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Phytochemicals Targeting JAK-STAT Pathways in Inflammatory Bowel Disease: Insights from Animal Models. Molecules 2021; 26:molecules26092824. [PMID: 34068714 PMCID: PMC8126249 DOI: 10.3390/molecules26092824] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/07/2021] [Accepted: 05/07/2021] [Indexed: 12/18/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory disorder of the gastrointestinal tract that consists of Crohn’s disease (CD) and ulcerative colitis (UC). Cytokines are thought to be key mediators of inflammation-mediated pathological processes of IBD. These cytokines play a crucial role through the Janus kinase (JAK) and signal transducer and activator of transcription (STAT) signaling pathways. Several small molecules inhibiting JAK have been used in clinical trials, and one of them has been approved for IBD treatment. Many anti-inflammatory phytochemicals have been shown to have potential as new drugs for IBD treatment. This review describes the significance of the JAK–STAT pathway as a current therapeutic target for IBD and discusses the recent findings that phytochemicals can ameliorate disease symptoms by affecting the JAK–STAT pathway in vivo in IBD disease models. Thus, we suggest that phytochemicals modulating JAK–STAT pathways are potential candidates for developing new therapeutic drugs, alternative medicines, and nutraceutical agents for the treatment of IBD.
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Cordes F, Foell D, Ding JN, Varga G, Bettenworth D. Differential regulation of JAK/STAT-signaling in patients with ulcerative colitis and Crohn’s disease. World J Gastroenterol 2020; 26:4055-4075. [PMID: 32821070 PMCID: PMC7403801 DOI: 10.3748/wjg.v26.i28.4055] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 05/24/2020] [Accepted: 06/17/2020] [Indexed: 02/06/2023] Open
Abstract
In 2018, the pan-Janus kinase (JAK) inhibitor tofacitinib was launched for the treatment of ulcerative colitis (UC). Although tofacitinib has proven efficacious in patients with active UC, it failed in patients with Crohn’s disease (CD). This finding strongly hints at a different contribution of JAK signaling in both entities. Here, we review the current knowledge on the interplay between the JAK/signal transducer and activator of transcription (STAT) pathway and inflammatory bowel diseases (IBD). In particular, we provide a detailed overview of the differences and similarities of JAK/STAT-signaling in UC and CD, highlight the impact of the JAK/STAT pathway in experimental colitis models and summarize the published evidence on JAK/STAT-signaling in immune cells of IBD as well as the genetic association between the JAK/STAT pathway and IBD. Finally, we describe novel treatment strategies targeting JAK/STAT inhibition in UC and CD and comment on the limitations and challenges of the new drug class.
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Affiliation(s)
- Friederike Cordes
- Department of Medicine B, Gastroenterology and Hepatology, University Hospital Münster, Münster D-48149, Germany
| | - Dirk Foell
- Department of Pediatric Rheumatology and Immunology, University Children’s Hospital Münster, Münster D-48149, Germany
| | - John Nik Ding
- Department of Gastroenterology, St. Vincent’s Hospital, Melbourne 3002, Australia
- Department of Medicine, University of Melbourne, East Melbourne 3002, Australia
| | - Georg Varga
- Department of Pediatric Rheumatology and Immunology, University Children’s Hospital Münster, Münster D-48149, Germany
| | - Dominik Bettenworth
- Department of Medicine B, Gastroenterology and Hepatology, University Hospital Münster, Münster D-48149, Germany
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3
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Salas A, Hernandez-Rocha C, Duijvestein M, Faubion W, McGovern D, Vermeire S, Vetrano S, Vande Casteele N. JAK-STAT pathway targeting for the treatment of inflammatory bowel disease. Nat Rev Gastroenterol Hepatol 2020; 17:323-337. [PMID: 32203403 DOI: 10.1038/s41575-020-0273-0] [Citation(s) in RCA: 306] [Impact Index Per Article: 76.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/06/2020] [Indexed: 02/07/2023]
Abstract
Cytokines are involved in intestinal homeostasis and pathological processes associated with inflammatory bowel disease (IBD). The biological effects of cytokines, including several involved in the pathology of Crohn's disease and ulcerative colitis, occur as a result of receptor-mediated signalling through the Janus kinase (JAK) and signal transducer and activator of transcription (STAT) DNA-binding families of proteins. Although therapies targeting cytokines have revolutionized IBD therapy, they have historically targeted individual cytokines, and an unmet medical need exists for patients who do not respond to or lose response to these treatments. Several small-molecule inhibitors of JAKs that have the potential to affect multiple pro-inflammatory cytokine-dependent pathways are in clinical development for the treatment of IBD, with one agent, tofacitinib, already approved for ulcerative colitis and several other agents with demonstrated efficacy in early phase trials. This Review describes the current understanding of JAK-STAT signalling in intestinal homeostasis and disease and the rationale for targeting this pathway as a treatment for IBD. The available evidence for the efficacy, safety and pharmacokinetics of JAK inhibitors in IBD as well as the potential approaches to optimize treatment with these agents, such as localized delivery or combination therapy, are also discussed.
