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https://www.readbyqxmd.com/read/28202124/-effect-of-heat-shock-factor-1-on-airway-hyperresponsiveness-and-airway-inflammation-in-mice-with-allergic-asthma
#1
Jing Wang, Li-Hong Xin, Wei Cheng, Zhen Wang, Wen Zhang
OBJECTIVE: To investigate the effect of heat shock factor 1 (HSF1) on airway hyperresponsiveness and airway inflammation in mice with asthma and possible mechanisms. METHODS: A total of 36 mice were randomly divided into four groups: control, asthma, HSF1 small interfering RNA negative control (siHSF1-NC), and siHSF1 intervention (n=9 each). Ovalbumin (OVA) sensitization and challenge were performed to induce asthma in the latter three groups. The mice in the siHSF1-NC and siHSF1 groups were treated with siHSF1-NC and siHSF1, respectively...
February 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28196003/antiviral-activity-safety-and-pharmacokinetics-of-bictegravir-as-10-day-monotherapy-in-hiv-1-infected-adults
#2
Joel E Gallant, Melanie Thompson, Edwin DeJesus, Gene W Voskuhl, Xuelian Wei, Heather Zhang, Kirsten White, Andrew Cheng, Erin Quirk, Hal Martin
OBJECTIVE: to evaluate antiviral activity, safety, and pharmacokinetics of short-term monotherapy with bictegravir (bic), a novel, potent hiv integrase strand-transfer inhibitor (insti) DESIGN:: Phase 1b, randomized, double-blinded, adaptive, sequential cohort, placebo-controlled study METHODS:: HIV-infected adults not taking antiretroviral therapy were randomized to receive BIC (5, 25, 50, or 100 mg) or placebo once daily for 10 days. Primary endpoint was time-weighted average change from baseline to Day 11 (DAVG11) for plasma HIV-1 RNA...
February 8, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28174021/biogenesis-and-function-of-ago-associated-rnas
#3
REVIEW
Iben Daugaard, Thomas Birkballe Hansen
Numerous sophisticated high-throughput sequencing technologies have been developed over the past decade, and these have enabled the discovery of a diverse catalog of small non-coding (nc)RNA molecules that function as regulatory entities by associating with Argonaute (Ago) proteins. MicroRNAs (miRNAs) are currently the best-described class of post-transcriptional regulators that follow a specific biogenesis pathway characterized by Drosha/DGCR8 and Dicer processing. However, more exotic miRNA-like species that bypass particular steps of the canonical miRNA biogenesis pathway continue to emerge, with one of the most recent additions being the agotrons, which escape both Drosha/DGCR8- and Dicer-processing...
February 4, 2017: Trends in Genetics: TIG
https://www.readbyqxmd.com/read/28139520/effect-of-15-deoxy-%C3%AE-12-14-prostaglandin-j2nanocapsules-on-inflammation-and-bone-regeneration-in-a-rat-bone-defect-model
#4
Qi Tang, Li-Li Chen, Fen Wei, Wei-Lian Sun, Li-Hong Lei, Pei-Hui Ding, Jing-Yi Tan, Xiao-Tao Chen, Yan-Min Wu
BACKGROUND: 15-Deoxy-Δ12,14-prostaglandin J2 (15d-PGJ2), one of the major metabolites from prostaglandin D2 in arachidonic acid metabolic pathway, has potential anti-inflammatory properties. The objective of this study was to explore the effects of 15d-PGJ2-loaded poly(D,L-lactide-co-glycolide) nanocapsules (15d-PGJ2-NC) on inflammatory responses and bone regeneration in local bone defect. METHODS: The study was conducted on 96 Wistar rats from June 2014 to March 2016...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28107222/romidepsin-induced-hiv-1-viremia-during-effective-art-contains-identical-viral-sequences-with-few-deleterious-mutations
#5
Anni Winckelmann, Kirston Barton, Bonnie Hiener, Timothy E Schlub, Wei Shao, Thomas A Rasmussen, Lars Østergaard, Ole S Søgaard, Martin Tolstrup, Sarah Palmer
OBJECTIVE: To investigate the origin of the HIV-1 viremia induced by the latency-reversing agent romidepsin. DESIGN: Six individuals on suppressive antiretroviral therapy received romidepsin administered intravenously once weekly for three consecutive weeks. CD4+ T-cells were obtained at baseline, following the second and third romidepsin infusion, and 10 weeks after the final romidepsin treatment. METHODS: Single-genome sequencing of the env region was used to genetically characterize the virus from proviral DNA, the transcribed cell-associated RNA and the plasma RNA pool...
