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Li X, Ji LJ, Feng KD, Huang H, Liang MR, Cheng SJ, Meng XD. Emerging role of exosomes in ulcerative colitis: Targeting NOD-like receptor family pyrin domain containing 3 inflammasome. World J Gastroenterol 2024; 30:527-541. [PMID: 38463022 PMCID: PMC10921143 DOI: 10.3748/wjg.v30.i6.527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 11/21/2023] [Accepted: 01/09/2024] [Indexed: 02/05/2024] Open
Abstract
Ulcerative colitis (UC) is a chronic recurrent inflammatory bowel disease. Despite ongoing advances in our understanding of UC, its pathogenesis is yet unelucidated, underscoring the urgent need for novel treatment strategies for patients with UC. Exosomes are nanoscale membrane particles that mediate intercellular communication by carrying various bioactive molecules, such as proteins, RNAs, DNA, and metabolites. The NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome is a cytosolic tripartite protein complex whose activation induces the maturation and secretion of proinflammatory cytokines interleukin-1β (IL-1β) and IL-18, triggering the inflammatory response to a pathogenic agent or injury. Growing evidence suggests that exosomes are new modulators of the NLRP3 inflammasome, with vital roles in the pathological process of UC. Here, recent evidence is reviewed on the role of exosomes and NLRP3 inflammasome in UC. First, the dual role of exosomes on NLRP3 inflammasome and the effect of NLRP3 inflammasome on exosome secretion are summarized. Finally, an outlook on the directions of exosome-NLRP3 inflammasome crosstalk research in the context of UC is proposed and areas of further research on this topic are highlighted.
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Affiliation(s)
- Xin Li
- School of Basic Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou Province, China
| | - Li-Jiang Ji
- Department of Anorectal Surgery, Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu 215500, Jiangsu Province, China
| | - Kai-Di Feng
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Hua Huang
- Department of Anorectal Surgery, Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu 215500, Jiangsu Province, China
| | - Mei-Rou Liang
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Shi-Jin Cheng
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Xiu-Dong Meng
- School of Basic Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou Province, China
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Xiao S, Yan Y, Shao M, Zhou X, Niu Z, Wu Y, Li Y, Cui Y, Long Y, Du Q. Kuijieling decoction regulates the Treg/Th17 cell balance in ulcerative colitis through the RA/RARα signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:116909. [PMID: 37451490 DOI: 10.1016/j.jep.2023.116909] [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: 05/11/2023] [Revised: 07/09/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ulcerative colitis (UC) is an idiopathic intestinal disease characterized by chronic inflammation with unknown etiology. Kuijieling decoction is a traditional Chinese Medicine with unique therapeutic efficacy for UC. AIM OF THE STUDY To validate the effects of Kuijieling decoction on vitamin A metabolism and retinoic acid (RA) production, along with evaluation of its immunomodulatory activity, and further clarify the upstream mechanisms underlying Treg/Th17 regulation that contribute to therapeutic effects against UC. MATERIALS AND METHODS Network pharmacology and molecular docking analyses were employed to predict the potential anti-UC targets of Kuijieling and associated pathways. A rat model of UC was generated by treatment with trinitrobenzene sulfonic acid (TNBS) to induce inflammation. T lymphocytes were induced to differentiate into Th17 via combined stimulation with the cytokines TGF-β1, IL-6 and IL-23. Expression levels of RA/RARα-related factors (RARα, CRABPII, Smad3, IL-6R and IL-23R) and Treg/Th17 cell-related factors (Foxp3, RORγt) were measured via western blot (WB), quantitative real-time PCR (RT-qPCR), and immunohistochemistry analyses. Components of the vitamin A metabolic pathway (vitamin A, retinol, retinoic acid) and Treg/Th17 cell-related cytokines (IL-10, IL-17, IL-21) were evaluated using ELISA. Flow cytometry was performed to determine the percentages of Treg and Th17 cells. RESULTS The action targets of Kuijieling were significantly associated with T cell activation, Th17 cell differentiation and the immune response. IL-2, IL-6, STAT3 and RARα displayed strong binding affinities with the main components of Kuijieling, suggesting an important role in its therapeutic efficacy. Kuijieling promoted vitamin A metabolism and RA/RARα signaling in UC rats and T lymphocytes. Moreover, Kuijieling effectively regulated the Treg/Th17 cell balance in UC rats and T lymphocytes and relieved inflammation. The protective effect of Kuijieling was weakened after inhibition of the RA/RARα signaling pathway. CONCLUSIONS Kuijieling promotes vitamin A metabolism and RA synthesis, enhances interactions between RA, intracellular binding protein CRABPII and nuclear receptor RARα, and upregulates Smad3 and Foxp3, thus promoting Treg differentiation. Simultaneously, Kuijieling inhibited expression of IL-6R and IL-23R genes and production of RORγt, leading to suppression of Th17 differentiation, and ultimately, reduction of the Th17/Treg cell ratio.
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Affiliation(s)
- Suting Xiao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Yizhen Yan
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Mingyin Shao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Xuan Zhou
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Zhenyu Niu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Yanli Wu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Yanwu Li
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Yong Cui
- School of Medical Device, Shenyang Pharmaceutical University, Shenyang, China.
| | - Yu Long
- School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China.
| | - Qun Du
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China.
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Wang S, Wu P, Fan Z, He X, Liu J, Li M, Chen F. Dandelion polysaccharide treatment protects against dextran sodium sulfate-induced colitis by suppressing NF-κB/NLRP3 inflammasome-mediated inflammation and activating Nrf2 in mouse colon. Food Sci Nutr 2023; 11:7271-7282. [PMID: 37970386 PMCID: PMC10630811 DOI: 10.1002/fsn3.3653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 07/26/2023] [Accepted: 08/13/2023] [Indexed: 11/17/2023] Open
Abstract
The treatment of ulcerative colitis (UC) is still an intractable medical problem. Polysaccharides are promising candidates for the treatment of UC and have received widespread attention in recent years. The objective of this study was to explore the protective effect and underlying mechanism of dandelion polysaccharide (DP) on dextran sulfate sodium (DSS)-induced colitis in mice. Our results showed that oral administration of DP could dramatically alleviate colonic lesions, as evidenced by reduced DAI scores, shortening of colon length, and ameliorating pathologic abnormalities in colons. Additionally, the expressions of pro-inflammatory factors (TNF-α, IL-1β, and IL-6) and the infiltration of inflammation-regulation cells, marked by myeloperoxidase and F4/80, were also inhibited after DP treatment. Moreover, DP treatment also markedly suppressed the nuclear translocation of NF-κB-p65 and the activation of the NLRP3 inflammasome. Furthermore, DP also activated the Nrf2/HO-1 pathway and reduced the oxidative stress induced by DSS. Overall, these results suggest that DP could be a promising novel therapeutic approach for the treatment of UC.
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Affiliation(s)
- Shuo Wang
- School of Pharmaceutical SciencesLiaocheng UniversityLiaochengShandongChina
| | - Ping Wu
- School of Pharmaceutical SciencesLiaocheng UniversityLiaochengShandongChina
| | - Zongqiang Fan
- School of Pharmaceutical SciencesLiaocheng UniversityLiaochengShandongChina
| | - Xingrui He
- School of PharmacyHangzhou Normal UniversityHangzhouZhejiangChina
| | - Jinqian Liu
- School of Pharmaceutical SciencesLiaocheng UniversityLiaochengShandongChina
| | - Ming Li
- Shandong Academy of Occupational Health and Occupational MedicineShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Fang Chen
- School of Pharmaceutical SciencesLiaocheng UniversityLiaochengShandongChina
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Xue JC, Yuan S, Hou XT, Meng H, Liu BH, Cheng WW, Zhao M, Li HB, Guo XF, Di C, Li MJ, Zhang QG. Natural products modulate NLRP3 in ulcerative colitis. Front Pharmacol 2023; 14:1265825. [PMID: 37849728 PMCID: PMC10577194 DOI: 10.3389/fphar.2023.1265825] [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: 07/23/2023] [Accepted: 09/21/2023] [Indexed: 10/19/2023] Open
Abstract
Ulcerative colitis (UC) is a clinically common, progressive, devastating, chronic inflammatory disease of the intestine that is recurrent and difficult to treat. Nod-like receptor protein 3 (NLRP3) is a protein complex composed of multiple proteins whose formation activates cysteine aspartate protease-1 (caspase-1) to induce the maturation and secretion of inflammatory mediators such as interleukin (IL)-1β and IL-18, promoting the development of inflammatory responses. Recent studies have shown that NLRP3 is associated with UC susceptibility, and that it maintains a stable intestinal environment by responding to a wide range of pathogenic microorganisms. The mainstay of treatment for UC is to control inflammation and relieve symptoms. Despite a certain curative effect, there are problems such as easy recurrence after drug withdrawal and many side effects associated with long-term medication. NLRP3 serves as a core link in the inflammatory response. If the relationship between NLRP3 and gut microbes and inflammation-associated factors can be analyzed concerning its related inflammatory signaling pathways, its expression status as well as specific mechanism in the course of IBD can be elucidated and further considered for clinical diagnosis and treatment of IBD, it is expected that the development of lead compounds targeting the NLRP3 inflammasome can be developed for the treatment of IBD. Research into the prevention and treatment of UC, which has become a hotbed of research in recent years, has shown that natural products are rich in therapeutic means, and multi-targets, with fewer adverse effects. Natural products have shown promise in treating UC in numerous basic and clinical trials over the past few years. This paper describes the regulatory role of the NLRP3 inflammasome in UC and the mechanism of recent natural products targeting NLRP3 against UC, which provides a reference for the clinical treatment of this disease.
