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Lin YC, Hou YC, Wang HC, Shan YS. New insights into the role of adipocytes in pancreatic cancer progression: paving the way towards novel therapeutic targets. Theranostics 2023; 13:3925-3942. [PMID: 37554282 PMCID: PMC10405844 DOI: 10.7150/thno.82911] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 06/21/2023] [Indexed: 08/10/2023] Open
Abstract
Pancreatic cancer (PC) remains one of the most lethal malignancies across the world, which is due to delayed diagnosis and resistance to current therapies. The interactions between pancreatic tumor cells and their tumor microenvironment (TME) allow cancer cells to escape from anti-cancer therapies, leading to difficulties in treating PC. With endocrine function and lipid storage capacity, adipose tissue can maintain energy homeostasis. Direct or indirect interaction between adipocytes and PC cells leads to adipocyte dysfunction characterized by morphological change, fat loss, abnormal adipokine secretion, and fibroblast-like transformation. Various adipokines released from dysfunctional adipocytes have been reported to promote proliferation, invasion, metastasis, stemness, and chemoresistance of PC cells via different mechanisms. Additional lipid outflow from adipocytes can be taken into the TME and thus alter the metabolism in PC cells and surrounding stromal cells. Besides, the trans-differentiation potential enables adipocytes to turn into various cell types, which may give rise to an inflammatory response as well as extracellular matrix reorganization to modulate tumor burden. Understanding the molecular basis behind the protumor functions of adipocytes in PC may offer new therapeutic targets.
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Affiliation(s)
- Yu-Chun Lin
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
| | - Ya-Chin Hou
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
- Department of Clinical Medicine Research Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
- Division of General Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
| | - Hao-Chen Wang
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
- Medical Imaging Center, Innovation Headquarter, National Cheng Kung University; Tainan 704, Taiwan
| | - Yan-Shen Shan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
- Division of General Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
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2
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Wang Y, Hu C. Leptin and Asthma: What Are the Interactive Correlations? Biomolecules 2022; 12:biom12121780. [PMID: 36551211 PMCID: PMC9775505 DOI: 10.3390/biom12121780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/02/2022] Open
Abstract
Leptin is an adipokine directly correlated with the proinflammatory obese-associated phenotype. Leptin has been demonstrated to inhibit adipogenesis, promote fat demarcation, promote a chronic inflammatory state, increase insulin sensitivity, and promote angiogenesis. Leptin, a regulator of the immune response, is implicated in the pathology of asthma. Studies involved in the key cell reaction and animal models of asthma have provided vital insights into the proinflammatory role of leptin in asthma. Many studies described the immune cell and related cellular pathways activated by leptin, which are beneficial in asthma development and increasing exacerbations. Subsequent studies relating to animal models support the role of leptin in increasing inflammatory cell infiltration, airway hyperresponsiveness, and inflammatory responses. However, the conclusive effects of leptin in asthma are not well elaborated. In the present study, we explored the general functions and the clinical cohort study supporting the association between leptin and asthma. The main objective of our review is to address the knowns and unknowns of leptin on asthma. In this perspective, the arguments about the different faces of leptin in asthma are provided to picture the potential directions, thus yielding a better understanding of asthma development.
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Affiliation(s)
- Yang Wang
- Department of Respiratory Medicine (Department of Respiratory and Critical Care Medicine), Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Chengping Hu
- Department of Respiratory Medicine (Department of Respiratory and Critical Care Medicine), Xiangya Hospital, Central South University, Changsha 410008, China
- Correspondence:
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3
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Neuwirth T, Knapp K, Stary G. (Not) Home alone: Antigen presenting cell - T Cell communication in barrier tissues. Front Immunol 2022; 13:984356. [PMID: 36248804 PMCID: PMC9556809 DOI: 10.3389/fimmu.2022.984356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/13/2022] [Indexed: 11/30/2022] Open
Abstract
Priming of T cells by antigen presenting cells (APCs) is essential for T cell fate decisions, enabling T cells to migrate to specific tissues to exert their effector functions. Previously, these interactions were mainly explored using blood-derived cells or animal models. With great advances in single cell RNA-sequencing techniques enabling analysis of tissue-derived cells, it has become clear that subsets of APCs are responsible for priming and modulating heterogeneous T cell effector responses in different tissues. This composition of APCs and T cells in tissues is essential for maintaining homeostasis and is known to be skewed in infection and inflammation, leading to pathological T cell responses. This review highlights the commonalities and differences of T cell priming and subsequent effector function in multiple barrier tissues such as the skin, intestine and female reproductive tract. Further, we provide an overview of how this process is altered during tissue-specific infections which are known to cause chronic inflammation and how this knowledge could be harnessed to modify T cell responses in barrier tissue.
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Affiliation(s)
- Teresa Neuwirth
- Department of Dermatology, Medical University of Vienna, Vienna, Austria,CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Katja Knapp
- Department of Dermatology, Medical University of Vienna, Vienna, Austria,CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Georg Stary
- Department of Dermatology, Medical University of Vienna, Vienna, Austria,CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria,Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Vienna, Austria,*Correspondence: Georg Stary,
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4
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Suau R, Pardina E, Domènech E, Lorén V, Manyé J. The Complex Relationship Between Microbiota, Immune Response and Creeping Fat in Crohn's Disease. J Crohns Colitis 2022; 16:472-489. [PMID: 34528668 DOI: 10.1093/ecco-jcc/jjab159] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In the last decade, there has been growing interest in the pathological involvement of hypertrophic mesenteric fat attached to the serosa of the inflamed intestinal segments involved in Crohn's disease [CD], known as creeping fat. In spite of its protective nature, creeping fat harbours an aberrant inflammatory activity which, in an already inflamed intestine, may explain why creeping fat is associated with a greater severity of CD. The transmural inflammation of CD facilitates the interaction of mesenteric fat with translocated intestinal microorganisms, contributing to activation of the immune response. This may be not the only way in which microorganisms alter the homeostasis of this fatty tissue: intestinal dysbiosis may also impair xenobiotic metabolism. All these CD-related alterations have a functional impact on nuclear receptors such as the farnesoid X receptor or the peroxisome proliferator-activated receptor γ, which are implicated in regulation of the immune response, adipogenesis and the maintenance of barrier function, as well as on creeping fat production of inflammatory-associated cells such as adipokines. The dysfunction of creeping fat worsens the inflammatory course of CD and may favour intestinal fibrosis and fistulizing complications. However, our current knowledge of the pathophysiology and pathogenic role of creeping fat is controversial and a better understanding might provide new therapeutic targets for CD. Here we aim to review and update the key cellular and molecular alterations involved in this inflammatory process that link the pathological components of CD with the development of creeping fat.
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Affiliation(s)
- Roger Suau
- IBD Research Group, 'Germans Trias i Pujol' Research Institute (IGTP), Badalona (Catalonia), Spain.,Centro de Investigación Biomédica en Red (CIBER), Madrid, Spain
| | - Eva Pardina
- Biochemistry and Molecular Biomedicine Department, University of Barcelona, Barcelona (Catalonia), Spain
| | - Eugeni Domènech
- IBD Research Group, 'Germans Trias i Pujol' Research Institute (IGTP), Badalona (Catalonia), Spain.,Centro de Investigación Biomédica en Red (CIBER), Madrid, Spain.,Gastroenterology Department, 'Germans Trias i Pujol' University Hospital, Badalona (Catalonia), Spain
| | - Violeta Lorén
- IBD Research Group, 'Germans Trias i Pujol' Research Institute (IGTP), Badalona (Catalonia), Spain.,Centro de Investigación Biomédica en Red (CIBER), Madrid, Spain
| | - Josep Manyé
- IBD Research Group, 'Germans Trias i Pujol' Research Institute (IGTP), Badalona (Catalonia), Spain.,Centro de Investigación Biomédica en Red (CIBER), Madrid, Spain
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5
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Freff J, Bröker L, Leite Dantas R, Schwarte K, Bühlmeier J, Kraft I, Hinney A, Buhlmann U, Arolt V, Dannlowski U, Romer G, Baune BT, Hebebrand J, Föcker M, Alferink J. Expression of CXCR4 on CD4 + T cells predicts body composition parameters in female adolescents with anorexia nervosa. Front Psychiatry 2022; 13:960905. [PMID: 36226111 PMCID: PMC9549152 DOI: 10.3389/fpsyt.2022.960905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/06/2022] [Indexed: 11/30/2022] Open
Abstract
Anorexia nervosa (AN) is a severe eating disorder characterized by excessive weight loss and lack of recognition of the seriousness of the current low body weight. Individuals with AN frequently exhibit an enhanced inflammatory state and altered blood levels of cytokines and chemokines. However, the expression of chemokine receptors in AN and the association with body composition parameters and treatment effects are still unknown. In this study, we examined the expression of CCR4, CCR6, CXCR3, and CXCR4 on peripheral blood T cells in female adolescents with AN before (T0, n = 24) and after 6 weeks of multimodal therapy (T1, n = 20). We also investigated their value to predict body mass index (BMI) and fat mass index (FMI) at baseline. Using multi-parameter flow cytometry, we found increased expression of CCR4, CXCR3, and CXCR4, but not CCR6, on CD4+ T cells in AN at T0 when compared to healthy controls (HC, n = 20). At T1, CXCR3 and CXCR4 expression decreased in AN. We found a close link between CCR4, CCR6 and CXCR4 expression and the adolescent mental health status in the study cohort as determined by the Strengths and Difficulties Questionnaire (SDQ). Specifically, CXCR4 expression correlated positively with emotional symptoms and peer relationship problems, as well as with the total sum score of the SDQ. In addition, CXCR4 expression on CD4+ T cells was a significant predictor of BMI and FMI in female adolescents. Our findings that CXCR4 expression on T cells is altered in adolescents with AN and predicts body composition parameters in adolescents suggest an impact of this chemokine receptor in the pathogenesis of AN.
