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Lijuan Wang, Yanchun Quan, Yongfang Yue, Xueyuan Heng, Fengyuan Che
Interleukin (IL)-37, a new IL-1 family member, has received increasing attention in recent years. In the past decade, it has been determined that IL-37 is expressed in various normal cells and tissues and is regulated by inflammatory stimuli and pro-cytokines via different signal transduction pathways. Recently, it has been found that IL-37 is expressed in a variety of cancers, chronic inflammatory and autoimmune disorders, and exerts anti-inflammatory effects. Moreover, a growing body of literature demonstrates that IL-37 plays a vital role in inhibiting both innate and adaptive immune responses as well as inflammatory reactions...
April 2018: Oncology Letters
Liuqing Wang, Yueying Wang, Liping Xia, Hui Shen, Jing Lu
OBJECTIVE: To detect the expression of IL-37 and its receptors IL-18Rα and IL-1R8 in CD4+ T cells and total lymphocytes in rheumatoid arthritis (RA) patients and the relationship between autoantibodies and disease activity. To investigate the mechanism of IL-37 and its receptors involved in the pathogenesis of RA. To evaluate the effects of different concentrations of rhIL-37 on peripheral blood mononuclear cells (PBMCs) in RA patients with TNF-α, and IL-6. METHODS: The expression of IL-37 and its receptor IL-18Rα and IL-1R8 in peripheral blood CD4+ T cells and total lymphocytes in RA patients and healthy controls were measured by flow cytometry...
February 28, 2018: Cytokine
Jing Liu, Jibin Lin, Shaolin He, Chun Wu, Boyuan Wang, Jie Liu, Yanping Duan, Tianxiao Liu, Shengshuai Shan, Keping Yang, Nianguo Dong, Qingwei Ji, Kai Huang, Dazhu Li
BACKGROUND/AIMS: Recently, studies have shown that interleukin-37 (IL-37) is involved in atherosclerosis-related diseases. However, the regulatory mechanisms of IL-37 in atherosclerosis remain unknown. This study aims to determine the role of IL-37 in atherosclerosis and to investigate the underlying mechanisms involved. METHODS: IL-37 expression in human atherosclerotic plaques was detected by immunohistochemical staining and real-time reverse transcription polymerase chain reaction (RT-PCR)...
February 7, 2018: Cellular Physiology and Biochemistry
B Zhao, S Zhang, W Chen, R Zhang, R Jiang, R Zhang, L Chen
BACKGROUND & OBJECTIVE: Interleukin 37 (IL-37) is an important regulator of the anti-inflammatory T-cell response. In this study, we investigated its expression and function in peripheral blood mononuclear cells (PBMCs) of patients with HLA-B27 associated acute anterior uveitis (AAU) and idiopathic AAU. METHODS: 15 patients with HLA-B27-associated AAU, 10 patients with idiopathic AAU and 22 controls were recruited to this study from August 2013 to December 2016...
February 7, 2018: Current Molecular Medicine
Ya-Chu Tsai, Tsen-Fang Tsai
Anti-interleukin (IL) therapies have emerged as a major treatment for patients with moderate-to-severe psoriasis. This article reviews the up-to-date results of pivotal clinical trials targeting the interleukins used for the treatment of psoriasis, including IL-1, IL-2, IL-6, IL-8, IL-10, IL-12, IL-17, IL-20, IL-22, IL-23, IL-36 and bispecific biologics IL-17A/tumor necrosis factor alpha (TNF-α). Cytokines involved in the circuits of psoriasis inflammation without ongoing clinical trials are also mentioned (IL-9, IL-13, IL-15, IL-16, IL-18, IL-19, IL-21, IL-24, IL-27, IL-33, IL-35, IL-37, and IL-38)...
November 2017: Therapeutic Advances in Musculoskeletal Disease
Xiao-Ying Zhang, Yu Zuo, Chun Li, Xin Tu, Hu-Ji Xu, Jian-Ping Guo, Zhan-Guo Li, Rong Mu
BACKGROUND: Interleukin (IL)-37, also called IL1F7, is a natural inhibitor of inflammatory and immune responses. It is involved in the pathogenesis of rheumatoid arthritis (RA). This study aimed to investigate the role of IL1F7 gene polymorphism in RA susceptibility in a large cohort of patients. METHODS: Five selected single-nucleotide polymorphisms in IL1F7 genes (rs2723186, rs3811046, rs4241122, rs4364030, and rs4392270) were genotyped by TaqMan Allelic Discrimination in Northern Chinese Han population...
January 20, 2018: Chinese Medical Journal
Jiaoyan Lv, Yingluo Xiong, Wenjing Li, Xinyi Cui, Xunjia Cheng, Qibin Leng, Rui He
BACKGROUND: IL-37 is emerging as an anti-inflammatory cytokine, particularly in innate inflammation. However, the role of IL-37 in Th2-mediated allergic lung inflammation remains uncertain. We sought to determine the role and the underlying mechanisms of IL-37 in the development of house dust mites (HDM)-induced murine asthma model. METHODS: We examined the effect of IL-37 administration during the sensitization or challenge phase on Th2-mediated allergic asthma induced by inhaled HDM...