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Affiliation(s)
- Jia-Chen Xue
- Department of Nuclear Medicine, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, China
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China
- Department of Immunology and Pathogenic Biology, Yanbian University College of Basic Medicine, Yanji, Jilin, China
| | - Shuo Yuan
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, China
| | - Xiao-Ting Hou
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China
| | - Huan Meng
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China
| | - Bao-Hong Liu
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China
| | - Wen-Wen Cheng
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China
| | - Ming Zhao
- Department of Nuclear Medicine, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, China
| | - Hong-Ben Li
- Department of Nuclear Medicine, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, China
| | - Xue-Fen Guo
- Department of Nuclear Medicine, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, China
| | - Chang Di
- Department of Nuclear Medicine, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, China
| | - Min-Jie Li
- Department of Nuclear Medicine, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, China
| | - Qing-Gao Zhang
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China
- Department of Immunology and Pathogenic Biology, Yanbian University College of Basic Medicine, Yanji, Jilin, China
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Zhou F, Zhang GD, Tan Y, Hu SA, Tang Q, Pei G. NOD-like receptors mediate homeostatic intestinal epithelial barrier function: promising therapeutic targets for inflammatory bowel disease. Therap Adv Gastroenterol 2023; 16:17562848231176889. [PMID: 37701792 PMCID: PMC10493068 DOI: 10.1177/17562848231176889] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 05/01/2023] [Indexed: 09/14/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic gastrointestinal inflammatory disease that involves host genetics, the microbiome, and inflammatory responses. The current consensus is that the disruption of the intestinal mucosal barrier is the core pathogenesis of IBD, including intestinal microbial factors, abnormal immune responses, and impaired intestinal mucosal barrier. Cumulative data show that nucleotide-binding and oligomerization domain (NOD)-like receptors (NLRs) are dominant mediators in maintaining the homeostasis of the intestinal mucosal barrier, which play critical roles in sensing the commensal microbiota, maintaining homeostasis, and regulating intestinal inflammation. Blocking NLRs inflammasome activation by botanicals may be a promising way to prevent IBD progression. In this review, we systematically introduce the multiple roles of NLRs in regulating intestinal mucosal barrier homeostasis and focus on summarizing the activities and potential mechanisms of natural products against IBD. Aiming to propose new directions on the pathogenesis and precise treatment of IBD.
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Affiliation(s)
- Feng Zhou
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, China
| | | | - Yang Tan
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- Science and Technology Innovation Center/State Key Laboratory Breeding Base of Chinese Medicine Powder and Innovative Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Shi An Hu
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- Hunan Provincial Key Laboratory of TCM Prevention and Treatment of Depression Diseases, Changsha, China
| | - Qun Tang
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China
- Medical School, Hunan University of Chinese Medicine, Changsha, China
| | - Gang Pei
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, China
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Zhou Y, Yang X, Liu J, Yang M, Ye C, Zhu L. Carboxyamidotriazole alleviates pannus formation and cartilage erosion in rats with adjuvant arthritis. Heliyon 2023; 9:e20105. [PMID: 37809969 PMCID: PMC10559848 DOI: 10.1016/j.heliyon.2023.e20105] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 08/22/2023] [Accepted: 09/12/2023] [Indexed: 10/10/2023] Open
Abstract
Carboxyamidotriazole (CAI) was initially considered a non-cytotoxic anticancer agent. However, recently, pronounced anti-inflammatory properties of CAI have been reported. Rheumatoid arthritis (RA) is an autoimmune inflammatory disease characterized by aberrant activation of signaling pathways. Therefore, this study explored the therapeutic effects and potential mechanism of action of CAI on RA in the adjuvant arthritis (AA) model. The results showed that CAI reduced the severity of arthritis in AA rats as demonstrated by inhibited hind paw swelling, reduced body weight, and decreased infiltration of joint pathological inflammatory cells. Importantly, pathological scoring of new blood vessels and immunohistochemical assays revealed that CAI inhibited pannus formation. CAI decreased the expression of pro-angiogenic growth factors, such as vascular epidermal growth factor, basic fibroblast growth factor, and metalloproteinases (MMPs), namely, MMP-1 and MMP-3 in the synovium of AA rats. Furthermore, CAI significantly reduced the increased levels of phosphorylated p38, c-Jun N-terminal kinase (JNK)1/2, and extracellular signal-regulated kinase (ERK)1/2 proteins in AA rats. In addition, the proliferation of fibroblast-like synoviocytes (FLS) was downregulated by CAI both in vivo and in vitro. In conclusion, this investigation illustrates the therapeutic effect of CAI on synovitis and erosion of articular cartilage in RA. Furthermore, the mechanism might involve inhibition of aberrantly activated mitogen-activated protein kinase signaling, as well as a decrease in pro-angiogenic factors, MMP expression, and FLS proliferation.
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Affiliation(s)
- Yongting Zhou
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, PR China
| | - Xiyue Yang
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, PR China
| | - Jingwen Liu
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, PR China
| | - Mei Yang
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, PR China
| | - Caiying Ye
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, PR China
| | - Lei Zhu
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, PR China
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Huang J, Dai M, He M, Bu W, Cao L, Jing J, Cao R, Zhang H, Men K. Treatment of Ulcerative Colitis by Cationic Liposome Delivered NLRP3 siRNA. Int J Nanomedicine 2023; 18:4647-4662. [PMID: 37605735 PMCID: PMC10440093 DOI: 10.2147/ijn.s413149] [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: 04/06/2023] [Accepted: 08/09/2023] [Indexed: 08/23/2023] Open
Abstract
Purpose The abnormal activation of NLRP3 inflammasome is related to the occurrence and development of ulcerative colitis (UC). However, the ideal drug and delivery system remain important factors limiting the targeting of NLRP3 inflammasome in UC therapy. Gene therapy by delivering siRNA is effective in treating various diseases. Therefore, delivering siNLRP3 using an ideal vector for UC treatment is necessary. Materials and Methods Nanoparticles delivering siNLRP3 were developed based on cationic liposome (CLP/siNLRP3). Their ability to inhibit NLRP3 inflammasome activation was monitored using Western blot (WB) and Enzyme-linked Immunosorbent Assay (ELISA). The ASC oligomerization in LPS-primed peritoneal macrophages (PMs) was detected by WB and immunofluorescence. Moreover, we assessed the role of CLP/siNLRP3 on dextran sodium sulfate (DSS)-induced UC by examining NLRP3 levels, pro-inflammatory cytokines expression, and disease-associated index (DAI). Flow cytometry (FCM) was used to detect the contents of macrophages and T cells. Finally, we assessed the safety of CLP/siNLRP3. Results The prepared CLP was spherical, with a small particle size (94 nm) and low permeability. The CLP could efficiently protect siNLRP3 from degradation and then deliver siNLRP3 into PMs, inhibiting NLRP3 inflammasome activation. Also, the CLP/siNLRP3 could inhibit the secretion of mature IL-1β and IL-18 from PMs, thereby achieving a favorable anti-inflammation effect. In vivo, CLP/siNLRP3 could effectively alleviate intestinal injury in UC mice, which was attributed to down-regulating levels of IL-1β and IL-18, inhibiting infiltration of macrophages and other immune cells, and the polarization of M1 macrophages. Finally, pathological testing of tissue sections and blood biochemical tests showed no significant toxic effects of CLP/siNLRP3. Conclusion We introduced a prospective approach for the efficient delivery of siRNA in vitro and in vivo with high safety and stability, which was found to have great potential in treating NLRP3-driven diseases in an RNA-silencing manner.
