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Bei Li, Yi-Li Zhang, Shou-Yi Yu
Objective The CC chemokine family member eotaxin-1, also named chemokine C-C motif ligand 11 (CCL11), has been detected in knee osteoarthritis (OA) and could induce breakdown of cartilage matrix. This study was performed to investigate the plasma and synovial fluid eotaxin-1 levels with the disease progression in elderly Han Chinese with primary knee OA. Design A total of 143 elderly primary knee OA patients and 135 healthy controls were enrolled in the study. The Western Ontario and McMaster Universities Arthritis Index (WOMAC) was performed to evaluate the clinical severity...
March 1, 2018: Cartilage
Pallavi Gurung, Suhrid Banskota, Nikita Katila, Jaya Gautam, Tara Man Kadayat, Dong-Young Choi, Eung Seok Lee, Tae Cheon Jeong, Jung-Ae Kim
The pathogenesis of inflammatory bowel disease (IBD) is associated with production of immense pro-inflammatory cytokines including TNF-α. Once generated, TNF-α stimulates production of various pro-inflammatory cytokines and disrupts mucosal barrier by inducing inflamed mucosal epithelial cell death. In the present study, we investigated inhibitory effects of TI-1-162, a hydroxyindenone derivative, against TNF-α-induced and TNBS-induced colon inflammation. TI-1-162 showed inhibitory effect on the TNF-α-induced adhesion of U937 monocytic cells to HT-29 colonic epithelial cells (IC50 = 0...
March 16, 2018: European Journal of Pharmacology
Tünde Szatmári, Eszter Persa, Enikő Kis, Anett Benedek, Rita Hargitai, Géza Sáfrány, Katalin Lumniczky
PURPOSE: Radiation-induced bystander effects (RIBE) imply the involvement of complex signaling mechanisms, which can be mediated by extracellular vesicles (EVs). Using an in vivo model, we investigated EV-transmitted RIBE in blood plasma and radiation effects on plasma EV miRNA profiles. MATERIALS AND METHODS: C57Bl/6 mice were total-body irradiated with 0.1 and 2Gy, bone marrow-derived EVs were isolated, and injected systemically into naïve, "bystander" animals...
March 13, 2018: International Journal of Radiation Biology
Alessio Polacchini, Damiano Girardi, Alessandra Falco, Nunzia Zanotta, Manola Comar, Nicola Alberto De Carlo, Enrico Tongiorgi
Chronic psychosocial stress at workplace is an important factor in the development of physical and mental illness. Objective biological measures of chronic stress are still lacking, but inflammatory response and growth factors are increasingly considered as potential stress biomarkers. Therefore, we investigated the relationship between psychophysical strain and serum levels of 48 chemokines, cytokines and growth factors measured using a multiplex immunoassay, and serum brain-derived neurotrophic factor (BDNF) measured by ELISA...
February 2018: Neurobiology of Stress
Xia Shao, Boting Wu, Luya Cheng, Feng Li, Yanxia Zhan, Chanjuan Liu, Lili Ji, Zhihui Min, Yang Ke, Lihua Sun, Hao Chen, Yunfeng Cheng
BACKGROUND: Although impaired myeloid-derived suppressor cells (MDSCs) recently have been studied in immune thrombocytopenia (ITP), another myeloid-derived cell population signified as M2 macrophages has not been investigated properly in ITP patients. In the present study, we intended to determine the features of circulating M2-like macrophages, to examine its relationship with MDSCs, and to explore their prognostic values in ITP. METHODS: Peripheral blood mononuclear cells from healthy controls and primary ITP patients were isolated to test the circulating M2-like macrophages and MDSCs...