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Affiliation(s)
- Azucena Salas
- Department of Gastroenterology, IDIBAPS, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Cristian Hernandez-Rocha
- Zane Cohen Center for Digestive Diseases, Mount Sinai Hospital Inflammatory Bowel Disease Group, Toronto, Ontario, Canada
| | - Marjolijn Duijvestein
- Gastroenterology and Hepatology, Amsterdam Gastroenterology and Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - William Faubion
- Gastroenterology and Hepatology, Mayo Clinic, Rochester, MI, USA
| | - Dermot McGovern
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Severine Vermeire
- Department of Gastroenterology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Stefania Vetrano
- Department of Biomedical Sciences, Humanitas University, Milan, Italy.,IBD Center, Laboratory of Immunology in Gastroenterology, Humanitas Clinical and Research Center IRCCS, Milan, Italy
| | - Niels Vande Casteele
- Robarts Clinical Trials, London, ON, Canada. .,Department of Medicine, University of California San Diego, La Jolla, CA, USA.
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Delgado-Ramirez Y, Colly V, Gonzalez GV, Leon-Cabrera S. Signal transducer and activator of transcription 6 as a target in colon cancer therapy. Oncol Lett 2020; 20:455-464. [PMID: 32565970 PMCID: PMC7285805 DOI: 10.3892/ol.2020.11614] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 04/17/2020] [Indexed: 12/12/2022] Open
Abstract
Signal transducer and activator of transcription 6 (STAT6) is a member of the STAT family of proteins that serve key roles in the initiation of tumorigenesis and malignant transformation. STAT6 is highly expressed in several types of cancer, including breast, pancreatic, prostate and colorectal cancer. STAT6 transduces signals in response to the binding of interleukin (IL)-4 and IL-13 to their receptors and regulates the expression of genes involved in the immune response, cell survival, tumor proliferation and metastasis. Patients with colorectal cancer exhibit high STAT6 activity in the colonic epithelium, and STAT6 expression is associated with lower survival rates, lymph node metastasis, changes in the epithelial barrier function and alterations in the inflammatory response. A number of studies investigating experimental models and cancer cell lines have revealed that STAT6 is associated with tumor growth and development, as well as with increased invasion and metastasis, suggesting that STAT6 inhibition may serve as a novel therapeutic strategy in colon cancer. The present review summarizes the evidence with regard to the implications of STAT6 in cancer biology and the direct and indirect effects on colon tumor transformation. Furthermore, the current treatment strategies targeting the IL-4/IL-13/STAT6 axis in colon cancer are discussed.
