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Tissue-specific network

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https://www.readbyqxmd.com/read/28944451/expression-of-mirna-26b-5p-and-its-target-trps1-is-associated-with-radiation-exposure-in-post-chernobyl-breast-cancer
#1
Christina M Wilke, Julia Hess, Sergiy V Klymenko, Vadim V Chumak, Liubov M Zakhartseva, Elena V Bakhanova, Annette Feuchtinger, Axel K Walch, Martin Selmansberger, Herbert Braselmann, Ludmila Schneider, Adriana Pitea, Julia Steinhilber, Falko Fend, Hans C Bösmüller, Horst Zitzelsberger, Kristian Unger
Ionising radiation is a well-recognised risk factor for the development of breast cancer, however, it is unknown whether radiation-specific molecular oncogenic mechanisms exist. We investigated post-Chernobyl breast cancers from radiation-exposed female clean-up workers and non-exposed controls for molecular changes. Radiation-associated alterations identified in the discovery cohort (n=38) were subsequently validated in a second cohort (n=39). Increased expression of hsa-miR-26b-5p was associated with radiation exposure in both of the cohorts...
September 25, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28942176/recombinant-brugia-malayi-pepsin-inhibitor-rbm33-exploits-host-signaling-events-to-regulate-inflammatory-responses-associated-with-lymphatic-filarial-infections
#2
Kirthika Sreenivas, Haripriya Kalyanaraman, Subash Babu, Rangarajan Badri Narayanan
Prolonged existence of filarial parasites and their molecules within the host modulate the host immune system to instigate their survival and induce inflammatory responses that contribute to disease progression. Recombinant Brugia malayi pepsin inhibitor (rBm33) modulates the host immune responses by skewing towards Th1 responses characterized by secretion of inflammatory molecules such as TNF-α, IL-6, nitric oxide (NO). Here we also specified the molecular signaling events triggered by rBm33 in peripheral blood mononuclear cells (PBMCs) of filarial endemic normals (EN)...
September 20, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28941940/mortality-prediction-in-stable-hemodialysis-patients-is-refined-by-ykl-40-a-40-kda-glycoprotein-associated-with-inflammation
#3
Georg Lorenz, Michael Schmalenberg, Stephan Kemmner, Bernhard Haller, Dominik Steubl, Dang Pham, Anita Schreiegg, Quirin Bachmann, Alina Schmidt, Sandra Haderer, Monika Huber, Susanne Angermann, Roman Günthner, Matthias Braunisch, Christine Hauser, Anna-Lena Reichelt, Julia Matschkal, Yana Suttmann, Philipp Moog, Konrad Stock, Claudius Küchle, Klaus Thürmel, Lutz Renders, Axel Bauer, Marcus Baumann, Uwe Heemann, Peter B Luppa, Christoph Schmaderer
Chronic inflammation contributes to increased mortality in hemodialysis (HD) patients. YKL-40 is a novel marker of inflammation, tissue remodeling, and highly expressed in macrophages inside vascular lesions. Elevated levels of YKL-40 have been reported for HD patients but how it integrates into the proinflammatory mediator network as a predictor of mortality remains elusive. We studied serum YKL-40, Interleukin-6 (IL-6), high-sensitivity C-reactive protein, monocyte chemotactic protein-1 (MCP-1), and interferon-gamma induced protein-10 (IP-10) in 475 chronic hemodialysis patients...
September 20, 2017: Kidney International
https://www.readbyqxmd.com/read/28941705/severe-dcm-phenotype-of-patient-harboring-rbm20-mutation-s635a-can-be-modeled-by-patient-specific-induced-pluripotent-stem-cell-derived-cardiomyocytes
#4
Katrin Streckfuss-Bömeke, Malte Tiburcy, Andrey Fomin, Xiaojing Luo, Wener Li, Claudia Fischer, Cemil Özcelik, Andreas Perrot, Samuel Sossalla, Jan Haas, Ramon Oliveira Vidal, Sabine Rebs, Sara Khadjeh, Benjamin Meder, Stefan Bonn, Wolfgang A Linke, Wolfram-Hubertus Zimmermann, Gerd Hasenfuss, Kaomei Guan
The ability to generate patient-specific induced pluripotent stem cells (iPSCs) provides a unique opportunity for modeling heart disease in vitro. In this study, we generated iPSCs from a patient with dilated cardiomyopathy (DCM) caused by a missense mutation S635A in RNA-binding motif protein 20 (RBM20) and investigated the functionality and cell biology of cardiomyocytes (CMs) derived from patient-specific iPSCs (RBM20-iPSCs). The RBM20-iPSC-CMs showed abnormal distribution of sarcomeric α-actinin and defective calcium handling compared to control-iPSC-CMs, suggesting disorganized myofilament structure and altered calcium machinery in CMs of the RBM20 patient...