March 2, 2018: Journal of Translational Medicine
Yanping Tong, Tao Yang, Jingwen Wang, Tianyou Zhao, Lei Wang, Yuezhi Kang, Cuicui Cheng, Yongping Fan
Background: A prominent pathological feature of neuromyelitis optica spectrum disorders (NMOSD) is markedly greater eosinophilic infiltration than that seen in other demyelinating diseases, like multiple sclerosis (MS). Eosinophils express the chemokine receptor CCR3, which is activated by eotaxins (CCL11/eotaxin-1, CCL24/eotaxin-2, CCL26/eotaxin-3) and CCL13 [monocyte chemoattractant protein (MCP)-4]. Moreover, CCL13 is part of the chemokine set that activates CCR2. The present study aimed to evaluate plasma levels of eotaxins (CCL11, CCL24, and CCL26) and MCPs (CCL13, CCL2, CCL8, and CCL7) in patients with NMOSD during remission...
2018: Frontiers in Neurology
Won Sub Kang, Young Jong Kim, Hae Jeong Park, Su Kang Kim, Jong-Woo Paik, Jong Woo Kim
BACKGROUND: Immunological alterations and dysregulation of the inflammatory response have been suggested to play a crucial role in schizophrenia pathophysiology. Growing evidence supports the involvement of chemokines in brain development, thus many chemokines have been studied in relation with schizophrenia. The C-C motif chemokine ligand 11 (CCL11) has been shown to be related with synaptic plasticity and neurogenesis. Moreover, altered levels of CCL11 have been observed in schizophrenia patients...
February 22, 2018: Gene
Naoki Takemura, Yosuke Kurashima, Yuki Mori, Kazuki Okada, Takayuki Ogino, Hideki Osawa, Hirosih Matsuno, Lamichhane Aayam, Satoshi Kaneto, Eun Jeong Park, Shintaro Sato, Kouta Matsunaga, Yusuke Tamura, Yasuo Ouchi, Yutaro Kumagai, Daichi Kobayashi, Yutaka Suzuki, Yoshichika Yoshioka, Junichi Nishimura, Masaki Mori, Ken J Ishii, Mark E Rothenberg, Hiroshi Kiyono, Shizuo Akira, Satoshi Uematsu
Radiation-induced intestinal fibrosis (RIF) is a serious complication after abdominal radiotherapy for pelvic tumor or peritoneal metastasis. Herein, we show that RIF is mediated by eosinophil interactions with α-smooth muscle actin-positive (α-SMA+ ) stromal cells. Abdominal irradiation caused RIF especially in the submucosa (SM) of the small intestine, which was associated with the excessive accumulation of eosinophils in both human and mouse. Eosinophil-deficient mice showed markedly ameliorated RIF, suggesting the importance of eosinophils...
February 21, 2018: Science Translational Medicine
Meng-Bo Hu, Hua Xu, Wen-Hui Zhu, Pei-De Bai, Ji-Meng Hu, Tian Yang, Hao-Wen Jiang, Qiang Ding
High-fat diet (HFD) -induced obesity is associated with more aggressive and lethal prostate cancer (PCa) in males, although the exact underlying mechanisms remain unclear. In the present study, transgenic adenocarcinoma of mouse prostate (TRAMP) models fed on an HFD (40% fat) or a control diet (CD; 16% fat) were generated, and cancer differentiation, local invasion and metastasis were compared at 20, 24 and 28 weeks. Mouse sera from each group were collected, and adipokines and cytokines were measured using multiplex immunoassays...
February 2018: Oncology Letters
Yong-Dong Lin, Xing-Liang Fan, Hong Zhang, Shu-Bin Fang, Cheng-Lin Li, Meng-Xia Deng, Zi-Li Qin, Ya-Qi Peng, Hong-Yu Zhang, Qing-Ling Fu
BACKGROUND: Asthma is affecting more than 300 million people worldwide, which represents the most common chronic disease among children. We previously found that mesenchymal stem cells (MSCs) derived from induced pluripotent stem cells (iPSCs) modulated the immune response on Th2-mediated asthma in vivo and in vitro. This study further evaluated the immunomodulatory effects of MSCs from human embryonic stem cells (hESCs) on asthma. METHODS: Multipotent hESC-MSCs were obtained using a feeder-free method...
