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https://www.readbyqxmd.com/read/27922090/mir-146a-mediated-suppression-of-the-inflammatory-response-in-human-adipocytes
#1
Julian Roos, Eveliina Enlund, Jan-Bernd Funcke, Daniel Tews, Karlheinz Holzmann, Klaus-Michael Debatin, Martin Wabitsch, Pamela Fischer-Posovszky
The obesity-associated inflammation of white adipose tissue (WAT) is one of the factors leading to the development of related diseases such as insulin resistance and liver steatosis. Recently, microRNAs (miRNAs) were identified as important regulators of WAT functions. Herein, we cultured human Simpson-Golabi-Behmel syndrome (SGBS) adipocytes with macrophage-conditioned medium (MacCM) and performed an Affimetrix miRNA array to identify miRNAs differentially expressed under inflammatory conditions. We identified 24 miRNAs differentially expressed upon inflammation in human adipocytes and miR-146a was the most up-regulated miRNA species...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27920521/celastrol-nanomicelles-attenuate-cytokine-secretion-in-macrophages-and-inhibit-macrophage-induced-corneal-neovascularization-in-rats
#2
Zhanrong Li, Jingguo Li, Lei Zhu, Ying Zhang, Junjie Zhang, Lin Yao, Dan Liang, Liya Wang
The aim of the present study was to investigate the inhibitory effects of celastrol-loaded nanomicelles (CNMs) on activated macrophage-induced corneal neovascularization (CNV) in rats and cytokine secretion in macrophages. Using an angiogenesis assay in vitro, we detected the effects of CNMs on human umbilical vein endothelial cell (HUVEC) migration and invasion. In addition, the expression levels of cytokines secreted from hypoxia-induced macrophages were assessed through cytokine array analysis. The expression of hypoxia-inducible factors-1α (HIF-1α), nuclear factor-kappa B p65 (NF-κB p65), phospho-nuclear factor-kappa B p65 (phospho-NF-κB p65), p38 mitogen-activated protein kinase (p38 MAPK), phospho-p38 MAPK, extracellular signal-regulated kinase 1/2 (ERK1/2), and phospho-ERK1/2 was analyzed by western blotting...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27920204/studies-on-the-detection-expression-glycosylation-dimerization-and-ligand-binding-properties-of-mouse-siglec-e
#3
Shoib Siddiqui, Flavio Schwarz, Stevan Springer, Zahra Khedri, Hai Yu, Lingquan Deng, Andrea Verhagen, Yuko Naito-Matsui, Weiping Jiang, Daniel Kim, Jie Zhou, Beibei Ding, Xi Chen, Nissi Varki, Ajit Varki
CD33-related Siglecs are a family of proteins widely expressed on innate immune cells. Binding of sialylated glycans or other ligands triggers signals that inhibit or activate inflammation. Immunomodulation by Siglecs has been extensively studied, but relationships between structure and functions are poorly explored. Here we present new data relating the structure and function of Siglec-E, the major CD33-related Siglec expressed on mouse neutrophils, monocytes, macrophages, and dendritic cells. We generated nine new rat monoclonal antibodies specific to mouse Siglec-E, with no cross-reactivity to Siglec-F...
December 5, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27918831/induction-of-chemokine-secretion-and-monocyte-migration-by-human-choroidal-melanocytes-in-response-to-proinflammatory-cytokines
#4
Tina Jehs, Carsten Faber, Maja S Udsen, Martine J Jager, Simon J Clark, Mogens H Nissen
Purpose: To determine to which extent inflammatory cytokines affect chemokine secretion by primary human choroidal melanocytes (HCMs), their capacity to attract monocytes, and whether HCMs are able to influence the proliferation of activated T cells. Methods: Primary cultures of HCMs were established from eyes of 13 donors. Human choroidal melanocytes were stimulated with IFN-γ and TNF-α or with supernatant from activated T cells (T-cell-conditioned media [TCM])...
December 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27918551/hepatocarcinogenesis-in-transgenic-mice-carrying-hepatitis-b-virus-pre-s-s-gene-with-the-sw172-mutation
#5
M-W Lai, K-H Liang, W-R Lin, Y-H Huang, S-F Huang, T-C Chen, C-T Yeh
Hepatitis B virus (HBV) carrying the rtA181T/sW172* mutation conferred cross-resistance to adefovir and lamivudine. Cell-based and clinical studies indicated that HBV carrying this mutation had an increased oncogenic potential. Herein, we created transgenic mouse models to study the oncogenicity of the HBV pre-S/S gene containing this mutation. Transgenic mice were generated by transfer of the HBV pre-S/S gene together with its own promoter into C57B6 mice. Four lines of mice were created. Two of them carried wild-type gene and produced high and low levels of HBV surface antigen (HBsAg) (TgWT-H and L)...
