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https://www.readbyqxmd.com/read/28918507/the-muscle-regulatory-transcription-factor-myod-participates-with-p53-to-directly-increase-the-expression-of-the-pro-apoptotic-bcl2-family-member-puma
#1
Terri J Harford, Greg Kliment, Girish C Shukla, Crystal M Weyman
The muscle regulatory transcription factor MyoD is a master regulator of skeletal myoblast differentiation. We have previously reported that MyoD is also necessary for the elevated expression of the pro-apoptotic Bcl2 family member PUMA, and the ensuing apoptosis, that occurs in a subset of myoblasts induced to differentiate. Herein, we report the identification of a functional MyoD binding site within the extended PUMA promoter. In silico analysis of the murine PUMA extended promoter revealed three potential MyoD binding sites within 2 kb of the transcription start site...
September 16, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28917306/evaluation-of-surface-antigen-tf1-17-in-feline-tritrichomonas-foetus-isolates
#2
E N Gould, L B Corbeil, S A Kania, M K Tolbert
Tritrichomonas foetus (T. foetus) is a flagellated protozoa that infects the distal ileum and proximal colon of domestic cats, as well as the urogenital tract of cattle. Feline trichomonosis is recognized as a prevalent cause of chronic diarrhea in cats worldwide. The suspected route of transmission is fecal-oral, with cats in densely crowded environments at highest risk for infection. Thus, the recommended strategy for minimizing spread of infection is to identify and isolate T. foetus-positive cats from the general population...
September 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28916104/highly-selective-and-sensitive-visualization-and-identification-of-glycoproteins-using-multi-functionalized-soluble-dendrimer
#3
Tiantian Li, Zhenlong Yu, Liyuan Zhang, Chao Wang, Sa Deng, Xiaokui Huo, Xiangge Tian, Baojing Zhang, Xiaochi Ma
Glycoproteins are the most important and complex group of posttranslational modifications known in proteins. Many clinical biomarkers and therapeutic targets in cancer are glycoproteins. However, the isolation of glyco-specific antibodies and their poor stability remains a significant challenge in analytical method and diagnostic development. In this work, for the first time, we present a technology for highly efficient and selective glycosylation analysis on membrane without the use of glyco-specific antibodies...
October 2, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28912363/tgf%C3%AE-transforming-growth-factor-%C3%AE-blockade-induces-a-human-like-disease-in-a-nondissecting-mouse-model-of-abdominal-aortic-aneurysm
#4
Fabien Lareyre, Marc Clément, Juliette Raffort, Stefanie Pohlod, Meghana Patel, Bruno Esposito, Leanne Master, Alison Finigan, Marie Vandestienne, Nikolaos Stergiopulos, Soraya Taleb, Bram Trachet, Ziad Mallat
OBJECTIVE: Current experimental models of abdominal aortic aneurysm (AAA) do not accurately reproduce the major features of human AAA. We hypothesized that blockade of TGFβ (transforming growth factor-β) activity-a guardian of vascular integrity and immune homeostasis-would impair vascular healing in models of nondissecting AAA and would lead to sustained aneurysmal growth until rupture. APPROACH AND RESULTS: Here, we test this hypothesis in the elastase-induced AAA model in mice...
September 14, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28910446/retinal-astrocytes-and-gabaergic-wide-field-amacrine-cells-express-pdgfr%C3%AE-connection-to-retinal-ganglion-cell-neuroprotection-by-pdgf-aa
#5
Shokichi Takahama, Modupe O Adetunji, Tantai Zhao, Shan Chen, Wei Li, Stanislav I Tomarev
Purpose: Our previous experiments demonstrated that intravitreal injection of platelet-derived growth factor-AA (PDGF-AA) provides retinal ganglion cell (RGC) neuroprotection in a rodent model of glaucoma. Here we used PDGFRα-enhanced green fluorescent protein (EGFP) mice to identify retinal cells that may be essential for RGC protection by PDGF-AA. Methods: PDGFRα-EGFP mice expressing nuclear-targeted EGFP under the control of the PDGFRα promoter were used. Localization of PDGFRα in the neural retina was investigated by confocal imaging of EGFP fluorescence and immunofluorescent labeling with a panel of antibodies recognizing different retinal cell types...
