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https://www.readbyqxmd.com/read/28918598/triacsin-c-reduces-lipid-droplet-formation-and-induces-mitochondrial-biogenesis-in-primary-rat-hepatocytes
#1
Carlos R P Dechandt, Felippe H Zuccolotto-Dos-Reis, Bruno G Teodoro, Anna Maria A P Fernandes, Marcos N Eberlin, Isis C Kettelhut, Carlos Curti, Luciane C Alberici
Intracellular long-chain acyl-CoA synthetases (ACSL) activate fatty acids to produce acyl-CoA, which undergoes β-oxidation and participates in the synthesis of esterified lipids such as triacylglycerol (TAG). Imbalances in these metabolic routes are closely associated with the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Triacsin C is one of the few compounds that inhibit TAG accumulation into lipid droplets (LD) by suppressing ACSL activity. Here we report that treatment of primary rat hepatocytes with triacsin C at concentrations lower than the IC50 (4...
September 16, 2017: Journal of Bioenergetics and Biomembranes
https://www.readbyqxmd.com/read/28918573/anti-inflammatory-effects-of-ginkgo-biloba-extract-against-trimethyltin-induced-hippocampal-neuronal-injury
#2
Sukhwinder Kaur, Neha Sharma, Bimla Nehru
BACKGROUND: Despite the immense neuromodulatory potentials of Ginkgo biloba extract as a memory enhancer, its underlying mechanism seems inadequate particularly with regard to its anti-inflammatory properties. AIM: The objective of the present study is to investigate the protective potentials of Ginkgo biloba extract (GBE) against hippocampal neuronal injury induced by trimethyltin (TMT), a potent neurotoxicant. METHODS: Male SD rats were administered trimethyltin (8...
September 16, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28918562/crispr-cas9-genome-editing-in-wheat
#3
Dongjin Kim, Burcu Alptekin, Hikmet Budak
Genome editing has been a long-term challenge for molecular biology research, particularly for plants possess complex genome. The recently discovered Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) system is a versatile tool for genome editing which enables editing of multiple genes based on the guidance of small RNAs. Even though the efficiency of CRISPR/Cas9 system has been shown with several studies from diploid plants, its application remains a challenge for plants with polyploid and complex genome...
September 16, 2017: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/28918558/colorimetric-detection-of-unamplified-rift-valley-fever-virus-genetic-material-using-unmodified-gold-nanoparticles
#4
Mostafa R Zaher, Hanaa A Ahmed, Kareem E Z Hamada, Reham H Tammam
Rift Valley fever virus (RVFV) is considered an enzootic virus in Africa. RVFV has caused several outbreaks in Egypt, sub-Saharan Africa and the Arabian Peninsula and is responsible for high mortality in ruminants and haemorrhagic fever in severe human cases. Although there are several molecular and serological diagnostic techniques used to detect this arthropod-borne virus with high sensitivity and efficiency, there is a need for a fast and reliable field screening test for rapid outbreak recording and containment...
September 16, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28918530/exogenous-and-endogenous-increase-in-fungal-ggpp-increased-fungal-taxol-production
#5
Sameh S M Soliman, Kareem A Mosa, Ali A El-Keblawy, Mohamed I Husseiny
Taxol is an anticancer identified in both endophytic fungus and its host plant. Plant Taxol is a diterpenoid with geranylgeranyl diphosphate (GGPP) mediates the biosynthesis of its terpenoid moiety. Previous report has suggested that fungal Taxol may require terpenoid pathway for its biosynthesis. Here in this study, feeding a Taxol-producing endophytic fungus (Paraconiothyrium SSM001) with terpenoid precursors including isopentenyl pyrophosphate (IPP, isoprene) and GGPP enhanced Taxol production threefold and fivefold, respectively, compared to the control...
September 16, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28918507/the-muscle-regulatory-transcription-factor-myod-participates-with-p53-to-directly-increase-the-expression-of-the-pro-apoptotic-bcl2-family-member-puma
#6
Terri J Harford, Greg Kliment, Girish C Shukla, Crystal M Weyman
The muscle regulatory transcription factor MyoD is a master regulator of skeletal myoblast differentiation. We have previously reported that MyoD is also necessary for the elevated expression of the pro-apoptotic Bcl2 family member PUMA, and the ensuing apoptosis, that occurs in a subset of myoblasts induced to differentiate. Herein, we report the identification of a functional MyoD binding site within the extended PUMA promoter. In silico analysis of the murine PUMA extended promoter revealed three potential MyoD binding sites within 2 kb of the transcription start site...
