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Chen W, Xu Z, Jiang J, Chen H, Shi R. Identification of LPCAT1 as a key biomarker for Crohn's disease based on bioinformatics and machine learnings and experimental verification. Gene 2024; 920:148519. [PMID: 38703867 DOI: 10.1016/j.gene.2024.148519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 04/26/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024]
Abstract
Epithelial-mesenchymal transition (EMT) plays a crucial role in regulating inflammatory responses and fibrosis formation. This study aims to explore the molecular mechanisms of EMT-related genes in Crohn's disease (CD) through bioinformatics methods and identify potential key biomarkers. In our research, we identified differentially expressed genes (DEGs) related to EMT based on the GSE52746 dataset and the gene set in the GeneCards database. Key genes were identified through Lasso-cox and Random Forest and validated using the external dataset GSE10616. Immune infiltration analysis showed that Lysophosphatidylcholine acyltransferase 1 (LPCAT1) was positively correlated with Neutrophils and Macrophages M1. The Gene Set Enrichment Analysis (GSEA) results for LPCAT1 showed associations with celladhesionmolecules and ECM receptor interaction. Additionally, a lncRNA-miRNA-mRNA ceRNA network was constructed. Finally, we validated that knocking down LPCAT1 could inhibit the release of inflammatory factors, EMT, and the elevation of fibrosis indices as well as the activation of NF-κB signaling pathway in LPS-induced HT-29 cells. LPCAT1 plays an important role in the occurrence and development of CD and may become a new biomarker.
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Affiliation(s)
- Wei Chen
- Department of Gastroenterology, Zhongda Hospital, Southeast University, Nanjing, 210009, China
| | - Zeyan Xu
- Department of Gastroenterology, Zhongda Hospital, Southeast University, Nanjing, 210009, China
| | - Jingjing Jiang
- Department of Gastroenterology, Zhongda Hospital, Southeast University, Nanjing, 210009, China
| | - Hong Chen
- Department of Gastroenterology, Zhongda Hospital, Southeast University, Nanjing, 210009, China.
| | - Ruihua Shi
- Department of Gastroenterology, Zhongda Hospital, Southeast University, Nanjing, 210009, China.
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2
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Li O, Li X, He J. Knockdown of TOP2A suppresses IL-17 signaling pathway and alleviates the progression of ulcerative colitis. Immun Inflamm Dis 2024; 12:e1207. [PMID: 38661103 PMCID: PMC11044219 DOI: 10.1002/iid3.1207] [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: 10/11/2023] [Revised: 02/05/2024] [Accepted: 02/15/2024] [Indexed: 04/26/2024] Open
Abstract
BACKGROUND Ulcerative colitis (UC) is a chronic inflammatory disease of the colonic mucosa, with a gradually increasing incidence. Therefore, it is necessary to actively seek targets for the treatment of UC. METHODS Common differentially expressed genes (DEGs) were screened from two microarray data sets related to UC. Protein-protein interaction network was constructed to find the hub genes. The UC mouse model and cell model were induced by dextran sulfate sodium (DSS). The pathological changes of colon tissue were observed by hematoxylin-eosin staining. Immunohistochemistry and immunofluorescence were performed to detect the expressions of Ki67 and Claudin-1. The performance of mice was observed by disease activity index (DAI). The effect of TOP2A on proliferation, inflammation, oxidative stress, and interleukin-17 (IL-17) signaling pathway in UC model was measured by cell counting kit-8, enzyme-linked immunosorbent assay, and western blot. RESULTS Through bioinformatics analysis, 295 common DEGs were screened, and the hub gene TOP2A was selected. In UC model, there was obvious inflammatory cell infiltration in the colon and less goblet cells, while si-TOP2A lessened it. More Ki67 positive cells and less Claudin-1 positive cells were observed in UC model mice. Furthermore, knockdown of TOP2A increased the body weight and colon length of UC mice, while the DAI was decreased. Through in vivo and in vitro experiments, knockdown of TOP2A also inhibited inflammation and IL-17 signaling pathway, and promoted proliferation in DSS-induced NCM460 cells. CONCLUSION Knockdown of TOP2A alleviated the progression of UC by suppressing inflammation and inhibited IL-17 signaling pathway.
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Affiliation(s)
- Ou Li
- Department of ProctologyZhuJiang Hospital of Southern Medical UniversityGuangzhouGuangdongChina
| | - Xuexiao Li
- Department of ProctologyZhuJiang Hospital of Southern Medical UniversityGuangzhouGuangdongChina
| | - Jianping He
- Department of ProctologyZhuJiang Hospital of Southern Medical UniversityGuangzhouGuangdongChina
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3
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Huang J, Wang M, Jiang X, Liu Y, Ge Y, Zhang C. Bletilla striata carbon dots with alleviating effect of DSS-induced ulcerative colitis. Biochem Biophys Res Commun 2024; 695:149358. [PMID: 38159410 DOI: 10.1016/j.bbrc.2023.149358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 11/25/2023] [Accepted: 12/04/2023] [Indexed: 01/03/2024]
Abstract
Ulcerative colitis (UC) is a type of inflammatory bowel disease (IBD) that significantly affected quality of life for patients. In this study, carbon dots based on Bletilla striata (BS-CDs) were synthesized by hydrothermal method and characterized by optical property analysis. In addition, the study measured the potential effect of BS-CDs on colonic histopathology and inflammation in dextran sulfate sodium (DSS)-induced ulcerative colitis. The results suggested that BS-CDs significantly increased colon length, improved colonic histopathology, and reduced the levels of pro-inflammatory cytokines (TNF-α, IL-1β, and IL-6) in colitis mice. Taken together, BS-CDs alleviate clinical inflammation by blocking pro-inflammatory cytokines which were expected to be a potential agent for the treatment of colitis.
