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Wang L, Cao J, Li C, Zhang L. IL-27/IL-27 Receptor Signaling Provides Protection in Clostridium difficile-Induced Colitis. J Infect Dis 2017; 217:198-207. [DOI: 10.1093/infdis/jix581] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Accepted: 11/04/2017] [Indexed: 01/03/2023] Open
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McLean MH, Andrews C, Hanson ML, Baseler WA, Anver MR, Senkevitch E, Staniszewska AK, Smith C, Davies LC, Hixon J, Li W, Shen W, Steidler L, Durum SK. Interleukin-27 Is a Potential Rescue Therapy for Acute Severe Colitis Through Interleukin-10-Dependent, T-Cell-Independent Attenuation of Colonic Mucosal Innate Immune Responses. Inflamm Bowel Dis 2017; 23:1983-1995. [PMID: 29019857 PMCID: PMC5796760 DOI: 10.1097/mib.0000000000001274] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND If treatment with intravenous steroids fail, inflammatory bowel disease patients with acute severe colitis face systemic anti-tumor necrosis factor biologic rescue therapy or colectomy. Interleukin (IL)-27 is a cytokine with an immunosuppressive role in adaptive immune responses. However, the IL-27 receptor complex is also expressed on innate immune cells, and there is evidence that IL-27 can impact the function of innate cell subsets, although this particular functionality in vivo is not understood. Our aim was to define the efficacy of IL-27 in acute severe colitis and characterize novel IL-27-driven mechanisms of immunosuppression in the colonic mucosa. METHODS We assessed oral delivery of Lactococcus lactis expressing an IL-27 hyperkine on the innate immune response in vivo in a genetically intact, noninfective, acute murine colitis model induced by intrarectal instillation of 2,4,6-trinitrobenzenesulfonic acid in SJL/J mice. RESULTS IL-27 attenuates acute severe colitis through the reduction of colonic mucosal neutrophil infiltrate associated with a decreased CXC chemokine gradient. This suppression was T cell independent and IL-10 dependent, initially featuring enhanced mucosal IL-10. IL-27 was associated with a reduction in colonic proinflammatory cytokines and induced a multifocal, strong, positive nuclear expression of phosphorylated STAT-1 in mucosal epithelial cells. CONCLUSION We have defined novel mechanisms of IL-27 immunosuppression toward colonic innate immune responses in vivo. Mucosal delivery of IL-27 has translational potential as a novel therapeutic for inflammatory bowel disease, and it is a future mucosal directed rescue therapy in acute severe inflammatory bowel disease.
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Affiliation(s)
- Mairi H McLean
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
- School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Scotland, AB25 2ZD, UK
| | - Caroline Andrews
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Miranda L Hanson
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Walter A Baseler
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Miriam R Anver
- Pathology/Histotechnology Laboratory, Laboratory Animal Sciences Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, 21702, USA
| | - Emilee Senkevitch
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Aleksandra K Staniszewska
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
- School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Scotland, AB25 2ZD, UK
| | - Christopher Smith
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
- School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Scotland, AB25 2ZD, UK
| | - Luke C Davies
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Julie Hixon
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Wenqeng Li
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Wei Shen
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | | | - Scott K Durum
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
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Baumgartner R, Forteza MJ, Ketelhuth DFJ. The interplay between cytokines and the Kynurenine pathway in inflammation and atherosclerosis. Cytokine 2017; 122:154148. [PMID: 28899580 DOI: 10.1016/j.cyto.2017.09.004] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 09/01/2017] [Accepted: 09/02/2017] [Indexed: 12/20/2022]
Abstract
The kynurenine pathway (KP) is the major metabolic route of tryptophan (Trp) metabolism. Indoleamine 2,3-dioxygenase (IDO1), the enzyme responsible for the first and rate-limiting step in the pathway, as well as other enzymes in the pathway, have been shown to be highly regulated by cytokines. Hence, the KP has been implicated in several pathologic conditions, including infectious diseases, psychiatric disorders, malignancies, and autoimmune and chronic inflammatory diseases. Additionally, recent studies have linked the KP with atherosclerosis, suggesting that Trp metabolism could play an essential role in the maintenance of immune homeostasis in the vascular wall. This review summarizes experimental and clinical evidence of the interplay between cytokines and the KP and the potential role of the KP in cardiovascular diseases.
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Affiliation(s)
- Roland Baumgartner
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institute and Karolinska University Hospital, SE-17176 Stockholm, Sweden.
| | - Maria J Forteza
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institute and Karolinska University Hospital, SE-17176 Stockholm, Sweden
| | - Daniel F J Ketelhuth
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institute and Karolinska University Hospital, SE-17176 Stockholm, Sweden
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Reichhardt M, Holmskov U, Meri S. SALSA—A dance on a slippery floor with changing partners. Mol Immunol 2017; 89:100-110. [DOI: 10.1016/j.molimm.2017.05.029] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 05/31/2017] [Accepted: 05/31/2017] [Indexed: 02/06/2023]
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IL-27R signaling controls myeloid cells accumulation and antigen-presentation in atherosclerosis. Sci Rep 2017; 7:2255. [PMID: 28536468 PMCID: PMC5442117 DOI: 10.1038/s41598-017-01828-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 04/03/2017] [Indexed: 01/24/2023] Open
Abstract
Myeloid cells, key players in atherosclerosis, take up and present antigens, leading to systemic and local T cell activation. The recruitment and activation of immune cells to the aorta in atherosclerosis is regulated by adhesion molecules, chemokines and cytokines. IL-27R is an immunoregulatory signaling nod in autoimmune and infectious pathologies. IL-27R was shown to suppress T cells activation in atherosclerosis, however it’s possible role in myeloid cell accumulation and activation is not understood. Here we demonstrate that Apoe−/−Il27ra−/− mice fed with “Western Diet” for 7 or 18 weeks developed significantly more atherosclerosis compared to Apoe−/−Il27ra+/− controls. Accelerated disease was driven by enhanced expression of adhesion molecules and chemokines causing the accumulation of immune cells. Myeloid cells produced more inflammatory cytokines and upregulated MHCII. Multiphoton microscopy revealed more efficient interactions between aortic myeloid cells and CD4+ T cells. Overall, we show that IL-27R signaling controls endothelial cells activation and myeloid cell recruitment at early and advanced stages of atherosclerosis. In the absence of IL-27R myeloid cells become hyperactivated, produce pro-inflammatory cytokines and act as more potent antigen presenting cells. Enhanced interactions between Il27ra−/− APC and CD4+ T cells in the aortic wall contribute to T cells re-activation and pro-atherogenic cytokine production.
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56
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Golić N, Veljović K, Popović N, Djokić J, Strahinić I, Mrvaljević I, Terzić-Vidojević A. In vitro and in vivo antagonistic activity of new probiotic culture against Clostridium difficile and Clostridium perfringens. BMC Microbiol 2017; 17:108. [PMID: 28477627 PMCID: PMC5420405 DOI: 10.1186/s12866-017-1015-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 04/26/2017] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Genus Clostridium accompanies more than 200 known species and at least 30 among them are associated with human and animal diseases. At the moment, the treatment of clostridial infections is based on use of antibiotics. However, due to the European ban on the use of antibiotics in livestock production, novel therapeutic strategies for treatment of these hardly curable infections have been evaluated. Hence, in this study the antimicrobial effect of newly designed probiotic culture consisted of natural isolates Lactobacillus helveticus BGRA43, Lactobacillus fermentum BGHI14 and Streptococcus thermophilus BGVLJ1-44 against Clostridium difficile and Clostridium perfringens was analyzed. RESULTS The probiotic culture showed strong in vitro antimicrobial effect on C. difficile (human clinical isolate). In addition, individual strains and the probiotic combination exhibited immunomodulatory activity. The probiotic combination significantly increased the proliferation of GALT lymphocytes. At the other hand, none of the bacterial treatments (individual strains and the combination) induced the production of proinflammatory cytokines IL-6 and IL-1β by intestinal epithelial cells, Caco-2. Interestingly, Caco-2 cells exposed to the probiotic combination produced significantly elevated amount of TGFβ pointing to potential protecting effect of the probiotic. In addition, the results of field trial on spontaneously infected goats revealed reduction of C. perfringens in goats (below the detection threshold) after the probiotic treatment. CONCLUSIONS The results of this study indicated that the novel probiotic deserves to be further investigated as a promising antimicrobial agent against C. difficile and C. perfringens.
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Affiliation(s)
- Nataša Golić
- 0000 0001 2166 9385grid.7149.bLaboratory for Molecular Microbiology (LMM), Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, P. O. Box 23, Belgrade, 11010 Serbia
| | - Katarina Veljović
- 0000 0001 2166 9385grid.7149.bLaboratory for Molecular Microbiology (LMM), Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, P. O. Box 23, Belgrade, 11010 Serbia
| | - Nikola Popović
- 0000 0001 2166 9385grid.7149.bLaboratory for Molecular Microbiology (LMM), Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, P. O. Box 23, Belgrade, 11010 Serbia
- Centre for Development and Production, Veterinary Station “Koker”, Adaševci, Serbia
| | - Jelena Djokić
- 0000 0001 2166 9385grid.7149.bLaboratory for Molecular Microbiology (LMM), Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, P. O. Box 23, Belgrade, 11010 Serbia
| | - Ivana Strahinić
- 0000 0001 2166 9385grid.7149.bLaboratory for Molecular Microbiology (LMM), Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, P. O. Box 23, Belgrade, 11010 Serbia
| | - Igor Mrvaljević
- Centre for Development and Production, Veterinary Station “Koker”, Adaševci, Serbia
| | - Amarela Terzić-Vidojević
- 0000 0001 2166 9385grid.7149.bLaboratory for Molecular Microbiology (LMM), Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, P. O. Box 23, Belgrade, 11010 Serbia
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Hu X, Chen Q, Sowrirajan B, Bosche M, Imamichi T, Sherman BT. Genome-Wide Analyses of MicroRNA Profiling in Interleukin-27 Treated Monocyte-Derived Human Dendritic Cells Using Deep Sequencing: A Pilot Study. Int J Mol Sci 2017; 18:ijms18050925. [PMID: 28452924 PMCID: PMC5454838 DOI: 10.3390/ijms18050925] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 04/20/2017] [Accepted: 04/25/2017] [Indexed: 12/02/2022] Open
Abstract
MicroRNAs (miRNAs) regulate gene expression and thereby influence cell fate and function. Recent studies suggest that an abundant class of miRNAs play important roles in immune cells, such as T cells, natural killer (NK) cells, B cells, and dendritic cells (DCs). Interleukin (IL)-27 is a member of the IL-12 family of cytokines with broad anti-viral effects. It is a potent inhibitor of HIV-1 infection in CD4+ T cells and macrophages, as well as monocyte-derived immature dendritic cells (iDCs). This pilot study compared miRNA profiles between iDCs and IL-27-treated iDCs (27DCs) using deep sequencing methods and identified 46 known miRNAs that were significantly differentially expressed in 27DCs: 36 were upregulated and 10 downregulated by IL-27. Many of the potential target genes of these miRNAs are involved in IL-27 associated pathways, such as JAK/STAT, MAPKs, and PI3K and several were also previously reported to be involved in the regulation of human DC function. This study found that these miRNAs also potentially target several viral genomes and therefore may have antiviral effects. Four of these differential miRNAs (miR-99a-5p, miR-222-3p, miR-138-5p, and miR-125b-5p) were validated using quantitative reverse transcription PCR (RT-qPCR). Twenty-two novel miRNAs were discovered from deep sequencing and confirmed using RT-qPCR. This study furthers the understanding of the role of IL-27 in immunity and lays a foundation for future characterization of the role of specific miRNAs in DCs.
