201
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Lu Y, Li L, Zhang JW, Zhong XQ, Wei JA, Han L. Total polysaccharides of the Sijunzi decoction attenuate tumor necrosis factor-α-induced damage to the barrier function of a Caco-2 cell monolayer via the nuclear factor-κB-myosin light chain kinase-myosin light chain pathway. World J Gastroenterol 2018; 24:2867-2877. [PMID: 30018481 PMCID: PMC6048434 DOI: 10.3748/wjg.v24.i26.2867] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 05/25/2018] [Accepted: 06/09/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To explore the protective effects and underlying mechanisms of total polysaccharides of the Sijunzi decoction (TPSJ) on the epithelial barriers in vitro.
METHODS Caco-2 cell monolayers were treated with or without TPSJ in the presence or absence of TNF-α, and paracellular permeability and transepithelial electrical resistance (TEER) were measured to evaluate the epithelial barrier function. Immunofluorescence and western blotting were respectively used to evaluate the distribution and expression of the tight junction proteins claudin 1, claudin 2, zo3, and occludin in Caco-2 cells. Western blotting was also used to evaluate the cellular expression of myosin light chain (MLC), phosphorylated MLC (pMLC), MLC kinase (MLCK), and nuclear factor (NF)-κB p65.
RESULTS TPSJ promoted the proliferation of Caco-2 cells and inhibited TNF-α-induced secretion of pro-inflammatory cytokines. Furthermore, TPSJ significantly ameliorated both the reduction of TEER and the increased paracellular permeability observed in tumor necrosis factor (TNF)-α-damaged Caco-2 monolayers. Furthermore, TPSJ remarkably attenuated TNF-α-induced morphological changes, downregulated the expression of claudin 1, claudin 2, zo3, and occludin, and markedly suppressed TNF-α-mediated upregulation of p-MLC and MLCK expression. Finally, TPSJ inhibited the activation and expression of NF-κB p65.
CONCLUSION Our results demonstrate that TPSJ alleviates the TNF-α-induced impairment of the intestinal epithelial cell barrier function by suppressing NF-κB p65-mediated phosphorylation of MLCK and MLC.
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Affiliation(s)
- Yue Lu
- The Second Clinical College (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
| | - Leng Li
- The Second Clinical College (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
| | - Jin-Wei Zhang
- The Second Clinical College (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
| | - Xiao-Qin Zhong
- The Second Clinical College (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
| | - Jian-An Wei
- The Second Clinical College (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
| | - Ling Han
- The Second Clinical College (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
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202
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Jung JI, Kim SY, Park KY, Sydara K, Lee SW, Kim SA, Kim J. In vitro combinatorial anti-proliferative and immunosuppressive effects of Brucea javanica extract with CX-4945 and imatinib in human T-cell acute lymphoblastic leukemia cells. Biomed Pharmacother 2018; 106:403-410. [PMID: 29966986 DOI: 10.1016/j.biopha.2018.06.164] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 06/25/2018] [Accepted: 06/27/2018] [Indexed: 11/15/2022] Open
Abstract
Since 1970, the isolated and identified components of Brucea javanica (L.) Merr. have been known to contain anticancer effects, particularly antileukemic effect. In this study, the inhibitory effect of Brucea javanica (BJ) on cell growth and inflammation was confirmed in human T-cell acute lymphocytic leukemia (T-ALL) cells, and its efficacy as an antileukemic agent was verified. Our results showed that BJ extract induced caspase-dependent apoptosis of T-ALL Jurkat cells through inhibition of the CK2-mediated signaling pathway, while exerting no significant cytotoxicity in normal peripheral blood mononuclear cells. Moreover, BJ extract suppressed the NF-κB signaling pathway, thus, inhibiting the interleukin (IL)-2 expression induced by phorbol 12-myristate 13-acetate (PMA) and phytohemagglutinin (PHA). Notably, combined treatment with BJ extract plus CX-4945 or imatinib exerted enhanced inhibitory effects on T-ALL cell growth and IL-2 production. Overall, these results suggest that BJ extract can be a potent therapeutic herbal agent for T-ALL treatment and prevention of IL-2 mediated inflammatory immune responses.
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Affiliation(s)
- Jung-Il Jung
- Department of Biomedical Laboratory Science, School of Medicine, Eulji University, Daejeon 34824, Republic of Korea.
| | - Se Young Kim
- Department of Biomedical Laboratory Science, School of Medicine, Eulji University, Daejeon 34824, Republic of Korea.
| | - Kyeong-Yong Park
- Department of Integrated Material's Development, CHA Meditech Co., Ltd, Daejeon 34025, Republic of Korea.
| | - Kongmany Sydara
- Institute of Traditional Medicine, Ministry of Health, Vientiane Capital, Lao People's Democratic Republic.
| | - Sang Woo Lee
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea.
| | - Soon Ae Kim
- Department of Pharmacology, School of Medicine, Eulji University, Daejeon 34824, Republic of Korea.
| | - Jiyeon Kim
- Department of Biomedical Laboratory Science, School of Medicine, Eulji University, Daejeon 34824, Republic of Korea.
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203
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Wang Z, Wu X, Wang CL, Wang L, Sun C, Zhang DB, Liu JL, Liang YN, Tang DX, Tang ZS. Tryptanthrin Protects Mice against Dextran Sulfate Sodium-Induced Colitis through Inhibition of TNF-α/NF-κB and IL-6/STAT3 Pathways. Molecules 2018; 23:molecules23051062. [PMID: 29724065 PMCID: PMC6099556 DOI: 10.3390/molecules23051062] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 04/27/2018] [Accepted: 04/27/2018] [Indexed: 12/13/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a notable health problem and may considerably affect the quality of human life. Previously, the protective roles of tryptanthrin (TRYP) against dextran sulfate sodium (DSS) induced colitis has been proved, but the concrete mechanism remained elusive. It has been suggested that TRYP could diminish the weight loss and improve the health conditions of mice with DSS induced colitis. Hematoxylin and eosin staining revealed that TRYP could improve the histopathological structure of the colon tissue. Two signaling pathways (TNF-α/NF-κBp65 and IL-6/STAT3) were investigated using immunochemistry and western blot. The detected concentrations of the two cytokines TNF-α and IL-6 showed that their levels decreased after TRYP treatment of the colitis. The protein expression level of NF-κBp65 in cytoplasm increased after TRYP treatment of the induced colitis. However, the protein level of NF-κBp65 in the nucleus decreased after administration of TRYP. The expression level of IκBα, the inhibitory protein of NF-κBp65, was tested and the results suggested that TRYP could inhibit the degradation of IκBα. The phosphorylation level of STAT3 was inhibited by TRYP and the expression level of STAT3 and p-STAT3 decreased after administration of TRYP. We conclude that TRYP improves the health condition of mice with DSS induced colitis by regulating the TNF-α/NF-κBp65 and IL-6/STAT3 signaling pathways via inhibiting the degradation of IκBα and the phosphorylation of STAT3.
