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https://www.readbyqxmd.com/read/28645209/genome-wide-mapping-of-in-vivo-er%C3%AE-binding-sites-in-male-mouse-efferent-ductules
#1
Guangxin Yao, Shuanggang Hu, Lu Yu, Yanfei Ru, Charlie Degui Chen, Qiang Liu, Yonglian Zhang
As an important nuclear hormone receptor, estrogen receptor alpha (ERα), which is encoded by Esr1 gene, regulates the expression of hundreds of genes in a stimulus-specific, temporal and tissue-specific fashion, mainly by binding to specific DNA sequences-estrogen response elements (EREs). As an important estrogen target tissue in males, the function of the efferent ductules relies on the presence of the ERα protein, but the underlying regulatory mechanisms are poorly illustrated. In this study, genome-wide ERα-binding sites in mouse efferent ductules were mapped by ChIP-seq...
June 22, 2017: Endocrinology
https://www.readbyqxmd.com/read/28645161/lncrna-tug1-influences-papillary-thyroid-cancer-cell-proliferation-migration-and-emt-formation-through-targeting-mir-145
#2
Hongwei Lei, Yan Gao, Xiaoying Xu
LncRNA TUG1, a tumor oncogene associated with various human cancers, has been reported to be involved in regulating various cellular processes, such as proliferation, apoptosis and invasion through targeting multiple genes. However, its biological function in thyroid cancer cells has not been elucidated. The aim of this study is to measure TUG1 expression level and evaluate its function in thyroid cancer cells. LncRNA TUG1 expression levels in thyroid cancer tissues and three thyroid cancer cell lines (the ATC cell lines SW1736 and KAT18 and the FTC cell line FTC133) were assessed by qRT-PCR and compared with that of the human normal breast epithelial cell HGC-27...
June 22, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28645112/tap63%C3%AE-and-%C3%AE-np63%C3%AE-are-regulated-by-rbm38-via-mrna-stability-and-have-an-opposing-function-in-growth-suppression
#3
Wensheng Yan, Yanhong Zhang, Xinbin Chen
The p63 gene is expressed as TAp63 from the P1 promoter and as ΔNp63 from the P2 promoter. Through alternative splicing, five TA and five ΔN isoforms (α-ε) are expressed. Isoforms α-β and δ share an identical 3' untranslated region (3'UTR) whereas isoform γ has a unique 3'UTR. Recently, we found that RBM38 RNA-binding protein is a target of p63 and RBM38 in turn regulates p63α/β expression via mRNA stability. However, it is uncertain whether p63γ has a unique biological activity and whether p63γ is regulated by RBM38...
June 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28645106/phorbol-esters-dppa-dpa-promote-furin-expression-involving-transcription-factor-cebp%C3%AE-in-neuronal-cells
#4
Jing-Si Zha, Bing-Lin Zhu, Lu Liu, Yu-Jie Lai, Yan Long, Xiao-Tong Hu, Xiao-Juan Deng, Xue-Feng Wang, Zhen Yan, Guo-Jun Chen
Using high-throughput small molecule screening targeting furin gene, we identified that phorbol esters dPPA (12-Deoxyphorbol 13-phenylacetate 20-acetate) and dPA (12-Deoxyphorbol 13-acetate) significantly increased furin protein and mRNA expression in SH-SY5Y cells. This effect was prevented by PKC (protein kinase C) inhibitor calphostin C but not Ro318220, suggesting that the C1 domain, rather than the catalytic domain of PKC plays an important role. Luciferase assay revealed that nucleotides -7925 to -7426 were sufficient to mediate dPPA/dPA enhancement of furin P1 promoter activity...
June 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28645105/a-three-gene-immunohistochemical-panel-serves-as-an-adjunct-to-clinical-staging-of-patients-with-head-and-neck-cancer
#5
Chin-Ann J Ong, Nicholas B Shannon, Stefan Mueller, Sze Min Lek, Xuan Qiu, Fui Teen Chong, Ke Li, Kelvin K N Koh, Gerald C A Tay, Thakshayeni Skanthakumar, Jacqueline S G Hwang, Tony Kiat Hon Lim, Mei Kim Ang, Daniel S W Tan, Ngian-Chye Tan, Hiang Khoon Tan, Khee Chee Soo, N Gopalakrishna Iyer
BACKGROUND: Current management of head and neck squamous cell carcinoma (HNSCC) depends on tumor staging. Despite refinements in clinical staging algorithms, outcomes remain unchanged for the last two decades. In this study, we set out to identify a small, clinically applicable molecular panel to aid prognostication of patients with HNSCC. MATERIALS AND METHODS: Data from The Cancer Genome Atlas (TCGA) was used to derive copy number aberrations and expression changes to identify putative prognostic genes...