September 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28900492/identification-of-novel-epitopes-with-agonistic-activity-for-the-development-of-tumor-immunotherapy-targeting-trail-r1
#6
Lu Guo, Xin Sun, Zhichao Hao, Jingjing Huang, Xiaojian Han, Yajie You, Yaying Li, Meiying Shen, Tatsuhiko Ozawa, Hiroyuki Kishi, Atsushi Muraguchi, Aishun Jin
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) receptor-1/2 (TRAIL-R1/R2), also known as death receptors, are expressed in a wide variety of tumor cells. Although TRAIL can induce cell apoptosis by engaging its cognate TRAIL-R1/R2, some tumor cells are or become resistant to TRAIL treatment. Monoclonal antibodies (mAbs) against TRAIL-R1/R2 have been developed to use as potential antitumor therapeutic agents instead of TRAIL. However, TRAIL-R1/R2-based tumor therapy has not yet been realized...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28900323/detection-and-significance-of-human-epidermal-growth-factor-receptor-2-expression-in-gastric-adenocarcinoma
#7
Sutapa Halder, Debjani Mallick, Priyanka Mondal, Debajyoti Singha Roy, Aniket Halder, Sudipta Chakrabarti
BACKGROUND: Human epidermal growth factor receptor 2 (HER2) is involved in the pathogenesis of several types of cancer, including gastric cancer. Overexpression of HER2 is noted in 10%-22.8% of gastric adenocarcinoma and its identification is of immense importance for management by targeted drugs. Detection of HER2 expression in gastric malignancies has not been undertaken previously in the local population. OBJECTIVE: To ascertain HER2 immunohistochemical expression in gastric adenocarcinoma and its relationship with the anatomic location and histomorphology...
April 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/28899804/can-we-withdraw-anticoagulation-in-patients-with-antiphospholipid-syndrome-after-seroconvertion
#8
REVIEW
S Sciascia, E Coloma-Bazán, M Radin, M L Bertolaccini, C López-Pedrera, Gerard Espinosa, P L Meroni, R Cervera, M J Cuadrado
The current mainstay of treatment in patients with thrombotic antiphospholipid syndrome (APS) is long-term anticoagulation, mainly with Vitamin K antagonist agents. Some recently available studies have created new ground for discussion about the possible discontinuation of anticoagulation therapy in patients with a history of thrombotic APS in whom antiphospholipid antibodies (aPL) are not detected any longer (i.e. aPL seroconversion). We report the main points discussed at the last CORA Meeting regarding the issue whether or not anticoagulation can be stopped after aPL seroconversion...
September 9, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28898695/identification-of-gpc2-as-an-oncoprotein-and-candidate-immunotherapeutic-target-in-high-risk-neuroblastoma
#9
Kristopher R Bosse, Pichai Raman, Zhongyu Zhu, Maria Lane, Daniel Martinez, Sabine Heitzeneder, Komal S Rathi, Nathan M Kendsersky, Michael Randall, Laura Donovan, Sorana Morrissy, Robyn T Sussman, Doncho V Zhelev, Yang Feng, Yanping Wang, Jennifer Hwang, Gonzalo Lopez, Jo Lynne Harenza, Jun S Wei, Bruce Pawel, Tricia Bhatti, Mariarita Santi, Arupa Ganguly, Javed Khan, Marco A Marra, Michael D Taylor, Dimiter S Dimitrov, Crystal L Mackall, John M Maris
We developed an RNA-sequencing-based pipeline to discover differentially expressed cell-surface molecules in neuroblastoma that meet criteria for optimal immunotherapeutic target safety and efficacy. Here, we show that GPC2 is a strong candidate immunotherapeutic target in this childhood cancer. We demonstrate high GPC2 expression in neuroblastoma due to MYCN transcriptional activation and/or somatic gain of the GPC2 locus. We confirm GPC2 to be highly expressed on most neuroblastomas, but not detectable at appreciable levels in normal childhood tissues...
September 11, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28898058/mechanoregulation-of-sm22%C3%AE-transgelin
#10
Rong Liu, M Moazzem Hossain, Xuequn Chen, Jian-Ping Jin
SM22α, also named transgelin, is an actin filament-associated protein in smooth muscle and fibroblast. Three decades after discovery, the biological function of SM22α remains under investigation. Here we report a novel finding that the expression and degradation of SM22α/transgelin is regulated by mechanical tension. Following a mass spectrometry identification of SM22α degradation in isolated and tension-unloaded mouse aorta, we developed specific monoclonal antibodies to study the regulation of SM22α in human fetal lung myofibroblast line MRC-5 and primary cultures of neonatal mouse skin fibroblast...
