1
|
Ruan Y, Zhu X, Shen J, Chen H, Zhou G. Mechanism of Nicotiflorin in San-Ye-Qing rhizome for anti-inflammatory effect in ulcerative colitis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 129:155564. [PMID: 38554577 DOI: 10.1016/j.phymed.2024.155564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 03/14/2024] [Accepted: 03/22/2024] [Indexed: 04/01/2024]
Abstract
BACKGROUND The incidence of ulcerative colitis (UC) is on the rise globally and the development of drugs targeting UC is urgent. Finding the target of action of natural products is important for drug discovery, elucidation of drug action mechanism, and disease mechanism. San-Ye-Qing (SYQ), is an ancient herbal medicine, but whether the powder of its rhizome has pharmacological effects against UC and its mechanism of action are not clear. PURPOSE To evaluate the therapeutic effectiveness of rhizome powder of SYQ in treating UC, and conduct an isolation and characterization of the chemical constituents of the powder. Further, screen the most potent compounds among them and determine the potential mechanism for treating UC. METHODS In vivo, the therapeutic effect of SYQ's rhizome powder on UC was assessed by mice's body weight, DAI score, colon length, tissue MPO activity, serum inflammatory markers, etc. Additionally, HPLC was used to isolate and identify the specific chemical components of SYQ's rhizome powder. Then, the most effective compounds and their therapeutic targets were analysed and screened in SYQ rhizome powder using network pharmacology, combined with CCK-8 assay, NO release assay and molecular docking assay, in conjunction with CETSA, DARTS, SPR and enzyme activity assay. Finally, the biological effects of the key compound on the targets were validated using Western blot and ELISA. RESULTS In vivo, SYQ rhizome powder effectively restored mice's body weight, lowered DAI and pathological score, downregulated the expression of inflammatory biomarkers, and restored colon length, as well as the colonic epithelial and mucus barriers. Afterward, 9 compounds were isolated and identified from the powder of the rhizomes of SYQ by HPLC. Nicotiflorin is the primary compound in SYQ with the highest concentration. According to both CCK-8 and NO release tests, Nicotiflorin is also the most efficacious compound. Combined with network pharmacological prediction, molecular docking analysis, CETSA, DARTS, SPR and enzyme activity assay, Nicotiflorin may ultimately suppress inflammation by targeting p65 and inhibiting the NF-κB pathway, thereby attenuating the activation of NLRP3 inflammasome. To verify this conclusion, Western blot and ELISA experiments were conducted. CONCLUSIONS Our results suggest that the extract from SYQ rhizomes has therapeutic properties for UC. Its active ingredient Nicotiflorin exerted potent anti-UC effects by binding to p65 and inhibiting the activation of NF-κB and NLRP3 inflammasomes.
Collapse
Affiliation(s)
- Yun Ruan
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong University, NO.20, Xisi Road, Nantong 226001, Jiangsu, China
| | - Xiaolin Zhu
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong University, NO.20, Xisi Road, Nantong 226001, Jiangsu, China
| | - Jianbo Shen
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong University, NO.20, Xisi Road, Nantong 226001, Jiangsu, China
| | - Hao Chen
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong University, NO.20, Xisi Road, Nantong 226001, Jiangsu, China.
| | - Guoxiong Zhou
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong University, NO.20, Xisi Road, Nantong 226001, Jiangsu, China.
| |
Collapse
|
2
|
Zhang T, Zhao L, Xu M, Jiang P, Zhang K. Moringin alleviates DSS-induced ulcerative colitis in mice by regulating Nrf2/NF-κB pathway and PI3K/AKT/mTOR pathway. Int Immunopharmacol 2024; 134:112241. [PMID: 38761782 DOI: 10.1016/j.intimp.2024.112241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 04/23/2024] [Accepted: 05/08/2024] [Indexed: 05/20/2024]
Abstract
Ulcerative colitis (UC) is a main form of inflammatory bowel disease (IBD), which is a chronic and immune-mediated inflammatory disease. Moringin (MOR) is an isothiocyanate isolated from Moringa oleifera Lam., and has been recognized as a promising potent drug for inflammatory diseases and antibacterial infections. The present study investigated the role of moringin in dextran sulfate sodium (DSS)-induced UC mice. Mouse colitis was induced by adding DSS to the drinking water for seven consecutive days. Our experimental results showed that MOR relieves DSS-induced UC in mice by increasing body weight and colonic length, and reducing the disease activity index and histological injury. Mechanistically, MOR improves intestinal barrier function by increasing the expression of tight junction proteins (TJPs) and enhancing the secretion of mucin in DSS-induced mice. MOR inhibits inflammatory response and intestinal damage by regulating Nrf2/NF-κB signaling pathway and modulating the PI3K/AKT/mTOR pathway. Furthermore, in Nrf2 knockout (Nrf2-/-) mice, the protective effects of MOR on DSS-induced UC were abolished. Meanwhile, treatment with MOR reduced inflammation and cell damage via regulating Nrf2/NF-κB pathway in a lipopolysaccharide (LPS)-induced inflammation model of Caco-2 cells. In contrast, ML385, an Nrf2 inhibitor, might eliminate the protection provided by MOR. Notably, treatment with MOR significantly up-regulated the expression of peroxisome proliferator-activated receptor-γ (PPAR-γ), suggesting that MOR may be a potential PPAR-γ activator. In conclusion, MOR exerts protective effect in UC by improving intestinal barrier function, regulating Nrf2/NF-κB and PI3K/AKT/mTOR signaling pathways, and another effect associated with the regulation of PPAR-γ expression.
Collapse
Affiliation(s)
- Tongbo Zhang
- Department of General Surgery, The Second Hospital of Jilin University, Jilin University, Changchun, China
| | - Linxian Zhao
- Department of General Surgery, The Second Hospital of Jilin University, Jilin University, Changchun, China
| | - Meng Xu
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, China
| | - Peng Jiang
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, China
| | - Kai Zhang
- Department of General Surgery, The Second Hospital of Jilin University, Jilin University, Changchun, China.
| |
Collapse
|
3
|
Lu S, Xu Y, Zhang H, Liu Z, Xu J, Zheng B, Shi D, Qiu F. Glycyrol Relieves Ulcerative Colitis by Promoting the Fusion of ZO-1 with the Cell Membrane through the Enteric Glial Cells GDNF/RET Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38860840 DOI: 10.1021/acs.jafc.4c00239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
The damage to the mechanical barrier of the intestinal mucosa is the initiating factor and the core link of the progression of ulcerative colitis (UC). Protecting the mechanical barrier of the intestinal mucosa is of great significance for improving the health status of UC patients. ZO-1 is a key scaffold protein of the mechanical barrier of the intestinal mucosa, and its fusion with the membrane of the intestinal epithelium is a necessary condition to maintain the integrity of the mechanical barrier of the intestinal mucosa. Enteric glial cells (EGCs) play an important role in the maintenance of intestinal homeostasis and have become a new target for regulating intestinal health in recent years. In this study, we found that glycyrol (GC), a representative coumarin compound isolated from Licorice (Glycyrrhiza uralensis Fisch, used for medicine and food), can alleviate UC by promoting the production of neurotrophic factor GDNF in mice EGCs. Specifically, we demonstrated that GC promotes the production of GDNF, then activates its receptor RET, promotes ZO-1 fusion with cell membranes, and protects the intestinal mucosal mechanical barrier. The results of this study can provide new ideas for the prevention and treatment of UC.
Collapse
Affiliation(s)
- Shangyun Lu
- Nutritional and Food Science Research Institute, Department of Nutrition and Food Hygiene, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
- Key Laboratory of Coal Environmental Pathogenicity and Prevention, Ministry of Education, Taiyuan 030001, China
- Center for Ecological Public Health Security of Yellow River Basin, Shanxi Medical University, Taiyuan 030001, China
| | - Yang Xu
- Nutritional and Food Science Research Institute, Department of Nutrition and Food Hygiene, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Huixia Zhang
- Nutritional and Food Science Research Institute, Department of Nutrition and Food Hygiene, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Ziling Liu
- Nutritional and Food Science Research Institute, Department of Nutrition and Food Hygiene, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Jiali Xu
- Nutritional and Food Science Research Institute, Department of Nutrition and Food Hygiene, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Bowen Zheng
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, China
| | - Dongxing Shi
- Nutritional and Food Science Research Institute, Department of Nutrition and Food Hygiene, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
- Key Laboratory of Coal Environmental Pathogenicity and Prevention, Ministry of Education, Taiyuan 030001, China
- Center for Ecological Public Health Security of Yellow River Basin, Shanxi Medical University, Taiyuan 030001, China
| | - Fubin Qiu
- Nutritional and Food Science Research Institute, Department of Nutrition and Food Hygiene, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
- Key Laboratory of Coal Environmental Pathogenicity and Prevention, Ministry of Education, Taiyuan 030001, China
- Center for Ecological Public Health Security of Yellow River Basin, Shanxi Medical University, Taiyuan 030001, China
| |
Collapse
|
4
|
Song Y, Song Q, Tan F, Wang Y, Li C, Liao S, Yu K, Mei Z, Lv L. Seliciclib alleviates ulcerative colitis by inhibiting ferroptosis and improving intestinal inflammation. Life Sci 2024; 351:122794. [PMID: 38866218 DOI: 10.1016/j.lfs.2024.122794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 05/28/2024] [Accepted: 06/04/2024] [Indexed: 06/14/2024]
Abstract
BACKGROUND Ulcerative colitis (UC) is a chronic, recurrent, non-specific inflammatory disease, and the pathogenesis of the disease remains unclear. Ferroptosis is a form of programmed cell death characterized by the accumulation of iron-dependent lipid peroxides, which are simultaneously closely related to reactive oxygen species (ROS). Although seliciclib is highly effective against immune inflammation, its mechanism on colitis is unclear. This study demonstrated that seliciclib administration partially inhibited ferroptosis, alleviating symptoms and inflammation in experimental colitis. METHODS The mouse UC model was induced by 3.0 % dextran sodium sulfate (DSS) for 7 days and treated with seliciclib (10 mg/kg) for 5 days. In the in vitro model, LPS (100 μg/mL) was used for induction and seliciclib (10 μM) was applied for 2 h. Meanwhile, appropriate histopathology, inflammatory response, oxidative stress, and ferroptosis regulators were measured. RESULTS This study primarily investigated the role of seliciclib in regulating ferroptosis in UC. Bioinformatics analysis indicated that Dual oxidase 2 (DUOX2) may serve a role involved in the ferroptosis of UC. The experimental findings demonstrated that seliciclib alleviates symptoms and inflammation in DSS-induced UC mice and partially mitigates the occurrence of ferroptosis both in vivo and in vitro, possibly through the modulation of DUOX2. CONCLUSIONS Ferroptosis is strongly associated with the development of colitis, and seliciclib plays an essential role in ferroptosis and inflammation in UC. The suppression of ferroptosis in the intestinal epithelium could be a therapeutic approach for UC.
Collapse
Affiliation(s)
- Ya Song
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China.
| | - Qian Song
- The Second College of Clinical Medicine, Chongqing Medical University, 1 Yixue Road, Yuzhong, 400016 Chongqing, China.
| | - Fangyan Tan
- Department of Nephrology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China.
| | - Yanhui Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China
| | - Chuanfei Li
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China
| | - Shengtao Liao
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China.
| | - Keqi Yu
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China
| | - Zhechuan Mei
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China.
| | - Lin Lv
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China.
| |
Collapse
|
5
|
Niu Z, Li X, Yang X, Sun Z. Protective effects of sinomenine against dextran sulfate sodium-induced ulcerative colitis in rats via alteration of HO-1/Nrf2 and inflammatory pathway. Inflammopharmacology 2024; 32:2007-2022. [PMID: 38573363 DOI: 10.1007/s10787-024-01455-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 02/28/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND Dextran Sulfate Sodium (DSS) induces ulcerative colitis (UC), a type of inflammatory bowel disease (IBD) that leads to inflammation, swelling, and ulcers in the large intestine. The aim of this experimental study is to examine how sinomenine, a plant-derived alkaloid, can prevent or reduce the damage caused by DSS in the colon and rectum of rats. MATERIAL AND METHODS Induction of ulcerative colitis (UC) in rats was achieved by orally administering a 2% Dextran Sulfate Sodium (DSS) solution, while the rats concurrently received oral administrations of sinomenine and sulfasalazine. The food, water intake was estimated. The body weight, disease activity index (DAI), colon length and spleen index estimated. Antioxidant, cytokines, inflammatory parameters and mRNA expression were estimated. The composition of gut microbiota was analyzed at both the phylum and genus levels in the fecal samples obtained from all groups of rats. RESULTS Sinomenine treatment enhanced the body weight, colon length and reduced the DAI, spleen index. Sinomenine treatment remarkably suppressed the level of NO, MPO, ICAM-1, and VCAM-1 along with alteration of antioxidant parameters such as SOD, CAT, GPx, GR and MDA. Sinomenine treatment also decreased the cytokines like TNF-α, IL-1, IL-1β, IL-6, IL-10, IL-17, IL-18 in the serum and colon tissue; inflammatory parameters viz., PAF, COX-2, PGE2, iNOS, NF-κB; matrix metalloproteinases level such as MMP-1 and MMP-2. Sinomenine significantly (P < 0.001) enhanced the level of HO-1 and Nrf2. Sinomenine altered the mRNA expression of RIP1, RIP3, DRP3, NLRP3, IL-1β, caspase-1 and IL-18. Sinomenine remarkably altered the relative abundance of gut microbiota like firmicutes, Bacteroidetes, F/B ratio, Verrucomicrobia, and Actinobacteria. CONCLUSION The results clearly indicate that sinomenine demonstrated a protective effect against DSS-induced inflammation, potentially through the modulation of inflammatory pathways and gut microbiota.
Collapse
Affiliation(s)
- Zhongbao Niu
- Department of Traditional Chinese Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Xinhong Li
- Department of Outpatient Surgery, Central Hospital Affiliated to Shandong First Medical University, No. 105 Jiefang Road, Jinan, 250013, Jinan, China
| | - Xiuhua Yang
- Department of Gastroenterology, Central Hospital Affiliated to Shandong First Medical University, No. 105 Jiefang Road, Jinan, 250013, Jinan, China
| | - Zhongwei Sun
- Department of Gastrointestinal Surgery, Jinan Central Hospital, No.105, Jiefang Road, Lixia District, Jinan, 250013, Shandong, China.
| |
Collapse
|
6
|
Zheng J, Zhang J, Zhou Y, Zhang D, Guo H, Li B, Cui S. Taurine Alleviates Experimental Colitis by Enhancing Intestinal Barrier Function and Inhibiting Inflammatory Response through TLR4/NF-κB Signaling. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:12119-12129. [PMID: 38761152 DOI: 10.1021/acs.jafc.4c00662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2024]
Abstract
Taurine (Tau) is a semiessential amino acid in mammals with preventive and therapeutic effects on several intestinal disorders. However, the exact function of taurine in ulcerative colitis (UC) is still largely unclear. In this study, we used two taurine-deficient mouse models (CSAD-/- and TauT-/- mice) to explore the influence of taurine on the progression of UC in both dextran sulfate sodium (DSS)-induced colitis and LPS-stimulated Caco-2 cells. We found that cysteine sulfinic acid decarboxylase (CSAD) and taurine transporter (TauT) expressions and taurine levels were markedly reduced in colonic tissues of mice treated with DSS. The CSAD and TauT knockouts exacerbated DSS-induced clinical symptoms and pathological damage and aggravated the intestinal barrier dysfunction and the colonic mucosal inflammatory response. Conversely, taurine pretreatment enhanced the intestinal barrier functions by increasing goblet cells and upregulating tight junction protein expression. Importantly, taurine bound with TLR4 and inhibited the TLR4/NF-κB pathway, ultimately reducing proinflammatory factors (TNF-α and IL-6) and oxidative stress. Our findings highlight the essential role of taurine in maintaining the intestinal barrier integrity and inhibiting intestinal inflammation, indicating that taurine is a promising supplement for colitis treatment.
