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https://www.readbyqxmd.com/read/28214995/development-and-characterization-of-monoclonal-antibody-against-human-il-37b
#1
Yu-Chi Gao, Yan Jia, De-Qian Xiao, Xin Wang, You-Chao Dai, Shi-Yan Yu, Chen Chen, Ze-Gang Zhuang, Xiao-Xia Fu, Jun-Ai Zhang, Bi-Ying Zheng, Zhi-Hong Chen, Ji-Xin Zhong, Zhang-Quan Chen, Jun-Fa Xu
IL-37 has been described as a natural inhibitor of immune responses. Monoclonal antibody (mAb) against human IL-37b with high affinity and specificity can serve as a molecular probe to detect IL-37 and study IL-37 functions, mechanisms and related signal pathways in inflammatory diseases. However, there are very few such mAbs against human IL-37 commercially available so far. In the current study, monoclonal antibodies against human IL-37b were developed by fusing splenocytes from immunized mouse with SP2/0 myeloma cells and polyethylene glycol...
February 18, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28214900/mir-21-regulates-tnf-%C3%AE-induced-cd40-expression-via-the-sirt1-nf-%C3%AE%C2%BAb-pathway-in-renal-inner-medullary-collecting-duct-cells
#2
Qinqin Lin, Yuanwen Geng, Meng Zhao, Shuaishuai Lin, Qing Zhu, Zhenjun Tian
BACKGROUND/AIMS: Recent studies have indicated that microRNA-21 (miR-21) is involved in the inflammatory response in relation to renal disease. Sirtuin1 (SIRT1) exerts renoprotective properties by counteracting inflammation. The activation of CD40 triggers inflammation that participates in renal inflammation and injury. The relationship between miR-21, SIRT1 and CD40, however, remains elusive. METHODS: Immunohistochemistry, small-interfering RNA (siRNA) transfection, quantitative real-time PCR and western blotting were applied to assess the morphological, functional and molecular mechanisms in primary cultured renal inner medullary collecting duct (IMCD) cells...
January 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214792/suppression-of-tumorigenicity-2-in-heart-failure-with-preserved-ejection-fraction
#3
Omar F AbouEzzeddine, Paul M McKie, Shannon M Dunlay, Susanna R Stevens, G Michael Felker, Barry A Borlaug, Horng H Chen, Russell P Tracy, Eugene Braunwald, Margaret M Redfield
BACKGROUND: Soluble suppression of tumorigenicity 2 (sST2) receptor is a biomarker that is elevated in certain systemic inflammatory diseases. Comorbidity-driven microvascular inflammation is postulated to play a key role in heart failure with preserved ejection fraction (HFpEF) pathophysiology, but data on how sST2 relates to clinical characteristics or inflammatory conditions or biomarkers in HFpEF are limited. We sought to determine circulating levels and clinical correlates of sST2 in HFpEF...
February 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28214536/t-cell-immunoregulation-in-active-ocular-toxoplasmosis
#4
Cynthia A Cordeiro, Erica L M Vieira, Vinicius M Castro, Walderez O Dutra, Rogerio A Costa, Juliana L Orefice, Wesley R Campos, Fernando Orefice, Lucy H Young, Antonio Lucio Teixeira
Toxoplasma gondii infection is an important cause of infectious ocular disease. The physiopathology of retinochoroidal lesions associated with this infection is not completely understood. The present study was undertaken to investigate cytokine production by T cells from individuals with active toxoplasmic retinochoroiditis (TR) comparing with controls. Eighteen patients with active TR and 15 healthy controls (6 controls IgG(+) to Toxoplasma and 9 negative controls) were included in the study. Peripheral blood mononuclear cells were incubated in the presence or absence of T...
February 15, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28214532/smn1-functions-as-a-novel-inhibitor-for-traf6-mediated-nf-%C3%AE%C2%BAb-signaling
#5
Eun Kyung Kim, Eui-Ju Choi
Survival motor neuron (SMN) is a 38-kDa protein, whose deficiency in humans develops spinal muscular atrophy (SMA), an autosomal recessive neurodegenerative disease with muscular atrophy due to motor neuron death in the spinal cord. We now report that SMN prevents the activation of TRAF6 and IκB kinase (IKK) and thereby negatively regulates the NF-κB signaling processes. SMN physically interacted with TRAF6 and with each component of the IKK complex, IKK-α, IKK-β, and IKK-γ in BV2 microglia cells. Moreover, SMN1 inhibited the E3 ubiquitin ligase activity of TRAF6 as well as the kinase activity of IKK...
