PMID: 38447175 DOI: 10.1021/acs.jafc.3c09717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Adherent-invasive Escherichia coli plays an important role in the pathogenesis of inflammatory bowel disease. Blocking the adhesion of E. coli to intestinal epithelial cells appears to be useful for attenuating inflammatory bowel disease. Lycopene has been reported to have anti-inflammatory and antimicrobial activities. The aim of this study was to test the intervention effect of lycopene on colitis in mice and to investigate the possible mechanism through which lycopene affects the adhesion of E. coli to intestinal epithelial cells. Lycopene (12 mg/kg BW) attenuated dextran sulfate sodium (DSS)-induced colitis, decreased the proportion of E. coli, and activated the NLR family pyrin domain containing 12 and inactivated nuclear factor kappa B pathways. Furthermore, lycopene inhibited the adhesion of E. coli O157:H7 to Caco-2 cells by blocking the interaction between E. coli O157:H7 and integrin β1. Lycopene ameliorated DSS-induced colitis by improving epithelial barrier functions and inhibiting E. coli adhesion. Overall, these results show that lycopene may be a promising component for the prevention and treatment of colitis.
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Affiliation(s)
- Yunshuang Yue
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruit and Vegetable Processing Ministry of Agriculture, Engineering Research Centre for Fruit and Vegetable Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
- Beijing DaBeiNong Biotechnology Co., Ltd., Beijing 100193, China
| | - Mengxuan Shi
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruit and Vegetable Processing Ministry of Agriculture, Engineering Research Centre for Fruit and Vegetable Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Xunyu Song
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruit and Vegetable Processing Ministry of Agriculture, Engineering Research Centre for Fruit and Vegetable Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Chen Ma
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruit and Vegetable Processing Ministry of Agriculture, Engineering Research Centre for Fruit and Vegetable Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Daotong Li
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruit and Vegetable Processing Ministry of Agriculture, Engineering Research Centre for Fruit and Vegetable Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Xiaosong Hu
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruit and Vegetable Processing Ministry of Agriculture, Engineering Research Centre for Fruit and Vegetable Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Fang Chen
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruit and Vegetable Processing Ministry of Agriculture, Engineering Research Centre for Fruit and Vegetable Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
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26
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Gu Y, Gao L, He J, Luo M, Hu M, Lin Y, Li J, Hou T, Si J, Yu Y. β-Nicotinamide mononucleotide supplementation prolongs the lifespan of prematurely aged mice and protects colon function in ageing mice. Food Funct 2024; 15:3199-3213. [PMID: 38445897 DOI: 10.1039/d3fo05221d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Ageing is defined as the degeneration of physiological functions in numerous tissues and organs of an organism, which occurs with age. As we age, the gut undergoes a series of changes and weaknesses that may contribute to overall ageing. Emerging evidence suggests that β-nicotinamide mononucleotide (NMN) plays a role in regulating intestinal function, but there is still a lack of literature on its role in maintaining the colon health of ageing mice. In our research, Zmpste24-/- mice proved that NMN prolonged their life span and delayed senescence. This study was designed to investigate the effects of long-term intervention on regulating colon function in ageing mice. Our results indicated that NMN improved the pathology of intestinal epithelial cells and intestinal permeability by upregulating the expression of intestinal tight junction proteins and the number of goblet cells, increasing the release of anti-inflammatory factors, and increasing beneficial intestinal bacteria. NMN increased the expression of the proteins SIRT1, NMNAT2, and NMNAT3 and decreased the expression of the protein P53. It also regulated the activity of ISCs by increasing Wnt/β-catenin and Lgr5. Our findings also revealed that NMN caused a significant increase in the relative abundance of Akkermansia muciniphila and Bifidobacterium pseudolongum and notable differences in metabolic pathways related to choline metabolism in cancer. In summary, NMN supplementation can delay frailty in old age, aid healthy ageing, and delay gut ageing.
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Affiliation(s)
- Yanrou Gu
- Department of Gastroenterology, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou325035, China.
| | - Lidan Gao
- Department of Scientific Research Center, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou Maternal and Child Health Care Hospital, Wenzhou325035, China
| | - Jiamin He
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou310058, China.
- Institution of Gastroenterology, Zhejiang University, Hangzhou310058, China
- Prevention and Treatment Research Center for Senescent Disease, Zhejiang University School of Medicine, Hangzhou310058, China
| | - Man Luo
- Department of Clinical Nutrition, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou310058, China
| | - Mei Hu
- Department of Gastroenterology, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou325035, China.
| | - Yuxian Lin
- Department of Gastroenterology, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou325035, China.
| | - Jianxin Li
- Department of Gastroenterology, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou325035, China.
| | - Tongyao Hou
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou310058, China.
- Institution of Gastroenterology, Zhejiang University, Hangzhou310058, China
| | - Jianmin Si
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou310058, China.
- Institution of Gastroenterology, Zhejiang University, Hangzhou310058, China
- Prevention and Treatment Research Center for Senescent Disease, Zhejiang University School of Medicine, Hangzhou310058, China
| | - Yingcong Yu
- Department of Gastroenterology, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou325035, China.
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27
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Nissen L, Casciano F, Chiarello E, Di Nunzio M, Bordoni A, Gianotti A. Sourdough process and spirulina-enrichment can mitigate the limitations of colon fermentation performances of gluten-free breads in non-celiac gut model. Food Chem 2024; 436:137633. [PMID: 37839115 DOI: 10.1016/j.foodchem.2023.137633] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/17/2023]
Abstract
In this work, the impact of gluten free (GF) breads enriched with spirulina on the ecology of the colon microbiota of non-celiac volunteers was investigated. Simulation of digestion of GF breads was conducted with an in vitro gut model. Microbiomics and metabolomics analyses were done during colon fermentations to study the modulation of the microbiota. From the results, a general increase in Proteobacteria and no reduction of detrimental microbial metabolites were observed in any conditions. Notwithstanding, algae enriched sourdough breads showed potential functionalities, as the improvement of some health-related ecological indicators, like i) microbiota eubiosis; ii) production of bioactive volatile organic fatty acids; iii) production of bioactives terpenes. Our results indicate that a sourdough fermentation and algae enrichment can mitigate the negative effect of GF breads on gut microbiota of non-celiac consumers.
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Affiliation(s)
- Lorenzo Nissen
- DiSTAL - Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy; CIRI - Interdepartmental Centre of Agri-Food Industrial Research, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy; CRBA, Centre for Applied Biomedical Research, Alma Mater Studiorum - University of Bologna, Policlinico di Sant'Orsola, Bologna 40100, Italy.
| | - Flavia Casciano
- DiSTAL - Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy; CRBA, Centre for Applied Biomedical Research, Alma Mater Studiorum - University of Bologna, Policlinico di Sant'Orsola, Bologna 40100, Italy.
| | - Elena Chiarello
- DiSTAL - Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy.
| | - Mattia Di Nunzio
- Department of Food, Environmental and Nutritional Sciences (DEFENS), University of Milan, via Celoria 2, 20133 Milan, Italy.
| | - Alessandra Bordoni
- DiSTAL - Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy; CIRI - Interdepartmental Centre of Agri-Food Industrial Research, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy.
| | - Andrea Gianotti
- DiSTAL - Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy; CIRI - Interdepartmental Centre of Agri-Food Industrial Research, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy; CRBA, Centre for Applied Biomedical Research, Alma Mater Studiorum - University of Bologna, Policlinico di Sant'Orsola, Bologna 40100, Italy.
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Riemann B, Antoine T, Béduneau A, Pellequer Y, Lamprecht A, Moulari B. Active nanoparticle targeting of MUC5AC ameliorates therapeutic outcome in experimental colitis. Nanoscale 2024; 16:5715-5728. [PMID: 38407269 DOI: 10.1039/d3nr05681c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Inflammatory bowel diseases (IBDs), which include Crohn's disease (CD) and ulcerative colitis (UC), are chronic inflammatory diseases of the gastrointestinal tract and are characterized by chronic recurrent ulceration of the bowels. Colon-targeted drug delivery systems (DDS) have received significant attention for their potential to treat IBD by improving the inflamed tissue selectivity. Herein, antiMUC5AC-decorated drug loaded nanoparticles (NP) are suggested for active epithelial targeting and selective adhesion to the inflamed tissue in experimental colitis. NPs conjugated with antiMUC5AC (anti-MUC5) were tested for their degree of bioadhesion with HT29-MTX cells by comparison with non-targeted BSA-NP conjugates. In vivo, the selectivity of bioadhesion and the influence of ligand density in bioadhesion efficiency as well as the therapeutic benefit for glucocorticoid loaded anti-MUC5-NP were studied in a murine colitis model. Quantitative adhesion analyses showed that anti-MUC5-conjugated NP exhibited a much higher binding and selectivity to inflamed tissue compared to PNA-, IgG1- and BSA-NP conjugates used as controls. This bioadhesion efficiency was found to be dependent on the ligand density, present at the NP surface. The binding specificity between anti-MUC5 ligand and inflamed tissues was confirmed by fluorescence imaging. Both anti-MUC5-NP and all other glucocorticoid containing formulations led to a significant mitigation of the experimental colitis, as became evident from the substantial reduction of myeloperoxidase activity and pro-inflammatory cytokine concentrations (TNF-α, IL-1β). Targeted NP by using anti-MUC5 appears to be a very promising tool in future treatment of various types of local disorders affecting the gastro-intestinal tract but not limited to colitis.