Collapse
Affiliation(s)
- Jiaming Zheng
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, People's Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, People's Republic of China
| | - Jinglin Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, People's Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, People's Republic of China
| | - Yewen Zhou
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, People's Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, People's Republic of China
| | - Di Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, People's Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, People's Republic of China
- Institute of Reproduction and Metabolism, Yangzhou University, Yangzhou 225009, People's Republic of China
| | - Hongzhou Guo
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, People's Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, People's Republic of China
| | - Bin Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, People's Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, People's Republic of China
- Institute of Reproduction and Metabolism, Yangzhou University, Yangzhou 225009, People's Republic of China
| | - Sheng Cui
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, People's Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, People's Republic of China
- Institute of Reproduction and Metabolism, Yangzhou University, Yangzhou 225009, People's Republic of China
| |
Collapse
|
7
|
Luo Y, Fu S, Liu Y, Kong S, Liao Q, Lin L, Li H. Banxia Xiexin decoction modulates gut microbiota and gut microbiota metabolism to alleviate DSS-induced ulcerative colitis. JOURNAL OF ETHNOPHARMACOLOGY 2024; 326:117990. [PMID: 38423412 DOI: 10.1016/j.jep.2024.117990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/18/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Banxia Xiexin decoction (BXD) is a classic traditional Chinese medicine prescription for treating ulcerative colitis (UC). However, its potential mechanism of action is still unclear. AIM OF THE STUDY Reveal the correlation between the beneficial impacts of BXD on UC and the composition of the gut microbiota. MATERIALS AND METHODS The major constituents of BXD were identified using the HPLC-DAD technique. An experimental model of UC was induced in male C57BL/6 mice by administering dextran sodium sulfate (DSS). A total of 48 mice were divided into different groups, including control, model, high-dose BXD treatment, medium-dose BXD treatment, low-dose BXD treatment, and a group treated with 5-amino acid salicylic acid (5-ASA). Body weight changes and disease activity index (DAI) scores were documented; colon length, colon index, spleen index, and thymus index scores were determined; myeloperoxidase (MPO) and tumor necrosis factor-α (TNF-α) activities were assessed; and histological staining with hematoxylin-eosin and alcian blue/phosphate Schiff was performed. The immunofluorescence technique was employed to examine the presence of ZO-1 and occludin in the colon tissue. 16S rRNA sequencing was employed to assess the gut microbiota's diversity and metabolomics was utilized to examine alterations in metabolites within the gut microbiota. The impact of BXD on the gut microbiota was confirmed through fecal microbiota transplantation (FMT). RESULTS BXD exhibited a positive impact on UC mice, particularly in the high-dose BXD treatment group. The BXD group experienced weight recovery, decreased DAI scores, improved colon length, and restored of spleen and thymus index scores compared to the DSS group. Additionally, BXD alleviated colon damage and the inflammatory response while restoring intestinal barrier function. FMT in BXD-treated mice also showed therapeutic effects in UC mice. At the phylum level, the relative abundance of Desulfobacterota, Deferribacterota and Actinobacteriota increased; at the genus level, g__norank__f__Muribaculaceae, Dubosiella, Akkermansia, and Lactobacillus increased, whereas Faecalibaculum, Alloprevotella, Turicibacter, and g_Paraprevotella decreased. g__norank_f__Muribaculaceae was positively correlated with body weight and colon length and negatively with colon index scores, splenic index scores, and MPO levels; Alloprevotella was positively correlated with splenic index scores, histological scores, and TNF-α levels and negatively with thymus index scores and thymus index scores. Faecalibaculum was positively correlated with colon index scores and MPO levels. Metabolic investigations revealed 58 potential indicators, primarily associated with the metabolism of amino acids, purines, and lipids. Alloprevotella, g_Paraprevotella, and Bifidobacterium were strongly associated with metabolic pathways. CONCLUSION BXD showed beneficial therapeutic effects in UC mice. The mechanism may be by promoting the balance and variety of gut microbiota, as well as regulating the metabolism of amino acids, purines, and lipids.
Collapse
Affiliation(s)
- Yuting Luo
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Sai Fu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Yuling Liu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Shasha Kong
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Qian Liao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Longfei Lin
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Hui Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China; Institute of Traditional Chinese Medicine Health Industry, China Academy of Chinese Medical Sciences, Nanchang, 330000, China; Jiangxi Health Industry Institute of Traditional Chinese Medicine, Nanchang, 330000, China.
| |
Collapse
|
8
|
Liu Y, Bai X, Wu H, Duan Z, Zhu C, Fu R, Fan D. Ginsenoside CK Alleviates DSS-Induced IBD in Mice by Regulating Tryptophan Metabolism and Activating Aryl Hydrocarbon Receptor via Gut Microbiota Modulation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:9867-9879. [PMID: 38602268 DOI: 10.1021/acs.jafc.4c00245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Dysbiosis of gut microbiota is believed to be associated with inflammatory bowel disease (IBD). Ginsenoside compound K (CK), the main metabolite of Panax ginseng ginsenoside, has proven effective as an anti-inflammatory agent in IBD. However, the mechanisms by which CK modulates gut microbiota to ameliorate IBD remain poorly understood. Herein, CK demonstrated the potential to suppress the release of proinflammatory cytokines by gut microbiota modulation. Notably, supplementation with CK promoted the restoration of a harmonious balance in gut microbiota, primarily by enhancing the populations of Lactobacillus and Akkermansia. Furthermore, CK considerably elevated the concentrations of tryptophan metabolites derived from Lactobacillus that could activate the aryl hydrocarbon receptor. Overall, the promising alleviative efficacy of CK primarily stemmed from the promotion of Lactobacillus growth and production of tryptophan metabolites, suggesting that CK should be regarded as a prospective prebiotic agent for IBD in the future.
Collapse
Affiliation(s)
- Yuan Liu
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Xue Bai
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Huanyan Wu
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Zhiguang Duan
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Chenhui Zhu
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Rongzhan Fu
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Daidi Fan
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| |
Collapse
|
9
|
Lee HR, Jeong YJ, Park SA, Kim HJ, Heo TH. Geraniin Alleviates Inflammation in Caco-2 Cells and Dextran Sulfate Sodium-Induced Colitis Mice by Targeting IL-1β. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:7882-7893. [PMID: 38530797 DOI: 10.1021/acs.jafc.3c09396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
IL-1β is an important cytokine implicated in the progression of inflammatory bowel disease (IBD) and intestinal barrier dysfunction. The polyphenolic compound, geraniin, possesses bioactive properties, such as antitumor, antioxidant, anti-inflammatory, antihypertensive, and antiviral activities; however, its IL-1β-targeted anticolitis activity remains unclear. Here, we evaluated the inhibitory effect of geraniin in IL-1β-stimulated Caco-2 cells and a dextran sulfate sodium (DSS)-induced colitis mouse model. Geraniin blocked the interaction between IL-1β and IL-1R by directly binding to IL-1β and inhibited the IL-1β activity. It suppressed IL-1β-induced intestinal tight junction damage in human Caco-2 cells by inhibiting IL-1β-mediated MAPK, NF-kB, and MLC activation. Moreover, geraniin administration effectively reduced colitis symptoms and attenuated intestinal barrier injury in mice by suppressing elevated intestinal permeability and restoring tight junction protein expression through the inhibition of MAPK, NF-kB, and MLC activation. Thus, geraniin exhibits anti-IL-1β activity and anticolitis effect by hindering the IL-1β and IL-1R interaction and may be a promising therapeutic anti-IL-1β agent for IBD treatment.
Collapse
Affiliation(s)
- Hae-Ri Lee
- Laboratory of Pharmaco-Immunology, Integrated Research Institute of Pharmaceutical Sciences, BK21 PLUS Team for Creative Leader Program for Pharmacomics-Based Future Pharmacy, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Republic of Korea
| | - Young-Jin Jeong
- Laboratory of Pharmaco-Immunology, Integrated Research Institute of Pharmaceutical Sciences, BK21 PLUS Team for Creative Leader Program for Pharmacomics-Based Future Pharmacy, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Republic of Korea
| | - Sun-Ae Park
- Laboratory of Pharmaco-Immunology, Integrated Research Institute of Pharmaceutical Sciences, BK21 PLUS Team for Creative Leader Program for Pharmacomics-Based Future Pharmacy, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Republic of Korea
| | - Hee Jung Kim
- Laboratory of Pharmaco-Immunology, Integrated Research Institute of Pharmaceutical Sciences, BK21 PLUS Team for Creative Leader Program for Pharmacomics-Based Future Pharmacy, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Republic of Korea
| | - Tae-Hwe Heo
- Laboratory of Pharmaco-Immunology, Integrated Research Institute of Pharmaceutical Sciences, BK21 PLUS Team for Creative Leader Program for Pharmacomics-Based Future Pharmacy, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Republic of Korea
| |
Collapse
|
10
|
Zhang Y, Li J, Han X, Jiang H, Wang J, Wang M, Zhang X, Zhang L, Hu J, Fu Z, Shi L. Qingchang Wenzhong Decoction ameliorates intestinal inflammation and intestinal barrier dysfunction in ulcerative colitis via the GC-C signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 322:117503. [PMID: 38043755 DOI: 10.1016/j.jep.2023.117503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 12/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ulcerative colitis (UC) is an idiopathic, chronic inflammatory disorder of the colonic mucosa, accompanied with abdominal pain, and bloody diarrhea. Currently, clinical treatment options for UC are limited. Qingchang Wenzhong Decoction (QCWZD) is an effective prescription of traditional Chinese medicine for the treatment of UC. However, the mechanism of QCWZD in alleviating intestinal barrier dysfunction in UC has not been clearly explained. AIM OF THE STUDY To determine the mechanism whereby QCWZD promotes the recovery of intestinal barrier dysfunction in UC. MATERIALS AND METHODS A secondary analysis of colonic mucosa from UC patients acquired from a prior RCT clinical trial was performed. The effects of QCWZD on intestinal mucus and mechanical barriers in UC patients were evaluated using colon tissue paraffin-embedded sections from UC patients. The mechanism was further investigated by in vivo and in vitro experiments. UC mice were established in sterile water with 3.0% dextran sodium sulfate (DSS). Meanwhile, mice in the treatment group were dosed with QCWZD or mesalazine. In vitro, an intestinal barrier model was constructed using Caco-2 and HT29 cells in co-culture. GC-C plasmid was used to overexpress/knock down GC-C to clarify the target of QCWZD. HE, AB-PAS, ELISA, immunohistochemistry and immunofluorescence assays were used to assess the level of colonic inflammation and intestinal barrier integrity. Rt-qPCR, Western Blot were used to detect the expression of genes and proteins related to GC-C signaling pathway. Molecular docking was used to simulate the binding sites of major components of QCWZD to GC-C. RESULTS In UC patients, QCWZD increased mucus secretion, goblet cell number, and promoted MUC2 and ZO-1 expression. QCWZD accelerated the recovery of UC mice from DSS-induced inflammation, including weight gain, reduced disease activity index (DAI) scores, colon length recovery, and histological healing. QCWZD promoted mucus secretion and increased ZO-1 expression in in vivo and in vitro experiments, thereby repairing mucus mechanical barrier damage. The effects of QCWZD are mediated through regulation of the GC-C signaling pathway, which in turn affects CFTR phosphorylation and MUC2 expression to promote mucus secretion, while inhibiting the over-activation of MLCK and repairing tight junctions to maintain the integrity of the mechanical barrier. Molecular docking results demonstrate the binding of the main components of QCWZD to GC-C. CONCLUSION Our study demonstrated that QCWZD modulates the GC-C signaling pathway to promote remission of mucus-mechanical barrier damage in the UC. The clarification of the mechanism of QCWZD holds promise for the development of new therapies for UC.
Collapse
Affiliation(s)
- Yang Zhang
- Department of Gastroenterology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China; Beijing University of Chinese Medicine, Beijing, China
| | - Junxiang Li
- Department of Gastroenterology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xiao Han
- Department of Gastroenterology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China; Beijing University of Chinese Medicine, Beijing, China
| | - Hui Jiang
- Department of Gastroenterology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China; Beijing University of Chinese Medicine, Beijing, China
| | - Jiali Wang
- Department of Gastroenterology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China; Beijing University of Chinese Medicine, Beijing, China
| | - MuYuan Wang
- Department of Gastroenterology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China; Beijing University of Chinese Medicine, Beijing, China
| | - Xiaosi Zhang
- Department of Gastroenterology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China; Beijing University of Chinese Medicine, Beijing, China
| | - Liming Zhang
- Department of Gastroenterology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China; Beijing University of Chinese Medicine, Beijing, China
| | - Juncong Hu
- Department of Gastroenterology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China; Beijing University of Chinese Medicine, Beijing, China
| | - ZhiHao Fu
- Department of Gastroenterology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China; Beijing University of Chinese Medicine, Beijing, China
| | - Lei Shi
- Department of Gastroenterology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China.
| |
Collapse
|
11
|
Wang Y, Gao JZ, Sakaguchi T, Maretzky T, Gurung P, Narayanan NS, Short S, Xiong Y, Kang Z. LRRK2 G2019S Promotes Colon Cancer Potentially via LRRK2-GSDMD Axis-Mediated Gut Inflammation. Cells 2024; 13:565. [PMID: 38607004 PMCID: PMC11011703 DOI: 10.3390/cells13070565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/20/2024] [Accepted: 03/22/2024] [Indexed: 04/13/2024] Open
Abstract
Leucine-rich repeat kinase 2 (LRRK2) is a serine-threonine protein kinase belonging to the ROCO protein family. Within the kinase domain of LRRK2, a point mutation known as LRRK2 G2019S has emerged as the most prevalent variant associated with Parkinson's disease. Recent clinical studies have indicated that G2019S carriers have an elevated risk of cancers, including colon cancer. Despite this observation, the underlying mechanisms linking LRRK2 G2019S to colon cancer remain elusive. In this study, employing a colitis-associated cancer (CAC) model and LRRK2 G2019S knock-in (KI) mouse model, we demonstrate that LRRK2 G2019S promotes the pathogenesis of colon cancer, characterized by increased tumor number and size in KI mice. Furthermore, LRRK2 G2019S enhances intestinal epithelial cell proliferation and inflammation within the tumor microenvironment. Mechanistically, KI mice exhibit heightened susceptibility to DSS-induced colitis, with inhibition of LRRK2 kinase activity ameliorating colitis severity and CAC progression. Our investigation also reveals that LRRK2 G2019S promotes inflammasome activation and exacerbates gut epithelium necrosis in the colitis model. Notably, GSDMD inhibitors attenuate colitis in LRRK2 G2019S KI mice. Taken together, our findings offer experimental evidence indicating that the gain-of-kinase activity in LRRK2 promotes colorectal tumorigenesis, suggesting LRRK2 as a potential therapeutic target in colon cancer patients exhibiting hyper LRRK2 kinase activity.
Collapse
Affiliation(s)
- Yuhang Wang
- Department of Pathology, University of Iowa, Iowa City, IA 52242, USA
| | - Joyce Z. Gao
- Department of Pathology, University of Iowa, Iowa City, IA 52242, USA
| | - Taylor Sakaguchi
- Department of Pathology, University of Iowa, Iowa City, IA 52242, USA
| | - Thorsten Maretzky
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Prajwal Gurung
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Nandakumar S. Narayanan
- Iowa Neuroscience Institute, University of Iowa, Iowa City, IA 52242, USA
- Department of Neurology, University of Iowa, Iowa City, IA 52242, USA
| | - Sarah Short
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Yiqin Xiong
- Department of Pathology, University of Iowa, Iowa City, IA 52242, USA
| | - Zizhen Kang
- Department of Pathology, University of Iowa, Iowa City, IA 52242, USA
| |
Collapse
|
12
|
Koh YC, Chang YC, Lin WS, Leung SY, Chen WJ, Wu SH, Wei YS, Gung CL, Chou YC, Pan MH. Efficacy and Mechanism of the Action of Live and Heat-Killed Bacillus coagulans BC198 as Potential Probiotic in Ameliorating Dextran Sulfate Sodium-Induced Colitis in Mice. ACS OMEGA 2024; 9:10253-10266. [PMID: 38463297 PMCID: PMC10918820 DOI: 10.1021/acsomega.3c07529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 02/01/2024] [Accepted: 02/12/2024] [Indexed: 03/12/2024]
Abstract
Inflammatory bowel disease alters the gut microbiota, causes defects in mucosal barrier function, and leads to dysregulation of the immune response to microbial stimulation. This study investigated and compared the efficacy of a candidate probiotic strain, Bacillus coagulans BC198, and its heat-killed form in treating dextran sulfate sodium-induced colitis. Both live and heat-killed B. coagulans BC198 increased gut barrier-associated protein expression, reduced neutrophil and M1 macrophage infiltration of colon tissue, and corrected gut microbial dysbiosis induced by colitis. However, only live B. coagulans BC198 could alleviate the general symptoms of colitis, prevent colon shortening, and suppress inflammation and tissue damage. At the molecular level, live B. coagulans BC198 was able to inhibit Th17 cells while promoting Treg cells in mice with colitis, reduce pro-inflammatory MCP-1 production, and increase anti-inflammatory IL-10 expression in the colonic mucosa. The live form of B. coagulans BC198 functioned more effectively than the heat-killed form in ameliorating colitis by enhancing the anti-inflammatory response and promoting Treg cell accumulation in the colon.