February 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28214521/neuroprotective-effect-of-salvianolic-acid-b-against-cerebral-ischemic-injury-in-rats-via-the-cd40-nf-%C3%AE%C2%BAb-pathway-associated-with-suppression-of-platelets-activation-and-neuroinflammation
#6
Shixin Xu, Aiqin Zhong, Huining Ma, Dan Li, Yue Hu, Yingzhi Xu, Junping Zhang
Neuroinflammation plays a critical role in the pathogenesis of ischemia/reperfusion (I/R) injury. Activated platelets are increasingly regarded as initiators and/or amplifiers of inflammatory processes in cerebral I/R injury. Salvianolic acid B (SAB) is the most abundant bioactive compound of Salviae miltiorrhizae, a well-known Chinese herb used to promote blood circulation and eliminating blood stasis. S. miltiorrhizae has been used clinically in Asia for the treatment of ischemic cerebrovascular diseases...
February 15, 2017: Brain Research
https://www.readbyqxmd.com/read/28214508/surgical-management-of-pericardial-diseases
#7
REVIEW
Douglas R Johnston
Disease of the pericardium represents a relatively rare indication for cardiac surgery, and there exist no widely accepted guidelines for surgical management. As such, the surgical approach to the pericardium has relied largely on institutional experience with a slow evolution based on published studies. In particular, management of pericardial constriction has varied widely from surgeon to surgeon and institution to institution, in large part due to a perception of inherent high risk to the procedure. This review covers the current practice of surgery for disease of the pericardium, with particular focus on the evolution of indications for pericardiectomy, new applications in inflammatory or relapsing pericarditis, and the progressive refinement in surgical technique and operative planning which have led to significantly improved outcomes in experienced centers...
January 2017: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/28214412/histiocytoses-emerging-neoplasia-behind-inflammation
#8
REVIEW
Julien Haroche, Fleur Cohen-Aubart, Barret J Rollins, Jean Donadieu, Frédéric Charlotte, Ahmed Idbaih, Augusto Vaglio, Omar Abdel-Wahab, Jean-François Emile, Zahir Amoura
Histiocytoses are disorders characterised by inflammation and the accumulation of cells derived from the monocyte and macrophage lineages, which results in tissue damage. Although they are often considered rare disorders with protean clinical manifestations, considerable advances in the understanding of their genetics have led to increased clinical recognition of these conditions, and fuelled further insights into their pathogenesis. In this Review, we describe insights into the cells of origin, molecular pathology, clinical features, and treatment strategies for some of the most common histiocytic disorders, including Langerhans cell histiocytosis, Erdheim-Chester disease, and Rosai-Dorfman disease...
February 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28214378/calcium-signaling-through-l-type-calcium-channels-role-in-pathophysiology-of-spinal-nociceptive-transmission
#9
REVIEW
Olivier Roca-Lapirot, Houda Radwani, Franck Aby, Frédéric Nagy, Marc Landry Pascal Fossat
L-type voltage-gated calcium channels (VGCCs) are ubiquitous channels in the central nervous system. L-type calcium channels (LTCs) are mostly post-synaptic channels regulating neuronal firing and gene expression. They play a role in important physio-pathological processes such as learning and memory, Parkinson's disease, autism and, as recognized more recently, in the pathophysiology of pain processes. Classically, the fundamental role of these channels in cardiovascular functions has limited the use of classical molecules to treat LTC-dependent disorders...
February 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28214264/identification-of-candidate-cerebrospinal-fluid-biomarkers-in-parkinsonism-using-quantitative-proteomics
#10
N K Magdalinou, A J Noyce, R Pinto, E Lindstrom, J Holmén-Larsson, M Holtta, K Blennow, H R Morris, T Skillbäck, T T Warner, A J Lees, I Pike, M Ward, H Zetterberg, J Gobom
INTRODUCTION: Neurodegenerative parkinsonian syndromes have significant clinical and pathological overlap, making early diagnosis difficult. Cerebrospinal fluid (CSF) biomarkers may aid the differentiation of these disorders, but other than α-synuclein and neurofilament light chain protein, which have limited diagnostic power, specific protein biomarkers remain elusive. OBJECTIVES: To study disease mechanisms and identify possible CSF diagnostic biomarkers through discovery proteomics, which discriminate parkinsonian syndromes from healthy controls...
