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rheumatoid arthritis, regulatory t cell

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https://www.readbyqxmd.com/read/29123529/t-cell-mediated-chronic-inflammatory-diseases-are-candidates-for-therapeutic-tolerance-induction-with-heat-shock-proteins
#1
REVIEW
Ariana Barbera Betancourt, Qingkang Lyu, Femke Broere, Alice Sijts, Victor P M G Rutten, Willem van Eden
Failing immunological tolerance for critical self-antigens is the problem underlying most chronic inflammatory diseases of humans. Despite the success of novel immunosuppressive biological drugs, the so-called biologics, in the treatment of diseases such rheumatoid arthritis (RA) and type 1 diabetes, none of these approaches does lead to a permanent state of medicine free disease remission. Therefore, there is a need for therapies that restore physiological mechanisms of self-tolerance. Heat shock proteins (HSPs) have shown disease suppressive activities in many models of experimental autoimmune diseases through the induction of regulatory T cells (Tregs)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29110355/long-non-coding-rnas-in-rheumatoid-arthritis
#2
Zheng Li, Xingye Li, Chao Jiang, Wenwei Qian, Gary Tse, Matthew T V Chan, William K K Wu
Rheumatoid arthritis, a disabling autoimmune disease, is associated with altered gene expression in circulating immune cells and synovial tissues. Accumulating evidence has suggested that long non-coding RNAs (lncRNAs), which modulate gene expression through multiple mechanisms, are important molecules involved in immune and inflammatory pathways. Importantly, many studies have reported that lncRNAs can be utilized as biomarkers for disease diagnosis and prognostication. Recently, dysregulation of lncRNAs in rheumatoid arthritis and other autoimmune diseases has been revealed...
November 7, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/29108826/physical-activity-and-autoimmune-diseases-get-moving-and-manage-the-disease
#3
REVIEW
Kassem Sharif, Abdulla Watad, Nicola Luigi Bragazzi, Micheal Lichtbroun, Howard Amital, Yehuda Shoenfeld
Physical activity, by definition, is any skeletal muscle body movement that results in energy expenditure. In the last few decades, a plethora of scientific evidences have accumulated and confirmed the beneficial role of physical activity as a modifiable risk factor for a wide variety of chronic diseases including cardiovascular diseases (CVDs), diabetes mellitus and cancer, among others. Autoimmune diseases are a heterogeneous group of chronic diseases, which occur secondary to loss of self-antigen tolerance...
November 3, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29075262/clinical-tolerogenic-dendritic-cells-exploring-therapeutic-impact-on-human-autoimmune-disease
#4
REVIEW
Brett Eugene Phillips, Yesica Garciafigueroa, Massimo Trucco, Nick Giannoukakis
Tolerogenic dendritic cell (tDC)-based clinical trials for the treatment of autoimmune diseases are now a reality. Clinical trials are currently exploring the effectiveness of tDC to treat autoimmune diseases of type 1 diabetes mellitus, rheumatoid arthritis, multiple sclerosis (MS), and Crohn's disease. This review will address tDC employed in current clinical trials, focusing on cell characteristics, mechanisms of action, and clinical findings. To date, the publicly reported human trials using tDC indicate that regulatory lymphocytes (largely Foxp3+ T-regulatory cell and, in one trial, B-regulatory cells) are, for the most part, increased in frequency in the circulation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29074035/the-il-12-cytokine-family-in-cardiovascular-diseases
#5
T van der Heijden, I Bot, J Kuiper
Cytokines of the Interleukin (IL)-12 family, consisting of IL-12, IL-23, IL-27 and IL-35, are important regulators in (chronic) inflammatory disorders such as rheumatoid arthritis and multiple sclerosis, but also in cardiovascular diseases. Cytokines of the IL-12 family consist of two subunits and are known for their regulatory functions in the immunologic response, more specifically in the regulation and differentiation of T-helper (Th) cells such as Th1 and Th17 cells. Binding of these cytokines to its specific heterodimeric receptor results in the activation of the JAK-STAT signaling...