Collapse
Affiliation(s)
- Yen-Chun Koh
- Institute
of Food Sciences and Technology, National
Taiwan University, Taipei 10617, Taiwan
| | - Ya-Chu Chang
- Institute
of Food Sciences and Technology, National
Taiwan University, Taipei 10617, Taiwan
| | - Wei-Sheng Lin
- Institute
of Food Sciences and Technology, National
Taiwan University, Taipei 10617, Taiwan
- Department
of Food Science, National Quemoy University, Quemoy 892, Taiwan
| | - Siu-Yi Leung
- Institute
of Food Sciences and Technology, National
Taiwan University, Taipei 10617, Taiwan
| | - Wei-Jen Chen
- Biotech
Department, Syngen Biotech Co., Ltd., Tainan 744094, Taiwan
| | - Shiuan-Huei Wu
- Biotech
Department, Syngen Biotech Co., Ltd., Tainan 744094, Taiwan
| | - Yu-Shan Wei
- Research
and Development Department, Syngen Biotech
Co., Ltd., Tainan 744094, Taiwan
| | - Chiau-Ling Gung
- Research
and Development Department, Syngen Biotech
Co., Ltd., Tainan 744094, Taiwan
| | - Ya-Chun Chou
- Institute
of Food Sciences and Technology, National
Taiwan University, Taipei 10617, Taiwan
| | - Min-Hsiung Pan
- Institute
of Food Sciences and Technology, National
Taiwan University, Taipei 10617, Taiwan
- Department
of Medical Research, China Medical University Hospital, China Medical University, Taichung City 40402, Taiwan
- Department
of Health and Nutrition Biotechnology, Asia
University, Taichung City 41354, Taiwan
| |
Collapse
|
13
|
Kong G, Hua H, Lu Y, Yan K, Zheng Y, Jia Z, Guo H, Li M, Jin Y, Liu Z. Roxadustat ameliorates experimental colitis in mice by regulating macrophage polarization through increasing HIF level. Biochim Biophys Acta Gen Subj 2024; 1868:130548. [PMID: 38158022 DOI: 10.1016/j.bbagen.2023.130548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 11/10/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Gastro-intestinal (GI) tract inflammation is as a result of inflammatory hypoxia which is also induced by long-standing group of disorders like inflammatory-bowel disease (IBD). Regulation of GI immune homeostasis by macrophage involves hypoxia-inducible factor (HIF). As inhibitor of HIF prolyl hydroxylase, roxadustat (ROX) increases the levels of HIF. METHODS We induced experimental colitis (EC) model in mice via dextran-sulfate sodium (DSS) to evaluate ROX role in above-mentioned disease. RESULTS ROX ameliorated EC in mice by blocking colonic length shorten and loss of body weight, thereby reducing scores of disease-activity index (DAI) and histopathology. ROX significantly reduced inflammatory cytokines levels, suppressed M1 and increased M2 macrophage polarization in colonic tissues. Besides, ROX blocked declining hematocrit (HCT) level in blood and increased HIF-1-α and HIF-2-α level in colonic tissues. The inhibitor of HIF-1- α, KC7F2 decreased body weight and colonic length in ROX-treated DSS mice. Meanwhile, DAI scores and histopathology in KC7F2 treated DSS mice were markedly higher than that of treatment with ROX alone. KC7F2 treatments also significantly increased inflammatory cytokines levels, respectively promoted and reduced polarization of M1 and M2 macrophages in colonic tissue from ROX treated mice. Further, KC7F2 treatments inhibited ROX induced HCT level increasing in blood and decreased HIF-1-α and HIF-2-α level in colonic tissue. CONCLUSION Collectively, we discovered that ROX ameliorated EC in mice by regulating macrophage polarization through promotion of HIF expression. GENERAL SIGNIFICANCE Taken together, we developed a new application of ROX, which provides new ideas and a scientific basis for IBD treatment.
Collapse
Affiliation(s)
- Guiping Kong
- Department of Gastroenterology, Children's Hospital of Nanjing Medical University, 210008 Nanjing, Jiangsu, China
| | - Hu Hua
- Nanjing Key Laboratory of Pediatrics, Children's Hospital of Nanjing Medical University, 210008 Nanjing, Jiangsu, China; Department of Nephrology, Children's Hospital of Nanjing Medical University, 210008 Nanjing, Jiangsu, China; Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, 211166 Nanjing, Jiangsu, China
| | - Yan Lu
- Department of Gastroenterology, Children's Hospital of Nanjing Medical University, 210008 Nanjing, Jiangsu, China
| | - Kunlong Yan
- Department of Gastroenterology, Children's Hospital of Nanjing Medical University, 210008 Nanjing, Jiangsu, China
| | - Yucan Zheng
- Department of Gastroenterology, Children's Hospital of Nanjing Medical University, 210008 Nanjing, Jiangsu, China
| | - Zhanjun Jia
- Nanjing Key Laboratory of Pediatrics, Children's Hospital of Nanjing Medical University, 210008 Nanjing, Jiangsu, China; Department of Nephrology, Children's Hospital of Nanjing Medical University, 210008 Nanjing, Jiangsu, China; Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, 211166 Nanjing, Jiangsu, China
| | - Hongmei Guo
- Department of Gastroenterology, Children's Hospital of Nanjing Medical University, 210008 Nanjing, Jiangsu, China
| | - Mei Li
- Department of Gastroenterology, Children's Hospital of Nanjing Medical University, 210008 Nanjing, Jiangsu, China
| | - Yu Jin
- Department of Gastroenterology, Children's Hospital of Nanjing Medical University, 210008 Nanjing, Jiangsu, China
| | - Zhifeng Liu
- Department of Gastroenterology, Children's Hospital of Nanjing Medical University, 210008 Nanjing, Jiangsu, China.
| |
Collapse
|
14
|
Feng W, Zhang Y, Zhang Y, Dong Y, Wu J, Chen Q, Liu M, Wang D, Wu Y, Wang T. Anemoside B4 ameliorates dextran sulfate sodium (DSS)-induced colitis through inhibiting NLRP3 inflammasome and modulating gut microbiota. Eur J Pharmacol 2024; 963:176164. [PMID: 37918500 DOI: 10.1016/j.ejphar.2023.176164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 11/04/2023]
Abstract
Ulcerative colitis (UC) has been recognized as a chronic and relapsing inflammatory disease of the gastrointestinal tract. Clinically, aminosalicylates, immunosuppressants and biological agents are commonly used to treat UC at different stages of the disease. However, these drugs often have side effects. Here, we investigated the anti-UC activity of Anemoside B4 (AB4) in mice with dextran sulfate sodium (DSS) induced colitis. Colon tissues, serum, and colonic contents were collected for assessment of intestinal barrier function, inflammatory cytokines production and microenvironment of intestinal microbiota. Results showed that AB4 alleviated colon shortening, weight lossing and histopathological damage in DSS-induced mice. In addition, we demonstrated both in vivo and in vitro that AB4 remarkably ameliorated colonic inflammation through suppressing NLRP3 pathway. Moreover, AB4 strengthened the intestinal epithelial barrier by regulating myosin light chain kinase (MLCK)-phosphorylated myosin light chain 2 (pMLC2) signaling pathway. Furthermore, we performed 16 S rRNA gene sequencing and fecal microbiome transplantation (FMT) experiments to demonstrate that AB4 alleviated colitis through regulating dysbiosis of intestinal microbiota. These results revealed that AB4 effectively ameliorate experimental UC mainly through regulating MLCK/pMLC2 pathway, NLRP3 pathway and dysbiosis of microbiota, provided new insights into the development of novel anti-UC drugs.
Collapse
Affiliation(s)
- Wen Feng
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China
| | - Yi Zhang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China; Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China
| | - Yawei Zhang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China
| | - Yang Dong
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China
| | - Jiaqi Wu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China
| | - Qian Chen
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China; Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China
| | - Mengyang Liu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China; Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China
| | - Dan Wang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China; Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China
| | - Yuzheng Wu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China; Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China.
| | - Tao Wang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China; Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, China.
| |
Collapse
|
15
|
Lu X, Zhang M, Ma Y, Li G, Zhao X, Qian W. Protective effect of Limosilactobacillus reuteri-fermented yogurt on mouse intestinal barrier injury induced by enterotoxigenic Escherichia coli. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:7494-7505. [PMID: 37411001 DOI: 10.1002/jsfa.12836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 06/25/2023] [Accepted: 07/07/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND Enterotoxigenic Escherichia coli (ETEC) is a pathogen that causes traveler's diarrhea, for which an effective vaccine is lacking. Previous studies showed that Limosilactobacillus reuteri could inhibit E. coli, effectively increase the expression of its tight junction protein, and reduce the adhesion of ETEC to the intestinal epithelial Caco-2 cell line. In this study, three kinds of yogurt with different starter cultures were first prepared: Lm. reuteri yogurt (fermented by Lm. reuteri alone), traditional yogurt (fermented by Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus at a ratio of 1:1) and mixed yogurt (fermented by Lm. reuteri, S. thermophilus and L. delbrueckii subsp. bulgaricus at a ratio of 1:1:1). The physiological properties, oxidative stress, intestinal barrier function, tight junction protein, pathological conditions and intestinal microbiota composition were investigated. RESULTS The data showed that Lm. reuteri-fermented yogurt pregavage could effectively alleviate the intestinal barrier impairment caused by ETEC in mice. It alleviated intestinal villus shortening and inflammatory cell infiltration, decreased plasma diamine oxidase concentration and increased claudin-1 and occludin expression in the jejunum of ETEC-infected mice. In addition, Lm. reuteri-fermented yogurt significantly reduced the ETEC load in fecal samples, reversed the increase in Pseudomonadota abundance and decreased Bacteroidota abundance caused by ETEC infection. Furthermore, the composition of the intestinal microbiota could maintain a stable state similar to that in healthy mice. CONCLUSION These findings indicate that Lm. reuteri-fermented yogurt could alleviate intestinal barrier damage, inhibit ETEC growth and maintain the stability of the intestinal microbiota during ETEC infection. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
- Xi Lu
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Mingxin Zhang
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Yuzhe Ma
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Guohua Li
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Xin Zhao
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Weisheng Qian
- Tangdu Hospital, Air Force Military Medical University, Xi'an, China
| |
Collapse
|
16
|
Zhang D, Ge F, Ji J, Li YJ, Zhang FR, Wang SY, Zhang SJ, Zhang DM, Chen M. β-sitosterol alleviates dextran sulfate sodium-induced experimental colitis via inhibition of NLRP3/Caspase-1/GSDMD-mediated pyroptosis. Front Pharmacol 2023; 14:1218477. [PMID: 37954856 PMCID: PMC10637366 DOI: 10.3389/fphar.2023.1218477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 10/16/2023] [Indexed: 11/14/2023] Open
Abstract
Background: Inflammation-related NLRP3/Caspase-1/GSDMD-mediated pyroptosis is involved in the progression of ulcerative colitis (UC). β-sitosterol (SIT) was reported to have anti-inflammatory effects on experimental colitis, while the regulation of SIT on pyroptosis is unclear. Therefore, the present study aimed to define the protective and healing effects of SIT on dextran sulfate sodium (DSS)-induced experimental UC rats and human epithelial colorectal adenocarcinoma cells (Caco-2) and explore the underlying mechanisms that are responsible for its effects on NLRP3/Caspase-1/GSDMD-mediated pyroptosis in UC. Methods: UC model rats were established by oral 4% DSS. Following colitis injury, the animals received SIT (doses of 50, 100, and 200 mg/kg) treatment for 2 weeks. For in vitro study, we exposed Caco-2-50 mg/mL DSS with or without SIT (concentrations of 8 and 16 μg/mL). Disease activity index (DAI) and histopathological injury were assessed in vivo. Activation proteins of nuclear factor kappa B (NF-κB) signaling axis, and tight junction-related proteins of zonula occludens-1 (ZO-1) and occludin were detected in colon tissues. TNF-α, IL-1β, and IL-18 in serum and cell supernatant were measured by enzyme-linked immunosorbent assay (ELISA). Changes in NLRP3/Caspase-1/GSDMD-mediated pyroptosis signaling pathway activation were analyzed both in tissues and cells. Results: Our findings suggested that SIT treatment attenuated the severity of 4% DSS-induced UC by protecting rats from weight and colon length loss, and macroscopic damage. SIT also reduced proinflammatory factors production (TNF-α, IL-1β, and IL-18) in serum and cell supernatant. Mechanistically, SIT downregulated the expression levels of pyroptosis-related proteins including Caspase-1, cleaved-Caspase-1, NLRP3, GSDMD, and GSDMD-N in colon tissues and Caco-2 cells. Further analysis indicated that SIT maintained the colonic barrier integrity by enhancing the protein expression of ZO-1 and occludin. Conclusion: We confirmed that SIT exerts protective and therapeutic effects on DSS-induced colitis injury by suppressing NLRP3/Caspase-1/GSDMD-mediated pyroptosis and inflammation response. These findings demonstrated that SIT could be a potential medication for UC treatment.
Collapse
Affiliation(s)
- Di Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Fei Ge
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Jing Ji
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yu-Jing Li
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Fu-Rong Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Shu-Yan Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Shu-Jing Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Dong-Mei Zhang
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Meng Chen
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| |
Collapse
|
17
|
Robinson GI, Li D, Wang B, Zahoruiko Y, Gerasymchuk M, Hudson D, Kovalchuk O, Kovalchuk I. Anti-Inflammatory Effects of Serotonin Receptor and Transient Receptor Potential Channel Ligands in Human Small Intestinal Epithelial Cells. Curr Issues Mol Biol 2023; 45:6743-6774. [PMID: 37623246 PMCID: PMC10453699 DOI: 10.3390/cimb45080427] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/09/2023] [Accepted: 08/11/2023] [Indexed: 08/26/2023] Open
Abstract
Intestinal inflammation and dysbiosis can lead to inflammatory bowel diseases (IBD) and systemic inflammation, affecting multiple organs. Developing novel anti-inflammatory therapeutics is crucial for preventing IBD progression. Serotonin receptor type 2A (5-HT2A) ligands, including psilocybin (Psi), 4-Acetoxy-N,N-dimethyltryptamine (4-AcO-DMT), and ketanserin (Ket), along with transient receptor potential (TRP) channel ligands like capsaicin (Cap), curcumin (Cur), and eugenol (Eug), show promise as anti-inflammatory agents. In this study, we investigated the cytotoxic and anti-inflammatory effects of Psi, 4-AcO-DMT, Ket, Cap, Cur, and Eug on human small intestinal epithelial cells (HSEIC). HSEIC were exposed to tumor necrosis factor (TNF)-α and interferon (IFN)-γ for 24 h to induce an inflammatory response, followed by treatment with each compound at varying doses (0-800 μM) for 24 to 96 h. The cytotoxicity was assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and protein expression by Western blot (WB) analysis. As single treatments, Psi (40 μM), Cur (0.5 μM), and Eug (50 μM) significantly reduced COX-2 levels without cytotoxic effects. When combined, Psi (40 μM) and Cur (0.5 μM) exhibited synergy, resulting in a substantial decrease in COX-2 protein levels (-28× fold change), although the reduction in IL-6 was less pronounced (-1.6× fold change). Psi (20 μM) and Eug (25 μM) demonstrated the most favorable outcomes, with significant decreases in COX-2 (-19× fold change) and IL-6 (-10× fold change) protein levels. Moreover, the combination of Psi and Eug did not induce cytotoxic effects in vitro at any tested doses. This study is the first to explore the anti-inflammatory potential of psilocybin and 4-AcO-DMT in the intestines while highlighting the potential for synergy between the 5-HT2A and TRP channel ligands, specifically Psi and Eug, in alleviating the TNF-α/IFN-γ-induced inflammatory response in HSEIC. Further investigations should evaluate if the Psi and Eug combination has the therapeutic potential to treat IBD in vivo.
Collapse
Affiliation(s)
- Gregory Ian Robinson
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (G.I.R.); (M.G.)
| | - Dongping Li
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (G.I.R.); (M.G.)
| | - Bo Wang
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (G.I.R.); (M.G.)
| | - Yeva Zahoruiko
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (G.I.R.); (M.G.)
| | - Marta Gerasymchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (G.I.R.); (M.G.)
| | - Darryl Hudson
- GoodCap Pharmaceuticals, Calgary, AB T2P 0R3, Canada
| | - Olga Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (G.I.R.); (M.G.)
| | - Igor Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (G.I.R.); (M.G.)
| |
Collapse
|
18
|
Wei S, Li M, Song W, Liu J, Yu S, Wang Y, Zhang M, Du H, Liu Y, Liu H, Fu W, Li B, Chen YG. The cyclooxygenase-expressing mesenchyme resists intestinal epithelial injury by paracrine signaling. CELL REGENERATION (LONDON, ENGLAND) 2023; 12:30. [PMID: 37574502 PMCID: PMC10423710 DOI: 10.1186/s13619-023-00174-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 07/17/2023] [Indexed: 08/15/2023]
Abstract
Paracrine signals play pivotal roles in organ homeostasis. Mesenchymal stromal cells (MSCs) play a key role in regulating epithelium homeostasis in the intestine while their paracrine effects are poorly characterized. Here, we identified prostaglandin E2 (PGE2) secreted by cyclooxygenase (COX)-expressing MSCs as a vital factor to maintain the intestinal mucosal barrier. We found that MSCs-induced organoid swelling through paracrine effect in vitro, a process due to enhanced water adsorption and is mediated by the COX-PGE2-EP4 axis. To further explore the regulatory effect of this axis on the intestinal epithelial barrier in vivo, we established the conditional knockout mouse model to specifically delete COX in MSCs and found that PGE2 reduction downregulated the gene Muc2 and induced a gastric metaplasia-like phenotype. Moreover, PGE2 defects increased the susceptibility of intestinal epithelium to colitis. Our study uncovers the paracrine signaling of COX-expressing MSCs in intestinal mucosal barrier maintenance, providing a basis for understanding the role of mesenchymal cells in the pathophysiological function of the intestine.
Collapse
Affiliation(s)
- Siting Wei
- The State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Meng Li
- Guangzhou National Laboratory, Guangzhou, 510005, China
| | - Wanlu Song
- The State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Jiaye Liu
- Department of Thyroid and Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shicheng Yu
- Guangzhou National Laboratory, Guangzhou, 510005, China
| | - Yalong Wang
- Guangzhou National Laboratory, Guangzhou, 510005, China
| | - Mengxian Zhang
- The State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Huijun Du
- The State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Yuan Liu
- The State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Huidong Liu
- The State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Wei Fu
- Department of General Surgery, Peking University Third Hospital, Beijing, China
| | - Baojie Li
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuro- Psychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Ye-Guang Chen
- The State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China.