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Affiliation(s)
- Zheng Wang
- Shaanxi Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Shaanxi University of Chinese Medicine, Xianyang 712083, China.
- Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Shaanxi University of Chinese Medicine, Xianyang 712083, China.
- Shaanxi Rheumatism and Tumor Center of TCM Engineering Technology Research, Shaanxi University of Chinese Medicine, Xianyang 712083, China.
| | - Xue Wu
- Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Shaanxi University of Chinese Medicine, Xianyang 712083, China.
| | - Cui-Ling Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an 710069, China.
| | - Li Wang
- Shaanxi Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Shaanxi University of Chinese Medicine, Xianyang 712083, China.
| | - Chen Sun
- Shaanxi Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Shaanxi University of Chinese Medicine, Xianyang 712083, China.
| | - Dong-Bo Zhang
- Shaanxi Rheumatism and Tumor Center of TCM Engineering Technology Research, Shaanxi University of Chinese Medicine, Xianyang 712083, China.
| | - Jian-Li Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an 710069, China.
| | - Yan-Ni Liang
- Shaanxi Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Shaanxi University of Chinese Medicine, Xianyang 712083, China.
| | - Dong-Xin Tang
- Guizhou Province Hospital of Traditional Chinese Medicine, Guiyang University of Chinese Medicine, Guiyang 550002, China.
| | - Zhi-Shu Tang
- Shaanxi Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Shaanxi University of Chinese Medicine, Xianyang 712083, China.
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204
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Lin X, Li J, Zhao Q, Feng JR, Gao Q, Nie JY. WGCNA Reveals Key Roles of IL8 and MMP-9 in Progression of Involvement Area in Colon of Patients with Ulcerative Colitis. Curr Med Sci 2018; 38:252-258. [PMID: 30074183 DOI: 10.1007/s11596-018-1873-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 01/15/2018] [Indexed: 12/21/2022]
Abstract
Ulcerative colitis (UC) is a chronic inflammatory disease and its involvement area in colon is influenced by a complex network of gene interactions. We analyzed the weighted gene co-expression networks in microarray dataset from colonic mucosa of patients with UC and identified one gene co-expression module that was highly associated with the progression of involved area in UC colon (Pearson coefficient=0.81, P<0.0001). In total, 523 hub genes in this module were found to be involved in immune system process after enrichment analysis in Gene Ontology. By the STRING and Cytoscape analysis, we observed that interleukin-8 (IL-8) and matrix metalloproteinase-9 (MMP-9) were centered in the network of hub genes. We then detected the expression of IL-8 and MMP-9 in mucosa from left-sided colon of patients using quantitative PCR and immunofluorescence assay respectively. Both quantitative PCR and immunofluorescence assay revealed the expression levels of IL-8 and MMP-9 were significantly different among the healthy controls, left-sided colitis group and pancolitis group (P<0.05). IL-8 and MMP-9 were detected with an enhanced expression in pancolitis as compared with leftsided colitis and healthy controls, respectively (P<0.05). This study demonstrates that immune system process is indispensable in the progression of disease in colon, and identifies that IL-8 and MMP-9 play potential critical roles for the progression.
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Affiliation(s)
- Xue Lin
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China
| | - Jin Li
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China
| | - Qiu Zhao
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China
| | - Jue-Rong Feng
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China
| | - Qian Gao
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China
| | - Jia-Yan Nie
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China.
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205
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Zhao B, Guo H, Liu Y, Luo X, Yang S, Wang Y, Leng X, Mo C, Zou Q. K313, a novel benzoxazole derivative, exhibits anti‐inflammatory properties via inhibiting GSK3β activity in LPS‐induced RAW264.7 macrophages. J Cell Biochem 2018; 119:5382-5390. [DOI: 10.1002/jcb.26685] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 01/17/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Bo‐Bo Zhao
- School of Basic Medical SciencesChengdu Medical CollegeChengduSichuanChina
| | - Hui‐Jie Guo
- Center of Science and ResearchChengdu Medical CollegeChengduSichuanChina
| | - Yang Liu
- Center of Science and ResearchChengdu Medical CollegeChengduSichuanChina
| | - Xing‐Yan Luo
- Center of Science and ResearchChengdu Medical CollegeChengduSichuanChina
| | - Shu‐Xia Yang
- Center of Science and ResearchChengdu Medical CollegeChengduSichuanChina
| | - Yan‐Tang Wang
- Center of Science and ResearchChengdu Medical CollegeChengduSichuanChina
| | - Xiao Leng
- Center of Science and ResearchChengdu Medical CollegeChengduSichuanChina
| | - Chun‐Fen Mo
- Center of Science and ResearchChengdu Medical CollegeChengduSichuanChina
| | - Qiang Zou
- School of Basic Medical SciencesChengdu Medical CollegeChengduSichuanChina
- Center of Science and ResearchChengdu Medical CollegeChengduSichuanChina
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206
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Guo Y, Wu X, Wu Q, Lu Y, Shi J, Chen X. Dihydrotanshinone I, a natural product, ameliorates DSS-induced experimental ulcerative colitis in mice. Toxicol Appl Pharmacol 2018; 344:35-45. [DOI: 10.1016/j.taap.2018.02.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 01/14/2018] [Accepted: 02/24/2018] [Indexed: 02/07/2023]
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207
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Rahman SU, Li Y, Huang Y, Zhu L, Feng S, Wu J, Wang X. Treatment of inflammatory bowel disease via green tea polyphenols: possible application and protective approaches. Inflammopharmacology 2018. [DOI: 10.1007/s10787-018-0462-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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208