October 23, 2017: Cytokine
https://www.readbyqxmd.com/read/29062314/harnessing-apoptotic-cell-clearance-to-treat-autoimmune-arthritis
#6
REVIEW
Philippe Saas, Francis Bonnefoy, Eric Toussirot, Sylvain Perruche
Early-stage apoptotic cells possess immunomodulatory properties. Proper apoptotic cell clearance during homeostasis has been shown to limit subsequent immune responses. Based on these observations, early-stage apoptotic cell infusion has been used to prevent unwanted inflammatory responses in different experimental models of autoimmune diseases or transplantation. Moreover, this approach has been shown to be feasible without any toxicity in patients undergoing allogeneic hematopoietic cell transplantation to prevent graft-versus-host disease...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29051105/nicotine-and-autoimmunity-the-lotus-flower-in-tobacco
#7
REVIEW
João Pedro Gomes, Abdulla Watad, Yehuda Shoenfeld
Nicotine, the major component of cigarettes, has demonstrated conflicting impact on the immune system: some authors suggest that increases pro-inflammatory cytokines and provokes cellular apoptosis of neutrophils, releasing intracellular components that act as auto-antigens; others claimed that nicotine has a protective and anti-inflammatory effects, especially by binding to α7 subunit of nicotinic acetylcholine receptors. The cholinergic pathway contributes to an anti-inflammatory environment characterized by increasing T regulatory cells response, down-regulating of pro-inflammatory cytokines and a pro-inflammatory cells apoptosis...
October 16, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29017854/pegylated-trail-ameliorates-experimental-inflammatory-arthritis-by-regulation-of-th17-cells-and-regulatory-t-cells
#8
Jong-Sung Park, Yumin Oh, Ogyi Park, Catherine A Foss, Sung Mook Lim, Dong-Gyu Jo, Dong Hee Na, Martin G Pomper, Kang Choon Lee, Seulki Lee
TNF-related apoptosis-inducing ligand (TRAIL) is a death ligand that can induce apoptosis in cells expressing its cognate death receptors (DRs). Previously, we demonstrated the therapeutic potential of recombinant human TRAIL in experimental rheumatoid arthritis (RA) models. However, the mechanisms of how DR-mediated apoptosis elicits these actions is not known. Here, we show that systemically administering a potent, long-acting PEGylated TRAIL (TRAILPEG) is profoundly anti-rheumatic against two complementary experimental RA mouse models, collagen-induced arthritis (CIA) and collagen antibody-induced arthritis (CAIA), via targeting IL-17 secreting Th17 cells and regulatory T cells (Treg)...
October 7, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28963072/prostaglandin-e2-restrains-human-treg-cell-differentiation-via-e-prostanoid-receptor-2-protein-kinase-a-signaling
#9
Hui Li, Hai-Ying Chen, Wen-Xuan Liu, Xian-Xian Jia, Jing-Ge Zhang, Chun-Ling Ma, Xiao-Jing Zhang, Feng Yu, Bin Cong
Regulatory T cells (Treg cells) belong to a class of immunosuppressive cells that control the pathological changes of autoimmunity and inflammation. Prostaglandin E2 (PGE2) is a potent lipid mediator of immune inflammation including rheumatoid arthritis (RA) that exerts its effects via four subtypes of G-protein-coupled receptors (EP1-4). The ability of PGE2 to regulate human Treg differentiation has not yet been reported. In the current study, we investigated the effects of PGE2 on the differentiation of naïve T cells from healthy and RA patients into Treg cells and the intracellular signaling involved in this process in vitro...
September 28, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28928392/mucosa-associated-lymphoid-tissue-lymphoma-translocation-1-as-a-novel-therapeutic-target-for-rheumatoid-arthritis
#10
Chang Hoon Lee, Su Jeong Bae, Miok Kim
Emerging evidence suggests that mucosa-associated lymphoid tissue lymphoma translocation 1 (MALT1) is a key regulator of inflammatory diseases; however, the pathological role of MALT1 in rheumatoid arthritis (RA) is not well understood. Consequently, this protein has not been therapeutically targeted for the treatment of RA. MALT1 plays a role in the paracaspase pathway, has proteolytic activity and is involved in the regulation of inflammatory responses. In this study, we found that the MALT1-targeting inhibitory small molecule, MALT1 selective inhibitor 2-chloro-N-[4-[5-(3,4-dichlorophenyl)-3-(2-methoxyethoxy)-1H-1,2,4-triazol-1-yl]phenylacetamide (MI-2) strongly suppresses the differentiation of monocytes into osteoclasts in the absence or presence of the inflammatory cytokine tumour necrosis factor α...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28877244/the-role-of-dietary-sodium-intake-on-the-modulation-of-t-helper-17-cells-and-regulatory-t-cells-in-patients-with-rheumatoid-arthritis-and-systemic-lupus-erythematosus
#11
Rossana Scrivo, Laura Massaro, Cristiana Barbati, Marta Vomero, Fulvia Ceccarelli, Francesca Romana Spinelli, Valeria Riccieri, Alessandra Spagnoli, Cristiano Alessandri, Giovambattista Desideri, Fabrizio Conti, Guido Valesini
We aimed at investigating whether the frequency and function of T helper 17 (Th17) and regulatory T cells (Treg) are affected by a restriction of dietary sodium intake in patients with rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE). We enrolled RA and SLE patients not receiving drugs known to increase urinary sodium excretion. Patients underwent a dietary regimen starting with a restricted daily sodium intake followed by a normal-sodium daily intake. The timepoints were identified at baseline (T0), after 3 weeks of low-sodium dietary regimen (T3), after 2 weeks of normal-sodium dietary regimen (T5)...
