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Zhong Y, Tu Y, Ma Q, Chen L, Zhang W, Lu X, Yang S, Wang Z, Zhang L. Curcumin alleviates experimental colitis in mice by suppressing necroptosis of intestinal epithelial cells. Front Pharmacol 2023; 14:1170637. [PMID: 37089942 PMCID: PMC10119427 DOI: 10.3389/fphar.2023.1170637] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 03/30/2023] [Indexed: 04/25/2023] Open
Abstract
Curcumin, the primary bioactive substance in turmeric, exhibits potential therapeutic effects on ulcerative colitis. However, its mechanism for regulating necroptosis in colitis has not been fully elucidated. In this study, the effect of curcumin on experimental colitis-induced necroptosis of intestinal epithelial cells was investigated, and its molecular mechanism was further explored. We found that curcumin blocked necroptosis in a dose-dependent manner by inhibiting the phosphorylation of RIP3 and MLKL instead of RIP1 in HT-29 cells. Co-Immunoprecipitation assay showed that curcumin weakened the interaction between RIP1 and RIP3, possibly due to the direct binding of curcumin to RIP3 as suggested by drug affinity responsive target stability analysis. In a classical in vivo model of TNF-α and pan-caspase inhibitor-induced necroptosis in C57BL/6 mice, curcumin potently inhibited systemic inflammatory responses initiated by the necroptosis signaling pathway. Then, using a dextran sodium sulfate-induced colitis model in C57BL/6 mice, we found that curcumin inhibited the expression of p-RIP3 in the intestinal epithelium, reduced intestinal epithelial cells loss, improved the function of the intestinal tight junction barrier, and reduced local intestinal inflammation. Collectively, our findings suggest that curcumin is a potent targeted RIP3 inhibitor with anti-necroptotic and anti-inflammatory effects, maintains intestinal barrier function, and effectively alleviates colitis injury.
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Affiliation(s)
- Yuting Zhong
- Department of Pharmacy, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai, China
| | - Ye Tu
- Department of Pharmacy, Shanghai East Hospital, Tongji University, Shanghai, China
- Department of Critical Care Medicine, School of Anesthesiology, Naval Medical University, Shanghai, China
| | - Qingshan Ma
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Linlin Chen
- Department of Critical Care Medicine, School of Anesthesiology, Naval Medical University, Shanghai, China
| | - Wenzhao Zhang
- Department of Critical Care Medicine, School of Anesthesiology, Naval Medical University, Shanghai, China
| | - Xin Lu
- Department of Critical Care Medicine, School of Anesthesiology, Naval Medical University, Shanghai, China
| | - Shuo Yang
- Department of Critical Care Medicine, School of Anesthesiology, Naval Medical University, Shanghai, China
- *Correspondence: Lichao Zhang, ; Zhibin Wang, ; Shuo Yang,
| | - Zhibin Wang
- Department of Pharmacy, Shanghai East Hospital, Tongji University, Shanghai, China
- Department of Critical Care Medicine, School of Anesthesiology, Naval Medical University, Shanghai, China
- *Correspondence: Lichao Zhang, ; Zhibin Wang, ; Shuo Yang,
| | - Lichao Zhang
- Department of Pharmacy, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Lichao Zhang, ; Zhibin Wang, ; Shuo Yang,
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Pujara N, Wong KY, Qu Z, Wang R, Moniruzzaman M, Rewatkar P, Kumeria T, Ross BP, McGuckin M, Popat A. Oral Delivery of β-Lactoglobulin-Nanosphere-Encapsulated Resveratrol Alleviates Inflammation in Winnie Mice with Spontaneous Ulcerative Colitis. Mol Pharm 2020; 18:627-640. [PMID: 32437160 DOI: 10.1021/acs.molpharmaceut.0c00048] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Resveratrol (RES) is a nutraceutical with promising anti-inflammatory properties for the treatment of inflammatory bowel diseases (IBD). However, the clinical effectiveness of resveratrol as an oral anti-inflammatory agent is hindered by its extremely poor solubility and poor stability. In this study, we encapsulated resveratrol in β-lactoglobulin (BLG) nanospheres and systematically analyzed their formulation parameters in vitro followed by a thorough in vivo anti-inflammatory testing in a highly specialized spontaneous murine UC model (Winnie mice model). Complexation of resveratrol with BLG increased the aqueous solubility of resveratrol by ≈1.7 times with 10% w/w loading. Additionally, the in vitro dissolution of resveratrol from the particles was found to be higher compared to resveratrol alone, resulting in >90% resveratrol dissolution in ∼8 h. The anti-inflammatory activity of resveratrol was examined for the first time in Winnie mice, a mouse model that closely represents the clinical signs of IBD. At a 50 mg/kg oral dose for 2 weeks, BLG-RES significantly improved both % body weight and disease activity index (DAI), compared to free resveratrol in Winnie mice. Importantly, histological evaluations revealed a similar trend with striking improvement in the pathology of the colon via an increase in goblet cell numbers and recovery of colonic epithelium. BLG-RES significantly increased the expression level of cytokine interleukin-10 (Il10), which confirms the reduction in inflammation potentially because of the increased dissolution and stability of resveratrol by complexation with BLG. This comprehensive study demonstrates the effectiveness of biocompatible nanomaterials such as BLG in oral delivery of poorly soluble anti-inflammatory molecules such as resveratrol in the treatment of IBD.