January 31, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28214226/cd49a-expression-defines-tissue-resident-cd8-t-cells-poised-for-cytotoxic-function-in-human-skin
#11
Stanley Cheuk, Heinrich Schlums, Irène Gallais Sérézal, Elisa Martini, Samuel C Chiang, Nicole Marquardt, Anna Gibbs, Ebba Detlofsson, Andrea Introini, Marianne Forkel, Charlotte Höög, Annelie Tjernlund, Jakob Michaëlsson, Lasse Folkersen, Jenny Mjösberg, Lennart Blomqvist, Marcus Ehrström, Mona Ståhle, Yenan T Bryceson, Liv Eidsmo
Tissue-resident memory T (Trm) cells form a heterogeneous population that provides localized protection against pathogens. Here, we identify CD49a as a marker that differentiates CD8(+) Trm cells on a compartmental and functional basis. In human skin epithelia, CD8(+)CD49a(+) Trm cells produced interferon-γ, whereas CD8(+)CD49a(-) Trm cells produced interleukin-17 (IL-17). In addition, CD8(+)CD49a(+) Trm cells from healthy skin rapidly induced the expression of the effector molecules perforin and granzyme B when stimulated with IL-15, thereby promoting a strong cytotoxic response...
February 13, 2017: Immunity
https://www.readbyqxmd.com/read/28214142/-a-case-of-rhinofacial-entomophthoromycosis-in-soudano-sahelian-tropical-climate-in-burkina-faso
#12
S Bamba, V Konsegré, A Zida, I Sangaré, M Cissé, R Beogo, B Diallo, J B Andonaba, R T Guiguemdé
We describe a rhinofacial entomophthoramycosis case in a sexagenarian (65 years old) housewife. She was immunocompetent and resident of Burkina Faso. She consulted both the service of dermatology and the service of stomatology of the Teaching Hospital of Bobo-Dioulasso in February 2016 for a diffuse facial tumefaction evolving over six months. This tumefaction was associated with headaches and a left nasal obstruction. Histological examination of the lesion showed an important and polymorphic inflammatory reaction...
February 14, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28214042/erosive-pustular-dermatosis-of-the-scalp-clinical-trichoscopic-and-histopathologic-features-of-20-cases
#13
Michela Starace, Camilla Loi, Francesca Bruni, Aurora Alessandrini, Cosimo Misciali, Annalisa Patrizi, Bianca Maria Piraccini
BACKGROUND: Erosive pustular dermatosis of the scalp is a chronic eruption that leads to scarring alopecia. OBJECTIVE: The clinical, dermoscopic, and histopathological features and the course of the disease in 20 patients were reviewed and compared with the reports in the literature. METHODS: Gender, age at diagnosis, age at onset, duration, topography, predisposing factors, concomitant diseases, trichoscopy, histology, treatment, and outcome were taken into consideration...
February 14, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28213891/opioids-and-the-immune-system-friend-or-foe
#14
REVIEW
Lisanne Mirja Plein, Heike L Rittner
Systemically administered opioids are among the most powerful analgesics for treating severe pain. Several negative side-effects (respiratory depression, addiction, nausea, confusion) and the risk of opioid-induced hyperalgesia accompany opioid administration. One other side effect is the potential of opioids to suppress the immune response and thereby to increase the vulnerability for infections. Several studies have investigated the link between opioids and immunosuppression in vitro, in vivo as well as in patients with divergent results: Exogenous opioids such as morphine and fentanyl can impair macrophage and natural killer cell as well as T cell function and weaken the gut barrier in vitro and in animal studies...
February 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28213833/molecular-imaging-in-synthetic-biology-and-synthetic-biology-in-molecular-imaging
#15
REVIEW
Assaf A Gilad, Mikhail G Shapiro
Biomedical synthetic biology is an emerging field in which cells are engineered at the genetic level to carry out novel functions with relevance to biomedical and industrial applications. This approach promises new treatments, imaging tools, and diagnostics for diseases ranging from gastrointestinal inflammatory syndromes to cancer, diabetes, and neurodegeneration. As these cellular technologies undergo pre-clinical and clinical development, it is becoming essential to monitor their location and function in vivo, necessitating appropriate molecular imaging strategies, and therefore, we have created an interest group within the World Molecular Imaging Society focusing on synthetic biology and reporter gene technologies...