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Affiliation(s)
- Yael Delgado-Ramirez
- Laboratory of Oncoimmunology, Biomedical Research Unit, National Autonomous University of Mexico, Tlalnepantla, CP 54090, Mexico
| | - Vaneesa Colly
- Laboratory of Oncoimmunology, Biomedical Research Unit, National Autonomous University of Mexico, Tlalnepantla, CP 54090, Mexico.,Medical School, Faculty of Superior Studies Iztacala, National Autonomous University of Mexico, Tlalnepantla, CP 54090, Mexico
| | - Giovanni Villanueva Gonzalez
- Medical School, Faculty of Superior Studies Iztacala, National Autonomous University of Mexico, Tlalnepantla, CP 54090, Mexico
| | - Sonia Leon-Cabrera
- Laboratory of Oncoimmunology, Biomedical Research Unit, National Autonomous University of Mexico, Tlalnepantla, CP 54090, Mexico.,Medical School, Faculty of Superior Studies Iztacala, National Autonomous University of Mexico, Tlalnepantla, CP 54090, Mexico
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Chandrakar P, Parmar N, Descoteaux A, Kar S. Differential Induction of SOCS Isoforms by Leishmania donovani Impairs Macrophage–T Cell Cross-Talk and Host Defense. THE JOURNAL OF IMMUNOLOGY 2019; 204:596-610. [DOI: 10.4049/jimmunol.1900412] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 11/24/2019] [Indexed: 12/31/2022]
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6
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Shi W, Zou R, Yang M, Mai L, Ren J, Wen J, Liu Z, Lai R. Analysis of Genes Involved in Ulcerative Colitis Activity and Tumorigenesis Through Systematic Mining of Gene Co-expression Networks. Front Physiol 2019; 10:662. [PMID: 31214045 PMCID: PMC6554330 DOI: 10.3389/fphys.2019.00662] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 05/09/2019] [Indexed: 12/12/2022] Open
Abstract
Ulcerative colitis (UC) is an idiopathic, chronic inflammatory disorder of the colon, characterized by continuous mucosal inflammation. Recently, some studies have considered it as part of an inflammatory bowel disease-based global network. Herein, with the aim of identifying the underlying potential genetic mechanisms involved in the development of UC, multiple algorithms for weighted correlation network analysis (WGCNA), principal component analysis (PCA), and linear models for microarray data algorithm (LIMMA) were used to identify the hub genes. The map of platelet activation, ligand-receptor interaction, calcium signaling pathway, and cAMP signaling pathway showed significant links with UC development, and the hub genes CCR7, CXCL10, CXCL9, IDO1, MMP9, and VCAM1, which are associated with immune dysregulation and tumorigenesis in biological function, were found by multiple powerful bioinformatics methods. Analysis of The Cancer Genome Atlas (TCGA) also showed that the low expression of CCR7, CXCL10, CXCL9, and MMP9 may be correlated with a poor prognosis of overall survival (OS) in colorectal cancer (CRC) patients (all p < 0.05), while no significance detected in both of IDO1 and VCAM1. In addition, low expression of CCR7, CXCL10, CXCL9, MMP9, and IDO1 may be associated with a poor prognosis in recurrence free survival (RFS) time (all p < 0.05), but no significant difference was identified in VCAM1. Moreover, the NFKB1, FLI1, and STAT1 with the highest enrichment score were detected as the master regulators of hub genes. In summary, these results indicated the central role of the hub genes of CCR7, CXCL10, CXCL9, IDO1, VCAM1, and MMP9, in response to UC progression, as well as the development of UC to CRC, thus shedding light on the molecular mechanisms involved and assisting with drug target validation.
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Affiliation(s)
- Wanting Shi
- Department of Gastroenterology, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China.,Digestive Endoscopy Center, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Rongjun Zou
- Department of Cardiovascular Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Minglei Yang
- Department of Genetics, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Lei Mai
- Department of Gastroenterology, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Jiangnan Ren
- Digestive Endoscopy Center, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Jialing Wen
- Guangdong Institute of Gastroenterology, Guangdong, China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhaoshi Liu
- Department of Gastroenterology, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China.,Digestive Endoscopy Center, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Renxu Lai
- Department of Gastroenterology, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China.,Digestive Endoscopy Center, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
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The Expression Levels of IL-4/IL-13/STAT6 Signaling Pathway Genes and SOCS3 Could Help to Differentiate the Histopathological Subtypes of Non-Small Cell Lung Carcinoma. Mol Diagn Ther 2019; 22:621-629. [PMID: 30105735 PMCID: PMC6132440 DOI: 10.1007/s40291-018-0355-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Background The interleukin (IL)-4/IL-13/signal transducer and activator of transcription (STAT) 6 signaling pathway and the SOCS3 gene, one of its main regulators, constitute an important link between the inflammation process in the epithelial cells and inflammatory-related tumorigenesis. The present study is the first to evaluate IL-4, IL-13, STAT6, and SOCS3 mRNA expression in non-small cell lung carcinoma (NSCLC) histopathological subtypes. Methods Gene expression levels were assessed using TaqMan® probes by quantitative reverse transcription PCR (qRT-PCR) in lung tumor samples and unchanged lung tissue samples. Results Increased expression of IL-4, IL-13, and STAT6 was observed in all histopathological NSCLC subtypes (squamous cell carcinoma [SCC], adenocarcinoma [AC], and large cell carcinoma [LCC]). Significantly higher expression of IL-13 and STAT6 (p = 0.019 and p = 0.008, respectively) was found in SCC than in LCC. No statistically significant differences were found for IL-4. Significantly higher SOCS3 expression was found in LCC than in AC (p = 0.027). A negative correlation (rho = –0.519) was observed for the STAT6 and SOCS3 genes in SCC (p = 0.005). No associations were found between gene expression and tumor staging (post-operative Tumor Node Metastasis [pTNM], American Joint Committee on Cancer [AJCC]), patients’ age, sex, or history of smoking. Conclusions As the number of LCC cases in our study was quite low, the statistically significant results obtained should be confirmed in a larger group of patients, particularly as the relationships identified between increased IL-4, IL-13, and STAT6 mRNA expression and decreased SOCS3 expression suggest that these genes may serve as potential diagnostic markers for differentiating between NSCLC histopathological subtypes.