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Affiliation(s)
- Naisarg Pujara
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Kuan Yau Wong
- Mucosal Diseases Group, Mater Research Institute, The University of Queensland, Translational Research Institute, 37 Kent Street, Woolloongabba, Queensland 4102, Australia
| | - Zhi Qu
- Mucosal Diseases Group, Mater Research Institute, The University of Queensland, Translational Research Institute, 37 Kent Street, Woolloongabba, Queensland 4102, Australia
| | - Ran Wang
- Mucosal Diseases Group, Mater Research Institute, The University of Queensland, Translational Research Institute, 37 Kent Street, Woolloongabba, Queensland 4102, Australia
| | - Md Moniruzzaman
- Mucosal Diseases Group, Mater Research Institute, The University of Queensland, Translational Research Institute, 37 Kent Street, Woolloongabba, Queensland 4102, Australia
| | - Prarthana Rewatkar
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Tushar Kumeria
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Benjamin P Ross
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Michael McGuckin
- Mucosal Diseases Group, Mater Research Institute, The University of Queensland, Translational Research Institute, 37 Kent Street, Woolloongabba, Queensland 4102, Australia.,Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Amirali Popat
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4072, Australia.,Mucosal Diseases Group, Mater Research Institute, The University of Queensland, Translational Research Institute, 37 Kent Street, Woolloongabba, Queensland 4102, Australia
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Treatment with a Zinc Metalloprotease Purified from Bothrops moojeni Snake Venom (BmooMP-Alpha-I) Reduces the Inflammation in an Experimental Model of Dextran Sulfate Sodium-Induced Colitis. Mediators Inflamm 2019; 2019:5195134. [PMID: 31467484 PMCID: PMC6701296 DOI: 10.1155/2019/5195134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 03/05/2019] [Accepted: 05/14/2019] [Indexed: 12/11/2022] Open
Abstract
It has been described that the metalloprotease BmooMP-alpha-I purified from Bothrops moojeni snake venom is able to hydrolyze the TNF molecule. However, this observation has been based mainly on in vitro investigation, in addition to molecular modeling and docking approaches. Considering that there is no in vivo study to demonstrate the biological effects of this enzyme, the major aim to the present work was to investigate whether the BmooMP-alpha-I has any anti-inflammatory efficacy by setting up a murine experimental design of colitis induced by dextran sulfate sodium (DSS). For this purpose, C57BL/6 mice were divided into six groups, as follows: (i) animals without intestinal inflammation, (ii) animals without intestinal inflammation treated with BmooMP-alpha-I (50 μg/animal/day), and (iii) animals with intestinal inflammation induced by 3% of DSS, (iv) mice with intestinal inflammation induced by DSS and treated with BmooMP-alpha-I enzyme at the 50, 25, or 12.5 μg/animal/day dosages by intraperitoneal route. Clinical signs of colitis were observed daily for calculating the morbidity scores, cytokine measurements, and histological features. We observed that the animals treated with different doses of the enzyme presented a remarkable improvement of colitis signs, as confirmed by a significant increase of the intestine length in comparison to the DSS group. Also, no difference was observed between the groups treated with the enzyme or vehicle, as the colon length of these animals was slightly lower than that of the group of healthy animals, without induction of intestinal inflammation. The cytokine quantification in supernatants of intestinal tissue homogenates showed a significant reduction of 38% in IFN-gamma levels, when the animals were treated with 50 μg of the BmooMP-alpha-I compared to the animals receiving DSS only. A significant reduction of 39% in TNF levels was also observed in all doses of treatment with BmooMP-alpha-I, in addition to a significant reduction of 35% in the amount of IL-12p40. Histological examinations revealed that the BmooMP-alpha-I 50 μg treated group preserved colon architecture and goblet cells and reduced the ulcer area, when compared with DSS mice, which showed typical inflammatory changes in tissue architecture, such as ulceration, crypt dilation, loss of tissue architecture, and goblet cell depletion, accompanied by a significant cell infiltration. In conclusion, our results suggest that the improvement of clinical scores and histological findings related to BmooMP-alpha-I treatment in this experimental model could be attributed to the metalloprotease ability to modulate cytokine production locally at the inflamed intestine. These findings highlight the potential anti-inflammatory role and effectiveness of this enzyme as a therapeutic alternative in this type of immunopathological condition.