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Affiliation(s)
- Bernadette Riemann
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT, F-25000 Besançon, France
- Department of Pharmaceutics, Institute of Pharmacy, University of Bonn, Germany
| | - Thomas Antoine
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT, F-25000 Besançon, France
| | - Arnaud Béduneau
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT, F-25000 Besançon, France
| | - Yann Pellequer
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT, F-25000 Besançon, France
| | - Alf Lamprecht
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT, F-25000 Besançon, France
- Department of Pharmaceutics, Institute of Pharmacy, University of Bonn, Germany
| | - Brice Moulari
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT, F-25000 Besançon, France
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Jang S, Jang S, Ko J, Bae JE, Hyung H, Park JY, Lim SG, Park S, Park S, Yi J, Kim S, Kim MO, Cho DH, Ryoo ZY. HSPA9 reduction exacerbates symptoms and cell death in DSS-Induced inflammatory colitis. Sci Rep 2024; 14:5908. [PMID: 38467701 PMCID: PMC10928168 DOI: 10.1038/s41598-024-56216-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 03/04/2024] [Indexed: 03/13/2024] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory condition that is influenced by various factors, including environmental factors, immune responses, and genetic elements. Among the factors that influence IBD progression, macrophages play a significant role in generating inflammatory mediators, and an increase in the number of activated macrophages contributes to cellular damage, thereby exacerbating the overall inflammatory conditions. HSPA9, a member of the heat shock protein 70 family, plays a crucial role in regulating mitochondrial processes and responding to oxidative stress. HSPA9 deficiency disrupts mitochondrial dynamics, increasing mitochondrial fission and the production of reactive oxygen species. Based on the known functions of HSPA9, we considered the possibility that HSPA9 reduction may contribute to the exacerbation of colitis and investigated its relevance. In a dextran sodium sulfate-induced colitis mouse model, the downregulated HSPA9 exacerbates colitis symptoms, including increased immune cell infiltration, elevated proinflammatory cytokines, decreased tight junctions, and altered macrophage polarization. Moreover, along with the increased mitochondrial fission, we found that the reduction in HSPA9 significantly affected the superoxide dismutase 1 levels and contributed to cellular death. These findings enhance our understanding of the intricate mechanisms underlying colitis and contribute to the development of novel therapeutic approaches for this challenging condition.
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Affiliation(s)
- Soyoung Jang
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea.
| | - Soyeon Jang
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Jiwon Ko
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Ji-Eun Bae
- KNU LAMP Research Center, KNU Institute of Basic Sciences, College of Natural Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Hyejin Hyung
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Ji Yeong Park
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Su-Geun Lim
- Institute of Life Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Sijun Park
- Institute of Life Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Song Park
- Department of Animal Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
- Institute of Agriculture and Life Science (IALS), Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Junkoo Yi
- School of Animal Life Convergence Science, Hankyong National University, Anseong, 17579, Korea
| | - Seonggon Kim
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, Korea
| | - Myoung Ok Kim
- Department of Animal Science and Biotechnology, Research Institute for Innovative Animal Science, Kyungpook National University, Sangju-si, Gyeongsang buk-do, 37224, Republic of Korea
| | - Dong-Hyung Cho
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea.
- Organelle Institute, Kyungpook National University, Daegu, 41566, Republic of Korea.
- ORGASIS Corp., Suwon, Gyeonggido, 16229, Republic of Korea.
| | - Zae Young Ryoo
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea.
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30
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Quan X, Zhang M, Qiao Z, Kou X, Xue Q, Wang J, Li L. Nitric oxide and ion channels mediate L-cysteine-induced inhibition of colonic smooth muscle contraction. J Muscle Res Cell Motil 2024; 45:11-20. [PMID: 38141146 DOI: 10.1007/s10974-023-09664-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023]
Abstract
Previous studies have suggested that L-cysteine regulates gut motility through hydrogen sulfide. However, the mechanisms involved in the L-cysteine-induced response have not been extensively studied. This study aimed to investigate the underlying mechanisms of action of L-cysteine on spontaneous contraction of rat colon. Longitudinal and circular muscle strips from rat middle colon were prepared to measure the spontaneous contractile activities of colon in an organ bath system. Whole-cell voltage-clamp techniques were applied to record the currents of L-type voltage-dependent Ca2+ channels (VDCCs) and voltage-gated K+ channels (Kv) in isolated smooth muscle cells (SMCs) from colon. L-cysteine inhibited the spontaneous contraction of longitudinal and circular muscle strips from the rat colon in a concentration-dependent manner. The inhibition induced by L-cysteine was significantly decreased by inhibitors of H2S synthesis (p < 0.05). Furthermore, the suppression induced by L-cysteine was partially attenuated by tetrodotoxin, L-NNA and glibenclamide (p < 0.05). Whole-cell voltage-clamp recordings showed that L-cysteine caused a remarkable reduction in the peak currents of VDCCs and significantly increased the membrane currents of Kv channels in isolated SMCs (p < 0.05). We concluded that L-cysteine inhibits the contractile activities of smooth muscle strips from the rat colon. The relaxation in response to L-cysteine may be in part mediated by a nitrergic pathway and by inhibiting the VDCCs in combination with a direct activation of the KV channels and KATP channels.
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Affiliation(s)
- Xiaojing Quan
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, China
| | - Min Zhang
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, China
| | - Zhaojun Qiao
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, China
| | - Xuan Kou
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, China
| | - Qiong Xue
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, China
| | - Jinhai Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, China
| | - Lu Li
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, China.
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Fancy N, Nitin, Kniffen D, Melvin M, Kazemian N, Sadeghi J, Letef CA, D'Aloisio L, Copp AG, Inaba R, Hans G, Jafaripour S, Haskey N, Raman M, Daneshgar P, Chadee K, Ghosh S, Gibson DL, Pakpour S, Zandberg W, Bergstrom KSB. Fecal-adherent mucus is a non-invasive source of primary human MUC2 for structural and functional characterization in health and disease. J Biol Chem 2024; 300:105675. [PMID: 38272223 PMCID: PMC10891339 DOI: 10.1016/j.jbc.2024.105675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 01/05/2024] [Accepted: 01/08/2024] [Indexed: 01/27/2024] Open
Abstract
The O-glycoprotein Mucin-2 (MUC2) forms the protective colon mucus layer. While animal models have demonstrated the importance of Muc2, few studies have explored human MUC2 in similar depth. Recent studies have revealed that secreted MUC2 is bound to human feces. We hypothesized human fecal MUC2 (HF-MUC2) was accessible for purification and downstream structural and functional characterization. We tested this via histologic and quantitative imaging on human fecal sections; extraction from feces for proteomic and O-glycomic characterization; and functional studies via growth and metabolic assays in vitro. Quantitative imaging of solid fecal sections showed a continuous mucus layer of varying thickness along human fecal sections with barrier functions intact. Lectin profiling showed HF-MUC2 bound several lectins but was weak to absent for Ulex europaeus 1 (α1,2 fucose-binding) and Sambucus nigra agglutinin (α2,6 sialic acid-binding), and did not have obvious b1/b2 barrier layers. HF-MUC2 separated by electrophoresis showed high molecular weight glycoprotein bands (∼1-2 MDa). Proteomics and Western analysis confirmed the enrichment of MUC2 and potential MUC2-associated proteins in HF-MUC2 extracts. MUC2 O-glycomics revealed diverse fucosylation, moderate sialylation, and little sulfation versus porcine colonic MUC2 and murine fecal Muc2. O-glycans were functional and supported the growth of Bacteroides thetaiotaomicron (B. theta) and short-chain fatty acid (SCFA) production in vitro. MUC2 could be similarly analyzed from inflammatory bowel disease stools, which displayed an altered glycomic profile and differential growth and SCFA production by B. theta versus healthy samples. These studies describe a new non-invasive platform for human MUC2 characterization in health and disease.