February 17, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28213794/selected-cytokine-pathways-in-rheumatoid-arthritis
#16
REVIEW
Mélissa Noack, Pierre Miossec
Rheumatoid arthritis (RA) is a chronic inflammatory disease leading to joint destruction. Cytokines play a key role in its pathogenesis. They contribute to the induction and maintenance of inflammation and thus provide therapeutic targets. Many cytokines are involved in RA, and this review focuses on a few critical ones: tumor necrosis factor (TNF), interleukin (IL)-6, IL-1, IL-17, and GM-CSF. TNF and IL-6 are both well-established targets in RA treatment, and new biologic agents are reaching the market. IL-1 represents a more complex cytokine as results in humans do not reach those in animal models...
February 17, 2017: Seminars in Immunopathology
https://www.readbyqxmd.com/read/28213682/mathematical-modelling-of-cytokines-mmps-and-fibronectin-fragments-in-osteoarthritic-cartilage
#17
Michelle Baker, Bindi S Brook, Markus R Owen
Osteoarthritis (OA) is a degenerative disease which causes pain and stiffness in joints. OA progresses through excessive degradation of joint cartilage, eventually leading to significant joint degeneration and loss of function. Cytokines, a group of cell signalling proteins, present in raised concentrations in OA joints, can be classified into pro-inflammatory and anti-inflammatory groups. They mediate cartilage degradation through several mechanisms, primarily the up-regulation of matrix metalloproteinases (MMPs), a group of collagen-degrading enzymes...
February 17, 2017: Journal of Mathematical Biology
https://www.readbyqxmd.com/read/28213589/sh479-a-betulinic-acid-derivative-ameliorates-experimental-autoimmune-encephalomyelitis-by-regulating-the-th17-treg-balance
#18
Jing Li, Ji Jing, Yang Bai, Zhen Li, Roumei Xing, Binhe Tan, Xueyun Ma, Wenwei Qiu, Changsheng Du, Bing Du, Fan Yang, Jie Tang, Stefan Siwko, Mingyao Liu, Huaqing Chen, Jian Luo
CD4+ T helper cells, especially Th17 cells, combined with immune regulatory network dysfunction, play key roles in autoimmune diseases including multiple sclerosis (MS). Betulinic acid (BA), a natural pentacyclic triterpenoid, has been reported to be involved in anti-inflammation, in particular having an inhibitory effect on pro-inflammatory cytokine IL-17 and IFN-γ production. In this study, we screened BA derivatives and found a BA derivative, SH479, which had a greater inhibitory effect on Th17 differentiation...
February 17, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28213564/seven-year-tolerability-profile-of-glucocorticoids-use-in-early-rheumatoid-arthritis-data-from-the-espoir-cohort
#19
Camille Roubille, Nathalie Rincheval, Maxime Dougados, René-Marc Flipo, Jean-Pierre Daurès, Bernard Combe
OBJECTIVE: To explore the 7-year tolerability profile of glucocorticoids (GC) for early rheumatoid arthritis (RA). METHODS: We examined data for 602 patients with RA from the early arthritis Etude et Suivi des POlyarthrites Indifférenciées Récentes (ESPOIR) cohort (<6 months disease duration) stratified into two groups: with or without GC treatment at least once during follow-up (median 7 years (IQR 0.038-7.65)). The main outcome was a composite of death, cardiovascular disease (including myocardial ischaemia, cerebrovascular accident and heart failure), severe infection and fracture...
February 17, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28213503/inhibition-of-inflammatory-gene-transcription-by-il-10-is-associated-with-rapid-suppression-of-lipopolysaccharide-induced-enhancer-activation
#20
Evan A Conaway, Dalila C de Oliveira, Christine M McInnis, Scott B Snapper, Bruce H Horwitz
IL-10 limits the magnitude of inflammatory gene expression following microbial stimuli and is essential to prevent inflammatory disease; however, the molecular basis for IL-10-mediated inhibition remains elusive. Using a genome-wide approach, we demonstrate that inhibition of transcription is the primary mechanism for IL-10-mediated suppression in LPS-stimulated macrophages and that inhibited genes can be divided into two clusters. Genes in the first cluster are inhibited only if IL-10 is included early in the course of LPS stimulation and is strongly enriched for IFN-inducible genes...
February 17, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
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