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https://www.readbyqxmd.com/read/29147791/completed-sequence-and-corrected-annotation-of-the-genome-of-maize-iranian-mosaic-virus
#1
Abozar Ghorbani, Keramatollah Izadpanah, Ralf G Dietzgen
Maize Iranian mosaic virus (MIMV) is a negative-sense single-stranded RNA virus that is classified in the genus Nucleorhabdovirus, family Rhabdoviridae. The MIMV genome contains six open reading frames (ORFs) that encode in 3΄ to 5΄ order the nucleocapsid protein (N), phosphoprotein (P), putative movement protein (P3), matrix protein (M), glycoprotein (G) and RNA-dependent RNA polymerase (L). In this study, we determined the first complete genome sequence of MIMV using Illumina RNA-Seq and 3'/5' RACE. MIMV genome ('Fars' isolate) is 12,426 nucleotides in length...
November 16, 2017: Archives of Virology
https://www.readbyqxmd.com/read/29140932/characteristics-of-treatment-experienced-hiv-infected-african-children-and-adolescents-initiating-darunavir-and-or-etravirine-based-antiretroviral-treatment
#2
Bethany Corrigan, Irene Mukui, Lloyd Mulenga, Nobuhle Mthethwa, Mosilinyane Letsie, Stephanie Bruno, Natella Rakhmanina
BACKGROUND: Data are limited on the selection and sequencing of second and third-line pediatric antiretroviral treatment (ART) in resource-limited settings. This study aimed to evaluate characteristics of African pediatric patients initiated on darunavir (DRV) and/or etravirine (ETR) through a specific drug donation program. METHODS: This was a cross-sectional study of baseline immunologic, virologic and demographic characteristics of children and adolescents initiating DRV- and/or ETR-based ART...
November 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29133898/intertwining-dna-rna-nanocapsules-loaded-with-tumor-neoantigens-as-synergistic-nanovaccines-for-cancer-immunotherapy
#3
Guizhi Zhu, Lei Mei, Harshad D Vishwasrao, Orit Jacobson, Zhantong Wang, Yijing Liu, Bryant C Yung, Xiao Fu, Albert Jin, Gang Niu, Qin Wang, Fuwu Zhang, Hari Shroff, Xiaoyuan Chen
Nanomedicines that co-deliver DNA, RNA, and peptide therapeutics are highly desirable yet remain underdeveloped for cancer theranostics. Herein, we report self-assembled intertwining DNA-RNA nanocapsules (iDR-NCs) that efficiently delivered synergistic DNA CpG and short hairpin RNA (shRNA) adjuvants, as well as tumor-specific peptide neoantigens into antigen presenting cells (APCs) in lymph nodes for cancer immunotherapy. These nanovaccines were prepared by (1) producing tandem CpG and shRNA via concurrent rolling circle replication and rolling circle transcription, (2) self-assembling CpG and shRNA into DNA-RNA microflowers, (3) shrinking microflowers into iDR-NCs using PEG-grafted cationic polypeptides, and (4) physically loading neoantigen into iDR-NCs...
November 14, 2017: Nature Communications
https://www.readbyqxmd.com/read/29130234/-expression-of-acetyl-coenzyme-a-synthetase-2-in-colorectal-cancer-and-its-biological-role
#4
Tong Yu, Long Cui, Chenying Liu, Guanghui Wang, Tingyu Wu, Yuji Huang
OBJECTIVE: To investigate the expression of acetyl coenzyme A synthetase short-chain family member 2 (ACSS2) in patients with colorectal cancer (CRC) and its biological role. METHODS: A total of 74 CRC tissue samples and 40 normal colorectal tissues were tested by immunohistochemical staining to detect the expression of ACSS2 (cell staining intensity score: 0 points: without staining, 1 points: weak staining, 2 points: intensity staining, 3 point: strong staining; the percentage of positive cells in tumor or negative score: 0 points: negative, 1 point: <25% positive cells, 2 points: 25%-50% positive cells, 3 points: 50%-75% positive cells, 4 points: >75% positive cells...
October 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29127210/hiv-1-nc-induced-stress-granule-assembly-and-translation-arrest-are-inhibited-by-the-dsrna-binding-protein-staufen1
#5
Shringar Rao, Alessandro Cinti, Abdelkrim Temzi, Raquel Amorim, Ji Chang You, Andrew J Mouland
The nucleocapsid (NC) is an N-terminal protein derived from the HIV-1 Gag precursor polyprotein, pr55Gag. NC possesses key functions at several pivotal stages of viral replication. For example, an interaction between NC and the host, double-stranded RNA-binding protein Staufen1 was shown to regulate several steps in the viral replication cycle, such as Gag multimerisation and genomic RNA encapsidation. In this work, we observed that the overexpression of NC leads to the induction of stress granule (SG) assembly...