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Affiliation(s)
- Noah Fancy
- Biology, University of British Columbia-Okanagan, Kelowna, Canada
| | - Nitin
- Chemistry, University of British Columbia-Okanagan, Kelowna, Canada
| | - Darrek Kniffen
- Biology, University of British Columbia-Okanagan, Kelowna, Canada
| | - Mackenzie Melvin
- Biology, University of British Columbia-Okanagan, Kelowna, Canada
| | - Negin Kazemian
- School of Engineering, University of British Columbia-Okanagan, Kelowna, Canada
| | - Javad Sadeghi
- School of Engineering, University of British Columbia-Okanagan, Kelowna, Canada
| | - Clara A Letef
- Biology, University of British Columbia-Okanagan, Kelowna, Canada
| | - Leah D'Aloisio
- Biology, University of British Columbia-Okanagan, Kelowna, Canada
| | - Amanda G Copp
- Biology, University of British Columbia-Okanagan, Kelowna, Canada
| | - Rain Inaba
- Biology, University of British Columbia-Okanagan, Kelowna, Canada
| | - Geetkamal Hans
- Biology, University of British Columbia-Okanagan, Kelowna, Canada
| | - Simin Jafaripour
- Biology, University of British Columbia-Okanagan, Kelowna, Canada
| | - Natasha Haskey
- Biology, University of British Columbia-Okanagan, Kelowna, Canada
| | - Maitreyi Raman
- Cumming School of Medicine, University of Calgary, Calgary, Canada
| | | | - Kris Chadee
- Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Sanjoy Ghosh
- Biology, University of British Columbia-Okanagan, Kelowna, Canada
| | - Deanna L Gibson
- Biology, University of British Columbia-Okanagan, Kelowna, Canada
| | - Sepideh Pakpour
- School of Engineering, University of British Columbia-Okanagan, Kelowna, Canada
| | - Wesley Zandberg
- Chemistry, University of British Columbia-Okanagan, Kelowna, Canada
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32
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Qu X, Song Y, Li Q, Xu Q, Li Y, Zhang H, Cheng X, Mackay CR, Wang Q, Liu W. Indole-3-acetic acid ameliorates dextran sulfate sodium-induced colitis via the ERK signaling pathway. Arch Pharm Res 2024; 47:288-299. [PMID: 38489148 DOI: 10.1007/s12272-024-01488-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 03/06/2024] [Indexed: 03/17/2024]
Abstract
Microbiota-derived catabolism of nutrients is closely related to ulcerative colitis (UC). The level of indole-3-acetic acid (IAA), a microbiota-dependent metabolite of tryptophan, was decreased significantly in the feces of UC patients. Thus supplementation with IAA could be a potential therapeutic method for ameliorating colitis. In this work, the protective effect of supplementation with IAA on dextran sulfate sodium (DSS)-induced colitis was evaluated, and the underlying mechanism was elucidated. The results indicated that the administration of IAA significantly relieved DSS-induced weight loss, reduced the disease activity index (DAI), restored colon length, alleviated intestinal injury, and improved the intestinal tight junction barrier. Furthermore, IAA inhibited intestinal inflammation by reducing the expression of proinflammatory cytokines and promoting the production of IL-10 and TGF-β1. In addition, the ERK signaling pathway is an important mediator of various physiological processes including inflammatory responses and is closely associated with the expression of IL-10. Notably, IAA treatment induced the activation of extracellular signal-regulated kinase (ERK), which is involved in the progression of colitis, while the ERK inhibitor U0126 attenuated the beneficial effects of IAA. In summary, IAA could attenuate the clinical symptoms of colitis, and the ERK signaling pathway was involved in the underlying mechanism. Supplementation with IAA could be a potential option for preventing or ameliorating UC.
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Affiliation(s)
- Xinyan Qu
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Yingying Song
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Qingjun Li
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Qi Xu
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Yanru Li
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Huimin Zhang
- Shandong Academy of Chinese Medicine, Jinan, China
| | - Xuemei Cheng
- Shandong Center for Disease Control and Prevention, Jinan, China
| | - Charles R Mackay
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Quanbo Wang
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.
| | - Wei Liu
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.
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Yeon NR, Cho JS, Yoo HS, Jeon SH, Yi CM, Jung MJ, Lee YS, Shin EB, Kim N, Kim H, Seong J, Kim NJ, Lee JK, Inn KS. Dextran sodium sulfate (DSS)-induced colitis is alleviated in mice after administration of flavone-derived NRF2-activating molecules. Life Sci 2024; 340:122424. [PMID: 38242497 DOI: 10.1016/j.lfs.2024.122424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/29/2023] [Accepted: 01/10/2024] [Indexed: 01/21/2024]
Abstract
Inflammatory Bowel Disease (IBD) is a chronic and relapsing inflammatory condition characterized by severe symptoms such as diarrhea, fatigue, and weight loss. Growing evidence underscores the direct involvement of the nuclear factor-erythroid 2-related factor 2 (NRF2) in the development and progression of IBD, along with its associated complications, including colorectal cancer. The NRF2 pathway plays a crucial role in cellular responses to oxidative stress, and dysregulation of this pathway has been implicated in IBD. Flavones, a significant subclass of flavonoids, have shown pharmacological impacts in various diseases including IBD, through the NRF2 signaling pathway. In this study, we conducted a screening of compounds with a flavone structure and identified NJK15003 as a promising NRF2 activator. NJK15003 demonstrated potent NRF2 activation, as evidenced by the upregulation of downstream proteins, promoter activation, and NRF2 nuclear translocation in IBD cellular models. Treatment with NJK15003 effectively restored the protein levels of tight junctions in cells treated with dextran sodium sulfate (DSS) and in DSS-treated mice, suggesting its potential to protect cells from barrier integrity disruption in IBD. In DSS-treated mice, the administration of NJK15003 resulted in the prevention of body weight loss, a reduction in colon length shortening, and a decrease in the disease activity index. Furthermore, NJK15003 treatment substantially alleviated inflammatory responses and apoptotic cell death in the colon of DSS-treated mice. Taken together, this study proposes the potential utility of NRF2-activating flavone compounds, exemplified by NJK15003, for the treatment of IBD.
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Affiliation(s)
- Nu-Ri Yeon
- Department of Biomedical and Pharmaceutical Science, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Jae Seok Cho
- Department of Fundamental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Hyung-Seok Yoo
- Department of Pharmacy, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Seung Ho Jeon
- Department of Fundamental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Chae-Min Yi
- Department of Fundamental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Min-Ji Jung
- Department of Fundamental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Yun-Seok Lee
- Department of Fundamental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Eun-Bin Shin
- Department of Fundamental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Namkwon Kim
- Department of Pharmacy, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Heejung Kim
- Department of Pharmacology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Jihye Seong
- Department of Pharmacology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Nam-Jung Kim
- Department of Fundamental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea; Department of Pharmacy, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea.
| | - Jong Kil Lee
- Department of Fundamental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea; Department of Pharmacy, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea.
| | - Kyung-Soo Inn
- Department of Fundamental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea.
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Song W, Wen R, Liu T, Zhou L, Wang G, Dai X, Shi L. Oat-based postbiotics ameliorate high-sucrose induced liver injury and colitis susceptibility by modulating fatty acids metabolism and gut microbiota. J Nutr Biochem 2024; 125:109553. [PMID: 38147914 DOI: 10.1016/j.jnutbio.2023.109553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/19/2023] [Accepted: 12/19/2023] [Indexed: 12/28/2023]
Abstract
High-sucrose (HS) consumption leads to metabolic disorders and increases susceptibility to colitis. Postbiotics hold great potentials in combating metabolic diseases and offer advantages in safety and processability, compared with living probiotics. We developed innovative oat-based postbiotics and extensively explored how they could benefit in rats with long-term high-sucrose consumption. The postbiotics fermented with Lactiplantibacillus plantarum (OF-1) and OF-5, the one fermented with the optimal selection of five probiotics (i.e., L. plantarum, Limosilactobacillus reuteri, Lacticaseibacillus rhamnosus, Lactobacillus acidophilus, and Bifidobacterium lactis) alleviated HS induced liver injury, impaired fatty acid metabolism and inflammation through activating AMPK/SREBP-1c pathways. Moreover, oat-based postbiotics restored detrimental effects of HS on fatty acid profiles in liver, as evidenced by the increases in polyunsaturated fatty acids and decreases in saturated fatty acids, with OF-5 showing most pronounced effects. Furthermore, oat-based postbiotics prevented HS exacerbated susceptibility to dextran sodium sulfate caused colitis and reconstructed epithelial tight junction proteins in colons. Oat-based postbiotics, in particular OF-5 notably remodeled gut microbiota composition, e.g., enriching the relative abundances of Akkermansia, Bifidobacterium, Alloprevotella and Prevotella, which may play an important role in the liver-colon axis responsible for improvements of liver functions and reduction of colitis susceptibility. The heat-inactivated probiotics protected against HS-induced liver and colon damage, but such effects were less pronounced compared with oat-based postbiotics. Our findings emphasize the great value of oat-based postbiotics as nutritional therapeutics to combat unhealthy diet induced metabolic dysfunctions.
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Affiliation(s)
- Wei Song
- School of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Ruixue Wen
- School of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Tianqi Liu
- School of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Lanqi Zhou
- School of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Guoze Wang
- School of Public Health, Guizhou Medical University, Guiyang, Guizhou, China.
| | - Xiaoshuang Dai
- BGI Institute of Applied Agriculture, BGI-Agro, Shenzhen, Guangdong, China
| | - Lin Shi
- School of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi, China.
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35
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Liu Z, Nong K, Qin X, Fang X, Zhang B, Chen W, Wang Z, Wu Y, Shi H, Wang X, Liu Y, Guan Q, Zhang H. The antimicrobial peptide Abaecin alleviates colitis in mice by regulating inflammatory signaling pathways and intestinal microbial composition. Peptides 2024; 173:171154. [PMID: 38242174 DOI: 10.1016/j.peptides.2024.171154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 01/13/2024] [Accepted: 01/14/2024] [Indexed: 01/21/2024]
Abstract
Abaecin is a natural antimicrobial peptide (AMP) rich in proline from bees. It is an important part of the innate humoral immunity of bees and has broad-spectrum antibacterial ability. This study aimed to determine the effect of Abaecin on dextran sulfate sodium (DSS) -induced ulcerative colitis (UC) in mice and to explore its related mechanisms. Twenty-four mice with similar body weight were randomly divided into 4 groups. 2.5% DSS was added to drinking water to induce colitis in mice. Abaecin and PBS were administered rectally on the third, fifth, and seventh days of the experimental period. The results showed that Abaecin significantly alleviated histological damage and intestinal mucosal barrier damage caused by colitis in mice, reduced the concentration of pro-inflammatory cytokines IL-1β, IL-6, TNF-α, IFN-γ, and the phosphorylation of NF-κB / MAPK inflammatory signaling pathway proteins, and improved the composition of intestinal microorganisms. These findings suggest that Abaecin may have potential prospects for the treatment of UC.