- Guangzhou National Laboratory, Guangzhou, 510005, China.
- School of Basic Medicine, Jiangxi Medical College, Nanchang University, Nanchang, 330031, China.
| |
Collapse
|
19
|
Li Z, Chen C, Yu W, Xu L, Jia H, Wang C, Pei N, Liu Z, Luo D, Wang J, Lv W, Yuan B, Zhang J, Jiang H. Colitis-Mediated Dysbiosis of the Intestinal Flora and Impaired Vitamin A Absorption Reduce Ovarian Function in Mice. Nutrients 2023; 15:nu15112425. [PMID: 37299390 DOI: 10.3390/nu15112425] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/17/2023] [Accepted: 05/21/2023] [Indexed: 06/12/2023] Open
Abstract
Changes in the composition and ratio of the flora during colitis have been found to potentially affect ovarian function through nutrient absorption. However, the mechanisms have not been fully explored. To investigate whether colitis-induced dysbacteriosis of the intestinal flora affects ovarian function, mice were given dextran sodium sulfate (DSS) through drinking water. High-throughput sequencing technology was used to clarify the composition and proportion of bacterial flora as well as gene expression changes in the colon. Changes in follicle type, number, and hormone secretion in the ovary were detected. The results showed that 2.5% DSS could induce severe colitis symptoms, including increased inflammatory cell infiltration, severe damage to the crypt, and high expression of inflammatory factors. Moreover, vitamin A synthesis metabolism-related genes Rdh10, Aldh1a1, Cyp26a1, Cyp26b1, and Rarβ were significantly decreased, as well as the levels of the steroid hormone synthase-related proteins STAR and CYP11A1. The levels of estradiol, progesterone, and Anti-Mullerian hormone as well as the quality of oocytes decreased significantly. The significantly changed abundances of Alistipes, Helicobacter, Bacteroides, and some other flora had potentially important roles. DSS-induced colitis and impaired vitamin A absorption reduced ovarian function.
Collapse
Affiliation(s)
- Ze Li
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, China
| | - Chengzhen Chen
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, China
| | - Wenjie Yu
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, China
| | - Lingxia Xu
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, China
| | - Haitao Jia
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, China
| | - Chen Wang
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, China
| | - Na Pei
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, China
| | - Zibin Liu
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, China
| | - Dan Luo
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, China
| | - Jun Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Wenfa Lv
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Bao Yuan
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, China
| | - Jiabao Zhang
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, China
| | - Hao Jiang
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, China
| |
Collapse
|
20
|
Zhang Q, Zhao Q, Li T, Lu L, Wang F, Zhang H, Liu Z, Ma H, Zhu Q, Wang J, Zhang X, Pei Y, Liu Q, Xu Y, Qie J, Luan X, Hu Z, Liu X. Lactobacillus plantarum-derived indole-3-lactic acid ameliorates colorectal tumorigenesis via epigenetic regulation of CD8 + T cell immunity. Cell Metab 2023:S1550-4131(23)00141-9. [PMID: 37192617 DOI: 10.1016/j.cmet.2023.04.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 02/10/2023] [Accepted: 04/14/2023] [Indexed: 05/18/2023]
Abstract
Previous studies have shown that Lactobacillus species play a role in ameliorating colorectal cancer (CRC) in a mouse model. However, the underlying mechanisms remain largely unknown. Here, we found that administration of a probiotic strain, Lactobacillus plantarumL168 and its metabolite, indole-3-lactic acid, ameliorated intestinal inflammation, tumor growth, and gut dysbiosis. Mechanistically, we indicated that indole-3-lactic acid accelerated IL12a production in dendritic cells by enhancing H3K27ac binding at the enhancer regions of IL12a that contributed to priming CD8+ T cell immunity against tumor growth. Furthermore, indole-3-lactic acid was found to transcriptionally inhibit Saa3 expression related to cholesterol metabolism of CD8+ T cells through changing chromatin accessibility and subsequent enhancing function of tumor-infiltrating CD8+ T cells. Together, our findings provide new insights into the epigenetic regulation of probiotics-mediated anti-tumor immunity and suggest the potential of L. plantarumL168 and indole-3-lactic acid to develop therapeutic strategies for patients with CRC.
Collapse
Affiliation(s)
- Qingqing Zhang
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Qing Zhao
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Tao Li
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Longya Lu
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Fei Wang
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Hong Zhang
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Zhi Liu
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Huihui Ma
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Qihui Zhu
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Jingjing Wang
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xuemei Zhang
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Yang Pei
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Qisha Liu
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Yuyu Xu
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Jinlong Qie
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Xiaoting Luan
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China
| | - Zhibin Hu
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xingyin Liu
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province, Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 211166, China; State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China; The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China; Department of Microbiota Medicine, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| |
Collapse
|
21
|
Qin H, Fu Y, Zhou K, Song H, Fang G, Chen Q, Pang Y. Toddalia asiatica extract attenuates adjuvant-induced arthritis by modulating colon Th17/Treg balance and colony homeostasis. JOURNAL OF ETHNOPHARMACOLOGY 2023; 313:116542. [PMID: 37127142 DOI: 10.1016/j.jep.2023.116542] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/27/2023] [Accepted: 04/21/2023] [Indexed: 05/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Given the adverse effects of the current principal treatments, there is still a great need for effective cures for rheumatoid arthritis (RA), an immune-mediated disease. Toddalia asiatica (L.) Lam is a traditional medicinal herb that can be used for RA treatment because of its anti-inflammatory and analgesic properties. AIM OF THE STUDY To investigate the possible effects of Toddalia asiatica extract (TAE) on intestinal immunity and the intestinal bacterial flora in a rat model of RA. MATERIALS AND METHODS The anti-arthritis effect of TAE was evaluated in arthritis rats induced by complete Freund's adjuvant-induced arthritis (AIA). Arthritis index (AI) scores, systemic inflammation scores, histopathologic changes in the colon and ankle were detected by hematoxylin and eosin staining. Western blot analysis was performed to assess the protein expression of IL-17A, RORC, IL-1β, IL-6, FOXP3, IL-10 in the colon. RT-PCR was performed to assess the expression of the colon's mRNA. Finally, changes to the gut microbiome by sequencing 16S rDNA. Microbial function prediction was performed using PICRUSt with the KEGG databases and correlation analysis was carried out by computing Spearman's rank correlations. RESULTS demonstrated that TAE administration at a dose of 3 g/kg dramatically decreased AI scores, systemic inflammation scores, and histopathologic lesions of the ankle and colon in AIA rats. TAE was found to significantly reduce the expression levels of Th17-related proteins and mRNAs (IL-17A, RORC, IL-1β and IL-6) in the colon, while increasing the expression levels of Treg-related proteins and mRNA (IL-10 and FOXP3), which helped restore the balance of Th17/Treg immune cells in the colon. Meanwhile, TAE was also found to be capable of remodeling the gut microbiota in AIA rats. Depleting RA-associated genera and thereby increasing α-diversity enriched the gut microbiota's diversity and shifted the community composition dramatically, leading to the increase of Firmicutes_unclassified, Ruminococcaceae_unclassified, Muribaculum, Subdoligranulum, Lachnospira, Marvinbryantia, and the reduction of RA-related bacteria Ligilactobacillus, Streptococcus and Eubacterium-eligens-group. Furthermore, PICRUSt analysis revealed that metabolic pathways were associated with TAE treatment, with metabolic pathways dominating. Among them, metabolic pathways were predominant. Correlation studies showed that a total of 9 microorganisms, including Ligilactobacillus, Eubacterium-eligens-group and Subdoligranulum, were significantly associated with Th17/Treg expression. CONCLUSIONS This study demonstrates that TAE is a low-toxicity poly alkaline drug that can rapidly and effectively improve joint symptoms in RA rats and increases beneficial intestinal bacteria and decreases harmful ones, which is associated with modulating Th17/Treg interactions in intestinal T cells and reversing microbial disorders.
Collapse
Affiliation(s)
- Huangguan Qin
- College of Zhuang Medicine, Guangxi University of Traditional Chinese Medicine, Nanning, 530022, PR China; Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning, 530200, PR China
| | - Yulei Fu
- College of Zhuang Medicine, Guangxi University of Traditional Chinese Medicine, Nanning, 530022, PR China; Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning, 530200, PR China
| | - Kan Zhou
- College of Zhuang Medicine, Guangxi University of Traditional Chinese Medicine, Nanning, 530022, PR China; Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning, 530200, PR China
| | - Huanhuan Song
- College of Zhuang Medicine, Guangxi University of Traditional Chinese Medicine, Nanning, 530022, PR China; Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning, 530200, PR China
| | - Gang Fang
- College of Zhuang Medicine, Guangxi University of Traditional Chinese Medicine, Nanning, 530022, PR China; Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning, 530200, PR China
| | - Qing Chen
- Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning, 530200, PR China.
| | - Yuzhou Pang
- College of Zhuang Medicine, Guangxi University of Traditional Chinese Medicine, Nanning, 530022, PR China; Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning, 530200, PR China.
| |
Collapse
|
22
|
Wang Y, Zhang J, Zhang B, Lu M, Ma J, Liu Z, Huang J, Ma J, Yang X, Wang F, Tang X. Modified Gegen Qinlian decoction ameliorated ulcerative colitis by attenuating inflammation and oxidative stress and enhancing intestinal barrier function in vivo and in vitro. JOURNAL OF ETHNOPHARMACOLOGY 2023; 313:116538. [PMID: 37086872 DOI: 10.1016/j.jep.2023.116538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 04/12/2023] [Accepted: 04/20/2023] [Indexed: 05/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Modified Gegen Qinlian decoction (MGQD), which was first documented in Treatise on Febrile Disease, is recognized as a classic prescription to treat ulcerative colitis (UC). However, its protective mechanism against UC remains to be fully elucidated. AIM OF THE STUDY To explore the impact and the potential molecular mechanism of MGQD on dextran sodium sulfate (DSS)-induced UC mice and tumor necrosis factor alpha (TNF-α)-induced Caco-2 cell monolayer model of intestinal barrier. MATERIALS AND METHODS The chemical components of MGQD and MGQD drug containing serum (MGQD-DS) were characterized by LC-MS/MS. The therapeutic effect of MGQD on DSS-induced UC was evaluated based on body weight, disease activity index (DAI), colon length, colonic histopathological injury, inflammatory cytokines, oxidative stress response and intestinal barrier function. Cell Counting Kit (CCK)-8 assay was applied to detect the effect of MGQD-DS on the viability of Caco-2 cells. Additionally, TNF-α-induced Caco-2 cell monolayer model of intestinal barrier was established in vitro. The Caco-2 cell monolayers were administered blank serum or MGQD-DS to observe the effects of MGQD-DS on transepithelial electrical resistance (TEER), permeability of fluorescein isothiocyanate (FITC)-dextran, inflammatory cytokines, oxidative stress indicators and intestinal epithelial barrier (IEB). RESULTS MGQD significantly improved symptoms and pathological damage in UC mice by downregulating the expression of interleukin (IL)-1β and malondialdehyde (MDA), attenuating the loss of goblet cells and the destruction of intestinal epithelial ultrastructure, and upregulating the expression of superoxide dismutase (SOD), catalase (CAT), glutathione (GSH), zonula occludens-1 (ZO-1), Occludin, Claudin-1 and E-cadherin. In vitro, MGQD-DS significantly reduced the flux of FITC-dextran, increased the TEER, inhibited the expression of IL-21, IL-17A and MDA, and promoted the expression of IL-4, IL-10, transforming growth factor-β (TGF-β), SOD, CAT, GSH, Occludin and E-cadherin in TNF-α-induced Caco-2 cell monolayer model of intestinal barrier. CONCLUSION MGQD can ameliorate DSS-induced UC mice and TNF-α-induced Caco-2 cell monolayer model of intestinal barrier, and the protective effect is related to its inhibition of inflammation, alleviation of oxidative stress, and repair of intestinal barrier damage.
Collapse
Affiliation(s)
- Yifan Wang
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), Beijing, 100191, China; Academy of Integration of Chinese and Western Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Jiaqi Zhang
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Beihua Zhang
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Mengxiong Lu
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), Beijing, 100191, China; Academy of Integration of Chinese and Western Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Jing Ma
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Zhihong Liu
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), Beijing, 100191, China; Academy of Integration of Chinese and Western Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Jinke Huang
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Jinxin Ma
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), Beijing, 100191, China; Academy of Integration of Chinese and Western Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Xuefei Yang
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), Beijing, 100191, China; Academy of Integration of Chinese and Western Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Fengyun Wang
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China.
| | - Xudong Tang
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), Beijing, 100191, China; Academy of Integration of Chinese and Western Medicine, Peking University Health Science Center, Beijing, 100191, China.
| |
Collapse
|
23
|
Kumar V, Kumar V, Kondepudi KK, Chopra K, Bishnoi M. Capsazepine-Induced Altered Colonic Mucosal Health Limits Isomalto-oligosaccharide Action in High-Fat Diet-Fed C57BL/6J Mice. ACS Pharmacol Transl Sci 2023; 6:600-613. [PMID: 37082749 PMCID: PMC10111622 DOI: 10.1021/acsptsci.2c00243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Indexed: 04/05/2023]
Abstract
The present study sought to understand the effects of a combination of altered colonic mucosal health (intrarectal capsazepine administration) and high-fat diet (HFD) administration in mice. Furthermore, we also studied whether this combination prevents protective actions of dietary prebiotic, isomaltooligosaccharides. We studied the alterations in intestinal permeability, histological and transcriptional changes, short-chain fatty acid (SCFA) concentrations, and gut microbial abundance. Capsazepine (CPZ) was administered rectally twice a day along with HFD feeding. Following confirmation of CPZ action (loss of TRPA1 and TRPV1-associated nocifensive behavior), the intrarectal dose of CPZ was reduced to once in 2 days up to 8 weeks. Simultaneous intrarectal administration of CPZ exacerbated the HFD (8 weeks feeding)-induced damage to mucosal lining, intestinal permeability, tight junction protein expression, SCFA levels, and gut bacterial abundances. This higher degree of mucosal damage and pathological alteration in colonic mucosa prevented the previously reported protective actions of isomaltooligosaccharides as a prebiotic in HFD-fed mice. Overall, we present evidence that colonic precondition (gut permeability and mucosal lining) is an important factor in determination of HFD-induced changes in the colon, and success of diet-associated interventions (dietary fibers, pre/probiotics, etc.) is dependent on it.
Collapse
Affiliation(s)
- Vibhu Kumar
- TR(i)P
for Health Laboratory, Centre for Excellence in Functional Foods,
Department of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India
- University
Institute of Pharmaceutical Sciences, Panjab
University, Chandigarh 160014, India
| | - Vijay Kumar
- TR(i)P
for Health Laboratory, Centre for Excellence in Functional Foods,
Department of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India
- Department
of Biotechnology, Panjab University, Sector-25, Chandigarh 160014, India
| | - Kanthi Kiran Kondepudi
- TR(i)P
for Health Laboratory, Centre for Excellence in Functional Foods,
Department of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India
| | - Kanwaljit Chopra
- University
Institute of Pharmaceutical Sciences, Panjab
University, Chandigarh 160014, India
| | - Mahendra Bishnoi
- TR(i)P
for Health Laboratory, Centre for Excellence in Functional Foods,
Department of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India
| |
Collapse
|
24
|
Zhou C, Wang Y, Li C, Xie Z, Dai L. Amelioration of Colitis by a Gut Bacterial Consortium Producing Anti-Inflammatory Secondary Bile Acids. Microbiol Spectr 2023:e0333022. [PMID: 36943054 PMCID: PMC10101101 DOI: 10.1128/spectrum.03330-22] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Abstract
The Integrative Human Microbiome Project and other cohort studies have indicated that inflammatory bowel disease is accompanied by dysbiosis of gut microbiota, decreased production of secondary bile acids, and increased levels of primary bile acids. Secondary bile acids, such as ursodeoxycholic acid (UDCA) and lithocholic acid (LCA), have been reported to be anti-inflammatory, yet it remains to be studied whether introducing selected bacteria strains to restore bile acid metabolism of the gut microbiome can alleviate intestinal inflammation. In this study, we screened human gut bacterial strains for bile acid metabolism and designed a consortium of three species, including Clostridium AP sp000509125, Bacteroides ovatus, and Eubacterium limosum, and named it BAC (bile acid consortium). We showed that the three-strain gut bacterial consortium BAC is capable of converting conjugated primary bile acids taurochenodeoxycholic acid and glycochenodeoxycholic acid to secondary bile acids UDCA and LCA in vitro. Oral gavage treatment with BAC in mice resulted in protective effects against dextran sulfate sodium (DSS)-induced colitis, including reduced weight loss and increased colon length. Furthermore, BAC treatment increased the fecal level of bile acids, including UDCA and LCA. BAC treatment enhanced intestinal barrier function, which may be attributed to the increased activation of the bile acid receptor TGR5 by secondary bile acids. Finally, we examined the remodeling of gut microbiota by BAC treatment. Taken together, the three-strain gut bacterial consortium BAC restored the dysregulated bile acid metabolism and alleviated DSS-induced colitis. Our study provides a proof-of-concept demonstration that a rationally designed bacterial consortium can reshape the metabolism of the gut microbiome to treat diseases. IMPORTANCE Secondary bile acids have been reported to be anti-inflammatory, yet it remains to be studied whether introducing selected bacteria strains to restore bile acid metabolism of the gut microbiome can alleviate intestinal inflammation. To address this gap, we designed a consortium of human gut bacterial strains based on their metabolic capacity to produce secondary bile acids UDCA and LCA, and we evaluated the efficacy of single bacterial strains and the bacterial consortium in treating the murine colitis model. We found that oral gavage of the bacterial consortium to mice restored secondary bile acid metabolism to increase levels of UDCA and LCA, which induced the activation of TGR5 to improve gut-barrier integrity and reduced the inflammation in murine colitis. Overall, our study demonstrates that rationally designed bacterial consortia can reshape the metabolism of the gut microbiome and provides novel insights into the application of live biotherapeutics for treating IBD.
