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https://www.readbyqxmd.com/read/28939748/in-depth-genetic-analysis-of-sclerosing-epithelioid-fibrosarcoma-reveals-recurrent-genomic-alterations-and-potential-treatment-targets
#1
Elsa Arbajian, Florian Puls, Cristina R Antonescu, M Fernanda Amary, Raf Sciot, Maria Debiec-Rychter, Vaiyapuri Sumathi, Marcus Järås, Linda Magnusson, Jenny Nilsson, Jakob Hofvander, Fredrik Mertens
PURPOSE: Sclerosing epithelioid fibrosarcoma (SEF) is a highly aggressive soft tissue sarcoma closely related to low-grade fibromyxoid sarcoma (LGFMS). Some tumors display morphological characteristics of both SEF and LGFMS, so called hybrid SEF/LGFMS. Despite the overlap of gene fusion variants between these two tumor types, SEF is much more aggressive. The present study aimed to further characterize SEF and hybrid SEF/LGFMS genetically in order to better understand the role of the characteristic fusion genes and possible additional genetic alterations in tumorigenesis...
September 22, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28923293/two-polysomnographic-features-of-rem-sleep-behavior-disorder-clinical-variations-insight-for-parkinson-s-disease
#2
Yun Shen, Yong-Ping Dai, Yi Wang, Jie Li, Kang-Ping Xiong, Cheng-Jie Mao, Jun-Ying Huang, Wei-Feng Luo, Chun-Feng Liu
INTRODUCTION: Loss of REM sleep muscle atonia (RWA) and dream-enactment behavior (DEB) are two associated features of REM sleep behavior disorder (RBD), which is frequently associated with Parkinson's disease (PD). Few studies have examined both DEB and RWA simultaneously in patients with PD. This study aimed to evaluate relationships between RWA, DEB and clinical characteristics of PD. METHODS: We conducted overnight polysomnography in 145 patients with PD. DEB (motor behaviors and/or vocalizations during REM) and increased RWA (IRWA; tonic and phasic chin EMG density ≥ 30% and ≥15%, respectively) were identified...
September 5, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28865861/liver-transcriptome-analysis-reveals-important-factors-involved-in-the-metabolic-adaptation-of-the-transition-cow
#3
N-T Ha, C Drögemüller, C Reimer, F Schmitz-Hsu, R M Bruckmaier, H Simianer, J J Gross
During early lactation, dairy cows experience a severe metabolic load often resulting in the development of various diseases. The inevitable deficiency in nutrients and energy at the onset of lactation requires an optimal adaptation of the hepatic metabolism to overcome metabolic stress. We conducted a whole-liver transcriptome analysis for the transition cow to identify novel factors crucial for metabolic adaptation. Liver samples were obtained from 6 Red Holstein dairy cows (parity 2 to 7, mean ± standard deviation: 3...
August 30, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28807377/crem-transgene-mice-an-animal-model-of-atrial-fibrillation-and-thrombogenesis
#4
A Bukowska, M Felgendreher, B Scholz, C Wolke, J S Schulte, E Fehrmann, E Wardelmann, M D Seidl, U Lendeckel, K Himmler, A Gardemann, A Goette, F U Müller
BACKGROUND: The molecular pathomechanisms underlying atrial thrombogenesis are multifactorial and still require detailed investigations. Transgenic mice with cardiomyocyte-directed expression of the transcriptional repressor CREM-IbΔC-X (CREM-TG) represent an experimental model of atrial fibrillation (AF) that shows a gradual, age-dependent progression from atrial ectopy to persistent AF. Importantly, this model develops biatrial thrombi. The molecular characteristics related to the thrombogenesis in CREM-TG mice have not been studied, yet...