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Swimming attenuates inflammation, oxidative stress, and apoptosis in a rat model of dextran sulfate sodium-induced chronic colitis. Oncotarget 2018; 8:7391-7404. [PMID: 28030847 PMCID: PMC5352330 DOI: 10.18632/oncotarget.14080] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 12/15/2016] [Indexed: 12/22/2022] Open
Abstract
Increasing evidence suggests that regular physical exercise suppresses chronic inflammation. However, the potential inhibitory effects of swimming on dextran sulfate sodium (DSS)-induced chronic colitis, and its underlying mechanisms, remain unclear. In this study, rats were orally administered DSS to induce chronic colitis, and subsequently treated with or without swimming exercise. A 7-week swimming program (1 or 1.5 hours per day, 5 days per week) ameliorated DSS-caused colon shortening, colon barrier disruption, spleen enlargement, serum LDH release, and reduction of body weight gain. Swimming for 1.5 hours per day afforded greater protection than 1 hour per day. Swimming ameliorated DSS-induced decrease in crypt depth, and increases in myeloperoxidase activity, infiltration of Ly6G+ neutrophils and TNF-a- and IFN-?-expressing CD3+ T cells, as well as fecal calprotectin and lactoferrin. Swimming inhibited pro-inflammatory cytokine and chemokine production and decreased the protein expression of phosphorylated nuclear factor-?B p65 and cyclooxygenase 2, whereas it elevated interleukin-10 levels. Swimming impeded the generation of reactive oxygen species, malondialdehyde, and nitric oxide; however, it boosted glutathione levels, total antioxidant capacity, and superoxide dismutase and glutathione peroxidase activities. Additionally, swimming decreased caspase-3 activity and expression of apoptosis-inducing factor, cytochrome c, Bax, and cleaved-caspase-3, but increased Bcl-2 levels. Overall, these results suggest that swimming exerts beneficial effects on DSS-induced chronic colitis by modulating inflammation, oxidative stress, and apoptosis.
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209
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Vega-Magaña N, Delgado-Rizo V, García-Benavides L, Toro-Arreola SD, Segura-Ortega J, Morales ASMZ, Zepeda-Nuño JS, Escarra-Senmarti M, Gutiérrez-Franco J, Haramati J, Bueno-Topete MR. Bacterial Translocation Is Linked to Increased Intestinal IFN-γ, IL-4, IL-17, and mucin-2 in Cholestatic Rats. Ann Hepatol 2018. [DOI: 10.5604/01.3001.0010.8663] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
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210
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Tang C, Sun J, Zhou B, Jin C, Liu J, Gou Y, Chen H, Kan J, Qian C, Zhang N. Immunomodulatory effects of polysaccharides from purple sweet potato on lipopolysaccharide treated RAW 264.7 macrophages. J Food Biochem 2018. [DOI: 10.1111/jfbc.12535] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Chao Tang
- College of Food Science and Engineering; Yangzhou University; Yangzhou Jiangsu 225127 China
| | - Jian Sun
- College of Chemistry and Chemical Engineering; Yangzhou University; Yangzhou Jiangsu 225002 China
- Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai Area; Xuzhou Jiangsu 221131 China
| | - Bo Zhou
- College of Food Science and Engineering; Yangzhou University; Yangzhou Jiangsu 225127 China
| | - Changhai Jin
- College of Food Science and Engineering; Yangzhou University; Yangzhou Jiangsu 225127 China
| | - Jun Liu
- College of Food Science and Engineering; Yangzhou University; Yangzhou Jiangsu 225127 China
| | - Yarun Gou
- College of Food Science and Engineering; Yangzhou University; Yangzhou Jiangsu 225127 China
| | - Hong Chen
- College of Food Science and Engineering; Yangzhou University; Yangzhou Jiangsu 225127 China
| | - Juan Kan
- College of Food Science and Engineering; Yangzhou University; Yangzhou Jiangsu 225127 China
| | - Chunlu Qian
- College of Food Science and Engineering; Yangzhou University; Yangzhou Jiangsu 225127 China
| | - Nianfeng Zhang
- College of Food Science and Engineering; Yangzhou University; Yangzhou Jiangsu 225127 China
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211
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Regulation of JAK2/STAT3 and NF-κB signal transduction pathways; Veronica polita alleviates dextran sulfate sodium-induced murine colitis. Biomed Pharmacother 2018; 100:296-303. [PMID: 29448206 DOI: 10.1016/j.biopha.2018.01.168] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/18/2018] [Accepted: 01/31/2018] [Indexed: 12/17/2022] Open
Abstract
Ulcerative colitis (UC) is a major inflammatory bowel disease (IBD) has become a worldwide emergent disease. Veronica polita (VP) is a medicinal herb that has strong antioxidant and anti-inflammatory properties. In the present study, we studied the protective effect of VP on dextran sulfate sodium (DSS)-induced experimental colitis in mice. Phytochemical screening of VP extract demonstrated the presence of high total phenolic and flavonoid contents. Compared with the DSS group, VP significantly reduced clinical symptoms with less weight loss, bloody stool, shortening of the colon, and the severity of colitis was considerably inhibited as evidenced by the reduced disease activity index (DAI) and degree of histological damage in the colon and spleen. Also, treatment with VP considerably decreased the nitric oxide (NO) and malondialdehyde (MDA) level. VP remarkably downregulated the expression of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6), inducible nitric oxide synthetase (iNOS) and cyclooxygenase-2 (COX-2) in the colon tissue. Likewise, activation of the signal transducer and activator of transcription 3 (STAT3) and nuclear factor-kappa B (NF-κB) was effectively blocked by VP. Taken together, these results demonstrate that VP has an ameliorative effect on colonic inflammation mediated by modulation of oxidative stress and inflammatory mediators by suppressing the JAK2/STAT3 and NF-κB signaling pathways.