January 10, 2018: Allergy
Yu-Hua Chen, Bi-Yun Zhou, Guo-Cai Wu, De-Quan Liao, Jing Li, Si-Si Liang, Xian-Jin Wu, Jun-Fa Xu, Yong-Hua Chen, Xiao-Qing Di, Qiong-Yan Lin
BACKGROUND: This study aims to investigate the effects of exogenous interleukin (IL)-37 on the biological characteristics of human lung adenocarcinoma A549 cells and the chemotaxis of regulatory T (Treg) cells. METHODS: After isolating the CD4+ CD25+ Treg cells from the peripheral blood, flow cytometry was used to detect the purity of the Treg cells. A549 cells were divided into blank (no transfection), empty plasmid (transfection with pIRES2-EGFP empty plasmid) or IL-37 group (transfection with pIRES2-EGFP-IL-37 plasmid)...
December 15, 2017: Cancer Biomarkers: Section A of Disease Markers
Alberto Mantovani, Isabella Barajon, Cecilia Garlanda
Inflammation is an important component of the tumor microenvironment. IL-1 is an inflammatory cytokine which plays a key role in carcinogenesis and tumor progression. IL-1 is subject to regulation by components of the IL-1 and IL-1 receptor (ILR) families. Negative regulators include a decoy receptor (IL-1R2), receptor antagonists (IL-1Ra), IL-1R8, and anti-inflammatory IL-37. IL-1 acts at different levels in tumor initiation and progression, including driving chronic non-resolving inflammation, tumor angiogenesis, activation of the IL-17 pathway, induction of myeloid-derived suppressor cells (MDSC) and macrophage recruitment, invasion and metastasis...
January 2018: Immunological Reviews
Martina Molgora, Domenico Supino, Alberto Mantovani, Cecilia Garlanda
Interleukin-1 receptor family members (ILRs) and Toll-Like Receptors (TLRs) are key players in immunity and inflammation and are tightly regulated at different levels. Most cell types, including cells of the innate and adaptive immune system express ILRs and TLRs. In addition, IL-1 family members are emerging as key players in the differentiation and function of innate and adaptive lymphoid cells. IL-1R2 and IL-1R8 (also known as TIR8 or SIGIRR) are members of the ILR family acting as negative regulators of the IL-1 system...
January 2018: Immunological Reviews
Gilles Kaplanski
Initially described as an interferon (IFN)γ-inducing factor, interleukin (IL)-18 is indeed involved in Th1 and NK cell activation, but also in Th2, IL-17-producing γδ T cells and macrophage activation. IL-18, a member of the IL-1 family, is similar to IL-1β for being processed by caspase 1 to an 18 kDa-biologically active mature form. IL-18 binds to its specific receptor (IL-18Rα, also known as IL-1R7) forming a low affinity ligand chain. This is followed by recruitment of the IL-18Rβ chain. IL-18 then uses the same signaling pathway as IL-1 to activate NF-kB and induce inflammatory mediators such as adhesion molecules, chemokines and Fas ligand...
January 2018: Immunological Reviews
Giulio Cavalli, Charles A Dinarello
IL-37 is a unique member of the IL-1 family of cytokines, which functions as a natural suppressor of inflammatory and immune responses. Immune and non-immune cells produce IL-37 precursor following pro-inflammatory stimuli. Following activating cleavage by caspase-1, mature IL-37 translocates to the nucleus, where it suppresses transcription of pro-inflammatory genes. Both precursor and mature IL-37 are also secreted in the extracellular space, where they bind IL-18Rα and recruit the IL-1R8 (formerly TIR8 or SIGIRR), which transduces anti-inflammatory signals by suppressing NF-kB and MAPK and by activating Mer-PTEN-DOK pathways...
January 2018: Immunological Reviews
Atif Zafar, Asad Ikram, Dinesh V Jillella, Duraisamy Kempuraj, Mohammad Moshahid Khan, Saif Bushnaq, Harold Adam, Santiago Ortega-Gutierrez, Syed A Quadri, Mudassir Farooqui, Asgar Zaheer, Enrique C Leira
Interleukin (IL)-37 is a new member of the IL-1 cytokine family with a defined role as a negative feedback inhibitor of proinflammatory responses. IL-37 has yet to be evaluated in non-immune-mediated neurological diseases, such as ischemic or hemorrhagic strokes. This study aimed to measure urine and serum IL-37 levels in patients with ischemic stroke. Twelve patients consented for our study. Two sets of serum and urine samples were obtained and analyzed, one upon admission to the hospital and the second the next morning...