September 16, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28918473/complete-genome-sequences-of-two-insect-specific-flaviviruses
#7
Jermilia Charles, Chandra S Tangudu, Andrew E Firth, Bradley J Blitvich
We determined the complete genomic sequences of two previously discovered insect-specific flaviviruses, Marisma mosquito virus (MMV) and Nanay virus (NANV), using a combination of high-throughput sequencing, reverse transcription-polymerase chain reaction, 5' and 3' rapid amplification of cDNA ends and Sanger sequencing. Complete polyprotein amino acid sequence alignments revealed that the closest known relatives of MMV and NANV are Donggang virus (89% identity, 95% similarity) and Nounané virus (53% identity, 70% similarity), respectively...
September 16, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28918420/computer-analysis-of-glioma-transcriptome-profiling-alternative-splicing-events
#8
Vladimir N Babenko, Natalya V Gubanova, Anatoly O Bragin, Irina V Chadaeva, Gennady V Vasiliev, Irina V Medvedeva, Alexey S Gaytan, Alexey L Krivoshapkin, Yuriy L Orlov
Here we present the analysis of alternative splicing events on an example of glioblastoma cell culture samples using a set of computer tools in combination with database integration. The gene expression profiles of glioblastoma were obtained from cell culture samples of primary glioblastoma which were isolated and processed for RNA extraction. Transcriptome profiling of normal brain samples and glioblastoma were done by Illumina sequencing. The significant differentially expressed exon-level probes and their corresponding genes were identified using a combination of the splicing index method...
September 18, 2017: Journal of Integrative Bioinformatics
https://www.readbyqxmd.com/read/28918251/hmg-box-factor-soxd-sox15-and-homeodomain-containing-factor-xanf1-hesx1-directly-interact-and-regulate-the-expression-of-xanf1-hesx1-during-early-forebrain-development-in-xenopus-laevis
#9
Natalia Y Martynova, Fedor M Eroshkin, Eugeny E Оrlov, Andrey G Zaraisky
The homeodomain-containing transcription factor Anf (also known as Rpx/Hesx1 in mammals) plays an important role during the forebrain development in vertebrates. Here we demonstrate the ability of the Xenopus laevis Anf, Xanf1/Hesx1, to directly bind SRY-related HMG-box-containing transcription factor SoxD/Sox15 and to cooperate with the latter during regulating of the expression of Xanf1/Hesx1 own gene. As we have shown by GST pull-down, EMSA and the luciferase reporter assays, Xanf1/Hesx1 and SoxD/Sox15 bind the Xanf1/Hesx1 promoter region counteracting the inhibitory effect of Xanf1/Hesx1 alone...
September 13, 2017: Gene
https://www.readbyqxmd.com/read/28918244/determinants-and-regulation-of-protein-turnover-in-yeast
#10
Miguel Martin-Perez, Judit Villén
Protein turnover maintains the recycling needs of the proteome, and its malfunction has been linked to aging and age-related diseases. However, not all proteins turnover equally, and the factors that contribute to accelerate or slow down turnover are mostly unknown. We measured turnover rates for 3,160 proteins in exponentially growing yeast and analyzed their dependence on physical, functional, and genetic properties. We found that functional characteristics, including protein localization, complex membership, and connectivity, have greater effect on turnover than sequence elements...
September 13, 2017: Cell Systems
https://www.readbyqxmd.com/read/28918236/gene-expression-profiles-of-cell-adhesion-molecules-matrix-metalloproteinases-and-their-tissue-inhibitors-in-canine-oral-tumors
#11
Sirinun Pisamai, Anudep Rungsipipat, Chanin Kalpravidh, Gunnaporn Suriyaphol
Perturbation of cell adhesion can be essential for tumor cell invasion and metastasis, but the current knowledge on the gene expression of molecules that mediate cell adhesion in canine oral tumors is limited. The present study aimed to investigate changes in the gene expression of cell adhesion molecules (E-cadherin or CDH1, syndecan 1 or SDC1, NECTIN2 and NECTIN4), matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs), in canine oral tumors, including benign tumors, oral melanoma (OM) and non-tonsillar oral squamous cell carcinoma (OSCC), by quantitative real-time reverse transcription PCR...