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Affiliation(s)
- Xiaojun Hu
- Laboratory of Human Retrovirology and Immunoinformatics, Applied and Developmental Research Directorate, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA.
| | - Qian Chen
- Laboratory of Human Retrovirology and Immunoinformatics, Applied and Developmental Research Directorate, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA.
| | - Bharatwaj Sowrirajan
- Laboratory of Human Retrovirology and Immunoinformatics, Applied and Developmental Research Directorate, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA.
| | - Marjorie Bosche
- Laboratory of Human Retrovirology and Immunoinformatics, Applied and Developmental Research Directorate, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA.
| | - Tomozumi Imamichi
- Laboratory of Human Retrovirology and Immunoinformatics, Applied and Developmental Research Directorate, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA.
| | - Brad T Sherman
- Laboratory of Human Retrovirology and Immunoinformatics, Applied and Developmental Research Directorate, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA.
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Bockerstett KA, DiPaolo RJ. Regulation of Gastric Carcinogenesis by Inflammatory Cytokines. Cell Mol Gastroenterol Hepatol 2017; 4:47-53. [PMID: 28560288 PMCID: PMC5439239 DOI: 10.1016/j.jcmgh.2017.03.005] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 03/10/2017] [Indexed: 02/07/2023]
Abstract
Chronic inflammation caused by infection with Helicobacter pylori and autoimmune gastritis increases an individual's risk of developing gastric cancer. More than 90% of gastric cancers are adenocarcinomas, which originate from epithelial cells in the chronically inflamed gastric mucosa. However, only a small subset of chronic gastritis patients develops gastric cancer, implying a role for genetic and environmental factors in cancer development. A number of DNA polymorphisms that increase gastric cancer risk have mapped to genes encoding cytokines. Many different cytokines secreted by immune cells and epithelial cells during chronic gastritis have been identified, but a better understanding of how cytokines regulate the severity of gastritis, epithelial cell changes, and neoplastic transformation is needed. This review summarizes studies in both human and mouse models, describing a number of different findings that implicate various cytokines in regulating the development of gastric cancer.
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Affiliation(s)
| | - Richard J. DiPaolo
- Correspondence Address correspondence to: Richard DiPaolo, PhD, 1100 South Grand Boulevard, DRC707, St. Louis, Missouri 63104. fax: (314) 977-8717.1100 South Grand Boulevard, DRC707St. LouisMissouri 63104
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59
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Fabbi M, Carbotti G, Ferrini S. Dual Roles of IL-27 in Cancer Biology and Immunotherapy. Mediators Inflamm 2017; 2017:3958069. [PMID: 28255204 PMCID: PMC5309407 DOI: 10.1155/2017/3958069] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/23/2016] [Accepted: 01/12/2017] [Indexed: 01/09/2023] Open
Abstract
IL-27 is a pleiotropic two-chain cytokine, composed of EBI3 and IL-27p28 subunits, which is structurally related to both IL-12 and IL-6 cytokine families. IL-27 acts through a heterodimer receptor consisting of IL-27Rα (WSX1) and gp130 chains, which mediate signaling predominantly through STAT1 and STAT3. IL-27 was initially reported as an immune-enhancing cytokine that supports CD4+ T cell proliferation, T helper (Th)1 cell differentiation, and IFN-γ production, acting in concert with IL-12. However, subsequent studies demonstrated that IL-27 displays complex immune-regulatory functions, which may result in either proinflammatory or anti-inflammatory effects in relationship to the biological context and experimental models considered. Several pieces of evidence, obtained in preclinical tumor models, indicated that IL-27 has a potent antitumor activity, related not only to the induction of tumor-specific Th1 and cytotoxic T lymphocyte (CTL) responses but also to direct inhibitory effects on tumor cell proliferation, survival, invasiveness, and angiogenic potential. Nonetheless, given its immune-regulatory functions, the effects of IL-27 on cancer may be dual and protumor effects may also occur. Here, we will summarize IL-27 biological activities and its functional overlaps with the IFNs and discuss its dual role in tumors in the light of potential applications to cancer immunotherapy.
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Affiliation(s)
- Marina Fabbi
- Laboratory of Biotherapy, IRCCS AOU San Martino-IST, Istituto Nazionale per la Ricerca sul Cancro, 16132 Genoa, Italy
| | - Grazia Carbotti
- Laboratory of Biotherapy, IRCCS AOU San Martino-IST, Istituto Nazionale per la Ricerca sul Cancro, 16132 Genoa, Italy
| | - Silvano Ferrini
- Laboratory of Biotherapy, IRCCS AOU San Martino-IST, Istituto Nazionale per la Ricerca sul Cancro, 16132 Genoa, Italy
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Yang B, Suwanpradid J, Sanchez-Lagunes R, Choi HW, Hoang P, Wang D, Abraham SN, MacLeod AS. IL-27 Facilitates Skin Wound Healing through Induction of Epidermal Proliferation and Host Defense. J Invest Dermatol 2017; 137:1166-1175. [PMID: 28132857 PMCID: PMC5552041 DOI: 10.1016/j.jid.2017.01.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 12/20/2016] [Accepted: 01/04/2017] [Indexed: 11/17/2022]
Abstract
Skin wound repair requires a coordinated program of epithelial cell proliferation and differentiation as well as resistance to invading microbes. However, the factors that trigger epithelial cell proliferation in this inflammatory process are incompletely understood. In this study, we demonstrate that IL-27 is rapidly and transiently produced by CD301b+ cells in the skin after injury. The functional role of IL-27 and CD301b+ cells is demonstrated by the finding that CD301b-depleted mice exhibit delayed wound closure in vivo, which could be rescued by topical IL-27 treatment. Furthermore, genetic ablation of the IL-27 receptor (Il27Ra−/−) attenuates wound healing, suggesting an essential role for IL-27 signaling in skin regeneration in vivo. Mechanistically, IL-27 feeds back on keratinocytes to stimulate cell proliferation and re-epithelialization in the skin, whereas IL-27 leads to suppression of keratinocyte terminal differentiation. Finally, we identify that IL-27 potently increases expression of the antiviral oligoadenylate synthetase 2, but does not affect expression of antibacterial human beta defensin 2 or regenerating islet-derived protein 3-alpha. Together, our data suggest a previously unrecognized role for IL-27 in regulating epithelial cell proliferation and antiviral host defense during the normal wound healing response.
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Affiliation(s)
- Bin Yang
- Department of Dermatology, Duke University School of Medicine, Durham, North Carolina, USA; Department of Dermatology, Wuhan General Hospital of Guangzhou Command, Wuhan, China
| | - Jutamas Suwanpradid
- Department of Dermatology, Duke University School of Medicine, Durham, North Carolina, USA
| | | | - Hae Woong Choi
- Department of Pathology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Peter Hoang
- Department of Dermatology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Donghai Wang
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA; Department of Immunology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Soman N Abraham
- Department of Pathology, Duke University School of Medicine, Durham, North Carolina, USA; Department of Immunology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Amanda S MacLeod
- Department of Dermatology, Duke University School of Medicine, Durham, North Carolina, USA; Department of Immunology, Duke University School of Medicine, Durham, North Carolina, USA.
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61
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Cui B, Lu S, Lai L, Xie Y, He J, Xue Y, Xiao P, Pan T, Chen L, Liu Y, Cao X, Wang Q. Protective function of interleukin 27 in colitis-associated cancer via suppression of inflammatory cytokines in intestinal epithelial cells. Oncoimmunology 2017; 6:e1268309. [PMID: 28344880 DOI: 10.1080/2162402x.2016.1268309] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 11/22/2016] [Accepted: 11/30/2016] [Indexed: 12/13/2022] Open
Abstract
Numerous studies have demonstrated that inflammation contributes to a variety of cancer formation, among them, colitis-associated cancer (CAC) represents a typical inflammation-related cancer. Interleukin 27 (IL-27) has been demonstrated to play an important role in inflammation-related disease. The effect of IL-27 in intestinal inflammation is controversial and its role in CAC is not elucidated yet. In our present study, we found that IL-27 has protective function in murine model of CAC through suppression of inflammatory cytokines in intestinal epithelial cells (IECs). IL-27Rα (WSX-1) deficiency promotes the CAC development in mice, which is driven by enhanced tumor cell proliferation, more intensive myeloid-derived suppressor cells (MDSC) accumulation in colon lamina propria and higher level of inflammatory cytokines and chemokines in IECs. The levels of IL-6, TNF-α, GM-CSF and CXCL1 triggered in vitro by toll-like receptor ligands are significantly upregulated in IECs from WSX-1 KO mice. Removal of commensal microorganism through antibiotic treatment in mice to eliminate TLR ligands deprives the protective function of IL-27 on CAC tumor growth. Thus, IL-27 suppresses CAC formation through an anti-inflammation mechanism targeting IECs and in turn resists the tumorigenesis. Hence, our study explained how IL-27 exerts its anti-inflammatory function on epithelial cells to fight against chronic-inflammation-associated cancer, which might provide new insights on the potential therapeutic strategies for cancer.
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Affiliation(s)
- Bijun Cui
- Institute of Immunology, Zhejiang University School of Medicine , Hangzhou, China
| | - Shen Lu
- Institute of Immunology, Zhejiang University School of Medicine , Hangzhou, China
| | - Lihua Lai
- Institute of Immunology, Zhejiang University School of Medicine , Hangzhou, China
| | - Yiwei Xie
- Institute of Immunology, Zhejiang University School of Medicine , Hangzhou, China
| | - Jia He
- Institute of Immunology, Zhejiang University School of Medicine , Hangzhou, China
| | - Yue Xue
- Institute of Immunology, Zhejiang University School of Medicine , Hangzhou, China
| | - Peng Xiao
- Institute of Immunology, Zhejiang University School of Medicine , Hangzhou, China
| | - Ting Pan
- Institute of Immunology, Zhejiang University School of Medicine , Hangzhou, China
| | - Luoquan Chen
- Institute of Immunology, Zhejiang University School of Medicine , Hangzhou, China
| | - Yang Liu
- Institute of Immunology, Zhejiang University School of Medicine , Hangzhou, China
| | - Xuetao Cao
- Institute of Immunology, Zhejiang University School of Medicine, Hangzhou, China; National Key Laboratory of Medical Molecular Biology and Department of Immunology, Chinese Academy of Medical Sciences, Beijing, China
| | - Qingqing Wang
- Institute of Immunology, Zhejiang University School of Medicine , Hangzhou, China
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Norouzinia M, Chaleshi V, Alizadeh AHM, Zali MR. Biomarkers in inflammatory bowel diseases: insight into diagnosis, prognosis and treatment. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH 2017; 10:155-167. [PMID: 29118930 PMCID: PMC5660264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Inflammatory bowel disease (IBD) is a chronic disease of unknown etiology which mostly involves the intestine and requires a personalized approach for treatment. IBD represents a heterogeneous group of patients with inherently variable disease courses. Hence, the heterogeneity of patient populations may delay the diagnosis, clinical practice and initiation of appropriate treatment. Use of biomarkers for diagnosis and management of IBD is still necessary. Descriptions of the immunological pathway abnormalities in IBD improve assessment to identify the patient's disease status, and relative risk of progression to complicated disease behaviors, and this information may ultimately influence therapeutic decisions. In this study, we try to explain the role of biomarkers in early diagnosis, estimating prognosis, and target agents for correct managements of IBD's patients. This information might be important to provide insight into emerging panels of multiple IBD biomarkers and highlighting the essential role of personalizes panel for each patient.