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Miao X, Sun X, Li Q, Cui L, Wang X, Zhuang G, Deng T. Pectic polysaccharides extracted from
Rauvolfia verticillata
(Lour.) Baill. var. hainanensis Tsiang ameliorate ulcerative colitis via regulating the
MAPK
s and
NF
‐κB pathways in dendritic cells. Clin Exp Pharmacol Physiol 2018; 46:48-55. [PMID: 30144315 DOI: 10.1111/1440-1681.13026] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 07/30/2018] [Accepted: 08/08/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Xin‐Pu Miao
- Department of Gastroenterology Hainan Provincial People's Hospital Haikou City Hainan Province China
- School of Clinical Medicine Hainan Medical College Haikou City Hainan Province China
| | - Xiao‐Ning Sun
- Department of Gastroenterology Hainan Provincial People's Hospital Haikou City Hainan Province China
| | - Qiong‐Si Li
- Department of Gastroenterology The First Affiliated Hospital of Hainan Medical College Haikou City Hainan Province China
| | - Lu‐Jia Cui
- Department of Gastroenterology Hainan Provincial People's Hospital Haikou City Hainan Province China
| | - Xuan‐Yu Wang
- Department of Gastroenterology Hainan Provincial People's Hospital Haikou City Hainan Province China
| | - Gui‐Feng Zhuang
- Department of Gastroenterology The First Affiliated Hospital of Hainan Medical College Haikou City Hainan Province China
| | - Tao‐Zhi Deng
- Department of Gastroenterology Hainan Provincial People's Hospital Haikou City Hainan Province China
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A New Chinese Medicine Intestine Formula Greatly Improves the Effect of Aminosalicylate on Ulcerative Colitis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:7323129. [PMID: 29358969 PMCID: PMC5735632 DOI: 10.1155/2017/7323129] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 08/13/2017] [Accepted: 08/29/2017] [Indexed: 12/21/2022]
Abstract
Ulcerative colitis (UC) is a chronic lifelong inflammatory disorder of the colon. Current medical treatment of UC relies predominantly on the use of traditional drugs, including aminosalicylates, corticosteroids, and immunosuppressants, which failed to effectively control this disease's progression and produced various side effects. Here, we report a new Chinese medicine intestine formula (CIF) which greatly improved the effect of mesalazine, an aminosalicylate, on UC. In the present study, 60 patients with chronic UC were treated with oral mesalazine alone or in combination with CIF enema. The combination of mesalazine and CIF greatly and significantly improved the clinical symptoms and colon mucosal condition and improved the Mayo Clinic Disease Activity Index and health-related quality of life, when compared to mesalazine alone. In particular, the addition of CIF further decreased serum levels of tumor necrosis factor-alpha and hypersensitivity C-reactive protein but in contrast increased interleukin-4. Thus, the results demonstrate the beneficial role of CIF in UC treatment, which may be mediated by the regulation of inflammation.
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Essential turmeric oils enhance anti-inflammatory efficacy of curcumin in dextran sulfate sodium-induced colitis. Sci Rep 2017; 7:814. [PMID: 28400554 PMCID: PMC5429743 DOI: 10.1038/s41598-017-00812-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 03/16/2017] [Indexed: 01/27/2023] Open
Abstract
Turmeric has been used as a medicinal herb for thousands of years for treatment of various disorders. Although curcumin is the most studied active constituents of turmeric, accumulating evidence suggests that other components of turmeric have additional anti-inflammatory and anti-tumorigenic properties. Herein, we investigated anti-inflammatory efficacy and associated gene expression alterations of a specific, curcumin preparation containing essential turmeric oils (ETO-curcumin) in comparison to standard curcumin at three specific doses (0, 5, 25 or 50 mg/kg), in an animal model of dextran sodium sulfate (DSS)-induced colitis. The present study showed that both ETO and standard curcumin treatments provided protection against DSS-induced inflammation. However, ETO-curcumin improved disease activity index (DAI) dose-dependently, while the anti-inflammatory efficacy of standard curcumin remained constant, suggesting that ETO-curcumin may provide superior anti-inflammatory efficacy compared to standard curcumin. Gene expression analysis revealed that anti-inflammatory cytokines including IL-10 and IL-11 as well as FOXP3 were upregulated in the colon by ETO-curcumin. Collectively, these findings suggest that the combined treatment of curcumin and essential turmeric oils provides superior protection from DSS-induced colitis than curcumin alone, highlighting the anti-inflammatory potential of turmeric.