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212
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Liang J, Chen S, Chen J, Lin J, Xiong Q, Yang Y, Yuan J, Zhou L, He L, Hou S, Li S, Huang S, Lai X. Therapeutic roles of polysaccharides from Dendrobium Officinaleon colitis and its underlying mechanisms. Carbohydr Polym 2018; 185:159-168. [PMID: 29421053 DOI: 10.1016/j.carbpol.2018.01.013] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 01/03/2018] [Indexed: 12/26/2022]
Abstract
Polysaccharide, as a promising candidate to meet the medication requirement of ulcerative colitis (UC), is increasingly attracting extensive interest. Dendrobium officinale has been widely used to treat gastrointestinal sickness in the clinical treatment of Traditional Chinese Medicine. However, it remains largely unknown whether polysaccharides (DOPS) from Dendrobium officinale can treat UC. The purpose of this paper is to confirm therapeutic action of DOPS to UC and explored its underlying mechanisms. We noted that DOPS could dramatically improve clinical signs and symptoms, decrease mortality, alleviate colonic pathological damage, and reestablish the balance of pro- and anti-inflammatory cytokines in DSS-induced acute UC mice. Moreover, DOPS treatment could also markedly suppress the activation of NLRP3 inflammasome and β-arrestin1 in vivo and in vitro. This study showed that DOPS possesses appreciable therapeutic effect to treat experimental acute UC mice. Its mechanism could be related to inhibition of NLRP3 inflammasome and β-arrestin1 signaling pathways.
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Affiliation(s)
- Jian Liang
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, and Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China
| | - Shuxian Chen
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510000, Guangdong, PR China
| | - Jianhui Chen
- Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, 223001, Jiangsu, PR China
| | - Jizong Lin
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510000, Guangdong, PR China
| | - Qingping Xiong
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, and Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China
| | - Yiqi Yang
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China
| | - Jun Yuan
- Jiangsu Provincial Key Laboratory of Regional Resource Exploitation and Medicinal Research, and School of Chemical Engineering, Huaiyin Institute of Technology, Huai'an, 223003, Jiangsu, PR China
| | - Lian Zhou
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, and Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China
| | - Lian He
- Guangdong Food and Drug Vocational College, Guangzhou, 510520, Guangdong, PR China
| | - Shaozhen Hou
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, and Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China; Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510000, Guangdong, PR China
| | - Shijie Li
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, and Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China.
| | - Song Huang
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, and Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China.
| | - Xiaoping Lai
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, and Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China.
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213
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Pacheco MT, Vezza T, Diez-Echave P, Utrilla P, Villamiel M, Moreno FJ. Anti-inflammatory bowel effect of industrial orange by-products in DSS-treated mice. Food Funct 2018; 9:4888-4896. [DOI: 10.1039/c8fo01060a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Pectin, phenolic compounds and/or Maillard reaction products present in orange by-products may exert an anti-inflammatory bowel effect in DSS-treated mice.
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Affiliation(s)
- M. Teresa Pacheco
- Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM)
- Campus de la Universidad Autónoma de Madrid
- 28049-Madrid
- Spain
| | - Teresa Vezza
- Departamento de Farmacología
- Centro de Investigaciones Biomédicas en Red – Enfermedades Hepáticas y Digestivas (CIBER-EHD)
- Centro de Investigación Biomédica
- Universidad de Granada
- Granada
| | - Patricia Diez-Echave
- Departamento de Farmacología
- Centro de Investigaciones Biomédicas en Red – Enfermedades Hepáticas y Digestivas (CIBER-EHD)
- Centro de Investigación Biomédica
- Universidad de Granada
- Granada
| | - Pilar Utrilla
- Departamento de Farmacología
- Centro de Investigaciones Biomédicas en Red – Enfermedades Hepáticas y Digestivas (CIBER-EHD)
- Centro de Investigación Biomédica
- Universidad de Granada
- Granada
| | - Mar Villamiel
- Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM)
- Campus de la Universidad Autónoma de Madrid
- 28049-Madrid
- Spain
| | - F. Javier Moreno
- Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM)
- Campus de la Universidad Autónoma de Madrid
- 28049-Madrid
- Spain
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214
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Ding X, Li D, Li M, Tian D, Yu H, Yu Q. Tumor necrosis factor-α acts reciprocally with solute carrier family 26, member 3, (downregulated-in-adenoma) and reduces its expression, leading to intestinal inflammation. Int J Mol Med 2017; 41:1224-1232. [PMID: 29286110 PMCID: PMC5819926 DOI: 10.3892/ijmm.2017.3347] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 12/18/2017] [Indexed: 12/12/2022] Open
Abstract
Solute carrier family 26, member 3 (Slc26a3), also termed downregulated-in-adenoma (DRA) is a member of the Slc26 family of anion transporters and is mutated in congenital chloride diarrhea. Our previous study demonstrated that DRA deficiency is associated with severely reduced colonic HCO3‑ secretion, a loss of colonic fluid absorption, a lack of a firmly adherent mucus layer and a severely reduced colonic mucosal resistance to dextran sodium sulfate (DSS) damage. However, the direct effect of mediators that trigger intestinal inflammatory factors on DRA has not been fully investigated. Tumor necrosis factor (TNF)‑α is a central mediator of intestinal inflammation in inflammatory bowel disease (IBD), including ulcerative colitis (UC) and Crohn's disease. However, to the best of our knowledge, whether TNF‑α acts reciprocally with DRA leading to the development of gut inflammation in IBD has not been reported. The present study identified that the expression level of DRA was reduced in active UC patients and DSS‑induced colitis mice with high expression levels of TNF‑α identified in the peripheral blood serum. In addition, TNF‑α may affect the expression level of DRA in human colonic Caco2BBE cells in a dose‑dependent manner, including in DRA overexpressed Caco2BBE cells. Furthermore, knockdown of TNF‑α in Caco2BBE cells led to a higher expression level of DRA and a markedly reduced secretion of TNF‑α in the culture media. In addition, knockdown of DRA in Caco2BBE cells led to a higher secretion of TNF‑α in the culture media compared with the control cells, which could be reversed by overexpression of DRA. Overall, these results indicate that TNF‑α may act reciprocally with DRA, leading to the development of intestinal inflammation. Based on the pivotal position of TNF‑α in IBD, DRA is hypothesized to have therapeutic potential against colitis serving as an important target.
