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https://www.readbyqxmd.com/read/29166758/clinical-significance-of-anti-dense-fine-speckled-70-antibody-in-patients-with-fibromyalgia
#1
Jisoo Jeong, Dong Hyun Kim, Gun Park, Suyeon Park, Hyun-Sook Kim
Background/Aims: Fibromyalgia (FM) is a common rheumatologic disease characterized by chronic widespread pain, along with various clinical manifestations including atypical autoimmune characteristics. Despite its high prevalence, there remain no approved laboratory tests to identify specific manifestations of FM, or to rule out FM from other rheumatic diseases. Anti-dense fine speckled 70 (anti-DFS70) antibodies were initially identified as a form of anti-nuclear antibodies in a patient with interstitial cystitis...
November 24, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29166756/use-of-imaging-techniques-in-large-vessel-vasculitis-and-related-conditions
#2
Annibale Versari, Nicolò Pipitone, Massimiliano Casali, Francois Jamar, Giulia Pazzola
Giant Cell Arteritis (GCA) and Takayasu's arteritis (TA) are large vessel vasculitis (LVV) primarily affecting the aorta and its major branches, mainly differentiated by the onset age (>50 years GCA and <40 years TA). In addition, temporal artery involvement and polymyalgia rheumatic are typical features of GCA, but not TA. Imaging techniques are required to secure the diagnosis of large-vessel vasculitides, and to monitor the disease course. Both morphological and metabolic imaging are involved. Morphological imaging is represented mainly by Computerized Tomography (CT), CT angiography, Magnetic Resonance (MR), MR angiography, Color-Doppler Sonography (CDS) and high-resolution CDS...
November 22, 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29166674/unpredictable-chronic-mild-stress-differentially-impairs-social-and-contextual-discrimination-learning-in-two-inbred-mouse-strains
#3
Michiel van Boxelaere, Jason Clements, Patrick Callaerts, Rudi D'Hooge, Zsuzsanna Callaerts-Vegh
Alterations in the social and cognitive domain are considered important indicators for increased disability in many stress-related disorders. Similar impairments have been observed in rodents chronically exposed to stress, mimicking potential endophenotypes of stress-related psychopathologies such as major depression disorder (MDD), anxiety, conduct disorder, and posttraumatic stress disorder (PTSD). Data from numerous studies suggest that deficient plasticity mechanisms in hippocampus (HC) and prefrontal cortex (PFC) might underlie these social and cognitive deficits...
2017: PloS One
https://www.readbyqxmd.com/read/29166644/cylindromatosis-cyld-a-deubiquitinase-attenuates-inflammatory-signaling-pathways-by-activating-toll-like-receptor-3-in-human-mesangial-cells
#4
Tadaatsu Imaizumi, Ryo Hayakari, Shojiro Watanabe, Tomomi Aizawa, Tomoh Matsumiya, Hidemi Yoshida, Kazushi Tsuruga, Shogo Kawaguchi, Hiroshi Tanaka
BACKGROUND/AIMS: Cylindromatosis (CYLD), a deubiquitinase, negatively regulates nuclear factor-κB in various cells. However, its potential roles in glomerular inflammation remain unclear. Because the activation of the Toll-like receptor 3 (TLR3)/type I interferon (IFN) pathways plays a pivotal role in chronic kidney diseases (CKD), we examined the role of CYLD in the TLR3 signaling in cultured human mesangial cells (MCs). METHODS: We stimulated CYLD-silenced MCs with polyinosinic-polycytidylic acid (poly IC), a synthetic analogue of dsRNA, and studied representative TLR3/IFN-β pathways (i...
November 22, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29166624/impact-of-processing-methods-on-the-dissolution-of-artemether-from-two-non-ordered-mesoporous-silicas
#5
Hira Tahir, Yasser Shahzad, Laura J Waters, Talib Hussain, Abid Mehmood Yousaf, Tariq Mahmood, Rizwan Sheikh
Poor aqueous solubility is often linked with a poor dissolution rate and ultimately, limited bioavailability of pharmaceutical compounds. This study describes the application of mesoporous materials (Syloid 244 and Syloid AL1) in improving the dissolution rate of a drug with poor aqueous solubility, namely artemether, utilising different processing methods including physical mixing, co-grinding and solid dispersions prepared by solvent evaporation and the lyophilisation technique. The prepared formulations were extensively characterised for their solid-state properties and the drug release attributes were studied...