August 1, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28618421/identification-of-tisp40-as-an-essential-regulator-of-renal-tubulointerstitial-fibrosis-via-tgf-%C3%AE-smads-pathway
#5
Cheng-Cheng Xiao, Jie Zhang, Peng-Cheng Luo, Cong Qin, Yang Du, Jin-Zhuo Ning, Hai-Zhou Zheng
BACKGROUND: Tisp40, a transcription factor of the CREB/CREM family, is involved in cell proliferation, differentiation and other biological functions, but its role in renal tubulointerstitial fibrosis is unknown. METHODS: In our study, we investigated the effects of Tisp40 on extracellular matrix (ECM) accumulation, epithelial-mesenchymal transition (EMT) and the underlying molecular mechanisms in transforming growth factor-β (TGF-β)-stimulated TCMK-1 cells by quantitative real-time polymerase chain reaction (qPCR), Western blot analysis and immunofluorescence in vitro, and further explored the role of Tisp40 on renal fibrosis induced by ischemia-reperfusion (I/R) by qPCR, Western blot analysis, hydroxyproline analysis, Masson trichrome staining and immunohistochemistry staining in vivo...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28569553/effects-of-combined-exercise-training-and-electromyostimulation-treatments-in-chronic-heart-failure-a-prospective-multicentre-study
#6
Marie C Iliou, Bénédicte Vergès-Patois, Bruno Pavy, Anais Charles-Nelson, Catherine Monpère, Rudy Richard, Jean C Verdier
Background Exercise training as part of a comprehensive cardiac rehabilitation is recommended for patients with cardiac heart failure. It is a valuable method for the improvement of exercise tolerance. Some studies reported a similar improvement with quadricipital electrical myostimulation, but the effect of combined exercise training and electrical myostimulation in cardiac heart failure has not been yet evaluated in a large prospective multicentre study. Purpose The aim of this study was to determine whether the addition of low frequency electrical myostimulation to exercise training may improve exercise capacity and/or muscular strength in cardiac heart failure patients...
August 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28526353/stretch-activated-two-pore-domain-k2p-potassium-channels-in-the-heart-focus-on-atrial-fibrillation-and-heart-failure
#7
Constanze Schmidt, Felix Wiedmann, Stefan M Kallenberger, Antonius Ratte, Jan S Schulte, Beatrix Scholz, Frank Ulrich Müller, Niels Voigt, Maria-Patapia Zafeiriou, Joachim R Ehrlich, Ursula Tochtermann, Gábor Veres, Arjang Ruhparwar, Matthias Karck, Hugo A Katus, Dierk Thomas
Two-pore-domain potassium (K2P) channels modulate cellular excitability. The significance of stretch-activated cardiac K2P channels (K2P2.1, TREK-1, KCNK2; K2P4.1, TRAAK, KCNK4; K2P10.1, TREK-2, KCNK10) in heart disease has not been elucidated in detail. The aim of this work was to assess expression and remodeling of mechanosensitive K2P channels in atrial fibrillation (AF) and heart failure (HF) patients in comparison to murine models. Cardiac K2P channel levels were quantified in atrial (A) and ventricular (V) tissue obtained from patients undergoing open heart surgery...
May 16, 2017: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/28498662/submolecular-gates-self-assemble-for-hot-electron-transfer-in-proteins
#8
Neta Filip-Granit, Eran Goldberg, Ilan Samish, Idan Ashur, Milko E van der Boom, Hagai Cohen, Avigdor Scherz
Redox reactions play key roles in fundamental biological processes. The related spatial organization of donors and acceptors is assumed to undergo evolutionary optimization facilitating charge mobilization within the relevant biological context. Experimental information from submolecular functional sites is needed to understand the organization strategies and driving forces involved in the self-development of structure-function relationships. Here we exploit chemically resolved electrical measurements (CREM) to probe the atom-specific electrostatic potentials (ESPs) in artificial arrays of bacteriochlorophyll (BChl) derivatives that provide model systems for photoexcited (hot) electron donation and withdrawal...
July 27, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28439100/ventral-striatal-regulation-of-crem-mediates-impulsive-action-and-drug-addiction-vulnerability
#9
M L Miller, Y Ren, H Szutorisz, N A Warren, C Tessereau, G Egervari, A Mlodnicka, M Kapoor, B Chaarani, C V Morris, G Schumann, H Garavan, A M Goate, M J Bannon, J M Halperin, Y L Hurd
Impulsivity, a multifaceted behavioral hallmark of attention-deficit/hyperactivity disorder (ADHD), strongly influences addiction vulnerability and other psychiatric disorders that incur enormous medical and societal burdens yet the neurobiological underpinnings linking impulsivity to disease remain poorly understood. Here we report the critical role of ventral striatal cAMP-response element modulator (CREM) in mediating impulsivity relevant to drug abuse vulnerability. Using an ADHD rat model, we demonstrate that impulsive animals are neurochemically and behaviorally more sensitive to heroin and exhibit reduced Crem expression in the nucleus accumbens core...