November 10, 2017: RNA
https://www.readbyqxmd.com/read/29122971/poly-a-site-choice-and-pol2-ctd-serine-5-status-govern-lncrna-control-of-phosphate-responsive-tgp1-gene-expression-in-fission-yeast
#6
Ana M Sanchez, Stewart Shuman, Beate Schwer
Expression of fission yeast glycerophosphate transporter Tgp1 is repressed in phosphate-rich medium and induced during phosphate starvation. Repression is enforced by transcription of the nc-tgp1 locus upstream of tgp1 to produce a long noncoding (lnc) RNA. Here we identify two essential elements of the nc-tgp1 promoter: a TATA box (-30)TATATATA(-23) and a HomolD box (-64)CAGTCACA(-57), mutations of which inactivate the nc-tgp1 promoter and de-repress the downstream tgp1 promoter under phosphate-replete conditions...
November 9, 2017: RNA
https://www.readbyqxmd.com/read/29069797/microrna-16-5p-overexpression-suppresses-proliferation-and-invasion-as-well-as-triggers-apoptosis-by-targeting-vegfa-expression-in-breast-carcinoma
#7
Yunhui Qu, Hongtao Liu, Xinquan Lv, Yuqiong Liu, Xiaojuan Wang, Min Zhang, Xiaqing Zhang, Yuenan Li, Qianqian Lou, Shenglei Li, Huixiang Li
MicroRNAs (miRNAs), a class of small noncoding RNA molecules, can manipulate the expressions of endogenous tumor-related genes, and are implicated in the development and progression of a wide type of tumors. In this study, the investigation from real-time quantitative PCR revealed that miRNA-16-5p was downregulated in breast carcinoma tissues and cells, coupled with the elevations of HIF-α and VEGFA protein expressions, compared with normal tissues. Lentiviral armed with miR-16-5p markedly increased the miR-16-5p levels in MCF-7 and MDA-MB-231 cells, compared to blank and NC groups, and miR-16-5p overexpression significantly inhibited the proliferation and colony formation in MCF-7 and MDA-MB-231 cells...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29067119/mir-148a-modulates-hla-g-expression-and-influences-tumor-apoptosis-in-esophageal-squamous-cell-carcinoma
#8
Quan Chen, Guanghua Luo, Xiaoying Zhang
Esophageal cancer (EC) is a common malignant tumor type, and esophageal squamous cell carcinoma (ESCC) accounts for the majority of EC cases. Previous studies have reported that microRNA (miR)-148a is downregulated in patients with recurrent EC. The human leukocyte antigen-G (HLA-G) is expressed to a high level in primary ESCC tissues and is associated with prognosis. A previous luciferase assay indicated that HLA-G is a target of miR-148a regulation. The aim of the current study was to investigate the expression level of miR-148a in primary ESCC...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29065394/long-non-coding-rna-malat1-mediates-retinal-ganglion-cell-apoptosis-through-the-pi3k-akt-signaling-pathway-in-rats-with-glaucoma
#9
Hai-Bo Li, Qi-Sheng You, Li-Xin Xu, Li-Xin Sun, Aman Shah Abdul Majid, Xiao-Bo Xia, Dan Ji
BACKGROUND/AIMS: The aim of the present study is to investigate the effect of long non-coding RNA-MALAT1 (LncRNA-MALAT1) on retinal ganglion cell (RGC) apoptosis mediated by the PI3K/Akt signaling pathway in rats with glaucoma. METHODS: RGCs were isolated and cultured, and monoclonal antibodies (anti-rat Thy-1, Brn3a and RBPMS) were examined by immunocytochemistry. An overexpression vector MALAT1-RNA activation (RNAa), gene knockout vector MALAT1-RNA interference (RNAi), and control vector MALAT1-negative control (NC) were constructed...
October 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29056573/non-coding-rna-expression-and-targeted-next-generation-sequencing-distinguish-tubulocystic-renal-cell-carcinoma-tc-rcc-from-other-renal-neoplasms
#10
Charles H Lawrie, María Armesto, Marta Fernandez-Mercado, María Arestín, Lorea Manterola, Ibai Goicoechea, Erika Larrea, María M Caffarel, Angela M Araujo, Carla Sole, Maris Sperga, Isabel Alvarado-Cabrero, Michal Michal, Ondrej Hes, José I López
Tubulocystic renal cell carcinoma (TC-RCC) is a rare recently described renal neoplasm characterized by gross, microscopic and immunohistochemical differences from other renal tumor types that was recently classified as a distinct entity. However, this distinction remains controversial particularly as some genetic studies suggest a close relationship with papillary renal cell carcinoma (PRCC). The molecular basis of this disease remains largely unexplored. We therefore performed non-coding (nc)RNA/miRNA expression analysis and targeted next-generation sequencing mutational profiling on 13 TC-RCC cases (11 pure, two mixed TC-RCC/PRCC) and compared with other renal neoplasms...