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Affiliation(s)
- Jiwen Huang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Mengqing Wang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Xinjian Jiang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Yuting Liu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Yunbo Ge
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Chaoyan Zhang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China; Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, 201306, China; Laboratory of Quality and Safety Risk Assessment for Aquatic Product on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, 201306, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, Liaoning, 116034, China.
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4
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Zhai Z, Shao L, Lu Z, Yang Y, Wang J, Liu Z, Wang H, Zheng Y, Lu H, Song X, Zhang Y. Characteristics of mucin hypersecretion in different inflammatory patterns based on endotypes of chronic rhinosinusitis. Clin Transl Allergy 2024; 14:e12334. [PMID: 38282195 PMCID: PMC10802810 DOI: 10.1002/clt2.12334] [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: 09/17/2023] [Revised: 12/14/2023] [Accepted: 12/21/2023] [Indexed: 01/30/2024] Open
Abstract
BACKGROUND Chronic rhinosinusitis (CRS) is usually accompanied by mucin hypersecretion that can lead to mucus accumulation and impair nasal mucociliary clearance, thus exacerbating airway inflammation. Abnormal mucin hypersecretion is regulated by different T helper (Th) cytokines, which are associated with different endotype-driven inflammatory responses. Therefore, it is of great significance to understand how these factors regulate mucin hypersecretion to provide precise treatment strategies for different endotypes of CRS. BODY: Thus far, the most common endotypes of CRS are classified as type 1, type 2, or type 3 immune responses based on innate and adaptive cell-mediated effector immunity, and the representative Th cytokines in these immune responses, such as IFN-γ, TNF-α, IL-4, IL-5, IL-13, IL-10, IL-17, and IL-22, play an important regulatory role in mucin secretion. We reviewed all the related literature in the PubMed database to determine the expression of these Th cytokines in CRS and the role they play in the regulation of mucin secretion. CONCLUSION We believe that the main Th cytokines involved in specific endotypes of CRS play a key role in regulating abnormal mucin secretion, which contributes to better understanding of the pathogenesis of CRS and provides therapeutic targets for airway inflammatory diseases associated with mucin hypersecretion.
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Affiliation(s)
- Zhaoxue Zhai
- Second Clinical Medicine CollegeBinzhou Medical UniversityYantaiChina
- Department of OtolaryngologyHead and Neck Surgery, Yantai Yuhuangding HospitalQingdao UniversityYantaiChina
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic DiseasesYantaiChina
| | - Liting Shao
- Department of OtolaryngologyHead and Neck Surgery, Yantai Yuhuangding HospitalQingdao UniversityYantaiChina
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic DiseasesYantaiChina
| | - Zhaoyang Lu
- Second Clinical Medicine CollegeBinzhou Medical UniversityYantaiChina
- Department of OtolaryngologyHead and Neck Surgery, Yantai Yuhuangding HospitalQingdao UniversityYantaiChina
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic DiseasesYantaiChina
| | - Yujuan Yang
- Department of OtolaryngologyHead and Neck Surgery, Yantai Yuhuangding HospitalQingdao UniversityYantaiChina
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic DiseasesYantaiChina
- Yantai Key Laboratory of Otorhinolaryngologic DiseasesYantaiChina
| | - Jianwei Wang
- Department of OtolaryngologyHead and Neck Surgery, Yantai Yuhuangding HospitalQingdao UniversityYantaiChina
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic DiseasesYantaiChina
- Yantai Key Laboratory of Otorhinolaryngologic DiseasesYantaiChina
| | - Zhen Liu
- Department of OtolaryngologyHead and Neck Surgery, Yantai Yuhuangding HospitalQingdao UniversityYantaiChina
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic DiseasesYantaiChina
| | - Huikang Wang
- Department of OtolaryngologyHead and Neck Surgery, Yantai Yuhuangding HospitalQingdao UniversityYantaiChina
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic DiseasesYantaiChina
| | - Yang Zheng
- Department of OtolaryngologyHead and Neck Surgery, Yantai Yuhuangding HospitalQingdao UniversityYantaiChina
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic DiseasesYantaiChina
| | - Haoran Lu
- Department of OtolaryngologyHead and Neck Surgery, Yantai Yuhuangding HospitalQingdao UniversityYantaiChina
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic DiseasesYantaiChina
| | - Xicheng Song
- Department of OtolaryngologyHead and Neck Surgery, Yantai Yuhuangding HospitalQingdao UniversityYantaiChina
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic DiseasesYantaiChina