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Affiliation(s)
- Zhineng Liu
- School of Tropical Agriculte and Forestry, Hainan University, Haikou 570228, China
| | - Keyi Nong
- School of Tropical Agriculte and Forestry, Hainan University, Haikou 570228, China
| | - Xinyun Qin
- School of Tropical Agriculte and Forestry, Hainan University, Haikou 570228, China
| | - Xin Fang
- School of Tropical Agriculte and Forestry, Hainan University, Haikou 570228, China
| | - Bin Zhang
- School of Tropical Agriculte and Forestry, Hainan University, Haikou 570228, China
| | - Wanyan Chen
- School of Tropical Agriculte and Forestry, Hainan University, Haikou 570228, China
| | - Zihan Wang
- School of Tropical Agriculte and Forestry, Hainan University, Haikou 570228, China
| | - Yijia Wu
- School of Tropical Agriculte and Forestry, Hainan University, Haikou 570228, China
| | - Huiyu Shi
- School of Tropical Agriculte and Forestry, Hainan University, Haikou 570228, China
| | - Xuemei Wang
- School of Tropical Agriculte and Forestry, Hainan University, Haikou 570228, China
| | - Youming Liu
- Yibin Academy of Agricultural Sciences, Yibin 644600, China
| | - Qingfeng Guan
- College of Life and Health, Hainan University, Haikou 570228, China
| | - Haiwen Zhang
- School of Tropical Agriculte and Forestry, Hainan University, Haikou 570228, China.
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Zhou J, Wang J, Wang J, Li D, Hou J, Li J, Bai Y, Gao J. An inulin-type fructan CP-A from Codonopsis pilosula attenuates experimental colitis in mice by promoting autophagy-mediated inactivation of NLRP3 inflammasome. Chin J Nat Med 2024; 22:249-264. [PMID: 38553192 DOI: 10.1016/s1875-5364(24)60556-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Indexed: 04/02/2024]
Abstract
Inulin-type fructan CP-A, a predominant polysaccharide in Codonopsis pilosula, demonstrates regulatory effects on immune activity and anti-inflammation. The efficacy of CP-A in treating ulcerative colitis (UC) is, however, not well-established. This study employed an in vitro lipopolysaccharide (LPS)-induced colonic epithelial cell model (NCM460) and an in vivo dextran sulfate sodium (DSS)-induced colitis mouse model to explore CP-A's protective effects against experimental colitis and its underlying mechanisms. We monitored the clinical symptoms in mice using various parameters: body weight, disease activity index (DAI), colon length, spleen weight, and histopathological scores. Additionally, molecular markers were assessed through enzyme-linked immunosorbent assay (ELISA), quantitative real-time polymerase chain reaction (qRT-PCR), immunofluorescence (IF), immunohistochemistry (IHC), and Western blotting assays. Results showed that CP-A significantly reduced reactive oxygen species (ROS), tumor necrosis factor-alpha (TNF-α), and interleukins (IL-6, IL-1β, IL-18) in LPS-induced cells while increasing IL-4 and IL-10 levels and enhancing the expression of Claudin-1, ZO-1, and occludin proteins in NCM460 cells. Correspondingly, in vivo findings revealed that CP-A administration markedly improved DAI, reduced colon shortening, and decreased the production of myeloperoxidase (MPO), malondialdehyde (MDA), ROS, IL-1β, IL-18, and NOD-like receptor protein 3 (NLRP3) inflammasome-associated genes/proteins in UC mice. CP-A treatment also elevated glutathione (GSH) and superoxide dismutase (SOD) levels, stimulated autophagy (LC3B, P62, Beclin-1, and ATG5), and reinforced Claudin-1 and ZO-1 expression, thereby aiding in intestinal epithelial barrier repair in colitis mice. Notably, the inhibition of autophagy via chloroquine (CQ) diminished CP-A's protective impact against colitis in vivo. These findings elucidate that CP-A's therapeutic effect on experimental colitis possibly involves mitigating intestinal inflammation through autophagy-mediated NLRP3 inflammasome inactivation. Consequently, inulin-type fructan CP-A emerges as a promising drug candidate for UC treatment.
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Affiliation(s)
- Jiangtao Zhou
- School of Pharmaceutical Science, Shanxi Medical University, Jinzhong 030600, China
| | - Jun Wang
- School of Pharmaceutical Science, Shanxi Medical University, Jinzhong 030600, China
| | - Jiajing Wang
- School of Pharmaceutical Science, Shanxi Medical University, Jinzhong 030600, China
| | - Deyun Li
- School of Pharmaceutical Science, Shanxi Medical University, Jinzhong 030600, China
| | - Jing Hou
- School of Pharmaceutical Science, Shanxi Medical University, Jinzhong 030600, China
| | - Jiankuan Li
- School of Pharmaceutical Science, Shanxi Medical University, Jinzhong 030600, China
| | - Yun'e Bai
- School of Pharmaceutical Science, Shanxi Medical University, Jinzhong 030600, China
| | - Jianping Gao
- School of Pharmaceutical Science, Shanxi Medical University, Jinzhong 030600, China.
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Liang J, Yang S, Liu Y, Li H, Han M, Gao Z. Characterization and stability assessment of polyphenols bound to Lycium barbarum polysaccharide: Insights from gastrointestinal digestion and colon fermentation. Food Res Int 2024; 179:114036. [PMID: 38342549 DOI: 10.1016/j.foodres.2024.114036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 02/13/2024]
Abstract
Polysaccharides and polyphenols are biologically active components that coexist in Lycium barbarum fruit, and there may be interactions between them that affect the release of each other. In this study, polyphenols bound to L. barbarum polysaccharide (LBP) were characterized, and the stability of bound phenolics (BP) was assessed by gastrointestinal digestion and colon fermentation. The results showed that a total of 65 phytochemicals such as flavonoids, phenolic acids, and coumarins were identified by UPLC-MS/MS. Quantitative analysis revealed that the major phenolic constituents were rutin, p-coumaric acid, catechin, ferulic acid, protocatechuic acid, and gallic acid, and their contents were 58.72, 24.03, 14.24, 13.28, 10.39, and 6.7 mg GAE/100 g DW, respectively. The release of BP by gastric digestion and gastrointestinal digestion was 9.67 % and 19.39 %, respectively. Most polyphenols were greatly affected by gastric digestion, while rutin was released in small intestine. The BP were fully released (49.77 %) and metabolized by gut microorganisms, and a considerable number of intermediates and end-products were detected, such as phloroglucinol, phenylacetic acid, and phenyllactic acid. Microbiomics data emphasized the positive impact of LBP on gut bacteria of Bacteroides, Parabacteroides, and Clostridioides. These findings could deepen our understanding of the bioavailability and biological fate of BP and also provide reference data for nutrient release and utilization of L. barbarum as a whole.
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Affiliation(s)
- Jingjing Liang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Shuang Yang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuanye Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hongcai Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Mengzhen Han
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhenpeng Gao
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Gold MS, Loeza-Alcocer E. Experimental colitis-induced visceral hypersensitivity is attenuated by GABA treatment in mice. Am J Physiol Gastrointest Liver Physiol 2024; 326:G252-G263. [PMID: 38193198 DOI: 10.1152/ajpgi.00012.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 12/21/2023] [Accepted: 12/26/2023] [Indexed: 01/10/2024]
Abstract
Ulcerative colitis (UC) is linked with inflammation of the large intestine due to an overactive response of the colon-immune system. UC is associated with weight loss, rectal bleeding, diarrhea, and abdominal pain. Given that γ-amino butyric acid (GABA) suppresses immune cell activity and the excitability of colonic afferents, and that there is a decrease in colonic GABA during UC, we hypothesized that UC pain is due to a decrease in the inhibition of colonic afferents. Thus, restoring GABA in the colon will attenuate inflammatory hypersensitivity. We tested this hypothesis in a mouse model of colitis. Colon inflammation was induced with seven days of dextran sodium sulfate (DSS, 3%) in the drinking water. GABA (40 mg/kg) was administered orally for the same period as DSS, and body weight, colon length, colon permeability, clinical progression of colitis (disease activity index or DAI), and colon histological score (HS) were assessed to determine the effects of GABA on colitis. A day after the end of GABA treatment, visceral sensitivity was assessed with balloon distention (of the colon)-evoked visceromotor response and colon samples were collected for the measurement of GABA and cytokines. Treatment with GABA reduced the DSS-induced increase in the colon permeability, DAI, HS, and decrease in body weight and colon length. Furthermore, GABA inhibited the DSS-induced increase in the proinflammatory cytokines tumor necrosis factor-α (TNF-α), interferon-γ (IFN-γ), interleukin-12 (IL-12), and increased the expression of the anti-inflammatory cytokine IL-10 in the colon tissue. Importantly, GABA reduced DSS-induced visceral hypersensitivity. These data suggest that increasing gastrointestinal levels of GABA may be useful for the treatment of colitis.NEW & NOTEWORTHY GABA treatment reduces the severity of colitis and inflammation and produces inhibition of visceral hypersensitivity in colon-inflamed mice. These results raise the promising possibility that GABA treatment may be an effective therapeutic strategy for the management of symptoms associated with colitis. However, clinical studies are required to corroborate whether this mouse-model data translates to human colon.