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Wang R, Liu W, Du M, Yang C, Li X, Yang P. The differential effect of basic fibroblast growth factor and stromal cell‑derived factor‑1 pretreatment on bone morrow mesenchymal stem cells osteogenic differentiation potency. Mol Med Rep 2017; 17:3715-3721. [PMID: 29359787 PMCID: PMC5802181 DOI: 10.3892/mmr.2017.8316] [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: 06/16/2017] [Accepted: 11/03/2017] [Indexed: 12/17/2022] Open
Abstract
In situ tissue engineering has become a novel strategy to repair periodontal/bone tissue defects. The choice of cytokines that promote the recruitment and proliferation, and potentiate and maintain the osteogenic differentiation ability of mesenchymal stem cells (MSCs) is the key point in this technique. Stromal cell‑derived factor‑1 (SDF‑1) and basic fibroblast growth factor (bFGF) have the ability to promote the recruitment, and proliferation of MSCs; however, the differential effect of SDF‑1 and bFGF pretreatment on MSC osteogenic differentiation potency remains to be explored. The present study comparatively observed osteogenic differentiation of bone morrow MSCs (BMMSCs) pretreated by bFGF or SDF‑1 in vitro. The gene and protein expression levels of alkaline phosphatase (ALP), runt related transcription factor 2 (Runx‑2) and bone sialoprotein (BSP) were detected using reverse transcription‑quantitative polymerase chain reaction and western blotting. The results showed that the expression of ALP mRNA on day 3, and BSP and Runx‑2 mRNA on day 7 in the bFGF pretreatment group was significantly higher than those in SDF‑1 pretreatment group. Expression levels of Runx‑2 mRNA, and ALP and Runx‑2 protein on day 3 in the SDF‑1 pretreatment group were higher than those in the bFGF pretreatment group. However, there was no significant difference in osteogenic differentiation ability on day 14 and 28 between the bFGF‑ or SDF‑1‑pretreatment groups and the control. In conclusion, bFGF and SDF‑1 pretreatment inhibits osteogenic differentiation of BMMSCs at the early stage, promotes it in the medium phase, and maintains it in the later stage during osteogenic induction, particularly at the mRNA level. Out of the two cytokines, bFGF appeared to have a greater effect on osteogenic differentiation.
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Affiliation(s)
- Ruolin Wang
- Department of Periodontology, School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Wenhua Liu
- Department of Periodontology, School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Mi Du
- Department of Periodontology, School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Chengzhe Yang
- Department of Oral and Maxillofacial Surgery, Qilu Hospital and Institute of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Xuefen Li
- Department of Periodontology, School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Pishan Yang
- Department of Periodontology, School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
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Feng J, Gao Q, Liu Q, Wang F, Lin X, Zhao Q, Liu J, Li J. Integrated strategy of differentially expressed genes associated with ulcerative colitis. Mol Med Rep 2017; 16:7479-7489. [PMID: 28944823 PMCID: PMC5865879 DOI: 10.3892/mmr.2017.7509] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 07/11/2017] [Indexed: 12/23/2022] Open
Abstract
Ulcerative colitis (UC) is a chronic inflammatory bowel disease that is associated with both genetic and environmental factors; however, the underlying pathogenesis of UC remains unclear. The present study aimed to further explore 12 microarray datasets from patients with UC obtained from the Gene Expression Omnibus repository, for potential genetic pathogenesis of UC through a global bioinformatics view, which included identification of differentially expressed genes (DEGs), functional enrichments, protein-protein interactions, transcriptional and post-transcriptional regulation and drug-gene associations. This integrated analysis screened 233 DEGs that were compared between UC and normal control tissue samples; these included 173 upregulated and 60 downregulated DEGs. Subsequently, transcription factors, such as TATA-binding protein 1 (TBP1; hsa_TATAAA_V$TATA_01) and nuclear factor-κB (NF-κB; hsa_V$NFKAPPAB_01) and microRNAs (miRNAs; such as miR-516-3p and miR-23a) were revealed to be associated with 233 DEGs. Notably, further analysis indicated that these DEGs were enriched in certain diseases, including inflammation, fibrosis and immune system diseases, and were also associated with some drugs, including prednisone, collagenase and mycophenolate mofetil, which may provide choice for treatment of UC. In conclusion, this study may provide novel insights into discovering potential molecular targets involved in the pathogenesis and treatment of UC.