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Affiliation(s)
- Mohsen Norouzinia
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Chaleshi
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir Houshang Mohammad Alizadeh
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Hernández-Chirlaque C, Aranda CJ, Ocón B, Capitán-Cañadas F, Ortega-González M, Carrero JJ, Suárez MD, Zarzuelo A, Sánchez de Medina F, Martínez-Augustin O. Germ-free and Antibiotic-treated Mice are Highly Susceptible to Epithelial Injury in DSS Colitis. J Crohns Colitis 2016; 10:1324-1335. [PMID: 27117829 DOI: 10.1093/ecco-jcc/jjw096] [Citation(s) in RCA: 161] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 04/22/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Intestinal microbiota is required to maintain immune homeostasis and intestinal barrier function. At the same time, intraluminal bacteria are considered to be involved in inflammatory bowel disease and are required for colitis induction in animal models, with the possible exception of dextran sulphate sodium [DSS] colitis. This study was carried out to ascertain the mechanism underlying the induction of colitis by DSS in the absence of bacteria. METHODS Conventional and germ-free [GF] Naval Medical Research Institute [NMRI] mice were used, plus conventional mice treated with an antibiotic cocktail to deplete the intestinal microbiota ['pseudo-GF' or PGF mice]. The differential response to DSS was assessed. RESULTS Conventional mice developed DSS-induced colitis normally, whereas GF mice showed only minimal inflammation [no colonic thickening, lower myeloperoxidase activity, IL-6, IL-17, TNF-α, and IFN-γ secretion by splenocytes and mesenteric cell cultures, etc.]. However, these mice suffered enhanced haemorrhage, epithelial injury and mortality as a consequence of a weakened intestinal barrier, as shown by lower occludin, claudin 4, TFF3, MUC3, and IL-22. In contrast, PGF mice had a relatively normal, albeit attenuated, inflammatory response, but were less prone to haemorrhage and epithelial injury than GF mice. This was correlated with an increased expression of IL-10 and Foxp3 and preservation barrier-related markers. CONCLUSIONS We conclude that enteric bacteria are essential for the development of normal DSS-induced colitis. The absence of microbiota reduces DSS colonic inflammation dramatically but it also impairs barrier function, whereas subtotal microbiota depletion has intermediate effects at both levels.
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Affiliation(s)
- Cristina Hernández-Chirlaque
- Department of Biochemistry and Molecular Biology II, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd], University of Granada, Granada, Spain
| | - Carlos J Aranda
- Department of Biochemistry and Molecular Biology II, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd], University of Granada, Granada, Spain
| | - Borja Ocón
- Department of Pharmacology, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd], University of Granada, Granada, Spain
| | - Fermín Capitán-Cañadas
- Department of Biochemistry and Molecular Biology II, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd], University of Granada, Granada, Spain
| | - Mercedes Ortega-González
- Department of Biochemistry and Molecular Biology II, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd], University of Granada, Granada, Spain
| | | | - María Dolores Suárez
- Department of Biochemistry and Molecular Biology II, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd], University of Granada, Granada, Spain
| | - Antonio Zarzuelo
- Department of Pharmacology, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd], University of Granada, Granada, Spain
| | - Fermín Sánchez de Medina
- Department of Pharmacology, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd], University of Granada, Granada, Spain
| | - Olga Martínez-Augustin
- Department of Biochemistry and Molecular Biology II, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd], University of Granada, Granada, Spain
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Heikkilä O, Nygårdas M, Paavilainen H, Ryödi E, Hukkanen V. Interleukin-27 Inhibits Herpes Simplex Virus Type 1 Infection by Activating STAT1 and 3, Interleukin-6, and Chemokines IP-10 and MIG. J Interferon Cytokine Res 2016; 36:617-629. [DOI: 10.1089/jir.2016.0015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Outi Heikkilä
- Department of Virology, University of Turku, Turku, Finland
| | | | - Henrik Paavilainen
- Department of Virology, University of Turku, Turku, Finland
- Drug Research Doctoral Programme, University of Turku, Turku, Finland
| | - Elina Ryödi
- Department of Virology, University of Turku, Turku, Finland
| | - Veijo Hukkanen
- Department of Virology, University of Turku, Turku, Finland
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Qiu J, Yan Z, Tao K, Li Y, Li Y, Li J, Dong Y, Feng D, Chen H. Sinomenine activates astrocytic dopamine D2 receptors and alleviates neuroinflammatory injury via the CRYAB/STAT3 pathway after ischemic stroke in mice. J Neuroinflammation 2016; 13:263. [PMID: 27724964 PMCID: PMC5057372 DOI: 10.1186/s12974-016-0739-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 09/29/2016] [Indexed: 12/03/2022] Open
Abstract
Background Astrocyte-mediated neuroinflammation plays a critical role in ischemic stroke-induced secondary cerebral injury. Previous studies have suggested that the dopamine D2 receptor (DRD2) acts as a key target in regulating the neuroinflammatory response. However, the underlying molecular mechanisms are still unknown, and effective DRD2 agonists are lacking. In the present study, we examined the anti-inflammatory and neuroprotective effects of sinomenine (Sino), a monomeric compound with potential immunoregulatory properties in nervous system. Methods TTC staining, apoptosis assay, evaluation of brain edema, and neurological assessment were performed in the middle cerebral artery occlusion (MCAO) mouse model. Primary astrocytes exposed to oxygen glucose deprivation (OGD) were used in the in vitro experiments. Quantitative PCR was applied to assess the levels of inflammatory cytokines. Multi-labeling immunofluorescence, Western blot, co-immunoprecipitation, and electrophoretic mobility shift assay (EMSA) were also used to investigate the molecular mechanisms underlying the Sino-mediated anti-inflammatory effects in vivo and in vitro. Results Sino remarkably attenuated the cerebral infarction and neuronal apoptosis, reduced the levels of inflammatory cytokines, and alleviated neurological deficiency in MCAO mice. Sino significantly inhibited astrocytic activation and STAT3 phosphorylation as well as increased DRD2 and αB-crystallin (CRYAB) expression after MCAO. In vitro, Sino blocked OGD-induced activation of STAT3 and generation of pro-inflammatory cytokines in primary astrocytes, and these effects were significantly abolished by either DRD2 or CRYAB knockdown. Additionally, Sino induced up-regulation and nuclear translocation of CRYAB in astrocytes and enhanced the interaction between CRYAB and STAT3, which further inhibited the activation and DNA-binding activity of STAT3. Conclusions Our study demonstrates that Sino activates astrocytic DRD2 and thereby suppresses neuroinflammation via the CRYAB/STAT3 pathway, which sheds some light on a promising therapeutic strategy for ischemic stroke. Electronic supplementary material The online version of this article (doi:10.1186/s12974-016-0739-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jing Qiu
- Department of Neurology, The General Hospital of Shenyang Military Region, Shenyang, Liaoning, 110016, People's Republic of China
| | - Zhongjun Yan
- Department of Neurosurgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, 710038, People's Republic of China
| | - Kai Tao
- Department of Neurosurgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, 710038, People's Republic of China
| | - Yansong Li
- Department of Neurology, The 463rd Hospital of PLA, Shenyang, Liaoning, 110042, People's Republic of China
| | - Yuqian Li
- Department of Neurosurgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, 710038, People's Republic of China
| | - Jingchen Li
- Department of Neurosurgery, The General Hospital of Shenyang Military Region, Shenyang, Liaoning, 110016, People's Republic of China
| | - Yushu Dong
- Department of Neurosurgery, The General Hospital of Shenyang Military Region, Shenyang, Liaoning, 110016, People's Republic of China
| | - Dayun Feng
- Department of Neurosurgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, 710038, People's Republic of China.
| | - Huisheng Chen
- Department of Neurology, The General Hospital of Shenyang Military Region, Shenyang, Liaoning, 110016, People's Republic of China.
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Jung J, Gleave Parson M, Kraft JD, Lyda L, Kobe B, Davis C, Robinson J, Peña MMO, Robinson CM. Elevated interleukin-27 levels in human neonatal macrophages regulate indoleamine dioxygenase in a STAT-1 and STAT-3-dependent manner. Immunology 2016; 149:35-47. [PMID: 27238498 PMCID: PMC4981608 DOI: 10.1111/imm.12625] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 05/24/2016] [Accepted: 05/27/2016] [Indexed: 12/12/2022] Open
Abstract
Microbial infections are a major cause of infant mortality as a result of limitations in immune defences. Interleukin-27 (IL-27) is a heterodimeric cytokine produced primarily by leucocytes and is immunosuppressive toward lymphocytes and leucocytes. Our laboratory demonstrated that human neonatal macrophages express IL-27 more abundantly than adult macrophages. Similarly in mice, IL-27 expression is elevated early in life and maintained through infancy. To determine IL-27-regulated mechanisms that may limit immunity, we evaluated the expression of a number of genes in response to this cytokine in primary human neonatal macrophages. Indoleamine 2,3-dioxygenase (IDO) gene expression was increased dose-responsively by IL-27. We have previously demonstrated inhibition of T-cell proliferation and cytokine production by neonatal macrophage-generated IL-27, and IDO is often implicated in this negative regulation. An increase in IDO protein was demonstrated by immunofluorescence microscopy and was consistent with increased enzyme activity following treatment with IL-27. Inclusion of a soluble receptor to neutralize endogenous IL-27, decreased IDO expression and activity compared with untreated macrophages. In response to IL-27, neonatal macrophages phosphorylate signal transdcuer and activator of transcription 1 (STAT-1) and STAT-3. Both transcription factors are recruited to the IDO regulatory region. STAT-3 dominates during steady-state regulation by lower levels of endogenous IL-27 production. A shift to enhanced STAT-1 recruitment occurs during increased levels of exogenously supplied IL-27. These data suggest an interesting interplay of STAT-1 and STAT-3 to regulate IDO activity and immunosuppression in response to different levels of IL-27 in the microenvironment of the immune response that may further our understanding of this interesting cytokine.
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Affiliation(s)
- Joo‐Yong Jung
- Department of BiologyBriar Cliff UniversitySioux CityIAUSA
| | - Madeline Gleave Parson
- Biomedical Sciences DepartmentWest Virginia School of Osteopathic MedicineLewisburgWVUSA
| | - Jennifer D. Kraft
- Department of Pathology Microbiology and ImmunologyUniversity of South Carolina School of MedicineColumbiaSCUSA
| | - Logan Lyda
- Biomedical Sciences DepartmentWest Virginia School of Osteopathic MedicineLewisburgWVUSA
| | - Brianna Kobe
- Biomedical Sciences DepartmentWest Virginia School of Osteopathic MedicineLewisburgWVUSA
| | - Celestia Davis
- Department of Biological SciencesUniversity of South CarolinaColumbiaSCUSA
- Center for Colon Cancer ResearchUniversity of South CarolinaColumbiaSCUSA
| | - Jembber Robinson
- Department of Pathology Microbiology and ImmunologyUniversity of South Carolina School of MedicineColumbiaSCUSA
| | - Maria Marjorette O. Peña
- Department of Biological SciencesUniversity of South CarolinaColumbiaSCUSA
- Center for Colon Cancer ResearchUniversity of South CarolinaColumbiaSCUSA
| | - Cory M. Robinson
- Biomedical Sciences DepartmentWest Virginia School of Osteopathic MedicineLewisburgWVUSA
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Abstract
Inflammatory bowel disease (IBD) is an inflammatory disorder of the intestine that affects an estimated 329 per 100,000 people in the United States and is increasing in incidence within a number of cultures worldwide. Likely due to its incompletely understood pathophysiology and etiology, the standard treatments for IBD are only efficacious in subsets of patients and often do not induce lasting remission. As a result, novel therapies are needed. The success of anti-tumor necrosis factor-α treatment in a subset of patients with IBD demonstrated that therapy targeting a single cytokine could be efficacious in IBD, and clinical trials investigating the blockade of a variety of cytokines have commenced. Interleukin (IL) 27 is a relatively recently discovered type I cytokine with established roles in infectious disease, autoimmunity, and cancer in a variety of organs. IL-27 was identified as a candidate gene for IBD, and a number of studies in mouse models of IBD have demonstrated that IL-27 therapy is protective. However, in contrast to these investigations, genetic deletion of the IL-27 receptor has been shown to be protective in some mouse models of IBD. The purpose of this review is to highlight the recent literature investigating the role of IL-27 in IBD and to discuss the possible explanations for the sometimes conflicting results of these studies. Evidence supporting IL-27 therapy as a treatment for IBD will also be discussed.