2017: PloS One
https://www.readbyqxmd.com/read/28840350/regulatory-t-cells-and-il-10-as-modulators-of-chikungunya-disease-outcome-a-preliminary-study
#12
S P Kulkarni, M Ganu, P Jayawant, S Thanapati, A Ganu, A S Tripathy
Regulatory T (Treg) cells hold centre stage in regulating the immune responses in most viral infections. However, their involvement in chikungunya infection is unexplored. In the current study, the frequencies and functionality of peripheral Treg and T effector (Teff) cells were assessed during different phases of chikungunya by flow cytometry and in-vitro cytokine assays. Treg cells were also studied in rheumatoid arthritis (RA) patients, whose symptoms closely mimic chronic chikungunya arthritis patients...
December 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28814613/osteoimmunology-the-conceptual-framework-unifying-the-immune-and-skeletal-systems
#13
REVIEW
Kazuo Okamoto, Tomoki Nakashima, Masahiro Shinohara, Takako Negishi-Koga, Noriko Komatsu, Asuka Terashima, Shinichiro Sawa, Takeshi Nitta, Hiroshi Takayanagi
The immune and skeletal systems share a variety of molecules, including cytokines, chemokines, hormones, receptors, and transcription factors. Bone cells interact with immune cells under physiological and pathological conditions. Osteoimmunology was created as a new interdisciplinary field in large part to highlight the shared molecules and reciprocal interactions between the two systems in both heath and disease. Receptor activator of NF-κB ligand (RANKL) plays an essential role not only in the development of immune organs and bones, but also in autoimmune diseases affecting bone, thus effectively comprising the molecule that links the two systems...
October 1, 2017: Physiological Reviews
https://www.readbyqxmd.com/read/28810629/inhibition-of-microrna-34a-ameliorates-murine-collagen-induced-arthritis
#14
Qiujie Dang, Fan Yang, Hongwei Lei, Xin Liu, Minglu Yan, He Huang, Xuemei Fan, Yang Li
Rheumatoid arthritis (RA) is one of the most frequently occurring autoimmne diseases, with symptoms including synovium hyperplasia, immune disorder, cartilage damage and bone resorption. It has previously been demonstrated that microRNA-34a (miR-34a) may participate in cell apoptosis, immune activation and bone metabolism, therefore the present study investigated the effects of miR-34a on RA. Collagen-induced arthritic (CIA) mice were employed as a murine model of experimental arthritis, and it was demonstrated that the level of miR-34a in the spleens, lymph nodes and synovium was increased in the CIA mice compared with normal DBA/1j mice...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28804903/targeting-of-tolerogenic-dendritic-cells-towards-heat-shock-proteins-a-novel-therapeutic-strategy-for-autoimmune-diseases
#15
REVIEW
Manon A A Jansen, Rachel Spiering, Femke Broere, Jacob M van Laar, John D Isaacs, Willem van Eden, Catharien M U Hilkens
Tolerogenic dendritic cells (tolDCs) are a promising therapeutic tool to restore immune tolerance in autoimmune diseases. The rationale of using tolDCs is that they can specifically target the pathogenic T cell response, while leaving other, protective T cell responses intact. Several ways of generating therapeutic tolDCs have been described, but whether these tolDCs should be loaded with autoantigen(s), and if so, with which autoantigen(s), remains unclear. Autoimmune diseases, such as rheumatoid arthritis, are not commonly defined by a single, universal, autoantigen...