September 8, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28918137/reticulo-rumen-mass-epithelium-gene-expression-and-systemic-biomarkers-of-metabolism-and-inflammation-in-holstein-dairy-cows-fed-a-high-energy-diet
#12
J M Arroyo, A Hosseini, Z Zhou, A Alharthi, E Trevisi, J S Osorio, J J Loor
Feeding a higher-energy diet by increasing cereal grains at the expense of forage during the last 3 to 4 wk prepartum is a traditional approach to help the rumen "adapt" to the traditional diets fed at the onset of lactation. Increasing grain/concentrate in the diet changes ruminal fermentation and in sheep and goats elicits marked changes in mRNA expression of immune-related genes in ruminal epithelium. Whether such changes at the epithelial and systemic levels occur in dairy cows when the dietary energy content increases at a fixed level of concentrate is unknown...
September 13, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28918076/simultaneous-detection-of-wheat-dwarf-virus-northern-cereal-mosaic-virus-barley-yellow-striate-mosaic-virus-and-rice-black-streaked-dwarf-virus-in-wheat-by-multiplex-rt-pcr
#13
Peipei Zhang, Yan Liu, Wenwen Liu, Sebastien Massart, Xifeng Wang
Wheat dwarf virus (WDV), barley yellow striate mosaic virus (BYSMV), rice black-streaked dwarf virus (RBSDV) and northern cereal mosaic virus (NCMV) are four viruses infecting wheat and causing similar symptoms. In this paper, a multiplex reverse transcription polymerase chain reaction (m-RT-PCR) method has been developed for the simultaneous detection and discrimination of these viruses. The protocol uses specific primer set for each virus and produces four distinct fragments (273, 565, 783 and 1296bp), detecting the presence of RBSDV, BYSMV, WDV and NCMV, respectively...
September 13, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28918057/one-step-piggybac-transposon-based-crispr-cas9-activation-of-multiple-genes
#14
Shenglan Li, Anqi Zhang, Haipeng Xue, Dali Li, Ying Liu
Neural cell fate is determined by a tightly controlled transcription regulatory network during development. The ability to manipulate the expression of multiple transcription factors simultaneously is required to delineate the complex picture of neural cell development. Because of the limited carrying capacity of the commonly used viral vectors, such as lentiviral or retroviral vectors, it is often challenging to perform perturbation experiments on multiple transcription factors. Here we have developed a piggyBac (PB) transposon-based CRISPR activation (CRISPRa) all-in-one system, which allows for simultaneous and stable endogenous transactivation of multiple transcription factors and long non-coding RNAs...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28918046/microrna-as-therapeutic-targets-for-chronic-wound-healing
#15
REVIEW
Eoghan J Mulholland, Nicholas Dunne, Helen O McCarthy
Wound healing is a highly complex biological process composed of three overlapping phases: inflammation, proliferation, and remodeling. Impairments at any one or more of these stages can lead to compromised healing. MicroRNAs (miRs) are non-coding RNAs that act as post-transcriptional regulators of multiple proteins and associated pathways. Thus, identification of the appropriate miR involved in the different phases of wound healing could reveal an effective third-generation genetic therapy in chronic wound care...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28918041/gapmer-antisense-oligonucleotides-suppress-the-mutant-allele-of-col6a3-and-restore-functional-protein-in-ullrich-muscular-dystrophy
#16
Elena Marrosu, Pierpaolo Ala, Francesco Muntoni, Haiyan Zhou