December 5, 2016: Oncogenesis
https://www.readbyqxmd.com/read/27918464/checkpoints-to-the-brain-directing-myeloid-cell-migration-to-the-central-nervous-system
#6
REVIEW
Meredith Harrison-Brown, Guo-Jun Liu, Richard Banati
Myeloid cells are a unique subset of leukocytes with a diverse array of functions within the central nervous system during health and disease. Advances in understanding of the unique properties of these cells have inspired interest in their use as delivery vehicles for therapeutic genes, proteins, and drugs, or as "assistants" in the clean-up of aggregated proteins and other molecules when existing drainage systems are no longer adequate. The trafficking of myeloid cells from the periphery to the central nervous system is subject to complex cellular and molecular controls with several 'checkpoints' from the blood to their destination in the brain parenchyma...
December 2, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27917915/blood-hsa-mir-122-5p-and-hsa-mir-885-5p-levels-associate-with-fatty-liver-and-related-lipoprotein-metabolism-the-young-finns-study
#7
Emma Raitoharju, Ilkka Seppälä, Leo-Pekka Lyytikäinen, Jorma Viikari, Mika Ala-Korpela, Pasi Soininen, Antti J Kangas, Melanie Waldenberger, Norman Klopp, Thomas Illig, Jaana Leiviskä, Britt-Marie Loo, Niku Oksala, Mika Kähönen, Nina Hutri-Kähönen, Reijo Laaksonen, Olli Raitakari, Terho Lehtimäki
MicroRNAs are involved in disease development and may be utilized as biomarkers. We investigated the association of blood miRNA levels and a) fatty liver (FL), b) lipoprotein and lipid pathways involved in liver lipid accumulation and c) levels of predicted mRNA targets in general population based cohort. Blood microRNA profiling (TaqMan OpenArray), genome-wide gene expression arrays and nuclear magnetic resonance metabolomics were performed for Young Finns Study participants aged 34-49 years (n = 871)...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917884/ossgl-a-novel-pleiotropic-stress-related-gene-enhances-grain-length-and-yield-in-rice
#8
Manling Wang, Xuedan Lu, Guoyun Xu, Xuming Yin, Yanchun Cui, Lifang Huang, Pedro S C F Rocha, Xinjie Xia
Abiotic stress seriously affects the yield of rice (Oryza sativa L.). Grain yield in rice is multiplicatively determined by the number of panicles, number of grains per panicle, and grain weight. Here, we describe the molecular and functional characterization of STRESS_tolerance and GRAIN_LENGTH (OsSGL), a rice gene strongly up-regulated by a wide spectrum of abiotic stresses. OsSGL encodes a putative member of the DUF1645 protein family of unknown function. Overexpression of OsSGL significantly altered certain development processes greatly and positively affecting an array of traits in transgenic rice plants, including increased grain length, grain weight and grain number per panicle, resulting in a significant increase in yield...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917357/enhancing-rock-phosphate-integration-rate-for-fast-bio-transformation-of-cow-dung-waste-paper-mixtures-to-organic-fertilizer
#9
F O Unuofin, M Siswana, E N Cishe
Rock phosphate (RP) addition in cow-dung waste-paper mixtures at rates above 2% P has been reported to increase the rate of bio-transformation and humification of organic waste mixtures during vermicomposting to produce organic fertilizer for organic farming. However, the optimization of RP for vermicomposting was not established. The objective of this study was to determine the optimal amount of RP integration rates for effective bio-transformation of cow-dung waste-paper mixtures. Arrays of RP integration degrees (0, 0...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27916491/gene-expression-profiling-to-identify-the-toxicities-and-potentially-relevant-human-disease-outcomes-associated-with-environmental-heavy-metal-exposure
#10
Hesham M Korashy, Ibraheem M Attafi, Konrad S Famulski, Saleh A Bakheet, Mohammed M Hafez, Abdulaziz M S Alsaad, Abdul Rahman M Al-Ghadeer
Heavy metals are the most commonly encountered toxic substances that increase susceptibility to various diseases after prolonged exposure. We have previously shown that healthy volunteers living near a mining area had significant contamination with heavy metals associated with significant changes in the expression of some detoxifying genes, xenobiotic metabolizing enzymes, and DNA repair genes. However, alterations of most of the molecular target genes associated with diseases are still unknown. Thus, the aims of this study were to (a) evaluate the gene expression profile and (b) identify the toxicities and potentially relevant human disease outcomes associated with long-term human exposure to environmental heavy metals in mining area using microarray analysis...