October 11, 2017: Curēus
Julia Lachner, Veronika Mlitz, Erwin Tschachler, Leopold Eckhart
The homeostasis of the epidermis depends on keratinocyte differentiation and cornification, a mode of programmed cell death that does not elicit inflammation. Here, we report that cornification is associated with the expression of specific genes that control multiple steps of pyroptosis, another form of cell death that involves the processing and release of interleukin-1 family (IL1F) cytokines. Expression levels of pro-inflammatory IL1A and IL1B and of the pyroptotic pore-forming gasdermin (GSDM) D were downregulated during terminal differentiation of human keratinocytes in vitro...
December 12, 2017: Scientific Reports
A E Alagbe, A S Justo Junior, L P Ruas, W V Tonassé, R M Santana, T H C Batista, I F Domingos, A S Araujo, M A C Bezerra, M N N Santos, M H S L Blotta
BACKGROUND AND OBJECTIVE: Inflammation is implicated in the pathogenesis of most complications seen in sickle cell anemia (SCA) patients. We aimed to evaluate serum levels of two newly discovered anti-inflammatory cytokines (IL-27 and IL-37), and pro-inflammatory cytokines among Brazilian SCA patients that are not on hydroxyurea therapy (HbSS), compared with hydroxyurea-treated patients (HbSSHU) and healthy controls (HbAA). Furthermore, we demonstrated the effect of IL-27, IL-37, and heme on in vitro secretions of IL-8 in human neutrophils and monocytes...
December 5, 2017: Cytokine
Vivi A Ding, Ziwen Zhu, Timothy A Steele, Mark R Wakefield, Huaping Xiao, Dean Balabanov, Yujiang Fang
Prostate cancer (PCa) is the most common non-cutaneous cancer in men in the USA. Radiation therapy (RT) is widely considered the standard treatment for PCa. IL-37 is an IL-1 family member, and it has been extensively studied in immunity. However, no studies have been done regarding its potential as a radiosensitizer. This study is designed to investigate the direct effect of IL-37 on growth of DU145 and PC-3, two widely studied PCa cell lines, and to investigate whether IL-37 could be used as a radiosensitizer for PCa...
December 5, 2017: Medical Oncology
Susanne Pfeiler, Holger Winkels, Malte Kelm, Norbert Gerdes
The interleukin (IL)-1 family is a group of cytokines crucially involved in regulating immune responses to infectious challenges and sterile insults. The family consists of the eponymous pair IL-1α and IL-1β, IL-18, IL-33, IL-37, IL-38, and several isoforms of IL-36. In addition, two endogenous inhibitors of functional receptor binding, IL-1R antagonist (IL-1Ra) and IL-36Ra complete the family. To gain biological activity IL-1β and IL-18 require processing by the protease caspase-1 which is associated with the multi-protein complex inflammasome...
November 30, 2017: Cytokine
Felix Grabherr, Christoph Grander, Timon E Adolph, Verena Wieser, Lisa Mayr, Barbara Enrich, Sophie Macheiner, Moris Sangineto, Andreas Reiter, Andre Viveiros, Heinz Zoller, Philip Bufler, Alexander R Moschen, Charles A Dinarello, Herbert Tilg
BACKGROUND & AIMS: Chronic alcohol consumption and alcoholic liver disease (ALD) afflicts individuals with substantial morbidity and mortality with limited treatment options available. Hepatic inflammation, triggered by activated Kupffer cells, is a driving force in alcoholic liver disease. Interleukin 37 (IL-37) exerts anti-inflammatory effects in hepatic diseases, however, the impact of Interleukin 37 on alcoholic liver disease is unknown. In this study, we addressed the role of Interleukin 37 in alcoholic liver disease...
November 29, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
Do Hyun Kim, Si Won Kim, Soo Whan Kim, Jun-Myung Kang
The purpose of this study was to investigate the effects of interleukin-37 (IL-37) on a Dermatophagoides farinae (Der f)-induced murine model of allergic rhinitis (AR). BALB/c mice, except the control groups, were sensitized intraperitoneally and challenged intranasally with Der f (Der f group). The IL-37 and IL-37+anti-CD25 groups were administered IL-37 intranasally. The IL-37+anti-CD25 groups were administered anti-CD25 monoclonal antibody intraperitoneally before challenge. Allergic symptoms and the average eosinophil number were counted...
October 2017: Iranian Journal of Allergy, Asthma, and Immunology
Lina Zhang, Jie Zhang, Peng Gao
Interleukin (IL)-37 belongs to the IL-1 cytokine family. It binds to IL-18Rα and recruits the orphan decoy IL-1R8. Emerging evidence shows that IL-37 is a key player in the regulation of inflammation, cellular differentiation, and proliferation. Altered IL-37 expression has been demonstrated in many inflammatory disease conditions, including asthma. In rheumatoid arthritis, IL-37 is involved in the regulation of proliferation, production of inflammatory mediators, and activation of inflammatory cells. Furthermore, this cytokine acts as a negative regulator of inflammation in inflammatory bowel disease...
November 14, 2017: Respiratory Research
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