August 14, 2017: Immunology
https://www.readbyqxmd.com/read/28804691/combination-of-celecoxib-celebrex-%C3%A2-and-cd19-car-redirected-ctl-immunotherapy-for-the-treatment-of-b-cell-non-hodgkin-s-lymphomas
#16
REVIEW
Tam Nm Dinh, Alexandra S Onea, Ali R Jazirehi
The nonsteroidal anti-inflammatory drug (NSAID) Celecoxib (Celebrex(®)) received Food and Drug Administration (FDA) approval in 1998 for treatment of osteoarthritis and rheumatoid arthritis, and in recent years, its use has been extended to various types of malignancies, such as breast, colon, and urinary cancers. To maintain the survival of malignant B cells, non-Hodgkin's Lymphoma (NHL) is highly dependent on inflammatory microenvironment, and is inhibited by celecoxib. Celecoxib hinders tumor growth interacting with various apoptotic genes, such as cyclooxygenase-2 (Cox-2), B-cell lymphoma 2 (Bcl-2) family, phosphor-inositide-3 kinase/serine-threonine-specific protein kinase (PI3K/Akt), and inhibitors of apoptosis proteins (IAP) family...
2017: American Journal of Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28799796/immune-modulation-by-curcumin-the-role-of-interleukin-10
#17
Hamid Mollazadeh, Arrigo F G Cicero, Christopher N Blesso, Matteo Pirro, Muhammed Majeed, Amirhossein Sahebkar
Cytokines are small secreted proteins released by different types of cells with specific effects on cellular signaling and communication via binding to their receptors on the cell surface. IL-10 is known to be a pleiotropic and potent anti-inflammatory and immunosuppressive cytokine that is produced by both innate and adaptive immunity cells including dendritic cells, macrophages, mast cells, natural killer cells, eosinophils, neutrophils, B cells, CD8(+) T cells, and TH1, TH2, and TH17 and regulatory T cells...
August 11, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28765121/novel-therapies-for-immune-mediated-inflammatory-diseases-what-can-we-learn-from-their-use-in-rheumatoid-arthritis-spondyloarthritis-systemic-lupus-erythematosus-psoriasis-crohn-s-disease-and-ulcerative-colitis
#18
REVIEW
Kenneth F Baker, John D Isaacs
The past three decades have witnessed remarkable advances in our ability to target specific elements of the immune and inflammatory response, fuelled by advances in both biotechnology and disease knowledge. As well as providing superior treatments for immune-mediated inflammatory diseases (IMIDs), such therapies also offer unrivalled opportunities to study the underlying immunopathological basis of these conditions.In this review, we explore recent approaches to the treatment of IMIDs and the insights to pathobiology that they provide...
August 1, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28753982/th17-in-animal-models-of-rheumatoid-arthritis
#19
REVIEW
Motomu Hashimoto
IL-17-secreting helper CD4 T cells (Th17 cells) constitute a newly identified subset of helper CD4 T cells that play a key role in the development of rheumatoid arthritis (RA) in its animal models. Recently, several models of spontaneous RA, which elucidate the mechanism of RA onset, have been discovered. These animal models shed new light on the role of Th17 in the development of autoimmune arthritis. Th17 cells coordinate inflammation and promote joint destruction, acting on various cells, including neutrophils, macrophages, synovial fibroblasts, and osteoclasts...
July 21, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28714991/resolution-of-inflammation-by-interleukin-9-producing-type-2-innate-lymphoid-cells
#20
Simon Rauber, Markus Luber, Stefanie Weber, Lisa Maul, Alina Soare, Thomas Wohlfahrt, Neng-Yu Lin, Katharina Dietel, Aline Bozec, Martin Herrmann, Mark H Kaplan, Benno Weigmann, Mario M Zaiss, Ursula Fearon, Douglas J Veale, Juan D Cañete, Oliver Distler, Felice Rivellese, Costantino Pitzalis, Markus F Neurath, Andrew N J McKenzie, Stefan Wirtz, Georg Schett, Jörg H W Distler, Andreas Ramming
Inflammatory diseases such as arthritis are chronic conditions that fail to resolve spontaneously. While the cytokine and cellular pathways triggering arthritis are well defined, those responsible for the resolution of inflammation are incompletely characterized. Here we identified interleukin (IL)-9-producing type 2 innate lymphoid cells (ILC2s) as the mediators of a molecular and cellular pathway that orchestrates the resolution of chronic inflammation. In mice, the absence of IL-9 impaired ILC2 proliferation and activation of regulatory T (Treg) cells, and resulted in chronic arthritis with excessive cartilage destruction and bone loss...
August 2017: Nature Medicine
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