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Affiliation(s)
- Michael S Gold
- Department of Neurobiology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States
| | - Emanuel Loeza-Alcocer
- Department of Neurobiology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States
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Vorländer D, Schultz G, Hoffmann K, Rasch D, Dohnt K. PETR: A novel peristaltic mixed tubular bioreactor simulating human colonic conditions. Biotechnol Bioeng 2024; 121:1118-1143. [PMID: 38151924 DOI: 10.1002/bit.28636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 12/08/2023] [Accepted: 12/09/2023] [Indexed: 12/29/2023]
Abstract
A novel bioreactor simulating human colonic conditions for in vitro cultivation of intestinal microbiota is presented. The PEristaltic mixed Tubular bioReactor (PETR) is modular designed and periodically kneaded to simulate intestinal peristalsis. The reactor is introduced, characterized from a bioprocess engineer's perspective and discussed in its ability to mimic colon conditions. PETR provides physiological temperature and appropriate anaerobic conditions, simulates intestinal peristalsis, and has a mean residence time of 32.8 ± 0.8 h comparable to the adult human colon. The single-tube design enables a time-constant and longitudinally progressive pH gradient from 5.5 to 7.0. Using a dialysis liquid containing high molecular weight polyethylene glycol, the integrated dialysis system efficiently absorbs short chain fatty acids (up to 60%) and water (on average 850 mL d-1 ). Cultivation of a typical gut bacterium (Bifidobacterium animalis) was performed to demonstrate the applicability for controlled microbiota cultivation. PETR is unique in combining simulation of the entire colon, peristaltic mixing, dialytic water and metabolite absorption, and a progressive pH gradient in a single-tube design. PETR is a further step to precise replication of colonic conditions in vitro for reliable and reproducible microbiota research, such as studying the effect of food compounds, prebiotics or probiotics, or the development and treatment of infections with enteric pathogens, but also for further medical applications such as drug delivery studies or to study the effect of drugs on and their degradation by the microbiota.
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Affiliation(s)
- David Vorländer
- Institute of Biochemical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
- Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Gábor Schultz
- Institute of Biochemical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
- Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Kristin Hoffmann
- Institute of Biochemical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
- Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Detlev Rasch
- Institute of Biochemical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
- Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Katrin Dohnt
- Institute of Biochemical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
- Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
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Hao F, Tian M, Wang H, Li S, Wang X, Jin X, Wang Y, Jiao Y, Tian M. Exercise-induced β-hydroxybutyrate promotes Treg cell differentiation to ameliorate colitis in mice. FASEB J 2024; 38:e23487. [PMID: 38345808 DOI: 10.1096/fj.202301686rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 01/21/2024] [Accepted: 01/30/2024] [Indexed: 02/15/2024]
Abstract
Increasing attention is being paid to the mechanistic investigation of exercise-associated chronic inflammatory disease improvement. Ulcerative colitis (UC) is one type of chronic inflammatory bowel disease with increasing incidence and prevalence worldwide. It is known that regular moderate aerobic exercise (RMAE) reduces the incidence or risk of UC, and attenuates disease progression in UC patients. However, the mechanisms of this RMAE's benefit are still under investigation. Here, we revealed that β-hydroxybutyrate (β-HB), a metabolite upon prolonged aerobic exercise, could contribute to RMAE preconditioning in retarding dextran sulfate sodium (DSS)-induced mouse colitis. When blocking β-HB production, RMAE preconditioning-induced colitis amelioration was compromised, whereas supplementation of β-HB significantly rescued impaired β-HB production-associated defects. Meanwhile, we found that RMAE preconditioning significantly caused decreased colonic Th17/Treg ratio, which is considered to be important for colitis mitigation; and the downregulated Th17/Treg ratio was associated with β-HB. We further demonstrated that β-HB can directly promote the differentiation of Treg cell rather than inhibit Th17 cell generation. Furthermore, β-HB increased forkhead box protein P3 (Foxp3) expression, the core transcriptional factor for Treg cell, by enhancing histone H3 acetylation in the promoter and conserved noncoding sequences of the Foxp3 locus. In addition, fatty acid oxidation, the key metabolic pathway required for Treg cell differentiation, was enhanced by β-HB treatment. Lastly, administration of β-HB without exercise significantly boosted colonic Treg cell and alleviated colitis in mice. Together, we unveiled a previously unappreciated role for exercise metabolite β-HB in the promotion of Treg cell generation and RMAE preconditioning-associated colitis attenuation.
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Affiliation(s)
- Fengqi Hao
- School of Physical Education, Northeast Normal University, Changchun, Jilin, China
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, Jilin, China
| | - Miaomiao Tian
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, Jilin, China
| | - Huiyue Wang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, Jilin, China
| | - Shuo Li
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, Jilin, China
| | - Xinyu Wang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, Jilin, China
| | - Xin Jin
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, Jilin, China
| | - Yang Wang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, Jilin, China
| | - Yang Jiao
- School of Physical Education, Northeast Normal University, Changchun, Jilin, China
| | - Meihong Tian
- School of Physical Education, Northeast Normal University, Changchun, Jilin, China
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Yang YH, Chen C, Zheng Y, Wu ZJ, Zhou MQ, Liu XY, Miyashita K, Duan DL, Du L. Fucoxanthin Alleviates Dextran Sulfate Sodium-Induced Colitis and Gut Microbiota Dysbiosis in Mice. J Agric Food Chem 2024; 72:4142-4154. [PMID: 38355398 DOI: 10.1021/acs.jafc.3c08811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
The purpose of this study was to evaluate the preventive role and underlying mechanisms of fucoxanthin (Fx) on dextran sulfate sodium (DSS)-induced colitis in mice. The present data demonstrated that oral administration of Fx (50 and 200 mg/kg body weight/day) for 36 days significantly alleviated the severity of colitis in DSS-treated mice, as evidenced by attenuating body weight loss, bloody stool, diarrhea, shortened colon length, colonic epithelium distortion, a thin mucus layer, goblet cell depletion, damaged crypts, and extensive infiltration of inflammatory cells in the colonic mucosa. Additionally, Fx notably relieved DSS-induced intestinal epithelial barrier dysfunction via maintaining the tight junction function and preventing excessive apoptosis of colonic epithelial cells. Moreover, Fx effectively diminished colonic inflammation and oxidative stress in DSS-treated mice, and its mechanisms might be due to blunting the activation of NF-κB and NLRP3 inflammasome signaling pathways. Furthermore, Fx also modulates DSS-induced gut microbiota dysbiosis via recovering the richness and diversity of gut microbiota and reshaping the structure of gut microbiota, such as increasing the Firmicutes and Bacteroidota (F/B) ratio and elevating the relative abundance of some potential beneficial bacteria, including Lactobacillaceae and Lachnospiraceae. Overall, Fx might be developed as a promising functional ingredient to prevent colitis and maintain intestinal homeostasis.
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Affiliation(s)
- Yu-Hong Yang
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), No. 3501 Daxue Road, Jinan, Shandong 250353, China
- Shandong Haizhibao Ocean Science and Technology Co., Ltd., No. 259 Pinghai East Road, Rongcheng City, Shandong 264300, China
| | - Chen Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, No. 44 Wenhuaxi Road, Jinan, Shandong 250012, China
- Research Center of Translational Medicine, Jinan Central Hospital, Shandong University, No. 105 Jiefang Road, Jinan, Shandong 250013, China
| | - Yan Zheng
- Research Center of Translational Medicine, Central Hospital Affiliated to Shandong First Medical University, No. 105 Jiefang Road, Jinan, Shandong 250013, China
| | - Zi-Jian Wu
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, No. 44 Wenhuaxi Road, Jinan, Shandong 250012, China
- Research Center of Translational Medicine, Jinan Central Hospital, Shandong University, No. 105 Jiefang Road, Jinan, Shandong 250013, China
| | - Meng-Qing Zhou
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, No. 44 Wenhuaxi Road, Jinan, Shandong 250012, China
| | - Xiao-Yong Liu
- Shandong Haizhibao Ocean Science and Technology Co., Ltd., No. 259 Pinghai East Road, Rongcheng City, Shandong 264300, China
| | - Kazuo Miyashita
- Center for Industry-University Collaboration, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
| | - De-Lin Duan
- Key Lab of Breeding Biotechnology & Sustainable Aquaculture, Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, Shandong 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, No. 168 Wenhai Middle Road, Qingdao, Shandong 266237, China
| | - Lei Du
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, No. 44 Wenhuaxi Road, Jinan, Shandong 250012, China
- Research Center of Translational Medicine, Jinan Central Hospital, Shandong University, No. 105 Jiefang Road, Jinan, Shandong 250013, China
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Kynkäänniemi E, Lindén J, Ngambundit S, Saarimäki LA, Greco D, Slaba H, Lahtinen MH, Mikkonen KS, Pajari AM. Polyphenol- and Glucuronoxylan-Rich Fiber Extract from Birch ( Betula sp.) Wood Regulates Colonic Barrier Function and Cell Proliferation in Healthy Rats. J Agric Food Chem 2024; 72:3495-3505. [PMID: 38343302 DOI: 10.1021/acs.jafc.3c07757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Birch wood-derived fiber extracts containing glucuronoxylans (GX) and polyphenols show potential for various food technological applications. This study investigated the effect of two extracts, GXpoly and pureGX, differing in lignin content on colonic barrier function. Healthy rats were fed diets containing 10% GXpoly, pureGX, or cellulose for 4 weeks. Colon crypt depth was lower in the GX groups than in the control group, but in the proximal colon, the result was significant only in GXpoly. An artificial intelligence approach was established to measure the mucus content and goblet cells. In the distal colon, their amounts were higher in the control group than in the GX groups. All diets had a similar effect on the expression of the tight junction proteins occludin, claudin-1, and claudin-7. GXpoly enhanced the fecal IgA production. Our results suggest that GX-rich extracts could support the colonic barrier and work as functional food ingredients in the future.