September 12, 2017: Biochemistry
https://www.readbyqxmd.com/read/28895041/unmet-needs-in-the-pathogenesis-and-treatment-of-vasculitides
#11
REVIEW
Francesco Muratore, Giulia Pazzola, Alessandra Soriano, Nicolò Pipitone, Stefania Croci, Martina Bonacini, Luigi Boiardi, Carlo Salvarani
Despite the progress in the last years on the field of vasculitides, there are several unmet needs regarding classification, disease activity assessment, predictors of flares and complications, and type of treatment for the different forms. The 1990 American College of Rheumatology (ACR) classification criteria currently used to define giant cell arteritis and Takayasu arteritis were designed to discriminate between different types of vasculitides but not to differentiate vasculitis from other disorders. Recently, efforts have been made to overcome the shortcomings of the ACR criteria...
September 11, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28894725/safety-of-checkpoint-inhibitors-for-cancer-treatment-strategies-for-patient-monitoring-and-management-of-immune-mediated-adverse-events
#12
REVIEW
Marianne Davies, Emily A Duffield
Immune checkpoint inhibitors (ICPIs), in the form of monoclonal antibodies against CTLA-4, PD-1, and PD-L1, have dramatically changed the treatment approach in several advanced cancers. Due to their mechanism of action, these novel agents are associated with a unique spectrum of immune-mediated adverse events (imAEs), with a safety profile that indicates they are better tolerated than traditional chemotherapeutic agents. This article aims to provide education on the current knowledge about imAEs associated with ICPI treatment, including strategies and tools for the prompt identification, evaluation, and optimal management of these events...
2017: ImmunoTargets and Therapy
https://www.readbyqxmd.com/read/28894443/improved-vaccine-against-prrsv-current-progress-and-future-perspective
#13
REVIEW
Yuchen Nan, Chunyan Wu, Guoqian Gu, Weiyao Sun, Yan-Jin Zhang, En-Min Zhou
Porcine reproductive and respiratory syndrome virus (PRRSV), one of the most economically significant pathogens worldwide, has caused numerous outbreaks during the past 30 years. PRRSV infection causes reproductive failure in sows and respiratory disease in growing and finishing pigs, leading to huge economic losses for the swine industry. This impact has become even more significant with the recent emergence of highly pathogenic PRRSV strains from China, further exacerbating global food security. Since new PRRSV variants are constantly emerging from outbreaks, current strategies for controlling PRRSV have been largely inadequate, even though our understanding of PRRSV virology, evolution and host immune response has been rapidly expanding...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28893101/improving-hepatitis-c-identification-technology-alone-is-not-the-answer
#14
Bruce Nitsche, Sara C Miller, Margaret Giorgio, Carolyn A Berry, Andrew Muir
An estimated 3 to 5 million Americans are chronically infected with hepatitis C virus (HCV), and approximately 75% of those persons were born between 1945 and 1965 (the so-called baby boomer generation). Because of the largely asymptomatic nature of HCV, up to 50% of those infected are unaware of their disease. Risk-based testing has been largely ineffective. Based on prevalence data, the Centers for Disease Control and Prevention and other organizations recommend a onetime HCV antibody test for all baby boomers...
September 1, 2017: Health Promotion Practice
https://www.readbyqxmd.com/read/28891307/a-comprehensive-narrative-review-of-diagnostic-biomarkers-in-human-primary-membranous-nephropathy
#15
Shiva Kalantari, Mohsen Nafar
Membranous nephropathy (MN) is relatively major cause of nephrotic syndrome in adults which is recognized as an organ-specific autoimmune disease. The etiology of most cases is idiopathic, whereas the secondary MN is caused by systemic autoimmune diseases, infections, medications and malignancies. The idiopathic disease is developed by the formation of sub-epithelial immune complex deposits most likely due to binding the circulating auto-antibodies to intrinsic antigen on podocytes. The major auto antibody is the anti-phospholipase A2 receptor (anti-PLA2R), however, it is not enough sensitive...