September 20, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28940640/bicarbonate-recycling-by-hif-1-dependent-carbonic-anhydrase-isoforms-9-and-12-is-critical-in-maintaining-intracellular-ph-and-viability-of-nucleus-pulposus-cells
#5
Elizabeth S Silagi, Zachary R Schoepflin, Erin L Seifert, Christophe Merceron, Ernestina Schipani, Irving M Shapiro, Makarand V Risbud
Intervertebral disc degeneration is a ubiquitous condition closely linked to chronic low-back pain. The health of the avascular nucleus pulposus (NP) plays a crucial role in the development of this pathology. We tested the hypothesis that a network comprising HIF-1α, Carbonic anhydrase (CA) 9 and 12 isoforms, and sodium-coupled bicarbonate cotransporters (NBCs) buffer intracellular pH through coordinated bicarbonate recycling. Contrary to the current understanding of NP cell metabolism, analysis of metabolic-flux data from Seahorse XF analyzer showed that CO2 hydration contributes a significant source of extracellular proton production in NP cells, with a smaller input from glycolysis...
September 23, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28938566/screening-differential-circular-rna-expression-profiles-reveals-hsa_circ_0004018-is-associated-with-hepatocellular-carcinoma
#6
Liyun Fu, Ting Yao, Qingqing Chen, Xiaoyan Mo, Yaoren Hu, Junming Guo
Circular RNAs (circRNAs) have been emerged as an indispensable part of endogenous RNA network. However, the expression significance of circRNAs in hepatocellular carcinoma (HCC) is rarely revealed. The aim of this study was to determine the circRNA expression profile in HCC, and to investigate their clinical significances and relevant mechanisms for cancer progression. The global circRNA expression profile in HCC was measured by circRNA microarray. Levels of one representative circRNAs, hsa_circ_0004018, were confirmed by real-time reverse transcription-polymerase chain reaction...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28937943/multiomics-analysis-of-tumor-microenvironment-reveals-gata2-and-mirna-124-3p-as-potential-novel-biomarkers-in-ovarian-cancer
#7
Esra Gov, Medi Kori, Kazim Yalcin Arga
Ovarian cancer is a common and, yet, one of the most deadly human cancers due to its insidious onset and the current lack of robust early diagnostic tests. Tumors are complex tissues comprised of not only malignant cells but also genetically stable stromal cells. Understanding the molecular mechanisms behind epithelial-stromal crosstalk in ovarian cancer is a great challenge in particular. In the present study, we performed comparative analyses of transcriptome data from laser microdissected epithelial, stromal, and ovarian tumor tissues, and identified common and tissue-specific reporter biomolecules-genes, receptors, membrane proteins, transcription factors (TFs), microRNAs (miRNAs), and metabolites-by integration of transcriptome data with genome-scale biomolecular networks...
September 22, 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28935707/the-eutheria-specific-mir-290-mir-371-cluster-modulates-placental-growth-and-maternal-fetal-transport
#8
Alireza Paikari, Cassandra Belair, Danial Saw, Robert Blelloch
A family of vertebrate-specific microRNAs called the ESCC microRNAs arises from two genetic loci in mammals, the miR-290/miR-371 and miR-302 loci. While the miR-302 locus is found broadly among vertebrates, the miR-290/miR-371 locus is unique to eutheria (placental mammals), suggesting a role in placental development. Here, we evaluate that role. A knockin reporter for the mouse miR-290 cluster gene is expressed throughout the embryo until gastrulation at which time it becomes specifically expressed in extraembryonic tissues and the germline...
September 21, 2017: Development
https://www.readbyqxmd.com/read/28933288/stem-cell-differentiation-stage-factors-and-their-role-in-triggering-symmetry-breaking-processes-during-cancer-development-a-quantum-field-theory-model-for-reprogramming-cancer-cells-to-healthy-phenotypes
#9
Pier Mario Biava, Fabio Burigana, Roberto Germano, Philip Kurian, Claudio Verzegnassi, Giuseppe Vitiello
A long history of research has pursued the use of embryonic factors isolated during cell differentiation processes for the express purpose of transforming cancer cells back to healthy phenotypes. Recent results have clarified that the substances present at different stages of cell differentiation-which we call stem cell differentiation stage factors (SCDSFs)-are proteins with low molecular weight and nucleic acids that regulate genomic expression. The present review summarizes how these substances, taken at different stages of cellular maturation, are able to retard proliferation of many human tumor cell lines and thereby reprogram cancer cells to healthy phenotypes...