Collapse
Affiliation(s)
- Chunhua Zhou
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus, Sun Yat-sen University, Shenzhen, China
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Shenzhen, China
| | - Ying Wang
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Shenzhen, China
| | - Cun Li
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Shenzhen, China
| | - Zhiyong Xie
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus, Sun Yat-sen University, Shenzhen, China
| | - Lei Dai
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Shenzhen, China
| |
Collapse
|
25
|
Hanč P, Messou MA, Wang Y, von Andrian UH. Control of myeloid cell functions by nociceptors. Front Immunol 2023; 14:1127571. [PMID: 37006298 PMCID: PMC10064072 DOI: 10.3389/fimmu.2023.1127571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/23/2023] [Indexed: 03/19/2023] Open
Abstract
The immune system has evolved to protect the host from infectious agents, parasites, and tumor growth, and to ensure the maintenance of homeostasis. Similarly, the primary function of the somatosensory branch of the peripheral nervous system is to collect and interpret sensory information about the environment, allowing the organism to react to or avoid situations that could otherwise have deleterious effects. Consequently, a teleological argument can be made that it is of advantage for the two systems to cooperate and form an “integrated defense system” that benefits from the unique strengths of both subsystems. Indeed, nociceptors, sensory neurons that detect noxious stimuli and elicit the sensation of pain or itch, exhibit potent immunomodulatory capabilities. Depending on the context and the cellular identity of their communication partners, nociceptors can play both pro- or anti-inflammatory roles, promote tissue repair or aggravate inflammatory damage, improve resistance to pathogens or impair their clearance. In light of such variability, it is not surprising that the full extent of interactions between nociceptors and the immune system remains to be established. Nonetheless, the field of peripheral neuroimmunology is advancing at a rapid pace, and general rules that appear to govern the outcomes of such neuroimmune interactions are beginning to emerge. Thus, in this review, we summarize our current understanding of the interaction between nociceptors and, specifically, the myeloid cells of the innate immune system, while pointing out some of the outstanding questions and unresolved controversies in the field. We focus on such interactions within the densely innervated barrier tissues, which can serve as points of entry for infectious agents and, where known, highlight the molecular mechanisms underlying these interactions.
Collapse
Affiliation(s)
- Pavel Hanč
- Department of Immunology, Harvard Medical School, Boston, MA, United States
- The Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
- *Correspondence: Pavel Hanč, ; Ulrich H. von Andrian,
| | - Marie-Angèle Messou
- Department of Immunology, Harvard Medical School, Boston, MA, United States
- The Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
| | - Yidi Wang
- Department of Immunology, Harvard Medical School, Boston, MA, United States
- The Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
| | - Ulrich H. von Andrian
- Department of Immunology, Harvard Medical School, Boston, MA, United States
- The Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
- *Correspondence: Pavel Hanč, ; Ulrich H. von Andrian,
| |
Collapse
|
26
|
Ma J, Zhang J, Wang Y, Huang J, Yang X, Ma J, Liu Z, Wang F, Tang X. Modified Gegen Qinlian decoction ameliorates DSS-induced chronic colitis in mice by restoring the intestinal mucus barrier and inhibiting the activation of γδT17 cells. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 111:154660. [PMID: 36681051 DOI: 10.1016/j.phymed.2023.154660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/19/2022] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Current therapeutics for ulcerative colitis (UC) have limitations. Classical Formula Gegen Qinlian decoction (GQD) is derived from Shang Han Lun and has a long history of treating gastrointestinal diseases such as diarrhea and UC. Nevertheless, the exact mechanism of it needs to be further clarified. PURPOSE We aimed to investigate the treatment effects of modified GQD (MGQD) on dextran sodium sulfate (DSS)-induced chronic colitis in mice and conduct further exploration of its underlying mechanisms. METHODS The protective effect of MGQD was estimated in a DSS-induced chronic colitis mouse model. Model evaluation included body weight, disease activity index (DAI) score, colon length and histopathology. Alcian Blue/Phosphoric Acid Schiff (AB/PAS) staining, transmission electron microscopy (TEM), immunofluorescence and real time‒PCR (RT-PCR) were used to assess goblet cell function. ELISA, flow cytometry and immunofluorescence were applied to estimate the immunoinflammatory status. Western blot was performed to test the protein expression levels of relevant pathways and related receptors. All experiments were conducted in duplicate. RESULTS MGQD alleviated DSS‑induced chronic colitis symptoms in mice, protected goblet cell function and restored the intestinal mucus barrier. Furthermore, MGQD efficiently suppressed the abnormal immune inflammatory response and the activate of γδT17 cells and NLRP3 inflammasome. CONCLUSION The mechanisms by which MGQD protects against DSS-induced chronic colitis may involve restoring goblet cell function, repairing the intestinal mucus barrier, and modulating the immune inflammatory response. More importantly, MGQD inhibited NLRP3 inflammasome-associated signaling pathway activation, which consequently reduced the activation of γδT17 cells.
Collapse
Affiliation(s)
- Jing Ma
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Jiaqi Zhang
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Yifan Wang
- Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), 100091, Beijing, China
| | - Jinke Huang
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Xuefei Yang
- Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), 100091, Beijing, China
| | - Jinxin Ma
- Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), 100091, Beijing, China
| | - Zhihong Liu
- Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), 100091, Beijing, China
| | - Fengyun Wang
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Xudong Tang
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China.
| |
Collapse
|
27
|
Nan Q, Ye Y, Tao Y, Jiang X, Miao Y, Jia J, Miao J. Alterations in metabolome and microbiome signatures provide clues to the role of antimicrobial peptide KT2 in ulcerative colitis. Front Microbiol 2023; 14:1027658. [PMID: 36846795 PMCID: PMC9947474 DOI: 10.3389/fmicb.2023.1027658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 01/10/2023] [Indexed: 02/11/2023] Open
Abstract
Introduction Ulcerative colitis (UC) is an inflammatory disease of the intestinal tract with unknown etiology. Both genetic and environmental factors are involved in the occurrence and development of UC. Understanding changes in the microbiome and metabolome of the intestinal tract is crucial for the clinical management and treatment of UC. Methods Here, we performed metabolomic and metagenomic profiling of fecal samples from healthy control mice (HC group), DSS (Dextran Sulfate Sodium Salt) -induced UC mice (DSS group), and KT2-treated UC mice (KT2 group). Results and Discussion In total, 51 metabolites were identified after UC induction, enriched in phenylalanine metabolism, while 27 metabolites were identified after KT2 treatment, enriched in histidine metabolism and bile acid biosynthesis. Fecal microbiome analysis revealed significant differences in nine bacterial species associated with the course of UC, including Bacteroides, Odoribacter, and Burkholderiales, which were correlated with aggravated UC, and Anaerotruncus, Lachnospiraceae, which were correlated with alleviated UC. We also identified a disease-associated network connecting the above bacterial species with UC-associated metabolites, including palmitoyl sphingomyelin, deoxycholic acid, biliverdin, and palmitoleic acid. In conclusion, our results indicated that Anaerotruncus, Lachnospiraceae, and Mucispirillum were protective species against DSS-induced UC in mice. The fecal microbiomes and metabolomes differed significantly among the UC mice and KT2-treated and healthy-control mice, providing potential evidence for the discovery of biomarkers of UC.
Collapse
Affiliation(s)
- Qiong Nan
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China,Yunnan Province Clinical Research Center for Digestive Diseases, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yan Ye
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China,Yunnan Province Clinical Research Center for Digestive Diseases, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yan Tao
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China,Yunnan Province Clinical Research Center for Digestive Diseases, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Xinyi Jiang
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China,Yunnan Province Clinical Research Center for Digestive Diseases, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yinglei Miao
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China,Yunnan Province Clinical Research Center for Digestive Diseases, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China,Yinglei Miao,
| | - Jie Jia
- Scientific Research Laboratory Center, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China,Jie Jia,
| | - Jiarong Miao
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China,Yunnan Province Clinical Research Center for Digestive Diseases, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China,*Correspondence: Jiarong Miao,
| |
Collapse
|
28
|
Kweon DY, Song HJ, Kim JE, Jin YJ, Roh YJ, Seol A, Park JM, Lee ES, Choi WS, Hwang DY. Therapeutic Effects of Aloe saponaria against Ulcerative Colitis Induced by Dextran Sulfate Sodium. Curr Issues Mol Biol 2023; 45:1483-1499. [PMID: 36826041 PMCID: PMC9955819 DOI: 10.3390/cimb45020096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/14/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
Aloe vera (A. vera) has been studied as a treatment option for ulcerative colitis (UC), but there is a lack of scientific evidence showing whether treatment with Aloe saponaria (A. saponaria) can also be beneficial. To investigate the therapeutic potential of A. saponaria as a treatment for UC, clinical symptoms, histopathological characteristics of the colon, inflammatory response, and toxicity were analyzed in dextran sulfate sodium (DSS)-induced UC mice after administration of aqueous extracts of A. saponaria (AAS) for 7 days. The total polyphenol and tannin content of AAS was 272 µg/g and 163 µg/g, respectively. AAS exhibited significant antioxidant activity. Several clinical symptoms, including body weight, colon length, and hematochezia, remarkably improved in the DSS+AAS treated group compared to the DSS+Vehicle-treated group. In addition, similar improvements were detected in the histopathological characteristics and mucin-secreting ability in the colon of DSS-induced UC mice after the administration of AAS. The levels of infiltrated inflammatory cells and cytokine expression were significantly decreased in a dose-dependent manner in the colon of the DSS+AAS-treated group. These alterations in inflammatory response were accompanied by a significant recovery of the protein kinase C/extracellular signal-regulated kinase (PKC/ERK) and phosphatidylinositol-3-kinase/serine-threonine protein kinase (PI3K/Akt) signaling pathways. However, the levels of key markers for hepatotoxicity and nephrotoxicity consistently remained between those of the DSS+AAS-treated and the No groups. Therefore, the results of the present study provide novel evidence that AAS may improve the clinical symptoms and attenuate the inflammatory response in DSS-induced UC mice and does not have any significant hepatotoxicity or nephrotoxicity.
Collapse
Affiliation(s)
- Do Yeong Kweon
- Department of Bio-Industrial Machinery Engineering/Life, Industry Convergence Research Institute, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Republic of Korea
| | - Hee Jin Song
- Department of Biomaterials Science (BK21 FOUR Program)/Life, Industry Convergence Research Institute, Laboratory Animals Resources Center, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Republic of Korea
| | - Ji Eun Kim
- Department of Biomaterials Science (BK21 FOUR Program)/Life, Industry Convergence Research Institute, Laboratory Animals Resources Center, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Republic of Korea
| | - You Jeong Jin
- Department of Biomaterials Science (BK21 FOUR Program)/Life, Industry Convergence Research Institute, Laboratory Animals Resources Center, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Republic of Korea
| | - Yu Jeong Roh
- Department of Biomaterials Science (BK21 FOUR Program)/Life, Industry Convergence Research Institute, Laboratory Animals Resources Center, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Republic of Korea
| | - Ayun Seol
- Department of Biomaterials Science (BK21 FOUR Program)/Life, Industry Convergence Research Institute, Laboratory Animals Resources Center, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Republic of Korea
| | - Ju Min Park
- Department of Food Science and Nutrition, College of Human Ecology, Pusan National University, Busan 46241, Republic of Korea
| | - Eun Suk Lee
- Department of Bio-Industrial Machinery Engineering/Life, Industry Convergence Research Institute, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Republic of Korea
| | - Won Sik Choi
- Department of Bio-Industrial Machinery Engineering/Life, Industry Convergence Research Institute, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Republic of Korea
| | - Dae Youn Hwang
- Department of Biomaterials Science (BK21 FOUR Program)/Life, Industry Convergence Research Institute, Laboratory Animals Resources Center, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Republic of Korea
- Correspondence:
| |
Collapse
|
29
|
López‐Estévez S, López‐Torrellardona JM, Parera M, Martínez V. Long-lasting visceral hypersensitivity in a model of DSS-induced colitis in rats. Neurogastroenterol Motil 2022; 34:e14441. [PMID: 36239298 PMCID: PMC9787759 DOI: 10.1111/nmo.14441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 05/31/2022] [Accepted: 07/18/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND Persistent visceral hypersensitivity is a key component of functional and inflammatory gastrointestinal diseases. Current animal models fail to fully reproduce the characteristics of visceral pain in humans, particularly as it relates to persistent hypersensitivity. This work explores the validity of DSS-induced colitis in rats as a model to mimic chronic intestinal hypersensitivity. METHODS Exposure to DSS (5% for 7 days) was used to induce colitis in rats. Thereafter, changes in viscerosensitivity (visceromotor responses to colorectal distension-CRD), the presence of somatic referred pain (mechanosensitivity of the hind paws, von Frey test) and the expression (qRT-PCR) of sensory-related markers (colon, lumbosacral DRGs, and lumbosacral spinal cord) were assessed at different times during the 35 days period after colitis induction. RESULTS Following colitis, a sustained increase in visceromotor responses to CRD were observed, indicative of the presence of visceral hypersensitivity. Responses in animals without colitis remained stable over time. In colitic animals, somatic referred hypersensitivity was also detected. DSS-induced colitis was associated to a differential expression of sensory-related markers (with both pro- and anti-nociceptive action) in the colon, lumbosacral DRGs and lumbosacral spinal cord; indicating the presence of peripheral and central sensitization. CONCLUSIONS AND INFERENCES DSS-induced colitis in rats is associated to the generation of a long-lasting state of visceral (colonic) hypersensitivity, despite clinical colitis resolution. This model reproduces the changes in intestinal sensitivity characteristics of inflammatory and functional gastrointestinal disorders in humans and can be used in the characterization of new pharmacological treatments against visceral pain.
Collapse
Affiliation(s)
- Sergio López‐Estévez
- Department of Cell Biology, Physiology and ImmunologyUniversitat Autònoma de BarcelonaBarcelonaSpain,Neuroscience InstituteUniversitat Autònoma de BarcelonaBarcelonaSpain
| | | | - Marc Parera
- Department of Cell Biology, Physiology and ImmunologyUniversitat Autònoma de BarcelonaBarcelonaSpain
| | - Vicente Martínez
- Department of Cell Biology, Physiology and ImmunologyUniversitat Autònoma de BarcelonaBarcelonaSpain,Neuroscience InstituteUniversitat Autònoma de BarcelonaBarcelonaSpain,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd)Instituto de Salud Carlos IIIMadridSpain
| |
Collapse
|
30
|
Huang J, Zhang J, Wang F, Zhang B, Tang X. Comprehensive analysis of cuproptosis-related genes in immune infiltration and diagnosis in ulcerative colitis. Front Immunol 2022; 13:1008146. [PMID: 36389705 PMCID: PMC9644813 DOI: 10.3389/fimmu.2022.1008146] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 10/11/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives Cuproptosis is a recently discovered form of programmed cell death; however, its role in ulcerative colitis (UC) remains a void. Methods Three gene expression profiles were acquired from the GEO database. Subsequently, the single sample gene set enrichment analysis (ssGSEA) was performed to identify the immune infiltration characteristics of UC. Correlation analysis between cuproptosis and immune infiltration was further conducted, and the cuproptosis-related genes were applied to construct a UC diagnostic model. Subsequently, analysis results of microarray data were experimentally validated by DSS-induced colitis in mice. Finally, therapeutic agents for the cuproptosis-related genes were screened owing to the gaping field of therapeutic agents on cuproptosis. Results Three gene expression profiles with 343 samples (290 UC and 53 healthy samples) were included. Immune infiltration revealed that UC patients had a higher level of DCs, B cells, CD8+ T cells, iDCs, Macrophages, neutrophils, pDCs, T helper cells, Tfh, Th1 cells, Th2 cells, TIL and Treg than normal subjects. Moreover, almost all cuproptosis-related genes were significantly negatively associated with immune infiltration in UC patients. The risk prediction model based on cuproptosis-related genes showed an excellent discrimination for UC. Animal experiments revealed significant alterations in genes essential for cuproptosis between DSS-induced colitis mice and healthy controls, providing experimental validation for the analysis results of microarray data. Further analysis revealed that latamoxef, vitinoin, clomipramine, chlorzoxazone, glibenclamide, pyruvic acid, clindamycin, medrysone, caspan, and flavin adenine dinucleotide might be the target agents for cuproptosis-related genes. Conclusions In conclusion, cuproptosis was significantly associated with immune infiltration in UC, and the cuproptosis-related genes showed an excellent discrimination for UC.