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Affiliation(s)
- Jing Huang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, Henan University, Kaifeng, Henan Province, 475004, People’s Republic of China
| | - Mengmeng Dai
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, Henan University, Kaifeng, Henan Province, 475004, People’s Republic of China
| | - Mingxia He
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, Henan University, Kaifeng, Henan Province, 475004, People’s Republic of China
| | - Weicheng Bu
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, Henan University, Kaifeng, Henan Province, 475004, People’s Republic of China
| | - Liwen Cao
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, Henan University, Kaifeng, Henan Province, 475004, People’s Republic of China
| | - Jing Jing
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, Henan University, Kaifeng, Henan Province, 475004, People’s Republic of China
| | - Run Cao
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, Henan University, Kaifeng, Henan Province, 475004, People’s Republic of China
| | - Hailong Zhang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, Henan University, Kaifeng, Henan Province, 475004, People’s Republic of China
| | - Ke Men
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan Province, 610044, People’s Republic of China
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Hiraga H, Chinda D, Maeda T, Murai Y, Ogasawara K, Muramoto R, Ota S, Hasui K, Sakuraba H, Ishiguro Y, Yoshida S, Asano K, Nakane A, Fukuda S. Vitamin A Promotes the Fusion of Autophagolysosomes and Prevents Excessive Inflammasome Activation in Dextran Sulfate Sodium-Induced Colitis. Int J Mol Sci 2023; 24:ijms24108684. [PMID: 37240022 DOI: 10.3390/ijms24108684] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/06/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Vitamin A ensures intestinal homeostasis, impacting acquired immunity and epithelial barrier function; however, its role in innate immunity is mostly unknown. Here, we studied the impact of vitamin A in different dextran sulfate sodium (DSS)-induced colitis animal models. Interestingly, more severe DSS-induced colitis was observed in vitamin A-deficient (VAD) mice than in vitamin A-sufficient (VAS) mice; the same was observed in VAD severe combined immunodeficient mice lacking T/B cells. Remarkably, IL-1β production, LC3B-II expression, and inflammasome activity in the lamina propria were significantly elevated in VAD mice. Electron microscopy revealed numerous swollen mitochondria with severely disrupted cristae. In vitro, non-canonical inflammasome signaling-induced pyroptosis, LC3B-II and p62 expression, and mitochondrial superoxide levels were increased in murine macrophages (RAW 264.7) pretreated with retinoic acid receptor antagonist (Ro41-5253). These findings suggest that vitamin A plays a crucial role in the efficient fusion of autophagosomes with lysosomes in colitis.
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Affiliation(s)
- Hiroto Hiraga
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Daisuke Chinda
- Division of Endoscopy, Hirosaki University Hospital, Hirosaki 036-8563, Japan
| | - Takato Maeda
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Yasuhisa Murai
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Kohei Ogasawara
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Ryutaro Muramoto
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Shinji Ota
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Keisuke Hasui
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Hirotake Sakuraba
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Yoh Ishiguro
- Division of Gastroenterology and Hematology, Hirosaki National Hospital, National Hospital Organization, Hirosaki 036-8545, Japan
| | | | - Krisana Asano
- Department of Microbiology and Immunology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Akio Nakane
- Department of Microbiology and Immunology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Shinsaku Fukuda
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
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AIM2 and NLRC4-driven inflammasome activation in adult-onset Still’s disease and the preliminary therapeutic effect exploration of carboxyamidotriazole. Clin Rheumatol 2022; 42:1635-1643. [DOI: 10.1007/s10067-022-06443-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 10/13/2022] [Accepted: 11/02/2022] [Indexed: 11/25/2022]
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Li J, Xu Z, OuYang C, Wu X, Xie Y, Xie J. Protopine alleviates lipopolysaccharide-triggered intestinal epithelial cell injury through retarding the NLRP3 and NF-κB signaling pathways to reduce inflammation and oxidative stress. Allergol Immunopathol (Madr) 2022; 50:84-92. [PMID: 36335450 DOI: 10.15586/aei.v50i6.669] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 05/30/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Inflammatory bowel disease (IBD) is a common chronic intestinal disease. Protopine isolated from different plants has been investigated to understand its special functions on varied diseases. However, the regulatory effects of protopine on the progression of IBD remain unclear. Our study is aimed to explore the effects of protopine on the progression of IBD and its underlying regulatory mechanism of action. METHODS The cell viability was assessed through MTT colorimetric assay. The protein expressions of genes were examined by Western blot analysis. The cell apoptosis and reactive oxygen species level were measured using flow cytometry. The levels of inflammation and oxidative stress-related proteins were tested through enzyme-linked-immunosorbent serologic assay. The intracellular Ca2+ concentration and mitochondrial membrane potential were measured through immunofluorescence assay. RESULTS First, different concentrations of lipopolysaccharide (LPS) were treated with NCM460 cells to establish IBD cell model, and 5-μg/mL LPS was chosen for followed experiments. In this study, we discovered that protopine relieved the LPS-induced inhibited intestinal epithelial cell viability and enhanced cell apoptosis. Moreover, protopine attenuated LPS-stimulated inflammation activation and oxidative stress. Further experiments illustrated that the increased intracellular Ca2+ concentration and decreased mitochondrial membrane potential stimulated by LPS were reversed by protopine treatment. Finally, through Western blot analysis, it was demonstrated that protopine retarded the activated NLR family pyrin domain containing 3 (NLRP3) and nuclear factor kappa B (NF-κB) signaling pathways mediated by LPS. CONCLUSION Protopine alleviated LPS-triggered intestinal epithelial cell injury by inhibiting NLRP3 and NF-κB signaling pathways to reduce inflammation and oxidative stress. This discovery may provide a useful drug for treating IBD.
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Affiliation(s)
- Junyu Li
- Department of Gastroenterology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Zhongjun Xu
- Department of Medical Imaging, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China;
| | - Canhui OuYang
- Department of Gastroenterology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Xiongjian Wu
- Department of Gastroenterology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Yun Xie
- Department of Gastroenterology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Jun Xie
- Department of Gastroenterology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
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11
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Du C, Zhao Y, Wang K, Nan X, Chen R, Xiong B. Effects of Milk-Derived Extracellular Vesicles on the Colonic Transcriptome and Proteome in Murine Model. Nutrients 2022; 14:nu14153057. [PMID: 35893911 PMCID: PMC9332160 DOI: 10.3390/nu14153057] [Citation(s) in RCA: 6] [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: 06/23/2022] [Revised: 07/20/2022] [Accepted: 07/20/2022] [Indexed: 12/29/2022] Open
Abstract
Evidence shows that effective nutritional intervention can prevent or mitigate the risk and morbidity of inflammatory bowel disease (IBD). Bovine milk extracellular vesicles (mEVs), a major bioactive constituent of milk, play an important role in maintaining intestinal health. The aims of this study were to assess the effects of mEV pre-supplementation on the colonic transcriptome and proteome in dextran sulphate sodium (DSS)-induced acute colitis, in order to understand the underlying molecular mechanisms of mEV protection against acute colitis. Our results revealed that dietary mEV supplementation alleviated the severity of acute colitis, as evidenced by the reduced disease activity index scores, histological damage, and infiltration of inflammatory cells. In addition, transcriptome profiling analysis found that oral mEVs significantly reduced the expression of pro-inflammatory cytokines (IL-1β, IL-6, IL-17A and IL-33), chemokine ligands (CXCL1, CXCL2, CXCL3, CXCL5, CCL3 and CCL11) and chemokine receptors (CXCR2 and CCR3). Moreover, oral mEVs up-regulated 109 proteins and down-regulated 150 proteins in the DSS-induced murine model, which were involved in modulating amino acid metabolism and lipid metabolism. Collectively, this study might provide new insights for identifying potential targets for the therapeutic effects of mEVs on colitis.