January 31, 2018: Molecular Immunology
Tsuguhisa Nakayama, Naoko Okada, Mamoru Yoshikawa, Daiya Asaka, Akihito Kuboki, Hiromi Kojima, Yasuhiro Tanaka, Shin-Ichi Haruna
Reverse transcription-quantitative polymerase chain reaction is a valuable and reliable method for gene quantification. Target gene expression is usually quantified by normalization using reference genes (RGs), and accurate normalization is critical for producing reliable data. However, stable RGs in nasal polyps and sinonasal tissues from patients with chronic rhinosinusitis (CRS) have not been well investigated. Here, we used a two-stage study design to identify stable RGs. We assessed the stability of 15 commonly used candidate RGs using five programs-geNorm, NormFinder, BestKeeper, ΔCT, and RefFinder...
January 25, 2018: Scientific Reports
Ligia Fernandes Abdalla, João Hugo Abdalla Santos, Renata Teodora Jales Barreto, Erick Martins E Souza, Fabrício Fonseca D'Assunção, Márcio Aurélio Borges, Valdinete Alves Nascimento, George Allan Villarouco da Silva, Victor Costa de Souza, Rajendranath Ramasawmy, Ana Carolina Campi-Azevedo, Jordana Graziela Coelho-Dos-Reis, Lis Ribeiro do Vale Antonelli, Andréa Teixeira-Carvalho, Olindo Assis Martins-Filho, Felipe Gomes Naveca
BACKGROUND: Zika virus is an emerging arbovirus of the family Flaviviridae and genus Flavivirus that until 2007 was restricted to a few cases of mild illness in Africa and Asia. CASE PRESENTATION: We report a case of atrial fibrillation disclosed during an acute Zika virus infection in a 49-year-old man. Different biological samples were analyzed for the molecular diagnosis of Zika by real-time PCR, however only the saliva specimen was positive. The patient's wife tested positive in the serum sample, although she was an asymptomatic carrier...
January 25, 2018: Virology Journal
Irma Mahmutovic Persson, Mandy Menzel, Sangeetha Ramu, Samuel Cerps, Hamid Akbarshahi, Lena Uller
BACKGROUND: Viral-induced asthma exacerbations, which exhibit both Th1-type neutrophilia and Th2-type inflammation, associate with secretion of Interleukin (IL)-1β. IL-1β induces neutrophilic inflammation. It may also increase Th2-type cytokine expression. We hypothesised that IL-1β is causally involved in both Th1 and Th2 features of asthma exacerbations. This hypothesis is tested in our mouse model of viral stimulus-induced asthma exacerbation. METHOD: Wild-type (WT) and IL-1β deficient (IL-1β-/-) mice received house dust mite (HDM) or saline intranasally during three weeks followed by intranasal dsRNA (PolyI:C molecule known for its rhinovirus infection mimic) for three consecutive days to provoke exacerbation...
January 24, 2018: Respiratory Research
Martina Boström, Marie Kalm, Yohanna Eriksson, Cecilia Bull, Anders Ståhlberg, Thomas Björk-Eriksson, Nina Hellström Erkenstam, Klas Blomgren
PURPOSE: To unravel the role of the vasculature in radiation-induced brain tissue damage. MATERIALS AND METHODS: Postnatal day 14 mice received a single dose of 10 Gy cranial irradiation and were sacrificed 6 hours, 24 hours or 7 days post-irradiation. Endothelial cells were isolated from the hippocampus and cerebellum using fluorescence-activated cell sorting, followed by cell cycle analysis and gene expression profiling. RESULTS: Flow cytometric analysis revealed that irradiation increased the percentage of endothelial cells, relative to the whole cell population in both the hippocampus and the cerebellum...