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Affiliation(s)
- Jana Freff
- Department of Psychiatry, University of Münster, Münster, Germany.,Cells in Motion Interfaculty Cluster, University of Münster, Münster, Germany
| | - Lisa Bröker
- Department of Psychiatry, University of Münster, Münster, Germany.,Cells in Motion Interfaculty Cluster, University of Münster, Münster, Germany
| | - Rafael Leite Dantas
- Department of Psychiatry, University of Münster, Münster, Germany.,Cells in Motion Interfaculty Cluster, University of Münster, Münster, Germany
| | - Kathrin Schwarte
- Department of Psychiatry, University of Münster, Münster, Germany
| | - Judith Bühlmeier
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Department of Clinical Psychology and Psychotherapy, University of Münster, Münster, Germany.,Faculty of Natural Sciences, Institute of Nutrition, Consumption and Health, University Paderborn, Paderborn, Germany
| | - Isabelle Kraft
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Anke Hinney
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Ulrike Buhlmann
- Department of Clinical Psychology and Psychotherapy, University of Münster, Münster, Germany
| | - Volker Arolt
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Udo Dannlowski
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Georg Romer
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Münster, Münster, Germany
| | - Bernhard T Baune
- Department of Psychiatry, University of Münster, Münster, Germany.,Department of Psychiatry, University of Melbourne, Melbourne, VIC, Australia.,The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC, Australia
| | - Johannes Hebebrand
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Manuel Föcker
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Münster, Münster, Germany
| | - Judith Alferink
- Department of Psychiatry, University of Münster, Münster, Germany.,Cells in Motion Interfaculty Cluster, University of Münster, Münster, Germany
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6
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Ju YJ, Lee KM, Kim G, Kye YC, Kim HW, Chu H, Park BC, Cho JH, Chang PS, Han SH, Yun CH. Change of Dendritic Cell Subsets Involved in Protection Against Listeria monocytogenes Infection in Short-Term-Fasted Mice. Immune Netw 2022; 22:e16. [PMID: 35573152 PMCID: PMC9066004 DOI: 10.4110/in.2022.22.e16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 02/24/2022] [Accepted: 03/13/2022] [Indexed: 12/01/2022] Open
Abstract
The gastrointestinal tract is the first organ directly affected by fasting. However, little is known about how fasting influences the intestinal immune system. Intestinal dendritic cells (DCs) capture antigens, migrate to secondary lymphoid organs, and provoke adaptive immune responses. We evaluated the changes of intestinal DCs in mice with short-term fasting and their effects on protective immunity against Listeria monocytogenes (LM). Fasting induced an increased number of CD103+CD11b− DCs in both small intestinal lamina propria (SILP) and mesenteric lymph nodes (mLN). The SILP CD103+CD11b− DCs showed proliferation and migration, coincident with increased levels of GM-CSF and C-C chemokine receptor type 7, respectively. At 24 h post-infection with LM, there was a significant reduction in the bacterial burden in the spleen, liver, and mLN of the short-term-fasted mice compared to those fed ad libitum. Also, short-term-fasted mice showed increased survival after LM infection compared with ad libitum-fed mice. It could be that significantly high TGF-β2 and Aldh1a2 expression in CD103+CD11b− DCs in mice infected with LM might affect to increase of Foxp3+ regulatory T cells. Changes of major subset of DCs from CD103+ to CD103− may induce the increase of IFN-γ–producing cells with forming Th1-biased environment. Therefore, the short-term fasting affects protection against LM infection by changing major subset of intestinal DCs from tolerogenic to Th1 immunogenic.
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Affiliation(s)
- Young-Jun Ju
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Kyung-Min Lee
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Girak Kim
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Yoon-Chul Kye
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Han Wool Kim
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Hyuk Chu
- Division of Zoonotic and Vector Borne Disease Research, Center for Infectious Disease Research, National Institute of Health, Cheongju 28159, Korea
| | - Byung-Chul Park
- Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
| | - Jae-Ho Cho
- Department of Microbiology and Immunology, Chonnam National University Medical School, Hwasun Hospital, Hwasun 58128, Korea
| | - Pahn-Shick Chang
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
- Center for Agricultural Microorganism and Enzyme, Seoul National University, Seoul 08826, Korea
- Center for Food and Biocenvergence, Seoul National University, Seoul 08826, Korea
| | - Seung Hyun Han
- Department of Oral Microbiology and Immunology, and Dental Research Institute, School of Dentistry, Seoul National University, Seoul 08826, Korea
| | - Cheol-Heui Yun
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
- Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
- Center for Food and Biocenvergence, Seoul National University, Seoul 08826, Korea
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7
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Bai Z, Ye Y, Ye X, Yuan B, Tang Y, Wei J, Jin M, Wang G, Li X. Leptin promotes glycolytic metabolism to induce dendritic cells activation via STAT3-HK2 pathway. Immunol Lett 2021; 239:88-95. [PMID: 34480980 DOI: 10.1016/j.imlet.2021.08.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/08/2021] [Accepted: 08/26/2021] [Indexed: 12/20/2022]
Abstract
Leptin is over-secreted in many autoimmune diseases, which can promote dendritic cells (DCs) maturation and up-regulate the expression of inflammatory cytokines, but the underlying mechanisms are not fully elucidated. Considering the major role of leptin in maintaining energy balance and the significant role of glycolysis in DCs activation, our study aims to investigate whether leptin promotes the activation of DCs via glycolysis and its underlying mechanisms. We demonstrated that leptin promoted the activation of DCs, including up-regulating the expression of co-stimulatory molecules and inflammatory cytokines, enhancing the proliferation and T helper 17 (Th17) cell ratio in peripheral blood mononuclear cells (PBMC) co-cultured with leptin-stimulated DCs. Leptin also enhanced DCs glycolysis with increased glucose consumption, lactate production, and the expression of hexokinase 2 (HK2). In addition, the activation of DCs stimulated by leptin could be inhibited by the glycolysis inhibitor 2-deoxy-d-glucose (2-DG). To explore the signaling pathways involved in leptin-induced HK2 expression, we observed that the inhibitors of STAT3 (NSC74859) could repress the enhancement of HK2 triggered by leptin stimulation. Therefore, our results indicated that leptin promoted glycolytic metabolism to induce DCs activation via STAT3-HK2 pathway.
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Affiliation(s)
- Ziran Bai
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Yunshan Ye
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Xiaokang Ye
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Bo Yuan
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Yawei Tang
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Jing Wei
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Minli Jin
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Guan Wang
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China.
| | - Xia Li
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China.
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8
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Li RJE, de Haas A, Rodríguez E, Kalay H, Zaal A, Jimenez CR, Piersma SR, Pham TV, Henneman AA, de Goeij-de Haas RR, van Vliet SJ, van Kooyk Y. Quantitative Phosphoproteomic Analysis Reveals Dendritic Cell- Specific STAT Signaling After α2-3-Linked Sialic Acid Ligand Binding. Front Immunol 2021; 12:673454. [PMID: 33968084 PMCID: PMC8100677 DOI: 10.3389/fimmu.2021.673454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 04/06/2021] [Indexed: 11/13/2022] Open
Abstract
Dendritic cells (DCs) are key initiators of the adaptive immunity, and upon recognition of pathogens are able to skew T cell differentiation to elicit appropriate responses. DCs possess this extraordinary capacity to discern external signals using receptors that recognize pathogen-associated molecular patterns. These can be glycan-binding receptors that recognize carbohydrate structures on pathogens or pathogen-associated patterns that additionally bind receptors, such as Toll-like receptors (TLRs). This study explores the early signaling events in DCs upon binding of α2-3 sialic acid (α2-3sia) that are recognized by Immune inhibitory Sialic acid binding immunoglobulin type lectins. α2-3sias are commonly found on bacteria, e.g. Group B Streptococcus, but can also be expressed by tumor cells. We investigated whether α2-3sia conjugated to a dendrimeric core alters DC signaling properties. Through phosphoproteomic analysis, we found differential signaling profiles in DCs after α2-3sia binding alone or in combination with LPS/TLR4 co-stimulation. α2-3sia was able to modulate the TLR4 signaling cascade, resulting in 109 altered phosphoproteins. These phosphoproteins were annotated to seven biological processes, including the regulation of the IL-12 cytokine pathway. Secretion of IL-10, the inhibitory regulator of IL-12 production, by DCs was found upregulated after overnight stimulation with the α2-3sia dendrimer. Analysis of kinase activity revealed altered signatures in the JAK-STAT signaling pathway. PhosphoSTAT3 (Ser727) and phosphoSTAT5A (Ser780), involved in the regulation of the IL-12 pathway, were both downregulated. Flow cytometric quantification indeed revealed de- phosphorylation over time upon stimulation with α2-3sia, but no α2-6sia. Inhibition of both STAT3 and -5A in moDCs resulted in a similar cytokine secretion profile as α-3sia triggered DCs. Conclusively, this study revealed a specific alteration of the JAK-STAT pathway in DCs upon simultaneous α2-3sia and LPS stimulation, altering the IL10:IL-12 cytokine secretion profile associated with reduction of inflammation. Targeted control of the STAT phosphorylation status is therefore an interesting lead for the abrogation of immune escape that bacteria or tumors impose on the host.
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Affiliation(s)
- Rui-Jún Eveline Li
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Aram de Haas
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Ernesto Rodríguez
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Hakan Kalay
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Anouk Zaal
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Connie R Jimenez
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Sander R Piersma
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Thang V Pham
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Alex A Henneman
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Richard R de Goeij-de Haas
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Sandra J van Vliet
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Yvette van Kooyk
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
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9
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de Carvalho LGF, Lima WG, Coelho LGV, Cardoso VN, Fernandes SOA. Circulating Leptin Levels as a Potential Biomarker in Inflammatory Bowel Diseases: A Systematic Review and Meta-Analysis. Inflamm Bowel Dis 2021; 27:169-181. [PMID: 32095814 DOI: 10.1093/ibd/izaa037] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND The differential diagnosis of inflammatory bowel diseases (IBDs) between Crohn's disease (CD) and ulcerative colitis (UC) is important for designing an effective therapeutic regimen. However, without any adequate gold standard method for differential diagnosis currently, therapeutic design remains a major challenge in clinical practice. In this context, recent studies have showed that circulating leptin stands out as a potential biomarker for the categorization of IBDs. Thus, we aimed to summarize the current understanding of the prognostic and diagnostic value of serum leptin in patients with IBDs. METHODS A systematic search was performed in PubMed/MEDLINE, Scopus, Cochrane Library, and Web of Science databases. Articles that aimed to study the relationship between circulating levels of leptin and IBDs were included. Finally, the meta-analysis was performed with the mean serum leptin levels in patients with IBDs and healthy controls using RevMan 5.3 software, with I2 > 50% as a criterion for substantial heterogeneity. RESULTS Nineteen studies were included. Serum leptin levels among patients with IBDs and healthy controls did not show a significant difference (95% CI, -2.15 to 0.57; I2, 86%, P ≤ 0.00001). Similarly, there was no association of leptin levels with the activity of IBDs (95% CI, -0.24 to 0.06; I2, 50%; P = 0.13). However, serum leptin levels were significantly higher in patients with CD than those in patients with UC (95% CI, -2.09 to -0.37; I2, 7%; P ≤ 0.36). CONCLUSION This review suggested that serum leptin levels might be a promising biomarker to help in the differentiation between CD and UC.