Collapse
Affiliation(s)
- Jinke Huang
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Jiaqi Zhang
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Fengyun Wang
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Beihua Zhang
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Xudong Tang
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China,*Correspondence: Xudong Tang,
| |
Collapse
|
31
|
Liang C, Tang Y, Gao X, Lei N, Luo Y, Chen P, Duan S, Cao Y, Yang Y, Zhang Y. Depression Exacerbates Dextran Sulfate Sodium-Induced Colitis via IRF5-Mediated Macrophage Polarization. Dig Dis Sci 2022; 68:1269-1279. [PMID: 36088512 DOI: 10.1007/s10620-022-07679-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 08/18/2022] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIMS Patients with inflammatory bowel disease (IBD) and concurrent depression are predisposed to severer disease activity and a worse prognosis. Macrophage polarization toward the M1 phenotype may contribute to the exacerbation of IBD with comorbid depression. Moreover, interferon regulatory factor 5 (IRF5) is involved in the pathogenesis of IBD. The aim of this study was to explore the role of IRF5 in macrophage polarization in the impact of depression upon colitis. METHODS Depressive-like behavior was induced by repeated forced swim stress. Colon length, disease activity index (DAI), colon morphology, histology, ultrastructure of epithelial barrier, lamina propria macrophage polarization, and expression of IRF5 were compared between DSS colitis rats with and without depressive-like behavior. IRF5 shRNA was constructed to affect the rat peritoneal macrophages polarization in vitro. After IRF5 shRNA lentivirus was introduced into colon by enema, the colitis severity, lamina propria macrophage polarization, and TNF-α, IL-1β, and IL-10 of colon tissues were measured. RESULTS The study found severer colonic inflammation in depressed versus non-depressed DSS-colitis rats. Depressed DSS-colitis rats exhibited smaller subepithelial macrophages size and reduced intracellular granule diversity compared with nondepressed DSS-colitis rats. Increased polarization toward the M1 phenotype, elevated expression of IRF5, and co-expression of IRF5 with CD86 were found in depressed versus nondepressed DSS-colitis rats. Lentivirus-mediated shRNA interference with IRF5 expression switched rat peritoneal macrophage polarization from the M1 to the M2 phenotype, downregulated TNF-α, IL-1β expression to a greater extent in depressed versus nondepressed colitis rats. CONCLUSIONS IRF5-mediated macrophage polarization may likely underlie the deterioration of DSS-induced colitis caused by depression.
Collapse
Affiliation(s)
- Chang Liang
- Department of Gastroenterology, West China Hospital of Sichuan University, No. 37 Guoxue Street, Chengdu, Sichuan, China
| | - Yu Tang
- Department of Gastroenterology, West China Hospital of Sichuan University, No. 37 Guoxue Street, Chengdu, Sichuan, China
| | - Xin Gao
- Department of Gastroenterology, West China Hospital of Sichuan University, No. 37 Guoxue Street, Chengdu, Sichuan, China
| | - Na Lei
- Department of Gastroenterology, West China Hospital of Sichuan University, No. 37 Guoxue Street, Chengdu, Sichuan, China
| | - Ying Luo
- Department of Gastroenterology, West China Hospital of Sichuan University, No. 37 Guoxue Street, Chengdu, Sichuan, China
| | - Pingrun Chen
- Department of Gastroenterology, West China Hospital of Sichuan University, No. 37 Guoxue Street, Chengdu, Sichuan, China
| | - Shihao Duan
- Department of Gastroenterology, West China Hospital of Sichuan University, No. 37 Guoxue Street, Chengdu, Sichuan, China
| | - Yubin Cao
- Department of Gastroenterology, West China Hospital of Sichuan University, No. 37 Guoxue Street, Chengdu, Sichuan, China
| | - Yi Yang
- Department of Gastroenterology, West China Hospital of Sichuan University, No. 37 Guoxue Street, Chengdu, Sichuan, China
| | - Yan Zhang
- Department of Gastroenterology, West China Hospital of Sichuan University, No. 37 Guoxue Street, Chengdu, Sichuan, China.
| |
Collapse
|
32
|
Zhang Z, Cui Y, Liu S, Huang J, Liu Y, Zhou Y, Zhu Z. Short-term treatment with zingerone ameliorates dextran sulfate sodium-induced mouse experimental colitis. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:4873-4882. [PMID: 35246845 DOI: 10.1002/jsfa.11850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 02/12/2022] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Ulcerative colitis (UC) is a relapsing and chronic inflammatory disease of the gastrointestinal tract, which seriously threatens human health. Zingerone (ZO) has been proven to be effective for many diseases. The purpose of this study is to investigate the protective effects and potential mechanisms of ZO extracted from ginger on dextran sulfate sodium (DSS)-induced mouse ulcerative colitis (UC). RESULTS The results showed that ZO alleviated the weight loss of UC model mice, reduced the disease activity index scores, and inhibited the shortening of colon length. ZO also improved DSS-induced pathological changes in colon tissue and inhibited the secretion of pro-inflammatory cytokines in colon and mesenteric lymph nodes. Further mechanism analysis found that ZO inhibited DSS-induced nuclear factor-κB pathway activation, and regulated peroxisome proliferator-activated receptor γ (PPARγ) expression. To further explore whether PPARγ was involved in the anti-UC effect of ZO, PPARγ inhibitor GW9662 was used. Although ZO also showed a protective effect on GW9662-treated colitis mice, the protective role was significantly weakened. Importantly, the administration of GW9662 significantly aggravated UC compared with the ZO + DSS group. In addition, we preliminarily found that ZO had the effects of inhibiting DSS-induced oxidative stress, maintaining intestinal barrier, and inhibiting the content of LPS and the population of Escherichia coli. CONCLUSIONS These results indicated that supplementation with ZO might be a new dietary strategy for the treatment of UC. © 2022 Society of Chemical Industry.
Collapse
Affiliation(s)
- Zecai Zhang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
- Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention, Daqing, China
- Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, Daqing, China
- Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology, Daqing, China
| | - Yueqi Cui
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
- Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention, Daqing, China
| | - Siyu Liu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
- Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention, Daqing, China
| | - Jiang Huang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
- Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention, Daqing, China
| | - Yu Liu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
- Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention, Daqing, China
- Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, Daqing, China
- Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology, Daqing, China
| | - Yulong Zhou
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
- Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention, Daqing, China
- Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, Daqing, China
- Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology, Daqing, China
| | - Zhanbo Zhu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
- Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention, Daqing, China
- Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, Daqing, China
- Heilongjiang Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology, Daqing, China
| |
Collapse
|
33
|
Intrarectal Capsazepine Administration Modulates Colonic Mucosal Health in Mice. Int J Mol Sci 2022; 23:ijms23179577. [PMID: 36076974 PMCID: PMC9455796 DOI: 10.3390/ijms23179577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/10/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
Antagonism of transient receptor potential vanniloid-1 (TRPV1) and desensitization of transient receptor potential ankyrin-1 (TRPA1) nociceptors alleviate inflammatory bowel diseases (IBD)-associated chronic pain. However, there is limited literature available about their role in regulating the mucosal layer, its interaction with host physiology, and luminal microbial community. The present study focuses on the effects’ intra rectal administration of capsazepine (modulator of TRPA1/TRPV1 expressing peptidergic sensory neurons) on colonic mucus production and gut health. We performed histological analysis, gut permeability alteration, gene expression changes, metabolite profiling, and gut microbial abundance in the ileum, colon, and cecum content of these animals. Intra rectal administration of capsazepine modulates TRPA1/TRPV1-positive nociceptors (behavioral pain assays) and resulted in damaged mucosal lining, increased gut permeability, and altered transcriptional profile of genes for goblet cell markers, mucus regulation, immune response, and tight junction proteins. The damage to mucosal lining prevented its role in enterosyne (short chain fatty acids) actions. These results suggest that caution must be exercised before employing TRPA1/TRPV1 modulation as a therapeutic option to alleviate pain caused due to IBD.
Collapse
|
34
|
Lee JH, Jeon YD, Xin M, Lim JY, Lee YM, Kim DK. Mast cell modulates tumorigenesis caused by repeated bowel inflammation condition in azoxymethane/dextran sodium sulfate-induced colon cancer mouse model. Biochem Biophys Rep 2022; 30:101253. [PMID: 35378739 PMCID: PMC8976097 DOI: 10.1016/j.bbrep.2022.101253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 11/30/2022] Open
Abstract
Mast cells infiltrate the inflammatory microenvironment and regulate the production of many pro-inflammatory cytokines and mediators of inflammatory cell production to promote tumor development and growth in intestinal lesions. Currently, there are insufficient studies of the mediators and signaling pathways regulated by mast cells that influence the pathogenesis of colon cancer in inflamed colon tissue. This study aimed to confirm the role of mast cells in the incidence and growth of colitis-associated colon cancer (CAC) and to identify inflammation-mediated factors and signaling pathways related to tumor development. CAC was induced by the administration of azoxymethane (AOM) and dextran sodium sulfate (DSS) in mast cell-deficient (WBB6F1/J-W/WV) and mast cell–sufficient control (WBB6F1_+/+) mice. The results confirmed that mast cell-deficient mice exhibited less tumor formation than normal mice under the same conditions, and down-regulated expression of pro-inflammatory cytokines and mediators. Mast cells play an important role in tumor formation by regulating pro-inflammatory cytokines and inflammatory mediators in CAC, indicating that they can act as new targets for the prevention and treatment of CAC. Mast cell deficiency attenuates AOM/DSS-induced colitis-associated colon cancer (CAC) symptoms. Mast cell deficiency decreases colorectal tumorigenesis in AOM/DSS-induced CAC mice. Mast cell deficiency alleviates pro-inflammatory cytokine secretion, such as TNF-α, IL-1β, and IL-6 in AOM/DSS-induced CAC mice. Mast cell deficiency reduces the expressions of Ki-67 and β-catenin in AOM/DSS-induced CAC mice.
Collapse
|
35
|
Ye B, Lu Z. Role of TRIM22 in ulcerative colitis and its underlying mechanisms. Mol Med Rep 2022; 26:249. [PMID: 35674157 PMCID: PMC9218723 DOI: 10.3892/mmr.2022.12765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 03/16/2022] [Indexed: 12/03/2022] Open
Abstract
Ulcerative colitis (UC) is a common chronic recurrent inflammatory disease, which seriously threatens human life and health. Therefore, the present study aimed to explore the role of tripartite motif-containing (TRIM)22 in UC and its potential mechanism. C57BL/6 mice and HT-29 cell models of UC were constructed using 2% dextran sulphate sodium (DSS). The protein and mRNA expression levels were detected by western blotting and reverse transcription-quantitative PCR, respectively. Cell transfection was performed to overexpress Kruppel-like factor 2 (KLF2), or knockdown KLF2, TRIM22 and TRIM30 expression. The levels of inflammatory factors were evaluated by enzyme-linked immunosorbent assays. Cell Counting Kit-8 and TUNEL staining assay were employed to assess cell viability and apoptosis. Dual-luciferase reporter assay and chromatin immunoprecipitation assay were performed to determine the binding ability of the TRIM22 promoter to KLF2. The results revealed that DSS increased the expression levels of TRIM22 in HT-29 cells and TRIM30 in mice. Short hairpin RNA (sh)-TRIM30 could inhibit the NF-κB pathway, and reduce the levels of TNF-α, IL-6 and IFN-γ. Furthermore, KLF2 expression was downregulated in the cell model of UC, and the luciferase assay confirmed that the 3′ untranslated region of TRIM22 was a direct target of KLF2. The ChIP assay also verified the binding of KLF2 with the TRIM22 promoter. Notably, knockdown of KLF2 reversed the enhancing effects of sh-TRIM22 on the viability of DSS-treated HT-29 cells. In addition, compared with in the DSS + sh-TRIM22 group, the protein expression levels of phosphorylated (p)-NF-κB and p-IκBα were increased in the DSS + sh-TRIM22 + sh-KLF2 group, as were the levels of TNF-α, IL-6 and IFN-γ. In conclusion, TRIM22 was upregulated in DSS-induced HT-29 cells. TRIM22 knockdown increased DSS-induced HT-29 cell viability and decreased apoptosis and inflammation; this was reversed by knockdown of KLF2. These findings suggested that TRIM22 may promote disease development through the NF-κB signaling pathway in UC and could be inhibited by KLF2 transcription.
Collapse
Affiliation(s)
- Bin Ye
- Department of Gastroenterology, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang 310000, P.R. China
| | - Zhongkai Lu
- Department of Gastroenterology, Suzhou Municipal Hospital, Suzhou Hospital Affiliated to Nanjing Medical University, Suzhou, Jiangsu 215001, P.R. China
| |
Collapse
|
36
|
Ye Z, Zhu Y, Tang N, Zhao X, Jiang J, Ma J, Zhang H. α7 nicotinic acetylcholine receptor agonist GTS-21 attenuates DSS-induced intestinal colitis by improving intestinal mucosal barrier function. Mol Med 2022; 28:59. [PMID: 35659178 PMCID: PMC9164421 DOI: 10.1186/s10020-022-00485-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 05/05/2022] [Indexed: 12/02/2022] Open
Abstract
Background and aims Cholinergic output, which could modulate innate immune responses through stimulation of α7 nicotinic acetylcholine receptor (α7nAChR), might be a target to minimize tissue damage in autoimmune disease. GTS-21, a selective α7nAChR agonist, has previously demonstrated to inhibit synovium inflammation in rheumatoid arthritis. In this study, we investigated the effect of GTS-21 on dextran sulfate sodium (DSS)-induced colitis model and its potential mechanism. Methods Male BABL/c mice (n = 32) were randomly divided into four groups: normal control group, DSS-induced colitis group, GTS-21 treatment with or without α7nAChR antagonist α-BGT treatment group. Disease activity index (DAI), histological activity index (HAI) and colonic macroscopic damage were evaluated. Fluorescein isothiocyanate (FITC)–dextran assay was applied to measure intestinal permeability. The expressions of tight junction (TJ) proteins and NF-κB associated proteins were detected by Western blot. Results GTS-21 could decrease DAI scores, HAI scores, intestinal permeability and reduce the intestinal bacterial translocation in DSS-induced colitis group, whereas α7nAChR antagonist α-BGT could impair this protective influence. The expressions of TJ proteins were increased with administration of GTS-21 both in vivo and in vitro. Furthermore, GTS-21 also inhibited the NF-қB activation in intestinal epithelial cells and colitis model, while α-BGT reversed the inhibitory effect. Conclusion The α7nAChR agonist GTS-21 attenuated DSS-induced colitis through increasing expressions of TJ proteins in colon tissues and improved intestinal barrier function, which might be due to modulating NF-қB activation in intestinal epithelial cells. Supplementary Information The online version contains supplementary material available at 10.1186/s10020-022-00485-6.
Collapse
Affiliation(s)
- Ziping Ye
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China
| | - Yunjuan Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China.,Department of Gastroenterology, Ganyu District People's Hospital of Lianyungang City, Lianyungang, Jiangsu Province, People's Republic of China
| | - Nana Tang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China
| | - Xiaojing Zhao
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China
| | - Jingyue Jiang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China
| | - Jingjing Ma
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China
| | - Hongjie Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China.
| |
Collapse
|
37
|
Chang SC, Chiang HH, Liu CY, Li YJ, Lu CL, Lee YP, Huang CJ, Lai CL. Intestinal Mucosal Barrier Improvement with Prebiotics: Histological Evaluation of Longish Glucomannan Hydrolysates-Induced Innate T Lymphocyte Activities in Mice. Nutrients 2022; 14:nu14112220. [PMID: 35684019 PMCID: PMC9182621 DOI: 10.3390/nu14112220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/24/2022] [Accepted: 05/24/2022] [Indexed: 12/04/2022] Open
Abstract
Use of prebiotics is a growing topic in healthcare. A lightweight molecule and water-soluble fiber ingredient, longish glucomannan hydrolysates (LGH), has been developed to improve the intestinal mucosal barrier and confer gut health benefits. This study aims to investigate the implications of continuous LGH intervening in intestinal epithelium integrity and protective immunity against chemical dextran sodium sulfate (DSS)-induced colitis. Twelve male BALB/c mice were randomly arranged into four groups. The LGH/DSS group had results in bodyweight variance, epithelial cell density, and aberrancy score as good as the LGH group, and both were equivalent to the control group. LGH consumption effectively protects the distal intestinal epithelium by activating innate T lymphocytes. Meanwhile, T-cell subsets in subepithelial interspersion take a bystander role in these microenvironmental alterations. Under this stress, the cluster of differentiation 3 (CD3)+ T cells infiltrate the epithelium, while CD4+ T cells inversely appear in submucosal large lymphoid aggregates/isolated lymphoid follicles (ILFs) in which significant CD3+, CD4+, and CD8+ T-cell populations agglomerate. Moreover, forkhead box P3 (Foxp3) and interleukin 17 (IL-17) are observed in these ILFs. Agglomerated CD4+ T-cell lineages may have roles with proinflammatory T helper 17 cells and anti-inflammatory regulatory T cells in balancing responses to intraluminal antigens. Collectively, LGH administration may function in immune modulation to protect against DSS-induced inflammation.