April 25, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28368536/transcription-factor-crem-mediates-high-glucose-response-in-cardiomyocytes-and-in-a-male-mouse-model-of-prolonged-hyperglycemia
#10
Saviana A Barbati, Claudia Colussi, Lorenza Bacci, Aurora Aiello, Agnese Re, Egidio Stigliano, Andrea M Isidori, Claudio Grassi, Alfredo Pontecorvi, Antonella Farsetti, Carlo Gaetano, Simona Nanni
This study aims at investigating the epigenetic landscape of cardiomyocytes exposed to elevated glucose levels. High glucose (30 mM) for 72 hours determined some epigenetic changes in mouse HL-1 and rat differentiated H9C2 cardiomyocytes including upregulation of class I and III histone deacetylase protein levels and activity, inhibition of histone acetylase p300 activity, increase in histone H3 lysine 27 trimethylation, and reduction in H3 lysine 9 acetylation. Gene expression analysis focused on cardiotoxicity revealed that high glucose induced markers associated with tissue damage, fibrosis, and cardiac remodeling such as Nexilin (NEXN), versican, cyclic adenosine 5'-monophosphate-responsive element modulator (CREM), and adrenoceptor α2A (ADRA2)...
July 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28295478/effects-of-various-cryoprotectants-on-the-quality-of-frozen-thawed-immature-bovine-qinchuan-cattle-calf-testicular-tissue
#11
X-G Zhang, H Li, J-H Hu
To investigate the effects of different concentrations of various cryoprotectants (CPs) on the cell viability as well as expression of spermatogenesis-related genes, such as CREM, Stra8 and HSP70-2 in frozen-thawed bovine calf testicular tissue, immature bovine (Qinchuan cattle) calf testicular tissue was collected and cryopreserved in the cryomedia containing different concentrations (5%, 10%, 15% and 20%) of the following three CPs: glycerol, ethylene glycol (EG) and dimethyl sulphoxide (DMSO) respectively...
March 15, 2017: Andrologia
https://www.readbyqxmd.com/read/28281318/intracranial-myxoid-mesenchymal-tumors-with-ewsr1-creb-family-gene-fusions-myxoid-variant-of-angiomatoid-fibrous-histiocytoma-or-novel-entity
#12
Tejus A Bale, Angelica Oviedo, Harry Kozakewich, Caterina Giannini, Phani K Davineni, Keith Ligon, Sanda Alexandrescu
Intracranial myxoid mesenchymal tumor harboring EWSR1 fusions with CREB family of genes was recently described, and it resembles the myxoid variant of angiomatoid fibrous histiocytoma. We present three pediatric patients with intracranial EWSR1-rearranged myxoid mesenchymal neoplasm and provide a molecular genetic characterization of these tumors. Clinical histories and imaging results were reviewed. Histology, immunohistochemistry, EWSR1, FUS, NR4A3 fluorescence in situ hybridization (FISH), and next-generation sequencing (NGS) were performed...
March 9, 2017: Brain Pathology
https://www.readbyqxmd.com/read/28250236/tgfb1-represses-the-expression-of-sf1-and-lrh1-to-inhibit-e2-production-in-rat-lcs
#13
Qianqian Yang, Binfang Ma, Huilian Qiao, He Ma, Yuhang Dong, Liang Cao, Jing Ma, Zhen Li
Leydig cells (LCs) in the adult testis have been identified as the major sites of oestrogen production, which is crucial for mammalian germ cell differentiation. Our previous work showed that transforming growth factor beta 1 (TGFB1) inhibits estradiol (E2) secretion via down-regulating Cyp19 gene expression in mature rat (LCs). However, the mechanism remains unclear. In the present study, the effects of TGFB1 on the expression levels of steroidogenic factor 1 (SF1), liver receptor homolog 1 (LRH1), cAMP response element-binding protein (CREB) and cAMP responsive element modulator (CREM) were evaluated by Western blotting and immunofluorescence staining both in primary cultured LCs and in rat testis...
March 1, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28072703/screening-the-key-micrornas-and-transcription-factors-in-prostate-cancer-based-on-microrna-functional-synergistic-relationships
#14
Fan Feng, Jitao Wu, Zhenli Gao, Shengqiang Yu, Yuanshan Cui
Prostate cancer (PC) is a common neoplasm, and metastatic PC remains incurable. The study aims to screen key microRNAs (miRNAs) and transcription factors (TFs) involved in PC.The miRNA expression profile dataset (GSE45604) was downloaded from Gene Expression Omnibus database, including 50 PC and 10 normal specimens. Differentially expressed miRNAs (DEmiRNAs) were identified through limma package in R, and DEmiRNA-DEmiRNA co-regulation network was constructed based on the number of co-regulated target genes...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28068922/functional-changes-in-mrna-expression-and-alternative-pre-mrna-splicing-associated-with-the-effects-of-nutrition-on-apoptosis-and-spermatogenesis-in-the-adult-testis
#15
Yongjuan Guan, Guanxiang Liang, Graeme B Martin, Le Luo Guan
BACKGROUND: The effects of nutrition on testis mass in the sexually mature male have long been known, however, the cellular and molecular processes of the testis response to nutrition was not fully understood. METHODS: We tested whether the defects in spermatogenesis and increases in germ cell apoptosis in the testis that are induced by under-nutrition are associated with changes in mRNA expression and pre-mRNA alternative splicing using groups of 8 male sheep fed for a 10% increase or 10% decrease in body mass over 65 days...
