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https://www.readbyqxmd.com/read/28636661/robust-nonparametric-quantification-of-clustering-density-of-molecules-in-single-molecule-localization-microscopy
#1
Shenghang Jiang, Seongjin Park, Sai Divya Challapalli, Jingyi Fei, Yong Wang
We report a robust nonparametric descriptor, J'(r), for quantifying the density of clustering molecules in single-molecule localization microscopy. J'(r), based on nearest neighbor distribution functions, does not require any parameter as an input for analyzing point patterns. We show that J'(r) displays a valley shape in the presence of clusters of molecules, and the characteristics of the valley reliably report the clustering features in the data. Most importantly, the position of the J'(r) valley ([Formula: see text]) depends exclusively on the density of clustering molecules (ρc)...
2017: PloS One
https://www.readbyqxmd.com/read/28636533/microrna-149-suppresses-hepatic-inflammatory-response-through-antagonizing-stat3-signaling-pathway
#2
Qiqi Zhang, Jia Su, Ziwei Wang, Hui Qi, Zeyong Ge, Zhijun Li, Wei-Dong Chen, Yan-Dong Wang
Chronic inflammation is increasingly recognized as an important component of tumorigenesis and metabolic diseases. The roles of microRNA149* (miRNA149*) in inflammation remain poorly understood. Here, we demonstrate that miR-149* is a suppressor of STAT3-mediated inflammation. MiR-149*-/- mice were generated with CRISPR/CAS9 technique. In a lipopolysaccharide (LPS)-induced inflammation model, miR-149*-/- mice show more severe liver injury and inflammation, compared with wild-type (WT) mice. MiR-149*-/- mice also displayed elevated messenger RNA (mRNA) levels of interleukin (IL)-6, inducible nitric oxide synthase (iNOS), complement C3 (C3) and IL-4 in response to LPS...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636115/sirna-mediated-down-regulation-of-clic4-gene-inhibits-cell-proliferation-and-accelerates-cell-apoptosis-of-mouse-liver-cancer-hca-f-and-hca-p-cells
#3
Qiu-Yun Yu, Xin-Feng Zhou, Qing Xia, Jia Shen, Jia Yan, Jiu-Ting Zhu, Xiang Li, Ming Shu
This study explored the effects involved in silencing CLIC4 on apoptosis and proliferation of mouse liver cancer Hca-F and Hca-P cells. A CLIC4-target small interfering RNA (siRNA) was designed to compound into two individual complementary oligonucleotide chains. A process of annealing and connection to a pSilencer vector was followed by transfection with Hca-F and Hca-P cells. Quantitative real-time polymerase chain reaction and western blotting techniques were used to determine CLIC4 mRNA and protein expressions...
June 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28635259/a-delivery-system-targeting-haemagglutinin-of-influenza-virus-a-to-facilitate-antisense-based-anti-h1n1-therapy
#4
Xiaoran Ding, Jing Yang, Dandan Lu, Qingjun Li, Zhaoyan Zhang, Zhe Zhou, Shengqi Wang
Antisense oligonucleotides (ODNs) are therapeutic molecules that hybridize to complementary target mRNA sequences. To further overcome the poor cellular uptake of ODNs, we proposed a novel strategy to deliver ODNs by conjugating the anti-influenza A virus (IAV) ODN with a peptide showing high affinity to the haemagglutinin (HA) on the surface of IAV particles or the IAV infected host cells. The HA-specific binding peptides were selected by phage display and the individual binding clones are characterized by DNA sequencing, and the selected phage was further assayed by ELISA...
June 21, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28633909/resolving-in-vivo-gene-expression-during-collective-cell-migration-using-an-integrated-rnascope-immunohistochemistry-and-tissue-clearing-method
#5
Jason A Morrison, Mary Cathleen McKinney, Paul M Kulesa
During collective cell migration individual cells display diverse behaviors that complicate our understanding of group cell decisions of direction and cohesion. In vivo gene and protein expression analyses would shed light on the underlying molecular choreography. However, this information has been limited due to difficulties to integrate single cell detection methods and the simultaneous readout of signals deep within the embryo. Here, we optimize and integrate multiplex fluorescence in situ hybridization by RNAscope, immunohistochemistry, and tissue clearing to visualize transcript and protein localization within single cells deep within intact chick embryos...