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Affiliation(s)
- Juerong Feng
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Diseases, Wuhan, Hubei 430071, P.R. China
| | - Qian Gao
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Diseases, Wuhan, Hubei 430071, P.R. China
| | - Qing Liu
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Diseases, Wuhan, Hubei 430071, P.R. China
| | - Fan Wang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Diseases, Wuhan, Hubei 430071, P.R. China
| | - Xue Lin
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Diseases, Wuhan, Hubei 430071, P.R. China
| | - Qiu Zhao
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Diseases, Wuhan, Hubei 430071, P.R. China
| | - Jing Liu
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Diseases, Wuhan, Hubei 430071, P.R. China
| | - Jin Li
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Diseases, Wuhan, Hubei 430071, P.R. China
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Downregulation of miR-214-3p May Contribute to Pathogenesis of Ulcerative Colitis via Targeting STAT6. BIOMED RESEARCH INTERNATIONAL 2017; 2017:8524972. [PMID: 28752100 PMCID: PMC5511677 DOI: 10.1155/2017/8524972] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 04/30/2017] [Accepted: 05/30/2017] [Indexed: 12/13/2022]
Abstract
MicroRNAs (miRs) are small noncoding RNA molecules and recently have demonstrated that altered expression and functions are their tight association with ulcerative colitis (UC). Previous microarray study reported that miR-214 was downregulated in the sigmoid colon of patients with active UC, but the roles of miR-214 in the pathogenesis of UC remain to be elucidated. In this study, significant lower level of miR-214-3p and higher level of STAT6 in the intestinal mucosa of active UC patients compared with the health controls were confirmed by quantitative real-time PCR. Results of luciferase reporter assays and western blot demonstrated that miR-214-3p directly targets STAT6 and negatively regulates the expression of STAT6 at the posttranscriptional level. Furthermore, the expression of miR-214-3p was decreased in TNF-α treated HT29 cells and STAT6 protein level was increased in a time-dependent manner. Silenced STAT6 and upregulation of miR-214-3p could decrease the level of INF-γ in TNF-α treated HT29 cells. Additionally, the results of the present study indicate that miR-214-3p and STAT6 axis may be a novel therapeutic target for intestinal inflammation of patients with active UC.
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Schneider M, Efferth T, Abdel-Aziz H. Anti-inflammatory Effects of Herbal Preparations STW5 and STW5-II in Cytokine-Challenged Normal Human Colon Cells. Front Pharmacol 2016; 7:393. [PMID: 27833553 PMCID: PMC5080345 DOI: 10.3389/fphar.2016.00393] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 10/07/2016] [Indexed: 12/17/2022] Open
Abstract
Inflammatory bowel diseases (IBD) are chronic relapsing intestinal disorders characterized by up-regulation of pro-inflammatory cytokines followed by invasion of immune cells to the intestinal lamina propria. Standard therapies consist of anti-inflammatory or immunosuppressive drugs. Since clinical efficiency is not satisfactory and the established drugs have massive side effects, new strategies to treat IBD are required. Herein, we investigate the protective effect of the fixed combination herbal preparations STW5 and STW5-II and the contribution of the corresponding single components in an in vitro inflammation model. The normal human colon epithelial cell line, NCM460, was treated with STW5, STW5-II or their single components for 4 h followed by experimental conditions comparable to induction of colitis. A pro-inflammatory cytokine cocktail consisting of TNF-α, IL-β, and IFN-γ was used to simulate inflammatory stimuli normally caused by immune cells. The effects on NCM460 cells were investigated by enzyme-linked immunoassay and Proteome Profiler®. Levels of IP-10, MCP-1, I-TAC, Groα, and IL-8 were elevated in chemokine-treated cells compared to untreated cells, but significantly reduced upon pretreatment with STW5 or STW5-II. However, the single compounds revealed only little effects on protein expression. Furthermore, we investigated the effect of both combination preparations on pro-inflammatory transcription factors of the STAT family using Western blot. In addition, we tested the effects on upstream MAPK p38. Both, STW5 and STW5-II did not show any effect on MAPK p38, but were effective in reducing phosphorylated levels of STAT1. In conclusion, both combination preparations act in an anti-inflammatory manner by influencing cytokine secretion via reduced activity of the JAK/STAT1 pathway. Relevant differences between STW5 and STW5-II were not found indicating similar efficacies.