October 19, 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/29039643/exploring-the-ph-sensitivity-of-poly-allylamine-phosphate-supramolecular-nanocarriers-for-intracellular-sirna-delivery
#11
Patrizia Andreozzi, Eleftheria Diamanti, Karen Rapp Py-Daniel, Paolin Rocio Cáceres-Vélez, Chiara Martinelli, Nikolaos Politakos, Ane Escobar, Marco Muzi-Falconi, Ricardo Azevedo, Sergio E Moya
Silencing RNA (siRNA) technologies emerge as a promising therapeutic tool for the treatment of multiple diseases. An ideal nanocarrier (NC) for siRNAs should be stable at physiological pH and release siRNAs in acidic endosomal pH, fulfilling siRNA delivery only inside cells. Here, we show a novel application of polyamine phosphate NCs (PANs) based on their capacity to load negatively charged nucleic acids and their pH stability. PANs are fabricated by complexation of phosphate anions from phosphate buffer solution (PB) with the amine groups of poly(allylamine) hydrochloride as carriers for siRNAs...
November 8, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29039442/angiogenic-effects-of-apigenin-on-endothelial-cells-after-hypoxia-reoxygenation-via-the-caveolin-1-pathway
#12
Fengxia Tu, Qiongyi Pang, Xiang Chen, Tingting Huang, Meixia Liu, Qiongxiang Zhai
In the present study, we aimed to elucidate whether apigenin contributes to the induction of angiogenesis and the related mechanisms in cell hypoxia-reoxygenation injury. The role of apigenin was examined in human umbilical vein endothelial cell (HUVEC) viability, migration and tube formation in vitro. To investigate the related mechanisms, we used caveolin-1 short interfering RNA. The viability of HUVECs was measured using Cell Counting Kit-8 assays, HUVEC migration was analyzed by crystal violet staining, and a tube formation assay was performed using the branch point method...
September 28, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28983740/experimental-toxoplasma-gondii-and-eimeria-tenella-co-infection-in-chickens
#13
Lysanne Hiob, M Koethe, G Schares, T Goroll, A Daugschies, B Bangoura
The widespread apicomplexan parasites Toxoplasma gondii (T. gondii) and Eimeria tenella (E. tenella) are important pathogens with high prevalence in poultry. The aim of our study was the investigation of mutual influences in co-infected chickens, focusing on immune response and course of infection. Two separate trials were performed using in total 96 1-day-old chickens, divided into four study groups: group NC (negative control, uninfected), group PC-T (oral or intramuscular infection with T. gondii oocysts (trial 1) or tachyzoites (trial 2), respectively), group PC-E (oral infection with E...
November 2017: Parasitology Research
https://www.readbyqxmd.com/read/28979268/nkg2c-nkg2a-natural-killer-cells-are-associated-with-a-lower-viral-set-point-and-may-predict-disease-progression-in-individuals-with-primary-hiv-infection
#14
Meichen Ma, Zhuo Wang, Xi Chen, Anfu Tao, Lei He, Shuai Fu, Zining Zhang, Yajing Fu, Chenxi Guo, Jing Liu, Xiaoxu Han, Junjie Xu, Zhenxing Chu, Haibo Ding, Hong Shang, Yongjun Jiang
Natural killer (NK) cells are the first line of defense against pathogens of the immune system and also play an important role in resistance against HIV. The activating receptor NKG2C and the inhibitory receptor NKG2A co-modulate the function of NK cells by recognizing the same ligand, HLA-E. However, the role of NKG2A and NKG2C on viral set point and the prediction of HIV disease progression have been rarely reported. In this study, we determined the expression of NKG2C or NKG2A on the surface of NK cells from 22 individuals with primary HIV infection (PHI) stage and 23 HIV-negative normal control (NC) subjects...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28968689/snaptron-querying-splicing-patterns-across-tens-of-thousands-of-rna-seq-samples
#15
Christopher Wilks, Phani Gaddipati, Abhinav Nellore, Ben Langmead
Motivation: As more and larger genomics studies appear, there is a growing need for comprehensive and queryable cross-study summaries. These enable researchers to leverage vast datasets that would otherwise be difficult to obtain. Results: Snaptron is a search engine for summarized RNA sequencing data with a query planner that leverages R-tree, B-tree and inverted indexing strategies to rapidly execute queries over 146 million exonexon splice junctions from over 70,000 human RNA-seq samples...