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Affiliation(s)
- Xiangming Ding
- Department of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Dongxiao Li
- Department of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Mengke Li
- Department of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Dean Tian
- Department of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Hongbing Yu
- Department of Pediatrics, BC Children's Hospital and The University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Qin Yu
- Department of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
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215
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(+)-Borneol improves the efficacy of edaravone against DSS-induced colitis by promoting M2 macrophages polarization via JAK2-STAT3 signaling pathway. Int Immunopharmacol 2017; 53:1-10. [DOI: 10.1016/j.intimp.2017.10.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/27/2017] [Accepted: 10/01/2017] [Indexed: 12/15/2022]
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216
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Zidi S, Bediar-Boulaneb F, Belguendouz H, Belkhelfa M, Medjeber O, Laouar O, Henchiri C, Touil-Boukoffa C. Local pro-inflammatory cytokine and nitric oxide responses are elevated in patients with pterygium. Int J Immunopathol Pharmacol 2017; 30:395-405. [PMID: 29164949 PMCID: PMC5806814 DOI: 10.1177/0394632017742505] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Pterygium is a common ocular surface disease observed in humans. Chronic ultraviolet (UV) exposure is extensively recognized as an aetiological factor in the pathogenesis of this disease. This hypothesis is sustained by epidemiological and histopathological data in relation to UV injured skin. Although some findings have indicated that genetic factors, anti-apoptotic and immunological mechanisms are involved in the pathogenesis of pterygium, the mechanism by which it develops remains poorly understood. In this study, we analysed the in vivo production of IL-17A, IL-6, IL-10 and nitric oxide (NO) in the tears and sera from Algerian patients. Interestingly, we observed that IL-6, IL-17A and NO production in the tears and sera of all patients was strongly associated with inflammatory infiltration, NOS2, NF-κB and Bcl2 expression in pterygia biopsies. Collectively, our results indicate a relationship between local inflammation and anti-apoptotic processes in pterygium disease, leading to both tissue damage and enhanced cellular proliferation.
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Affiliation(s)
- S Zidi
- 1 Department of Biology, University of Guelma, Guelma, Algeria.,2 'Cytokines and NO Synthases Team', LBCM, FSB, USTHB, Algiers, Algeria.,3 Badji Mokhtar University, Annaba, Algeria
| | - F Bediar-Boulaneb
- 4 Department of Ophthalmology, Ibn Rochd University Hospital, Badji Mokhtar University, Annaba, Algeria
| | - H Belguendouz
- 2 'Cytokines and NO Synthases Team', LBCM, FSB, USTHB, Algiers, Algeria
| | - M Belkhelfa
- 2 'Cytokines and NO Synthases Team', LBCM, FSB, USTHB, Algiers, Algeria
| | - O Medjeber
- 2 'Cytokines and NO Synthases Team', LBCM, FSB, USTHB, Algiers, Algeria
| | - O Laouar
- 5 Department of Anatomopathology, Ibn Rochd University Hospital, Badji Mokhtar University, Annaba, Algeria
| | - C Henchiri
- 3 Badji Mokhtar University, Annaba, Algeria
| | - C Touil-Boukoffa
- 2 'Cytokines and NO Synthases Team', LBCM, FSB, USTHB, Algiers, Algeria
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217
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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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218
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Te Velde AA. The C-Type Lectin Mincle: Clues for a Role in Crohn's Disease Adjuvant Reaction. Front Immunol 2017; 8:1304. [PMID: 29109721 PMCID: PMC5660320 DOI: 10.3389/fimmu.2017.01304] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 09/27/2017] [Indexed: 12/17/2022] Open
Affiliation(s)
- Anje A Te Velde
- Tytgat Institute for Liver and Intestinal Research, Academic Medical Center, Amsterdam, Netherlands
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219
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Wallace JL, Ianaro A, de Nucci G. Gaseous Mediators in Gastrointestinal Mucosal Defense and Injury. Dig Dis Sci 2017; 62:2223-2230. [PMID: 28733867 DOI: 10.1007/s10620-017-4681-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 07/11/2017] [Indexed: 12/26/2022]
Abstract
Of the numerous gaseous substances that can act as signaling molecules, the best characterized are nitric oxide, carbon monoxide and hydrogen sulfide. Contributions of each of these low molecular weight substances, alone or in combination, to maintenance of gastrointestinal mucosal integrity have been established. There is considerable overlap in the actions of these gases in modulating mucosal defense and responses to injury, and in some instances they act in a cooperative manner. Each also play important roles in regulating inflammatory and repair processes throughout the gastrointestinal tract. In recent years, significant progress has been made in the development of novel anti-inflammatory and cytoprotective drugs that exploit the beneficial activities of one or more of these gaseous mediators.
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Affiliation(s)
- John L Wallace
- Department of Physiology and Pharmacology, University of Calgary, 3330 Hospital Drive NW, Calgary, AB, T2N 4N1, Canada. .,Department of Medicine, Universidade Camilo Castelo Branco, Fernandopolis, SP, Brazil.
| | - Angela Ianaro
- Department of Experimental Pharmacology, University of Naples, Naples, Italy
| | - Gilberto de Nucci
- Department of Medicine, Universidade Camilo Castelo Branco, Fernandopolis, SP, Brazil
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220
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Han X, Zhang J, Tan Y, Zhou G. Probiotics: A non-conventional therapy for oral lichen planus. Arch Oral Biol 2017; 81:90-96. [DOI: 10.1016/j.archoralbio.2017.04.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 04/10/2017] [Accepted: 04/21/2017] [Indexed: 12/14/2022]
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221
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Salehpour M, Khodagholi F, Zeinaddini Meymand A, Nourshahi M, Ashabi G. Exercise training with concomitant nitric oxide synthase inhibition improved anxiogenic behavior, spatial cognition, and BDNF/P70S6 kinase activation in 20-month-old rats. Appl Physiol Nutr Metab 2017; 43:45-53. [PMID: 28854337 DOI: 10.1139/apnm-2017-0313] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This study aimed to investigate the effect of exercise and nitric oxide synthase (NOS) inhibition on memory, anxiety, and protein levels of brain-derived neurotrophic factor (BDNF) and P70S6 kinase (P70S6K). Twenty-month-old rats were divided into 6 groups: a control group, 2 groups treated with l-nitro-arginine methyl ester (L-NAME) (25 or 100 mg/kg) for 63 days, 2 groups treated with L-NAME (25 or 100 mg/kg) for 63 days plus 2 months of exercise, and 1 group treated with exercise. Behavioral tests were conducted to determine the anxiolytic and memory-improving role of exercise and NOS inhibition. BDNF, P70S6K, and cleaved caspase-3 protein levels in the hippocampus and prefrontal cortex were evaluated by Western blotting. Exercise and L-NAME (25 mg/kg) or their combination had an anxiolytic effect and improved spatial memory in old rats compared with the control or exercised group, respectively. Exercise and treatment with a low dose of L-NAME (25 mg/kg) each increased BDNF and P70S6K in the hippocampus and prefrontal cortex compared with levels in control rats. In comparison with exercise alone, co-treatment with exercise and a low dose of L-NAME (25 mg/kg) also increased BDNF and P70S6K in the hippocampus. The neuronal level of cleaved caspase-3 was reduced in the L-NAME (25 mg/kg) + exercise group compared with the exercised group. The L-NAME (100 mg/kg) + exercise treatment had no positive behavioral or molecular effects compared with exercise alone. The protective role of NOS inhibition and aerobic exercise against aging is probably modulated via BDNF and P70S6K in the brain.