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Affiliation(s)
- Mathias Schneider
- Department of Pharmaceutical Biology, Johannes Gutenberg University, Mainz Germany
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Johannes Gutenberg University, Mainz Germany
| | - Heba Abdel-Aziz
- Department of Pharmaceutical Biology, Johannes Gutenberg University, MainzGermany; Medical and Clinical Affairs Phytomedicines, Steigerwald Arzneimittelwerk GmbH, Bayer Consumer Health, DarmstadtGermany
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12
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Integrating Immunologic Signaling Networks: The JAK/STAT Pathway in Colitis and Colitis-Associated Cancer. Vaccines (Basel) 2016; 4:vaccines4010005. [PMID: 26938566 PMCID: PMC4810057 DOI: 10.3390/vaccines4010005] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 02/19/2016] [Accepted: 02/25/2016] [Indexed: 12/12/2022] Open
Abstract
Cytokines are believed to be crucial mediators of chronic intestinal inflammation in inflammatory bowel diseases (IBD) such as Crohn's disease (CD) and ulcerative colitis (UC). Many of these cytokines trigger cellular effects and functions through signaling via janus kinase (JAK) and signal transducer and activator of transcription (STAT) molecules. In this way, JAK/STAT signaling controls important events like cell differentiation, secretion of cytokines or proliferation and apoptosis in IBD in both adaptive and innate immune cells. Moreover, JAK/STAT signaling, especially via the IL-6/STAT3 axis, is believed to be involved in the transition of inflammatory lesions to tumors leading to colitis-associated cancer (CAC). In this review, we will introduce the main cellular players and cytokines that contribute to pathogenesis of IBD by JAK/STAT signaling, and will highlight the integrative function that JAK/STATs exert in this context as well as their divergent role in different cells and processes. Moreover, we will explain current concepts of the implication of JAK/STAT signaling in CAC and finally discuss present and future therapies for IBD that interfere with JAK/STAT signaling.
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13
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Chen YY, Ma ZB, Xu HY, Shi LJ, Li DY, Sun LY, Yin XH, Sang GY, Xu D, Tang YH, Wang X, Li P, Wu F, Zhou J. IL-6/STAT3/SOCS3 signaling pathway playing a regulatory role in ulcerative colitis carcinogenesis. Int J Clin Exp Med 2015; 8:12009-12017. [PMID: 26550113 PMCID: PMC4612798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Accepted: 06/20/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE Large-scale clinical studies have shown that ulcerative colities were related with colorectal cancer. In this study, animal model was established by AOM/DSS method to explore the activation of IL-6-STAT3-SOCS3 signaling pathway and the expression of pathway-related proteins in ulcerative colitis carcinogenesis, in order to lay a foundation for exploring the regulation mechanism of IL-6/STAT3/SOCS3 signaling pathway in ulcerative colitis carcinogenesis. METHOD AOM/DSS modeling method was used to establish animal models of ulcerative colitis carcinogenesis; colonic mucosa specimens were collected at different time points for pathological examination. Immunohistochemical method and western blot were used to detect the expression of IL6, STAT3 and SOCS3 protein in the control group, UC model + empty vector group and UC model + STAT3 knockout group. RESULTS In UC model + empty vector group, IL6 and STAT3 expression was increased as lesion degree increased (P < 0.05). The expression of SOCS3 was weakened and the degree of activation decreased (P < 0.05). IL6 expression increased in UC model + STAT3 knockout group (P < 0.05) while the expression of SOCS3 decreased; compared with the UC model + empty vector group, there was a significant difference (P < 0.05). CONCLUSION The expression and activation of IL6 and STAT3 expression were enhanced in ulcerative colitis carcinogenesis, and their expression increased with the lesion degree increased, reflecting the disease progression to a certain extent. The expression and activation of SOCS3 expression decreased. STAT3 had a certain effect on the expression of SOCS3, playing a certain regulatory role in ulcerative colitis carcinogenesis.