June 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28645073/analysis-of-ldlr-variants-from-homozygous-fh-patients-carrying-multiple-mutations-in-the-ldlr-gene
#6
Long Jiang, Asier Benito-Vicente, Ling Tang, Aitor Etxebarria, Wei Cui, Kepa B Uribe, Xiao-Dong Pan, Helena Ostolaza, Shi-Wei Yang, Yu-Jie Zhou, Cesar Martin, Lu-Ya Wang
BACKGROUND AND AIMS: Familial hypercholesterolemia (FH) is an autosomal dominant disease with widespread global prevalence that partially accounts for the high prevalence of premature coronary heart disease. Although the majority of research on FH has focused on single heterozygous LDLR mutations, there have been limited reports of double LDLR mutations on the same chromosome. The aim of this study was to gain insight into the clinical consequences of the presence of multiple mutations in the LDLR gene...
June 8, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28644993/long-term-toxicity-of-surface-charged-polystyrene-nanoplastics-to-marine-planktonic-species-dunaliella-tertiolecta-and-artemia-franciscana
#7
E Bergami, S Pugnalini, M L Vannuccini, L Manfra, C Faleri, F Savorelli, K A Dawson, I Corsi
Plastic pollution has been globally recognized as a critical issue for marine ecosystems and nanoplastics constitute one of the last unexplored areas to understand the magnitude of this threat. However, current difficulties in sampling and identifying nano-sized debris make hard to assess their occurrence in marine environment. Polystyrene nanoparticles (PS NPs) are largely used as nanoplastics in ecotoxicological studies and although acute exposures have been already investigated, long-term toxicity on marine organisms is unknown...
June 15, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28644971/simultaneous-silencing-of-ghfad2-1-and-ghfatb-enhances-the-quality-of-cottonseed-oil-with-high-oleic-acid
#8
Feng Liu, Yan-Peng Zhao, Hua-Guo Zhu, Qian-Hao Zhu, Jie Sun
Cottonseed oil has become an important source of edible oil due to its significant cost advantage. However, there is a growing concern over its fatty acid composition and nutritional value. In Gossypium hirsutum, GhFAD2-1 and GhFATB encoding the microsomal oleate desaturase and palmitoyl-acyl carrier protein thioesterase, respectively, play critical roles in regulating the proportions of saturated and polyunsaturated fatty acids in cottonseed lipids. In this study, RNAi technology was used to simultaneously inhibit the expression levels of GhFAD2-1 and GhFATB to improve the quality of cottonseed oil by increasing oleic acid content...
June 15, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28644845/lipo-pge1-suppresses-collagen-production-in-human-dermal-fibroblasts-via-the-erk-ets-1-signaling-pathway
#9
Yoolhee Yang, Hee Jung Kim, Kyong-Je Woo, Daeho Cho, Sa Ik Bang
Dysregulation of collagen production contributes to various pathological processes, including tissue fibrosis as well as impaired wound healing. Lipo-prostaglandin E1 (Lipo-PGE1), a lipid microsphere-incorporated prostaglandin E1, is used as a vasodilator for the treatment of peripheral vascular diseases. Lipo-PGE1 was recently shown to enhance human dermal fibroblast (HDF) migration and in vivo wound healing. No published study has characterized the role of Lipo-PGE1 in collagen regulation in HDFs. Here, we investigated the cellular signaling mechanism by which Lipo-PGE1 regulates collagen in HDFs...
2017: PloS One
https://www.readbyqxmd.com/read/28644839/genomic-introgression-mapping-of-field-derived-multiple-anthelmintic-resistance-in-teladorsagia-circumcincta
#10
Young-Jun Choi, Stewart A Bisset, Stephen R Doyle, Kymberlie Hallsworth-Pepin, John Martin, Warwick N Grant, Makedonka Mitreva
Preventive chemotherapy has long been practiced against nematode parasites of livestock, leading to widespread drug resistance, and is increasingly being adopted for eradication of human parasitic nematodes even though it is similarly likely to lead to drug resistance. Given that the genetic architecture of resistance is poorly understood for any nematode, we have analyzed multidrug resistant Teladorsagia circumcincta, a major parasite of sheep, as a model for analysis of resistance selection. We introgressed a field-derived multiresistant genotype into a partially inbred susceptible genetic background (through repeated backcrossing and drug selection) and performed genome-wide scans in the backcross progeny and drug-selected F2 populations to identify the major genes responsible for the multidrug resistance...