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Suppressive effect of pectic polysaccharides extracted from Rauwolfia verticillata (Lour.) Baill.var.hainanensis Tsiang on inflammation by regulation of NF– κ B pathway and interleukin–17 in mice with dextran sulphatesodium–induced ulcerative colitis. ASIAN PAC J TROP MED 2015; 8:147-52. [DOI: 10.1016/s1995-7645(14)60306-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Revised: 12/20/2014] [Accepted: 01/15/2015] [Indexed: 11/23/2022] Open
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Liu L, Liu YL, Liu GX, Chen X, Yang K, Yang YX, Xie Q, Gan HK, Huang XL, Gan HT. Curcumin ameliorates dextran sulfate sodium-induced experimental colitis by blocking STAT3 signaling pathway. Int Immunopharmacol 2013; 17:314-20. [PMID: 23856612 DOI: 10.1016/j.intimp.2013.06.020] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 05/30/2013] [Accepted: 06/18/2013] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Although a series of studies have shown that curcumin can exert anti-inflammatory effects in colitis by inhibiting NF-κB activation, whether these anti-inflammatory effects of curcumin are also attributed to its ability to inhibiting STAT3 pathway has never been tested in experimental colitis to date. The purpose of the study was to investigate whether curcumin could exert its therapeutic effects in experimental colitis by inhibiting STAT3 pathway. MATERIALS AND METHODS Curcumin was administered in experimental colitis induced by dextran sulfate sodium (DSS). The disease activity index (DAI) and histological score were observed. The phospho-STAT3 was assessed by western blot analysis. The DNA-binding activity of STAT3 dimers was evaluated by electrophoretic mobility shift assay (EMSA). The expression of tumor necrosis factor (TNF)-α and interleukin (IL)-1β was measured by enzyme-linked immunosorbent assay. Myeloperoxidase (MPO) activity was determined by using MPO assay kit. RESULTS A significant improvement was observed in DAI and histological score in mice with curcumin, and the increases in phospho-STAT3 activity, DNA-binding activity of STAT3 dimers, MPO activity, IL-1β, and TNF-α expression in mice with DSS-induced colitis were significantly reduced following treatment with curcumin. CONCLUSION Curcumin exerts beneficial effects in experimental colitis by the suppression of STAT3 pathway, which may therefore provide a better understanding of the mechanism of action for curcumin in treating colitis.
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Affiliation(s)
- Liu Liu
- Department of Gastroenterology and Geriatrics Medicine, Sichuan University, Chengdu, Sichuan, China
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Gibson GR, Probert HM, Loo JV, Rastall RA, Roberfroid MB. Dietary modulation of the human colonic microbiota: updating the concept of prebiotics. Nutr Res Rev 2012; 17:259-75. [PMID: 19079930 DOI: 10.1079/nrr200479] [Citation(s) in RCA: 1322] [Impact Index Per Article: 110.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Prebiotics are non-digestible (by the host) food ingredients that have a beneficial effect through their selective metabolism in the intestinal tract. Key to this is the specificity of microbial changes. The present paper reviews the concept in terms of three criteria: (a) resistance to gastric acidity, hydrolysis by mammalian enzymes and gastrointestinal absorption; (b) fermentation by intestinal microflora; (c) selective stimulation of the growth and/or activity of intestinal bacteria associated with health and wellbeing. The conclusion is that prebiotics that currently fulfil these three criteria are fructo-oligosaccharides, galacto-oligosaccharides and lactulose, although promise does exist with several other dietary carbohydrates. Given the range of food vehicles that may be fortified by prebiotics, their ability to confer positive microflora changes and the health aspects that may accrue, it is important that robust technologies to assay functionality are used. This would include a molecular-based approach to determine flora changes. The future use of prebiotics may allow species-level changes in the microbiota, an extrapolation into genera other than the bifidobacteria and lactobacilli, and allow preferential use in disease-prone areas of the body.