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Affiliation(s)
- Ying-Ying Chen
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
| | - Zhi-Bin Ma
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
| | - Hong-Yu Xu
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
| | - Li-Jun Shi
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
| | - Dong-Yue Li
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
| | - Li-Ying Sun
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
| | - Xun-Hai Yin
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
| | - Guo-Yin Sang
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
| | - Dan Xu
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
| | - Yin-Hua Tang
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
| | - Xi Wang
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
| | - Peng Li
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
| | - Feng Wu
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
| | - Jin Zhou
- Department of Hematology, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, Heilongjiang Province, P. R. China
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Xu AT, Li Y, Zhao D, Shen J, Xu XT, Qiao YQ, Zhu MM, Wang TR, Cui Y, Ai LY, Ran ZH. High suppressor of cytokine signaling-3 expression impairs STAT3-dependent protective effects of interleukin-22 in ulcerative colitis in remission. Inflamm Bowel Dis 2015; 21:241-50. [PMID: 25545374 DOI: 10.1097/mib.0000000000000267] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND High SOCS3 expression in intestinal epithelial cells (IECs) of patients with ulcerative colitis (UC) in remission reflects the shorter time to relapse. We investigated whether high SOCS3 increased risk for relapse through violating STAT3-dependent protective effects of interleukin (IL)-22 during UC remission. METHODS Expression of IL-22 and c-Myc in UC remission mucosa was analyzed by immunohistochemistry. Effects of IL-22 on migration and proliferation of IEC cell lines with enforced SOCS3 expression were assessed with wounding assay and CCK-8 assay, respectively. Influence of STAT3 interference and SOCS3 overexpression on IL-22-regulated expression of antimicrobial peptide and proliferation-related molecules, including DMBT1, c-Myc, Survivin, Bcl-2, and Bcl-xL, were performed with quantitative real-time polymerase chain reaction or Western blot. RESULTS Patients with UC in remission showed significantly more IL-22-positive immune cells, but no difference of epithelial c-Myc levels, in mucosa compared with healthy controls. Overexpression of SOCS3 nearly abolished IL-22-induced activation of STAT3. By inhibiting STAT3 signaling, SOCS3 influenced IL-22-induced expression of DMBT1, c-Myc, Survivin, and Bcl-2 as well as proliferation and migration processes in cultured IEC cell line. CONCLUSIONS SOCS3 overexpression impairs IL-22-mediated epithelial homeostasis and mucosal wound healing, which could be the mechanism for high SOCS3 IEC expression contributed early relapse of mucosal inflammation. Prevention of SOCS3 expression or enhancement of IL-22/STAT3 signaling in IEC seems to be rational therapeutic strategies for UC remission maintenance.
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Affiliation(s)
- An Tao Xu
- Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Division of Gastroenterology and Hepatology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
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15
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Yu Y, Wu S, Li J, Wang R, Xie X, Yu X, Pan J, Xu Y, Zheng L. The effect of curcumin on the brain-gut axis in rat model of irritable bowel syndrome: involvement of 5-HT-dependent signaling. Metab Brain Dis 2015; 30:47-55. [PMID: 24807589 DOI: 10.1007/s11011-014-9554-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 04/22/2014] [Indexed: 12/17/2022]
Abstract
Irritable bowel syndrome (IBS) is induced by dysfunction of central nervous and peripheral intestinal systems, which affects an estimated 10-15% population worldwide annually. Stress-related psychiatric disorders including depression and anxiety are often comorbid with gastrointestinal function disorder, such as IBS. However, the mechanism of IBS still remains unknown. Curcumin is a biologically active phytochemical presents in turmeric and has pharmacological actions that benefit patients with depression and anxiety. Our study found that IBS rats showed depression- and anxiety-like behaviors associated with decreased 5-HT (serotonin), BDNF (Brain-derived neurotrophic factor) and pCREB (phosphorylation of cAMP response element-binding protein) expression in the hippocampus after chronic acute combining stress (CAS). However, these decreased parameters were obviously increased in the colonic after CAS. Curcumin (40 mg/kg) reduced the immobility time of forced swimming and the number of buried marbles in behavioral tests of CAS rats. Curcumin also decreased the number of fecal output and abdominal withdrawal reflex (AWR) scores in response to graded distention. Moreover, curcumin increased serotonin, BDNF and pCREB levels in the hippocampus, but they were decreased in the colonic of CAS rats. 5-HT(1A) receptor antagonist NAN-190 reversed the effects of curcumin on behaviors and the changes of intestine, pCREB and BDNF expression, which are related to IBS. These results suggested that curcumin exerts the effects on IBS through regulating neurotransmitters, BDNF and CREB signaling both in the brain and peripheral intestinal system.