September 1, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28955777/up-regulation-of-selenoprotein-p-and-hip-pap-mrnas-in-hepatocytes-by-intermittent-hypoxia-via-down-regulation-of-mir-203
#16
Tomoko Uchiyama, Hiroyo Ota, Asako Itaya-Hironaka, Ryogo Shobatake, Akiyo Yamauchi, Sumiyo Sakuramoto-Tsuchida, Mai Makino, Hiroshi Kimura, Maiko Takeda, Chiho Ohbayashi, Shin Takasawa
Sleep apnea syndrome is characterized by recurrent episodes of oxygen desaturation and reoxygenation (intermittent hypoxia [IH]) and is a risk factor for insulin resistance/type 2 diabetes. However, the mechanisms linking IH stress and insulin resistance remain elusive. We exposed human hepatocytes (JHH5, JHH7, and HepG2) to experimental IH or normoxia for 24 h, measured mRNA levels by real-time reverse transcription polymerase chain reaction (RT-PCR), and found that IH significantly increased the mRNA levels of selenoprotein P (SELENOP) - a hepatokine - and hepatocarcinoma-intestine-pancreas/pancreatitis-associated protein (HIP/PAP) - one of REG (Regenerating gene) family...
September 2017: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/28948416/genotoxic-effects-and-gene-expression-in-danio-rerio-hamilton-1822-cypriniformes-cyprinidae-exposed-to-mining-impacted-tributaries-in-manizales-colombia
#17
Paula A Ossa-López, Gabriel J Castaño-Villa, Fredy A Rivera-Páez
The zebrafish (Danio rerio) is one of the most studied aquatic organisms for water biomonitoring, due to its sensitivity to environmental degradation and resistance to toxic substances. This study determined the presence of micronuclei and nuclear abnormalities in peripheral blood erythrocytes, and assessed the gene expression of caspase-3 (CASP-3) and metallothionein 1 (MT-1) in the gills and liver of D. rerio. The study fish (n = 45) were exposed to water collected from two stations with mining impact (E2 and E3) and a reference station without evident mining contamination (E1), all located in La Elvira stream (Manizales-Colombia)...
September 25, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28927090/downregulation-of-pdcd4-by-mir-21-suppresses-tumor-transformation-and-proliferation-in-a-nude-mouse-renal-cancer-model
#18
Haixin Yuan, Shiyong Xin, Yaoping Huang, Yingfan Bao, Hao Jiang, Liqing Zhou, Xiaoqiang Ren, Liang Li, Qian Wang, Jianguo Zhang
Programmed cell death 4 (PDCD4) is known to suppress neoplastic transformation, cell proliferation and metastasis, and to be downregulated by microRNA-21 (miR-21) in renal cell carcinoma (RCC) cell lines and tissues. The aim of the present study was to investigate the roles of and association between PDCD4 and miR-21 in a nude mouse renal cancer model. A total of 24 BALB/c male nude mice were randomly assigned into the following three groups: Negative control (NC; n=8), miR-21 inhibitor (n=8) and miR-21 mimic (n=8)...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28925484/mir-22-inhibits-lung-cancer-cell-emt-and-invasion-through-targeting-snail
#19
K Zhang, X-Y Li, Z-M Wang, Z-F Han, Y-H Zhao
OBJECTIVE: Snail is an important factor in regulating epithelial mesenchymal transition (EMT). Its elevation is related to the enhancement of lung cancer invasion. MicroRNA-22 (MiR-22) plays a role in regulating lung cancer cell invasion. Bioinformatics analysis showed the complementary binding site between miR-22 and Snail. This study aimed to investigate the role of miR-22 in regulating Snail and affecting lung cancer cell invasion and metastasis. MATERIALS AND METHODS: Dual luciferase assay confirmed the targeted relationship between miR-22 and Snail...
August 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28922229/micrornas-as-clinical-biomarkers-and-therapeutic-tools-in-perioperative-medicine
#20
Simone Kreth, Max Hübner, Ludwig Christian Hinske
Over the past decade, evolutionarily conserved, noncoding small RNAs-so-called microRNAs (miRNAs)-have emerged as important regulators of virtually all cellular processes. miRNAs influence gene expression by binding to the 3'-untranslated region of protein-coding RNA, leading to its degradation and translational repression. In medicine, miRNAs have been revealed as novel, highly promising biomarkers and as attractive tools and targets for novel therapeutic approaches. miRNAs are currently entering the field of perioperative medicine, and they may open up new perspectives in anesthesia, critical care, and pain medicine...
September 14, 2017: Anesthesia and Analgesia
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