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12
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Lu Q, Yang MF, Liang YJ, Xu J, Xu HM, Nie YQ, Wang LS, Yao J, Li DF. Immunology of Inflammatory Bowel Disease: Molecular Mechanisms and Therapeutics. J Inflamm Res 2022; 15:1825-1844. [PMID: 35310454 PMCID: PMC8928114 DOI: 10.2147/jir.s353038] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/26/2022] [Indexed: 12/12/2022] Open
Abstract
As a main digestive organ and an important immune organ, the intestine plays a vital role in resisting the invasion of potential pathogens into the body. Intestinal immune dysfunction remains important pathogenesis of inflammatory bowel disease (IBD). In this review, we explained the interactions among symbiotic flora, intestinal epithelial cells, and the immune system, clarified the operating mechanism of the intestinal immune system, and highlighted the immunological pathogenesis of IBD, with a focus on the development of immunotherapy for IBD. In addition, intestinal fibrosis is a significant complication in patients with long-term IBD, and we reviewed the immunological pathogenesis involved in the development of intestinal fibrogenesis and provided novel antifibrotic immunotherapies for IBD.
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Affiliation(s)
- Quan Lu
- Department of Gastroenterology, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University), Shenzhen, Guangdong, People’s Republic of China
- Department of Gastroenterology, Shenzhen People’s Hospital (The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, People’s Republic of China
| | - Mei-feng Yang
- Department of Hematology, Yantian District People’s Hospital, Shenzhen, Guangdong, People’s Republic of China
| | - Yu-jie Liang
- Department of Child and Adolescent Psychiatry, Shenzhen Kangning Hospital, Shenzhen, Guangdong, People’s Republic of China
| | - Jing Xu
- Department of Gastroenterology and Hepatology, Guangzhou First People’s Hospital (School of Medicine of South China University of Technology), Guangzhou, Guangdong, People’s Republic of China
| | - Hao-ming Xu
- Department of Gastroenterology and Hepatology, Guangzhou First People’s Hospital (School of Medicine of South China University of Technology), Guangzhou, Guangdong, People’s Republic of China
| | - Yu-qiang Nie
- Department of Gastroenterology and Hepatology, Guangzhou First People’s Hospital (School of Medicine of South China University of Technology), Guangzhou, Guangdong, People’s Republic of China
| | - Li-sheng Wang
- Department of Gastroenterology, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University), Shenzhen, Guangdong, People’s Republic of China
- Department of Gastroenterology, Shenzhen People’s Hospital (The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, People’s Republic of China
| | - Jun Yao
- Department of Gastroenterology, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University), Shenzhen, Guangdong, People’s Republic of China
- Department of Gastroenterology, Shenzhen People’s Hospital (The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, People’s Republic of China
- Correspondence: Jun Yao; De-feng Li, Department of Gastroenterology, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University), No. 1017, Dongmen North Road, Luohu District, Shenzhen, 518020, People’s Republic of China, Tel +86 755 25533018, Email ;
| | - De-feng Li
- Department of Gastroenterology, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University), Shenzhen, Guangdong, People’s Republic of China
- Department of Gastroenterology, Shenzhen People’s Hospital (The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, People’s Republic of China
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13
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Verma A, Pittala S, Alhozeel B, Shteinfer-Kuzmine A, Ohana E, Gupta R, Chung JH, Shoshan-Barmatz V. The role of the mitochondrial protein VDAC1 in inflammatory bowel disease: a potential therapeutic target. Mol Ther 2022; 30:726-744. [PMID: 34217890 PMCID: PMC8821898 DOI: 10.1016/j.ymthe.2021.06.024] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 04/19/2021] [Accepted: 06/22/2021] [Indexed: 02/04/2023] Open
Abstract
Recent studies have implicated mitochondrial dysfunction as a trigger of inflammatory bowel diseases, including Crohn's disease (CD) and ulcerative colitis (UC). We have investigated the role of the mitochondria gate-keeper protein, the voltage-dependent-anion channel 1 (VDAC1), in gastrointestinal inflammation and tested the effects of the newly developed VDAC1-interacting molecules, VBIT-4 and VBIT-12, on UC induced by dextran sulfate sodium (DSS) or trinitrobenzene sulphonic acid (TNBS) in mice. VDAC1, which controls metabolism, lipids transport, apoptosis, and inflammasome activation, is overexpressed in the colon of CD and UC patients and DSS-treated mice. VBIT-12 treatment of cultured colon cells inhibited the DSS-induced VDAC1 overexpression, oligomerization, and apoptosis. In the DSS-treated mice, VBIT-12 suppressed weight loss, diarrhea, rectal bleeding, pro-inflammatory cytokine production, crypt and epithelial cell damage, and focal inflammation. VBIT-12 also inhibited the infiltration of inflammatory cells, apoptosis, mtDNA release, and activation of caspase-1 and NRLP3 inflammasome to reduce the inflammatory response. The levels of the ATP-gated P2X7-Ca2+/K+ channel and ER-IP3R-Ca2+ channel, and of the mitochondrial anti-viral protein (MAVS), mediating NLRP3 inflammasome assembly and activation, were highly increased in DSS-treated mice, but not when VBIT-12 treated. We conclude that UC may be promoted by VDAC1-overexpression and may therefore be amenable to treatment with novel VDAC1-interacting molecules. This VDAC1-based strategy exploits a completely new target for UC treatment and opens a new avenue for treating other inflammatory/autoimmune diseases.
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Affiliation(s)
- Ankit Verma
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Srinivas Pittala
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Belal Alhozeel
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Anna Shteinfer-Kuzmine
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Ehud Ohana
- The Department of Physiology, Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Rajeev Gupta
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Jay H Chung
- Laboratory of Obesity and Aging Research, Cardiovascular Branch, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Varda Shoshan-Barmatz
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
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Sishen Pill Maintained Colonic Mucosal Barrier Integrity to Treat Ulcerative Colitis via Rho/ROCK Signaling Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:5536679. [PMID: 34925530 PMCID: PMC8677397 DOI: 10.1155/2021/5536679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 11/20/2021] [Indexed: 12/11/2022]
Abstract
Sishen Pill (SSP) is a classical prescription of traditional Chinese medicine and often used to treat gastrointestinal diseases, including ulcerative colitis (UC). However, its mechanism is still unclear. We aimed to determine the mechanism of SSP in the treatment of UC by investigating if it maintains the integrity of the intestinal mucosal barrier via the Rho A/Rho kinase (ROCK) signaling pathway. Administration of 2,4,6-trinitrobenzene sulfonic acid (TNBS) successfully induced chronic UC in rats, while the treatment effect of SSP was evaluated by body weight change, colonic length, colonic weight, colonic weight index, histological injury score, and pathological injury score after colitis rats were treated for 7 days. TNF-α and IL-1β levels were analyzed by ELISA, and the proteins of PI3K/Akt and RhoA/ROCK signaling pathway and junction proteins expression were measured by western blotting assay, and the distribution of Claudin 5 was shown by immunofluorescence. SSP significantly improved the clinical symptoms of colitis in rats and reduced the expression of p-RhoA, ROCK1, PI3K, and Akt in the colon mucosa, while it increased the expression of p-Rac and related proteins (Claudin-5, JAM1, VE-cadherin, and Connexin 43). In addition, SSP increased p-AMPKα and PTEN proteins expression, decreased Notch1 level, and hinted that activation of the PI3K/Akt signaling pathway was inhibited. In conclusion, SSP effectively treated chronic colitis induced by TNBS, which may have been achieved by inhibiting PI3K/Akt signal to suppress activation of the Rho/ROCK signaling pathway to finally maintain the integrity of the intestinal mucosal barrier.
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15
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Rashidian A, Akbarzadeh D, Asgarpanah J, Dehpour A. Bunium persicum essential oil reduced acetic acid-induced rat colitis through suppression of NF-κB pathway. AVICENNA JOURNAL OF PHYTOMEDICINE 2021; 11:505-514. [PMID: 34745922 PMCID: PMC8554278 DOI: 10.22038/ajp.2021.18037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/09/2021] [Accepted: 01/18/2021] [Indexed: 11/24/2022]
Abstract
Objective: The aim of this study was to evaluate the anti-inflammatory effect of B. persicum essential oil on colonic inflammation and the role of suppression of NF-κB pathway in rat colitis induced by acetic acid solution. Materials and Methods: Induction of acute colitis was done by intra-luminal instillation of 2 ml of acetic acid (4%) diluted in normal saline. Two hours after colitis induction, 0.2% tween 80 in normal saline, prednisolone (4 mg/kg) or B. persicum essential oil (100, 200, and 400 mg/kg) were administered to the rats orally and continued for 5 consecutive days. The severity of macroscopic and microscopic damages was assessed. Myeloperoxidase and TNF-α activity was evaluated by biochemical analysis and ELISA respectively and protein expression of p-NF-κB was assessed by immunohistochemistry (IHC). Results: Prednisolone and B. persicum essential oil (100, 200, and 400 mg/kg) decreased macroscopic and microscopic injuries compared to the acetic acid group. On the other hand, prednisolone and B. persicum essential oil (200 and 400 mg/kg) decreased the activity of MPO and TNF-α in the colon tissue of rats compared with the acetic acid group. Furthermore, they suppressed the expression of p-NF-κB protein induced by acetic acid administration. Conclusion: It is suggested that the anti-inflammatory effect of B. persicum essential oil on acetic acid-induced colitis in rats may be due to the suppression of NF-κB pathway.