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MESH Headings
- Animals
- Anxiety/drug therapy
- Anxiety/physiopathology
- Brain-Derived Neurotrophic Factor/biosynthesis
- Colon/metabolism
- Curcumin/pharmacology
- Curcumin/therapeutic use
- Cyclic AMP Response Element-Binding Protein/biosynthesis
- Defecation
- Diazepam/pharmacology
- Disease Models, Animal
- Drug Evaluation, Preclinical
- Enteric Nervous System/physiopathology
- Gastrointestinal Motility/drug effects
- Hippocampus/metabolism
- Hippocampus/physiopathology
- Imipramine/pharmacology
- Irritable Bowel Syndrome/drug therapy
- Irritable Bowel Syndrome/physiopathology
- Male
- Phosphorylation
- Physical Exertion
- Piperazines/pharmacology
- Pressure/adverse effects
- Protein Processing, Post-Translational
- Rats
- Rats, Sprague-Dawley
- Receptor, Serotonin, 5-HT1A/biosynthesis
- Receptor, Serotonin, 5-HT1A/drug effects
- Receptor, Serotonin, 5-HT1A/physiology
- Serotonin/biosynthesis
- Serotonin/physiology
- Serotonin 5-HT1 Receptor Antagonists/pharmacology
- Signal Transduction
- Stress, Physiological/physiology
- Stress, Psychological/physiopathology
- Up-Regulation/drug effects
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Affiliation(s)
- Yingcong Yu
- Department of Gastroenterology, Wenzhou No.3 Clinical Institute of Wenzhou Medical University, Wenzhou people's hospital, Wenzhou, Zhejiang Province, 325000, China
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16
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Suratanee A, Plaimas K. Identification of inflammatory bowel disease-related proteins using a reverse k-nearest neighbor search. J Bioinform Comput Biol 2014; 12:1450017. [DOI: 10.1142/s0219720014500176] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Inflammatory bowel disease (IBD) is a chronic disease whose incidence and prevalence increase every year; however, the pathogenesis of IBD is still unclear. Thus, identifying IBD-related proteins is important for understanding its complex disease mechanism. Here, we propose a new and simple network-based approach using a reverse k-nearest neighbor ( R k NN ) search to identify novel IBD-related proteins. Protein–protein interactions (PPI) and Genome-Wide Association Studies (GWAS) were used in this study. After constructing the PPI network, the R k NN search was applied to all of the proteins to identify sets of influenced proteins among their k-nearest neighbors ( R k NNs ). An observed protein whose influenced proteins were mostly known IBD-related proteins was statistically identified as a novel IBD-related protein. Our method outperformed a random aspect, k NN search, and centrality measures based on the network topology. A total of 39 proteins were identified as IBD-related proteins. Of these proteins, 71% were reported at least once in the literature as related to IBD. Additionally, these proteins were found over-represented in the IBD pathway and enriched in importantly functional pathways in IBD. In conclusion, the R k NN search with the statistical enrichment test is a great tool to identify IBD-related proteins to better understand its complex disease mechanism.
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Affiliation(s)
- Apichat Suratanee
- Department of Mathematics, Faculty of Applied Science, King Mongkut's University of Technology North Bangkok, 1518 Pracharat 1 Road, Wongsawang, Bangsue, Bangkok 10800, Thailand
| | - Kitiporn Plaimas
- Integrative Bioinformatics and Systems Biology Group, Advanced Virtual and Intelligent Computing Research Center (AVIC), Department of Mathematics and Computer Science, Faculty of Science, Chulalongkorn University, Phyathai Road, Patumwan, Bangkok 10330, Thailand
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