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Affiliation(s)
- Larissa Gabriela Ferreira de Carvalho
- Laboratório de radioisótopos, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - William Gustavo Lima
- Laboratório de radioisótopos, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Luiz Gonzaga Vaz Coelho
- Instituto ALFA de Gastrenterologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Valbert Nascimento Cardoso
- Laboratório de radioisótopos, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Simone Odília Antunes Fernandes
- Laboratório de radioisótopos, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
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10
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Hwang J, Yoo JA, Yoon H, Han T, Yoon J, An S, Cho JY, Lee J. The Role of Leptin in the Association between Obesity and Psoriasis. Biomol Ther (Seoul) 2021; 29:11-21. [PMID: 32690821 PMCID: PMC7771847 DOI: 10.4062/biomolther.2020.054] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/17/2020] [Accepted: 07/03/2020] [Indexed: 12/11/2022] Open
Abstract
Adipose tissue secretes many adipokines which contribute to various metabolic processes, such as blood pressure, glucose homeostasis, inflammation and angiogenesis. The biology of adipose tissue in an obese individual is abnormally altered in a manner that increases the body’s vulnerability to immune diseases, such as psoriasis. Psoriasis is considered a chronic inflammatory skin disease which is closely associated with being overweight and obese. Additionally, secretion of leptin, a type of adipokine, increases dependently on adipose cell size and adipose accumulation. Likewise, high leptin levels also aggravate obesity via development of leptin resistance, suggesting that leptin and obesity are closely related. Leptin induction in psoriatic patients is mainly driven by the interleukin (IL)-23/helper T (Th) 17 axis pathway. Furthermore, leptin can have an effect on various types of immune cells such as T cells and dendritic cells. Here, we discuss the relationship between obesity and leptin expression as well as the linkage between effect of leptin on immune cells and psoriasis progression.
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Affiliation(s)
- Jaehyeon Hwang
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Ju Ah Yoo
- Molecular Dermatology Laboratory, Department of Integrative Biotechnology & Biocosmetics Research Center, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyungkee Yoon
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Taekyung Han
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jongchan Yoon
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Seoljun An
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jae Youl Cho
- Molecular Immunology Laboratory, Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jongsung Lee
- Molecular Dermatology Laboratory, Department of Integrative Biotechnology & Biocosmetics Research Center, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
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11
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Merigo F, Brandolese A, Facchin S, Boschi F, Di Chio M, Savarino E, D'Incà R, Sturniolo GC, Sbarbati A. Immunolocalization of leptin and leptin receptor in colorectal mucosa of ulcerative colitis, Crohn's disease and control subjects with no inflammatory bowel disease. Cell Tissue Res 2020; 383:1103-1122. [PMID: 33159578 PMCID: PMC7960629 DOI: 10.1007/s00441-020-03297-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 09/14/2020] [Indexed: 01/04/2023]
Abstract
The expression of leptin and leptin receptor (Ob-R) has been partially elucidated in colon of patients with inflammatory bowel diseases (IBDs), even though leptin is involved in angiogenesis and inflammation. We previously reported overexpression of GLUT5 fructose transporter, in aberrant clusters of lymphatic vessels in lamina propria of IBD and controls. Here, we examine leptin and Ob-R expression in the same biopsies. Specimens were obtained from patients with ulcerative colitis (UC), Crohn’s disease (CD) and controls who underwent screening for colorectal cancer, follow-up after polypectomy or with a history of lower gastrointestinal symptoms. Immunohistochemistry revealed leptin in apical and basolateral membranes of short epithelial portions, Ob-R on the apical pole of epithelial cells. Leptin and Ob-R were also identified in structures and cells scattered in the lamina propria. In UC, a significant correlation between leptin and Ob-R in the lamina propria was found in all inflamed samples, beyond non-inflamed samples of the proximal tract, while in CD, it was found in inflamed distal samples. Most of the leptin and Ob-R positive areas in the lamina propria were also GLUT5 immunoreactive in inflamed and non-inflamed mucosa. A significant correlation of leptin or Ob-R expression with GLUT5 was observed in the inflamed distal samples from UC. Our findings suggest that there are different sites of leptin and Ob-R expression in large intestine and those in lamina propria do not reflect the status of mucosal inflammation. The co-localization of leptin and/or Ob-R with GLUT5 may indicate concomitance effects in colorectal lamina propria areas.
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Affiliation(s)
- Flavia Merigo
- Department of Neuroscience, Biomedicine and Movement, Human Anatomy and Histology Section, University of Verona, 37134, Verona, Italy.
| | - Alessandro Brandolese
- Department of Medicine, Gastroenterology Section, University of Verona, 37134, Verona, Italy
| | - Sonia Facchin
- Department of Surgery, Oncology and Gastroenterology, Gastroenterology Section, University Hospital of Padua, 35128, Padua, Italy
| | - Federico Boschi
- Department of Computer Science, University of Verona, 37134, Verona, Italy
| | - Marzia Di Chio
- Department of Diagnostic and Public Health, University of Verona, 37134, Verona, Italy
| | - Edoardo Savarino
- Department of Surgery, Oncology and Gastroenterology, Gastroenterology Section, University Hospital of Padua, 35128, Padua, Italy
| | - Renata D'Incà
- Department of Surgery, Oncology and Gastroenterology, Gastroenterology Section, University Hospital of Padua, 35128, Padua, Italy
| | - Giacomo Carlo Sturniolo
- Department of Surgery, Oncology and Gastroenterology, Gastroenterology Section, University Hospital of Padua, 35128, Padua, Italy
| | - Andrea Sbarbati
- Department of Neuroscience, Biomedicine and Movement, Human Anatomy and Histology Section, University of Verona, 37134, Verona, Italy
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12
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Chang ML, Yang Z, Yang SS. Roles of Adipokines in Digestive Diseases: Markers of Inflammation, Metabolic Alteration and Disease Progression. Int J Mol Sci 2020; 21:ijms21218308. [PMID: 33167521 PMCID: PMC7663948 DOI: 10.3390/ijms21218308] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 12/13/2022] Open
Abstract
Adipose tissue is a highly dynamic endocrine tissue and constitutes a central node in the interorgan crosstalk network through adipokines, which cause pleiotropic effects, including the modulation of angiogenesis, metabolism, and inflammation. Specifically, digestive cancers grow anatomically near adipose tissue. During their interaction with cancer cells, adipocytes are reprogrammed into cancer-associated adipocytes and secrete adipokines to affect tumor cells. Moreover, the liver is the central metabolic hub. Adipose tissue and the liver cooperatively regulate whole-body energy homeostasis via adipokines. Obesity, the excessive accumulation of adipose tissue due to hyperplasia and hypertrophy, is currently considered a global epidemic and is related to low-grade systemic inflammation characterized by altered adipokine regulation. Obesity-related digestive diseases, including gastroesophageal reflux disease, Barrett’s esophagus, esophageal cancer, colon polyps and cancer, non-alcoholic fatty liver disease, viral hepatitis-related diseases, cholelithiasis, gallbladder cancer, cholangiocarcinoma, pancreatic cancer, and diabetes, might cause specific alterations in adipokine profiles. These patterns and associated bases potentially contribute to the identification of prognostic biomarkers and therapeutic approaches for the associated digestive diseases. This review highlights important findings about altered adipokine profiles relevant to digestive diseases, including hepatic, pancreatic, gastrointestinal, and biliary tract diseases, with a perspective on clinical implications and mechanistic explorations.
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Affiliation(s)
- Ming-Ling Chang
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- Correspondence: ; Tel.: +886-3-328-1200 (ext. 8108); Fax: +886-3-327-2236
| | - Zinger Yang
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01655, USA;
| | - Sien-Sing Yang
- Liver Center, Cathay General Hospital Medical Center, Taipei 10630, Taiwan;
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13
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Matsumura S, Kurashima Y, Murasaki S, Morimoto M, Arai F, Saito Y, Katayama N, Kim D, Inagaki Y, Kudo T, Ernst PB, Shimizu T, Kiyono H. Stratified layer analysis reveals intrinsic leptin stimulates cryptal mesenchymal cells for controlling mucosal inflammation. Sci Rep 2020; 10:18351. [PMID: 33110098 PMCID: PMC7591933 DOI: 10.1038/s41598-020-75186-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 10/07/2020] [Indexed: 12/30/2022] Open
Abstract
Mesenchymal cells in the crypt play indispensable roles in the maintenance of intestinal epithelial homeostasis through their contribution to the preservation of stem cells. However, the acquisition properties of the production of stem cell niche factors by the mesenchymal cells have not been well elucidated, due to technical limitations regarding the isolation and subsequent molecular and cellular analyses of cryptal mesenchymal cells. To evaluate the function of mesenchymal cells located at the large intestinal crypt, we established a novel method through which cells are harvested according to the histologic layers of mouse colon, and we compared cellular properties between microenvironmental niches, the luminal mucosa and crypts. The gene expression pattern in the cryptal mesenchymal cells showed that receptors of the hormone/cytokine leptin were highly expressed, and we found a decrease in Wnt2b expression under conditions of leptin receptor deficiency, which also induced a delay in cryptal epithelial proliferation. Our novel stratified layer isolation strategies thus revealed new microenvironmental characteristics of colonic mesenchymal cells, including the intrinsic involvement of leptin in the control of mucosal homeostasis.
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Affiliation(s)
- Seiichi Matsumura
- Department of Innovative Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8670, Japan.,Department of Mucosal Immunology, The University of Tokyo Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan.,Department of Pediatrics, Juntendo University Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Yosuke Kurashima
- Department of Innovative Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8670, Japan. .,Department of Mucosal Immunology, The University of Tokyo Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan. .,International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan. .,Division of Gastroenterology, Department of Medicine, CU-UCSD Center for Mucosal Immunology, Allergy and Vaccines (CU-UCSD cMAV), University of California, San Diego, CA, 92093-0956, USA. .,Division of Comparative Pathology and Medicine, Department of Pathology, University of California San Diego, San Diego, CA, 92093-0956, USA.
| | - Sayuri Murasaki
- Department of Mucosal Immunology, The University of Tokyo Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan
| | - Masako Morimoto
- Department of Innovative Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8670, Japan
| | - Fujimi Arai
- Department of Mucosal Immunology, The University of Tokyo Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan
| | - Yukari Saito
- Department of Innovative Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8670, Japan
| | - Nana Katayama
- Department of Mucosal Immunology, The University of Tokyo Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan
| | - Dayoung Kim
- Department of Mucosal Immunology, The University of Tokyo Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan
| | - Yutaka Inagaki
- Center for Matrix Biology and Medicine, Graduate School of Medicine, Tokai University, Kanagawa, Japan
| | - Takahiro Kudo
- Department of Pediatrics, Juntendo University Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Peter B Ernst
- Division of Gastroenterology, Department of Medicine, CU-UCSD Center for Mucosal Immunology, Allergy and Vaccines (CU-UCSD cMAV), University of California, San Diego, CA, 92093-0956, USA.,Division of Comparative Pathology and Medicine, Department of Pathology, University of California San Diego, San Diego, CA, 92093-0956, USA.,Center for Veterinary Sciences and Comparative Medicine, University of California, San Diego, CA, 92093-0956, USA
| | - Toshiaki Shimizu
- Department of Pediatrics, Juntendo University Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Hiroshi Kiyono
- Department of Mucosal Immunology, The University of Tokyo Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan.,International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan.,Division of Gastroenterology, Department of Medicine, CU-UCSD Center for Mucosal Immunology, Allergy and Vaccines (CU-UCSD cMAV), University of California, San Diego, CA, 92093-0956, USA
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14
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Sun T, Nguyen A, Gommerman JL. Dendritic Cell Subsets in Intestinal Immunity and Inflammation. THE JOURNAL OF IMMUNOLOGY 2020; 204:1075-1083. [PMID: 32071090 DOI: 10.4049/jimmunol.1900710] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 10/11/2019] [Indexed: 12/21/2022]
Abstract
The mammalian intestine is a complex environment that is constantly exposed to Ags derived from food, microbiota, and metabolites. Intestinal dendritic cells (DC) have the responsibility of establishing oral tolerance against these Ags while initiating immune responses against mucosal pathogens. We now know that DC are a heterogeneous population of innate immune cells composed of classical and monocyte-derived DC, Langerhans cells, and plasmacytoid DC. In the intestine, DC are found in organized lymphoid tissues, such as the mesenteric lymph nodes and Peyer's patches, as well as in the lamina propria. In this Brief Review, we review recent work that describes a division of labor between and collaboration among gut DC subsets in the context of intestinal homeostasis and inflammation. Understanding relationships between DC subtypes and their biological functions will rationalize oral vaccine design and will provide insights into treatments that quiet pathological intestinal inflammation.