December 1, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27916294/high-expression-of-phgdh-predicts-poor-prognosis-in-non-small-cell-lung-cancer
#11
Jinhong Zhu, Jianqun Ma, Xudong Wang, Tianjiao Ma, Shu Zhang, Wei Wang, Xiaoyu Zhou, Jiahai Shi
Tumors have exceptionally high demands for energy and anabolism because of their rapid growth. The de novo serine synthesis pathway initiated by phosphoglycerate dehydrogenase (PHGDH) has been recognized as a hallmark of metabolic adaption in carcinogenesis. The oncogenic role and prognostic value of PHGDH have been investigated in multiple cancer types, including breast cancer, melanoma, cervical cancer, and colon cancer. Due to the importance of PHGDH in cancer, we attempted to determine the clinical significance of PHGDH in 319 patients with non-small cell lung cancer (NSCLC)...
December 2016: Translational Oncology
https://www.readbyqxmd.com/read/27915346/mir-181a-targets-phlpp2-to-augment-akt-signaling-and-regulate-proliferation-and-apoptosis-in-human-keloid-fibroblasts
#12
Zhen Rang, Zong-Yang Wang, Qiu-Yu Pang, You-Wei Wang, Ge Yang, Fan Cui
BACKGROUND/AIMS: Keloids are fibrous overgrowths induced by cutaneous injury. MicroRNAs (miRNAs) have recently emerged as post-transcriptional gene repressors and participants in a diverse array of pathophysiological processes leading to skin disease. The purpose of the current study was to explore the precise functions of miR-181a in human keloid development and the underlying mechanisms. METHODS: A miRNA microarray analysis was performed to compare expression profiles between keloid and normal skin tissues...
December 5, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27913905/proteins-immunologically-related-to-map65-1-accumulate-and-localize-differentially-during-bud-development-in-vitis-vinifera-l
#13
Luigi Parrotta, Claudia Faleri, Mauro Cresti, Giampiero Cai
Various arrays of microtubules are present throughout the plant cell cycle and are involved in distinct functions. Microtubule-associated proteins (MAPs) regulate microtubule dynamics by acting as stabilizers, destabilizers, and promoters of microtubule dynamics. The MAP65 family is a specific group of cross-linkers required for structural maintenance of microtubules. In plants, different isoforms of MAP65 are differentially expressed according to their developmental program. In this work, we analyzed the differential distribution of proteins immunologically related to MAP65-1 during bud development in grapevine (Vitis vinifera L...
December 2, 2016: Protoplasma
https://www.readbyqxmd.com/read/27913643/biogenesis-and-transcriptional-regulation-of-long-noncoding-rnas-in-the-human-immune-system
#14
REVIEW
Charles F Spurlock, Philip S Crooke, Thomas M Aune
The central dogma of molecular biology states that DNA makes RNA makes protein. Discoveries over the last quarter of a century found that the process of DNA transcription into RNA gives rise to a diverse array of functional RNA species, including genes that code for protein and noncoding RNAs. For decades, the focus has been on understanding how protein-coding genes are regulated to influence protein expression. However, with the completion of the Human Genome Project and follow-up ENCODE data, it is now appreciated that only 2-3% of the genome codes for protein-coding gene exons and that the bulk of the transcribed genome, apart from ribosomal RNAs, is at the level of noncoding RNA genes...
December 15, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27912315/genetics-of-infectious-and-inflammatory-diseases-overlapping-discoveries-from-association-and-exome-sequencing-studies
#15
David Langlais, Nassima Fodil, Philippe Gros
Genome technologies have defined a complex genetic architecture in major infectious, inflammatory, and autoimmune disorders. High density marker arrays and Immunochips have powered genome-wide association studies (GWAS) that have mapped nearly 450 genetic risk loci in 22 major inflammatory diseases, including a core of common genes that play a central role in pathological inflammation. Whole-exome and whole-genome sequencing have identified more than 265 genes in which mutations cause primary immunodeficiencies and rare forms of severe inflammatory bowel disease...