November 19, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29166621/lifestyle-transitions-and-adaptive-pathogenesis-of-pseudomonas-aeruginosa
#6
REVIEW
Martina Valentini, Diego Gonzalez, Despoina Ai Mavridou, Alain Filloux
Pseudomonas aeruginosa acute and chronic infections are of great concern to human health, especially in hospital settings. It is currently assumed that P. aeruginosa has two antagonistic pathogenic strategies that parallel two different lifestyles; free-living cells are predominantly cytotoxic and induce an acute inflammatory reaction, while biofilm-forming communities cause refractory chronic infections. Recent findings suggest that the planktonic-to-sessile transition is a complex, reversible and overall dynamic differentiation process...
November 18, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/29166620/a-cell-line-specific-atlas-of-parp-mediated-protein-asp-glu-adp-ribosylation-in-breast-cancer
#7
Yuanli Zhen, Yajie Zhang, Yonghao Yu
PARP1 plays a critical role in regulating many biological processes linked to cellular stress responses. Although DNA strand breaks are potent stimuli of PARP1 enzymatic activity, the context-dependent mechanism regulating PARP1 activation and signaling is poorly understood. We performed global characterization of the PARP1-dependent, Asp/Glu-ADP-ribosylated proteome in a panel of cell lines originating from benign breast epithelial cells, as well as common subtypes of breast cancer. From these analyses, we identified 503 specific ADP-ribosylation sites on 322 proteins...
November 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/29166614/critical-modulation-of-hematopoietic-lineage-fate-by-hepatic-leukemia-factor
#8
Martin Wahlestedt, Vasileios Ladopoulos, Isabel Hidalgo, Manuel Sanchez Castillo, Rebecca Hannah, Petter Säwén, Haixia Wan, Monika Dudenhöffer-Pfeifer, Mattias Magnusson, Gudmundur L Norddahl, Berthold Göttgens, David Bryder
A gradual restriction in lineage potential of multipotent stem/progenitor cells is a hallmark of adult hematopoiesis, but the underlying molecular events governing these processes remain incompletely understood. Here, we identified robust expression of the leukemia-associated transcription factor hepatic leukemia factor (Hlf) in normal multipotent hematopoietic progenitors, which was rapidly downregulated upon differentiation. Interference with its normal downregulation revealed Hlf as a strong negative regulator of lymphoid development, while remaining compatible with myeloid fates...
November 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/29166609/gpr56-adgrg1-inhibits-mesenchymal-differentiation-and-radioresistance-in-glioblastoma
#9
Marta Moreno, Leire Pedrosa, Laia Paré, Estela Pineda, Leire Bejarano, Josefina Martínez, Veerakumar Balasubramaniyan, Ravesanker Ezhilarasan, Naveen Kallarackal, Sung-Hak Kim, Jia Wang, Alessandra Audia, Siobhan Conroy, Mercedes Marin, Teresa Ribalta, Teresa Pujol, Antoni Herreros, Avelina Tortosa, Helena Mira, Marta M Alonso, Candelaria Gómez-Manzano, Francesc Graus, Erik P Sulman, Xianhua Piao, Ichiro Nakano, Aleix Prat, Krishna P Bhat, Núria de la Iglesia
A mesenchymal transition occurs both during the natural evolution of glioblastoma (GBM) and in response to therapy. Here, we report that the adhesion G-protein-coupled receptor, GPR56/ADGRG1, inhibits GBM mesenchymal differentiation and radioresistance. GPR56 is enriched in proneural and classical GBMs and is lost during their transition toward a mesenchymal subtype. GPR56 loss of function promotes mesenchymal differentiation and radioresistance of glioma initiating cells both in vitro and in vivo. Accordingly, a low GPR56-associated signature is prognostic of a poor outcome in GBM patients even within non-G-CIMP GBMs...
November 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/29166603/caveolin1-is-required-for-th1-cell-infiltration-but-not-tight-junction-remodeling-at-the-blood-brain-barrier-in-autoimmune-neuroinflammation
#10
Sarah E Lutz, Julian R Smith, Dae Hwan Kim, Carl V L Olson, Kyle Ellefsen, Jennifer M Bates, Sunil P Gandhi, Dritan Agalliu
Lymphocytes cross vascular boundaries via either disrupted tight junctions (TJs) or caveolae to induce tissue inflammation. In the CNS, Th17 lymphocytes cross the blood-brain barrier (BBB) before Th1 cells; yet this differential crossing is poorly understood. We have used intravital two-photon imaging of the spinal cord in wild-type and caveolae-deficient mice with fluorescently labeled endothelial tight junctions to determine how tight junction remodeling and caveolae regulate CNS entry of lymphocytes during the experimental autoimmune encephalomyelitis (EAE) model for multiple sclerosis...