January 19, 2017: AIDS
https://www.readbyqxmd.com/read/28105147/fgfr3-silencing-by-sirna-inhibits-invasion-of-a549-cells
#6
Yuhua Li, Xiguang Liu, Hongjun Zhang, Tao Jiang, Wenjing Xiao, Shufen Zhao, Xiaoyun Yu, Fanjie Han
The present study identified that fibroblast growth factor receptor 3 (FGFR3) was significantly upregulated in bone metastasis of lung adenocarcinoma. RNA interference (RNAi) is a powerful approach for treating a wide range of human diseases, including cancer, through downregulating the expression of selected genes. In the present study, the invasiveness of A549 cells cultured in vitro was altered by small interfering (si)RNA targeting FGFR3, and the regulatory effect of silencing FGFR3 on the expression levels of E-cadherin and matrix metalloproteinase (MMP)9 was investigated...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105140/role-of-mir-145-in-chronic-constriction-injury-in-rats
#7
Xiaolin Pang, Yuanzhang Tang, Dongya Zhang
The present study aims to investigate the effects and underlying mechanisms of miRNA-145 (miR-145) in rat models of chronic constriction injury (CCI). Rats were randomly divided into control, sham, CCI, agomiRNA (agomiR)-normal control (NC) and agomiR-145 groups (n=25 in each group); in addition, 30 rats with CCI were divided into small hairpin (sh)RNA-NC and shRNA-ras responsive element binding protein 1 (RREB1) groups. Paw withdrawal thermal latency (PWTL) and paw withdrawal mechanical threshold (PWMT) were detected...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28099408/multiphenotype-association-study-of-patients-randomized-to-initiate-antiretroviral-regimens-in-aids-clinical-trials-group-protocol-a5202
#8
Anurag Verma, Yuki Bradford, Shefali S Verma, Sarah A Pendergrass, Eric S Daar, Charles Venuto, Gene D Morse, Marylyn D Ritchie, David W Haas
BACKGROUND: High-throughput approaches are increasingly being used to identify genetic associations across multiple phenotypes simultaneously. Here, we describe a pilot analysis that considered multiple on-treatment laboratory phenotypes from antiretroviral therapy-naive patients who were randomized to initiate antiretroviral regimens in a prospective clinical trial, AIDS Clinical Trials Group protocol A5202. PARTICIPANTS AND METHODS: From among 5 9545 294 polymorphisms imputed genome-wide, we analyzed 2544, including 2124 annotated in the PharmGKB, and 420 previously associated with traits in the GWAS Catalog...
March 2017: Pharmacogenetics and Genomics
https://www.readbyqxmd.com/read/28097046/molecular-classification-of-tissue-from-a-transformed-non-hogkin-s-lymphoma-case-with-unexpected-long-time-remission
#9
Julie Støve Bødker, Marianne Tang Severinsen, Tarec Christoffer El-Galaly, Rasmus Froberg Brøndum, Maria Bach Laursen, Steffen Falgreen, Mette Nyegaard, Alexander Schmitz, Lasse Hjort Jakobsen, Anna Amanda Schönherz, Hanne Due, Linn Reinholdt, Martin Bøgsted, Karen Dybkær, Hans Erik Johnsen
BACKGROUND: The concept of precision medicine in cancer includes individual molecular studies to predict clinical outcomes. In the present N = 1 case we retrospectively have analysed lymphoma tissue by exome sequencing and global gene expression in a patient with unexpected long-term remission following relaps. The goals were to phenotype the diagnostic and relapsed lymphoma tissue and evaluate its pattern. Furthermore, to identify mutations available for targeted therapy and expression of genes to predict specific drug effects by resistance gene signatures (REGS) for R-CHOP as described at http://www...
2017: Experimental Hematology & Oncology
https://www.readbyqxmd.com/read/28057258/nonsegmented-negative-sense-rna-viruses-structural-data-bring-new-insights-into-nucleocapsid-assembly
#10
REVIEW
M Jamin, F Yabukarski
Viruses with a nonsegmented negative-sense RNA genome (NNVs) include important human pathogens as well as life-threatening zoonotic viruses. These viruses share a common RNA replication complex, including the genomic RNA and three proteins, the nucleoprotein (N), the phosphoprotein (P), and the RNA-dependent RNA polymerase (L). During genome replication, the RNA polymerase complex first synthesizes positive-sense antigenomes, which in turn serve as template for the production of negative-sense progeny genomes...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/28057128/-expression-and-function-of-long-intergenic-non-protein-coding-rna-regulator-of-reprogramming-in-high-grade-ovarian-serous-cancer
#11
H H Jiang, Y H Lou, X Y Wang, Y Han, Z M Cui
Objective: To investigate the expression of long intergenic non-protein coding RNA-regulator of reprogramming (Linc-ROR) in high-grade ovarian serous cancer, and explore the relationship between Linc-ROR expression and biological function of high-grade ovarian serous cancer. Methods: A total of 34 high-grade ovarian serous cancer tissue samples and 19 normal fallopian tube tissue samples were collected between June 2014 and February 2016. Real-time reverse transcription (RT)-PCR was used to detect the Linc-ROR mRNA expression in different samples...