- Yantai Key Laboratory of Otorhinolaryngologic DiseasesYantaiChina
| | - Yu Zhang
- Department of OtolaryngologyHead and Neck Surgery, Yantai Yuhuangding HospitalQingdao UniversityYantaiChina
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic DiseasesYantaiChina
- Yantai Key Laboratory of Otorhinolaryngologic DiseasesYantaiChina
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Ahmed Najar I, Sharma A, Alshammari A, Albekairi TH, Alharbi M, Ahmad Dar T, Latief Qadrie Z, Kabra A, Newton A, Kumar M. Anti-oxidant and anti-inflammatory potential of different polymer-based mesalamine delayed-release granules in TNBS-induced ulcerative colitis in wistar rats. Saudi Pharm J 2024; 32:101910. [PMID: 38111669 PMCID: PMC10727943 DOI: 10.1016/j.jsps.2023.101910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 12/07/2023] [Indexed: 12/20/2023] Open
Abstract
Ulcerative colitis (UC) is an inflammatory condition of colon characterized by severe damage to the innermost colon tissues. A number of studies described the use of medication delivery systems based on natural polymers like polysaccharides for the purpose of reaching the colon. In this research, polymer-based mesalamine delayed-release granules (DRGs) were tested for their antioxidant and anti-inflammatory efficacy against UC. Chitosan (C), pectin (P), and pectin-chitosan (PC) mesalamine (M) DRGs were prepared and characterized. Data revealed satisfactory compatibility, flow, packing properties, drug release pattern, and delayed drug release by DRGs. Wistar rats were treated with 2,4,6-trinitrobenzenesulfonic acid (TNBS) (100 mg/kg) via rectal administration. Mesalamine and mesalamine DRGs (50 mg/kg) were administered orally separately for 14 days. Biomarkers of oxidative stress, inflammation, hematological tests, colon profile, and histopathology were performed. The findings demonstrated the good efficacy of the polysaccharides in delivering mesalamine to colon. Mesalamine and mesalamine DRGs based on various polymers showed significant antioxidant and anti-inflammatory effects in rats with UC. Mesalamine granules significantly attenuated colon lipid peroxidation, nitrites, myeloperoxidase activity, and interleukin-1β levels, and improved anti-oxidants (GSH, SOD). Data showed upregulation of Nrf2 activity by mesalamine granules with CM-DRGs showing maximum effect. Mesalamine and different polymer-based mesalamine DRGs significantly attenuated TNBS-induced decline in body weight, ulcer severity, and colon damage. CM-DRGs showed the most pronounced ameliorative effect on colon and hematology parameters via anti-oxidant and anti-inflammatory activities. Chitosan can be used as a carrier for oral colon delivery of mesalamine in DRG formulation for enhanced therapeutic efficacy in UC.
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Affiliation(s)
- Imtiyaz Ahmed Najar
- Department of Pharmacology, Lovely Professional University, Jalandhar, Punjab, India
| | - Archana Sharma
- Department of Pharmacology, Swift School of Pharmacy, Rajpura, Punjab, India
| | - Abdulrahman Alshammari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Post Box 2455, Riyadh 11451, Saudi Arabia
| | - Thamer H. Albekairi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Post Box 2455, Riyadh 11451, Saudi Arabia
| | - Metab Alharbi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Post Box 2455, Riyadh 11451, Saudi Arabia
| | - Taief Ahmad Dar
- Department of Endocrinology, Sher-I-Kashmir Institute of Medical Sciences, Srinagar, Jammu & Kashmir, India
| | - Zulfkar Latief Qadrie
- Department of Clinical Pharmacology, Sher-I-Kashmir Institute of Medical Sciences, Srinagar, Jammu & Kashmir, India
| | - Atul Kabra
- University Institute of Pharma Sciences, Chandigarh University, Mohali, Punjab, India
| | - A.M.J Newton
- Lowy Cancer Research Centre, Prince of Wales Clinical School, University of New South Wales, Randwick, Australia
| | - Manish Kumar
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
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Didamoony MA, Soubh AA, Atwa AM, Ahmed LA. Innovative preconditioning strategies for improving the therapeutic efficacy of extracellular vesicles derived from mesenchymal stem cells in gastrointestinal diseases. Inflammopharmacology 2023; 31:2973-2993. [PMID: 37874430 PMCID: PMC10692273 DOI: 10.1007/s10787-023-01350-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 09/20/2023] [Indexed: 10/25/2023]
Abstract