June 23, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28644754/expression-of-enzymes-related-to-glucose-metabolism-in-non-small-cell-lung-cancer-and-prognosis
#11
Alexandra Giatromanolaki, Efthimios Sivridis, Stella Arelaki, Michael I Koukourakis
Purpose/Aim: Cancer cells are addicted to glycolytic anaerobic pathways, in presence or in absence of a functional Krebs' cycle (phenomenon Warburg). This metabolic predilection relies on both extracellular (impaired vascularization and oxygenation) and intracellular (oncogenic activation of genes) causes. MATERIALS AND METHODS: We investigated the expression and prognostic relevance of enzymes involved in the glucose absorption and metabolism, monocarboxylate transporter (MCT) expression, MCT1 and MCT2, pentose pathway (Glucose-6-phospahte dehydrogenase G6PD), glycogene synthesis (glycogene synthase GYS1), glycolysis (Hexokinase HXKII, phosphofructokinase PFK1, fructose biphosphate aldolase), fate of pyruvate (pyruvate dehydrogenase PDH, phosphorylated pPDH, PDH kinase PDK1, lactate dehydrogenase LDH5 and LDH1) and key Kreb's cycle enzymes (citrate synthase CSynth and isocitrate dehydrogenase IDH)...
June 23, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/28644430/the-clinical-landscape-for-sma-in-a-new-therapeutic-era
#12
REVIEW
K Talbot, E F Tizzano
Despite significant advances in basic research, the treatment of degenerative diseases of the nervous system remains one of the greatest challenges for translational medicine. The childhood onset motor neuron disorder spinal muscular atrophy (SMA) has been viewed as one of the more tractable targets for molecular therapy, due to a detailed understanding of the molecular genetic basis of the disease. In SMA, inactivating mutations in the SMN1 gene can be partially compensated for by limited expression of SMN protein from a variable number of copies of the SMN2 gene, which provides both a molecular explanation for phenotypic severity and a target for therapy...
June 23, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28644160/calcitonin-gene-related-peptide-targeted-therapies-for-migraine-and-cluster-headache-a-review
#13
Nathaniel M Schuster, Alan M Rapoport
Calcitonin gene-related peptide (CGRP) is a signaling neuropeptide released from activated trigeminal sensory afferents in headache and facial pain disorders. There are a handful of CGRP-targeted therapies currently in phase 3 studies for migraine acute treatment or prevention. Currently, 4 monoclonal antibodies targeting either the CGRP ligand or receptor are being studied for migraine prevention: ALD403 (eptinezumab), AMG 334 (erenumab), LY2951742 (galcanezumab), and TEV-48125 (fremanezumab). Meanwhile, 1 small-molecule CGRP receptor antagonist (ubrogepant, MK-1602) is currently in phase 3 studies for the acute treatment of migraine...
June 21, 2017: Clinical Neuropharmacology
https://www.readbyqxmd.com/read/28644138/comparative-analysis-of-primary-versus-relapse-refractory-dlbcl-identifies-shifts-in-mutation-spectrum
#14
Danielle M Greenawalt, Winnie S Liang, Sakina Saif, Justin Johnson, Petar Todorov, Austin Dulak, Daniel Enriquez, Rebecca Halperin, Ambar Ahmed, Vladislav Saveliev, John Carpten, David Craig, J Carl Barrett, Brian Dougherty, Michael Zinda, Stephen Fawell, Jonathan R Dry, Kate Byth
Current understanding of the mutation spectrum of relapsed/refractory (RR) tumors is limited. We performed whole exome sequencing (WES) on 47 diffuse large B cell lymphoma (DLBCL) tumors that persisted after R-CHOP treatment, 8 matched to primary biopsies. We compared genomic alterations from the RR cohort against two treatment-naïve DLBCL cohorts (n=112). While the overall number and types of mutations did not differ significantly, we identified frequency changes in DLBCL driver genes. The overall frequency of MYD88 mutant samples increased (12% to 19%), but we noted a decrease in p...
June 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28644137/analyses-of-germline-variants-associated-with-ovarian-cancer-survival-identify-functional-candidates-at-the-1q22-and-19p12-outcome-loci
#15
Dylan M Glubb, Sharon E Johnatty, Michael C J Quinn, Tracy A O'Mara, Jonathan P Tyrer, Bo Gao, Peter A Fasching, Matthias W Beckmann, Diether Lambrechts, Ignace Vergote, Digna R Velez Edwards, Alicia Beeghly-Fadiel, Javier Benitez, Maria J Garcia, Marc T Goodman, Pamela J Thompson, Thilo Dörk, Matthias Dürst, Francesmary Modungo, Kirsten Moysich, Florian Heitz, Andreas du Bois, Jacobus Pfisterer, Peter Hillemanns, Beth Y Karlan, Jenny Lester, Ellen L Goode, Julie M Cunningham, Stacey J Winham, Melissa C Larson, Bryan M McCauley, Susanne Krüger Kjær, Allan Jensen, Joellen M Schildkraut, Andrew Berchuck, Daniel W Cramer, Kathryn L Terry, Helga B Salvesen, Line Bjorge, Penny M Webb, Peter Grant, Tanja Pejovic, Melissa Moffitt, Claus K Hogdall, Estrid Hogdall, James Paul, Rosalind Glasspool, Marcus Bernardini, Alicia Tone, David Huntsman, Michelle Woo, Aocs Group, Anna deFazio, Catherine J Kennedy, Paul D P Pharoah, Stuart MacGregor, Georgia Chenevix-Trench
We previously identified associations with ovarian cancer outcome at five genetic loci. To identify putatively causal genetic variants and target genes, we prioritized two ovarian outcome loci (1q22 and 19p12) for further study. Bioinformatic and functional genetic analyses indicated that MEF2D and ZNF100 are targets of candidate outcome variants at 1q22 and 19p12, respectively. At 19p12, the chromatin interaction of a putative regulatory element with the ZNF100 promoter region correlated with candidate outcome variants...