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Affiliation(s)
- Tian Sun
- Department of Immunology, Faculty of Medicine, University of Toronto, Toronto, Ontario M5S1A8, Canada
| | - Albert Nguyen
- Department of Immunology, Faculty of Medicine, University of Toronto, Toronto, Ontario M5S1A8, Canada
| | - Jennifer L Gommerman
- Department of Immunology, Faculty of Medicine, University of Toronto, Toronto, Ontario M5S1A8, Canada
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15
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Pérez-Pérez A, Sánchez-Jiménez F, Vilariño-García T, Sánchez-Margalet V. Role of Leptin in Inflammation and Vice Versa. Int J Mol Sci 2020; 21:E5887. [PMID: 32824322 PMCID: PMC7460646 DOI: 10.3390/ijms21165887] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/07/2020] [Accepted: 08/14/2020] [Indexed: 12/15/2022] Open
Abstract
Inflammation is an essential immune response for the maintenance of tissue homeostasis. In a general sense, acute and chronic inflammation are different types of adaptive response that are called into action when other homeostatic mechanisms are insufficient. Although considerable progress has been made in understanding the cellular and molecular events that are involved in the acute inflammatory response to infection and tissue injury, the causes and mechanisms of systemic chronic inflammation are much less known. The pathogenic capacity of this type of inflammation is puzzling and represents a common link of the multifactorial diseases, such as cardiovascular diseases and type 2 diabetes. In recent years, interest has been raised by the discovery of novel mediators of inflammation, such as microRNAs and adipokines, with different effects on target tissues. In the present review, we discuss the data emerged from research of leptin in obesity as an inflammatory mediator sustaining multifactorial diseases and how this knowledge could be instrumental in the design of leptin-based manipulation strategies to help restoration of abnormal immune responses. On the other direction, chronic inflammation, either from autoimmune or infectious diseases, or impaired microbiota (dysbiosis) may impair the leptin response inducing resistance to the weight control, and therefore it may be a cause of obesity. Thus, we are reviewing the published data regarding the role of leptin in inflammation, and the other way around, the role of inflammation on the development of leptin resistance and obesity.
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Affiliation(s)
- Antonio Pérez-Pérez
- Department of Medical Biochemistry and Molecular Biology, and Immunology, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain; (F.S.-J.); (T.V.-G.)
| | | | | | - Víctor Sánchez-Margalet
- Department of Medical Biochemistry and Molecular Biology, and Immunology, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain; (F.S.-J.); (T.V.-G.)
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16
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Faleiro R, Liu J, Karunarathne D, Edmundson A, Winterford C, Nguyen TH, Simms LA, Radford-Smith G, Wykes M. Crohn's disease is facilitated by a disturbance of programmed death-1 ligand 2 on blood dendritic cells. Clin Transl Immunology 2019; 8:e01071. [PMID: 31367378 PMCID: PMC6657371 DOI: 10.1002/cti2.1071] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 06/20/2019] [Accepted: 07/08/2019] [Indexed: 01/12/2023] Open
Abstract
Objective Crohn's disease (CD) is characterised by inflammation, predominantly associated with ilea. To investigate the basis for this inflammation in patients with CD, we examined dendritic cells (DC) which are pivotal for maintenance of immunological tolerance in the gut. Methods Ileal biopsies and blood DCs from CD patients and controls were examined by microscopy and flow cytometry for PD‐L1 and PD‐L2 expression, as PD‐L1 has been implicated in colitis but the contribution of PD‐L2 is less clear. In vitro studies, of blood samples from CD patients, were used to demonstrate a functional role for PD‐L2 in disease pathogenesis. Results Quantitative microscopy of CD11c+DCs in inflamed and noninflamed ilea from CD patient showed > 75% loss of these cells from the villi, lamina propria and Peyer's patches compared with non‐CD controls. Given this loss of DCs from ilia of CD patients, we hypothesised DCs may have migrated to the blood as these patients can have extra‐intestinal symptoms. We thus examined blood DCs from CD patients by flow cytometry and found significant increases in PD‐L1 and PD‐L2 expression compared with control samples. Microscopy revealed an aggregated form of PD‐L2 expression, known to drive Th1 immunity, in CD patients but not in controls. In vitro functional studies with PD‐L2 blockade confirmed PD‐L2 contributes significantly to the secretion of pro‐inflammatory cytokines known to cause disease pathogenesis. Conclusion Taken together, this study shows that PD‐L2 can influence the progression of CD and blockade of PD‐L2 may have therapeutic potential.
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Affiliation(s)
- Rebecca Faleiro
- Molecular Immunology Laboratory QIMR Berghofer Medical Research Institute Herston QLD Australia
| | - Ji Liu
- Molecular Immunology Laboratory QIMR Berghofer Medical Research Institute Herston QLD Australia
| | - Deshapriya Karunarathne
- Molecular Immunology Laboratory QIMR Berghofer Medical Research Institute Herston QLD Australia
| | - Aleksandra Edmundson
- Gut Health Laboratory QIMR Berghofer Medical Research Institute Herston QLD Australia
| | - Clay Winterford
- Histology Facility Scientific Services QIMR Berghofer Medical Research Institute Herston QLD Australia
| | - Tam Hong Nguyen
- Flow Cytometry and Imaging Facility Scientific Services QIMR Berghofer Medical Research Institute Herston QLD Australia
| | - Lisa A Simms
- Gut Health Laboratory QIMR Berghofer Medical Research Institute Herston QLD Australia
| | - Graham Radford-Smith
- Gut Health Laboratory QIMR Berghofer Medical Research Institute Herston QLD Australia
| | - Michelle Wykes
- Molecular Immunology Laboratory QIMR Berghofer Medical Research Institute Herston QLD Australia
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17
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Dias ASO, Santos ICL, Delphim L, Fernandes G, Endlich LR, Cafasso MOSD, Maranhão AL, da Silva SR, Andrade RM, Agrawal A, Linhares UC, Bento CAM. Serum leptin levels correlate negatively with the capacity of vitamin D to modulate the in vitro cytokines production by CD4 + T cells in asthmatic patients. Clin Immunol 2019; 205:93-105. [PMID: 31173888 DOI: 10.1016/j.clim.2019.06.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/25/2019] [Accepted: 06/03/2019] [Indexed: 12/14/2022]
Abstract
Both obesity and low vitamin D levels have been associated with allergic asthma (AA) severity. In the present study, severity of AA was associated with obesity but to the in vitro IgE production. In those patients, higher levels of IL-5, IL-6 and IL-17 were quantified in CD4+ T-cell cultures as compared with patients with mild and moderate AA. In addition, the lowest IL-10 levels were detected in the cell cultures from patients with a worse prognosis. Interestingly, the occurrence of AA elevates the plasma levels of leptin, and this adipokine was positively correlated with the release of IL-5, IL-6 and IL-17, but inversely correlated with IL-10 production, by CD4+ T-cells from patients. In AA-derived CD4+ T-cell cultures, 1,25(OH)2D3 was less efficient at inhibiting IL-5, IL-6 and IL-17 production, and up regulating IL-10 release, as those from healthy subjects. Interestingly, the in vitro immunomodulatory effects of vitamin D were inversely correlated with serum leptin levels. In summary, our findings suggested that obesity, probably due to the overproduction of leptin, negatively impacts AA as it favors imbalance between Th2/Th17 and regulatory phenotypes. The deleterious effects of leptin may also be due to its ability to counter-regulate the immunosuppressive effects of vitamin D.
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Affiliation(s)
- Aleida S O Dias
- Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Brazil; Post-graduate Program in Microbiology, University of the State of Rio de Janeiro, Brazil
| | - Isabelle C L Santos
- Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Brazil
| | - Letícia Delphim
- Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Brazil
| | - Gabriel Fernandes
- Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Brazil
| | - Larissa R Endlich
- Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Brazil
| | | | - Ana Lúcia Maranhão
- Pulmonology Service, Federal University of the State of Rio de Janeiro, Brazil
| | | | - Regis M Andrade
- Department of General Medicine Department, Federal University of the State of Rio de Janeiro, Brazil
| | - Anshu Agrawal
- Department of Medicine, University of California, Irvine, CA, USA
| | - Ulisses C Linhares
- Department of Morphological Sciences, Federal University of the State of Rio de Janeiro, Brazil
| | - Cleonice A M Bento
- Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Brazil; Post-graduate Program in Microbiology, University of the State of Rio de Janeiro, Brazil.
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18
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Yan J, Fu Z, Zhang L, Li C. Orai1 is involved in leptin-sensitive cell maturation in mouse dendritic cells. Biochem Biophys Res Commun 2018; 503:1747-1753. [PMID: 30054044 DOI: 10.1016/j.bbrc.2018.07.108] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 07/21/2018] [Indexed: 10/28/2022]
Abstract
Store operated calcium entry(SOCE) is known to play a pivotal role in DCs functions including migration, maturation and antigen-presenting ability. Orai1, the major component of SOCE which mainly pairs with Stim1, is surely involved in the regulation of DCs functions. Leptin is recently found to mature DCs, we aim to evaluate the role of Orai1 in leptin-induced dendritic cells(DCs) maturation process and elucidate the mechanism. To this end, Flow cytometry and ELISA were utilized to detect the costimulatory molecule CD86 expression and IL-12 secretion, respectively. Transwell assay was used to examine DCs migration capacity. To evaluate the activity of SOCE, calcium(Ca2+) imaging was performed. Firstly, we confirmed the positive effects of leptin upon SOCE and Orai1 expression in DCs isolated from mouse bone marrow. Secondly, we showed that the effects of leptin on DCs migration and maturation are Orai1 dependent. Moreover, Janus kinase 2(Jak2) silencing inhibited leptin-induced Orai1 expression and influenced DCs functions including migration and maturation as well as IL-12 secretion. In conclusion, our results imply that leptin regulates Orai1 by activating Jak2 signaling pathway, hence facilitating DCs migration and maturation.