Gastrointestinal (GI) diseases have become a global health issue and an economic burden due to their wide distribution, late prognosis, and the inefficacy of recent available medications. Therefore, it is crucial to search for new strategies for their management. In the recent decades, mesenchymal stem cells (MSCs) therapy has attracted attention as a viable option for treating a myriad of GI disorders such as hepatic fibrosis (HF), ulcerative colitis (UC), acute liver injury (ALI), and non-alcoholic fatty liver disease (NAFLD) due to their regenerative and paracrine properties. Importantly, recent studies have shown that MSC-derived extracellular vesicles (MSC-EVs) are responsible for most of the therapeutic effects of MSCs. In addition, EVs have revealed several benefits over their parent MSCs, such as being less immunogenic, having a lower risk of tumour formation, being able to cross biological barriers, and being easier to store. MSC-EVs exhibited regenerative, anti-oxidant, anti-inflammatory, anti-apoptotic, and anti-fibrotic effects in different experimental models of GI diseases. However, a key issue with their clinical application is the maintenance of their stability and efficacy following in vivo transplantation. Preconditioning of MSC-EVs or their parent cells is one of the novel methods used to improve their effectiveness and stability. Herein, we discuss the application of MSC-EVs in several GI disorders taking into account their mechanism of action. We also summarise the challenges and restrictions that need to be overcome to promote their clinical application in the treatment of various GI diseases as well as the recent developments to improve their effectiveness. A representation of the innovative preconditioning techniques that have been suggested for improving the therapeutic efficacy of MSC-EVs in GI diseases. The pathological conditions in various GI disorders (ALI, UC, HF and NAFLD) create a harsh environment for EVs and their parents, increasing the risk of apoptosis and senescence of MSCs and thereby diminishing MSC-EVs yield and restricting their large-scale applications. Preconditioning with pharmacological agents or biological mediators can improve the therapeutic efficacy of MSC-EVs through their adaption to the lethal environment to which they are subjected. This can result in establishment of a more conducive environment and activation of numerous vital trajectories that act to improve the immunomodulatory, reparative and regenerative activities of the derived EVs, as a part of MSCs paracrine system. ALI, acute liver injury; GI diseases, gastrointestinal diseases; HF, hepatic fibrosis; HSP, heat shock protein; miRNA, microRNA; mRNA, messenger RNA; MSC-EVs, mesenchymal stem cell-derived extracellular vesicles; NAFLD, non-alcoholic fatty liver disease; UC, ulcerative colitis.
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Affiliation(s)
- Manar A Didamoony
- Faculty of Pharmacy, Pharmacology and Toxicology Department, Egyptian Russian University, Cairo, 11829, Egypt.
| | - Ayman A Soubh
- Faculty of Pharmacy, Pharmacology and Toxicology Department, Ahram Canadian University, 4th Industrial Zone, Banks Complex, 6th of October City, Giza, 12451, Egypt
| | - Ahmed M Atwa
- Faculty of Pharmacy, Pharmacology and Toxicology Department, Egyptian Russian University, Cairo, 11829, Egypt
| | - Lamiaa A Ahmed
- Faculty of Pharmacy, Pharmacology and Toxicology Department, Cairo University, Cairo, 11562, Egypt.
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Bejeshk MA, Aminizadeh AH, Rajizadeh MA, Rostamabadi F, Bagheri F, Khaksari M, Azimi M. Ameliorating effects of Acacia arabica and Ocimum basilicum on acetic acid-induced ulcerative colitis model through mitigation of inflammation and oxidative stress. Heliyon 2023; 9:e22355. [PMID: 38058645 PMCID: PMC10696014 DOI: 10.1016/j.heliyon.2023.e22355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/09/2023] [Accepted: 11/09/2023] [Indexed: 12/08/2023] Open
Abstract
Introduction Ulcerative colitis (UC) is a chronic recurrent inflammatory disease of the large intestine and rectum. The disease is characterized by oxidative stress and severe inflammation. Research has shown the anti-oxidative and anti-inflammatory effects induced by consuming the Acacia arabia and Ocimum basilicum. The present study aimed to evaluate the effect of treatment with O. basilicum together with A. arabica on healing, inflammation, and oxidative stress in the course of experimental colitis in rats. Methods A total number of 50 male rats were selected and randomly assigned to five groups of 10 rats each. Colitis was induced in rats by enemas with a 4 % acetic acid solution. Four days after the colitis induction, the rats were orally treated for the next 4 days with saline or a combination of A. arabica and O. basilicum (1000 mg/kg) or sulfasalazine (100 mg/kg). Results Acetic acid-induced colitis increased the colon's macroscopic and histopathological damage scores; increased colon levels of MDA (Malondialdehyde), MPO (Myeloperoxidase), TNF-α (Tissue necrosis factor α), IL6 (Interleukin 6), and IL17 (Interleukin 17); and decreased SOD (Superoxide Dismutase), GPx (Glutathione Peroxidase), and IL10 (Interleukin 10) levels in the treated rats compared with the control group (P < 0.001). Overall, a combination of A. arabica and O. basilicum reduced macroscopic and histopathological damage scores (P < 0.01) of the colon, and MDA, MPO, TNF-α, IL6 (P < 0.001), and IL17 (P < 0.01) levels of the colon. Furthermore, it increased SOD, GPx, and IL10 levels compared to the colitis group (P < 0.01). Conclusion A. arabica and O. basilicum have improving effects on UC by reducing inflammation and oxidative stress.