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Affiliation(s)
- Emma Kynkäänniemi
- Department of Food and Nutrition, University of Helsinki, 00014 Helsinki, Finland
| | - Jere Lindén
- Department of Veterinary Biosciences, and Finnish Centre for Laboratory Animal Pathology (FCLAP), Helsinki Institute of Life Science (HiLIFE), University of Helsinki, 00014 Helsinki, Finland
| | - Suchaya Ngambundit
- Department of Food and Nutrition, University of Helsinki, 00014 Helsinki, Finland
| | - Laura A Saarimäki
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland
| | - Dario Greco
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00014 Helsinki, Finland
| | - Hana Slaba
- Department of Food and Nutrition, University of Helsinki, 00014 Helsinki, Finland
| | - Maarit H Lahtinen
- Department of Food and Nutrition, University of Helsinki, 00014 Helsinki, Finland
| | - Kirsi S Mikkonen
- Department of Food and Nutrition, University of Helsinki, 00014 Helsinki, Finland
- Helsinki Institute of Sustainability Science (HELSUS), University of Helsinki, P.O. Box 65, Helsinki 00014, Finland
| | - Anne-Maria Pajari
- Department of Food and Nutrition, University of Helsinki, 00014 Helsinki, Finland
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Zeng X, Li J, Wang X, Liu L, Shen S, Li N, Wang Z, Yuan Y, Yue T. Regulation of Gut Microbiota and Microbial Metabolome of Kefir Supernatant against Fusobacterium nucleatum and DSS-Coinduced Colitis. J Agric Food Chem 2024; 72:3536-3548. [PMID: 38346349 DOI: 10.1021/acs.jafc.3c08050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
The aim of this study was to investigate the intervention effect of kefir supernatant (KS) on the initiation and progression of an ulcerative colitis (UC) murine model. We established an UC murine model by orally administrating with 109 CFUs of Fusobacterium nucleatum for 3 weeks and 3% dextran sulfate sodium (DSS) treatment in the third week. KS was used to intervene in this colitis model. Our results showed that KS supplementation ameliorated the symptoms, restrained the secretion of pro-inflammatory cytokines (TNF-α, IL-6, and IL-17F), promoted the release of anti-inflammatory cytokines (IL-4 and IL-10), and ameliorated oxidative stress. Furthermore, the increased number of goblet cells and upregulated expression of MUC2, occludin and claudin-1 indicated that the colon barrier was protected by KS. Additionally, KS supplementation mitigated gut microbiota dysbiosis in the UC murine model, leading to an increase in the abundance of Blautia and Akkermansia and a decrease in the level of Bacteroides. The altered gut microbiota also affected colon metabolism, with differential metabolites mainly associated with the biosynthesis of the l-arginine pathway. This study revealed that KS supplementation restored the community structure of gut microbiota, altered the biosynthesis of l-arginine, and thereby modulated the process of colonic inflammation.
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Affiliation(s)
- Xuejun Zeng
- College of Food Science and Technology, Northwest University, Xi'an 710069, China
- College of Food Science and Engineering, Northwest A & F University, Yangling, Xianyang 712100, China
| | - Jiahui Li
- College of Food Science and Engineering, Northwest A & F University, Yangling, Xianyang 712100, China
| | - Xin Wang
- College of Health Management, Shangluo University, Shangluo 726000, China
| | - Ling Liu
- College of Food Science and Engineering, Northwest A & F University, Yangling, Xianyang 712100, China
| | - Shiqi Shen
- College of Food Science and Engineering, Northwest A & F University, Yangling, Xianyang 712100, China
| | - Nanyang Li
- College of Food Science and Engineering, Northwest A & F University, Yangling, Xianyang 712100, China
| | - Zhouli Wang
- College of Food Science and Engineering, Northwest A & F University, Yangling, Xianyang 712100, China
| | - Yahong Yuan
- College of Food Science and Technology, Northwest University, Xi'an 710069, China
- College of Food Science and Engineering, Northwest A & F University, Yangling, Xianyang 712100, China
| | - Tianli Yue
- College of Food Science and Technology, Northwest University, Xi'an 710069, China
- College of Food Science and Engineering, Northwest A & F University, Yangling, Xianyang 712100, China
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Li W, Zhang Y, Chen M, Guo X, Ding Z. The antioxidant strain Lactiplantibacillus plantarum AS21 and Clostridium butyricum ameliorate DSS-induced colitis in mice by remodeling the assembly of intestinal microbiota and improving gut functions. Food Funct 2024; 15:2022-2037. [PMID: 38289370 DOI: 10.1039/d3fo05337g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Probiotics are known for their beneficial effects on improving intestinal function by alleviating the gut microbial diversity. However, the influences of antioxidant lactic acid bacteria (LAB) and anti-inflammatory Clostridium butyricum (CB) on ameliorating enteritis remain unclear. In this study, we investigated the effects of the antioxidant strain Lactiplantibacillus plantarum AS21 and CB alone, or in combination on intestinal microbiota, barrier function, oxidative stress and inflammation in mice with DSS-induced colitis. All probiotic treatments relieved the pathological development of colitis by improving the integrity of the intestinal mucosal barrier and the length of the colon. The probiotics also suppressed inflammation and oxidative stress by improving gut short-chain fatty acids and inhibiting the p38-MAPK/NF-κB pathway in colon tissues. According to the meta-network analysis, three distinct modules containing sensitive OTUs of the gut bacterial community specific to the control, DSS and DSS + probiotics groups were observed, and unlike the other two modules, Lachnospiraceae and Clostridia dominated the sensitive OTUs in the DSS + probiotics group. In addition, administration of the present probiotics particularly increased antioxidant and anti-inflammatory microbes Muribaculaceae, Bifidobacterium, Prevotellaceae and Alloprevotella. Furthermore, combined probiotic strain treatment showed a more stable anti-colitis effect than a single probiotic strain. Collectively, the present probiotics exhibited protective effects against colitis by suppressing the inflammation and oxidative damage in the colon, improving the gut microbiota and their functions, and consequently preventing the gut leak. The results indicate that the combination of the antioxidant properties of LAB and the anti-inflammatory properties of CB as nutritional intervention and adjuvant therapy could be an effective strategy to prevent and alleviate colitis.
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Affiliation(s)
- Wenyuan Li
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
- Probiotics and Life Health Institute, Lanzhou University, Lanzhou 730000, PR China
| | - Ying Zhang
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
- Probiotics and Life Health Institute, Lanzhou University, Lanzhou 730000, PR China
| | - Mengyan Chen
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
- Probiotics and Life Health Institute, Lanzhou University, Lanzhou 730000, PR China
| | - Xusheng Guo
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
- Probiotics and Life Health Institute, Lanzhou University, Lanzhou 730000, PR China
| | - Zitong Ding
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
- Probiotics and Life Health Institute, Lanzhou University, Lanzhou 730000, PR China
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Nishiyama K, Kato Y, Nishimura A, Mi X, Nagata R, Mori Y, Azuma YT, Nishida M. Pharmacological Activation of TRPC6 Channel Prevents Colitis Progression. Int J Mol Sci 2024; 25:2401. [PMID: 38397074 PMCID: PMC10889536 DOI: 10.3390/ijms25042401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/25/2024] Open
Abstract
We recently reported that transient receptor potential canonical (TRPC) 6 channel activity contributes to intracellular Zn2+ homeostasis in the heart. Zn2+ has also been implicated in the regulation of intestinal redox and microbial homeostasis. This study aims to investigate the role of TRPC6-mediated Zn2+ influx in the stress resistance of the intestine. The expression profile of TRPC1-C7 mRNAs in the actively inflamed mucosa from inflammatory bowel disease (IBD) patients was analyzed using the GEO database. Systemic TRPC3 knockout (KO) and TRPC6 KO mice were treated with dextran sulfate sodium (DSS) to induce colitis. The Zn2+ concentration and the mRNA expression levels of oxidative/inflammatory markers in colon tissues were quantitatively analyzed, and gut microbiota profiles were compared. TRPC6 mRNA expression level was increased in IBD patients and DSS-treated mouse colon tissues. DSS-treated TRPC6 KO mice, but not TRPC3 KO mice, showed severe weight loss and increased disease activity index compared with DSS-treated WT mice. The mRNA abundances of antioxidant proteins were basically increased in the TRPC6 KO colon, with changes in gut microbiota profiles. Treatment with TRPC6 activator prevented the DSS-induced colitis progression accompanied by increasing Zn2+ concentration. We suggest that TRPC6-mediated Zn2+ influx activity plays a key role in stress resistance against IBD, providing a new strategy for treating colitis.
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Affiliation(s)
- Kazuhiro Nishiyama
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan; (K.N.); (Y.K.); (X.M.)