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Affiliation(s)
- Mojtaba Salehpour
- a Department of Sport Physiology, Faculty of Sport Sciences, Shahid Rajaee Teacher Training University, PO box 16875-163, Tehran, Iran
| | - Fariba Khodagholi
- b NeuroBiology Research Center, Shahid Beheshti University of Medical Sciences, PO box 19615-1178, Tehran, Iran
| | - Arman Zeinaddini Meymand
- c Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, PO box 19615-1178, Tehran, Iran
| | - Maryam Nourshahi
- d Department of Sport Physiology, Faculty of Physical Education and Sport Sciences, Shahid Beheshti University, PO box 19839-6113, Tehran, Iran
| | - Ghorbangol Ashabi
- e Department of Physiology, Faculty of Medicine, Tehran University of Medical Sciences, PO box 141761-3151, Tehran, Iran
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222
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Ghiselli R, Lucarini G, Orlando F, Ortenzi M, Cardinali L, Provinciali M, Di Primio R, Guerrieri M. Increase of n-NOS and i-NOS in Rat Colon After Sacral Neuromodulation. Neuromodulation 2017; 20:761-766. [PMID: 28837238 DOI: 10.1111/ner.12644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 05/30/2017] [Accepted: 06/26/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Sacral neuromodulation (SNM) is proposed to treat different anorectal dysfunctions but its mechanism of action is not yet known. Our previous study demonstrated how SNM can significantly increase neuronal nitric oxide synthase NOS (n-NOS) and inducible NOS (i-NOS) expression in the anus and rectum of rats. There are no reports regarding the relation between SNM and NOS in colonic cells: our aim was to assess NOS expression in colonic rat model after SNM. MATERIALS AND METHODS Twenty-six female Sprangue-Dawley rats were considered: group I, normal control rats; group II, sham treatment rats, in whom electrodes for electrical stimulation were placed in S1 foramen bilaterally and left in place, without performing neuromodulation; group III, rats in whom SNM was performed. After 14 days, the rats were sacrificed and we evaluated n-NOS and i-NOS in colonic specimens by immunohistochemistry and Western Blot analysis. RESULTS Western Blot analysis showed that levels of n-NOS and i-NOS were higher in colon of the III group rats respect to the others; in particular, immunohistochemistry revealed that, after neuromodulation, n-NOS expression in the muscle cells and i-NOS expression in glandular epithelium and nervous cells were highly represented (p < 0.05). CONCLUSION Our study showed that in colon, SNM is able to influence NO synthesis, activating n-NOS expression in muscle cells and i-NOS expression in glandular epithelium and nervous cells. Our study showed a complex colonic response to SNM. This experimental model could be applied to better understand the mechanism of action of SNM in bowel dysfunction.
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Affiliation(s)
- Roberto Ghiselli
- Clinical Surgery, Università Politecnica delle Marche - Ospedali Riuniti, Ancona, Italy
| | - Guendalina Lucarini
- Department of Clinic and Molecular Sciences, Histology, Università Politecnica delle Marche, Ancona, Italy
| | - Fiorenza Orlando
- Experimental Animal Models for Aging Units, Research Department, I.N.R.C.A. I.R.R.C.S., Ancona, Italy
| | - Monica Ortenzi
- Clinical Surgery, Università Politecnica delle Marche - Ospedali Riuniti, Ancona, Italy
| | - Luca Cardinali
- Clinical Surgery, Università Politecnica delle Marche - Ospedali Riuniti, Ancona, Italy
| | - Mauro Provinciali
- Experimental Animal Models for Aging Units, Research Department, I.N.R.C.A. I.R.R.C.S., Ancona, Italy
| | - Roberto Di Primio
- Department of Clinic and Molecular Sciences, Histology, Università Politecnica delle Marche, Ancona, Italy
| | - Mario Guerrieri
- Clinical Surgery, Università Politecnica delle Marche - Ospedali Riuniti, Ancona, Italy
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223
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Reichman H, Moshkovits I, Itan M, Pasmanik-Chor M, Vogl T, Roth J, Munitz A. Transcriptome profiling of mouse colonic eosinophils reveals a key role for eosinophils in the induction of s100a8 and s100a9 in mucosal healing. Sci Rep 2017; 7:7117. [PMID: 28769105 PMCID: PMC5540981 DOI: 10.1038/s41598-017-07738-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 07/04/2017] [Indexed: 02/07/2023] Open
Abstract
Eosinophils are bone marrow-derived cells that have been largely implicated in Th2-associated diseases. Recent data highlights a key role for eosinophils in mucosal innate immune responses especially in the gastrointestinal (GI) tract, which is one of the largest eosinophil reservoirs in the body. Although eosinophils express and synthesize a plethora of proteins that can mediate their effector activities, the transcriptome signature of eosinophils in mucosal inflammation and subsequent repair has been considerably overlooked. We demonstrate that eosinophils are recruited to the colon in acute inflammatory stages where they promote intestinal inflammation and remain in substantial numbers throughout the mucosal healing process. Microarray analysis of primary colonic eosinophils that were sorted at distinct stages of mucosal inflammation and repair revealed dynamic regulation of colonic eosinophil mRNA expression. The clinically relevant genes s100a8 and s100a9 were strikingly increased in colonic eosinophils (up to 550-fold and 80-fold, respectively). Furthermore, local and systemic expression of s100a8 and s100a9 were nearly diminished in eosinophil-deficient ΔdblGATA mice, and were re-constituted upon adoptive transfer of eosinophils. Taken together, these data may provide new insight into the involvement of eosinophils in colonic inflammation and repair, which may have diagnostic and therapeutic implications.