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Affiliation(s)
- Mohammad Abbas Bejeshk
- Department of Physiology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
- Physiology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Mohammad Amin Rajizadeh
- Physiology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Fahimeh Rostamabadi
- Noncommunicable Diseases Research Center, Bam University of Medical Sciences, Bam, Iran
| | - Fatemeh Bagheri
- Pathology and Stem Cell Research Center, Department of Pathology, Afzalipour School of Medicine, Kerman, Iran
- Legal Medicine Research Center, Legal Medicine Organization, Kerman, Iran
| | - Mohammad Khaksari
- Department of Physiology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
- Physiology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Maryam Azimi
- Gastroenterology and Hepatology Research Center, Kerman University of Medical Sciences, Kerman, Iran
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Albalawi GA, Albalawi MZ, Alsubaie KT, Albalawi AZ, Elewa MAF, Hashem KS, Al-Gayyar MMH. Curative effects of crocin in ulcerative colitis via modulating apoptosis and inflammation. Int Immunopharmacol 2023; 118:110138. [PMID: 37030122 DOI: 10.1016/j.intimp.2023.110138] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 03/25/2023] [Accepted: 03/31/2023] [Indexed: 04/10/2023]
Abstract
Ulcerative colitis (UC) is an inflammatory bowel disease with characteristic inflammation to mucosal cells in rectum and colon leading to lesions in mucosa and submucosa. Moreover, crocin is a carotenoid compound among active constituents of saffron with many pharmacological effects as antioxidant, anti-inflammatory and anticancer activities. Therefore, we aimed to investigate therapeutic effects of crocin against UC through affecting the inflammatory and apoptotic pathways. For induction of UC in rats, intracolonic 2 ml of 4% acetic acid was used. After induction of UC, part of rats was treated with 20 mg/kg crocin. cAMP was measured using ELISA. Moreover, we measured gene and protein expression of B-cell lymphoma 2 (BCL2), BCL2-associated X (BAX), caspase-3/8/9, NF-κB, tumor necrosis factor (TNF)-α and IL-1β/4/6/10. Colon sections were stained with hematoxylin-eosin and Alcian blue or immune-stained with anti-TNF-α antibodies. Microscopic images of colon sections in UC group revealed destruction of intestinal glands associated with infiltration of inflammatory cell and severe hemorrhage. While images stained with Alcian blue showed damaged and almost absent intestinal glands. Crocin treatment ameliorated morphological changes. Finally, crocin significantly reduced expression levels of BAX, caspase-3/8/9, NF-κB, TNF-α, IL-1β and IL-6, associated with increased levels of cAMP and expression of BCL2, IL-4 and IL-10. In conclusion, protective of action of crocin in UC is proved by restoration of normal weight and length of colon as well as improvement of morphological structure of colon cells. The mechanism of action of crocin in UC is indicated by activation of anti-apoptotic and anti-inflammatory effects.
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Affiliation(s)
- Ghadeer A Albalawi
- PharmD Program, Faculty of Pharmacy, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Maha Z Albalawi
- PharmD Program, Faculty of Pharmacy, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Kunuz T Alsubaie
- PharmD Program, Faculty of Pharmacy, University of Tabuk, Tabuk 71491, Saudi Arabia
| | | | - Mohammed A F Elewa
- Biochemistry Department, Faculty of Pharmacy, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
| | - Khalid S Hashem
- Biochemistry Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Mohammed M H Al-Gayyar
- Dept. of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt; Dept. of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tabuk, Tabuk 71491, Saudi Arabia.
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Li M, Wu H, Wang S, Wu S, Han J, Han Y. Development of microparticles for oral administration of Periplaneta americana extract to treat ulcerative colitis. Drug Deliv 2022; 29:2723-2733. [PMID: 35982644 PMCID: PMC9521608 DOI: 10.1080/10717544.2022.2112115] [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] [Indexed: 11/03/2022] Open
Abstract
Ulcerative colitis (UC) is a chronic disease, which can result the inflammation of the rectum, mucosa of the colon, and submucosa. The active component such as polypeptide in Periplaneta americana, which is one of the most common insects in the nature, can be extracted to treat UC. However, the active components in Periplaneta americana extract (PAE) can be degraded in the stomach due to its extreme acidic environment and enzyme. In this study, we developed a pH-dependent drug delivery method using polymer cellulose acetate (Eudragit S100) as a carrier to deliver high concentration PAE to inflamed colon. Both in vitro and in vivo results showed the PAE-Eudragit-S100 could treat UC through delivering active drug components to colon without degradation.