Dominant-negative mutations in the genes that encode the three major α chains of collagen type VI, COL6A1, COL6A2, and COL6A3, account for more than 50% of Ullrich congenital muscular dystrophy patients and nearly all Bethlem myopathy patients. Gapmer antisense oligonucleotides (AONs) are usually used for gene silencing by stimulating RNA cleavage through the recruitment of an endogenous endonuclease known as RNase H to cleave the RNA strand of a DNA-RNA duplex. In this study, we exploited the application of the allele-specific silencing approach by gapmer AON as a potential therapy for Collagen-VI-related congenital muscular dystrophy (COL6-CMD)...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28918037/a-novel-pak1-atf2-mir-132-signaling-axis-is-involved-in-the-hematogenous-metastasis-of-gastric-cancer-cells
#17
Funan Liu, Zhenguo Cheng, Xiaodong Li, Yanshu Li, Hongyan Zhang, Jiabin Li, Furong Liu, Huimian Xu, Feng Li
We, along with others, have shown previously that P21-activated kinase 1 (Pak1) plays a pivotal role in gastric cancer progression and metastasis. However, whether Pak1 controls gastric cancer metastasis by regulating microRNAs (miRNAs) has never been explored. Here, we report a novel mechanism of Pak1 in tumor metastasis. A detailed examination revealed that Pak1 interacts with and phosphorylates the serine 62 residue of ATF2 and then blocks its translocation into the nucleus. We also confirmed that ATF2 binds to the promoter of miR-132 and tightly regulates its transcription, thus explaining the regulatory mechanism of miR-132 by Pak1...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28918032/microrna-31-regulates-chemosensitivity-in-malignant-pleural-mesothelioma
#18
Hannah L Moody, Michael J Lind, Stephen G Maher
Malignant pleural mesothelioma (MPM) is associated with an extremely poor prognosis, and most patients initially are or rapidly become unresponsive to platinum-based chemotherapy. MicroRNA-31 (miR-31) is encoded on a genomic fragile site, 9p21.3, which is reportedly lost in many MPM tumors. Based on previous findings in a variety of other cancers, we hypothesized that miR-31 alters chemosensitivity and that miR-31 reconstitution may influence sensitivity to chemotherapeutics in MPM. Reintroduction of miR-31 into miR-31 null NCI-H2452 cells significantly enhanced clonogenic resistance to cisplatin and carboplatin...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28918030/lncrna-trerna1-function-as-an-enhancer-of-snai1-promotes-gastric-cancer-metastasis-by-regulating-epithelial-mesenchymal-transition
#19
Huazhang Wu, Ying Hu, Xiufang Liu, Wei Song, Pihai Gong, Kun Zhang, Zhenxing Chen, Menghan Zhou, Xiaohui Shen, Yanyan Qian, Hong Fan
Long noncoding RNA (lncRNA) has been implicated in cancer, but little is known about the role of lncRNAs as regulators of tumor metastasis. In the present study, we demonstrate that lncRNA TRERNA1 acts like an enhancer of SNAI1 to promote cell invasion and migration and to contribute to metastasis of gastric cancer (GC). TRERNA1 is significantly unregulated in GCs and GC cell lines. Increased TRERNA1 is positively correlated with lymph node metastasis of GCs. RNA immunoprecipitation (RIP) and chromatin immunoprecipitation (ChIP) assays revealed that TRERNA1 functions as a scaffold to recruit EZH2 to epigenetically silence epithelial-mesenchymal transition marker CDH1 by H3K27me3 of its promoter region...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28918029/activation-of-ampk-attenuated-cardiac-fibrosis-by-inhibiting-cdk2-via-p21-p27-and-mir-29-family-pathways-in-rats
#20
Hanping Qi, Yan Liu, Shuzhi Li, Yunping Chen, Lei Li, Yonggang Cao, Mingyao E, Pilong Shi, Chao Song, Baiyan Li, Hongli Sun
Cardiac fibrosis is pathological damage associated with nearly all forms of heart disease. AMP-activated protein kinase (AMPK) is an evolutionary conserved energy-sensing enzyme. Emerging evidences indicate that AMPK plays an important role in cardiac fibrosis and cell proliferation. However, less is known about the detailed mechanism of AMPK activation on cardiac fibrosis. In this study, we found the AMPK activation improved the impaired cardiac function of cardiac fibrosis rats and decreased interstitial fibrosis...
September 15, 2017: Molecular Therapy. Nucleic Acids
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