June 17, 2017: Mechanisms of Development
https://www.readbyqxmd.com/read/28631886/nlrp3-expression-and-urinary-hsp72-in-relation-to-biomarkers-of-inflammation-and-oxidative-stress-in-diabetic-nephropathy-patients
#6
Hemat El-Sayed El-Horany, Rania Nagi Abd-Ellatif, Mona Watany, Yasser M Hafez, Hanaa Ibrahim Okda
Diabetic nephropathy (DN) is one of the major causes of end-stage renal disease. Nod-like receptors nucleotide-binding domain and leucine-rich repeat pyrin-3 domain (NLRP3) inflammasome displays a considerable role in the chronic inflammatory state observed in diabetic patients. Urinary heat shock protein 72 (uHSP72) is a sensitive and specific biomarker for the early detection of acute kidney injury. The aim of this study was to evaluate NLRP3 relative gene expression, its correlation with inflammatory and oxidative stress markers, and to assess the value of uHSP72 in the early detection of DN in type 2 diabetic patients with different degrees of DN...
June 20, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28631819/protective-effects-of-tannic-acid-on-pressure-overload-induced-cardiac-hypertrophy-and-underlying-mechanisms-in-rats
#7
Li Chu, Pinya Li, Tao Song, Xue Han, Xuan Zhang, Qiongtao Song, Tao Liu, Yuanyuan Zhang, Jianping Zhang
OBJECTIVES: The aim of this study was to examine the cardioprotective effects and latent mechanism of tannic acid (TA) on cardiac hypertrophy. METHODS: Abdominal aortic banding (AAB) was used to induce pressure overload-induced cardiac hypertrophy in male Wistar rats, sham-operated rats served as controls. AAB rats were treated with TA (20 and 40 mg/kg) or captoril. KEY FINDINGS: Abdominal aortic banding rats that received TA showed ameliorated pathological changes in cardiac morphology and coefficients, decreased cardiac hypertrophy and apoptosis, a reduction in over expressions of angiotensin type 1 receptor (AT1 R), angiotensin type 2 receptor (AT2 R), phosphorylation of extracellular signal-regulated kinase 1/2 (ERK1/2) and transforming growth factor-β (TGF-β) mRNA, and modified expression of matrix metal proteinase-9 (MMP-9) mRNA in AAB rat hearts...
June 20, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28631709/-cancer-testis-genes-in-colon-cancer
#8
N R Hilal, D V Novikov, V V Novikov, A V Karaulov
The expression of cancer-testis (CT) genes varies with tumor type. There are tumors with high, low, and intermediate gene expressions. Tumor cells of different origin are characterized by ST gene co-expression. The expression of ST genes increases in later stages of tumor development in the presence of metastases. In colon cancer, the tumor samples showed most frequently MAGE-A and SSX mRNA. The peripheral blood samples displayed most commonly XAGE, MAGE-C, and SSX mRNA. In patients with colon cancer, the expression of TSP50, MAGE-A(1-6), and SSX1,2,4 genes was associated with a poor prognosis, that of MAGE-C1 and XAGE1 was related to a favorable prognosis...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28629758/implications-of-the-gut-microbiota-in-vulnerability-to-the-social-avoidance-effects-of-chronic-social-defeat-in-male-mice
#9
Joanna Kasia Szyszkowicz, Alex Wong, Hymie Anisman, Zul Merali, Marie-Claude Audet
Appreciable evidence suggests that perturbations within the gut microbiome and the immune system may play a key role in the pathogenesis of depression stemming from earlier stressful experiences. In the present investigation we examined whether microbial changes in cecum contents were associated with social avoidance behaviors, a feature of depression, and pro-inflammatory variations among socially stressed mice. Male C57BL/6 mice experienced social defeat or a control condition once a day for 10 consecutive days...