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Affiliation(s)
- Jing Yan
- Department of Physiology and Neurobiology, Xinxiang Medical University, China; Sino-UK Joint Laboratory of Brain Functions and Injury, Xinxiang Medical University, Henan province, China
| | - Zixing Fu
- Department of Physiology and Neurobiology, Xinxiang Medical University, China; Sino-UK Joint Laboratory of Brain Functions and Injury, Xinxiang Medical University, Henan province, China
| | - Libin Zhang
- Department of Physiology and Neurobiology, Xinxiang Medical University, China; Sino-UK Joint Laboratory of Brain Functions and Injury, Xinxiang Medical University, Henan province, China
| | - Chaokun Li
- Department of Physiology and Neurobiology, Xinxiang Medical University, China; Sino-UK Joint Laboratory of Brain Functions and Injury, Xinxiang Medical University, Henan province, China.
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19
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Transcriptional profiling reveals monocyte-related macrophages phenotypically resembling DC in human intestine. Mucosal Immunol 2018; 11:1512-1523. [PMID: 30038215 DOI: 10.1038/s41385-018-0060-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 06/04/2018] [Accepted: 06/05/2018] [Indexed: 02/04/2023]
Abstract
The tissue dendritic cell (DC) compartment is heterogeneous, and the ontogeny and functional specialization of human tissue conventional DC (cDC) subsets and their relationship with monocytes is unresolved. Here we identify monocyte-related CSF1R+Flt3- antigen presenting cells (APCs) that constitute about half of the cells classically defined as SIRPα+ DCs in the steady-state human small intestine. CSF1R+Flt3- APCs express calprotectin and very low levels of CD14, are transcriptionally related to monocyte-derived cells, and accumulate during inflammation. CSF1R+Flt3- APCs show typical macrophage characteristics functionally distinct from their Flt3+ cDC counterparts: under steady-state conditions they excel at antigen uptake, have a lower migratory potential, and are inefficient activators of naïve T cells. These results have important implications for the understanding of the ontogenetic and functional heterogeneity within human tissue DCs and their relation to the monocyte lineage.
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20
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Francisco V, Pino J, Campos-Cabaleiro V, Ruiz-Fernández C, Mera A, Gonzalez-Gay MA, Gómez R, Gualillo O. Obesity, Fat Mass and Immune System: Role for Leptin. Front Physiol 2018; 9:640. [PMID: 29910742 PMCID: PMC5992476 DOI: 10.3389/fphys.2018.00640] [Citation(s) in RCA: 235] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 05/11/2018] [Indexed: 12/13/2022] Open
Abstract
Obesity is an epidemic disease characterized by chronic low-grade inflammation associated with a dysfunctional fat mass. Adipose tissue is now considered an extremely active endocrine organ that secretes cytokine-like hormones, called adipokines, either pro- or anti-inflammatory factors bridging metabolism to the immune system. Leptin is historically one of most relevant adipokines, with important physiological roles in the central control of energy metabolism and in the regulation of metabolism-immune system interplay, being a cornerstone of the emerging field of immunometabolism. Indeed, leptin receptor is expressed throughout the immune system and leptin has been shown to regulate both innate and adaptive immune responses. This review discusses the latest data regarding the role of leptin as a mediator of immune system and metabolism, with particular emphasis on its effects on obesity-associated metabolic disorders and autoimmune and/or inflammatory rheumatic diseases.
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Affiliation(s)
- Vera Francisco
- The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Servizo Galego de Saude and Instituto de Investigación Sanitaria de Santiago, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Jesús Pino
- The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Servizo Galego de Saude and Instituto de Investigación Sanitaria de Santiago, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Victor Campos-Cabaleiro
- The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Servizo Galego de Saude and Instituto de Investigación Sanitaria de Santiago, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Clara Ruiz-Fernández
- The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Servizo Galego de Saude and Instituto de Investigación Sanitaria de Santiago, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Antonio Mera
- Servizo Galego de Saude, Division of Rheumatology, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Miguel A Gonzalez-Gay
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Hospital Universitario Marqués de Valdecilla, Universidad de Cantabria and IDIVAL, Santander, Spain
| | - Rodolfo Gómez
- Musculoskeletal Pathology Group, Servizo Galego de Saude and Instituto de Investigación Sanitaria de Santiago, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Oreste Gualillo
- The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Servizo Galego de Saude and Instituto de Investigación Sanitaria de Santiago, Santiago University Clinical Hospital, Santiago de Compostela, Spain
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21
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Bernardo D, Chaparro M, Gisbert JP. Human Intestinal Dendritic Cells in Inflammatory Bowel Diseases. Mol Nutr Food Res 2018; 62:e1700931. [PMID: 29336524 DOI: 10.1002/mnfr.201700931] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 01/03/2018] [Indexed: 12/21/2022]
Abstract
Inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis, is a serious, costly, and persistent health problem with an estimated prevalence in Western countries around 0.5% of the general population; its socioeconomic impact is comparable with that for chronic diseases such as diabetes. Conventional treatment involves escalating drug regimens with concomitant side effects followed, in some cases, by surgical interventions, which are often multiple, mainly in Crohn's disease. The goal of finding a targeted gut-specific immunotherapy for IBD patients is therefore an important unmet need. However, to achieve this goal we first must understand how dendritic cells (DC), the most potent antigen present cells of the immune system, control the immune tolerance in the gastrointestinal tract and how their properties are altered in those patients suffering from IBD. In this review, we summarize the current available information regarding human intestinal DC subsets composition, phenotype, and function in the human gastrointestinal tract describing how, in the IBD mucosa, DC display pro-inflammatory properties, which drive disease progression. A better understanding of the mechanisms inducing DC abnormal profile in IBD may provide us with novel tools to perform tissue specific immunomodulation.
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Affiliation(s)
- David Bernardo
- Gastroenterology Unit, Hospital Universitario de La Princesa and Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - María Chaparro
- Gastroenterology Unit, Hospital Universitario de La Princesa and Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Javier P Gisbert
- Gastroenterology Unit, Hospital Universitario de La Princesa and Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
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22
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Vora R, Bernardo D, Durant L, Reddi D, Hart AL, Fell JME, Al-Hassi HO, Knight SC. Age-related alterations in blood and colonic dendritic cell properties. Oncotarget 2017; 7:11913-22. [PMID: 26942871 PMCID: PMC4914258 DOI: 10.18632/oncotarget.7799] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 01/30/2016] [Indexed: 11/25/2022] Open
Abstract
Background Dendritic cells (DC) determine initiation, type and location of immune responses and, in adults, show decreased Toll-like receptors and some increased cytokine levels on ageing. Few studies in children have characterised DC or explored DC-related mechanisms producing age-related immune changes. Results The pDC marker BDCA2 (but not CD123) was absent in pre-pubertal children and numbers of pDC decreased with age. Blood and colonic DC were more mature and activated in adults. Decrease in pDC numbers correlated with reduced GM-CSF levels with aging, but increasing IL-4 and IL-8 levels correlated with a more activated DC profile in blood. CXCL16 levels decreased with age. Methods Blood and colonic DC phenotypes were determined in healthy adults and children by flow cytometry and correlated with aging. Blood DC were divided into plasmacytoid (pDC) and myeloid (mDC) while only mDC were identified in colon. Serum cytokine levels were determined by multiplex cytokine assays and correlated with DC properties. Conclusions In children, lack of BDCA2, a receptor mediating antigen capture and inhibiting interferon induction, may be immunologically beneficial during immune development. Conversely, reduced pDC numbers, probably secondary to decreasing GM-CSF and increasing cytokine-induced maturation of DC are likely to determine deteriorating immunity with ageing.
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Affiliation(s)
- Rakesh Vora
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK.,London North West Healthcare NHS Trust, St. Mark's Campus, Harrow, UK.,Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - David Bernardo
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK.,Gastroenterology Unit, Hospital Universitario de La Princesa and Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Lydia Durant
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK
| | - Durga Reddi
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK
| | - Ailsa L Hart
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK.,London North West Healthcare NHS Trust, St. Mark's Campus, Harrow, UK
| | - John M E Fell
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK.,Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - Hafid O Al-Hassi
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK
| | - Stella C Knight
- Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark's Campus, Harrow, UK
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23
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Bai T, Li Y, Xia J, Jiang Y, Zhang L, Wang H, Qian W, Song J, Hou X. Piezo2: A Candidate Biomarker for Visceral Hypersensitivity in Irritable Bowel Syndrome? J Neurogastroenterol Motil 2017; 23:453-463. [PMID: 28044050 PMCID: PMC5503296 DOI: 10.5056/jnm16114] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 10/17/2016] [Accepted: 10/23/2016] [Indexed: 12/13/2022] Open
Abstract
Background/Aims Currently, there exists no biomarker for visceral hypersensitivity in irritable bowel syndrome (IBS). Piezo proteins have been proven to play an important role in the mechanical stimulation to induce visceral pain in other tissues and may also be a biomarker candidate. The aim of this study was to test the expressions of Piezo1 and Piezo2 proteins in the intestinal epithelial cells from different intestinal segments and to explore the correlation between Piezo proteins expression and visceral pain threshold. Methods Post-infectious IBS was induced in mice via a Trichinella spiralis infection. Visceral sensitivity was measured with abdominal withdrawal reflex to colorectal distention. Inflammation in the small intestine and colon was scored with H&E staining. Expression location of Piezo proteins was confirmed by immunohistochemistry. Abundance of Piezo proteins were measured with real-time reverse transcriptase polymerase chain reaction. Results Piezo1 and Piezo2 proteins were expressed in the intestinal epithelial cells. The expression levels of Piezo1 and Piezo2 were abundant in the colon than the small intestine (P < 0.001 for Piezo1, P = 0.003 for Piezo2). Expression of Piezo2 in the colon significantly correlated to the visceral sensitivity (r = −0.718, P = 0.001) rather than the mucosal inflammation. Conclusion Piezo2 is a candidate biomarker for visceral hypersensitivity in IBS.
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Affiliation(s)
- Tao Bai
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Li
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Xia
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yudong Jiang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lei Zhang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huan Wang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Qian
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Song
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaohua Hou
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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24
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Abella V, Scotece M, Conde J, Pino J, Gonzalez-Gay MA, Gómez-Reino JJ, Mera A, Lago F, Gómez R, Gualillo O. Leptin in the interplay of inflammation, metabolism and immune system disorders. Nat Rev Rheumatol 2017; 13:100-109. [PMID: 28053336 DOI: 10.1038/nrrheum.2016.209] [Citation(s) in RCA: 323] [Impact Index Per Article: 46.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Leptin is one of the most relevant factors secreted by adipose tissue and the forerunner of a class of molecules collectively called adipokines. Initially discovered in 1994, its crucial role as a central regulator in energy homeostasis has been largely described during the past 20 years. Once secreted into the circulation, leptin reaches the central and peripheral nervous systems and acts by binding and activating the long form of leptin receptor (LEPR), regulating appetite and food intake, bone mass, basal metabolism, reproductive function and insulin secretion, among other processes. Research on the regulation of different adipose tissues has provided important insights into the intricate network that links nutrition, metabolism and immune homeostasis. The neuroendocrine and immune systems communicate bi-directionally through common ligands and receptors during stress responses and inflammation, and control cellular immune responses in several pathological situations including immune-inflammatory rheumatic diseases. This Review discusses the latest findings regarding the role of leptin in the immune system and metabolism, with particular emphasis on its effect on autoimmune and/or inflammatory rheumatic diseases, such as rheumatoid arthritis and osteoarthritis.