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Affiliation(s)
- Glenn R Gibson
- Food Microbial Sciences Unit, School of Food Biosciences, The University of Reading, Reading, UK
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Liu DY, Guan YM, Zhao HM, Yan DM, Tong WT, Wan PT, Zhu WF, Liu HN, Liang XL. The protective and healing effects of Si Shen Wan in trinitrobenzene sulphonic acid-induced colitis. JOURNAL OF ETHNOPHARMACOLOGY 2012; 143:435-440. [PMID: 22751005 DOI: 10.1016/j.jep.2012.05.060] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2011] [Revised: 02/22/2012] [Accepted: 05/29/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Si Shen Wan is a traditional Chinese herbal medicine formula for the treatment of diseases with diarrhea, such as ulcerative colitis, allergic colitis and chronic colitis. To investigate the protective and healing effects of Si Shen Wan in the experimental colitis induced by trinitrobenzene sulphonic acid, and to furture explore its mechanism of action. MATERIALS AND METHODS Rats with colitis treated with Si Shen Wan for 10 days. Colon wet weight, colon organ coefficient, colonic damage score and pathological change after trinitrobenzene sulphonic acid challenge were determined. The levels of MPO, MDA, GSH-PX, SOD and the expression of IL-4 and IL-10 mRNA in the colon were also measured. RESULTS After treatment, colon wet weight, colon organ coefficient and colonic damage score were lower than that in the control group (p<0.05). MDA and MPO concentrations in the inflamed colonic tissues were decreased remarkably in the treated groups compared with that in the control group (p<0.05). But SOD level, IL-4 and IL-10 mRNA expression in the inflamed colonic tissues were obviously increased. CONCLUSIONS It is a potential path that protective effect of Si Shen Wan on impaired colonic mucosa rats with experimental colitis was accomplished by down-regulating the level of MDA and MPO, and up-regulating the level of SOD and the IL-4 and IL-10 mRNA expression in the colon mucosa.
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Affiliation(s)
- Duan-yong Liu
- JiangXi University of Traditional Chinese Medicine, NanChang, 330004 JiangXi Province, China
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Parthenolide, an inhibitor of the nuclear factor-κB pathway, ameliorates dextran sulfate sodium-induced colitis in mice. Int Immunopharmacol 2011; 12:169-74. [PMID: 22155740 DOI: 10.1016/j.intimp.2011.11.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Revised: 11/10/2011] [Accepted: 11/22/2011] [Indexed: 02/05/2023]
Abstract
BACKGROUND Activation of nuclear factor-kappa B (NF-κB), which controls transcription of various pro-inflammatory cytokine genes, has been shown to play a critical role in the pathogenesis of ulcerative colitis (UC). Parthenolide, a sesquiterpene lactone compound isolated from extracts of the herb Feverfew (Tanacetum parthenium), has been demonstrated to be a potent inhibitor of NF-κB activation. This study was designed to investigate the effects of parthenolide on an experimental murine colitis model. MATERIALS AND METHODS Experimental colitis was induced by dextran sulfate sodium (DSS), and mice were divided into 3 groups: normal control, DSS+saline, and DSS+parthenolide. The disease activity index (DAI) and histological score were observed. The tumor necrosis factor (TNF)-α and interleukin (IL)-1β levels were measured by enzyme-linked immunosorbent assay. Phospho-IκBα, IκBα and phospho-NF-κB p65 expression were assessed by western blot analysis. Myeloperoxidase (MPO) activity was determined by using MPO assay kit. RESULTS Administration of parthenolide significantly reduced the severity of DSS-induced colitis as assessed by DAI and histological score, and resulted in downregulation of MPO activity and phospho-NF-κB p65 expression by the blockade of phosphorylation and subsequent degradation of IκB protein, strikingly reduced the production of TNF-α and IL-1β. CONCLUSION Parthenolide exerts beneficial effects in experimental colitis and may therefore provide a useful therapeutic approach for the treatment of UC.
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Hegazy SK, El-Bedewy MM. Effect of probiotics on pro-inflammatory cytokines and NF-kappaB activation in ulcerative colitis. World J Gastroenterol 2010. [PMID: 20806430 DOI: 10.3748/wjg.] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/29/2022] Open
Abstract
AIM To demonstrate the therapeutic effect of probiotics in patients with ulcerative colitis (UC), and their effect on inflammatory mediators and nuclear factor (NF)-kappaB activation in these patients. METHODS Thirty patients with mild to moderate UC were randomly classified into two groups: sulfasalazine group, who received sulfasalazine 2400 mg/d; and probiotic group, who received sulfasalazine 2400 mg/d with probiotic. The patients were investigated before and after 8 wk of treatment with probiotic (Lactobacillus delbruekii and Lactobacillus fermentum). Colonic activity of myeloperoxidase (MPO) was assayed with UV spectrophotometry, the colonic content of interleukin (IL)-6 was determined by enzyme-linked immunosorbent assay (ELISA), fecal calprotectin was determined by ELISA, and expression of NF-kappaB p65 and tumor necrosis factor (TNF)-alpha proteins in colonic tissue was identified by immunohistochemistry and reverse transcription polymerase chain reaction, respectively. RESULTS At the start of the study, colonic mucosal injury and inflammation were demonstrated in UC patients by hematoxylin and eosin staining, and an increase in colonic MPO activity, fecal calprotectin, and expression of colonic TNF-alpha and NF-kappaB p65 proteins. The use of probiotic for 8 wk significantly ameliorated the inflammation by decreasing the colonic concentration of IL-6, expression of TNF-alpha and NF-kappaB p65, leukocyte recruitment, as demonstrated by a decrease in colonic MPO activity, and the level of fecal calprotectin compared to sulfasalazine group and the control group (P < 0.05). CONCLUSION Oral supplementation with probiotics could be helpful in maintaining remission and preventing relapse of UC.