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Affiliation(s)
- Amir Rashidian
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Dorna Akbarzadeh
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Jinous Asgarpanah
- Department of Pharmacognosy, Faculty of Pharmacy and Pharmaceutical Sciences, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Ahmadreza Dehpour
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
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16
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Zhang Y, Yang W, Li W, Zhao Y. NLRP3 Inflammasome: Checkpoint Connecting Innate and Adaptive Immunity in Autoimmune Diseases. Front Immunol 2021; 12:732933. [PMID: 34707607 PMCID: PMC8542789 DOI: 10.3389/fimmu.2021.732933] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 09/20/2021] [Indexed: 12/12/2022] Open
Abstract
Autoimmune diseases are a broad spectrum of human diseases that are characterized by the breakdown of immune tolerance and the production of autoantibodies. Recently, dysfunction of innate and adaptive immunity is considered to be a key step in the initiation and maintenance of autoimmune diseases. NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome is a multimeric protein complex, which can detect exogenous pathogen irritants and endogenous danger signals. The main function of NLRP3 inflammasome is to promote secretion of interleukin (IL)-1β and IL-18, and pyroptosis mediated by caspase-1. Served as a checkpoint in innate and adaptive immunity, aberrant activation and regulation of NLRP3 inflammasome plays an important role in the pathogenesis of autoimmune diseases. This paper reviewed the roles of NLRP3 inflammasome in autoimmune diseases, which shows NLRP3 inflammasome may be a potential target for autoimmune diseases deserved further study.
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Affiliation(s)
- Yiwen Zhang
- Department of Dermatology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wenlin Yang
- Department of Dermatology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wangen Li
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yunjuan Zhao
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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17
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Li C, Wang M, Sui J, Zhou Y, Chen W. Protective mechanisms of Agrimonia pilosa Ledeb in dextran sodium sulfate-induced colitis as determined by a network pharmacology approach. Acta Biochim Biophys Sin (Shanghai) 2021; 53:1342-1353. [PMID: 34523667 DOI: 10.1093/abbs/gmab116] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Indexed: 12/27/2022] Open
Abstract
Previous studies reported that Agrimonia pilosa (AP) Ledeb possessed diverse biological activities, including anti-inflammatory, antioxidant, and anti-tumor activities. However, the effect of AP on ulcerative colitis (UC) remains unclear. In this study, we investigated the therapeutic effect and mechanisms of AP on dextran sodium sulfate (DSS)-induced colitis. The potential constituents of AP were investigated by ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS). A total of 13 compounds were recognized by UPLC-Q-TOF/MS chromatogram. Furthermore, a network pharmacology approach revealed that there are 297 candidate targets of UC and 549 common targets for the 13 active ingredients of AP. GO enrichment and KEGG pathway analysis indicated that AP might have a protective effect on UC through the nuclear factor κB (NF-κB) and nucleotide-binding oligomerization domain (NOD)-like receptor signaling pathways. Subsequent experimental validation in a DSS-induced colitis model revealed that AP alleviated the severity of DSS-induced colitis, reduced the production of proinflammatory factors, and protected against the loss of intestinal integrity. Moreover, AP inhibited the phosphorylation of NF-κB p65 and the activation of the NLRP3 inflammasome. In conclusion, AP ameliorated DSS-induced colitis through suppressing the activation of the NLRP3 inflammasome and NF-κB signaling pathways.
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Affiliation(s)
- Chen Li
- Department of General Surgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Meng Wang
- Department of General Surgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Junkang Sui
- College of Agriculture, Liaocheng University, Liaocheng 252000, China
| | - Yongkun Zhou
- Department of General Surgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Wei Chen
- Department of Gastroenterology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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18
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Colonic Epithelial PHLPP2 Deficiency Promotes Colonic Epithelial Pyroptosis by Activating the NF- κB Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5570731. [PMID: 34394827 PMCID: PMC8363454 DOI: 10.1155/2021/5570731] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 07/17/2021] [Indexed: 02/06/2023]
Abstract
Background Ulcerative colitis (UC) is a chronic inflammatory disease with increasing prevalence worldwide. Barrier defect in intestinal epithelial cells (IECs) is one of the main pathogeneses in UC. Pyroptosis is a programmed lytic cell death and is triggered by inflammatory caspases, while little is known about its role in UC. Methods Differentially expressed genes (DEGs) were identified by comparing UC patients with healthy controls from the GEO datasets. The candidate genes involved in pyroptosis were obtained, and the underlying molecular mechanism in the progression of UC was explored in vivo and in vitro. Results Pleckstrin homology domain leucine-rich repeat protein phosphatase 2 (PHLPP2), a protein phosphatase, was downregulated and involved in regulating inflammation-induced IEC pyroptosis by modulating the NF-κB signaling in UC through bioinformatics analysis. Moreover, we demonstrated that PHLPP2 was downregulated in UC patients and UC mice. Besides, we found that PHLPP2 depletion activated the NF-κB signaling and increased the expressions of caspase-1 P20, Gasdermin N, IL-18, and IL-1β contributing to IEC pyroptosis and inflammation in UC mice. Furthermore, we found that PHLPP2−/− mice developed hypersensitivity to dextran sulfate sodium (DSS) treatment toward colitis showing activated NF-κB signaling and dramatically induced expressions of caspase-1 P20, Gasdermin N, IL-18, and IL-1β. Mechanically, this inflammation-induced downregulation of PHLPP2 was alleviated by an NF-κB signaling inhibitor in intestinal organoids of PHLPP2−/− mice and fetal colonic cells. Conclusions PHLPP2 downexpression activated the NF-κB signaling and promoted the IEC pyroptosis, leading to UC progression. Therefore, PHLPP2 might be an attractive candidate therapeutic target for UC.
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Xu X, Li J, Long X, Tao S, Yu X, Ruan X, Zhao K, Tian L. C646 Protects Against DSS-Induced Colitis Model by Targeting NLRP3 Inflammasome. Front Pharmacol 2021; 12:707610. [PMID: 34322027 PMCID: PMC8313226 DOI: 10.3389/fphar.2021.707610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 06/18/2021] [Indexed: 12/22/2022] Open
Abstract
Numerous pieces of evidence have identified that the NLRP3 inflammasome plays a pivotal role in the development and pathogenesis of colitis. Targeting the NLRP3 inflammasome represents a potential therapeutic treatment. Our previous studies have suggested that acetylation of NLRP3 is indispensable to NLRP3 inflammasome activation, and some acetyltransferase inhibitors could suppress the NLRP3 inflammasome activation. Here, we identified that C646, an inhibitor of histone acetyltransferase p300, exerts anti-inflammatory effects in DSS-induced colitis mice by targeting the NLRP3 inflammasome. Mechanistically, C646 not only inhibits NF-κB activation, leading to the decreased expression of pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α) and NLRP3, but also suppresses the NLRP3 inflammasome assembly by disrupting the interaction between NLRP3 and ASC. In addition, C646 attenuated the LPS-induced acute systemic inflammation model. Thus, our results demonstrate the ability of C646 to suppress the NLRP3 inflammasome activity and its potential application in the treatment of inflammatory bowel disease.