June 16, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28626751/feeder-cell-type-affects-the-growth-of-in-vitro-cultured-bovine-trophoblast-cells
#10
Islam M Saadeldin, Ahmed Abdelfattah-Hassan, Ayman Abdel-Aziz Swelum
Trophectoderm cells are the foremost embryonic cells to differentiate with prospective stem-cell properties. In the current study, we aimed at improving the current approach for trophoblast culture by using granulosa cells as feeders. Porcine granulosa cells (PGCs) compared to the conventional mouse embryonic fibroblasts (MEFs) were used to grow trophectoderm cells from hatched bovine blastocysts. Isolated trophectoderm cells were monitored and displayed characteristic epithelial/cuboidal morphology. The isolated trophectoderm cells expressed mRNA of homeobox protein (CDX2), cytokeratin-8 (KRT8), and interferon tau (IFNT)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28626466/identification-characterization-and-functional-validation-of-drought-responsive-micrornas-in-subtropical-maize-inbreds
#11
Jayaraman Aravind, Sharma Rinku, Banduni Pooja, Mittal Shikha, Shiriga Kaliyugam, Mallana Gowdra Mallikarjuna, Arun Kumar, Atmakuri Ramakrishna Rao, Thirunavukkarasu Nepolean
MicroRNA-mediated gene regulation plays a crucial role in controlling drought tolerance. In the present investigation, 13 drought-associated miRNA families consisting of 65 members and regulating 42 unique target mRNAs were identified from drought-associated microarray expression data in maize and were subjected to structural and functional characterization. The largest number of members (14) was found in the zma-miR166 and zma-miR395 families, with several targets. However, zma-miR160, zma-miR390, zma-miR393, and zma-miR2275 each showed a single target...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28624598/inhibition-of-lps-induced-pro-inflammatory-responses-in-raw-264-7-macrophage-cells-by-pvp-coated-naringenin-nanoparticle-via-down-regulation-of-nf-%C3%AE%C2%BAb-p38mapk-mediated-stress-signaling
#12
Pradeep Kumar R, Annie Abraham
BACKGROUND: Naringenin (NAR) was found to display strong pharmacological properties. Since the clinical relevance of NAR is limited by its low bioavailability, we effectively synthesized and characterized a novel PVP-coated NAR nanoparticle (NAR NP) to enhance the therapeutic efficacy of NAR. The present study was designed to investigate the effects of NAR NP on lipopolysaccharide (LPS) induced inflammatory response in RAW 264.7 macrophage cells. METHODS: In vitro cell culture studies of LPS stimulated RAW 264...
April 6, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28623169/mutation-of-the-inhibitory-ethanol-site-in-gabaa-%C3%AF-1-receptors-promotes-tolerance-to-ethanol-induced-motor-incoordination
#13
Yuri A Blednov, Cecilia M Borghese, Carlos I Ruiz, Madeline A Cullins, Adriana Da Costa, Elizabeth A Osterndorff-Kahanek, Gregg E Homanics, R Adron Harris
Genes encoding the ρ1/2 subunits of GABAA receptors have been associated with alcohol (ethanol) dependence in humans, and ρ1 was also shown to regulate some of the behavioral effects of ethanol in animal models. Ethanol inhibits GABA-mediated responses in wild-type (WT) ρ1, but not ρ1(T6'Y) mutant receptors expressed in Xenopus laevis oocytes, indicating the presence of an inhibitory site for ethanol in the second transmembrane helix. In this study, we found that ρ1(T6'Y) receptors expressed in oocytes display overall normal responses to GABA, the endogenous GABA modulator (zinc), and partial agonists (β-alanine and taurine)...
June 13, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28623139/the-co-expression-of-neogenin-with-sox2-in-hippocampal-neurons
#14
Namgue Hong, Mi-Hye Kim, Churl K Min, Hee Jung Kim, Jae Ho Lee
Dementia has been shown to be closely related with neuronal degeneration and/or a decrease in the activity of neural stem cells in many brain regions, including the hippocampus. It has been recently established that Neogenin is involved in the cell fate determination by regulating Oct3/4, SOX and Nanog, notable embryonic cell markers, expressions in pre-implantation mouse embryos. Further, Neogenin expression at both mRNA and protein levels is manifest in many brain regions in mice, but it remains unclear whether Neogenin expression is prerequisite for the maintenance of neural stem cells, particularly, playing a critical role in the hippocampus, a brain region known to be involved in memory generation and consolidation...
June 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28622456/elevated-ccl25-and-ccr9-expressing-t-helper-cells-in-salivary-glands-of-primary-sj%C3%A3-gren-s-syndrome-patients-potential-new-axis-in-lymphoid-neogenesis
#15
Sofie L M Blokland, Maarten R Hillen, Aike A Kruize, Stephan Meller, Bernhard Homey, Glennda M Smithson, Timothy R D J Radstake, Joel A G van Roon
Introduction T follicular helper (Tfh)-cells play a critical role in germinal center formation and B-cell activation, both hallmarks of primary Sjögren's syndrome (pSS). CCR9-expressing Th-cells have "Tfh-like" characteristics and are increased at mucosa-associated sites in several inflammatory conditions. Because of their unique characteristics and limited evaluation we investigated the local and systemic CCL25/CCR9-axis in pSS. Methods CCL25 protein and mRNA levels and CCR9+ Th-cells were assessed in labial salivary glands (LSG) of pSS and non-Sjögren's sicca (nSS) patients and their correlation with inflammatory and clinical parameters was evaluated...