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Affiliation(s)
- Sahar K Hegazy
- Department of Clinical Pharmacy, Faculty of Pharmacy, Tanta University, Tanta 8130, Egypt.
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Yao J, Wang JY, Liu L, Li YX, Xun AY, Zeng WS, Jia CH, Wei XX, Feng JL, Zhao L, Wang LS. Anti-oxidant effects of resveratrol on mice with DSS-induced ulcerative colitis. Arch Med Res 2010; 41:288-94. [PMID: 20637373 DOI: 10.1016/j.arcmed.2010.05.002] [Citation(s) in RCA: 168] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2009] [Accepted: 04/27/2010] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS Oxidant/antioxidant balance is suggested to be an important factor for the recurrence and progression of ulcerative colitis (UC). The aim of the study is to investigate the potential protective role of resveratrol (Res) against dextran sodium sulfate (DSS)-induced oxidative damage in colon of mice with UC. METHODS UC was induced in mice by oral administration of synthetic DSS (molecular weight 5000) for 7 days. Mice were divided into normal group, colitis control group, low-dose Res-treated group (RLD-treated group), and high-dose Res-treated group (RHD-treated group). Inhibitory effects of concomitant treatment with Res were assessed daily using a Disease Activity Index (DAI) and severity of histological changes. MDA, MPO, SOD and GSH-PX activity of colonic tissue were determined in colon samples by chemical colorimetry. TNF-alpha, IL-8, IFN-gamma, p22(phox) and gp91(phox) expression levels were detected using quantitative reverse-transcriptase polymerase chain reaction (qRT-PCR), ELISA, and Western blot analysis. RESULT Administration of Res significantly inhibited the severity of UC compared to the colitis control group. Colonic tissue MDA and MPO activities decreased significantly in Res-treated groups compared to colitis control groups. Furthermore, colonic tissue SOD and GSH-Px activities increased significantly in Res-treated groups compared to colitis control groups. The expression levels of TNF-alpha, IL-8, IFN-gamma, p22(phox), and gp91(phox) also decreased significantly in the Res-treated group compared to the colitis control group. CONCLUSIONS Oral administration of Res exerts marked inhibitory effects on UC in mice. Resveratrol may play an important role in preventing DSS-induced oxidative damage.
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Affiliation(s)
- Jun Yao
- Department of Gastroenterology, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen, Guangdong Province, China
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Hegazy SK, El-Bedewy MM. Effect of probiotics on pro-inflammatory cytokines and NF-κB activation in ulcerative colitis. World J Gastroenterol 2010; 16:4145-51. [PMID: 20806430 PMCID: PMC2932917 DOI: 10.3748/wjg.v16.i33.4145] [Citation(s) in RCA: 183] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To demonstrate the therapeutic effect of probiotics in patients with ulcerative colitis (UC), and their effect on inflammatory mediators and nuclear factor (NF)-κB activation in these patients.
METHODS: Thirty patients with mild to moderate UC were randomly classified into two groups: sulfasalazine group, who received sulfasalazine 2400 mg/d; and probiotic group, who received sulfasalazine 2400 mg/d with probiotic. The patients were investigated before and after 8 wk of treatment with probiotic (Lactobacillus delbruekii and Lactobacillus fermentum). Colonic activity of myeloperoxidase (MPO) was assayed with UV spectrophotometry, the colonic content of interleukin (IL)-6 was determined by enzyme-linked immunosorbent assay (ELISA), fecal calprotectin was determined by ELISA, and expression of NF-κB p65 and tumor necrosis factor (TNF)-α proteins in colonic tissue was identified by immunohistochemistry and reverse transcription polymerase chain reaction, respectively.
RESULTS: At the start of the study, colonic mucosal injury and inflammation were demonstrated in UC patients by hematoxylin and eosin staining, and an increase in colonic MPO activity, fecal calprotectin, and expression of colonic TNF-α and NF-κB p65 proteins. The use of probiotic for 8 wk significantly ameliorated the inflammation by decreasing the colonic concentration of IL-6, expression of TNF-α and NF-κB p65, leukocyte recruitment, as demonstrated by a decrease in colonic MPO activity, and the level of fecal calprotectin compared to sulfasalazine group and the control group (P < 0.05).
CONCLUSION: Oral supplementation with probiotics could be helpful in maintaining remission and preventing relapse of UC.