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Affiliation(s)
- Xueming Xu
- Department of Hematology and Key Laboratory of Non-Resolving Inflammation and Cancer of Hunan Province, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Jing Li
- Department of Hematology and Key Laboratory of Non-Resolving Inflammation and Cancer of Hunan Province, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiuyan Long
- Department of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Sifan Tao
- Department of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoyu Yu
- Department of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Xixian Ruan
- Department of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Kai Zhao
- Department of Hematology and Key Laboratory of Non-Resolving Inflammation and Cancer of Hunan Province, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Li Tian
- Department of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, China
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20
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Biological functions of NLRP3 inflammasome: A therapeutic target in inflammatory bowel disease. Cytokine Growth Factor Rev 2021; 60:61-75. [PMID: 33773897 DOI: 10.1016/j.cytogfr.2021.03.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 03/10/2021] [Indexed: 12/15/2022]
Abstract
Cases of inflammatory bowel disease (IBD), a debilitating intestinal disorder with complex pathological mechanisms, have been increasing in recent years, straining the capacity of healthcare systems. Thus, novel therapeutic targets and innovative agents must be developed. Notably, the NLRP3 inflammasome is upregulated in patients with IBD and/or in animal experimental models. As an innate immune supramolecular assembly, the NLRP3 inflammasome is persistently activated during the pathogenesis of IBD by multiple stimuli. Moreover, this protein complex regulates pro-inflammatory cytokines. Thus, targeting this multiprotein oligomer may offer a feasible way to relieve IBD symptoms and improve clinical outcomes. The mechanisms by which the NLRP3 inflammasome is activated, its role in IBD pathogenesis, and the drugs administered to target this protein complex are reviewed herein. This review establishes that the use of inflammasome-targeting drugs are effective for IBD treatment. Moreover, this review suggests that the value and potential of naturally sourced or derived medicines for IBD treatment must be recognized and appreciated.
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21
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Xu Q, Zhou X, Strober W, Mao L. Inflammasome Regulation: Therapeutic Potential for Inflammatory Bowel Disease. Molecules 2021; 26:molecules26061725. [PMID: 33808793 PMCID: PMC8003415 DOI: 10.3390/molecules26061725] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 12/22/2022] Open
Abstract
Inflammasomes are multiprotein complexes formed to regulate the maturation of pro-inflammatory caspases, in response to intracellular or extracellular stimulants. Accumulating studies showed that the inflammasomes are implicated in the pathogenesis of inflammatory bowel disease (IBD), although their activation is not a decisive factor for the development of IBD. Inflammasomes and related cytokines play an important role in the maintenance of gut immune homeostasis, while its overactivation might induce excess immune responses and consequently cause tissue damage in the gut. Emerging studies provide evidence that some genetic abnormalities might induce enhanced NLRP3 inflammasome activation and cause colitis. In these cases, the colonic inflammation can be ameliorated by blocking NLRP3 activation or its downstream cytokine IL-1β. A number of natural products were shown to play a role in preventing colon inflammation in various experimental colitis models. On the other hand, lack of inflammasome function also causes intestinal abnormalities. Thus, an appropriate regulation of inflammasomes might be a promising therapeutic strategy for IBD intervention. This review aims at summarizing the main findings in these studies and provide an outline for further studies that might contribute to our understanding of the role of inflammasomes in the pathogenesis and therapeutic treatment of IBD.
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Affiliation(s)
- Qiuyun Xu
- Department of Immunology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226019, China; (Q.X.); (X.Z.)
| | - Xiaorong Zhou
- Department of Immunology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226019, China; (Q.X.); (X.Z.)
| | - Warren Strober
- Mucosal Immunity Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
- Correspondence: (W.S.); (L.M.)
| | - Liming Mao
- Department of Immunology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226019, China; (Q.X.); (X.Z.)
- Basic Medical Research Center, School of Medicine, Nantong University, Nantong 226019, China
- Correspondence: (W.S.); (L.M.)
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22
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Lu S, Duan M, Guo Z, Zhou Y, Wu D, Zhang X, Wang Y, Ye C, Ju R, Li J, Zhang D, Zhu L. Carboxyamidotriazole exerts anti-inflammatory activity in lipopolysaccharide-induced RAW264.7 macrophages by inhibiting NF-κB and MAPKs pathways. Exp Ther Med 2020; 20:1455-1466. [PMID: 32742379 PMCID: PMC7388320 DOI: 10.3892/etm.2020.8889] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 05/20/2020] [Indexed: 12/23/2022] Open
Abstract
Carboxyamidotriazole (CAI), originally developed as a non-cytotoxic anti-cancer drug, was shown to have anti-inflammatory activity according to recent studies in a number of animal models of inflammation. However, its mechanism of action has not been characterized. Therefore, the present study was performed to identify the anti-inflammatory action of CAI in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages and to identify the signal transduction pathways involved. The in vitro results revealed that CAI had no direct effect on the activity of cyclooxygenase (COX), suggesting a different anti-inflammatory mechanism compared with that of COX-inhibiting non-steroidal anti-inflammatory drugs. Further investigation in RAW264.7 macrophages revealed that CAI decreased the production of nitric oxide via decreasing the LPS-stimulated expression of inducible nitric oxide synthase, and downregulated both mRNA and protein expression levels of the cytokines tumor necrosis factor-α, interleukin (IL)-1β, and IL-6. CAI also significantly reduced the increased DNA-binding activity of nuclear factor (NF)-κB induced by LPS stimulation. With respect to the mechanisms involved on NF-κB activity, CAI exhibited suppression of the phosphorylation and degradation of the inhibitor of nuclear factor-κBα (IκB), and decreased the phosphorylation levels of the p65 subunit and its subsequent nuclear translocation. In addition, CAI significantly decreased the phosphorylated forms of p38, JNK and ERK, which were increased following LPS stimulation, while the total expression levels of p38, JNK and ERK remained unaltered. The results in the present study indicate that CAI alleviates the inflammatory responses of RAW 264.7 macrophages in response to LPS stimulation via attenuating the activation of NF-κB and MAPK signaling pathways and decreasing the levels of pro-inflammatory mediators. This offers a novel perspective for understanding the anti-inflammatory mechanism of CAI and suggests its potential use as a therapeutic treatment in inflammatory diseases with excessive macrophage activation.
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Affiliation(s)
- Shan Lu
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Mengyuan Duan
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Zehao Guo
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Yongting Zhou
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Danwei Wu
- Department of Pharmacy, Beijing Jishuitan Hospital, Beijing 100035, P.R. China
| | - Xiaojuan Zhang
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Yicheng Wang
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Caiying Ye
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Rui Ju
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Juan Li
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Dechang Zhang
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Lei Zhu
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
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23
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Cilostazol protects against acetic acid-induced colitis in rats: Possible role for cAMP/SIRT1 pathway. Eur J Pharmacol 2020; 881:173234. [PMID: 32497625 DOI: 10.1016/j.ejphar.2020.173234] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 05/21/2020] [Accepted: 05/29/2020] [Indexed: 12/13/2022]
Abstract
The phosphodiesterase-3 inhibitor, cilostazol has been recently shown to protect against chemically induced colitis in animal models. However, whether cyclic adenosine monophosphate (cAMP) contributes to the anti-inflammatory activity of cilostazol in colitis is still unknown. In the current study, we investigated the role of cAMP/silent information regulator-1 (SIRT-1) pathway in the protective effect of cilostazol using rat model of acetic acid-induced colitis. Upregulation of SIRT1 activity and expression has been recently shown to protect against chemically induced colitis. Our results demonstrated that cilostazol alleviated the histopathological changes associated with acetic acid-induced colitis. Interestingly, pre-administration of cilostazol increased cAMP concentration and SIRT1 expression in colonic mucosa to levels similar to that observed in control animals without induction of colitis. In addition, cilostazol inhibited the SIRT1 targets; NF-κB, Akt and MAPK inflammatory pathways as demonstrated by suppression of acetic acid-induced upregulation of NF-κB activity, p-AKT levels and the expression of p38 MAPK. NF-κB activity and the levels of p-AKT, tumor necrosis factor α (TNF-α), interleukin-1β (IL-1β) were similar in rats pretreated with cilostazol prior to induction of colitis and the control rats without colitis. Furthermore, cilostazol reduced acetic acid-induced oxidative stress and apoptosis. In conclusion, the protective effect of cilostazol against acetic acid-induced colitis may be attributed to activation of SIRT1 expression by cAMP. SIRT1 is suggested to contribute to cilostazol-induced suppression of NF-κB, Akt and MAPK inflammatory pathways, oxidative stress and apoptosis.