- Laboratory of Prophylactic Pharmacology, Osaka Metropolitan University Graduate School of Veterinary Science, Osaka 598-8531, Japan;
| | - Yuri Kato
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan; (K.N.); (Y.K.); (X.M.)
| | - Akiyuki Nishimura
- National Institute for Physiological Sciences (NIPS), National Institutes of Natural Sciences, Okazaki 444-8787, Japan;
- Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Okazaki 444-8787, Japan
- SOKENDAI (Department of Physiological Sciences, School of Life Science, The Graduate University for Advanced Studies), Okazaki 444-8787, Japan
| | - Xinya Mi
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan; (K.N.); (Y.K.); (X.M.)
| | - Ryu Nagata
- Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan;
| | - Yasuo Mori
- Graduate School of Engineering, Kyoto University, Kyoto 615-8530, Japan;
| | - Yasu-Taka Azuma
- Laboratory of Prophylactic Pharmacology, Osaka Metropolitan University Graduate School of Veterinary Science, Osaka 598-8531, Japan;
| | - Motohiro Nishida
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan; (K.N.); (Y.K.); (X.M.)
- National Institute for Physiological Sciences (NIPS), National Institutes of Natural Sciences, Okazaki 444-8787, Japan;
- Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Okazaki 444-8787, Japan
- SOKENDAI (Department of Physiological Sciences, School of Life Science, The Graduate University for Advanced Studies), Okazaki 444-8787, Japan
- Department of Physiology, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Liu M, Zhu D, Yan H, Dong Z, Zhang J, Kong N, Zhang G, Xu Q, Han T, Ke P, Liu C. Combined administration of anisodamine and neostigmine alleviated colitis by inducing autophagy and inhibiting inflammation. PLoS One 2024; 19:e0291543. [PMID: 38354108 PMCID: PMC10866466 DOI: 10.1371/journal.pone.0291543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 08/31/2023] [Indexed: 02/16/2024] Open
Abstract
Our previous work demonstrated that the anisodamine (ANI) and neostigmine (NEO) combination produced an antiseptic shock effect and rescued acute lethal crush syndrome by activating the α7 nicotinic acetylcholine receptor (α7nAChR). This study documents the therapeutic effect and underlying mechanisms of the ANI/NEO combination in dextran sulfate sodium (DSS)-induced colitis. Treating mice with ANI and NEO at a ratio of 500:1 alleviated the DSS-induced colitis symptoms, reduced body weight loss, improved the disease activity index, enhanced colon length, and alleviated colon inflammation. The combination treatment also enhanced autophagy in the colon of mice with DSS-induced colitis and lipopolysaccharide/DSS-stimulated Caco-2 cells. Besides, the ANI/NEO treatment significantly reduced INF-γ, TNF-α, IL-6, and IL-22 expression in colon tissues and decreased TNF-α, IL-1β, and IL-6 mRNA levels in Caco-2 cells. Meanwhile, the autophagy inhibitor 3-methyladenine and ATG5 siRNA attenuated these effects. Furthermore, 3-methyladenine (3-MA) and the α7nAChR antagonist methyllycaconitine (MLA) weakened the ANI/NEO-induced protection on DSS-induced colitis in mice. Overall, these results indicate that the ANI/NEO combination exerts therapeutic effects through autophagy and α7nAChR in a DSS-induced colitis mouse model.
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Affiliation(s)
- Mengzhen Liu
- Department of Pharmacy, Second Military Medical University/Navy Military Medical University, Shanghai, China
- Air Force Hangzhou Special Service Recuperation Center Sanatorium Area 4, Nanjing, China
| | - Danni Zhu
- Department of Pharmacy, Second Military Medical University/Navy Military Medical University, Shanghai, China
| | - Hui Yan
- Department of Pharmacy, Second Military Medical University/Navy Military Medical University, Shanghai, China
| | - Zhiwei Dong
- Department of General Surgery, Air Force Medical Center, PLA, Beijing, China
| | - Jingjing Zhang
- Department of Pharmacy, Second Military Medical University/Navy Military Medical University, Shanghai, China
| | - Ni Kong
- Department of Pharmacy, Second Military Medical University/Navy Military Medical University, Shanghai, China
| | - Guangyu Zhang
- Department of Pharmacy, Second Military Medical University/Navy Military Medical University, Shanghai, China
| | - Qin Xu
- Department of Pharmacy, Second Military Medical University/Navy Military Medical University, Shanghai, China
| | - Ting Han
- Department of Pharmacy, Second Military Medical University/Navy Military Medical University, Shanghai, China
| | - Ping Ke
- Department of Pharmacy, Second Military Medical University/Navy Military Medical University, Shanghai, China
- Air Force Hangzhou Special Service Recuperation Center Sanatorium Area 4, Nanjing, China
| | - Chong Liu
- Department of Pharmacy, Second Military Medical University/Navy Military Medical University, Shanghai, China
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Gao R, Ren Y, Xue P, Sheng Y, Yang Q, Dai Y, Zhang X, Lin Z, Liu T, Geng Y, Xue Y. Protective Effect of the Polyphenol Ligustroside on Colitis Induced with Dextran Sulfate Sodium in Mice. Nutrients 2024; 16:522. [PMID: 38398846 PMCID: PMC10891938 DOI: 10.3390/nu16040522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/05/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Dietary polyphenols are reported to alleviate colitis by interacting with gut microbiota which plays an important role in maintaining the integrity of the intestinal barrier. As a type of dietary polyphenol, whether ligustroside (Lig) could alleviate colitis has not been explored yet. Here, we aimed to determine if supplementation of ligustroside could improve colitis. We explored the influence of ligustroside intake with different dosages on colitis induced with dextran sulfate sodium (DSS). Compared to the DSS group, supplementation of ligustroside could reduce body weight (BW) loss, decrease disease activity indices (DAI), and relieve colon damage in colitis mice. Furthermore, ligustroside intake with 2 mg/kg could decrease proinflammatory cytokine concentrations in serum and increase immunoglobulin content and antioxidant enzymes in colon tissue. In addition, supplementation of ligustroside (2 mg/kg) could reduce mucus secretion and prevent cell apoptosis. Also, changes were revealed in the bacterial community composition, microbiota functional profiles, and intestinal metabolite composition following ligustroside supplementation with 2 mg/kg using 16S rRNA sequencing and non-targeted lipidomics analysis. In conclusion, the results showed that ligustroside was very effective in preventing colitis through reduction in inflammation and the enhancement of the intestinal barrier. Furthermore, supplementation with ligustroside altered the gut microbiota and lipid composition of colitis mice.
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Affiliation(s)
- Ruonan Gao
- Department of Gastroenterology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China
| | - Yilin Ren
- Department of Gastroenterology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Industrial Biotechnology of Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Peng Xue
- School of Medicine, Nantong University, Nantong 226001, China
| | - Yingyue Sheng
- Department of Gastroenterology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - Qin Yang
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China
| | - Yuanyuan Dai
- Department of Gastroenterology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - Xiaoyue Zhang
- Department of Gastroenterology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China
| | - Ziming Lin
- Department of Gastroenterology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China
| | - Tianhao Liu
- Department of Gastroenterology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - Yan Geng
- School of Life Science and Health Engineering, Jiangnan University, Wuxi 214122, China;
| | - Yuzheng Xue
- Department of Gastroenterology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
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48
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Zhao M, Qiao C, Cui Z, Zhang W, Yang S, Zhu C, Du F, Ning T, Xie S, Liu S, Li P, Xu J, Zhu S. Moluodan promotes DSS-induced intestinal inflammation involving the reprogram of macrophage function and polarization. J Ethnopharmacol 2024; 320:117393. [PMID: 37952735 DOI: 10.1016/j.jep.2023.117393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 11/03/2023] [Indexed: 11/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Moluodan (MLD) is a traditional Chinese medicine that is composed of 18 herbal medicines based on traditional Chinese medicine theory and practice. It has long been used in treating chronic gastritis and its components were traditionally used in dealing with intestinal inflammation. However, its specific pharmacological mechanism is still unclear. AIM OF THE STUDY The upper and lower digestive tract diseases are correlated. In clinical practice, some chronic gastritis patients are also accompanied by intestinal inflammation. Due to the unclear pharmacological mechanism of MLD and its effect on intestinal inflammation, there is doubt whether MLD is still suitable for this type of patient. Therefore, this study aims to elucidate the pharmacological mechanism of MLD and identify its effect in the mouse model of intestinal inflammation. MATERIALS AND METHODS Mice intestinal inflammation model was induced by 2.5% dextran sulfate sodium (DSS). The mice were given different concentrations of MLD via oral gavage (0.25, 0.5 g/kg b.w.). Pharmacodynamic indicators were assessed including body weight, colon length, disease activity index (DAI), bloody stool score, inflammatory factors, histological change, etc. RAW264.7 macrophage cells were used for in vitro experiments that illuminated the role of MLD in reprogramming macrophage function and polarization. RT-qPCR and western blots were performed to measure the mRNA and protein levels of macrophage polarization marker and effector molecules. The functions of polarized macrophages were tested using ROS detection probes, Edu assay and wound healing assay. RESULTS The administration of MLD exhibited obvious hemostatic effects, while unexpectedly accentuating various aspects of the DSS-induced intestinal inflammation in mice, including increased body weight loss and colon shortening, elevated disease activity index, and intensified colonic tissue damage. Additionally, MLD treatment induced more severe inflammatory cell infiltration and higher proinflammatory cytokines expression in colon tissue. Further results showed that MLD promoted M1 macrophage polarization and stimulated its proinflammatory cytokines expression, while only slightly affecting the function of M2 macrophage. Western blot analysis revealed that MLD induced the phosphorylation of AKT and NF-κB. The polarization of M1 macrophages induced by MLD was inhibited by either an Akt inhibitor or a NF-κB inhibitor. CONCLUSIONS Although MLD has an obvious hemostatic effect, it generally promoted the severity of DSS-induced colitis in mice by facilitating macrophage polarization toward the M1 phenotype through the AKT/NF-κB pathway. Our study suggested that MLD may not be suitable for colitis, especially during the acute inflammation stage.