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Affiliation(s)
- Vanessa Abella
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Morena Scotece
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Javier Conde
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Jesús Pino
- SERGAS (Servizo Galego de Saude), Santiago University Clinical Hospital, Division of Orthopaedic Surgery and Traumatology, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Miguel Angel Gonzalez-Gay
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Universidad de Cantabria and IDIVAL, Hospital Universitario Marqués de Valdecilla, Av. Valdecilla, Santander 39008, Spain
| | - Juan J Gómez-Reino
- SERGAS (Servizo Galego de Saude), Santiago University Clinical Hospital, Division of Rheumatology, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Antonio Mera
- SERGAS (Servizo Galego de Saude), Santiago University Clinical Hospital, Division of Rheumatology, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Francisca Lago
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), Department of Cellular and Molecular Cardiology, CIBERCV (Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares), Building C, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Rodolfo Gómez
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
| | - Oreste Gualillo
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana S/N, Santiago de Compostela 15706, Spain
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25
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Chen W, Lu C, Hirota C, Iacucci M, Ghosh S, Gui X. Smooth Muscle Hyperplasia/Hypertrophy is the Most Prominent Histological Change in Crohn's Fibrostenosing Bowel Strictures: A Semiquantitative Analysis by Using a Novel Histological Grading Scheme. J Crohns Colitis 2017; 11:92-104. [PMID: 27364949 DOI: 10.1093/ecco-jcc/jjw126] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND The simplistically and ambiguously termed 'fibrostenosis' of bowel is a hallmark of severe Crohn's disease [CD] and a major contributor to medical treatment failure. Non-invasive imaging assessment and novel medical therapy targeting this condition are under investigation, which particularly requires a better understanding of the underlying histological basis. METHODS We analysed 48 patients with stricturing Crohn's ileitis or/and colitis that required surgical resection. The most representative sections of the fibrostenotic, non-stenotic and uninvolved regions were reviewed for histological analysis. For each layer of bowel wall (mucosa including muscularis mucosae [MU], submucosa [SM], muscularis propria [MP], subserosal adventitia [SS]), histological abnormalities were evaluated individually, including active and chronic inflammation, fibrosis, smooth muscle hyperplasia or hypertrophy, neuronal hypertrophy and adipocyte proliferation. A novel semiquantitative histological grading scheme was created. RESULTS The most significant histopathological features characterizing the stricturing intestines were smooth muscle hyperplasia of SM, hypertrophy of MP and chronic inflammation. The muscular alteration was predominant in all layers. The overall muscular hyperplasia/hypertrophy was positively correlated with chronic inflammation and negatively correlated with fibrosis, whereas SM muscular hyperplasia was also associated with MU active inflammation. Similar changes, to a lesser extent, occurred in the adjacent non-stenotic inflamed bowel as well. CONCLUSIONS In CD-associated 'fibrostenosis', it is the smooth muscle hyperplasia/hypertrophy that contributes most to the stricturing phenotype, whereas fibrosis is less significant. The 'inflammation-smooth muscle hyperplasia axis' may be the most important in the pathogenesis of Crohn's strictures.
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Affiliation(s)
- Wenqian Chen
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada
| | - Cathy Lu
- Division of Gastroenterology, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Christina Hirota
- Division of Gastroenterology, Department of Medicine, University of Calgary, Calgary, AB, Canada
| | - Marietta Iacucci
- Division of Gastroenterology, Department of Medicine, University of Calgary, Calgary, AB, Canada
| | - Subrata Ghosh
- Division of Gastroenterology, Department of Medicine, University of Calgary, Calgary, AB, Canada
| | - Xianyong Gui
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada .,Calgary Laboratory Services, Calgary, AB, Canada
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26
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Abstract
PURPOSE OF REVIEW To highlight recent advances in the understanding of nutritional immunology and in the development of novel therapeutics for inflammatory bowel disease (IBD). RECENT FINDINGS We highlight the variety of factors that contribute to the interaction of the immune system and nutrition including the microbiome and the nervous system stimulation of the gut. We describe the potential for therapeutic development in IBD. Further, we review the cellular metabolic effects on immune activation and promising therapeutic targets. Finally, we show how the progression of understanding the role of lanthionine synthetase C-like 2 has encompassed both nutritional and therapeutic advances and led to the development of novel oral small molecule therapeutics for IBD. SUMMARY Nutritional immunology and drug development research centered around immunoregulatory pathways can provide safer and more effective drugs while accelerating the path to cures.
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27
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de Jesus ER, Isidro RA, Cruz ML, Marty H, Appleyard CB. Adoptive Transfer of Dendritic Cells Expressing Fas Ligand Modulates Intestinal Inflammation in a Model of Inflammatory Bowel Disease. ACTA ACUST UNITED AC 2016; 7. [PMID: 27274906 PMCID: PMC4892183 DOI: 10.4172/2155-9899.1000411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background Inflammatory bowel diseases (IBD) are chronic relapsing inflammatory conditions of unknown cause and likely result from the loss of immunological tolerance, which leads to over-activation of the gut immune system. Gut macrophages and dendritic cells (DCs) are essential for maintaining tolerance, but can also contribute to the inflammatory response in conditions such as IBD. Current therapies for IBD are limited by high costs and unwanted toxicities and side effects. The possibility of reducing intestinal inflammation with DCs genetically engineered to over-express the apoptosis-inducing FasL (FasL-DCs) has not yet been explored. Objective Investigate the immunomodulatory effect of administering FasL-DCs in the rat trinitrobenzene sulfonic acid (TNBS) model of acute colitis. Methods Expression of FasL on DCs isolated from the mesenteric lymph nodes (MLNs) of normal and TNBS-colitis rats was determined by flow cytometry. Primary rat bone marrow DCs were transfected with rat FasL plasmid (FasL-DCs) or empty vector (EV-DCs). The effect of these DCs on T cell IFNγ secretion and apoptosis was determined by ELISPOT and flow cytometry for Annexin V, respectively. Rats received FasL-DCs or EV-DCs intraperitoneally 96 and 48 hours prior to colitis induction with TNBS. Colonic T cell and neutrophil infiltration was determined by immunohistochemistry for CD3 and myeloperoxidase activity assay, respectively. Macrophage number and phenotype was measured by double immunofluorescence for CD68 and inducible Nitric Oxide Synthase. Results MLN dendritic cells from normal rats expressed more FasL than those from colitic rats. Compared to EV-DCs, FasL-DCs reduced T cell IFNγ secretion and increased T cell apoptosis in vitro. Adoptive transfer of FasL-DCs decreased macroscopic and microscopic damage scores and reduced colonic T cells, neutrophils, and proinflammatory macrophages when compared to EV-DC adoptive transfer. Conclusion FasL-DCs are effective at treating colonic inflammation in this model of IBD and represent a possible new treatment for patients with IBD.
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Affiliation(s)
- Edelmarie Rivera de Jesus
- Ponce Health Sciences University-Medical School and Ponce Research Institute, Ponce, PR 00732, USA; Department of Biology, University of Puerto Rico - Ponce Campus, Ponce, PR 00732, USA
| | - Raymond A Isidro
- Ponce Health Sciences University-Medical School and Ponce Research Institute, Ponce, PR 00732, USA
| | - Myrella L Cruz
- Ponce Health Sciences University-Medical School and Ponce Research Institute, Ponce, PR 00732, USA
| | - Harry Marty
- Ponce Health Sciences University-Medical School and Ponce Research Institute, Ponce, PR 00732, USA
| | - Caroline B Appleyard
- Ponce Health Sciences University-Medical School and Ponce Research Institute, Ponce, PR 00732, USA
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28
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Naylor C, Petri WA. Leptin Regulation of Immune Responses. Trends Mol Med 2016; 22:88-98. [PMID: 26776093 DOI: 10.1016/j.molmed.2015.12.001] [Citation(s) in RCA: 162] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 12/06/2015] [Accepted: 12/10/2015] [Indexed: 12/19/2022]
Abstract
Leptin is a regulatory hormone with multiple roles in the immune system. We favor the concept that leptin signaling 'licenses' various immune cells to engage in immune responses and/or to differentiate. Leptin is an inflammatory molecule that is capable of activating both adaptive and innate immunity. It can also 'enhance' immune functions, including inflammatory cytokine production in macrophages, granulocyte chemotaxis, and increased Th17 proliferation. Leptin can also 'inhibit' cells; CD4(+) T cells are inhibited from differentiating into regulatory T cells in the presence of elevated leptin, while NK cells can exhibit impaired cytotoxicity under the same circumstances. Consequently, understanding the effect of leptin signaling is important to appreciate various aspects of immune dysregulation observed in malnutrition, obesity, and autoimmunity.
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Affiliation(s)
- Caitlin Naylor
- Medical Research Council Unit, Atlantic Blvd, Serrekunda, Gambia.
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29
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Bernardo D, Durant L, Mann ER, Bassity E, Montalvillo E, Man R, Vora R, Reddi D, Bayiroglu F, Fernández-Salazar L, English NR, Peake ST, Landy J, Lee GH, Malietzis G, Siaw YH, Murugananthan AU, Hendy P, Sánchez-Recio E, Phillips RK, Garrote JA, Scott P, Parkhill J, Paulsen M, Hart AL, Al-Hassi HO, Arranz E, Walker AW, Carding SR, Knight SC. Chemokine (C-C Motif) Receptor 2 Mediates Dendritic Cell Recruitment to the Human Colon but Is Not Responsible for Differences Observed in Dendritic Cell Subsets, Phenotype, and Function Between the Proximal and Distal Colon. Cell Mol Gastroenterol Hepatol 2015; 2:22-39.e5. [PMID: 26866054 PMCID: PMC4705905 DOI: 10.1016/j.jcmgh.2015.08.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 08/21/2015] [Indexed: 01/28/2023]
Abstract
BACKGROUND & AIMS Most knowledge about gastrointestinal (GI)-tract dendritic cells (DC) relies on murine studies where CD103+ DC specialize in generating immune tolerance with the functionality of CD11b+/- subsets being unclear. Information about human GI-DC is scarce, especially regarding regional specifications. Here, we characterized human DC properties throughout the human colon. METHODS Paired proximal (right/ascending) and distal (left/descending) human colonic biopsies from 95 healthy subjects were taken; DC were assessed by flow cytometry and microbiota composition assessed by 16S rRNA gene sequencing. RESULTS Colonic DC identified were myeloid (mDC, CD11c+CD123-) and further divided based on CD103 and SIRPα (human analog of murine CD11b) expression. CD103-SIRPα+ DC were the major population and with CD103+SIRPα+ DC were CD1c+ILT3+CCR2+ (although CCR2 was not expressed on all CD103+SIRPα+ DC). CD103+SIRPα- DC constituted a minor subset that were CD141+ILT3-CCR2-. Proximal colon samples had higher total DC counts and fewer CD103+SIRPα+ cells. Proximal colon DC were more mature than distal DC with higher stimulatory capacity for CD4+CD45RA+ T-cells. However, DC and DC-invoked T-cell expression of mucosal homing markers (β7, CCR9) was lower for proximal DC. CCR2 was expressed on circulating CD1c+, but not CD141+ mDC, and mediated DC recruitment by colonic culture supernatants in transwell assays. Proximal colon DC produced higher levels of cytokines. Mucosal microbiota profiling showed a lower microbiota load in the proximal colon, but with no differences in microbiota composition between compartments. CONCLUSIONS Proximal colonic DC subsets differ from those in distal colon and are more mature. Targeted immunotherapy using DC in T-cell mediated GI tract inflammation may therefore need to reflect this immune compartmentalization.