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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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69
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Zhou LW, Ma N, Li Z, Feng BS. Role of interleukin-27 in inflammatory bowel disease. Shijie Huaren Xiaohua Zazhi 2016; 24:549-557. [DOI: 10.11569/wcjd.v24.i4.549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel disease (IBD), which is characterized by chronic or recurrent relapsing gastrointestinal inflammation, includes ulcerative colitis (UC) and Crohn's disease (CD). The pathogenesis of IBD remains obscure, however, abnormal immune responses are regarded as the major component of IBD pathogenesis. Interleukin-27 (IL-27) is a new member of the IL-12 family, and it is produced by activated antigen-presenting cells and plays an important role in the differentiation and function of different T cell subsets. IL-27 has various immunoregulatory functions and is implicated in the pathogenesis of many infectious and autoimmune diseases. Recent studies have showed that IL-27 is strongly associated with the genesis and development of IBD. Here we provide an overview of the role of IL-27 in the pathogenesis of IBD.
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Mann ER, Bernardo D, English NR, Landy J, Al-Hassi HO, Peake STC, Man R, Elliott TR, Spranger H, Lee GH, Parian A, Brant SR, Lazarev M, Hart AL, Li X, Knight SC. Compartment-specific immunity in the human gut: properties and functions of dendritic cells in the colon versus the ileum. Gut 2016; 65:256-70. [PMID: 25666191 PMCID: PMC4530083 DOI: 10.1136/gutjnl-2014-307916] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 11/27/2014] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Dendritic cells (DC) mediate intestinal immune tolerance. Despite striking differences between the colon and the ileum both in function and bacterial load, few studies distinguish between properties of immune cells in these compartments. Furthermore, information of gut DC in humans is scarce. We aimed to characterise human colonic versus ileal DC. DESIGN Human DC from paired colonic and ileal samples were characterised by flow cytometry, electron microscopy or used to stimulate T cell responses in a mixed leucocyte reaction. RESULTS A lower proportion of colonic DC produced pro-inflammatory cytokines (tumour necrosis factor-α and interleukin (IL)-1β) compared with their ileal counterparts and exhibited an enhanced ability to generate CD4(+)FoxP3(+)IL-10(+) (regulatory) T cells. There were enhanced proportions of CD103(+)Sirpα(-) DC in the colon, with increased proportions of CD103(+)Sirpα(+) DC in the ileum. A greater proportion of colonic DC subsets analysed expressed the lymph-node-homing marker CCR7, alongside enhanced endocytic capacity, which was most striking in CD103(+)Sirpα(+) DC. Expression of the inhibitory receptor ILT3 was enhanced on colonic DC. Interestingly, endocytic capacity was associated with CD103(+) DC, in particular CD103(+)Sirpα(+) DC. However, expression of ILT3 was associated with CD103(-) DC. Colonic and ileal DC differentially expressed skin-homing marker CCR4 and small-bowel-homing marker CCR9, respectively, and this corresponded to their ability to imprint these homing markers on T cells. CONCLUSIONS The regulatory properties of colonic DC may represent an evolutionary adaptation to the greater bacterial load in the colon. The colon and the ileum should be regarded as separate entities, each comprising DC with distinct roles in mucosal immunity and imprinting.
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Affiliation(s)
- Elizabeth R Mann
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK,Department of Medicine, Division of Gastroenterology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - David Bernardo
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK
| | - Nicholas R English
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK
| | - Jon Landy
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK,St. Mark's Hospital, North West London Hospitals NHS Trust, Harrow, UK
| | - Hafid O Al-Hassi
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK
| | - Simon TC Peake
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK,St. Mark's Hospital, North West London Hospitals NHS Trust, Harrow, UK
| | - Ripple Man
- St. Mark's Hospital, North West London Hospitals NHS Trust, Harrow, UK
| | - Timothy R Elliott
- St. Mark's Hospital, North West London Hospitals NHS Trust, Harrow, UK
| | - Henning Spranger
- St. Mark's Hospital, North West London Hospitals NHS Trust, Harrow, UK
| | - Gui Han Lee
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK
| | - Alyssa Parian
- Department of Medicine, Division of Gastroenterology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Steven R Brant
- Department of Medicine, Division of Gastroenterology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Mark Lazarev
- Department of Medicine, Division of Gastroenterology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ailsa L Hart
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK,St. Mark's Hospital, North West London Hospitals NHS Trust, Harrow, UK
| | - Xuhang Li
- Department of Medicine, Division of Gastroenterology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Stella C Knight
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK
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Regulation and Immune Function of IL-27. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 941:191-211. [DOI: 10.1007/978-94-024-0921-5_9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Zamani F, Almasi S, Kazemi T, Jahanban Esfahlan R, Aliparasti MR. New Approaches to the Immunotherapy of Type 1 Diabetes Mellitus Using Interleukin-27. Adv Pharm Bull 2015; 5:599-603. [PMID: 26793604 DOI: 10.15171/apb.2015.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 06/22/2014] [Accepted: 07/02/2015] [Indexed: 12/21/2022] Open
Abstract
Type 1 diabetes (T1D) is a pancreatic beta cell specific autoimmune disease. One of the most significant current discussions in T1D studies is therapy. Since the conventional therapy, islet transplantation and external insulin, e.g., cannot prevent the destructive autoimmune process against original beta cells and persistent hyperglycemia remains, so recent developments in the field of T1D therapy paved the way to a renewed interest in immunotherapy based on the disease process, especially monoclonal antibody therapy. Due to encouraging laboratory results, cytokine antibody-based drugs could be effective in the clinical direction of the T1D disease process. Hence, implementation of this approach can be useful to improve clinical and laboratory manifestations of T1D.
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Affiliation(s)
- Fatemeh Zamani
- Immunology Research Center (IRC), Tabriz University of Medical Sciences, Tabriz, Iran. ; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shohreh Almasi
- Immunology Research Center (IRC), Tabriz University of Medical Sciences, Tabriz, Iran. ; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Tohid Kazemi
- Immunology Research Center (IRC), Tabriz University of Medical Sciences, Tabriz, Iran. ; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Rana Jahanban Esfahlan
- Department of Medical Biotechnology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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Role of Calprotectin as a Modulator of the IL27-Mediated Proinflammatory Effect on Endothelial Cells. Mediators Inflamm 2015; 2015:737310. [PMID: 26663990 PMCID: PMC4664814 DOI: 10.1155/2015/737310] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 10/21/2015] [Indexed: 01/05/2023] Open
Abstract
An underlying endothelial dysfunction plays a fundamental role in the pathogenesis of cardiovascular events and is the central feature of atherosclerosis. The protein-based communication between leukocytes and inflamed endothelial cells leading to diapedesis has been largely investigated and several key players such as IL6, TNFα, or the damage associated molecular pattern molecule (DAMP) calprotectin are now well identified. However, regarding cytokine IL27, the controversial current knowledge about its inflammatory role and the involved regulatory elements requires clarification. Therefore, we examined the inflammatory impact of IL27 on primary endothelial cells and the potentially modulatory effect of calprotectin on both transcriptome and proteome levels. A qPCR-based screening demonstrated high IL27-mediated gene expression of IL7, IL15, CXCL10, and CXCL11. Calprotectin time-dependent downregulatory effects were observed on IL27-induced IL15 and CXCL10 gene expression. A mass spectrometry-based approach of IL27 ± calprotectin cell stimulation enlightened a calprotectin modulatory role in the expression of 28 proteins, mostly involved in the mechanism of leukocyte transmigration. Furthermore, we showed evidence for STAT1 involvement in this process. Our findings provide new evidence about the IL27-dependent proinflammatory signaling which may be under the control of calprotectin and highlight the need for further investigations on molecules which might have antiatherosclerotic functions.
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Hainzl E, Stockinger S, Rauch I, Heider S, Berry D, Lassnig C, Schwab C, Rosebrock F, Milinovich G, Schlederer M, Wagner M, Schleper C, Loy A, Urich T, Kenner L, Han X, Decker T, Strobl B, Müller M. Intestinal Epithelial Cell Tyrosine Kinase 2 Transduces IL-22 Signals To Protect from Acute Colitis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2015; 195:5011-24. [PMID: 26432894 PMCID: PMC4635564 DOI: 10.4049/jimmunol.1402565] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 09/07/2015] [Indexed: 12/12/2022]
Abstract
In the intestinal tract, IL-22 activates STAT3 to promote intestinal epithelial cell (IEC) homeostasis and tissue healing. The mechanism has remained obscure, but we demonstrate that IL-22 acts via tyrosine kinase 2 (Tyk2), a member of the Jak family. Using a mouse model for colitis, we show that Tyk2 deficiency is associated with an altered composition of the gut microbiota and exacerbates inflammatory bowel disease. Colitic Tyk2(-/-) mice have less p-STAT3 in colon tissue and their IECs proliferate less efficiently. Tyk2-deficient primary IECs show reduced p-STAT3 in response to IL-22 stimulation, and expression of IL-22-STAT3 target genes is reduced in IECs from healthy and colitic Tyk2(-/-) mice. Experiments with conditional Tyk2(-/-) mice reveal that IEC-specific depletion of Tyk2 aggravates colitis. Disease symptoms can be alleviated by administering high doses of rIL-22-Fc, indicating that Tyk2 deficiency can be rescued via the IL-22 receptor complex. The pivotal function of Tyk2 in IL-22-dependent colitis was confirmed in Citrobacter rodentium-induced disease. Thus, Tyk2 protects against acute colitis in part by amplifying inflammation-induced epithelial IL-22 signaling to STAT3.
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Affiliation(s)
- Eva Hainzl
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna, 1210 Vienna, Austria
| | - Silvia Stockinger
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna, 1210 Vienna, Austria;
| | - Isabella Rauch
- Max F. Perutz Laboratories, University of Vienna, 1030 Vienna, Austria; Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720
| | - Susanne Heider
- Ludwig Boltzmann Institute for Cancer Research, 1090 Vienna, Austria
| | - David Berry
- Department of Microbiology and Ecosystem Science, University of Vienna, 1090 Vienna, Austria
| | - Caroline Lassnig
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna, 1210 Vienna, Austria; Biomodels Austria, University of Veterinary Medicine, Vienna, 1210 Vienna, Austria
| | - Clarissa Schwab
- Department of Ecogenomics and Systems Biology, University of Vienna, 1090 Vienna, Austria
| | - Felix Rosebrock
- Max F. Perutz Laboratories, University of Vienna, 1030 Vienna, Austria
| | - Gabriel Milinovich
- Department of Ecogenomics and Systems Biology, University of Vienna, 1090 Vienna, Austria
| | | | - Michael Wagner
- Department of Microbiology and Ecosystem Science, University of Vienna, 1090 Vienna, Austria
| | - Christa Schleper
- Department of Ecogenomics and Systems Biology, University of Vienna, 1090 Vienna, Austria
| | - Alexander Loy
- Department of Microbiology and Ecosystem Science, University of Vienna, 1090 Vienna, Austria
| | - Tim Urich
- Department of Ecogenomics and Systems Biology, University of Vienna, 1090 Vienna, Austria
| | - Lukas Kenner
- Ludwig Boltzmann Institute for Cancer Research, 1090 Vienna, Austria; Institute for Clinical Pathology, Medical University Vienna, 1090 Vienna, Austria; Unit of Pathology of Laboratory Animals, University of Veterinary Medicine, Vienna, 1210 Vienna, Austria; and
| | - Xiaonan Han
- Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| | - Thomas Decker
- Max F. Perutz Laboratories, University of Vienna, 1030 Vienna, Austria
| | - Birgit Strobl
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna, 1210 Vienna, Austria
| | - Mathias Müller
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna, 1210 Vienna, Austria; Biomodels Austria, University of Veterinary Medicine, Vienna, 1210 Vienna, Austria;
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Syndecan-1 Acts in Synergy with Tight Junction Through Stat3 Signaling to Maintain Intestinal Mucosal Barrier and Prevent Bacterial Translocation. Inflamm Bowel Dis 2015; 21:1894-907. [PMID: 25970544 DOI: 10.1097/mib.0000000000000421] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Intestinal epithelial tight junction (TJ) is the principal determinant of mucosal permeability, defects of which have been correlated to inflammatory bowel disease. In this study, we investigated whether syndecan-1 (Sdc1), the predominant cell surface heparan sulfate proteoglycan, affects TJ proteins to protect intestinal barrier function. METHODS The role of Sdc1 in barrier function was examined in cultured colonic epithelial cells and dextran sodium sulfate-induced colitis mouse model. Barrier function was determined by transepithelial electrical resistance, bacterial translocation, and FITC-dextran flux. Canonical TJ proteins ZO-1 and occludin were measured by Western blot and immunofluoresence. Role of the Stat3 pathway was detected by Western blot and chromatin immunoprecipitation. RESULTS Overexpressed Sdc1 in Caco-2 cells attenuated transepithelial electrical resistance reduction, prevented bacterial translocation, and repressed FITC-dextran flux, whereas Sdc1 knockdown in HT29 cells resulted in a greater loss of barrier function. Supplementation of exogenous Sdc1 in colitis mice ameliorated the activity of colitis and barrier defect. Mechanistically, Sdc1 significantly modulated expressions of ZO-1 and occludin by activating Stat3, which directly bound to the promoter regions of ZO-1 and occludin. Furthermore, ZO-1 and occludin were found to bind to each other, and their repression could induce Sdc1 upregulation. CONCLUSIONS Sdc1 plays an important role in protecting the intestinal barrier function and preventing bacterial translocation, in synergy with TJ through Stat3 signaling in an Sdc1/Stat3/ZO-1 and occludin feedback loop. Sdc1 participates in the mechanism that is related to intestinal barrier function and colitis and represents a therapeutic target for novel anti-inflammatory bowel disease strategies.