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Affiliation(s)
- Hadar Reichman
- Department of Clinical Microbiology and Immunology, The Sackler School of Medicine, Tel-Aviv University, Ramat Aviv, 69978, Israel
| | - Italy Moshkovits
- Department of Clinical Microbiology and Immunology, The Sackler School of Medicine, Tel-Aviv University, Ramat Aviv, 69978, Israel
| | - Michal Itan
- Department of Clinical Microbiology and Immunology, The Sackler School of Medicine, Tel-Aviv University, Ramat Aviv, 69978, Israel
| | - Metsada Pasmanik-Chor
- Bioinformatics Unit, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 64239, Israel
| | - Thomas Vogl
- Institute of Immunology, University of Münster, Münster, Germany
| | - Johannes Roth
- Institute of Immunology, University of Münster, Münster, Germany
| | - Ariel Munitz
- Department of Clinical Microbiology and Immunology, The Sackler School of Medicine, Tel-Aviv University, Ramat Aviv, 69978, Israel.
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Hypotheses on the Potential of Rice Bran Intake to Prevent Gastrointestinal Cancer through the Modulation of Oxidative Stress. Int J Mol Sci 2017; 18:ijms18071352. [PMID: 28672811 PMCID: PMC5535845 DOI: 10.3390/ijms18071352] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 06/14/2017] [Accepted: 06/20/2017] [Indexed: 12/15/2022] Open
Abstract
Previous studies have suggested the potential involvement of oxidative stress in gastrointestinal cancers. In light of this, research efforts have been focused on the potential of dietary antioxidant intake to prevent gastrointestinal cancer through the modulation of oxidative stress. Rice bran, a by-product of rice milling, has been shown to contain an abundance of phytochemicals, which are dietary antioxidants. To date, a number of studies have shown the antioxidative effect of rice bran intake, and some demonstrated that such an effect may contribute to gastrointestinal cancer prevention, largely through the antioxidative properties of rice bran phytochemicals. In addition, these phytochemicals were shown to provide protection against cancer through mechanisms linked to oxidative stress, including β-catenin-mediated cell proliferation and inflammation. The present article provides an overview of current evidence for the antioxidative properties of rice bran and its phytochemicals, and for the potential of such properties in cancer prevention through the oxidative-stress-linked mechanisms mentioned above. The article also highlights the need for an evaluation of the effectiveness of rice bran dietary interventions among cancer survivors in ameliorating oxidative stress and reducing the level of gastrointestinal cancer biomarkers, thereby establishing the potential of such interventions among these individuals in the prevention of cancer recurrence.
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225
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Van den Bossche L, Borsboom D, Devriese S, Van Welden S, Holvoet T, Devisscher L, Hindryckx P, De Vos M, Laukens D. Tauroursodeoxycholic acid protects bile acid homeostasis under inflammatory conditions and dampens Crohn's disease-like ileitis. J Transl Med 2017; 97:519-529. [PMID: 28165466 DOI: 10.1038/labinvest.2017.6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 12/06/2016] [Accepted: 12/23/2016] [Indexed: 02/06/2023] Open
Abstract
Bile acids regulate the expression of intestinal bile acid transporters and are natural ligands for nuclear receptors controlling inflammation. Accumulating evidence suggests that signaling through these receptors is impaired in inflammatory bowel disease. We investigated whether tauroursodeoxycholic acid (TUDCA), a secondary bile acid with cytoprotective properties, regulates ileal nuclear receptor and bile acid transporter expression and assessed its therapeutic potential in an experimental model of Crohn's disease (CD). Gene expression of the nuclear receptors farnesoid X receptor, pregnane X receptor and vitamin D receptor and the bile acid transporters apical sodium-dependent bile acid transporter and organic solute transporter α and β was analyzed in Caco-2 cell monolayers exposed to tumor necrosis factor (TNF)α, in ileal tissue of TNFΔARE/WT mice and in inflamed ileal biopsies from CD patients by quantitative real-time polymerase chain reaction. TNFΔARE/WT mice and wild-type littermates were treated with TUDCA or placebo for 11 weeks and ileal histopathology and expression of the aforementioned genes were determined. Exposing Caco-2 cell monolayers to TNFα impaired the mRNA expression of nuclear receptors and bile acid transporters, whereas co-incubation with TUDCA antagonized their downregulation. TNFΔARE/WT mice displayed altered ileal bile acid homeostasis that mimicked the situation in human CD ileitis. Administration of TUDCA attenuated ileitis and alleviated the downregulation of nuclear receptors and bile acid transporters in these mice. These results show that TUDCA protects bile acid homeostasis under inflammatory conditions and suppresses CD-like ileitis. Together with previous observations showing similar efficacy in experimental colitis, we conclude that TUDCA could be a promising therapeutic agent for inflammatory bowel disease, warranting a clinical trial.
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Affiliation(s)
| | - Daniel Borsboom
- Department of Gastroenterology, Ghent University Hospital, Ghent, Belgium
| | - Sarah Devriese
- Department of Gastroenterology, Ghent University Hospital, Ghent, Belgium
| | - Sophie Van Welden
- Department of Gastroenterology, Ghent University Hospital, Ghent, Belgium
| | - Tom Holvoet
- Department of Gastroenterology, Ghent University Hospital, Ghent, Belgium
| | - Lindsey Devisscher
- Department of Gastroenterology, Ghent University Hospital, Ghent, Belgium
| | - Pieter Hindryckx
- Department of Gastroenterology, Ghent University Hospital, Ghent, Belgium
| | - Martine De Vos
- Department of Gastroenterology, Ghent University Hospital, Ghent, Belgium
| | - Debby Laukens
- Department of Gastroenterology, Ghent University Hospital, Ghent, Belgium
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226
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Effect of luteolin on inflammatory responses in RAW264.7 macrophages activated with LPS and IFN-γ. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.02.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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227
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Fagundes RR, Taylor CT. Determinants of hypoxia-inducible factor activity in the intestinal mucosa. J Appl Physiol (1985) 2017; 123:1328-1334. [PMID: 28408694 DOI: 10.1152/japplphysiol.00203.2017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 03/28/2017] [Accepted: 04/07/2017] [Indexed: 12/16/2022] Open
Abstract
The intestinal mucosa is exposed to fluctuations in oxygen levels due to constantly changing rates of oxygen demand and supply and its juxtaposition with the anoxic environment of the intestinal lumen. This frequently results in a state of hypoxia in the healthy mucosa even in the physiologic state. Furthermore, pathophysiologic hypoxia (which is more severe and extensive) is associated with chronic inflammatory diseases including inflammatory bowel disease (IBD). The hypoxia-inducible factor (HIF), a ubiquitously expressed regulator of cellular adaptation to hypoxia, is central to both the adaptive and the inflammatory responses of cells of the intestinal mucosa in IBD patients. In this review, we discuss the microenvironmental factors which influence the level of HIF activity in healthy and inflamed intestinal mucosae and the consequences that increased HIF activity has for tissue function and disease progression.