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Key Words
- AMOVA, analysis of molecular variance
- CCL, chemokine (C-C motif) ligand
- CCR, chemokine (C-C motif) receptor
- CCR2
- CFSE, 5-carboxy fluorescein diacetate succinimidyl ester
- DC, dendritic cells
- DL, detection limit
- Dendritic Cells
- Distal Colon
- FACS, fluorescence-activated cell sorting
- FITC, fluorescein isothiocyanate
- GI, gastrointestinal
- Human Gastrointestinal Tract
- IL, interleukin
- ILT3, Ig-like transcript 3
- LPMC, lamina propria mononuclear cells
- Microbiota
- Mφ, macrophages
- PBMC, peripheral blood mononuclear cells
- PCR, polymerase chain reaction
- Proximal Colon
- RALDH2, retinaldehyde dehydrogenase type 2
- SIRPα, signal regulatory protein α
- SPB, sodium phosphate buffer
- Treg, regulatory T-cells
- mDC, myeloid dendritic cell
- pDC, plasmacytoid dendritic cell
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Affiliation(s)
- David Bernardo
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom
| | - Lydia Durant
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom
| | - Elizabeth R. Mann
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom,Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Elizabeth Bassity
- Gut Health and Food Safety Programme, Institute of Food Research, Norwich, United Kingdom
| | - Enrique Montalvillo
- Mucosal Immunology Group, Instituto de Biología y Genética Molecular (IBGM), Universidad de Valladolid–CSIC, Valladolid, Spain
| | - Ripple Man
- St. Mark’s Hospital, North West London Hospitals NHS Trust, Harrow, United Kingdom
| | - Rakesh Vora
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom,St. Mark’s Hospital, North West London Hospitals NHS Trust, Harrow, United Kingdom
| | - Durga Reddi
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom
| | - Fahri Bayiroglu
- Department of Physiology, Faculty of Medicine, Yildirim Beyazit University, Ankara, Turkey,Faculty of Farmacy, Agri İbrahim Cecen University, Agri, Turkey
| | - Luis Fernández-Salazar
- Gastroenterology Service, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - Nick R. English
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom
| | - Simon T.C. Peake
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom,St. Mark’s Hospital, North West London Hospitals NHS Trust, Harrow, United Kingdom
| | - Jon Landy
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom,St. Mark’s Hospital, North West London Hospitals NHS Trust, Harrow, United Kingdom
| | - Gui H. Lee
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom,St. Mark’s Hospital, North West London Hospitals NHS Trust, Harrow, United Kingdom
| | - George Malietzis
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom,St. Mark’s Hospital, North West London Hospitals NHS Trust, Harrow, United Kingdom
| | - Yi Harn Siaw
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom,St. Mark’s Hospital, North West London Hospitals NHS Trust, Harrow, United Kingdom
| | - Aravinth U. Murugananthan
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom,St. Mark’s Hospital, North West London Hospitals NHS Trust, Harrow, United Kingdom
| | - Phil Hendy
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom,St. Mark’s Hospital, North West London Hospitals NHS Trust, Harrow, United Kingdom
| | - Eva Sánchez-Recio
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom
| | - Robin K.S. Phillips
- St. Mark’s Hospital, North West London Hospitals NHS Trust, Harrow, United Kingdom
| | - Jose A. Garrote
- Mucosal Immunology Group, Instituto de Biología y Genética Molecular (IBGM), Universidad de Valladolid–CSIC, Valladolid, Spain,Genetics and Molecular Biology Department, Clinical Laboratory Service, Hospital Universitario Rio Hortega, Valladolid, Spain
| | - Paul Scott
- Pathogen Genomics Group, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire, United Kingdom
| | - Julian Parkhill
- Pathogen Genomics Group, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire, United Kingdom
| | - Malte Paulsen
- National Heart and Lung Institute, Imperial College London, London
| | - Ailsa L. Hart
- St. Mark’s Hospital, North West London Hospitals NHS Trust, Harrow, United Kingdom
| | - Hafid O. Al-Hassi
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom
| | - Eduardo Arranz
- St. Mark’s Hospital, North West London Hospitals NHS Trust, Harrow, United Kingdom
| | - Alan W. Walker
- Pathogen Genomics Group, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire, United Kingdom,Microbiology Group, Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, United Kingdom
| | - Simon R. Carding
- Gut Health and Food Safety Programme, Institute of Food Research, Norwich, United Kingdom,Norwich Medical School, University of East Anglia, Norwich, United Kingdom
| | - Stella C. Knight
- Antigen Presentation Research Group, Imperial College London, Harrow, United Kingdom,Correspondence Address correspondence to: Stella C. Knight, PhD, Antigen Presentation Research Group, Imperial College London, Northwick Park and St. Mark’s Campus, Watford Road, Harrow, HA1 3UJ, United Kingdom. fax: +44 (0) 20 8869 3532.Antigen Presentation Research GroupImperial College LondonNorthwick Park and St. Mark’s Campus, Watford RoadHarrowHA1 3UJUnited Kingdom
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30
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Landy J, Walker AW, Li JV, Al-Hassi HO, Ronde E, English NR, Mann ER, Bernardo D, McLaughlin SD, Parkhill J, Ciclitira PJ, Clark SK, Knight SC, Hart AL. Variable alterations of the microbiota, without metabolic or immunological change, following faecal microbiota transplantation in patients with chronic pouchitis. Sci Rep 2015; 5:12955. [PMID: 26264409 PMCID: PMC4532993 DOI: 10.1038/srep12955] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 07/06/2015] [Indexed: 12/17/2022] Open
Abstract
Faecal microbiota transplantation (FMT) is effective in the treatment of Clostridium difficile infection, where efficacy correlates with changes in microbiota diversity and composition. The effects of FMT on recipient microbiota in inflammatory bowel diseases (IBD) remain unclear. We assessed the effects of FMT on microbiota composition and function, mucosal immune response, and clinical outcome in patients with chronic pouchitis. Eight patients with chronic pouchitis (current PDAI ≥7) were treated with FMT via nasogastric administration. Clinical activity was assessed before and four weeks following FMT. Faecal coliform antibiotic sensitivities were analysed, and changes in pouch faecal and mucosal microbiota assessed by 16S rRNA gene pyrosequencing and (1)H NMR spectroscopy. Lamina propria dendritic cell phenotype and cytokine profiles were assessed by flow cytometric analysis and multiplex assay. Following FMT, there were variable shifts in faecal and mucosal microbiota composition and, in some patients, changes in proportional abundance of species suggestive of a "healthier" pouch microbiota. However, there were no significant FMT-induced metabolic or immunological changes, or beneficial clinical response. Given the lack of clinical response following FMT via a single nasogastric administration our results suggest that FMT/bacteriotherapy for pouchitis patients requires further optimisation.
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Affiliation(s)
- J Landy
- 1] IBD Unit, Gastroenterology Dept. St Mark's Hospital, Harrow, London, UK [2] Antigen Presentation Research Group, Faculty of Medicine, Imperial College London, Northwick Park and St Mark's Campus, Harrow, UK
| | - A W Walker
- 1] Pathogen Genomics Group, Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, UK [2] Microbiology Group, Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Aberdeen, UK
| | - J V Li
- Centre for Digestive and Gut Health &Division of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
| | - H O Al-Hassi
- Antigen Presentation Research Group, Faculty of Medicine, Imperial College London, Northwick Park and St Mark's Campus, Harrow, UK
| | - E Ronde
- Antigen Presentation Research Group, Faculty of Medicine, Imperial College London, Northwick Park and St Mark's Campus, Harrow, UK
| | - N R English
- Antigen Presentation Research Group, Faculty of Medicine, Imperial College London, Northwick Park and St Mark's Campus, Harrow, UK
| | - E R Mann
- Antigen Presentation Research Group, Faculty of Medicine, Imperial College London, Northwick Park and St Mark's Campus, Harrow, UK
| | - D Bernardo
- Antigen Presentation Research Group, Faculty of Medicine, Imperial College London, Northwick Park and St Mark's Campus, Harrow, UK
| | - S D McLaughlin
- School of Health and Social Care, Bournemouth University, Bournemouth, UK
| | - J Parkhill
- Pathogen Genomics Group, Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, UK
| | - P J Ciclitira
- Department of Gastroenterology, The Rayne Institute, St Thomas' Hospital, London, UK
| | - S K Clark
- Department of Surgery, St Mark's Hospital, Harrow, London, UK
| | - S C Knight
- Antigen Presentation Research Group, Faculty of Medicine, Imperial College London, Northwick Park and St Mark's Campus, Harrow, UK
| | - A L Hart
- 1] IBD Unit, Gastroenterology Dept. St Mark's Hospital, Harrow, London, UK [2] Antigen Presentation Research Group, Faculty of Medicine, Imperial College London, Northwick Park and St Mark's Campus, Harrow, UK
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31
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Hevia A, Bernardo D, Montalvillo E, Al-Hassi HO, Fernández-Salazar L, Garrote JA, Milani C, Ventura M, Arranz E, Knight SC, Margolles A, Sánchez B. Human colon-derived soluble factors modulate gut microbiota composition. Front Oncol 2015; 5:86. [PMID: 25918688 PMCID: PMC4394693 DOI: 10.3389/fonc.2015.00086] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 03/23/2015] [Indexed: 12/28/2022] Open
Abstract
The commensal microbiota modulates immunological and metabolic aspects of the intestinal mucosa contributing to development of human gut diseases including inflammatory bowel disease. The host/microbiota interaction often referred to as a crosstalk, mainly focuses on the effect of the microbiota on the host neglecting effects that the host could elicit on the commensals. Colonic microenvironments from three human healthy controls (obtained from the proximal and distal colon, both in resting conditions and after immune – IL-15- and microbiota – LPS-in vitro challenges) were used to condition a stable fecal population. Subsequent 16S rRNA gene-based analyses were performed to study the effect induced by the host on the microbiota composition and function. Non-supervised principal component analysis (PCA) showed that all microbiotas, which had been conditioned with colonic microenvironments clustered together in terms of relative microbial composition, suggesting that soluble factors were modulating a stable fecal population independently from the treatment or the origin. Our findings confirmed that the host intestinal microenvironment has the capacity to modulate the gut microbiota composition via yet unidentified soluble factors. These findings indicate that an appropriate understanding of the factors of the host mucosal microenvironment affecting microbiota composition and function could improve therapeutic manipulation of the microbiota composition.