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Abstract
Signal transducer and activators of transcription-3 (STAT3) regulates diverse biological functions including cell growth, differentiation, and apoptosis. In addition, STAT3 plays a key role in regulating host immune and inflammatory responses and in the pathogenesis of many cancers. Several studies reported differential regulation of STAT3 in a range of viral infections. Interestingly, STAT3 appears to direct seemingly contradictory responses and both pro- and antiviral roles of STAT3 have been described. This review summarized the currently known functions of STAT3 in the regulation of viral replication and pathogenesis of viral infections. Some of the key unanswered questions and the gap in our current understanding of the role of STAT3 in viral pathogenesis are discussed.
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Affiliation(s)
- Hiroki Yoshida
- Department of Biomolecular Sciences, Division of Molecular and Cellular Immunoscience, Saga University Faculty of Medicine, Saga 849-8501, Japan;
| | - Christopher A. Hunter
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104-4539;
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Leal RF, Planell N, Kajekar R, Lozano JJ, Ordás I, Dotti I, Esteller M, Masamunt MC, Parmar H, Ricart E, Panés J, Salas A. Identification of inflammatory mediators in patients with Crohn's disease unresponsive to anti-TNFα therapy. Gut 2015; 64:233-42. [PMID: 24700437 DOI: 10.1136/gutjnl-2013-306518] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Anti-tumour necrosis factor α (TNFα) therapy effectively induces and maintains remission in Crohn's disease (CD). Up to 40% of patients, however, fail to respond to anti-TNFα. OBJECTIVE To identify the mechanisms underlying the persistence of mucosal lesions in patients who fail to respond to anti-TNFα therapy. DESIGN An observational study based on whole-genome transcriptional analysis was carried out using intestinal biopsy specimens from patients with CD receiving (n=12) or not (n=10) anti-TNFα therapy. The transcriptional signature of responders was compared with that of non-responders after anti-TNFα therapy. Controls with non-inflammatory bowel disease (non-IBD) (n=17) were used for comparisons. Genes of interest were validated by real-time RT-PCR in an independent cohort of patients with CD receiving (n=17) or not (n=16) anti-TNFα and non-IBD controls (n=7). RESULTS We confirmed that response to anti-TNFα is accompanied by significant regulation of a large number of genes, including IL1B, S100A8, CXCL1, which correlated with endoscopic activity. Remarkably, patients who failed to respond to anti-TNFα showed a mixed signature, maintaining increased expression of IL1B, IL17A and S100A8, while showing significant modulation of other genes commonly upregulated in active CD, including IL6 and IL23p19. CONCLUSIONS Our results show that anti-TNFα therapy significantly downregulates a subset of inflammatory genes even in patients who fail to achieve endoscopic remission, suggesting that these genes may not be dominant in driving inflammation in non-responders. On the other hand, we identified IL1B and IL17A as genes that remained altered in non-responders, pointing to potentially more relevant targets for modulating mucosal damage in refractory patients.
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Affiliation(s)
- Raquel Franco Leal
- Department of Gastroenterology, IDIBAPS, Hospital Clínic, CIBERehd, Barcelona, Spain Postdoctoral CAPES fellow, Brazil
| | - Núria Planell
- Department of Gastroenterology, IDIBAPS, Hospital Clínic, CIBERehd, Barcelona, Spain Bioinformatics Platform, CIBERehd, Barcelona, Spain
| | - Radhika Kajekar
- Hoffmann-La Roche, Nutley, New Jersey, USA Novartis Pharmaceuticals Corporation, East Hanover, New Jersey, USA
| | | | - Ingrid Ordás
- Department of Gastroenterology, IDIBAPS, Hospital Clínic, CIBERehd, Barcelona, Spain
| | - Isabella Dotti
- Department of Gastroenterology, IDIBAPS, Hospital Clínic, CIBERehd, Barcelona, Spain
| | - Miriam Esteller
- Department of Gastroenterology, IDIBAPS, Hospital Clínic, CIBERehd, Barcelona, Spain
| | - M Carme Masamunt
- Department of Gastroenterology, IDIBAPS, Hospital Clínic, CIBERehd, Barcelona, Spain
| | - Harsukh Parmar
- Hoffmann-La Roche, Nutley, New Jersey, USA EMD Serono Research & Development Institute, Boston, Massachusetts, USA
| | - Elena Ricart
- Department of Gastroenterology, IDIBAPS, Hospital Clínic, CIBERehd, Barcelona, Spain
| | - Julián Panés
- Department of Gastroenterology, IDIBAPS, Hospital Clínic, CIBERehd, Barcelona, Spain
| | - Azucena Salas
- Department of Gastroenterology, IDIBAPS, Hospital Clínic, CIBERehd, Barcelona, Spain
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Mathie SA, Dixon KL, Walker SA, Tyrrell V, Mondhe M, O'Donnell VB, Gregory LG, Lloyd CM. Alveolar macrophages are sentinels of murine pulmonary homeostasis following inhaled antigen challenge. Allergy 2015; 70:80-9. [PMID: 25331546 PMCID: PMC4283732 DOI: 10.1111/all.12536] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2014] [Indexed: 01/12/2023]
Abstract
BACKGROUND Alveolar macrophages are sentinels of the pulmonary mucosa and central to maintaining immunological homeostasis. However, their role in governing the response to allergen is not fully understood. Inappropriate responses to the inhaled environment manifest as asthma. METHODS We utilized a mechanistic IL-13-driven model and a house dust mite allergen mucosal sensitization model of allergic airway disease to investigate the role of alveolar macrophages in regulating pulmonary inflammation. RESULTS IL-13-dependent eosinophilic and Th2 inflammation was enhanced in mice depleted of alveolar macrophages using clodronate liposomes. Similarly, depletion of alveolar macrophages during house dust mite sensitization or established disease resulted in augmented Th2 immunity and increased allergen-specific IgG1 and IgE. Clodronate treatment also delayed the resolution of tissue inflammation following cessation of allergen challenge. Strikingly, tissue interstitial macrophages were elevated in alveolar macrophage-deficient mice identifying a new homeostatic relationship between different macrophage subtypes. A novel role for the macrophage-derived immunoregulatory cytokine IL-27 was identified in modulating Th2 inflammation following mucosal allergen exposure. CONCLUSIONS In summary, alveolar macrophages are critical regulators of Th2 immunity and their dysregulation promotes an inflammatory environment with exacerbation of allergen-induced airway pathology. Manipulating IL-27 may provide a novel therapeutic strategy for the treatment of asthma.
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Affiliation(s)
- S A Mathie
- Leukocyte Biology, NHLI, Faculty of Medicine, Imperial College LondonLondon, UK
| | | | - S A Walker
- Leukocyte Biology, NHLI, Faculty of Medicine, Imperial College LondonLondon, UK
| | - V Tyrrell
- Department of Medical Biochemistry and Immunology, School of Medicine, Cardiff UniversityCardiff, UK
| | - M Mondhe
- Department of Medical Biochemistry and Immunology, School of Medicine, Cardiff UniversityCardiff, UK
| | - V B O'Donnell
- Department of Medical Biochemistry and Immunology, School of Medicine, Cardiff UniversityCardiff, UK
| | - L G Gregory
- Leukocyte Biology, NHLI, Faculty of Medicine, Imperial College LondonLondon, UK
| | - C M Lloyd
- Leukocyte Biology, NHLI, Faculty of Medicine, Imperial College LondonLondon, UK
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Abstract
: The human intestinal microbiome plays a critical role in human health and disease, including the pathogenesis of inflammatory bowel disease (IBD). Numerous studies have identified altered bacterial diversity and abundance at varying taxonomic levels through biopsies and fecal samples of patients with IBD and diseased model animals. However, inconsistent observations regarding the microbial compositions of such patients have hindered the efforts in assessing the etiological role of specific bacterial species in the pathophysiology of IBD. These observations highlight the importance of minimizing the confounding factors associated with IBD and the need for a standardized methodology to analyze well-defined microbial sampling sources in early IBD diagnosis. Furthermore, establishing the linkage between microbiota compositions with their function within the host system can provide new insights on the pathogenesis of IBD. Such research has been greatly facilitated by technological advances that include functional metagenomics coupled with proteomic and metabolomic profiling. This review provides updates on the composition of the microbiome in IBD and emphasizes microbiota dysbiosis-involved mechanisms. We highlight functional roles of specific bacterial groups in the development and management of IBD. Functional analyses of the microbiome may be the key to understanding the role of microbiota in the development and chronicity of IBD and reveal new strategies for therapeutic intervention.
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81
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Xie M, Mustovich AT, Jiang Y, Trudeau JB, Ray A, Ray P, Hu H, Holguin F, Freeman B, Wenzel SE. IL-27 and type 2 immunity in asthmatic patients: association with severity, CXCL9, and signal transducer and activator of transcription signaling. J Allergy Clin Immunol 2014; 135:386-94. [PMID: 25312760 DOI: 10.1016/j.jaci.2014.08.023] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 07/23/2014] [Accepted: 08/20/2014] [Indexed: 10/24/2022]
Abstract
BACKGROUND Severe asthma (SA) can involve both innate and type 2 cytokine-associated adaptive immunity. Although IL-27 has been reported to potentiate TH1 responses (including the chemokine CXCL9) and suppress TH2 responses, its function in asthmatic patients is unknown. OBJECTIVE We sought to evaluate IL-27 expression in human asthma alone and in combination with type 2 immunity to determine the relationship to disease severity and CXCL9 expression. We also sought to model these interactions in vitro in human bronchial epithelial cells. METHODS Bronchoalveolar lavage cells from 87 participants were evaluated for IL-27 mRNA and protein alone and in association with epithelial CCL26 (a marker of type 2 activation) in relation to asthma severity and CXCL9 mRNA. Human bronchial epithelial cells cultured at the air-liquid interface and stimulated with IL-27 (1-100 ng/mL) with or without IL-13 (1 ng/mL) were evaluated for CXCL9 expression by using quantitative real-time PCR and ELISA. Phosphorylated and total signal transducer and activator of transcription (STAT) 1/3 were detected by means of Western blotting. Small interfering RNA knockdown of STAT1 or STAT3 was performed. RESULTS Bronchoalveolar lavage cell IL-27 mRNA and protein levels were increased in asthmatic patients. Patients with evidence for type 2 pathway activation had higher IL-27 expression (P = .02). Combined IL-27 and CCL26 expression associated with more SA and higher CXCL9 expression (P = .004 and P = .007 respectively), whereas IL-27 alone was associated with milder disease. In vitro IL-13 augmented IL-27-induced CXCL9 expression, which appeared to be due to augmented STAT1 activation and reduced STAT3 activation. CONCLUSIONS IL-27, in combination with a type 2/CCL26 signature, identifies a more SA phenotype, perhaps through combined effects of IL-27 and IL-13 on STAT signaling. Understanding these interactions could lead to new targets for asthma therapy.