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Affiliation(s)
- Meng Li
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Liao Ning, China
| | - Hao Wu
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Liao Ning, China
| | - Shuang Wang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Liao Ning, China
| | - Shengshun Wu
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Liao Ning, China
| | - Jing Han
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Liao Ning, China
| | - Yang Han
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Liao Ning, China
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Liu C, Zhen D, Du H, Gong G, Wu Y, Ma Q, Quan ZS. Synergistic anti-inflammatory effects of peimine, peiminine, and forsythoside a combination on LPS-induced acute lung injury by inhibition of the IL-17-NF-κB/MAPK pathway activation. JOURNAL OF ETHNOPHARMACOLOGY 2022; 295:115343. [PMID: 35533916 DOI: 10.1016/j.jep.2022.115343] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 04/16/2022] [Accepted: 05/02/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Forsythia suspensa (Thunb.) Vahl and Fritillaria thunbergii Miq are traditional Chinese medicines that exhibit the ability to clear heat and toxic material effects. In China, the combination of these two medicines is widely used to treat mucopurulent sputum and bloody phlegm, arising due to phlegm-heat obstruction in respiratory diseases. However, very limited information is available regarding the combined anti-inflammatory effect of important effective components of Forsythia suspensa (Thunb.) Vahl and Fritillaria thunbergii Miq, namely peimine, peiminine, and forsythoside A. AIM OF THIS STUDY To investigate synergistic anti-inflammatory effects of combined administration of peimine, peiminine, and forsythoside A on LPS-induced acute lung injury compared to combined administration of two compounds or individual administration, and unravel the underlying mechanism. MATERIAL AND METHODS In the present study, male BALB/c mice received an oral dosage of sodium carboxymethylcellulose (CMC-Na) (0.5%, 1 mL/100 g), peimine, peiminine, forsythoside A, peimine + forsythoside A, peiminine + forsythoside A, and peimine + peiminine + forsythoside A (suspended in CMC-Na; 0.5%), once daily for 7 days. Subsequently, intratracheal instillation of LPS was applied to establish acute lung injury model. After 6 h of administration, the mice were sacrificed, and bronchoalveolar lavage fluid (BALF) and lung tissues were collected. These samples were further used to determine lung W/D (wet/dry) weight ratio, total protein (TP) levels, inflammatory cytokines (IL-6, TNF-α, IL-1β, and IL-17), and expression of proteins involved in TLR4/MAPK/NF-κB pathway and IL-17 pathway. Further, tissue sections were subjected to H&E staining to assess the pathological alterations induced by LPS. The expression of IL-6 and TNF-α proteins in lung tissues was also analyzed using immunohistochemical staining. RESULTS A synergistic anti-inflammatory effect of peimine, peiminine, and forsythoside A was observed when administered in combination to LPS-induced acute lung injury. The combined administration of peimine, peiminine, and forsythoside A had a strongly inhibitory effects on the W/D weight ratio, total protein (TP) level and the inflammatory cytokines (TNF-α, IL-6, IL-1β, and IL-17) level in acute lung injury mice, compared to combined administration of two compounds or individual administration. The infiltration of inflammatory cells and thickened bronchoalveolar walls induced by LPS were also ameliorated through the combined administration of peimine, peiminine, and forsythoside A. More importantly, the upregulation of protein related to TLR4/MAPK/NF-κB signaling pathway and the activation of IL-17 were significantly suppressed by pretreatment with each of the three compounds alone, while the effects of individual compounds were synergistically augmented by the combined pretreatment of these three compounds. CONCLUSION The combined administration of peimine, peiminine, and forsythoside A ameliorated inflammatory response in acute lung injury mice induced by LPS in a synergistic manner, the mechanism may be related to the dampening of the TLR4/MAPK/NF-κB signaling pathway and IL-17 activation.
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Affiliation(s)
- Chunyan Liu
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China; Institute of Pharmaceutical Chemistry and Pharmacology, Inner Mongolia Minzu University, Inner Mongolia Autonomous Region, Tongliao, 028000, China; Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System, Tongliao, 028000, Inner Mongolia, PR China.
| | - Dong Zhen
- Institute of Pharmaceutical Chemistry and Pharmacology, Inner Mongolia Minzu University, Inner Mongolia Autonomous Region, Tongliao, 028000, China; Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System, Tongliao, 028000, Inner Mongolia, PR China.
| | - Huanhuan Du
- Institute of Pharmaceutical Chemistry and Pharmacology, Inner Mongolia Minzu University, Inner Mongolia Autonomous Region, Tongliao, 028000, China; Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System, Tongliao, 028000, Inner Mongolia, PR China.
| | - Guohua Gong
- Institute of Pharmaceutical Chemistry and Pharmacology, Inner Mongolia Minzu University, Inner Mongolia Autonomous Region, Tongliao, 028000, China; Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System, Tongliao, 028000, Inner Mongolia, PR China; Affiliated Hospital of Inner Mongolia Minzu University, Tongliao, 028000, Inner Mongolia Autonomous Region, PR China.
| | - Yun Wu
- Affiliated Hospital of Inner Mongolia Minzu University, Tongliao, 028000, Inner Mongolia Autonomous Region, PR China.
| | - Qianqian Ma
- Institute of Pharmaceutical Chemistry and Pharmacology, Inner Mongolia Minzu University, Inner Mongolia Autonomous Region, Tongliao, 028000, China; Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System, Tongliao, 028000, Inner Mongolia, PR China.
| | - Zhe-Shan Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China.