Collapse
Affiliation(s)
- Shih-Chang Chang
- Division of Colorectal Surgery, Department of Surgery, Cathay General Hospital, Taipei 106438, Taiwan;
| | - Hui-Hsun Chiang
- School of Nursing, National Defense Medical Center, Taipei 114201, Taiwan;
| | - Chih-Yi Liu
- Division of Pathology, Sijhih Cathay General Hospital, New Taipei City 221037, Taiwan;
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City 242062, Taiwan
| | - Yu-Ju Li
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
| | - Chung-Lun Lu
- Aquatic Technology Research Center, Agricultural Technology Research Institute, Xiangshan, Hsinchu 300110, Taiwan;
| | - Yung-Pin Lee
- Research and Development, Healthy-Bioceuticals Company, Taipei 114201, Taiwan;
| | - Chi-Jung Huang
- Department of Medical Research, Cathay General Hospital, Taipei 106438, Taiwan;
- Department of Biochemistry, National Defense Medical Center, Taipei 114201, Taiwan
| | - Ching-Long Lai
- Division of Basic Medical Sciences, Department of Nursing, Chang Gung University of Science and Technology, Taoyuan 333324, Taiwan
- Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Taoyuan 333324, Taiwan
- Correspondence:
| |
Collapse
|
38
|
Zhu Y, Duan S, Wang M, Deng Z, Li J. Neuroimmune Interaction: A Widespread Mutual Regulation and the Weapons for Barrier Organs. Front Cell Dev Biol 2022; 10:906755. [PMID: 35646918 PMCID: PMC9130600 DOI: 10.3389/fcell.2022.906755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 04/26/2022] [Indexed: 12/12/2022] Open
Abstract
Since the embryo, the nervous system and immune system have been interacting to regulate each other’s development and working together to resist harmful stimuli. However, oversensitive neural response and uncontrolled immune attack are major causes of various diseases, especially in barrier organs, while neural-immune interaction makes it worse. As the first defense line, the barrier organs give a guarantee to maintain homeostasis in external environment. And the dense nerve innervation and abundant immune cell population in barrier organs facilitate the neuroimmune interaction, which is the physiological basis of multiple neuroimmune-related diseases. Neuroimmune-related diseases often have complex mechanisms and require a combination of drugs, posing challenges in finding etiology and treatment. Therefore, it is of great significance to illustrate the specific mechanism and exact way of neuro-immune interaction. In this review, we first described the mutual regulation of the two principal systems and then focused on neuro-immune interaction in the barrier organs, including intestinal tract, lungs and skin, to clarify the mechanisms and provide ideas for clinical etiology exploration and treatment.
Collapse
Affiliation(s)
- Yan Zhu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
| | - Shixin Duan
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
| | - Mei Wang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
| | - Zhili Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Zhili Deng, ; Ji Li,
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Zhili Deng, ; Ji Li,
| |
Collapse
|
39
|
Bai B, Li H, Han L, Mei Y, Hu C, Mei Q, Xu J, Liu X. Molecular mechanism of the TGF‑β/Smad7 signaling pathway in ulcerative colitis. Mol Med Rep 2022; 25:116. [PMID: 35137923 PMCID: PMC8855156 DOI: 10.3892/mmr.2022.12632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 12/03/2021] [Indexed: 11/10/2022] Open
Abstract
Aberrant TGF‑β/Smad7 signaling has been reported to be an important mechanism underlying the pathogenesis of ulcerative colitis. Therefore, the present study aimed to investigate the effects of a number of potential anti‑colitis agents on intestinal epithelial permeability and the TGF‑β/Smad7 signaling pathway in an experimental model of colitis. A mouse model of colitis was first established before anti‑TNF‑α and 5‑aminosalicyclic acid (5‑ASA) were administered intraperitoneally and orally, respectively. Myeloperoxidase (MPO) activity, histological index (HI) of the colon and the disease activity index (DAI) scores were then detected in each mouse. Transmission electron microscopy (TEM), immunohistochemical and functional tests, including Evans blue (EB) and FITC‑dextran (FD‑4) staining, were used to evaluate intestinal mucosal permeability. The expression of epithelial phenotype markers E‑cadherin, occludin, zona occludens (ZO‑1), TGF‑β and Smad7 were measured. In addition, epithelial myosin light chain kinase (MLCK) expression and activity were measured. Anti‑TNF‑α and 5‑ASA treatments was both found to effectively reduce the DAI score and HI, whilst decreasing colonic MPO activity, plasma levels of FD‑4 and EB permeation of the intestine. Furthermore, anti‑TNF‑α and 5‑ASA treatments decreased MLCK expression and activity, reduced the expression of Smad7 in the small intestine epithelium, but increased the expression of TGF‑β. In mice with colitis, TEM revealed partial epithelial injury in the ileum, where the number of intercellular tight junctions and the expression levels of E‑cadherin, ZO‑1 and occludin were decreased, all of which were alleviated by anti‑TNF‑α and 5‑ASA treatment. In conclusion, anti‑TNF‑α and 5‑ASA both exerted protective effects on intestinal epithelial permeability in an experimental mouse model of colitis. The underlying mechanism may be mediated at least in part by the increase in TGF‑β expression and/or the reduction in Smad7 expression, which can inhibit epithelial MLCK activity and in turn reduce mucosal permeability during the pathogenesis of ulcerative colitis.
Collapse
Affiliation(s)
- Bingqing Bai
- Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
- The Key Laboratory of Digestive Diseases of Anhui Province, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Huihui Li
- The Key Laboratory of Digestive Diseases of Anhui Province, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
- Department of Gastroenterology, Fuyang Cancer Hospital, Fuyang, Anhui 236010, P.R. China
| | - Liang Han
- The Key Laboratory of Digestive Diseases of Anhui Province, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
- Department of Gastroenterology, Hangzhou Ninth People's Hospital, Hangzhou, Zhejiang 311225, P.R. China
| | - Yongyu Mei
- The Key Laboratory of Digestive Diseases of Anhui Province, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
- Department of Gastroenterology, Wuhu Second People's Hospital, Wuhu, Anhui 241000, P.R. China
| | - Cui Hu
- Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
- The Key Laboratory of Digestive Diseases of Anhui Province, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Qiao Mei
- Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
- The Key Laboratory of Digestive Diseases of Anhui Province, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Jianming Xu
- Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
- The Key Laboratory of Digestive Diseases of Anhui Province, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Xiaochang Liu
- Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
- The Key Laboratory of Digestive Diseases of Anhui Province, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| |
Collapse
|
40
|
Wan H, Chen XY, Zhang F, Chen J, Chu F, Sellers ZM, Xu F, Dong H. Capsaicin inhibits intestinal Cl - secretion and promotes Na + absorption by blocking TRPV4 channels in healthy and colitic mice. J Biol Chem 2022; 298:101847. [PMID: 35314195 PMCID: PMC9035713 DOI: 10.1016/j.jbc.2022.101847] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 01/06/2023] Open
Abstract
Although capsaicin has been studied extensively as an activator of the transient receptor potential vanilloid cation channel subtype 1 (TRPV1) channels in sensory neurons, little is known about its TRPV1-independent actions in gastrointestinal health and disease. Here, we aimed to investigate the pharmacological actions of capsaicin as a food additive and medication on intestinal ion transporters in mouse models of ulcerative colitis (UC). The short-circuit current (Isc) of the intestine from WT, TRPV1-, and TRPV4-KO mice were measured in Ussing chambers, and Ca2+ imaging was performed on small intestinal epithelial cells. We also performed Western blots, immunohistochemistry, and immunofluorescence on intestinal epithelial cells and on intestinal tissues following UC induction with dextran sodium sulfate. We found that capsaicin did not affect basal intestinal Isc but significantly inhibited carbachol- and caffeine-induced intestinal Isc in WT mice. Capsaicin similarly inhibited the intestinal Isc in TRPV1 KO mice, but this inhibition was absent in TRPV4 KO mice. We also determined that Ca2+ influx via TRPV4 was required for cholinergic signaling–mediated intestinal anion secretion, which was inhibited by capsaicin. Moreover, the glucose-induced jejunal Iscvia Na+/glucose cotransporter was suppressed by TRPV4 activation, which could be relieved by capsaicin. Capsaicin also stimulated ouabain- and amiloride-sensitive colonic Isc. Finally, we found that dietary capsaicin ameliorated the UC phenotype, suppressed hyperaction of TRPV4 channels, and rescued the reduced ouabain- and amiloride-sensitive Isc. We therefore conclude that capsaicin inhibits intestinal Cl- secretion and promotes Na+ absorption predominantly by blocking TRPV4 channels to exert its beneficial anti-colitic action.
Collapse
Affiliation(s)
- Hanxing Wan
- Department of Pediatric Intensive Care Unit, Children's Hospital of Chongqing Medical University; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Xiong Ying Chen
- Department of Pediatric Intensive Care Unit, Children's Hospital of Chongqing Medical University; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Fenglian Zhang
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Jun Chen
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Fenglan Chu
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Zachary M Sellers
- Pediatric Gastroenterology Hepatology & Nutrition, Stanford University School of Medicine, Palo Alto, CA 94304, USA
| | - Feng Xu
- Department of Pediatric Intensive Care Unit, Children's Hospital of Chongqing Medical University; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China.
| | - Hui Dong
- Department of Pediatric Intensive Care Unit, Children's Hospital of Chongqing Medical University; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China; Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China; Department of Medicine, School of Medicine, University of California, San Diego, CA 92093, USA.
| |
Collapse
|
41
|
Lu X, Jing Y, Zhang N, Cao Y. Eurotium cristatum, a Probiotic Fungus from Fuzhuan Brick Tea, and Its Polysaccharides Ameliorated DSS-Induced Ulcerative Colitis in Mice by Modulating the Gut Microbiota. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:2957-2967. [PMID: 35201766 DOI: 10.1021/acs.jafc.1c08301] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Eurotium cristatum is a potential probiotic fungus that is used to enhance Fuzhuan tea quality through fermentation and could reduce obesity by modulating gut dysbiosis. This study aimed to investigate the effects and possible mechanisms of killed E. cristatum (KEC) and its polysaccharides (ECP) in ulcerative colitis (UC) relief. KEC and ECP were administered to mice with dextran sulfate sodium-induced UC. The results showed that UC severity, intestinal inflammation, and tight junction protein levels were greatly improved. Furthermore, 16S rRNA sequencing results showed that Escherichia coli, Enterococcus faecium, Clostridium perfringens, Bacteroides caccae, Rothia aeria, and Prevotella melaninogenica were depleted, while Alistipes finegoldii and Bacteroides stercorirosoris were enriched. A fecal microbial transplantation trial confirmed that KEC and ECP ameliorated UC by regulating gut dysbiosis. Thus, this research suggests that KEC and ECP are novel, potent, food-based anti-inflammatory agents that relieve UC by modulating gut dysbiosis.
Collapse
Affiliation(s)
- Xiaojie Lu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun 130062, People's Republic of China
| | - Yue Jing
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun 130062, People's Republic of China
| | - Naisheng Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun 130062, People's Republic of China
| | - Yongguo Cao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun 130062, People's Republic of China
| |
Collapse
|
42
|
Yu H, Sun H, Wang K, Liang X, Ding Y, Chang X, Guo J, Peng D, Gui SY. Study of the therapeutic effects of Painong powder on ulcerative colitis and the role of Platycodonis Radix in the prescription based on pharmacodynamic, pharmacokinetic, and tissue distribution analyses. JOURNAL OF ETHNOPHARMACOLOGY 2022; 285:114872. [PMID: 34838618 DOI: 10.1016/j.jep.2021.114872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/18/2021] [Accepted: 11/23/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Herbal formulas have unique efficacy and are of great significance to the theory and practice of Chinese medicine and are therefore gaining increasing attention in research. Painong powder (PNS), composed of Aurantii fructus immaturus (Zhishi in Chinese, ZS), Paeoniae Radix Alba (Baishao in Chinese, BS), and Platycodonis Radix (Jiegeng in Chinese, JG), has remarkable effects on the detoxification and discharge of pus. JG is traditionally used to treat pulmonary carbuncles and is considered a 'medicinal guide'. According to the composition theory of prescriptions, JG is an 'assistant and guide' medicine. The role of JG as an adjuvant has gained increasing attention. AIM OF THE STUDY The study was designed to prove the efficacy of PNS in ulcerative colitis (UC) and to study the role of JG in PNS via pharmacodynamic, pharmacokinetic, and tissue distribution analyses. MATERIALS AND METHODS For the pharmacodynamic study, the UC rat model was induced using 5% trinitrobenzene sulfonic acid (TNBS). The results of the macroscopic characterization, histological analysis, and cytokine levels, including those of tumour necrosis factor-α (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6), and nuclear factor-kappa B (NF-κB), were integrated to evaluate the treatment of UC with PNS. In addition, an LC-MS/MS method was established and validated to analyze the blood pharmacokinetic parameters and tissue distribution of naringin and paeoniflorin. RESULTS After the administration of high-dose PNS, the UC rats showed amelioration of macroscopic damage at the lesion site. The cytokine levels in the plasma, colon, and lung tissues were also decreased. The pharmacokinetic parameters showed that compared with UC rats administered with PNS-JG, those administered with PNS showed an increase in the AUC, MRT, and Tmax of naringin and paeoniflorin, and a decrease in their clearance rate. Furthermore, naringin and paeoniflorin had higher concentrations in the colon and lung tissues in the normal and model groups administered with PNS than in those administered with PNS-JG. CONCLUSIONS PNS was shown to have marked therapeutic efficacy against TNBS-induced UC in rats. The effect of JG in PNS was reflected by the differences in the pharmacokinetic parameters and tissue distribution of the active components, providing valuable information for the clinical application of PNS in the treatment of UC. However, knowledge about how JG works as an adjuvant medicine in PNS is still lacking.
Collapse
Affiliation(s)
- Hanwen Yu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Han Sun
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; The Second Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Anhui, Hefei, 230061, China
| | - Kang Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Xiao Liang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Yang Ding
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei, China
| | - Xiangwei Chang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei, China; Anhui Province Key Laboratory of Pharmaceutical Technology and Application Anhui University of Chinese Medicine, Hefei, China
| | - Jian Guo
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Daiyin Peng
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Shuang Ying Gui
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei, China; Anhui Province Key Laboratory of Pharmaceutical Technology and Application Anhui University of Chinese Medicine, Hefei, China; Engineering Technology Research Center of Modernized Pharmaceutics Anhui Education Department AUCM, China.
| |
Collapse
|
43
|
Li H, Pang B, Nie B, Qu S, Zhang K, Xu J, Yang M, Liu J, Li S. Dioscin promotes autophagy by regulating the AMPK-mTOR pathway in ulcerative colitis. Immunopharmacol Immunotoxicol 2022; 44:238-246. [PMID: 35174751 DOI: 10.1080/08923973.2022.2037632] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Dioscin is reported to alleviate the dextran sodium sulfate (DSS)-induced ulcerative colitis (UC) in mice. Autophagy plays an anti-inflammatory role in UC. We herein aimed to explore the biological functions of dioscin in autophagy in UC. METHODS To explore the effects of dioscin on UC progression, a DSS-induced mouse model of UC was established. Body weight, disease activity index and macroscopic damage index scores were recorded for seven days. Hematoxylin & Eosin (HE) staining was used to stain colon sections and an BX53 microscope was prepared to observe pathological changes. The activities of glutathione, superoxidative dismutase, and malondialdehyde were determined by commercially available kits. Western blotting was performed to measure the protein levels of p-AMPK/AMPK, p-mTOR/mTOR and autophagy-related genes. RESULTS The DSS-induced colitis and oxidative stress in mice were ameliorated after dioscin treatment. Dioscin promoted the phosphorylation of AMPK to inhibit mTOR activation and facilitated autophagy in DSS-induced mice model of UC. CONCLUSION Dioscin promotes autophagy by promoting the phosphorylation of AMPK to inhibit mTOR activation in ulcerative colitis.
Collapse
Affiliation(s)
- Han Li
- Department of Geriatrics, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan, China
| | - Bo Pang
- Department of Geriatrics, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan, China
| | - Bin Nie
- Department of Geriatrics, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan, China
| | - Shifang Qu
- Department of Geriatrics, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan, China
| | - Kuanxin Zhang
- Department of Geriatrics, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan, China
| | - Jinxiu Xu
- Department of Geriatrics, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan, China
| | - Ming Yang
- Department of Geriatrics, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan, China
| | - Jie Liu
- Department of Geriatrics, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan, China
| | - Shasha Li
- Department of Geriatrics, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan, China
| |
Collapse
|
44
|
Liang L, Xiong Q, Kong J, Tian C, Miao L, Zhang X, Du H. Intraperitoneal supplementation of iron alleviates dextran sodium sulfate-induced colitis by enhancing intestinal barrier function. Biomed Pharmacother 2021; 144:112253. [PMID: 34607106 DOI: 10.1016/j.biopha.2021.112253] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/15/2021] [Accepted: 09/26/2021] [Indexed: 02/07/2023] Open
Abstract
Iron supplementation is necessary for the treatment of anemia, one of the most frequent complications in inflammatory bowel disease (IBD). However, oral iron supplementation leads to an exacerbation of intestinal inflammation. Gut barrier plays a key role in the pathogenesis of IBD. The aim of this study was to characterize the interrelationship between systemic iron, intestinal barrier and the development of intestinal inflammation in a dextran sulfate sodium (DSS) induced experimental colitis mice model. We found that DSS-treated mice developed severe inflammation of colon, but became much healthy when intraperitoneal injection with iron. Iron supplementation alleviated colonic and systemic inflammation by lower histological scores, restorative morphology of colonic villi, and reduced expression of pro-inflammatory cytokines. Moreover, intraperitoneal supplementation of iron enhanced intestinal barrier function by upregulating the colonic expressions of tight junction proteins, restoring intestinal immune homeostasis by regulating immune cell infiltration and T lymphocyte subsets, and increasing mucous secretion of goblet cells in the colon. High-throughput sequencing of fecal 16 S rRNA showed that iron injection significantly increased the relative abundance of Bacteroidetes, which was suppressed in the gut microbiota of DSS-induced colitis mice. These results provided evidences supporting the protective effects of systemic iron repletion by intraperitoneal injection of iron on intestinal barrier functions. The finding highlights a novel approach for the treatment of IBD with iron injection therapy.