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Affiliation(s)
- Min Xie
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; University of Pittsburgh Asthma Institute@UPMC, Pulmonary Allergy Critical Care Medicine Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Anthony T Mustovich
- University of Pittsburgh Asthma Institute@UPMC, Pulmonary Allergy Critical Care Medicine Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Yi Jiang
- University of Pittsburgh Asthma Institute@UPMC, Pulmonary Allergy Critical Care Medicine Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - John B Trudeau
- University of Pittsburgh Asthma Institute@UPMC, Pulmonary Allergy Critical Care Medicine Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Anuradha Ray
- University of Pittsburgh Asthma Institute@UPMC, Pulmonary Allergy Critical Care Medicine Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Prabir Ray
- University of Pittsburgh Asthma Institute@UPMC, Pulmonary Allergy Critical Care Medicine Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Haizhen Hu
- University of Pittsburgh Asthma Institute@UPMC, Pulmonary Allergy Critical Care Medicine Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Fernando Holguin
- University of Pittsburgh Asthma Institute@UPMC, Pulmonary Allergy Critical Care Medicine Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Bruce Freeman
- University of Pittsburgh Asthma Institute@UPMC, Pulmonary Allergy Critical Care Medicine Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Sally E Wenzel
- University of Pittsburgh Asthma Institute@UPMC, Pulmonary Allergy Critical Care Medicine Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pa.
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Wynick C, Petes C, Gee K. Interleukin-27 Mediates Inflammation During Chronic Disease. J Interferon Cytokine Res 2014; 34:741-9. [DOI: 10.1089/jir.2013.0154] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Affiliation(s)
- Christopher Wynick
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
| | - Carlene Petes
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
| | - Katrina Gee
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
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83
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Fu H, Tang YY, Ouyang XP, Tang SL, Su H, Li X, Huang LP, He M, Lv YC, He PP, Yao F, Tan YL, Xie W, Zhang M, Wu J, Li Y, Chen K, Liu D, Lan G, Zeng MY, Zheng XL, Tang CK. Interleukin-27 inhibits foam cell formation by promoting macrophage ABCA1 expression through JAK2/STAT3 pathway. Biochem Biophys Res Commun 2014; 452:881-7. [PMID: 25194807 DOI: 10.1016/j.bbrc.2014.08.120] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 08/23/2014] [Indexed: 12/24/2022]
Abstract
The purpose of this study is to determine whether IL-27 regulates macrophage ABCA1 expression, foam cell formation, and also explore the underlying mechanisms. Here, we revealed that IL-27 decreased lipid accumulation in THP-1 derived macrophages through markedly enhancing cholesterol efflux and increasing ABCA1 expression at both protein and mRNA levels. Our study further demonstrated that IL-27 increased ABCA1 level via activation of signal transducer and activator of transcription 3 (STAT3). Inhibition of Janus kinase 2, (JAK2)/STAT3 suppressed the stimulatory effects of IL-27 on ABCA1 expression. The present study concluded that IL-27 reduces lipid accumulation of foam cell by upregulating ABCA1 expression via JAK2/STAT3. Therefore, targeting IL-27 may offer a promising strategy to treat atherosclerotic vascular disease.
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Affiliation(s)
- Hui Fu
- Department of ICU, First Affiliated Hospital of University of South China, Hengyang 421001, Hunan, China
| | - Yan-Yan Tang
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, Hunan 421001, China
| | - Xin-Ping Ouyang
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, Hunan 421001, China
| | - Shi-Lin Tang
- Department of ICU, First Affiliated Hospital of University of South China, Hengyang 421001, Hunan, China
| | - Hua Su
- Department of ICU, First Affiliated Hospital of University of South China, Hengyang 421001, Hunan, China
| | - Xiaotao Li
- Department of ICU, First Affiliated Hospital of University of South China, Hengyang 421001, Hunan, China
| | - Li-Ping Huang
- Department of ICU, First Affiliated Hospital of University of South China, Hengyang 421001, Hunan, China
| | - Miao He
- Department of ICU, First Affiliated Hospital of University of South China, Hengyang 421001, Hunan, China
| | - Yun-Cheng Lv
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, Hunan 421001, China
| | - Ping-Ping He
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, Hunan 421001, China
| | - Feng Yao
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, Hunan 421001, China
| | - Yu-Lin Tan
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, Hunan 421001, China
| | - Wei Xie
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, Hunan 421001, China
| | - Min Zhang
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, Hunan 421001, China
| | - Jianfeng Wu
- Department of Cardiovascular Medicine, Second Affiliated Hospital of University of South China, Hengyang 421001, Hunan, China
| | - Yuan Li
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, Hunan 421001, China
| | - Kong Chen
- Department of Cardiovascular Medicine, Second Affiliated Hospital of University of South China, Hengyang 421001, Hunan, China
| | - Dan Liu
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, Hunan 421001, China
| | - Gang Lan
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, Hunan 421001, China
| | - Meng-Ya Zeng
- Department of Cardiovascular Medicine, Second Affiliated Hospital of University of South China, Hengyang 421001, Hunan, China
| | - Xi-Long Zheng
- Department of Biochemistry and Molecular Biology, The Libin Cardiovascular Institute of Alberta, The University of Calgary, Health Sciences Center, 3330 Hospital Dr. NW, Calgary, Alberta T2N 4N1, Canada
| | - Chao-Ke Tang
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, Hunan 421001, China.
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The Effect of Oral Intake of Low-Temperature-Processed Whey Protein Concentrate on Colitis and Gene Expression Profiles in Mice. Foods 2014; 3:351-368. [PMID: 28234324 PMCID: PMC5302365 DOI: 10.3390/foods3020351] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 05/30/2014] [Accepted: 06/03/2014] [Indexed: 01/28/2023] Open
Abstract
Inflammatory bowel disease (IBD) is an autoimmune disease of unknown etiology and can lead to inflammation and cancer. Whey proteins contain many bioactive peptides with potential health benefits against IBD. We investigated the effect of low-temperature-processed whey protein concentrate (LWPC) on the suppression of IBD by using a dextran sodium sulfate (DSS)-induced colitis model in BALB/c mice. Oral intake of LWPC resulted in improved recovery of body weight in mice. Histological analysis showed that the epithelium cells of LWPC-treated mice were healthier and that lymphocyte infiltration was reduced. The increase in mucin due to the LWPC also reflected reduced inflammation in the colon. Transcriptome analysis of the colon by DNA microarrays revealed marked downregulation of genes related to immune responses in LWPC-fed mice. In particular, the expression of interferon gamma receptor 2 (Ifngr2) and guanylate-binding proteins (GBPs) was increased by DSS treatment and decreased in LWPC-fed mice. These findings suggest that LWPCs suppress DSS-induced inflammation in the colon by suppressing the signaling of these cytokines. Our findings suggest that LWPCs would be an effective food resource for suppressing IBD symptoms.
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85
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Liu X, Robinson SN, Setoyama T, Tung SS, D’Abundo L, Shah MY, Yang H, Yvon E, Shah N, Yang H, Konopleva M, Garcia-Manero G, McNiece I, Rezvani K, Calin GA, Shpall EJ, Parmar S. FOXP3 is a direct target of miR15a/16 in umbilical cord blood regulatory T cells. Bone Marrow Transplant 2014; 49:793-9. [PMID: 24710569 PMCID: PMC4080423 DOI: 10.1038/bmt.2014.57] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 02/05/2014] [Accepted: 02/06/2014] [Indexed: 12/17/2022]
Abstract
Exact mechanism of action of umbilical cord blood (CB)-derived regulatory T cells (Tregs) in the prevention of GVHD remains unclear. On the basis of selective overexpression of peptidase inhibitor 16 in CB Tregs, we explored the related p53 pathway, which has been shown to negatively regulate miR15a/16 expression. Significantly lower levels of miR15a/16 were observed in CB Tregs when compared with conventional CB T cells (Tcons). In a xenogeneic GVHD mouse model, lower levels of miR15a/16 were also found in Treg recipients, which correlated with a better GVHD score. Forced overexpression of miR15a/16 in CB Tregs led to inhibition of FOXP3 and CTLA4 expression and partial reversal of Treg-mediated suppression in an allogeneic mixed lymphocyte reaction that correlated with the reversal of FOXP3 demethylation in CB Tregs. On the other hand, miR15a/16 knockdown in CB Tcons led to expression of FOXP3 and CTLA4 and suppression of allogeneic lymphocyte proliferation. Using a luciferase-based mutagenesis assay, FOXP3 was determined to be a direct target of miR15a and miR16. We propose that miR15a/16 has an important role in mediating the suppressive function of CB Tregs and these microRNAs may have a 'toggle-switch' function in Treg/Tcon plasticity.
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MESH Headings
- Animals
- CTLA-4 Antigen/genetics
- Carrier Proteins/genetics
- Carrier Proteins/metabolism
- Cells, Cultured
- Disease Models, Animal
- Fetal Blood/cytology
- Fetal Blood/immunology
- Fetal Blood/metabolism
- Forkhead Transcription Factors/antagonists & inhibitors
- Forkhead Transcription Factors/genetics
- Forkhead Transcription Factors/immunology
- Gene Expression
- Gene Knockdown Techniques
- Genes, p53
- Glycoproteins/genetics
- Glycoproteins/metabolism
- Graft vs Host Disease/genetics
- Graft vs Host Disease/immunology
- Graft vs Host Disease/metabolism
- Heterografts
- Humans
- Lymphocyte Culture Test, Mixed
- Mice
- Mice, Inbred NOD
- Mice, SCID
- MicroRNAs/antagonists & inhibitors
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Mutagenesis, Site-Directed
- T-Lymphocytes, Regulatory/cytology
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
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Affiliation(s)
- X Liu
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - SN Robinson
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - T Setoyama
- Experimental Therapeutics, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - SS Tung
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - L D’Abundo
- Experimental Therapeutics, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - MY Shah
- Experimental Therapeutics, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - H Yang
- Department of Leukemia, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - E Yvon
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - N Shah
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - H Yang
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - M Konopleva
- Department of Leukemia, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - G Garcia-Manero
- Department of Leukemia, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - I McNiece
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - K Rezvani
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - GA Calin
- Experimental Therapeutics, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
- Department of Leukemia, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - EJ Shpall
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - S Parmar
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
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Beigel F, Friedrich M, Probst C, Sotlar K, Göke B, Diegelmann J, Brand S. Oncostatin M mediates STAT3-dependent intestinal epithelial restitution via increased cell proliferation, decreased apoptosis and upregulation of SERPIN family members. PLoS One 2014; 9:e93498. [PMID: 24710357 PMCID: PMC3977870 DOI: 10.1371/journal.pone.0093498] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 03/06/2014] [Indexed: 11/18/2022] Open
Abstract
Objective Oncostatin M (OSM) is produced by activated T cells, monocytes, and dendritic cells and signals through two distinct receptor complexes consisting of gp130 and LIFR (I) or OSMR-β and gp130 (II), respectively. Aim of this study was to analyze the role of OSM in intestinal epithelial cells (IEC) and intestinal inflammation. Methods OSM expression and OSM receptor distribution was analyzed by PCR and immunohistochemistry experiments, signal transduction by immunoblotting. Gene expression studies were performed by microarray analysis and RT-PCR. Apoptosis was measured by caspases-3/7 activity. IEC migration and proliferation was studied in wounding and water soluble tetrazolium assays. Results The IEC lines Caco-2, DLD-1, SW480, HCT116 and HT-29 express mRNA for the OSM receptor subunits gp130 and OSMR-β, while only HCT116, HT-29 and DLD-1 cells express LIFR mRNA. OSM binding to its receptor complex activates STAT1, STAT3, ERK-1/2, SAPK/JNK-1/2, and Akt. Microarray analysis revealed 79 genes that were significantly up-regulated (adj.-p≤0.05) by OSM in IEC. Most up-regulated genes belong to the functional categories “immunity and defense” (p = 2.1×10−7), “apoptosis” (p = 3.7×10−4) and “JAK/STAT cascade” (p = 3.4×10−6). Members of the SERPIN gene family were among the most strongly up-regulated genes. OSM significantly increased STAT3- and MEK1-dependent IEC cell proliferation (p<0.05) and wound healing (p = 3.9×10−5). OSM protein expression was increased in colonic biopsies of patients with active inflammatory bowel disease (IBD). Conclusions OSM promotes STAT3-dependent intestinal epithelial cell proliferation and wound healing in vitro. Considering the increased OSM expression in colonic biopsy specimens of patients with active IBD, OSM upregulation may modulate a barrier-protective host response in intestinal inflammation. Further in vivo studies are warranted to elucidate the exact role of OSM in intestinal inflammation and the potential of OSM as a drug target in IBD.