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Chen Y, Miao Z, Sheng X, Li X, Ma J, Xu X, Li H, Kang A. Sesquiterpene lactones-rich fraction from Aucklandia lappa Decne. alleviates dextran sulfate sodium induced ulcerative colitis through co-regulating MAPK and Nrf2/Hmox-1 signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2022; 295:115401. [PMID: 35623504 DOI: 10.1016/j.jep.2022.115401] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/18/2022] [Accepted: 05/21/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Aucklandia lappa Decne. (ALDE) is the general name for Asteraceae plants Yunmuxiang, which has traditionally been proven to have the efficacy in relieving depression by regulating qi, alleviating cold by warming, attenuating pain in stomach and relieving diarrhea in intestines. Therefore, ALDE is always recommended as an herbal remedy for gastrointestinal dysfunction. AIM OF THE STUDY The purpose of this study was to explore the therapeutic potential and mechanism of action of the sesquiterpene lactone-rich fraction (SLRF) of ALDE extracts in vivo and in vitro. MATERIALS AND METHODS An aqueous extract (AE) and SLRF of ALDE were prepared and the contents of the main components were quantified by high performance liquid chromatography (HPLC). The therapeutic effects of the extracts were evaluated in C57BL/6 mice with dextran sulfate sodium (DSS)-induced ulcerative colitis (UC). Body weight, disease activity index (DAI), and colon length were recorded, and histopathological changes in the colon were characterized using hematoxylin and eosin (H&E) staining. The in vitro anti-inflammatory activity and possible mechanisms of the two main sesquiterpene lactones in ALDE (costunolide and dehydrocostus lactone) were studied by quantitative proteomic analysis. Finally, based on bioinformatic analysis, we used polymerase chain reaction (PCR), immunofluorescence, and western blot experiments to verify the anti-inflammatory mechanism of the extracts in C57BL/6 mice. RESULTS The SLRF of ALDE significantly improved the pathological symptoms and inflammatory pathology of UC, whereas the AE had a weak protective effect. In RAW264.7 cells stimulated with lipopolysaccharide (LPS), costunolide and dehydrocostus lactone significantly reduced the mRNA levels of interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-α, suggesting that these two sesquiterpene lactones had strong anti-inflammatory activity. Quantitative proteomics results indicated that the anti-inflammatory mechanism of these lactones was associated with the NF-κB/MAPK and Nrf2-Hmox-1 pathways. These results were further validated in SLRF-treated mice. CONCLUSION This study confirmed that the SLRF of ALDE exerted protective activity against UC by regulating the Nrf2-Hmox-1, NF-κB, and MAPK pathways.
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Affiliation(s)
- Yan Chen
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210046, China.
| | - Zhiwei Miao
- Department of Gastroenterology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China.
| | - Xianjie Sheng
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210046, China.
| | - Xinru Li
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210046, China.
| | - Jiayi Ma
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210046, China.
| | - Xiaomei Xu
- Department of Gastroenterology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China.
| | - Hui Li
- Department of Gastroenterology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China.
| | - An Kang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210046, China; Jiangsu Province Key Laboratory of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China.
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Ni L, Jing S, Zhu L, Yang X, Wang X, Tu S. The Immune Change of the Lung and Bowel in an Ulcerative Colitis Rat Model and the Protective Effect of Sodium Houttuyfonate Combined With Matrine. Front Immunol 2022; 13:888918. [PMID: 35844499 PMCID: PMC9280623 DOI: 10.3389/fimmu.2022.888918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/30/2022] [Indexed: 01/19/2023] Open
Abstract
Objective To explore the immune change of lung injury of Ulcerative colitis (UC) by observing the changes of inherent immunity and adaptive immunity of the lung and bowel in UC rat models after the treatment of Sodium Houttuyfonate combined with Matrine. Method UC rat models were established with the mucous membrane of colon allergize combined with TNBS-alcohol enteroclysis for 1 week and 5 weeks. 1-week experimental rats were divided into normal group and model group, 5/each group. 5-weeks experimental rats were divided into normal group, model group, Sodium Houttuyfonate (2.9mg/ml) combined with Matrine (1.47mg/ml), and positive control sulfasalazine (10mg/ml), 5/each group. All rats were administered by gavage for 5 weeks. The histopathological and fibrotic changes in the lung and bowel were observed, and the expressions of Tumor Necrosis Factor (TNF)- α, interleukin (IL)-8 in the lung, bowel, and serum were detected by radio-immunity and immunohistochemistry, and the mRNA expressions of Toll-like receptor (TLR)-4, nuclear factor kappa (NF-κB), Macrophage migration inhibitory factor (MIF), Mucosal addressing cell adhesion molecule-1 (MadCAM1) and Pulmonary surfactant protein-A (SP-A) in the lung and bowel were detected by Real time-PCR. Result Compared with the normal group, the model rats had significant histopathological and fibrotic changes both in the lung and bowel, and all treatment groups were improved. After treatment, TLR4, IL-8, MIF, and TNF-α in the lung decreased (P<0.05); NF-KB, IL-8, and MIF in the bowel increased (P<0.05); MadCAM1 both in lung and bowel decreased (P<0.05); SP-A decreased in bowel and increased in the lung (P<0.05). Conclusion The cause of lung injury in this model was found to be related to inherent immunity and adaptive immunity, while the cause of bowel injury in this model was found to be mainly related to adaptive immunity. Sodium Houttuyfonate combined with Matrine could improve bowel and lung injury.