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Affiliation(s)
- Mengran Zhao
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, State Key Laboratory of Digestive Health, Beijing, 100050, China
| | - Chen Qiao
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, State Key Laboratory of Digestive Health, Beijing, 100050, China
| | - Zilu Cui
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, State Key Laboratory of Digestive Health, Beijing, 100050, China
| | - Wen Zhang
- Department of Gastroenterology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Shuyue Yang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, State Key Laboratory of Digestive Health, Beijing, 100050, China
| | - Congmin Zhu
- School of Biomedical Engineering, Capital Medical University, Beijing Key Laboratory of Fundamental Research on Biomechanics in Clinical Application, Beijing, China
| | - Feng Du
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, State Key Laboratory of Digestive Health, Beijing, 100050, China
| | - Tingting Ning
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, State Key Laboratory of Digestive Health, Beijing, 100050, China
| | - Sian Xie
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, State Key Laboratory of Digestive Health, Beijing, 100050, China
| | - Si Liu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, State Key Laboratory of Digestive Health, Beijing, 100050, China
| | - Peng Li
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, State Key Laboratory of Digestive Health, Beijing, 100050, China
| | - Junxuan Xu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, State Key Laboratory of Digestive Health, Beijing, 100050, China.
| | - Shengtao Zhu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, State Key Laboratory of Digestive Health, Beijing, 100050, China.
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Sun Z, Huang S, Yan X, Zhang X, Hao Y, Jiang L, Dai Z. Living, Heat-Killed Limosilactobacillus mucosae and Its Cell-Free Supernatant Differentially Regulate Colonic Serotonin Receptors and Immune Response in Experimental Colitis. Nutrients 2024; 16:468. [PMID: 38398793 PMCID: PMC10893098 DOI: 10.3390/nu16040468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 01/27/2024] [Accepted: 01/29/2024] [Indexed: 02/25/2024] Open
Abstract
Lactobacillus species have been shown to alleviate gut inflammation and oxidative stress. However, the effect of different lactobacilli components on gut inflammation has not been well studied. This study aims to identify the differences in the effect and mechanisms of different forms and components of Limosilactobacillus mucosae (LM) treatment in the alleviation of gut inflammation using a colitis mouse model that is induced by dextran sodium sulfate (DSS). Seventy-two C57BL/6 mice were divided into six groups: control, DSS, live LM+DSS (LM+DSS), heat-killed LM+DSS (HKLM+DSS), LM cell-free supernatant + DSS (LMCS+DSS), and MRS medium + DSS (MRS+DSS). The mice were treated with different forms and components of LM for two weeks before DSS treatment. After that, the mice were sacrificed for an assessment of their levels of inflammatory cytokines, serotonin (5-HT) receptors (HTRs), and tryptophan metabolites. The results showed that, compared to other treatments, LMCS was more effective (p < 0.05) in the alleviation of DSS-induced body weight loss and led to an increase in the disease activity index score. All three forms and components of LM increased (p < 0.05) the levels of indole-3-acetic acid but reduced (p < 0.05) the levels of 5-HT in the colon. HKLM or LMCS reduced (p < 0.05) the percentages of CD3+CD8+ cytotoxic T cells but increased (p < 0.05) the percentages of CD3+CD4+ T helper cells in the spleen. LM or HKLM increased (p < 0.05) abundances of CD4+Foxp3+ regulatory T cells in the spleen. The LM and LMCS treatments reduced (p < 0.05) the expression of the pro-inflammatory cytokines Il6 and Il17a. The mice in the HKLM+DSS group had higher (p < 0.05) mRNA levels of the anti-inflammatory cytokine Il10, the cell differentiation and proliferation markers Lgr5 and Ki67, the 5-HT degradation enzyme Maoa, and HTRs (Htr1a, Htr2a, and Htr2b) in the colon. All three forms and components of LM reduced the phosphorylation of STAT3. The above findings can help to optimize the functionality of probiotics and develop new dietary strategies that aid in the maintenance of a healthy gut.
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Affiliation(s)
- Zhiyuan Sun
- State Key Laboratory of Animal Nutrition and Feeding, China Agricultural University, Beijing 100193, China; (Z.S.); (X.Y.); (X.Z.); (Y.H.); (L.J.)
| | - Siqi Huang
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
| | - Xing Yan
- State Key Laboratory of Animal Nutrition and Feeding, China Agricultural University, Beijing 100193, China; (Z.S.); (X.Y.); (X.Z.); (Y.H.); (L.J.)
| | - Xiuwen Zhang
- State Key Laboratory of Animal Nutrition and Feeding, China Agricultural University, Beijing 100193, China; (Z.S.); (X.Y.); (X.Z.); (Y.H.); (L.J.)
| | - Youling Hao
- State Key Laboratory of Animal Nutrition and Feeding, China Agricultural University, Beijing 100193, China; (Z.S.); (X.Y.); (X.Z.); (Y.H.); (L.J.)
| | - Lili Jiang
- State Key Laboratory of Animal Nutrition and Feeding, China Agricultural University, Beijing 100193, China; (Z.S.); (X.Y.); (X.Z.); (Y.H.); (L.J.)
| | - Zhaolai Dai
- State Key Laboratory of Animal Nutrition and Feeding, China Agricultural University, Beijing 100193, China; (Z.S.); (X.Y.); (X.Z.); (Y.H.); (L.J.)
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50
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Stojanović M, Todorović D, Gopčević K, Medić A, Labudović Borović M, Despotović S, Djuric D. Effects of Aerobic Treadmill Training on Oxidative Stress Parameters, Metabolic Enzymes, and Histomorphometric Changes in Colon of Rats with Experimentally Induced Hyperhomocysteinemia. Int J Mol Sci 2024; 25:1946. [PMID: 38396625 PMCID: PMC10888247 DOI: 10.3390/ijms25041946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/28/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
The aim of this study was to investigate the effects of aerobic treadmill training regimen of four weeks duration on oxidative stress parameters, metabolic enzymes, and histomorphometric changes in the colon of hyperhomocysteinemic rats. Male Wistar albino rats were divided into four groups (n = 10, per group): C, 0.9% NaCl 0.2 mL/day subcutaneous injection (s.c.) 2x/day; H, homocysteine 0.45 µmol/g b.w./day s.c. 2x/day; CPA, saline (0.9% NaCl 0.2 mL/day s.c. 2x/day) and an aerobic treadmill training program; and HPA, homocysteine (0.45 µmol/g b.w./day s.c. 2x/day) and an aerobic treadmill training program. The HPA group had an increased level of malondialdehyde (5.568 ± 0.872 μmol/mg protein, p = 0.0128 vs. CPA (3.080 ± 0.887 μmol/mg protein)), catalase activity (3.195 ± 0.533 U/mg protein, p < 0.0001 vs. C (1.467 ± 0.501 U/mg protein), p = 0.0012 vs. H (1.955 ± 0.293 U/mg protein), and p = 0.0003 vs. CPA (1.789 ± 0.256 U/mg protein)), and total superoxide dismutase activity (9.857 ± 1.566 U/mg protein, p < 0.0001 vs. C (6.738 ± 0.339 U/mg protein), p < 0.0001 vs. H (6.015 ± 0.424 U/mg protein), and p < 0.0001 vs. CPA (5.172 ± 0.284 U/mg protein)) were detected in the rat colon. In the HPA group, higher activities of lactate dehydrogenase (2.675 ± 1.364 mU/mg protein) were detected in comparison to the CPA group (1.198 ± 0.217 mU/mg protein, p = 0.0234) and higher activities of malate dehydrogenase (9.962 (5.752-10.220) mU/mg protein) were detected in comparison to the CPA group (4.727 (4.562-5.299) mU/mg protein, p = 0.0385). Subchronic treadmill training in the rats with hyperhomocysteinemia triggers the colon tissue antioxidant response (by increasing the activities of superoxide dismutase and catalase) and elicits an increase in metabolic enzyme activities (lactate dehydrogenase and malate dehydrogenase). This study offers a comprehensive assessment of the effects of aerobic exercise on colonic tissues in a rat model of hyperhomocysteinemia, evaluating a range of biological indicators including antioxidant enzyme activity, metabolic enzyme activity, and morphometric parameters, which suggested that exercise may confer protective effects at both the physiological and morphological levels.
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Affiliation(s)
- Marija Stojanović
- Institute of Medical Physiology "Richard Burian", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Dušan Todorović
- Institute of Medical Physiology "Richard Burian", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Kristina Gopčević
- Institute of Chemistry in Medicine "Petar Matavulj", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Ana Medić
- Institute of Chemistry in Medicine "Petar Matavulj", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Milica Labudović Borović
- Institute of Histology and Embryology "Aleksandar Ð. Kostić", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Sanja Despotović
- Institute of Histology and Embryology "Aleksandar Ð. Kostić", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Dragan Djuric
- Institute of Medical Physiology "Richard Burian", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
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