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Affiliation(s)
- Florian Beigel
- Department of Medicine II, University-Hospital Munich-Grosshadern, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Matthias Friedrich
- Department of Medicine II, University-Hospital Munich-Grosshadern, Ludwig-Maximilians-University Munich, Munich, Germany
- Clinic for Preventive Dentistry and Parodontology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Corina Probst
- Department of Medicine II, University-Hospital Munich-Grosshadern, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Karl Sotlar
- Institute of Pathology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Burkhard Göke
- Department of Medicine II, University-Hospital Munich-Grosshadern, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Julia Diegelmann
- Department of Medicine II, University-Hospital Munich-Grosshadern, Ludwig-Maximilians-University Munich, Munich, Germany
- Clinic for Preventive Dentistry and Parodontology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Stephan Brand
- Department of Medicine II, University-Hospital Munich-Grosshadern, Ludwig-Maximilians-University Munich, Munich, Germany
- * E-mail:
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87
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Attenuation of intestinal inflammation in interleukin-10-deficient mice infected with Citrobacter rodentium. Infect Immun 2014; 82:1949-58. [PMID: 24566625 DOI: 10.1128/iai.00066-14] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Interleukin-10 (IL-10) curtails immune responses to microbial infection and autoantigens and contributes to intestinal immune homeostasis, yet administration of IL-10 has not been effective at attenuating chronic intestinal inflammatory conditions, suggesting that its immune functions may be context dependent. To gain a broader understanding of the importance of IL-10 in controlling mucosal immune responses to infectious challenges, we employed the murine attaching and effacing pathogen Citrobacter rodentium, which colonizes primarily the surfaces of the cecum and colon and causes transient mucosal inflammation driven by Th17 and Th1 T helper cells. Infection induced macrophage and dendritic cell production of IL-10, which diminished antibacterial host defenses, because IL-10-deficient mice cleared infection faster than wild-type controls. In parallel, the mice had less acute infection-associated colitis and resolved it more rapidly than controls. Importantly, transient C. rodentium infection protected IL-10-deficient mice against the later development of spontaneous colitis that normally occurs with aging in these mice. Genome-wide expression studies revealed that IL-10 deficiency was associated with downregulation of proinflammatory pathways but increased expression of the anti-inflammatory cytokine IL-27 in response to infection. IL-27 was found to suppress in vitro Th17 and, to a lesser degree, Th1 differentiation independent of IL-10. Furthermore, neutralization of IL-27 resulted in more severe colitis in infected IL-10-deficient mice. Together, these findings indicate that IL-10 is dispensable for resolving C. rodentium-associated colitis and further suggest that IL-27 may be a critical factor for controlling intestinal inflammation and Th17 and Th1 development by IL-10-independent mechanisms.
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Abstract
: Inflammatory bowel disease accounts for significant patient morbidity in the Western world. Several immunosuppressive therapies are available but are associated with potential significant adverse effects. In addition, there remains a cohort of patients with refractory or relapsing disease. Therefore, the search for novel therapeutic agents continues. In this review, we evaluate the role of a number of designated cytokines that are candidates in the pathogenesis of inflammatory bowel disease and discuss how their manipulation has been explored as a therapeutic strategy for this disease. The interleukins (ILs) chosen for discussion reflect those that currently show most promise as future therapeutic targets, as well as discussing the role of some of the most recently identified ILs, such as IL-27, IL-33, IL-35, and IL-22, in this context.
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89
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Siveen KS, Sikka S, Surana R, Dai X, Zhang J, Kumar AP, Tan BKH, Sethi G, Bishayee A. Targeting the STAT3 signaling pathway in cancer: role of synthetic and natural inhibitors. Biochim Biophys Acta Rev Cancer 2014; 1845:136-54. [PMID: 24388873 DOI: 10.1016/j.bbcan.2013.12.005] [Citation(s) in RCA: 358] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 12/24/2013] [Accepted: 12/27/2013] [Indexed: 12/25/2022]
Abstract
Signal transducers and activators of transcription (STATs) comprise a family of cytoplasmic transcription factors that mediate intracellular signaling that is usually generated at cell surface receptors and thereby transmit it to the nucleus. Numerous studies have demonstrated constitutive activation of STAT3 in a wide variety of human tumors, including hematological malignancies (leukemias, lymphomas, and multiple myeloma) as well as diverse solid tumors (such as head and neck, breast, lung, gastric, hepatocellular, colorectal and prostate cancers). There is strong evidence to suggest that aberrant STAT3 signaling promotes initiation and progression of human cancers by either inhibiting apoptosis or inducing cell proliferation, angiogenesis, invasion, and metastasis. Suppression of STAT3 activation results in the induction of apoptosis in tumor cells, and accordingly its pharmacological modulation by tyrosine kinase inhibitors, antisense oligonucleotides, decoy nucleotides, dominant negative proteins, RNA interference and chemopreventive agents have been employed to suppress the proliferation of various human cancer cells in culture and tumorigenicity in vivo. However, the identification and development of novel drugs that can target deregulated STAT3 activation effectively remains an important scientific and clinical challenge. This review presents the evidence for critical roles of STAT3 in oncogenesis and discusses the potential for development of novel cancer therapies based on mechanistic understanding of STAT3 signaling cascade.
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Affiliation(s)
| | - Sakshi Sikka
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Cancer Science Institute of Singapore, National University of Singapore, Centre for Translational Medicine, Singapore
| | - Rohit Surana
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Cancer Science Institute of Singapore, National University of Singapore, Centre for Translational Medicine, Singapore
| | - Xiaoyun Dai
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jingwen Zhang
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Alan Prem Kumar
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Cancer Science Institute of Singapore, National University of Singapore, Centre for Translational Medicine, Singapore; School of Biomedical Sciences, Faculty of Health Sciences, Curtin University, Western Australia, Australia; Department of Biological Sciences, University of North Texas, Denton, TX, USA
| | - Benny K H Tan
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Cancer Science Institute of Singapore, National University of Singapore, Centre for Translational Medicine, Singapore.
| | - Anupam Bishayee
- Department of Pharmaceutical Sciences, School of Pharmacy, American University of Health Sciences, Signal Hill, CA, USA.
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90
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Hanson ML, Hixon JA, Li W, Felber BK, Anver MR, Stewart CA, Janelsins BM, Datta SK, Shen W, McLean MH, Durum SK. Oral delivery of IL-27 recombinant bacteria attenuates immune colitis in mice. Gastroenterology 2014; 146:210-221.e13. [PMID: 24120477 PMCID: PMC3920828 DOI: 10.1053/j.gastro.2013.09.060] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 09/17/2013] [Accepted: 09/24/2013] [Indexed: 12/15/2022]
Abstract
BACKGROUND & AIMS Treatment of inflammatory bowel disease would benefit from specific targeting of therapeutics to the intestine. We developed a strategy for localized delivery of the immunosuppressive cytokine interleukin (IL)-27, which is synthesized actively in situ by the food-grade bacterium Lactococcus lactis (LL-IL-27), and tested its ability to reduce colitis in mice. METHODS The 2 genes encoding mouse IL-27 were synthesized with optimal codon use for L lactis and joined with a linker; a signal sequence was added to allow for product secretion. The construct was introduced into L lactis. Colitis was induced via transfer of CD4(+)CD45RB(hi) T cells into Rag(-/-) mice to induce colitis; 7.5 weeks later, LL-IL-27 was administered to mice via gavage. Intestinal tissues were collected and analyzed. RESULTS LL-IL-27 administration protected mice from T-cell transfer-induced enterocolitis and death. LL-IL-27 reduced disease activity scores, pathology features of large and small bowel, and levels of inflammatory cytokines in colonic tissue. LL-IL-27 also reduced the numbers of CD4(+) and IL-17(+) T cells in gut-associated lymphoid tissue. The effects of LL-IL-27 required production of IL-10 by the transferred T cells. LL-IL-27 was more effective than either LL-IL-10 or systemic administration of recombinant IL-27 in reducing colitis in mice. LL-IL-27 also reduced colitis in mice after administration of dextran sodium sulfate. CONCLUSIONS LL-IL-27 reduces colitis in mice by increasing the production of IL-10. Mucosal delivery of LL-IL-27 could be a more effective and safer therapy for inflammatory bowel disease.
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Affiliation(s)
- Miranda L Hanson
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland
| | - Julie A Hixon
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland
| | - Wenqing Li
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland
| | - Barbara K Felber
- Human Retrovirus Pathogenesis Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute, Frederick, Maryland
| | - Miriam R Anver
- Laboratory Animal Services Program, Science Applications International Corporation, National Cancer Institute, Frederick, Maryland
| | - C Andrew Stewart
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland
| | - Brian M Janelsins
- Bacterial Pathogenesis Unit, Laboratory of Clinical Infectious Disease, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Sandip K Datta
- Bacterial Pathogenesis Unit, Laboratory of Clinical Infectious Disease, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Wei Shen
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland
| | - Mairi H McLean
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland
| | - Scott K Durum
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland.
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91
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Diegelmann J, Czamara D, Le Bras E, Zimmermann E, Olszak T, Bedynek A, Göke B, Franke A, Glas J, Brand S. Intestinal DMBT1 expression is modulated by Crohn's disease-associated IL23R variants and by a DMBT1 variant which influences binding of the transcription factors CREB1 and ATF-2. PLoS One 2013; 8:e77773. [PMID: 24223725 PMCID: PMC3818382 DOI: 10.1371/journal.pone.0077773] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 09/09/2013] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES DMBT is an antibacterial pattern recognition and scavenger receptor. In this study, we analyzed the role of DMBT1 single nucleotide polymorphisms (SNPs) regarding inflammatory bowel disease (IBD) susceptibility and examined their functional impact on transcription factor binding and downstream gene expression. METHODS Seven SNPs in the DMBT1 gene region were analyzed in 2073 individuals including 818 Crohn's disease (CD) patients and 972 healthy controls in two independent case-control panels. Comprehensive epistasis analyses for the known CD susceptibility genes NOD2, IL23R and IL27 were performed. The influence of IL23R variants on DMBT1 expression was analyzed. Functional analysis included siRNA transfection, quantitative PCR, western blot, electrophoretic mobility shift and luciferase assays. RESULTS IL-22 induces DMBT1 protein expression in intestinal epithelial cells dependent on STAT3, ATF-2 and CREB1. IL-22 expression-modulating, CD risk-associated IL23R variants influence DMBT1 expression in CD patients and DMBT1 levels are increased in the inflamed intestinal mucosa of CD patients. Several DMBT1 SNPs were associated with CD susceptibility. SNP rs2981804 was most strongly associated with CD in the combined panel (p = 3.0 × 10(-7), OR 1.42; 95% CI 1.24-1.63). All haplotype groups tested showed highly significant associations with CD (including omnibus P-values as low as 6.1 × 10(-18)). The most strongly CD risk-associated, non-coding DMBT1 SNP rs2981804 modifies the DNA binding sites for the transcription factors CREB1 and ATF-2 and the respective genomic region comprising rs2981804 is able to act as a transcriptional regulator in vitro. Intestinal DMBT1 expression is decreased in CD patients carrying the rs2981804 CD risk allele. CONCLUSION We identified novel associations of DMBT1 variants with CD susceptibility and discovered a novel functional role of rs2981804 in regulating DMBT1 expression. Our data suggest an important role of DMBT1 in CD pathogenesis.