September 20, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28928808/identification-of-novel-methylated-targets-in-colorectal-cancer-by-microarray-analysis-and-construction-of-co-expression-network
#10
Dongsheng Li, Jialin Guo, Song Wang, Liangchen Zhu, Zugang Shen
The present study was conducted to investigate novel methylated targets in colorectal cancer (CRC). The mRNA expression profiles of GSE32323 in 17 cancer and non-cancerous tissues from CRC patients, as well as expression profiles of 5 CRC cell lines prior and subsequent to 5-aza-2'-deoxycytidine (5-aza-dC) treatment, were obtained from the Gene Expression Omnibus database. The differentially expressed genes (DEGs) in 5 CRC cell lines prior and subsequent to 5-aza-dC treatment were combined with the CRC-specific gene expression profiling array data...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927126/overexpression-and-proliferation-dependence-of-acyl-coa-thioesterase-11-and-13-in-lung-adenocarcinoma
#11
Jen-Yu Hung, Shyh-Ren Chiang, Kuan-Ting Liu, Ming-Ju Tsai, Ming-Shyan Huang, Jiunn-Min Shieh, Meng-Chi Yen, Ya-Ling Hsu
The metabolites of fatty acyl-Coenzyme A (CoA) and metabolic enzymes contribute to lipid biosynthesis, signal transduction, and gene transcription. Previous studies have indicated that elevated concentrations of specific free fatty acids in the plasma and overexpression of specific fatty acyl-CoA metabolic enzymes are observed in patients with lung adenocarcinoma. However, there are >30 enzymes in this metabolic network and have been fully investigated. In the present study, the expression levels of enzymes in the acyl-CoA synthetase (ACS) and acyl-CoA thioesterase (ACOT) families were analyzed from six microarray expression datasets that were collected from Gene Expression Omnibus...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28924210/kinase-inhibitor-screening-using-artificial-neural-networks-and-engineered-cardiac-biowires
#12
Genevieve Conant, Samad Ahadian, Yimu Zhao, Milica Radisic
Kinase inhibitors are often used as cancer targeting agents for their ability to prevent the activation of cell growth and proliferation signals. Cardiotoxic effects have been identified for some marketed kinase inhibitors that were not detected during clinical trials. We hypothesize that more predictive cardiac functional assessments of kinase inhibitors on human myocardium can be established by combining a high-throughput two-dimensional (2D) screening assay and a high-content three-dimensional (3D) engineered cardiac tissue (Biowire(TM)) based assay, and using human induced pluripotent stem cell-derived CMs (hiPSC-CMs)...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28924151/dna-methylomes-reveal-biological-networks-involved-in-human-eye-development-functions-and-associated-disorders
#13
María Berdasco, Antonio Gómez, Marcos J Rubio, Jaume Català-Mora, Vicente Zanón-Moreno, Miguel Lopez, Cristina Hernández, Shigeo Yoshida, Takahito Nakama, Keijiro Ishikawa, Tatsuro Ishibashi, Amina M Boubekeur, Lotfi Louhibi, Miguel A Pujana, Sergi Sayols, Fernando Setien, Dolores Corella, Carmen de Torres, Andreu Parareda, Jaume Mora, Ling Zhao, Kang Zhang, Matilde E Lleonart, Javier Alonso, Rafael Simó, Josep M Caminal, Manel Esteller
This work provides a comprehensive CpG methylation landscape of the different layers of the human eye that unveils the gene networks associated with their biological functions and how these are disrupted in common visual disorders. Herein, we firstly determined the role of CpG methylation in the regulation of ocular tissue-specification and described hypermethylation of retinal transcription factors (i.e., PAX6, RAX, SIX6) in a tissue-dependent manner. Second, we have characterized the DNA methylome of visual disorders linked to internal and external environmental factors...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28923364/tissue-specific-immunity-at-the-oral-mucosal-barrier
#14
REVIEW
Niki M Moutsopoulos, Joanne E Konkel
The oral mucosal barrier is constantly exposed to a plethora of triggers requiring immune control, including a diverse commensal microbiome, ongoing damage from mastication, and dietary and airborne antigens. However, how these tissue-specific cues participate in the training of immune responsiveness at this site is minimally understood. Moreover, the mechanisms mediating homeostatic immunity at this interface are not yet fully defined. Here we present basic aspects of the oral mucosal barrier and discuss local cues that may modulate and train local immune responsiveness...