December 25, 2016: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28056773/transcriptomic-analysis-of-human-norovirus-ns1-2-protein-highlights-a-multifunctional-role-in-murine-monocytes
#12
Zabeen Lateef, Gregory Gimenez, Estelle S Baker, Vernon K Ward
BACKGROUND: The GII.4 Sydney 2012 strain of human norovirus (HuNoV) is a pandemic strain that is responsible for the majority of norovirus outbreaks in healthcare settings. The function of the non-structural (NS)1-2 protein from HuNoV is unknown. RESULTS: In silico analysis of human norovirus NS1-2 protein showed that it shares features with the murine NS1-2 protein, including a disordered region, a transmembrane domain and H-box and NC sequence motifs. The proteins also contain caspase cleavage and phosphorylation sites, indicating that processing and phosphorylation may be a conserved feature of norovirus NS1-2 proteins...
January 5, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28051259/microrna-145-inhibits-tumour-growth-and-metastasis-in-osteosarcoma-by-targeting-cyclin-dependent-kinase-cdk6
#13
Y Li, J Liu, Z-Z Liu, W-B Wei
OBJECTIVE: Osteosarcoma (OS) is reported to be one of the most familiar forms of the primary malignant tumor to adolescents and adults, which is usually found in their long bones. Evidence and data have shown that abnormality in micro-RNA expression is closely related to tumorigenesis. The aim of this study is to investigate the expression, function and underlying mechanism of miR-145 in OS. MATERIALS AND METHODS: MiR-145 expression in tumor tissues of patients and cell lines were detected by SYBR green qPCR...
December 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28034301/mechanistic-differences-between-hiv-1-and-siv-nucleocapsid-proteins-and-cross-species-hiv-1-genomic-rna-recognition
#14
Klara Post, Erik D Olson, M Nabuan Naufer, Robert J Gorelick, Ioulia Rouzina, Mark C Williams, Karin Musier-Forsyth, Judith G Levin
BACKGROUND: The nucleocapsid (NC) domain of HIV-1 Gag is responsible for specific recognition and packaging of genomic RNA (gRNA) into new viral particles. This occurs through specific interactions between the Gag NC domain and the Psi packaging signal in gRNA. In addition to this critical function, NC proteins are also nucleic acid (NA) chaperone proteins that facilitate NA rearrangements during reverse transcription. Although the interaction with Psi and chaperone activity of HIV-1 NC have been well characterized in vitro, little is known about simian immunodeficiency virus (SIV) NC...
December 29, 2016: Retrovirology
https://www.readbyqxmd.com/read/28029658/the-inhibition-of-45a-ncrna-expression-reduces-tumor-formation-affecting-tumor-nodules-compactness-and-metastatic-potential-in-neuroblastoma-cells
#15
Ilaria Penna, Arianna Gigoni, Delfina Costa, Serena Vella, Debora Russo, Alessandro Poggi, Federico Villa, Antonella Brizzolara, Claudio Canale, Andrea Mescola, Antonio Daga, Claudio Russo, Mario Nizzari, Tullio Florio, Paola Menichini, Aldo Pagano
We recently reported the in vitro over-expression of 45A, a RNA polymerase III-transcribed non-coding (nc)RNA, that perturbs the intracellular content of FE65L1 affecting cell proliferation rate, short-term response to genotoxic stress, substrate adhesion capacity and, ultimately, increasing the tumorigenic potential of human neuroblastoma cells. In this work, to deeply explore the mechanism by which 45A ncRNA contributes to cancer development, we targeted in vitro and in vivo 45A levels by the stable overexpression of antisense 45A RNA...