January 23, 2018: International Journal of Radiation Biology
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
J J Nieto-Fontarigo, F J González-Barcala, M E San-José, M J Cruz, T Linares, M T Soto-Mera, L Valdés, M A García-González, L J Andrade-Bulos, P Arias, M Nogueira, F J Salgado
BACKGROUND AND OBJECTIVE: Asthma pathogenesis is dependent on the balance between regulatory and effector T cells, which display differential expression of CD25 and CD26. Therefore, alteration of circulating levels of sCD25 and sCD26 during allergic asthma could be conditioned by leukocyte phenotype changes. Objectives: To analyse CD25 and CD26 expression on T lymphocytes and their soluble derivatives (sCD25, sCD26) during stable phases of moderate-severe allergic asthma. METHODS: Cross-sectional study with two adult cohorts of allergic asthmatics...
January 3, 2018: Journal of Investigational Allergology & Clinical Immunology
Baosheng Ge, Jiqiang Li, Zhijin Wei, Tingting Sun, Yanzhuo Song, Naseer Ullah Khan
BACKGROUND: Chemokines and their cognate receptors play important role in the control of leukocyte chemotaxis, HIV entry and other inflammatory diseases. Developing an effcient method to investigate the functional expression of chemokines and its interactions with specific receptors will be helpful to asses the structural and functional characteristics as well as the design of new approach to therapeutic intervention. RESULTS: By making systematic optimization study of expression conditions, soluble and functional production of chemokine C-C motif ligand 8 (CCL8) in Escherichia coli (E...
December 28, 2017: BMC Immunology
Sigrun Ruth Hofmann, Fanny Böttger, Ursula Range, Christian Lück, Henner Morbach, Hermann Joseph Girschick, Meinolf Suttorp, Christian Michael Hedrich
Objectives: Chronic recurrent multifocal osteomyelitis (CRMO), the most severe form of chronic nonbacterial osteomyelitis (CNO), is an autoinflammatory bone disorder. In the absence of diagnostic criteria or biomarkers, CNO/CRMO remains a diagnosis of exclusion. The aim of this study was to identify biomarkers for diagnosing multifocal disease (CRMO). Study design: Sera from 71 pediatric CRMO patients, 11 patients with osteoarticular infections, 62 patients with juvenile idiopathic arthritis (JIA), 7 patients with para-infectious or reactive arthritis, and 43 patients with acute leukemia or lymphoma, as well as 59 healthy individuals were collected...
2017: Frontiers in Pediatrics
Julia Hoefer, Markus Luger, Christian Dal-Pont, Zoran Culig, Harald Schennach, Stefan Jochberger
Background: High blood levels of the chemokine eotaxin-1 (CCL11) have recently been associated with aging and dementia, as well as impaired memory and learning in humans. Importantly, eotaxin-1 was shown to pass the blood-brain-barrier (BBB) and has been identified as crucial mediator of decreased neurogenesis and cognitive impairment in young mice after being surgically connected to the vessel system of old animals in a parabiosis model. It thus has to be assumed that differences in eotaxin-1 levels between blood donors and recipients might influence cognitive functions also in humans...
2017: Frontiers in Aging Neuroscience
Hsiang-Wei Kuo, Tung-Hsia Liu, Hsiao-Hui Tsou, Ya-Ting Hsu, Sheng-Chang Wang, Chiu-Ping Fang, Chia-Chen Liu, Andrew C H Chen, Yu-Li Liu
BACKGROUND: Degeneration of central neurons and fibers has been observed in postmortem brains of heroin dependent patients. However, there are no biomarkers to predict the severity of neurodegeneration related to heroin dependence. A correlation has been reported between inflammatory C-C motif chemokine ligand 11 (CCL11, or eotaxin-1) and neurodegeneration in Alzheimer's disease. METHODS: Three-hundred-forty-four heroin dependent, Taiwanese patients under methadone maintenance treatment (MMT) were included with clinical assessment and genomics information...
February 1, 2018: Drug and Alcohol Dependence
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