September 8, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/28920469/the-canonical-way-to-make-a-heart-%C3%AE-catenin-and-plakoglobin-in-heart-development-and-remodeling
#15
Oksana O Piven, Cecilia L Winata
The main mediator of the canonical Wnt pathway, β-catenin, is a major effector of embryonic development, postnatal tissue homeostasis, and adult tissue regeneration. The requirement for β-catenin in cardiogenesis and embryogenesis has been well established. However, many questions regarding the molecular mechanisms by which β-catenin and canonical Wnt signaling regulate these developmental processes remain unanswered. An interesting question that emerged from our studies concerns how β-catenin signaling is modulated through interaction with other factors...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28918935/dense-intra-adipose-sympathetic-arborizations-are-essential-for-cold-induced-beiging-of-mouse-white-adipose-tissue
#16
Haochen Jiang, Xiaofan Ding, Ying Cao, Huanhuan Wang, Wenwen Zeng
Efferent signals from the central nervous system represent a key layer of regulation of white adipose tissue (WAT). However, the mechanism by which efferent neural signals control WAT metabolism remains to be better understood. Here, we exploit the volume fluorescence-imaging technique to visualize the neural arborizations in mouse inguinal WAT at single-fiber resolution. The imaging reveals a dense network of sympathetic arborizations that had been previously undetected by conventional methods, with sympathetic fibers being in close apposition to > 90% of adipocytes...
September 5, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28918332/control-of-absence-epilepsy-seizures-in-specific-relay-nuclei-of-thalamus
#17
Bing Hu, Xiaoqiang Zou, Yu Guo, Zhejia Yang, Feng Shi, Wangyuan Dong
In this paper, we used a classic basal ganglia-corticothalamic model(BGCT) to study the onset and control mechanism of absence epilepsy in specific relay nuclei (SRN) of thalamus. It was found that the seizure state may appear in SRN by turning the coupling strength -vsr and signal transmission delay τ on the route "Thalamic reticular nuclei (TRN) of thalamus ⟶ SRN". With increasing of -vsr, the seizure state appeared two times, and its onset mechanism has not been discussed in previous studies. The seizure activity can be well controlled by adjusting the activation level of the substantia nigra pars reticulata (SNr) in basal ganglia, which is a main output tissue to the corticothalamic system through two direct inhibitory pathways "SNr ⟶ SRN" and "SNr ⟶ TRN" in our model...
September 14, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28918159/identification-of-circular-rna-in-the-bombyx-mori-silk-gland
#18
Huaiyan Gan, Tieshan Feng, Yuqian Wu, Chun Liu, Qingyou Xia, Tingcai Cheng
Bombyx mori is an economically important holometabolous lepidopteran insect. In B. mori endogenous noncoding RNAs such as microRNAs (miRNAs) and Piwi-interacting RNAs play crucial biological functions in metamorphosis and sex determination. In addition, circular RNAs (circRNAs) have been recently identified as noncoding RNAs in most common model organisms and show potential as gene regulators. However, to date, there have been few studies on the circRNAs present in the B. mori genome conducted to date. Here, we identified 3916 circRNAs by deep circular transcriptome sequencing using the silk gland of B...
September 14, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28916541/a-proteomic-atlas-of-insulin-signalling-reveals-tissue-specific-mechanisms-of-longevity-assurance
#19
Luke S Tain, Robert Sehlke, Chirag Jain, Manopriya Chokkalingam, Nagarjuna Nagaraj, Paul Essers, Mark Rassner, Sebastian Grönke, Jenny Froelich, Christoph Dieterich, Matthias Mann, Nazif Alic, Andreas Beyer, Linda Partridge
Lowered activity of the insulin/IGF signalling (IIS) network can ameliorate the effects of ageing in laboratory animals and, possibly, humans. Although transcriptome remodelling in long-lived IIS mutants has been extensively documented, the causal mechanisms contributing to extended lifespan, particularly in specific tissues, remain unclear. We have characterized the proteomes of four key insulin-sensitive tissues in a long-lived Drosophila IIS mutant and control, and detected 44% of the predicted proteome (6,085 proteins)...
September 15, 2017: Molecular Systems Biology
https://www.readbyqxmd.com/read/28915785/seed-maturation-associated-transcriptional-programs-and-regulatory-networks-underlying-genotypic-difference-in-seed-dormancy-and-size-weight-in-wheat-triticum-aestivum-l
#20
Yuji Yamasaki, Feng Gao, Mark C Jordan, Belay T Ayele
BACKGROUND: Maturation forms one of the critical seed developmental phases and it is characterized mainly by programmed cell death, dormancy and desiccation, however, the transcriptional programs and regulatory networks underlying acquisition of dormancy and deposition of storage reserves during the maturation phase of seed development are poorly understood in wheat. The present study performed comparative spatiotemporal transcriptomic analysis of seed maturation in two wheat genotypes with contrasting seed weight/size and dormancy phenotype...
September 16, 2017: BMC Plant Biology
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