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Tetrandrine ameliorates dextran-sulfate-sodium-induced colitis in mice through inhibition of nuclear factor -kappaB activation. Int J Colorectal Dis 2009; 24:5-12. [PMID: 18685855 DOI: 10.1007/s00384-008-0544-7] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/16/2008] [Indexed: 02/08/2023]
Abstract
BACKGROUND Activation of nuclear factor (NF)-kappaB has been shown to play a critical role in the pathogenesis of ulcerative colitis (UC), and tetrandrine, a bisbenzylisoquinoline alkaloid isolated from the Chinese herb Radix Stephania tetrandra, has been demonstrated to be a potent inhibitor of NF-kappaB activation. The purpose of the study was to investigate effects of tetrandrine on experimental model of UC. MATERIALS AND METHODS Tetrandrine was administered in experimental colitis induced by dextran sulfate sodium (DSS). The disease activity index (DAI) and histological score were observed. NF-kappaB DNA binding activity was assessed by electrophoretic mobility shift assay. The expression of tumor necrosis factor (TNF)-alpha and interleukin (IL)-1beta were measured by reverse transcription-polymerase chain reaction and enzyme-linked immunosorbent assay. RESULTS A significant improvement was observed in DAI and histological score in mice with tetrandrine, and the increase in NF-kappaB DNA binding activity, myeloperoxidase activity, IL-1beta, and TNF-alpha in mice with DSS-induced colitis was significantly reduced following administration of tetrandrine. CONCLUSION The administration of tetrandrine leads to an amelioration of DSS-induced colitis, suggesting administration of tetrandrine may provide a therapeutic approach for UC.
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Li Z, Zhang DK, Yi WQ, Ouyang Q, Chen YQ, Gan HT. NF-kappaB p65 antisense oligonucleotides may serve as a novel molecular approach for the treatment of patients with ulcerative colitis. Arch Med Res 2008; 39:729-34. [PMID: 18996285 DOI: 10.1016/j.arcmed.2008.08.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2008] [Accepted: 08/04/2008] [Indexed: 02/05/2023]
Abstract
BACKGROUND Activation of nuclear factor-kappa B (NF-kappaB), which controls transcription of various proinflammatory cytokine genes, has been shown to play a critical role in the pathogenesis of ulcerative colitis (UC). The aim of this study was to investigate if NF-kappaB p65 antisense oligonucleotides may affect the expression of NF-kappaB p65 and cytokines in lamina propria mononuclear cells (LPMCs) from patients with UC. METHODS LPMCs, which were isolated from intestinal mucosal biopsy specimens from patients with UC, were cultured with or without NF-kappaB p65 antisense oligonucleotides, missense oligonucleotides and dexamethasone. NF-kappaB p65 expression was determined by Western blot analysis. The expression of cytokine mRNA was studied by reverse transcription-polymerase chain reaction (RT-PCR). Cytokine levels were measured by enzyme-linked immunosorbent assay. RESULTS NF-kappaB p65 antisense oligonucleotides resulted in downregulation of NF-kappaB p65 expression, blocked the expression of IL-1beta mRNA and IL-8 mRNA, and strikingly reduced the production of IL-1beta and IL-8. These effects were greater than those of dexamethasone in cultured LPMCs from patients with UC (p <0.05). CONCLUSIONS Application of NF-kappaB p65 antisense oligonucleotides may serve as a novel molecular approach for the treatment of patients with UC.
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Affiliation(s)
- Zhi Li
- Department of Gastroenterology and Geriatric Medicine West China Hospital, Sichuan University, Chengdu, China
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Bhonde MR, Gupte RD, Dadarkar SD, Jadhav MG, Tannu AA, Bhatt P, Bhatia DR, Desai NK, Deore V, Yewalkar N, Vishwakarma RA, Sharma S, Kumar S, Dagia NM. A novel mTOR inhibitor is efficacious in a murine model of colitis. Am J Physiol Gastrointest Liver Physiol 2008; 295:G1237-45. [PMID: 18927209 DOI: 10.1152/ajpgi.90537.2008] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Ulcerative colitis is an autoimmune-inflammatory disease characterized by increased proliferation of colonic epithelial cells, dysregulation of signal transduction pathways, elevated mucosal T cell activation, increased production of proinflammatory cytokines, and enhanced leukocyte infiltration into colonic interstitium. Several compounds that possess antiproliferative properties and/or inhibit cytokine production exhibit a therapeutic effect in murine models of colitis. Mammalian target of rapamycin (mTOR), a protein kinase regulating cell proliferation, is implicated in colon carcinogenesis. In this study, we report that a novel haloacyl aminopyridine-based molecule (P2281) is a mTOR inhibitor and is efficacious in a murine model of human colitis. In vitro studies using Western blot analysis and cell-based ELISA assays showed that P2281 inhibits mTOR activity in colon cancer cells. In vitro and in vivo assays of proinflammatory cytokine production revealed that P2281 diminishes induced IFN-gamma production but not TNF-alpha production, indicating preferential inhibitory effects of P2281 on T cell function. In the dextran sulfate sodium (DSS) model of colitis, 1) macroscopic colon observations demonstrated that P2281 significantly inhibited DSS-induced weight loss, improved rectal bleeding index, decreased disease activity index, and reversed DSS-induced shortening of the colon; 2) histological analyses of colonic tissues revealed that P2281 distinctly attenuated DSS-induced edema, prominently diminished the leukocyte infiltration in the colonic mucosa, and resulted in protection against DSS-induced crypt damage; and 3) Western blot analysis showed that P2281 blocks DSS-induced activation of mTOR. Collectively, these results provide direct evidence that P2281, a novel mTOR inhibitor, suppresses DSS-induced colitis by inhibiting T cell function and is a potential therapeutic for colitis. Given that compounds with anticancer activity show promising anti-inflammatory efficacy, our findings reinforce the cross-therapeutic functionality of potential drugs.