June 16, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28620729/subchronic-arsenism-disorders-mrna-expression-of-cytokines-and-immunoglobulins-in-the-intestinal-tract-of-the-cock
#16
Hongjing Zhao, Yu Wang, Zixin Liu, Juanjuan Liu, Yuan Xue, Mingwei Xing
Provision of feed containing arsenic may cause intestinal flora imbalance and consequently, the dysfunction of immunological protection of the cock. To understand the intricate tuning of immune responses in the intestinal tract elicited by subchronic arsenism, a cock model (1-day-old Hy-line cocks) was established by subjecting cocks to different environmentally relevant concentrations of arsenic in the diet for 90 days. Intestinal cytokine and immunoglobulin (Ig) messenger RNA (mRNA) expression levels were determined using real-time PCR on days 30, 60, and 90...
June 16, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28619521/overview-of-long-non-coding-rna-and-mrna-expression-in-response-to-methamphetamine-treatment-in-vitro
#17
Kun Xiong, Lingling Long, Xudong Zhang, Hongke Qu, Haixiao Deng, Yanjun Ding, Jifeng Cai, Shuchao Wang, Mi Wang, Lvshuang Liao, Jufang Huang, Chunxia Yi, Jie Yan
Long non-coding RNAs (lncRNAs) display multiple functions including regulation of neuronal injury. However, their impact in methamphetamine (METH)-induced neurotoxicity has rarely been reported. Here, using microarray analysis, we investigated the expression profiling of lncRNAs and mRNAs in primary cultured prefrontal cortical neurons after METH treatment. We observed a difference in lncRNA and mRNA expression between the experimental and sham control groups. Using bioinformatics, we analyzed the highest enriched gene ontology (GO) terms of biological process, cellular component, and molecular function, and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway and pathway network analysis...
June 12, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28618251/overexpression-of-fadd-and-caspase-8-inhibits-proliferation-and-promotes-apoptosis-of-human-glioblastoma-cells
#18
Hong-Bin Wang, Tao Li, Dong-Zhou Ma, Yan-Xin Ji, Hua Zhi
INTRODUCTION: The study aimed at exploring the effects involved in Fas-Associated protein with Death Domain (FADD) expression and cysteine-aspartic acid specific protease-8 (Caspase-8) in relation to the proliferation and apoptosis of human glioblastoma (GBM) cells. MATERIAL AND METHODS: 93 GBM tissues and 64 normal brain tissues were the central mediums used for the investigation of the study. Cultured human GBM SC189 cells were divided into separate groups including the blank negative control (NC), FADD and Caspase-8 groups...
June 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28616752/effects-of-c-myc-gene-silencing-on-interleukin-1%C3%AE-induced-rat-chondrocyte-cell-proliferation-apoptosis-and-cytokine-expression
#19
Jian Zou, Xiao-Lin Li, Zhong-Min Shi, Jian-Feng Xue
This study explores the effects of C-myc gene silencing on cell proliferation, apoptosis and cytokine expression in interleukin (IL)-1β-induced rat chondrocytes. Primary chondrocytes were obtained from 40 Sprague-Dawley rats. For in vitro C-myc3-shRNA transfection, chondrocytes were assigned to a blank 1, model 1, IL-1β + C-myc3-shRNA, C-myc3-shRNA, (IL-1β + C-myc3-shRNA) + C-myc overexpression, C-myc3-shRNA + C-myc overexpression or IL-1β + C-myc-Con group. Western blotting and quantitative real-time polymerase chain reaction (qRT-PCR) were performed to detect C-myc, PCNA and cyclin D1 mRNA and protein expression...
June 14, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28615029/micrornas-control-mrna-fate-by-compartmentalization-based-on-3-utr-length-in-male-germ-cells
#20
Ying Zhang, Chong Tang, Tian Yu, Ruirui Zhang, Huili Zheng, Wei Yan
BACKGROUND: Post-transcriptional regulation of gene expression can be achieved through the control of mRNA stability, cytoplasmic compartmentalization, 3' UTR length and translational efficacy. Spermiogenesis, a process through which haploid male germ cells differentiate into spermatozoa, represents an ideal model for studying post-transcriptional regulation in vivo because it involves a large number of transcripts that are physically sequestered in ribonucleoprotein particles (RNPs) and thus subjected to delayed translation...
June 15, 2017: Genome Biology
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