January 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/28000860/downregulation-of-the-%C3%AE-1-adrenergic-receptor-in-the-myocardium-results-in-insensitivity-to-metoprolol-and-reduces-blood-pressure-in-spontaneously-hypertensive-rats
#16
Yun Huang, Xiao-Li Liu, Jia Wen, Li-Hua Huang, Yao Lu, Ru-Jia Miao, Xing Liu, Ying Li, Xiao-Wei Xing, Hong Yuan
The β1‑adrenergic receptor (AR) is the primary β‑AR subtype in the heart and is the target of metoprolol (Met), which is commonly used to treat angina and hypertension. Previous studies have revealed a positive correlation between the methylation levels of the adrenoreceptor β1 gene (Adrb1) promoter in the myocardium with the antihypertensive activity of Met in spontaneously hypertensive rats (SHR), which affects β1‑AR expression in H9C2 cells. The aim of the present study was to investigate the effects of myocardial β1‑AR downregulation using short‑hairpin RNA (shRNA) against Adrb1 on the antihypertensive activity of Met in SHR...
February 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28000049/complete-genome-sequence-of-menghai-rhabdovirus-a-novel-mosquito-borne-rhabdovirus-from-china
#17
Qiang Sun, Qiumin Zhao, Xiaoping An, Xiaofang Guo, Shuqing Zuo, Xianglilan Zhang, Guangqian Pei, Wenli Liu, Shi Cheng, Yunfei Wang, Peng Shu, Zhiqiang Mi, Yong Huang, Zhiyi Zhang, Yigang Tong, Hongning Zhou, Jiusong Zhang
Menghai rhabdovirus (MRV) was isolated from Aedes albopictus in Menghai county of Yunnan Province, China, in August 2010. Whole-genome sequencing of MRV was performed using an Ion PGM™ Sequencer. We found that MRV is a single-stranded, negative-sense RNA virus. The complete genome of MRV has 10,744 nt, with short inverted repeat termini, encoding five typical rhabdovirus proteins (N, P, M, G, and L) and an additional small hypothetical protein. Nucleotide BLAST analysis using the BLASTn method showed that the genome sequence most similar to that of MRV is that of Arboretum virus (NC_025393...
December 20, 2016: Archives of Virology
https://www.readbyqxmd.com/read/27986124/long-noncoding-rna-highly-up-regulated-in-liver-cancer-predicts-unfavorable-outcome-and-regulates-metastasis-by-mmps-in-triple-negative-breast-cancer
#18
Feng Shi, Fang Xiao, Ping Ding, Hong Qin, Ruixue Huang
BACKGROUND AND AIMS: Long noncoding RNA (lncRNA) highly up-regulated in liver cancer (HULC) is the first identified lncRNA highly expressed in hepatocellular carcinoma and acts as an oncogenic lncRNA. However, the significance of HULC in triple-negative breast cancer (TNBC) is still unclear. Our purpose is to explore the clinical significance and biological function of HULC in TNBC. METHODS: Expression of HULC in TNBC tissues and cell lines was measured and the association between HULC expression and clinicopathological factors was analyzed...
August 2016: Archives of Medical Research
https://www.readbyqxmd.com/read/27932583/inhibition-of-hiv-1-gag-membrane-interactions-by-specific-rnas
#19
Gabrielle C Todd, Alice A Duchon, Jingga Inlora, Erik D Olson, Karin Musier-Forsyth, Akira Ono
HIV-1 particle assembly, which occurs at the plasma membrane (PM) of cells, is driven by the viral polyprotein, Gag. Gag recognizes phosphatidylinositol-(4,5)-bisphosphate [PI(4,5)P2], a PM-specific phospholipid, via the highly basic region (HBR) in its N-terminal matrix (MA) domain. The HBR is also known to bind to RNA. We have previously shown using an in vitro liposome binding assay that RNA inhibits Gag binding to membranes that lack PI(4,5)P2. If this RNA block is removed by RNase treatment, Gag can bind non-specifically to other negatively charged membranes...
December 8, 2016: RNA
https://www.readbyqxmd.com/read/27911725/the-multiple-roles-of-the-nucleocapsid-in-retroviral-rna-conversion-into-proviral-dna-by-reverse-transcriptase
#20
REVIEW
Jean-Luc Darlix, Hugues de Rocquigny, Yves Mély
Retroviruses are enveloped plus-strand RNA viruses that can cause cancer, immunodeficiency and neurological disorder in human and animals. Retroviruses have several unique properties, such as a genomic RNA in a dimeric form found in the virus, and a replication strategy called 'copy-and-paste' during which the plus-strand genomic RNA is converted into a double-stranded DNA, subsequently integrated into the cellular genome. Two essential viral enzymes, reverse transcriptase (RT) and integrase (IN), direct this 'copy-and-paste' replication...
October 15, 2016: Biochemical Society Transactions
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