September 11, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28890364/sequential-screening-by-clonepix-fl-and-intracellular-staining-facilitate-isolation-of-high-producer-cell-lines-for-monoclonal-antibody-manufacturing
#16
Gargi Roy, Guillermo Miro-Quesada, Li Zhuang, Tom Martin, Jie Zhu, Herren Wu, Marcello Marelli, Michael A Bowen
The generation of stable cell lines that express therapeutic monoclonal antibodies (mAbs) for manufacturing purposes is a time and labor intensive process. Since cell line development is on the critical path to clinical testing, timely generation of highly productive manufacturing cell lines is essential to remain competitive in the biopharmaceutical industry. To aid this essential function we have developed a methodology for the selection of antibody expressing cells using fluorescence based ClonePix FL colony isolation and flow cytometry analysis following intracellular staining for immunoglobulin G (IgG)...
September 7, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28890135/targeted-immune-interventions-for-an-hiv-1-cure
#17
REVIEW
Matthieu Perreau, Riddhima Banga, Giuseppe Pantaleo
Combination antiretroviral therapy (cART) induces durable suppression of virus replication but is unable to eradicate HIV. Invariably, virus rebound follows treatment interruption and life-long cART is thus required. Advances have been made in our understanding of HIV latency, identification of HIV cell reservoirs, regulation of HIV-specific immune responses, as well as in the development of broad neutralizing antibodies and putative therapeutic vaccines. These have provided a scientific basis to explore alternative strategies that achieve durable suppression of viremia in the absence of cART, the so-called functional cure...
September 7, 2017: Trends in Molecular Medicine
https://www.readbyqxmd.com/read/28886455/development-of-an-electrochemical-immunosensor-for-the-diagnostic-testing-of-spotted-fever-using-synthetic-peptides
#18
Isis C Prado, Mônica E T A Chino, Antonia L Dos Santos, André L A Souza, Luciano G Pinho, Elba R S Lemos, Salvatore G De-Simone
Spotted fever is a rare acute and multisystemic febrile infectious disease with a mortality rate of ≥50% without adequate antibiotic treatment, and in diagnosed and treated cases, of approximately 2.5%. Currently, the applied test to diagnose this disease is the indirect immunofluorescence reaction, however two samples of paired sera are necessary to confirm the diagnosis, since using only one sample may allow for confusion with cross reactions. OmpA is an outer membrane protein present in the R. rickettsia, the etiological agent of spotted fever, able to activate dendritic and macrophage cells...
August 16, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28884285/immune-tb-antibody-phage-display-library-as-a-tool-to-study-b-cell-immunity-in-tb-infections
#19
Nurul Hamizah Hamidon, Siti Suraiya, Maria E Sarmiento, Armando Acosta, Mohd Nor Norazmi, Theam Soon Lim
B cells and in particular antibodies has always played second fiddle to cellular immunity in regard to tuberculosis (TB). However, recent studies has helped position humoral immunity especially antibodies back into the foray in relation to TB immunity. Therefore, the ability to correlate the natural antibody responses of infected individuals toward TB antigens would help strengthen this concept. Phage display is an intriguing approach that can be utilized to study antibody-mediated responses against a particular infection via harvesting the B cell repertoire from infected individuals...
September 7, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28884236/identification-of-a-serotype-independent-linear-epitope-of-foot-and-mouth-disease-virus
#20
Baolin Yang, Mingxia Wang, Wenming Liu, Zhiqiang Xu, Haiwei Wang, Decheng Yang, Wenge Ma, Guohui Zhou, Li Yu
Foot-and-mouth disease (FMD), caused by foot-and-mouth disease virus (FMDV), is a highly contagious infectious disease that affects domestic and wild cloven-hoofed animals worldwide. VP2 is a structural protein of FMDV. In this study, an FMDV serotype-independent monoclonal antibody (MAb), 10B10, against the viral capsid protein VP2 was generated, and a series of GST fusion proteins expressing a truncated peptide of VP2 was subjected to Western blot analysis using MAb 10B10. Their results indicated that the peptide (8)TLLEDRILT(16) of VP2 is the minimal requirement of the epitope recognized by MAb 10B10...
September 7, 2017: Archives of Virology
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