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Affiliation(s)
- Arancha Hevia
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias - Consejo Superior de Investigaciones Científicas (IPLA-CSIC) , Villaviciosa , Spain
| | - David Bernardo
- Antigen Presentation Research Group, Imperial College London , Harrow , UK ; Gastroenterology Unit, Hospital Universitario de La Princesa and Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD) , Madrid , Spain
| | - Enrique Montalvillo
- Mucosal Immunology Laboratory, Instituto de Biología y Genética Molecular (IBGM), University of Valladolid-CSIC , Valladolid , Spain
| | - Hafid O Al-Hassi
- Antigen Presentation Research Group, Imperial College London , Harrow , UK
| | - Luis Fernández-Salazar
- Gastroenterology Service, Hospital Clinico Universitario de Valladolid , Valladolid , Spain
| | - Jose A Garrote
- Mucosal Immunology Laboratory, Instituto de Biología y Genética Molecular (IBGM), University of Valladolid-CSIC , Valladolid , Spain ; Clinical Laboratory Service, Department of Genetics and Molecular Biology, Hospital Universitario Rio Hortega , Valladolid , Spain
| | - Christian Milani
- Laboratory of Probiogenomics, Department of Life Sciences, University of Parma , Parma , Italy
| | - Marco Ventura
- Laboratory of Probiogenomics, Department of Life Sciences, University of Parma , Parma , Italy
| | - Eduardo Arranz
- Mucosal Immunology Laboratory, Instituto de Biología y Genética Molecular (IBGM), University of Valladolid-CSIC , Valladolid , Spain
| | - Stella C Knight
- Antigen Presentation Research Group, Imperial College London , Harrow , UK
| | - Abelardo Margolles
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias - Consejo Superior de Investigaciones Científicas (IPLA-CSIC) , Villaviciosa , Spain
| | - Borja Sánchez
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Food Science and Technology Faculty, University of Vigo , Ourense , Spain
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Alpaerts K, Buckinx R, Adriaensen D, Van Nassauw L, Timmermans JP. Identification and Putative Roles of Distinct Subtypes of Intestinal Dendritic Cells in Neuroimmune Communication: What can be Learned from Other Organ Systems? Anat Rec (Hoboken) 2015; 298:903-16. [DOI: 10.1002/ar.23106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 09/13/2014] [Accepted: 11/08/2014] [Indexed: 12/13/2022]
Affiliation(s)
- Katrien Alpaerts
- Laboratory of Cell biology and Histology; Department of Veterinary Sciences; University of Antwerp; Antwerp Belgium
| | - Roeland Buckinx
- Laboratory of Cell biology and Histology; Department of Veterinary Sciences; University of Antwerp; Antwerp Belgium
| | - Dirk Adriaensen
- Laboratory of Cell biology and Histology; Department of Veterinary Sciences; University of Antwerp; Antwerp Belgium
| | - Luc Van Nassauw
- Laboratory of Human Anatomy and Embryology; Faculty of Medicine and Health Sciences; University of Antwerp; Antwerp Belgium
| | - Jean-Pierre Timmermans
- Laboratory of Cell biology and Histology; Department of Veterinary Sciences; University of Antwerp; Antwerp Belgium
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Abstract
BACKGROUND Tight junction proteins (TJPs) and dendritic cells (DC) are critical in the pathogenesis of inflammatory bowel diseases. The ileal pouch formed by restorative proctocolectomy provides a unique human model for studying the pathogenesis of inflammatory bowel diseases. Data implicate the microbiota in the pathogenesis of pouchitis, while the role of innate immune factors remains unclear. We performed longitudinal and cross-sectional studies of patients after restorative proctocolectomy and assessed TJP and DC characteristics in the ileal pouch. METHODS Mucosal biopsies were taken from the ileal pouch of patients with ulcerative colitis (UC) and familial adenomatous polyposis (n = 8). Of patients with UC, one group (n = 5) was followed longitudinally over the first year after ileostomy closure, another group had pouchitis (n = 15), and another group no inflammation (n = 18). Dendritic cell phenotype and epithelial cell TJP expression were assessed using flow cytometric analysis. RESULTS Increased epithelial expression of the "pore-forming" TJP claudin 2, and DC expression of gut-homing markers CCR 9 and integrin β7, occurred early after ileostomy closure. In patients with UC with pouchitis, epithelial expression of ZO-1 and claudin 1 were reduced, DC were activated with increased CD40, and Toll-like receptor 4 expression increased. In pouchitis, DC expressing CCR 9 were decreased, whereas DC expressing β7 increased. CONCLUSIONS Abnormalities were found in TJP expression in the pouch of patients with UC, in particular, increased expression of the pore-forming claudin 2 as an early event in the development of pouch inflammation and an aberrant DC phenotype was characterized in the ileal pouch of patients with UC.
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Tian G, Liang JN, Wang ZY, Zhou D. Emerging role of leptin in rheumatoid arthritis. Clin Exp Immunol 2014; 177:557-70. [PMID: 24802245 DOI: 10.1111/cei.12372] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2014] [Indexed: 12/31/2022] Open
Abstract
Numerous studies have suggested the importance of leptin against autoimmune diseases such as systemic lupus erythematosus (SLE), multiple sclerosis (MS) and psoriasis. To summarize our current understanding of the role of leptin in inflammatory responses and rheumatoid arthritis (RA), a systematic review was conducted to assess the discrepancy of leptin in RA and its effect on immunity according to different studies. Recently, emerging data have indicated that leptin is involved in the pathological function of RA, which is common in autoimmune disorders. This review discusses the possible consequences of leptin levels in RA. Blocking the key signal pathways of leptin and inhibiting the leptin activity-like leptin antagonist may be a promising way for potential therapeutic treatment of RA at risk of detrimental effects. However, leptin was increased in patients with RA and may also regulate joint damage. Thus, more understanding of the mechanism of leptin in RA would be advantageous in the future.
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Affiliation(s)
- G Tian
- School of Health Management, Anhui Medical University, Hefei, Anhui, China
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Al‐Hassi HO, Mann ER, Sanchez B, English NR, Peake ST, Landy J, Man R, Urdaci M, Hart AL, Fernandez‐Salazar L, Lee GH, Garrote JA, Arranz E, Margolles A, Stagg AJ, Knight SC, Bernardo D. Altered human gut dendritic cell properties in ulcerative colitis are reversed by
Lactobacillus plantarum
extracellular encrypted peptide STp. Mol Nutr Food Res 2013; 58:1132-43. [PMID: 24347371 DOI: 10.1002/mnfr.201300596] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Revised: 10/09/2013] [Accepted: 10/18/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Hafid O. Al‐Hassi
- Antigen Presentation Research Group Imperial College London Northwick Park and St. Mark's Campus Harrow UK
| | - Elizabeth R. Mann
- Antigen Presentation Research Group Imperial College London Northwick Park and St. Mark's Campus Harrow UK
| | - Borja Sanchez
- Nutrition and Bromatology Group Department of Analytical and Food Chemistry Food Science and Technology Faculty University of Vigo Ourense Campus Ourense Spain
| | - Nicholas R. English
- Antigen Presentation Research Group Imperial College London Northwick Park and St. Mark's Campus Harrow UK
| | - Simon T.C. 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
| | - Jonathan 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
| | - Ripple Man
- St. Mark's Hospital North West London Hospitals NHS Trust Harrow UK
| | - Maria Urdaci
- Laboratoire de Microbiologie et Biochimie Appliquee Ecole Nationale Superieure des Sciences Agronomiques de Bordeaux Gradignan France
| | - Ailsa L. Hart
- 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
- St. Mark's Hospital North West London Hospitals NHS Trust Harrow UK
| | - Jose A. Garrote
- Department of Genetics and Molecular Biology Clinical Laboratory Service Hospital Universitario Rio Hortega Valladolid Spain
| | - Eduardo Arranz
- Department of Paediatrics and Immunology Mucosal Immunology Service Universidad de Valladolid IBGM‐CSIC Valladolid Spain
| | - Abelardo Margolles
- Departmento de Microbiologia y Bioquimica de Productos Lacteos Instituto de Productos Lacteos de Asturias Consejo Superior de Investigaciones Cientificas Villaviciosa Spain
| | - Andrew J. Stagg
- Centre for Immunology and Infectious Disease Barts and the London School of Medicine and Dentistry Blizard Institute of Cell and Molecular Science Queen Mary University of London UK
| | - Stella C. Knight
- Antigen Presentation Research Group Imperial College London Northwick Park and St. Mark's Campus Harrow UK
| | - David Bernardo
- Antigen Presentation Research Group Imperial College London Northwick Park and St. Mark's Campus Harrow UK
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den Hartog G, van Altena C, Savelkoul HFJ, van Neerven RJJ. The mucosal factors retinoic acid and TGF-β1 induce phenotypically and functionally distinct dendritic cell types. Int Arch Allergy Immunol 2013; 162:225-36. [PMID: 24022014 DOI: 10.1159/000353243] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2012] [Accepted: 05/22/2013] [Indexed: 12/23/2022] Open
Abstract
Non-inflammatory dendritic cell (DC) subsets play an essential role in preventing massive inflammation in mucosal tissues. We investigated whether mucosa-related factors, namely retinoic acid (RA) and transforming growth factor-β (TGF-β1), can induce such DC types. DCs were differentiated from monocytes in the absence or presence TGF-β1 and RA. The phenotype as well as responsiveness to bacterial ligands was studied in detail. Compared to monocyte-derived DCs (moDCs), the expression of co-stimulatory molecule CD86 and DC maturation marker CD83 were strongly reduced by RA and TGF-β1. In addition, both RA- and TGF-β1-induced DCs showed strongly decreased responsiveness to stimulation with the bacterial ligands lipopolysaccharide and peptidoglycan, and produced significantly lower levels of the pro-inflammatory cytokines IL-12 and TNF-α compared to moDCs, whilst IL-10 production was not significantly reduced. DCs differentiated under the influence of RA uniquely expressed markers related to intestinal homing (CD103 and integrin β7). In addition, CCR7, which mediates homing to lymph nodes, was expressed by DCs differentiated in the presence of RA, and also to a lesser extent by the other DC types. Furthermore, whereas moDCs and TGF-β1-derived moDCs expressed high levels of CD32, RA-derived DCs lacked CD32 expression but expressed high levels of CD64, suggesting that RA-DCs may primarily respond to soluble proteins and moDCs, and TGF-β DCs to immune complexes. The data presented here support the hypothesis that the mucosal factors TGF-β1 and RA, which can also be provided through dietary intake of dairy products, result in functionally and phenotypically distinct DC types with non-inflammatory properties.
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Affiliation(s)
- Gerco den Hartog
- Cell Biology and Immunology Group, Wageningen University, Wageningen, The Netherlands
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