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Affiliation(s)
- Raphael R Fagundes
- Graduate School of Medical Sciences, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; and.,UCD Conway Institute, Systems Biology Ireland and School of Medicine, University College Dublin, Belfield, Dublin, Ireland
| | - Cormac T Taylor
- UCD Conway Institute, Systems Biology Ireland and School of Medicine, University College Dublin, Belfield, Dublin, Ireland
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228
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Roles of Dietary Amino Acids and Their Metabolites in Pathogenesis of Inflammatory Bowel Disease. Mediators Inflamm 2017; 2017:6869259. [PMID: 28392631 PMCID: PMC5368367 DOI: 10.1155/2017/6869259] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 01/18/2017] [Accepted: 02/22/2017] [Indexed: 12/12/2022] Open
Abstract
Inflammatory Bowel Disease (IBD) is a kind of chronic inflammation, which has increasing incidence and prevalence in recent years. IBD mainly divides into Crohn's disease (CD) and ulcerative colitis (UC). It is hard to cure IBD completely, and novel therapies are urgently needed. Amino acids (AAs) and their metabolites are regarded as important nutrients for humans and animals and also play an important role in IBD amelioration. In the present study, the potential protective effects of AAs and their metabolites on IBD had been summarized with the objective to provide insights into IBD moderating using dietary AAs and their metabolites as a potential adjuvant therapy.
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229
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Morinda citrifolia (Noni) Fruit Juice Reduces Inflammatory Cytokines Expression and Contributes to the Maintenance of Intestinal Mucosal Integrity in DSS Experimental Colitis. Mediators Inflamm 2017; 2017:6567432. [PMID: 28194046 PMCID: PMC5282445 DOI: 10.1155/2017/6567432] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/09/2016] [Accepted: 12/25/2016] [Indexed: 12/12/2022] Open
Abstract
Morinda citrifolia L. (noni) has been shown to treat different disorders. However, data concerning its role in the treatment of intestinal inflammation still require clarification. In the current study, we investigated the effects of noni fruit juice (NFJ) in the treatment of C57BL/6 mice, which were continuously exposed to dextran sulfate sodium (DSS) for 9 consecutive days. NFJ consumption had no impact on the reduction of the clinical signs of the disease or on weight loss. Nonetheless, when a dilution of 1 : 10 was used, the intestinal architecture of the mice was preserved, accompanied by a reduction in the inflammatory infiltrate. Regardless of the concentration of NFJ, a decrease in both the activity of myeloperoxidase and the key inflammatory cytokines, TNF-α and IFN-γ, was also observed in the intestine. Furthermore, when NFJ was diluted 1 : 10 and 1 : 100, a reduction in the production of nitric oxide and IL-17 was detected in gut homogenates. Overall, the treatment with NFJ was effective in different aspects associated with disease progression and worsening. These results may point to noni fruit as an important source of anti-inflammatory molecules with a great potential to inhibit the progression of inflammatory diseases, such as inflammatory bowel disease.
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Tenorio-Rodriguez PA, Murillo-Álvarez JI, Campa-Cordova ÁI, Angulo C. Antioxidant screening and phenolic content of ethanol extracts of selected Baja California Peninsula macroalgae. Journal of Food Science and Technology 2017; 54:422-429. [PMID: 28242941 DOI: 10.1007/s13197-016-2478-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/15/2016] [Accepted: 12/29/2016] [Indexed: 11/28/2022]
Abstract
The Baja California Peninsula in México has about 670 species of macroalgae along its coast. Species richness increases the probability of finding native macroalgae with potential as sources of bioactive compounds suitable for health, pharmacological, and cosmetic ingredients. To understand the biotechnological value of macroalgae from the peninsula, ethanol extracts from 17 macroalgae (four Chlorophyta, six Rhodophyta, seven Ochrophyta) were screened for antioxidant potential. To determine the antioxidant capacity of macroalgal extracts, 2,2-diphenyl-1-picrylhydrazyl (DPPH), ferric reducing antioxidant power, and nitric oxide radical scavenging as well as total phenolic content (TPC) were measured. Extracts of the brown macroalgae were most active. Among these, Eisenia arborea, Padina concrecens, and Cystoseira osmundacea had the highest TPC and exhibited the strongest radical scavenging activities. Correlations were found between TPC macroalgal and scavenging capacity, indicating an important role of polyphenols as antioxidants. This suggests that some brown macroalgae from Baja California Peninsula may be a good source of natural bioactive compounds.
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Affiliation(s)
- Paola A Tenorio-Rodriguez
- Immunology and Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Calle IPN 195, 23096 La Paz, B.C.S. Mexico
| | - Jesús I Murillo-Álvarez
- Centro Interdisciplinario de Ciencias Marinas-IPN (CICIMAR), Avenida IPN s/n, 23096 La Paz, B.C.S. Mexico
| | - Ángel I Campa-Cordova
- Immunology and Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Calle IPN 195, 23096 La Paz, B.C.S. Mexico
| | - Carlos Angulo
- Immunology and Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Calle IPN 195, 23096 La Paz, B.C.S. Mexico
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Biswas S, Das R, Ray Banerjee E. Role of free radicals in human inflammatory diseases. AIMS BIOPHYSICS 2017. [DOI: 10.3934/biophy.2017.4.596] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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