November 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/29166591/a-cd103-conventional-dendritic-cell-surveillance-system-prevents-development-of-overt-heart-failure-during-subclinical-viral-myocarditis
#11
Xavier Clemente-Casares, Siyavash Hosseinzadeh, Iulia Barbu, Sarah A Dick, Jillian A Macklin, Yiming Wang, Abdul Momen, Crystal Kantores, Laura Aronoff, Maylis Farno, Tiffany M Lucas, Joan Avery, Dorrin Zarrin-Khat, Heidi J Elsaesser, Babak Razani, Kory J Lavine, Mansoor Husain, David G Brooks, Clinton S Robbins, Myron Cybulsky, Slava Epelman
Innate and adaptive immune cells modulate heart failure pathogenesis during viral myocarditis, yet their identities and functions remain poorly defined. We utilized a combination of genetic fate mapping, parabiotic, transcriptional, and functional analyses and demonstrated that the heart contained two major conventional dendritic cell (cDC) subsets, CD103(+) and CD11b(+), which differentially relied on local proliferation and precursor recruitment to maintain their tissue residency. Following viral infection of the myocardium, cDCs accumulated in the heart coincident with monocyte infiltration and loss of resident reparative embryonic-derived cardiac macrophages...
November 21, 2017: Immunity
https://www.readbyqxmd.com/read/29166589/granulocyte-monocyte-progenitors-and-monocyte-dendritic-cell-progenitors-independently-produce-functionally-distinct-monocytes
#12
Alberto Yáñez, Simon G Coetzee, Andre Olsson, David E Muench, Benjamin P Berman, Dennis J Hazelett, Nathan Salomonis, H Leighton Grimes, Helen S Goodridge
Granulocyte-monocyte progenitors (GMPs) and monocyte-dendritic cell progenitors (MDPs) produce monocytes during homeostasis and in response to increased demand during infection. Both progenitor populations are thought to derive from common myeloid progenitors (CMPs), and a hierarchical relationship (CMP-GMP-MDP-monocyte) is presumed to underlie monocyte differentiation. Here, however, we demonstrate that mouse MDPs arose from CMPs independently of GMPs, and that GMPs and MDPs produced monocytes via similar but distinct monocyte-committed progenitors...
November 21, 2017: Immunity
https://www.readbyqxmd.com/read/29166588/regulatory-t-cell-migration-is-dependent-on-glucokinase-mediated-glycolysis
#13
Madhav Kishore, Kenneth C P Cheung, Hongmei Fu, Fabrizia Bonacina, Guosu Wang, David Coe, Eleanor J Ward, Alessandra Colamatteo, Maryam Jangani, Andrea Baragetti, Giuseppe Matarese, David M Smith, Robert Haas, Claudio Mauro, David C Wraith, Klaus Okkenhaug, Alberico L Catapano, Veronica De Rosa, Giuseppe D Norata, Federica M Marelli-Berg
Migration of activated regulatory T (Treg) cells to inflamed tissue is crucial for their immune-modulatory function. While metabolic reprogramming during Treg cell differentiation has been extensively studied, the bioenergetics of Treg cell trafficking remains undefined. We have investigated the metabolic demands of migrating Treg cells in vitro and in vivo. We show that glycolysis was instrumental for their migration and was initiated by pro-migratory stimuli via a PI3K-mTORC2-mediated pathway culminating in induction of the enzyme glucokinase (GCK)...
November 21, 2017: Immunity
https://www.readbyqxmd.com/read/29166586/the-broad-spectrum-of-human-natural-killer-cell-diversity
#14
REVIEW
Aharon G Freud, Bethany L Mundy-Bosse, Jianhua Yu, Michael A Caligiuri
Natural killer (NK) cells provide protection against infectious pathogens and cancer. For decades it has been appreciated that two major NK cell subsets (CD56(bright) and CD56(dim)) exist in humans and have distinct anatomical localization patterns, phenotypes, and functions in immunity. In light of this traditional NK cell dichotomy, it is now clear that the spectrum of human NK cell diversity is much broader than originally appreciated as a result of variegated surface receptor, intracellular signaling molecule, and transcription factor expression; tissue-specific imprinting; and foreign antigen exposure...