Collapse
Affiliation(s)
- Li Liang
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Qingqing Xiong
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Jingxia Kong
- Department of Investment and Insurance, Zhejiang Financial College, Hangzhou, China
| | - Chenying Tian
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Linfeng Miao
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Xiaofeng Zhang
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Huahua Du
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, College of Animal Sciences, Zhejiang University, Hangzhou, China.
| |
Collapse
|
45
|
Zhang C, Zhu H, Jie H, Ding H, Sun H. Arbutin ameliorated ulcerative colitis of mice induced by dextran sodium sulfate (DSS). Bioengineered 2021; 12:11707-11715. [PMID: 34783296 PMCID: PMC8809946 DOI: 10.1080/21655979.2021.2005746] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 11/08/2021] [Accepted: 11/08/2021] [Indexed: 01/01/2023] Open
Abstract
Accumulating evidence has revealed the anti-inflammatory effects of arbutin against various diseases. However, the effects of arbutin are not clarified in ulcerative colitis. This study was intended to investigate the protective effects and mechanisms of arbutin on DSS-induced colitis. Hematoxylin eosin staining was performed to determine the pathological damage of intestinal tissue in mice. Inflammatory factors levels in intestinal tissue were detected by enzyme linked immunosorbent assay (ELISA) assay. TUNEL staining showed the apoptosis levels of cells. Intestinal permeability was analyzed using the application of Fluorescein isothiocyanate Dextran (FD) 4. The levels of Zona Occludens 1 (ZO-1), occluding and claudin-1, and the related proteins in MAPK/ELK1 pathway were analyzed by Western blot. DSS promotes pathological injury, the levels of pro-inflammatory factors containing tumor necrosis factor alpha (TNF-α), Interleukin- 6 (IL-6) and myeloperoxidase (MPO), and cell apoptosis in the mouse colon. Additionally, intestinal permeability was increased and the levels of tight function-related proteins were increased following DSS induction. Its effects could be greatly improved by arbutin. Arbutin exerted effects by eliciting anti-inflammatory effects and maintaining normal intestinal mucosal barrier function, the action mechanism of which could be associated with MAPK/ELK1 pathway.
Collapse
Affiliation(s)
- Chuan Zhang
- Department of Gastroenterology, Suzhou Traditional Chinese Medicine Hospital Affiliated College of Nanjing University of Chinese Medicine, Suzhou, Jiangsu, China
| | - Huiping Zhu
- Department of Gastroenterology, Suzhou Traditional Chinese Medicine Hospital Affiliated College of Nanjing University of Chinese Medicine, Suzhou, Jiangsu, China
| | - Hui Jie
- Department of Gastroenterology, Suzhou Traditional Chinese Medicine Hospital Affiliated College of Nanjing University of Chinese Medicine, Suzhou, Jiangsu, China
| | - Hengyue Ding
- Department of Gastroenterology, Suzhou Traditional Chinese Medicine Hospital Affiliated College of Nanjing University of Chinese Medicine, Suzhou, Jiangsu, China
| | - Hongwen Sun
- Department of Gastroenterology, Suzhou Traditional Chinese Medicine Hospital Affiliated College of Nanjing University of Chinese Medicine, Suzhou, Jiangsu, China
| |
Collapse
|
46
|
Zhang M, Yang D, Yu H, Li Q. MicroRNA-497 inhibits inflammation in DSS-induced IBD model mice and lipopolysaccharide-induced RAW264.7 cells via Wnt/β-catenin pathway. Int Immunopharmacol 2021; 101:108318. [PMID: 34775365 DOI: 10.1016/j.intimp.2021.108318] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/14/2021] [Accepted: 10/25/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS MicroRNA (miR)-497 is downregulated in several inflammatory diseases, excluding inflammatory bowel disease (IBD). The aim of this study is to evaluate whether miR-497 inhibits gut inflammation both in vivo and in vitro. METHODS The 3% dextran sulphate sodium (DSS) was used to induce experimental colitis, while 1 μg/ml lipopolysaccharide (LPS) was for RAW264.7 cell damage.Colitis severity was evaluated by disease activity index (DAI), colon length, histopathologic injury, etc. The nuclear transcription factor NF-κB activity in colon tissues was also estimated by western blot. Then, the quantitative real-time polymerase chain reaction (qRT-PCR) was performed to evaluate the expression levels of miR-497, pro-inflammatory cytokines and chemokines in colon tissues and RAW264.7 cells. Furthermore, the activity of Wnt/β-catenin pathway was determined by western blot and TOP/FOP-flash reporter assays. RESULTS The level of miR-497 was reduced in inflamed mucosa from IBD patients, mice with colitis and LPS-treated RAW264.7 cells. miR-497 knockout (miR-497 KO) mice were more susceptible to DSS-induced colitis, with increased inflammatory response, compared with control mice. Furthermore, the overexpression of miR-497 reduced the release of pro-inflammatory cytokines and chemokines in LPS-treated RAW264.7 cells. Finally, we found that miR-497 inhibited inflammation through Wnt/β-catenin pathway both in vitro and in vivo. CONCLUSION Our data indicate that miR-497 inhibits inflammation in DSS-induced IBD model mice and LPS-induced RAW264.7 cells by inhibiting the activation of NF-κB pathway and the release of cytokines, indicating that miR-497 plays a key role in the progression of IBD. Thus, therapeutic regulation of miR-497 expression may be beneficial for the treatment of IBD.
Collapse
Affiliation(s)
- Mengjiao Zhang
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan, China; Hubei Provincial Clinical Research Center for Digestive Disease Minimally Invasive Incision, Renmin Hospital of Wuhan University, Wuhan, China
| | - Dongmei Yang
- Department of Medical Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Honggang Yu
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan, China; Hubei Provincial Clinical Research Center for Digestive Disease Minimally Invasive Incision, Renmin Hospital of Wuhan University, Wuhan, China.
| | - Qing Li
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan, China; Hubei Provincial Clinical Research Center for Digestive Disease Minimally Invasive Incision, Renmin Hospital of Wuhan University, Wuhan, China
| |
Collapse
|
47
|
Gao H, Song RJ, Jiang H, Zhang W, Han SF. Oat fiber supplementation alleviates intestinal inflammation and ameliorates intestinal mucosal barrier via acting on gut microbiota-derived metabolites in LDLR -/- mice. Nutrition 2021; 95:111558. [PMID: 34998028 DOI: 10.1016/j.nut.2021.111558] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 09/26/2021] [Accepted: 11/22/2021] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Gut microbiota-derived metabolites are involved in intestinal inflammation, which can affect the development of atherosclerotic plaques. Previous studies have shown that oat fiber can delay the progression of atherosclerosis via improving lipid metabolism. The aim of this study was to evaluate how oat fiber acted on gut microbiota-derived metabolites, inhibited intestinal inflammation, and protected the intestinal mucosal barrier. METHODS Male low-density lipoprotein receptor knock-out (LDLR-/-) mice were fed a high-fat/cholesterol diet with or without oat fiber for 14 wk. Histopathology of the aorta was detected by Oil Red O staining, and the small intestine mucosal pathology was measured through hematoxylin and eosin staining. Non-targeted metabolomics of feces was performed using liquid chromatography-mass spectrometry. Western blot method was used to assess the relative levels of the proteins involved in the toll-like receptor (TLR)4 signal pathway and intestinal mucosal barrier in interest tissues. RESULTS Pathologically, oat fiber reversed the increment of the atherosclerotic lesion and ameliorated intestinal mucosal barrier in LDLR-/- mice. Oat fiber regulated the levels of gut microbiota-derived metabolites along with a decrease in isobutyrylcarnitine, valerylcarnitine, 1-methylguanosine, and 2-methylguanosine, and an increase in l-tyrosine and niacinamide. Notably, oat fiber blocked the TLR4 signal pathway and decreased the expression of nuclear factor-κB p65 in both the aorta and gut tissues. Also, oat fiber raised the expression of tight junction proteins including ZO-1 and occludin. CONCLUSION Taken together, the present study revealed that oat fiber feeding effectively attenuated the development of atherosclerosis, at least partly via affecting gut microbiota-derived metabolites, inhibiting the intestinal inflammatory response, and maintaining the integrity of the intestinal mucosal barrier.
Collapse
Affiliation(s)
- Hui Gao
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, China
| | - Rui-Juan Song
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, China
| | - Hui Jiang
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, China
| | - Weiguo Zhang
- Independent scientist, Irving, Texas,United States
| | - Shu-Fen Han
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Disease, School of Public Health, Soochow University, Suzhou, China.
| |
Collapse
|
48
|
Wang Y, Zhang J, Xu L, Ma J, Lu M, Ma J, Liu Z, Wang F, Tang X. Modified Gegen Qinlian Decoction Regulates Treg/Th17 Balance to Ameliorate DSS-Induced Acute Experimental Colitis in Mice by Altering the Gut Microbiota. Front Pharmacol 2021; 12:756978. [PMID: 34803700 PMCID: PMC8601377 DOI: 10.3389/fphar.2021.756978] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/20/2021] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD) is characterized by chronic pathology associated with extensive intestinal microbial dysregulation and intestinal inflammation. Thus, efforts are underway to manipulate the gut microbiome to improve inflammatory pathology. Gegen Qinlian decoction (GQD), a traditional Chinese medicine prescription, has been widely utilized for treating diarrhea and ulcerative colitis (UC) for thousands of years. However, the underlying mechanism of its efficacy and whether its protective effect against colitis is mediated by the gut microbiota are poorly understood. In the present study, our data demonstrated that modified GQD (MGQD) administration significantly improved the pathological phenotypes and colonic inflammation challenged by DSS in mice, which were specifically manifested as reduced loss of body weight, shortening of colon length, DAI score, histological score and suppressed inflammatory response. 16S rRNA sequencing and targeted metabonomics analysis showed that MQGD altered the diversity and community landscape of the intestinal microbiota and the metabolic profiles. In particular, MQGD significantly boosted the abundance of the intestinal microbiota producing short-chain fatty acids (SCFAs), which are causally associated with promoting the development of Treg cells and suppressing the differentiation of pro-inflammatory Th17 cells. More importantly, transferring fecal microbiota from MGQD-treated or healthy controls exhibited equivalent alleviative effects on colitis mice. However, this protective effect could not be replicated in experiments of mice with depleted intestinal microbes through broad-spectrum antibiotic cocktails (ABX), further supporting the importance of SCFA-producing gut microbiota in the beneficial role of MGQD. In general, MGQD therapy has the potential to remodel the intestinal microbiome and reestablish immune homeostasis to ameliorate DSS-induced colitis.
Collapse
Affiliation(s)
- Yifan Wang
- Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), Beijing, China.,Academy of Integration of Chinese and Western Medicine, Peking University Health Science Center, Beijing, China
| | - Jiaqi Zhang
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Lin Xu
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Jing Ma
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Mengxiong Lu
- Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), Beijing, China.,Academy of Integration of Chinese and Western Medicine, Peking University Health Science Center, Beijing, China
| | - Jinxin Ma
- Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), Beijing, China.,Academy of Integration of Chinese and Western Medicine, Peking University Health Science Center, Beijing, China
| | - Zhihong Liu
- Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), Beijing, China.,Academy of Integration of Chinese and Western Medicine, Peking University Health Science Center, Beijing, China
| | - Fengyun Wang
- Department of Gastroenterology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Xudong Tang
- Department of Gastroenterology, Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan), Beijing, China.,Academy of Integration of Chinese and Western Medicine, Peking University Health Science Center, Beijing, China.,China Academy of Chinese Medical Sciences, Beijing, China
| |
Collapse
|
49
|
Zhang L, Lu W, Lu C, Guo Y, Chen X, Chen J, Xu F, Wan H, Dong H. Beneficial effect of capsaicin via TRPV4/EDH signals on mesenteric arterioles of normal and colitis mice. J Adv Res 2021; 39:291-303. [PMID: 35777913 PMCID: PMC9263647 DOI: 10.1016/j.jare.2021.11.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 01/01/2023] Open
Abstract
Capsaicin induced vasorelaxation of human colonic submucosal arterioles in vitro and in vitro. Capsaicin induced an endothelium-dependent vasorelaxation of human submucosal arterioles. Capsaicin induced an endothelium-dependent vasorelaxation of mouse mesenteric arterioles. Capsaicin induced vasorelaxation minily by TRPV1-mediated endothelial nitric oxide release. Capsaicin induced vasorelaxation mainly by TRPV4/endothelium-dependent hyperpolarization. Capsaicin exerted anti-colitis action in wide-type mice, but not in TRPV4 knock-out mice. Capsaicin rescued the impaired endothelium-dependent vasorelaxation via TRPV4/EDH pathway.
Introduction Although capsaicin has long been used as food additive and medication worldwide, its actions on gastrointestinal tract as its most delivery pathway have not been well addressed. Objectives In the present study, we aimed to study GI actions of capsaicin on mesenteric arterioles in normal and colitis mice and to elucidate the underlying mechanisms. Methods Vasorelaxation of human submucosal arterioles and the mesenteric arterioles from wide-type (WT) mice, TRPV1−/− and TRPV4−/− (KO) mice were measured. The expression and function of TRPV channels in endothelial cells were examined by q-PCR, immunostaining, Ca2+ imaging and membrane potential measurements. Results Capsaicin dose-dependently induced vasorelaxation of human submucosal arterioles and mouse mesenteric arterioles in vitro and in vivo through endothelium-dependent hyperpolarization (EDH), nitric oxide (NO), and prostacyclin (PGI2). Using TRPV1 and TRPV4 KO mice, we found that capsaicin-induced vasorelaxation was predominately through TRPV4/EDH, but marginally through TRPV1/NO/PGI2. Capsaicin induced hyperpolarization through activation of endothelial TRPV4 channels and intermediate-conductance of Ca2+-activated K+ channels to finally stimulate vasorelaxation. Importantly, capsaicin exerted anti-colitis action by rescuing the impaired ACh-induced vasorelaxation in WT colitis mice but not in TRPV4 KO colitis mice. Conclusions Capsaicin increases intestinal mucosal blood perfusion to potentially prevent/treat colitis through a novel TRPV4/EDH-dependent vasorelaxation of submucosal arterioles in health and colitis. This study further supports our previous notion that TRPV4/EDH in mesenteric circulation plays a critical role in the pathogenesis of colitis.
Collapse
|
50
|
Song EM, Joo YH, Choe AR, Park Y, Tae CH, Hong JT, Moon CM, Kim SE, Jung HK, Shim KN, Cho KA, Jo I, Jung SA. Three-dimensional culture method enhances the therapeutic efficacies of tonsil-derived mesenchymal stem cells in murine chronic colitis model. Sci Rep 2021; 11:19589. [PMID: 34599237 PMCID: PMC8486762 DOI: 10.1038/s41598-021-98711-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 09/07/2021] [Indexed: 12/14/2022] Open
Abstract
Tonsil-derived mesenchymal stem cells (TMSCs) showed therapeutic effects on acute and chronic murine colitis models, owing to their immunomodulatory properties; therefore, we evaluated enhanced therapeutic effects of TMSCs on a murine colitis model using three-dimensional (3D) culture method. The expression of angiogenic factors, VEGF, and anti-inflammatory cytokines, IL-10, TSG-6, TGF-β, and IDO-1, was significantly higher in the 3D-TMSC-treated group than in the 2D-TMSC-treated group (P < 0.05). At days 18 and 30 after inducing chronic colitis, disease activity index scores were estimated to be significantly lower in the 3D-TMSC-treated group than in the colitis control (P < 0.001 and P < 0.001, respectively) and 2D-TMSC-treated groups (P = 0.022 and P = 0.004, respectively). Body weight loss was significantly lower in the 3D-TMSC-treated group than in the colitis control (P < 0.001) and 2D-TMSC-treated groups (P = 0.005). Colon length shortening was significantly recovered in the 3D-TMSC-treated group compared to that in the 2D-TMSC-treated group (P = 0.001). Histological scoring index was significantly lower in the 3D-TMSC-treated group than in the 2D-TMSC-treated group (P = 0.002). These results indicate that 3D-cultured TMSCs showed considerably higher therapeutic effects in a chronic murine colitis model than those of 2D-cultured TMSCs via increased anti-inflammatory cytokine expression.
Collapse
Affiliation(s)
- Eun Mi Song
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Yang Hee Joo
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - A Reum Choe
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Yehyun Park
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Chung Hyun Tae
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Ji Teak Hong
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Chang Mo Moon
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Seong-Eun Kim
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Hye-Kyung Jung
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Ki-Nam Shim
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Kyung-Ah Cho
- Department of Microbiology, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Inho Jo
- Department of Molecular Medicine, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Sung-Ae Jung
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, South Korea.
| |
Collapse
|