December 1, 2016: Annual Review of Immunology
https://www.readbyqxmd.com/read/27911798/stretchable-multichannel-antennas-in-soft-wireless-optoelectronic-implants-for-optogenetics
#16
Sung Il Park, Gunchul Shin, Jordan G McCall, Ream Al-Hasani, Aaron Norris, Li Xia, Daniel S Brenner, Kyung Nim Noh, Sang Yun Bang, Dionnet L Bhatti, Kyung-In Jang, Seung-Kyun Kang, Aaron D Mickle, Gregory Dussor, Theodore J Price, Robert W Gereau, Michael R Bruchas, John A Rogers
Optogenetic methods to modulate cells and signaling pathways via targeted expression and activation of light-sensitive proteins have greatly accelerated the process of mapping complex neural circuits and defining their roles in physiological and pathological contexts. Recently demonstrated technologies based on injectable, microscale inorganic light-emitting diodes (μ-ILEDs) with wireless control and power delivery strategies offer important functionality in such experiments, by eliminating the external tethers associated with traditional fiber optic approaches...
November 28, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27910033/cytogenetic-resources-and-information
#17
Etienne De Braekeleer, Jean-Loup Huret, Hossain Mossafa, Philippe Dessen
The main databases devoted stricto sensu to cancer cytogenetics are the "Mitelman Database of Chromosome Aberrations and Gene Fusions in Cancer" ( http://cgap.nci.nih.gov/Chromosomes/Mitelman ), the "Atlas of Genetics and Cytogenetics in Oncology and Haematology" ( http://atlasgeneticsoncology.org ), and COSMIC ( http://cancer.sanger.ac.uk/cosmic ).However, being a complex multistep process, cancer cytogenetics are broadened to "cytogenomics," with complementary resources on: general databases (nucleic acid and protein sequences databases; cartography browsers: GenBank, RefSeq, UCSC, Ensembl, UniProtKB, and Entrez Gene), cancer genomic portals associated with recent international integrated programs, such as TCGA or ICGC, other fusion genes databases, array CGH databases, copy number variation databases, and mutation databases...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27909100/lhx2-interacts-with-the-nurd-complex-and-regulates-cortical-neuron-subtype-determinants-fezf2-and-sox11
#18
Bhavana Muralidharan, Zeba Khatri, Upasana Maheshwari, Ritika Gupta, Basabdatta Roy, Saurabh J Pradhan, Krishanpal Karmodiya, Hari Padmanabhan, Ashwin Shetty, Chinthapalli Balaji, Ullas Kolthur-Seetharam, Jeffrey D Macklis, Sanjeev Galande, Shubha Tole
: In the developing cerebral cortex, sequential transcriptional programs take neuroepithelial cells from proliferating progenitors to differentiated neurons with unique molecular identities. The regulatory changes that occur in the chromatin of the progenitors are not well understood. During deep layer neurogenesis, we show that transcription factor Lhx2 binds to distal regulatory elements of Fezf2 and Sox11, critical determinants of neuron subtype identity in the mouse neocortex. We demonstrate that Lhx2 binds to the NuRD histone remodeling complex subunits LSD1, HDAC2, and RBBP4, which are proximal regulators of the epigenetic state of chromatin...
December 1, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27908234/sustained-early-disruption-of-mitochondrial-function-contributes-to-arsenic-induced-prostate-tumorigenesis
#19
B Singh, M Kulawiec, K M Owens, A Singh, K K Singh
Arsenic is a well-known human carcinogen that affects millions of people worldwide, but the underlying mechanisms of carcinogenesis are unclear. Several epidemiological studies have suggested increased prostate cancer incidence and mortality due to exposure to arsenic. Due to lack of an animal model of arsenic-induced carcinogenesis, we used a prostate epithelial cell culture model to identify a role for mitochondria in arsenic-induced prostate cancer. Mitochondrial morphology and membrane potential was impacted within a few hours of arsenic exposure of non-neoplastic prostate epithelial cells...
October 2016: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/27905512/plant-phenolic-volatiles-inhibit-quorum-sensing-in-pectobacteria-and-reduce-their-virulence-by-potential-binding-to-expi-and-expr-proteins
#20
Janak Raj Joshi, Netaly Khazanov, Hanoch Senderowitz, Saul Burdman, Alexander Lipsky, Iris Yedidia
Quorum sensing (QS) is a population density-dependent regulatory system in bacteria that couples gene expression to cell density through accumulation of diffusible signaling molecules. Pectobacteria are causal agents of soft rot disease in a range of economically important crops. They rely on QS to coordinate their main virulence factor, production of plant cell wall degrading enzymes (PCWDEs). Plants have evolved an array of antimicrobial compounds to anticipate and cope with pathogens, of which essential oils (EOs) are widely recognized...
December 1, 2016: Scientific Reports
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