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24
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Goudarzi R, Partoazar A, Mumtaz F, Yousefi-Manesh H, Abdollahi A, Dehpour A, Rashidian A. Arthrocen, an avocado-soy unsaponifiable agent, improves acetic acid-induced colitis in rat by inhibition of NF-kB signaling pathway. J Food Biochem 2020; 44:e13244. [PMID: 32441355 DOI: 10.1111/jfbc.13244] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 03/29/2020] [Accepted: 03/29/2020] [Indexed: 12/14/2022]
Abstract
The goal of the current study was to evaluate the anti-inflammatory effect of Arthrocen against acetic acid-induced colitis in rats. Acute inflammation was produced through intrarectal administration of 2 ml diluted acetic acid (4%) solution. All interventions were carried out for 5 days after colitis induction. Arthrocen was administered orally at doses of 30, 60, and 120 mg kg-1 day-1 . Then, macroscopic and microscopic studies were performed. Myeloperoxidase (MPO) activity and tumor necrosis factor-α (TNF-α) activity were measured by biochemical and ELISA methods, respectively. Immunohistochemistry was done to investigate the expression of pNF-κB. The results of this study demonstrated that Arthrocen reduced macroscopic and microscopic damage compared to the acetic acid group. Furthermore, Arthrocen decreased the activity of MPO and TNF-α as well as the protein expression of pNF-kB in rat colon tissue. The results of the current study revealed the anti-inflammatory activity of Arthrocen in acetic acid mediated colon inflammation through suppressing the NF-κB pathway. PRACTICAL APPLICATIONS: Inflammatory bowel disease (IBD) is an immune-mediated chronic relapsing disorder affecting the gastrointestinal tract (GIT) characterized by chronic bowel inflammation. A plant-based dietary supplement containing avocado and soy unsaponifiable extracts in a ratio of 1:2 is known as Arthrocen. Arthrocen can be used as a complementary drug beside current drugs in clinical trials for the treatment of IBD.
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Affiliation(s)
- Ramin Goudarzi
- Division of Research and Development, Pharmin USA, LLC, San Jose, CA, USA
| | - Alireza Partoazar
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Faiza Mumtaz
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hasan Yousefi-Manesh
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Abdollahi
- Department of Pathology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Dehpour
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Rashidian
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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25
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Güvenç M, Cellat M, Özkan H, Tekeli İO, Uyar A, Gökçek İ, İşler CT, Yakan A. Protective Effects of Tyrosol Against DSS-Induced Ulcerative Colitis in Rats. Inflammation 2020; 42:1680-1691. [PMID: 31115770 DOI: 10.1007/s10753-019-01028-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this study, the effects of tyrosol were investigated in DSS-induced experimental ulcerative colitis model. For this purpose, rats were divided into five groups of seven rats in each: control group, colitis group (DSS-4%), tyrosol group (tyrosol 20 mg/kg), sulfasalazine (sulfasalazine+DSS 100 mg/kg), and treatment group (tyrosol+DSS 20 mg/kg). In the study, the active substances were administered to all animals for a period of 21 days. At the end of the study, malondialdehyde (MDA) levels increased (p < 0.001); GSH level (p < 0.05) along with GSH.Px (p < 0.01) and CAT (p < 0.001) activities decreased in the DSS-induced colitis group. However, with the administration of tyrosol, MDA and GSH levels along with GSH.Px and CAT activities came to the same levels as the control group. In the colitis group, an increase occurred in IL-6, COX-2, and NF-κB parameters, which created a significant difference compared to the control group (p < 0.001). Similarly, TNF-α levels also significantly increased with the administration of DSS (p < 0.05) which created a significant difference compared to the control group, while there was no difference among the other groups. As for the Nrf-2 data, it decreased with the administration of DSS which created a significant difference compared to the control group (p < 0.05), while there was no difference in other groups. In the colitis-induced group, IL-6, COX-2, and NF-κB gene expression levels also similarly increased but returned to the normal levels with the administration of tyrosol. In the histopathological scoring, the negativity that increased with the administration of DSS returned to the normal levels with the administration of tyrosol+DSS. In conclusion, according to the data obtained, tyrosol fixed the destruction picture in the DSS-induced colitis model, giving rise to thought that it has a protective effect.
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Affiliation(s)
- Mehmet Güvenç
- Faculty of Veterinary Medicine, Department of Physiology, Hatay Mustafa Kemal University, Hatay, Turkey.
| | - Mustafa Cellat
- Faculty of Veterinary Medicine, Department of Physiology, Hatay Mustafa Kemal University, Hatay, Turkey
| | - Hüseyin Özkan
- Faculty of Veterinary Medicine, Department of Genetics, Hatay Mustafa Kemal University, Hatay, Turkey
| | - İbrahim Ozan Tekeli
- Faculty of Veterinary Medicine, Department of Pharmacology and Toxicology, Hatay Mustafa Kemal University, Hatay, Turkey
| | - Ahmet Uyar
- Faculty of Veterinary Medicine, Department of Pathology, Hatay Mustafa Kemal University, Hatay, Turkey
| | - İshak Gökçek
- Faculty of Veterinary Medicine, Department of Physiology, Hatay Mustafa Kemal University, Hatay, Turkey
| | - Cafer Tayer İşler
- Faculty of Veterinary Medicine, Department of Surgery, Hatay Mustafa Kemal University, Hatay, Turkey
| | - Akın Yakan
- Faculty of Veterinary Medicine, Department of Zootechnics, Erciyes University, Kayseri, Turkey
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26
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Chamanara M, Abdollahi A, Rezayat SM, Ghazi-Khansari M, Dehpour A, Nassireslami E, Rashidian A. Thymol reduces acetic acid-induced inflammatory response through inhibition of NF-kB signaling pathway in rat colon tissue. Inflammopharmacology 2019; 27:1275-1283. [PMID: 30903350 DOI: 10.1007/s10787-019-00583-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 03/11/2019] [Indexed: 12/14/2022]
Abstract
AIM The aim of the present study was to evaluate the anti-inflammatory effect of thymol in acetic acid-induced rat colitis through inhibiting the NF-κB signaling pathway. METHODS Colitis was induced by intra-rectal administration of 2 mL of diluted acetic acid (4%) solution using a flexible plastic rubber catheter in Wistar rats. Colitis was induced on the first day and all treatments were applied 5 days after the induction of colitis. Thymol was dissolved in 0.2% tween 80 in saline and administered orally at doses of 10, 30, and 100 mg/kg per day. Macroscopic and histopathologic investigations were done. The expression of myeloperoxidase (MPO) and tumor necrosis factor-α (TNF-α) was determined by immunohistochemistry (IHC) assay. The protein expression level of pNF-κB p65 was measured by the Western blot technique. RESULTS Treatment with thymol reduced mucosal and histological damages compared to the acetic acid group. Our results showed that thymol markedly inhibited the production of MPO and TNF-α in the colon tissue of the acetic acid-induced group. In addition, thymol decreased acetic acid-induced up-regulation of pNFκB p65 protein. CONCLUSIONS The results of our study suggest that thymol exerts an anti-inflammatory effect in acetic acid-induced rat colitis by inhibiting the NF-κB signaling pathway and downregulating TNF-α and MPO expressions.
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Affiliation(s)
- Mohsen Chamanara
- Department of Pharmacology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Alireza Abdollahi
- Department of Pathology, Imam Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mahdi Rezayat
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mamoud Ghazi-Khansari
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Dehpour
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Nassireslami
- Department of Pharmacology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Amir Rashidian
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. .,Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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27
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Zhen Y, Zhang H. NLRP3 Inflammasome and Inflammatory Bowel Disease. Front Immunol 2019; 10:276. [PMID: 30873162 PMCID: PMC6403142 DOI: 10.3389/fimmu.2019.00276] [Citation(s) in RCA: 378] [Impact Index Per Article: 75.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 01/31/2019] [Indexed: 02/05/2023] Open
Abstract
NLRP3 inflammasome can be widely found in epithelial cells and immune cells. The NOD-like receptors (NLRs) family member NLRP3 contains a central nucleotide-binding and oligomerization (NACHT) domain which facilitates self-oligomerization and has ATPase activity. The C-terminal conserves a leucine-rich repeats (LRRs) domain which can modulate NLRP3 activity and sense endogenous alarmins and microbial ligands. In contrast, the N-terminal pyrin domain (PYD) can account for homotypic interactions with the adaptor protein-ASC of NLRP3 inflammasome. These characters enable it function in innate immunity. Its downstream effector proteins include caspase-1 and IL-1β etc. which exhibit protective or detrimental roles in mucosal immunity in different studies. Here, we comprehensively review the current literature regarding the physiology of NLRP3 inflammasome and its potential roles in the pathogenesis of IBD. We also discuss about the complex interactions among the NLRP3 inflammasome, mucosal immune response, and gut homeostasis as found in experimental models and IBD patients.