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Affiliation(s)
- Julia Diegelmann
- Department of Medicine II - Grosshadern, Ludwig-Maximilians-University (LMU), Munich, Germany
- Department of Preventive Dentistry and Periodontology, Ludwig-Maximilians-University (LMU), Munich, Germany
| | - Darina Czamara
- Max-Planck-Institute for Psychiatry, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Emmanuelle Le Bras
- Department of Medicine II - Grosshadern, Ludwig-Maximilians-University (LMU), Munich, Germany
| | - Eva Zimmermann
- Department of Preventive Dentistry and Periodontology, Ludwig-Maximilians-University (LMU), Munich, Germany
| | - Torsten Olszak
- Department of Medicine II - Grosshadern, Ludwig-Maximilians-University (LMU), Munich, Germany
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Andrea Bedynek
- Department of Clinical Chemistry, Ludwig-Maximilians-University (LMU), Munich, Germany
| | - Burkhard Göke
- Department of Medicine II - Grosshadern, Ludwig-Maximilians-University (LMU), Munich, Germany
| | - Andre Franke
- Institute of Clinical Molecular Biology, Christian-Albrechts-University, Kiel, Germany
| | - Jürgen Glas
- Department of Medicine II - Grosshadern, Ludwig-Maximilians-University (LMU), Munich, Germany
- Department of Preventive Dentistry and Periodontology, Ludwig-Maximilians-University (LMU), Munich, Germany
- Department of Human Genetics, Rheinisch-Westfälische Technische Hochschule (RWTH), Aachen, Germany
| | - Stephan Brand
- Department of Medicine II - Grosshadern, Ludwig-Maximilians-University (LMU), Munich, Germany
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92
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Knights D, Lassen KG, Xavier RJ. Advances in inflammatory bowel disease pathogenesis: linking host genetics and the microbiome. Gut 2013; 62:1505-10. [PMID: 24037875 PMCID: PMC3822528 DOI: 10.1136/gutjnl-2012-303954] [Citation(s) in RCA: 314] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Studies of the genetics underlying inflammatory bowel diseases have increased our understanding of the pathways involved in both ulcerative colitis and Crohn's disease and focused attention on the role of the microbiome in these diseases. Full understanding of pathogenesis will require a comprehensive grasp of the delicate homeostasis between gut bacteria and the human host. In this review, we present current evidence of microbiome-gene interactions in the context of other known risk factors and mechanisms, and describe the next steps necessary to pair genetic variant and microbiome sequencing data from patient cohorts. We discuss the concept of dysbiosis, proposing that the functional composition of the gut microbiome may provide a more consistent definition of dysbiosis and may more readily provide evidence of genome-microbiome interactions in future exploratory studies.
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Affiliation(s)
- Dan Knights
- Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts, USA,Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,Department of Computer Science and Engineering, University of Minnesota, Minneapolis, Minnesota, USA
| | - Kara G. Lassen
- Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts, USA,Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Ramnik J. Xavier
- Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts, USA,Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,Gastrointestinal Unit and Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
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93
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Prebiotic consumption in pregnant and lactating women increases IL-27 expression in human milk. Br J Nutr 2013; 111:625-32. [DOI: 10.1017/s0007114513003036] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The consumption of probiotics by pregnant and lactating women may prevent the onset of allergic disorders in their children by increasing the concentrations of immunoactive agents such as cytokines in breast milk. Prebiotics such as fructo-oligosaccharides (FOS) increase the number of beneficial organisms such as bifidobacteria. Thus, prebiotics may have an effect similar to that of probiotics. The objective of the present study was to carry out a comprehensive analysis of mRNA expression in human milk cells to identify changes in the concentrations of cytokines in breast milk after the consumption of FOS (4 g × 2 times/d) by pregnant and lactating women. The microarray analysis of human milk cells demonstrated that the expression levels of five genes in colostrum samples and fourteen genes in 1-month breast milk samples differed more than 3-fold between the FOS and control groups (sucrose group). The mRNA expression level of IL-27, a cytokine associated with immunoregulatory function, was significantly higher in 1-month breast milk samples obtained from the FOS group than in those obtained from the control group. In addition, the protein concentrations of IL-27 in colostrum and 1-month breast milk samples were significantly higher in the FOS group than in the control group. In conclusion, the consumption of FOS by pregnant and lactating women increases the production of IL-27 in breast milk. Future studies will address the association of this phenomenon with the onset of allergic disorders in children.
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94
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Abstract
PURPOSE OF REVIEW Several gastrointestinal diseases including the inflammatory bowel diseases (IBDs) and malignancy are associated with elevated expression of indoleamine 2,3 dioxygenase-1 (IDO1). IDO1 initiates tryptophan catabolism along a pathway that generates several bioactive kynurenine-based metabolites. Promotion of T-cell-mediated tolerance and antimicrobial effects are among the variety of functions attributed to IDO1 activity. Recent advances addressing the diverse implications of gut-associated IDO1 expression are herein reviewed. RECENT FINDINGS In active IBD, IDO1 is highly expressed both in the cells of the lamina propria and epithelium. Experimental models demonstrate that IDO1 promotes gut immune homeostasis by limiting inflammatory responses and protecting the epithelium. In human colon cancer, high expression of IDO1 by the neoplastic epithelium correlates with poor prognosis. The serum kynurenine : tryptophan ratio is elevated in both active Crohn's disease and in colon cancer, suggesting this measurement may prove useful as a disease biomarker. IDO1 inhibitors have moved to clinical trials providing new hope as immunotherapy for advanced malignancy. SUMMARY IDO1 activity significantly shapes gastrointestinal disease pathophysiology and severity. Measures of IDO1 activity may be useful as a disease biomarker. Manipulation of IDO1 activity has great potential as a treatment for both inflammatory and malignancy associated gastrointestinal disease.
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Abstract
It has been more than 15 years since the identification of individual interleukin-27 (IL-27) and IL-27 receptor components. The last decade has seen the description of the signaling pathways engaged by IL-27, and an appreciation has emerged that this cytokine can modulate the intensity and duration of many classes of T cell responses. Here we provide an overview of the immunobiology of IL-27 and review advances in understanding the functions of individual IL-27 and IL-27 receptor subunits and the role of IL-27 in dictating the balance between protective and pathological immunity. Additionally, this cytokine has been proposed as a therapy to modify inflammatory conditions or to promote antitumor responses, and situations where experimental and clinical data sets implicate IL-27 in the outcome of disease are highlighted.
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96
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Murugaiyan G, Saha B. IL-27 in tumor immunity and immunotherapy. Trends Mol Med 2013; 19:108-16. [DOI: 10.1016/j.molmed.2012.12.002] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2012] [Revised: 11/30/2012] [Accepted: 12/07/2012] [Indexed: 01/23/2023]
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97
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Abstract
Enhanced susceptibility to infection has long been recognized in children with congenital deficiency of leptin or its receptor. Studies in mice have demonstrated that leptin deficiency affects both the innate and acquired immune systems. Here, we review recent studies that demonstrate the impact on immunity of a common non-synonomous polymorphism of the leptin receptor. In a Bangladesh cohort of children, the presence of two copies of the ancestral Q223 allele was significantly associated with resistance to amebiasis. Children and mice with at least one copy of the leptin receptor 223R mutation were more susceptible to amebic colitis. Leptin signaling in the intestinal epithelium and downstream STAT3 (signal transducer and activator of transcription 3) and SHP2 (Src homology phosphatase 2) signaling were required for protection in the murine model of amebic colitis. Murine models have also implicated leptin in protection from other infections, including Mycobacterium tuberculosis, Klebsiella pneumoniae, and Streptococcus pneumoniae. Thus, the role of leptin signaling in infectious disease and specifically leptin-mediated protection of the intestinal epithelium will be the focus of this review.
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98
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Programmed death ligand 2 in cancer-induced immune suppression. Clin Dev Immunol 2012; 2012:656340. [PMID: 22611421 PMCID: PMC3350956 DOI: 10.1155/2012/656340] [Citation(s) in RCA: 249] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Accepted: 02/13/2012] [Indexed: 12/31/2022]
Abstract
Inhibitory molecules of the B7/CD28 family play a key role in the induction of immune tolerance in the tumor microenvironment. The programmed death-1 receptor (PD-1), with its ligands PD-L1 and PD-L2, constitutes an important member of these inhibitory pathways. The relevance of the PD-1/PD-L1 pathway in cancer has been extensively studied and therapeutic approaches targeting PD-1 and PD-L1 have been developed and are undergoing human clinical testing. However, PD-L2 has not received as much attention and its role in modulating tumor immunity is less clear. Here, we review the literature on the immunobiology of PD-L2, particularly on its possible roles in cancer-induced immune suppression and we discuss the results of recent studies targeting PD-L2 in cancer.
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99
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Li W, Yang Z, Huang DQ, Lv NH. Role of Th17 and IL-17 in Helicobacter pylori-related gastric carcinogenesis. Shijie Huaren Xiaohua Zazhi 2012; 20:936-940. [DOI: 10.11569/wcjd.v20.i11.936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
T helper 17 (Th17) cells are a newly defined subset of CD4+ effecter T cells characterized by the secretion of interleukin 17 (IL-17) and transcription factor RORγ. They play significant roles in the pathogenesis of various tumors and bacterial infectious diseases. Gastric carcinoma is closely related to Helicobacter pylori (H. pylori) infection and has a very high mortality. Evidence shows that both Th17 and IL-17 play critical roles in the pathogenesis of H. pylori-associated gastric carcinoma and precancerous lesions. Elucidation of the roles of Th17 and IL-17 in H. pylori-related gastric carcinogenesis will provide new clues to the early diagnosis, personalized prevention and immunotherapy, vaccination and prognostic evaluation of gastric carcinoma.
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100
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Liu L, Cao Z, Chen J, Li R, Cao Y, Zhu C, Wu K, Wu J, Liu F, Zhu Y. Influenza A virus induces interleukin-27 through cyclooxygenase-2 and protein kinase A signaling. J Biol Chem 2012; 287:11899-910. [PMID: 22343630 DOI: 10.1074/jbc.m111.308064] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
We previously reported that IL-27, which belongs to the IL-12 family of cytokines, is elevated in the serum of patients infected with influenza A virus (IAV). Here, we show that the expression of IL-27 was significantly up-regulated in A549 human lung epithelial cells and human peripheral blood mononuclear cells infected with IAV. Additionally, IAV triggered IL-27 expression through protein kinase A and cAMP-response element-binding protein signaling, which was mediated by cyclooxygenase-2-derived prostaglandin E(2). IL-27 inhibited IAV replication by STAT1/2/3 phosphorylation and activated antiviral factor protein kinase R phosphorylation. Clinical analysis showed that IL-27 levels were significantly elevated in a cohort of patients infected with IAV compared with healthy individuals and that circulating IL-27 levels were tightly and positively correlated with prostaglandin E(2) levels. These results indicate that IL-27 expression is one host immune factor produced in response to IAV infection and that elevated IL-27 levels inhibit viral replication.
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Affiliation(s)
- Li Liu
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, China
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