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Affiliation(s)
- Mandar R Bhonde
- Dept. of Pharmacology, Piramal Life Sciences Limited, 1 Nirlon Complex, Off Western Express Highway, Goregaon (East Mumbai - 400063, Maharashtra, India. )
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Nagy F, Molnár T, Szepes Z, Farkas K, Nyári T, Lonovics J. Efficacy of 6-mercaptopurine treatment after azathioprine hypersensitivity in inflammatory bowel disease. World J Gastroenterol 2008; 14:4342-6. [PMID: 18666323 PMCID: PMC2731186 DOI: 10.3748/wjg.14.4342] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the efficacy of 6-mercaptopurine (6-MP) in cases of azathioprine (AZA) hypersensitivity in patients with inflammatory bowel disease.
METHODS: Twenty nine previously confirmed Crohn’s disease (CD) (n = 14) and ulcerative colitis (UC) (n = 15) patients with a known previous (AZA) hypersensitivity reaction were studied prospectively. The 6-MP doses were gradually increased from 0.5 up to 1.0-1.5 mg/kg per day. Clinical activity indices (CDAI/CAI), laboratory variables and daily doses of oral 5-ASA, corticosteroids, and 6-MP were assessed before and in the first, sixth and twelfth months of treatment.
RESULTS: In 9 patients, 6-MP was withdrawn in the first 2 wk due to an early hypersensitivity reaction. Medication was ineffective within 6 mo in 6 CD patients, and myelotoxic reaction was observed in two. Data were evaluated at the end of the sixth month in 12 (8 UC, 4 CD) patients, and after the first year in 9 (6 UC, 3 CD) patients. CDAI decreased transiently at the end of the sixth month, but no significant changes were observed in the CDAI or the CAI values at the end of the year. Leukocyte counts (P = 0.01), CRP (P = 0.02), and serum iron (P = 0.05) values indicated decreased inflammatory reactions, especially in the UC patients at the end of the year, making the possibility to taper oral steroid doses.
CONCLUSION: About one-third of the previously AZA-intolerant patients showed adverse effects on taking 6MP. In our series, 20 patients tolerated 6MP, but it was ineffective in 8 CD cases, and valuable mainly in ulcerative colitis patients.
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Steele SR. Operative management of Crohn's disease of the colon including anorectal disease. Surg Clin North Am 2007; 87:611-31. [PMID: 17560415 DOI: 10.1016/j.suc.2007.03.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Evaluation and management of the patient who has Crohn's disease of the colon, rectum, and anus is challenging for even the most experienced provider. Because of its broad spectrum of presentation, recurrent nature, and potential for high morbidity, the surgeon needs to not only treat the acute situation but also keep in mind the potential long-term ramifications. Although there are exciting new medications and treatment modalities yielding promising results, surgery continues to remain at the forefront for the care of these patients. This article reviews various surgical options for the patient who has Crohn's disease of the colon, rectum, and perianal region with emphasis on symptomatic resolution and optimization of function.
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Affiliation(s)
- Scott R Steele
- Colon & Rectal Surgery, Department of Surgery, Madigan Army Medical Center, Fort Lewis, WA 98431, USA.
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Ando T, Watanabe O, Furuta R, Maeda O, Nishio Y, Nishiwaki T, Ina K, Kusugami K, Goto H. Predictors of a response to cyclosporine or leukocyte removal therapy in patients with refractory ulcerative colitis. Dig Endosc 2005. [DOI: 10.1111/j.1443-1661.2005.00494.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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