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Affiliation(s)
- Yu Zhen
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China.,The Centre of Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China
| | - Hu Zhang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China.,The Centre of Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China
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28
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A novel fluorinated triazole derivative suppresses macrophage activation and alleviates experimental colitis via a Twist1-dependent pathway. Biochem Pharmacol 2018; 155:275-287. [DOI: 10.1016/j.bcp.2018.07.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 07/16/2018] [Indexed: 02/01/2023]
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29
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NLRP3: A promising therapeutic target for autoimmune diseases. Autoimmun Rev 2018; 17:694-702. [PMID: 29729449 DOI: 10.1016/j.autrev.2018.01.020] [Citation(s) in RCA: 178] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 01/26/2018] [Indexed: 12/12/2022]
Abstract
NLRP3, a member of nucleotide-binding domain-(NOD) like receptor family, can be found in large varieties of immune and non-immune cells. Upon activation, the NLRP3, apoptosis-associated speck-like protein (ASC) and pro-caspase-1 would assemble into a multimeric protein, called the NLRP3 inflammasome. Then the inflammasome promotes inflammation (through specific cleavage and production of bioactive IL-1β and IL-18) and pyroptotic cell death. Previous studies have indicated the importance of NLRP3 in regulating innate immunity. Recently, numerous studies have revealed their significance in autoimmune diseases, such as systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), systemic sclerosis (SSc) and inflammatory bowel disease (IBD). In this review, we will briefly discuss the biological features of NLRP3 and summarize the recent progression of the involvement of NLRP3 in the development and pathogenesis of autoimmune diseases, as well as its clinical implications and therapeutic potential.
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30
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Rezayat SM, Dehpour AR, Motamed SM, Yazdanparast M, Chamanara M, Sahebgharani M, Rashidian A. Foeniculum vulgare essential oil ameliorates acetic acid-induced colitis in rats through the inhibition of NF-kB pathway. Inflammopharmacology 2017; 26:851-859. [PMID: 29067571 DOI: 10.1007/s10787-017-0409-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Accepted: 10/11/2017] [Indexed: 12/19/2022]
Abstract
AIM The aim of the present study is to investigate the protective effects of Foeniculum vulgare essential oil on intestinal inflammation through the inhibition of NF-kB pathway in acetic acid-induced rat colitis. METHODS Acute colitis was induced by intra-rectal administration of 2 mL of diluted acetic acid (4%) solution. Two hours after the induction of colitis, 0.2% tween 80 in normal saline, dexamethasone (2 mg/kg) and F. vulgare essential oil (100, 200, 400 mg/kg) were administered to the animals by oral gavage and continued for 5 consecutive days. Assessment of macroscopic and microscopic lesions was done. MPO activity was evaluated by biochemical method. Furthermore, TNF-α activity was detected by immunohistochemistry (IHC) and the expression level of p-NF-kB p65 protein was measured by western blot analysis. RESULTS Dexamethasone and F. vulgare essential oil (200, 400 mg/kg) reduced the macroscopic and microscopic lesions compared to the acetic acid group (p < 0.01, p < 0.001). In addition, these agents decreased the activity of MPO (p < 0.01, p < 0.001) and the expression of TNF-α positive cells (p < 0.05, p < 0.01, p < 0.001) in the colon tissue compared to acetic acid group. Furthermore, they inhibited acetic acid-induced expression of p-NF-kB p65 protein (p < 0.05, p < 0.001). CONCLUSION It is proposed that the anti-inflammatory activity of F. vulgare essential oil on acetic acid-induced colitis in rats may involve the inhibition of NF-kB pathway.
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Affiliation(s)
- Seyed Mahdi Rezayat
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, P.O. Box 13145-784, Tehran, Iran
- Department of Toxicology and Pharmacology, School of Pharmacy, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran
| | - Ahmad-Reza Dehpour
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, P.O. Box 13145-784, Tehran, Iran
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Mohammadi Motamed
- Department of Pharmacognosy, School of Pharmacy, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran
| | - Maryam Yazdanparast
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Chamanara
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, P.O. Box 13145-784, Tehran, Iran
| | - Mousa Sahebgharani
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, P.O. Box 13145-784, Tehran, Iran
| | - Amir Rashidian
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, P.O. Box 13145-784, Tehran, Iran.
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31
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Cocco M, Pellegrini C, Martínez-Banaclocha H, Giorgis M, Marini E, Costale A, Miglio G, Fornai M, Antonioli L, López-Castejón G, Tapia-Abellán A, Angosto D, Hafner-Bratkovič I, Regazzoni L, Blandizzi C, Pelegrín P, Bertinaria M. Development of an Acrylate Derivative Targeting the NLRP3 Inflammasome for the Treatment of Inflammatory Bowel Disease. J Med Chem 2017; 60:3656-3671. [PMID: 28410442 DOI: 10.1021/acs.jmedchem.6b01624] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Pharmacological inhibition of NLRP3 inflammasome activation may offer a new option in the treatment of inflammatory bowel disease. In this work, we report the design, synthesis, and biological screening of a series of acrylate derivatives as NLRP3 inhibitors. The in vitro determination of reactivity, cytotoxicity, NLRP3 ATPase inhibition, and antipyroptotic properties allowed the selection of 11 (INF39), a nontoxic, irreversible NLRP3 inhibitor able to decrease interleukin-1β release from macrophages. Bioluminescence resonance energy transfer experiments proved that this compound was able to directly interfere with NLRP3 activation in cells. In vivo studies confirmed the ability of the selected lead to alleviate the effects of colitis induced by 2,4-dinitrobenzenesulfonic acid in rats after oral administration.
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Affiliation(s)
- Mattia Cocco
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino , Via P. Giuria 9, 10125 Torino, Italy
| | - Carolina Pellegrini
- Department of Clinical and Experimental Medicine, University of Pisa , Via Roma 55, 56126 Pisa, Italy.,Faculty of Biology, Medicine and Health, The University of Manchester , R4.004 AV Hill Building, Oxford Road, Manchester, U.K
| | - Helios Martínez-Banaclocha
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), University Clinical Hospital "Virgen de la Arrixaca", University of Murcia , Carretera Buenavista s/n, 30120, El Palmar, Murcia, Spain
| | - Marta Giorgis
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino , Via P. Giuria 9, 10125 Torino, Italy
| | - Elisabetta Marini
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino , Via P. Giuria 9, 10125 Torino, Italy
| | - Annalisa Costale
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino , Via P. Giuria 9, 10125 Torino, Italy
| | - Gianluca Miglio
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino , Via P. Giuria 9, 10125 Torino, Italy
| | - Matteo Fornai
- Department of Clinical and Experimental Medicine, University of Pisa , Via Roma 55, 56126 Pisa, Italy
| | - Luca Antonioli
- Department of Clinical and Experimental Medicine, University of Pisa , Via Roma 55, 56126 Pisa, Italy
| | - Gloria López-Castejón
- Faculty of Biology, Medicine and Health, The University of Manchester , R4.004 AV Hill Building, Oxford Road, Manchester, U.K
| | - Ana Tapia-Abellán
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), University Clinical Hospital "Virgen de la Arrixaca", University of Murcia , Carretera Buenavista s/n, 30120, El Palmar, Murcia, Spain
| | - Diego Angosto
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), University Clinical Hospital "Virgen de la Arrixaca", University of Murcia , Carretera Buenavista s/n, 30120, El Palmar, Murcia, Spain
| | - Iva Hafner-Bratkovič
- Department of Synthetic Biology and Immunology, National Institute of Chemistry , Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Luca Regazzoni
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano , Via Mangiagalli 25, 20133 Milano, Italy
| | - Corrado Blandizzi
- Department of Clinical and Experimental Medicine, University of Pisa , Via Roma 55, 56126 Pisa, Italy
| | - Pablo Pelegrín
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), University Clinical Hospital "Virgen de la Arrixaca", University of Murcia , Carretera Buenavista s/n, 30120, El Palmar, Murcia, Spain
| | - Massimo Bertinaria
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino , Via P. Giuria 9, 10125 Torino, Italy
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