June 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28644125/exploiting-crispr-cas-to-manipulate-enterococcus-faecalis-populations
#16
Karthik Hullahalli, Marinelle Rodrigues, Kelli L Palmer
CRISPR-Cas provides a barrier to horizontal gene transfer in prokaryotes. It was previously observed that functional CRISPR-Cas systems are absent from multidrug-resistant (MDR) Enterococcus faecalis, which only possess an orphan CRISPR locus, termed CRISPR2, lacking cas genes. It was of interest to investigate how the interplay between CRISPR-Cas genome defense and antibiotic selection for mobile genetic elements shapes E. faecalis populations. Here, we demonstrate that CRISPR2 can be reactivated for genome defense in MDR strains...
June 23, 2017: ELife
https://www.readbyqxmd.com/read/28644109/the-timing-of-gigantea-expression-during-day-night-cycles-varies-with-the-geographical-origin-of-arabidopsis-accessions
#17
Amaury de Montaigu, George Coupland
Latitudinal clines in circadian rhythms have consistently been described in various plant species, with the most recent examples appearing in soybean cultivars and in monkey flower natural populations. These latitudinal clines provide evidence that natural variation in circadian rhythms is adaptive, but it is still unclear what adaptive benefits this variation confers, particularly because circadian rhythms are not usually measured in day/night conditions that reflect those experienced by organisms in nature...
June 23, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28644012/sigma-2-receptor-tmem97-agonists-produce-long-lasting-anti-neuropathic-pain-effects-in-mice
#18
James J Sahn, Galo L Mejia, Pradipta R Ray, Stephen F Martin, Theodore John Price
Neuropathic pain is an important medical problem with few effective treatments. The sigma 1 receptor (σ1R) is a potential target for neuropathic pain therapeutics, and antagonists for this receptor are effective in preclinical models and are currently in phase II clinical trials. Relatively little is known about the σ2R, which has recently been identified as transmembrane protein 97 (Tmem97). We generated a series of σ1R and σ2R/Tmem97 agonists and antagonists and tested them for efficacy in the mouse spared nerve injury (SNI) model...
June 23, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28643952/asn194lys-mutation-in-rvg29-peptide-increases-gfp-transgene-delivery-by-endocytosis-to-neuroblastoma-and-astrocyte-cells
#19
Sheila Adela Villa-Cedillo, Humberto Rodríguez-Rocha, Laura Mireya Zavala-Flores, Roberto Montes-de-Oca-Luna, Aracely García-García, Maria de Jesus Loera-Arias, Odila Saucedo-Cárdenas
OBJECTIVES: A cell-penetrating peptide-based delivery system could target specific types of cells for therapeutic genes delivery. To increase the gene delivery efficiency into neuronal phenotype cells, we introduced an Asn194Lys mutation to RVG29 peptide derived from rabies virus glycoprotein and added a nuclear localization signal to enhance its nuclear import. METHODS: Mutant RVG or wild-type RVG peptide, a karyophilic peptide (KP) and a plasmid encoding green fluorescent protein (pGL) were bound by electrostatic charges to form four different kinds of RVG complexes...
June 23, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28643897/a-novel-amino-acid-substitution-trp574arg-in-als-confers-broad-resistance-to-als-inhibiting-herbicides-in-crabgrass-digitaria-sanguinalis
#20
Jian Li, Mei Li, Xingxiang Gao, Feng Fang
BACKGROUND: Crabgrass (Digitaria sanguinalis) is an annual monocotyledonous weed. In recent years, field applications of nicosulfuron have been ineffective in controlling crabgrass populations in Shandong Province, China. To investigate the resistance mechanisms to nicosulfuron in crabgrass populations, the acetolactate synthase (ALS) gene fragment covering known resistance-confering mutation sites was amplified and sequenced. RESULTS: Dose-response experiments suggested that the resistant population SD13 (R) was highly resistant to nicosulfuron (resistance index R/S = 43...
June 23, 2017: Pest Management Science
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