January 10, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28009602/ewsr1-fusions-with-creb-family-transcription-factors-define-a-novel-myxoid-mesenchymal-tumor-with-predilection-for-intracranial-location
#16
Yu-Chien Kao, Yun-Shao Sung, Lei Zhang, Chun-Liang Chen, Sumathi Vaiyapuri, Marc K Rosenblum, Cristina R Antonescu
Recurrent gene fusions involving EWSR1 with members of the cAMP response element binding protein (CREB) family (ATF1 and CREB1) have been reported in a diverse group of tumors including angiomatoid fibrous histiocytoma (AFH), soft tissue and gastrointestinal clear cell sarcoma, primary pulmonary myxoid sarcoma, and hyalinizing clear cell carcinoma of salivary gland. We have recently encountered a group of 5 myxoid mesenchymal tumors positive for EWSR1 fusions with one of the CREB family member (ATF1, CREB1, and CREM), with histologic features distinct from any of the previously described pathologic entities...
April 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27993161/circulating-cell-free-dna-based-epigenetic-assay-can-detect-early-breast-cancer
#17
Natsue Uehiro, Fumiaki Sato, Fengling Pu, Sunao Tanaka, Masahiro Kawashima, Kosuke Kawaguchi, Masahiro Sugimoto, Shigehira Saji, Masakazu Toi
BACKGROUND: Circulating cell-free DNA (cfDNA) has recently been recognized as a resource for biomarkers of cancer progression, treatment response, and drug resistance. However, few have demonstrated the usefulness of cfDNA for early detection of cancer. Although aberrant DNA methylation in cfDNA has been reported for more than a decade, its diagnostic accuracy remains unsatisfactory for cancer screening. Thus, the aim of the present study was to develop a highly sensitive cfDNA-based system for detection of primary breast cancer (BC) using epigenetic biomarkers and digital PCR technology...
December 19, 2016: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/27987522/-interleukin-2-signaling-pathway-regulating-molecules-in-systemic-lupus-erythematosus
#18
REVIEW
Q Guo, X Y Chen, Y Su
Systemic lupus erythematosus (SLE) is a prototypic systemic autoimmune disease, which characterized by complex immunological abnormalities and multiple tissue and organ damages. The etiology and pathogenesis of SLE have not been entirely recognized. Genetic, environmental and viral infections and other factors might be related to the pathogenetic mechanisms of SLE. Interleukin-2 (IL-2) is a critical cytokine produced by T cells upon activation and is important for the generation of T regulatory cells and activation-induced cell death...
December 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27907106/brain-transcriptional-profiles-of-male-alternative-reproductive-tactics-and-females-in-bluegill-sunfish
#19
Charlyn G Partridge, Matthew D MacManes, Rosemary Knapp, Bryan D Neff
Bluegill sunfish (Lepomis macrochirus) are one of the classic systems for studying male alternative reproductive tactics (ARTs) in teleost fishes. In this species, there are two distinct life histories: parental and cuckolder, encompassing three reproductive tactics, parental, satellite, and sneaker. The parental life history is fixed, whereas individuals who enter the cuckolder life history transition from sneaker to satellite tactic as they grow. For this study, we used RNAseq to characterize the brain transcriptome of the three male tactics and females during spawning to identify gene ontology (GO) categories and potential candidate genes associated with each tactic...
2016: PloS One
https://www.readbyqxmd.com/read/27889934/vascular-cell-transcriptomic-changes-to-exercise-training-differ-directionally-along-and-between-skeletal-muscle-arteriolar-trees
#20
REVIEW
M Harold Laughlin, Hsiao T Yang, Darla L Tharp, R Scott Rector, Jaume Padilla, Douglas K Bowles
EXT-induced arteriolar adaptations in skeletal muscle are heterogeneous because of spatial variations in muscle fiber type composition and fiber recruitment patterns during exercise. The purpose of this report is to summarize a series of experiments conducted to test the hypothesis that changes in vascular gene expression are signaled by alterations in shear stress resulting from increases in blood flow, muscle fiber type composition, and fiber recruitment patterns. We also report results from a follow-up study of Ankrd23, one gene whose expression was changed by EXT...
February 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
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