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Affiliation(s)
- Lulu Ni
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Shan Jing
- Department of Internal Medicine of Traditional Chinese Medicine (TCM), Nantong Hospital, Nantong, China
| | - Li Zhu
- Department of Internal Medicine of Traditional Chinese Medicine (TCM), Dong- zhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xue Yang
- Department of Internal Medicine of Traditional Chinese Medicine (TCM), Third Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Xinyue Wang
- Department of Internal Medicine of Traditional Chinese Medicine (TCM), Dong- zhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Su Tu
- Department of Emergency, the Affiliated Wuxi NO 2 People’s Hospital of Nanjing Medical University, Wuxi, China
- *Correspondence: Su Tu,
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Sun J, Xue P, Liu J, Huang L, Lin G, Ran K, Yang J, Lu C, Zhao YZ, Xu HL. Self-Cross-Linked Hydrogel of Cysteamine-Grafted γ-Polyglutamic Acid Stabilized Tripeptide KPV for Alleviating TNBS-Induced Ulcerative Colitis in Rats. ACS Biomater Sci Eng 2021; 7:4859-4869. [PMID: 34547895 DOI: 10.1021/acsbiomaterials.1c00792] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
KPV (Lys-Pro-Val), which is a tripeptide derived from α-MSH (α-melanocyte-stimulating hormone), has an anti-inflammatory effect on colitis. However, KPV solution is very unstable when rectally administered, compromising its therapeutic efficacy. Herein, cysteamine-grafted γ-polyglutamic acid (SH-PGA) was synthesized by conjugating cysteamine with the carboxyl groups of γ-PGA. The synthesized SH-PGA has the thiol grafting amount of 4.5 ± 0.3 mmol/g. Without the use of the cross-linker, the SH-PGA hydrogel with 4% of the polymer was formed by self-cross-linking of thiol groups. Moreover, the formation of the SH-PGA hydrogel was not affected by KPV. The KPV/SH-PGA hydrogel presented higher elastic modulus (G') than the corresponding viscous modulus (G″) at 0.01-10 Hz, exhibiting good mechanical stability. The KPV/SH-PGA hydrogel presented a shear-thinning behavior, which was helpful for rectal administration. Only 30% of KPV was released from the KPV/SH-PGA hydrogel within 20 min, followed by a sustained-release behavior. Importantly, the stability of KPV in the SH-PGA hydrogel was obviously enhanced, which was presented by detecting its anti-inflammatory activity and promoting cell migration potential after 2 h of exposure to 37 °C. The enhanced therapeutic effect of the KPV/SH-PGA hydrogel on colitis was confirmed on 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced ulcerative colitis rats. The colitis symptoms including body weight loss and the disease activity index score were obviously attenuated by rectally administering the KPV/SH-PGA hydrogel. Besides, the KPV/SH-PGA hydrogel treatment prevented the colon shortening of TNBS-infused rats and decreased the colonic myeloperoxidase level. The morphology of the colon including the epithelial barrier, crypt, and intact goblet cells was recovered after KPV/SH-PGA hydrogel treatment. Besides, the KPV/SH-PGA hydrogel decreased the expression of proinflammatory cytokines such as tumor necrosis factor α and interleukin 6. Collectively, the KPV/SH-PGA hydrogel may provide a promising strategy for the treatment of ulcerative colitis.
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Affiliation(s)
- Jie Sun
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Pengpeng Xue
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Jiayi Liu
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Lantian Huang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Gaolong Lin
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Kunjie Ran
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Jiaojiao Yang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Cuitao Lu
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Ying-Zheng Zhao
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - He-Lin Xu
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
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Protective effect of mirtazapine against acetic acid-induced ulcerative colitis in rats: Role of NLRP3 inflammasome pathway. Int Immunopharmacol 2021; 101:108174. [PMID: 34601335 DOI: 10.1016/j.intimp.2021.108174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 09/11/2021] [Accepted: 09/16/2021] [Indexed: 01/06/2023]
Abstract
AIMS Ulcerative colitis (UC) is an inflammatory bowel disease (IBD) that causes long-lasting inflammation on the innermost lining of the colon and rectum. Mirtazapine (MRT) is a well-known antidepressant that was proven to have anti-inflammatory activity; however, to date, its role has not been investigated in UC. The current study aimed to investigate the role and mechanism of MRT in UC. MAIN METHOD Acetic acid (AA) was used for UC induction, and sulfasalazine (SLZ) was used as a positive control. Rats were divided into five equal groups; as follows; normal control, AA, SLZ (received SLZ in a dose of 250 mg/kg for 14 days), MRT10 (received MRT in a dose of 10 mg/kg/day for 14 days), and MRT30 (received MRT in a dose of 30 mg/kg/day for 14 days) groups. Macroscopic and microscopic examinations together with oxidative stress parameters evaluation were done. NOD-like receptors-3 (NLRP3), caspase-1, TNF-α, and nuclear factor kappa B (NF-κB) expression together with interleukin (IL)-1β and IL-18 levels were examined. KEY FINDING MRT, in a dose-dependent manner, prevented the macroscopic and microscopic colonic damage and corrected the oxidative stress induced by AA. Moreover, MRT decreased the colonic tissue NLRP3 inflammasome, caspase-1, NF-κB, TNF-α expressions, IL-1β, and IL-18 levels that were elevated in colonic tissue by the AA. SIGNIFICANCE MRT has a dose-dependent protective effect against UC that was mediated mainly by its anti-inflammatory activity with modulation of NLRP3/caspase-1 inflammatory pathway.
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