November 21, 2017: Immunity
https://www.readbyqxmd.com/read/29166581/tgf-%C3%AE-gives-an-air-of-exclusivity-to-alveolar-macrophages
#15
Bart N Lambrecht
Tissue-resident macrophages shape the development and homeostasis of the organs that they colonize. Yu et al. (2017) demonstrate that, unique to the lung, the instructive cytokine TGF-β collaborates with GM-CSF to induce the master transcription factor PPARγ to drive alveolar macrophage differentiation and maintenance early in life.
November 21, 2017: Immunity
https://www.readbyqxmd.com/read/29166580/a-sweet-solution-glycolysis-dependent-treg-cell-migration
#16
Ronen Alon
mTORC2 is a metabolic regulatory complex activated by PI3K. In this issue of Immunity, Kishore et al. (2017) demonstrate a specialized role for this complex in the migration of regulatory T (Treg) cells to sites of inflammation rather than their differentiation and survival.
November 21, 2017: Immunity
https://www.readbyqxmd.com/read/29166573/interaction-of-hsp90-with-phospholipid-model-membranes
#17
Muhan Zhang, Daoying Wang, Pengpeng Li, Chong Sun, Rong Xu, Zhiming Geng, Weimin Xu, Zhaoqi Dai
Heat shock protein 90 (Hsp90) is an essential molecular chaperone with versatile functions in cell homeostatic control under both normal and stress conditions. Hsp90 has been found to be expressed on the cell surface, but the mechanism of Hsp90 association to the membrane remains obscure. In this study, the direct interaction of Hsp90 and phospholipid vesicles was characterized, and the role of Hsp90 on membrane physical state was explored. Using surface plasmon resonance (SPR), we observed a strong interaction between Hsp90 and different compositions of lipid...
November 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29166511/primary-cutaneous-follicle-center-lymphoma
#18
Eline Pinheiro Weba Costa, Bethänia Dias de Lucena, Gabriela Athayde Amin, Maraya de Jesus Semblano Bittencourt, Leonidas Braga Dias, Carla Andréa Avelar Pires
Cutaneous lymphomas are classified according to their cellular origin into T-cell lymphoma and B-cell lymphoma. The annual incidence rate is 0.3 per 100,000 population. We report a case of a 56-year-old male patient who presented with a two-month history of nodules of varying sizes, some ulcerated, on the face, abdomen, and upper limbs. Histopathological examination and immunohistochemical study confirmed the diagnosis of primary cutaneous centrofollicular lymphoma. Studies have shown an increased incidence of non-Hodgkin lymphomas in the last decade...
September 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/29166507/pigmented-bowen-s-disease-associated-with-high-risk-hpv-simulating-melanoma-of-the-hand
#19
Rute Facchini Lellis, John Verrinder Veasey, Renata Diniz Jacques Gonçalves
Bowen's disease is an in situ squamous cell carcinoma of the skin with only 2% of pigmented cases reported. It is clinically characterized by papules and plaques of blackened surface that may be caused either by sun damage - usually in photoexposed areas in elderly individuals - or by human papillomavirus infection - usually in the anogenital region of young adults. Dermoscopic aspects of Bowen's disease are discussed for over a decade, but with no definitive criteria that would lead to a definitive diagnosis...
September 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/29166506/is-ki-67-keratin-16-involucrin-and-filaggrin-immunostaining-sufficient-to-diagnose-inflammatory-linear-verrucous-epidermal-nevus-a-report-of-eight-cases-and-a-comparison-with-psoriasis-vulgaris
#20
Jing Peng, Shu-Bin Sun, Pei-Pei Yang, Yi-Ming Fan
Inflammatory linear verrucous epidermal nevus and linear psoriasis are sometimes hard to differentiate clinically and pathologically. Although immunohistochemical expression of keratin 10 (K10), K16, Ki-67, and involucrin may be useful for differentiating both entities, these results have been reported in only a few cases. We collected data from 8 patients with inflammatory linear verrucous epidermal nevus, 11 with psoriasis vulgaris, and 8 healthy controls and evaluated immunohistochemical expression of Ki-67, K16, involucrin, and filaggrin among them...
September 2017: Anais Brasileiros de Dermatologia
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