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https://www.readbyqxmd.com/read/28921827/the-mir-203-inhibits-cell-proliferation-invasion-and-migration-of-non-small-cell-lung-cancer-by-downregulating-rgs17
#1
Yongbing Chi, Qinqin Jin, Xinghui Liu, Limin Xu, Xiaoxue He, Yan Shen, Qiang Zhou, Jue Zhang, Mingming Jin
The involvement of the RGS17 oncogene in promotion of non-small cell lung cancer (NSCLC) has been reported, but the regulation mechanism in NSCLC remains unclear. MicroRNAs (miRNAs) negatively regulate gene expression, and their dysregulation has been implicated in tumorigenesis. To understand the role of microRNAs in RGS17-induced NSCLC, we showed that miR-203 was downregulated during tumorigenesis, and inhibited the proliferation and invasion of lung cancer cells. We then determined if miR-203 regulated NSCLC by targeting RGS17...
September 16, 2017: Cancer Science
https://www.readbyqxmd.com/read/28919920/virulence-determinants-of-west-nile-virus-how-can-these-be-used-for-vaccine-design
#2
REVIEW
Jaclyn A Kaiser, Tian Wang, Alan Dt Barrett
West Nile virus (WNV), a neurotropic mosquito-borne flavivirus, has become endemic in the USA and parts of Europe since 1999. There is no licensed WNV vaccine for humans. Considering the robust immunity from immunization with live, attenuated vaccines, a live WNV vaccine is an ideal platform for disease control. Animal and mosquito studies have identified a number of candidate attenuating mutations, including the structural proteins premembrane/membrane and envelope, and the nonstructural proteins NS1, NS2A, NS3, NS4A, NS4B and NS5, and the 3' UTR...
May 2017: Future Virology
https://www.readbyqxmd.com/read/28918059/regulatory-role-of-the-microrna-29b-il-6-signaling-in-the-formation-of-vascular-mimicry
#3
Jian-Hong Fang, Zhi-Yuan Zheng, Jin-Yu Liu, Chen Xie, Zi-Jun Zhang, Shi-Mei Zhuang
Vascular mimicry (VM) is a critical complement for microcirculation and is implicated in tumor progression. We showed that IL-6 derived from tumor cells and stroma cells promoted tumor cells to form a VM structure, whereas blocking the IL-6 signaling by RNA interference, IL-6-neutralizing antibody, or STAT3 inhibitor suppressed the VM formation of tumor cells. Mechanism investigations revealed that IL-6 stimulated VM formation by activating STAT3, in turn upregulating VE-cadherin expression and MMP2 activity...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28918015/a-microrna124-target-sequence-restores-astrocyte-specificity-of-gfaabc1d-driven-transgene-expression-in-aav-mediated-gene-transfer
#4
Grit Taschenberger, Julia Tereshchenko, Sebastian Kügler
Experimentally restricting transgene expression exclusively to astrocytes has proven difficult. Using adeno-associated-virus-mediated gene transfer, we assessed two commonly used glial fibrillary acidic protein promoters: the full-length version gfa2 (2,210-bp human glial fibrillary acidic protein [GFAP] promoter) and the truncated variant gfaABC1D (681-bp GFAP promoter). The capacity to drive efficient, but also cell-type specific, expression of the EGFP in astrocytes was tested both in vitro in rat primary cortical cultures as well as in vivo in the rat striatum...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28917037/identification-and-characterization-of-proteins-that-bind-to-selenoprotein-3-utrs
#5
Eric M Cockman, Donna M Driscoll
This chapter explains the use of RNase-assisted RNA chromatography. RNA affinity chromatography is a powerful technique that is used to isolate and identify proteins that bind to a specific RNA ligand. The RNA of interest is attached to beads before protein lysates are passed over the column. In traditional RNA chromatography, bound proteins are eluted with high salt or harsh detergent, which can also release proteins that are nonspecifically bound to the beads. To avoid this, a new method was developed in which RNases are used to cleave RNA from the beads, releasing only RNA binding proteins (RBPs) and leaving behind proteins that are bound to the beads (Michlewski and Caceres, RNA 16(8):1673-1678, 2010)...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28916539/comparative-analysis-of-alternative-polyadenylation-in-s-cerevisiae-and-s-pombe
#6
Xiaochuan Liu, Mainul Hoque, Marc Larochelle, Jean-François Lemay, Nathan Yurko, James L Manley, François Bachand, Bin Tian
Alternative polyadenylation (APA) is a widespread mechanism that generates mRNA isoforms with distinct properties. Here we have systematically mapped and compared cleavage and polyadenylation sites (PASs) in two yeast species, S. cerevisiae and S. pombe Although >80% of the mRNA genes in each species were found to display APA, S. pombe showed greater 3' UTR size differences among APA isoforms than did S. cerevisiae PASs in different locations of gene are surrounded with distinct sequences in both species and are often associated with motifs involved in the Nrd1-Nab3-Sen1 termination pathway...
September 15, 2017: Genome Research
https://www.readbyqxmd.com/read/28916356/molecular-characterization-of-polymeric-immunoglobulin-receptor-and-expression-response-to-aeromonas-hydrophila-challenge-in-carassius-auratus
#7
Li Wang, Jie Zhang, Xianghui Kong, Chao Pei, Xianliang Zhao, Li Li
The polymeric immunoglobulin receptor (pIgR) plays a pivotal role in mucosal immune response by transporting polymeric immunoglobulins onto the surface of mucosal epithelia to protect animals from invading pathogens. In this study, the full-length cDNA of pIgR was firstly cloned in Qihe crucian carp (Carassius auratus), hereafter designated as CapIgR, by using reverse transcription polymerase chain reaction and rapid amplification of cDNA ends. The molecular characterization and expression of CapIgR were investigated...
September 12, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28915828/microrna-488-and-920-regulate-the-production-of-proinflammatory-cytokines-in-acute-gouty-arthritis
#8
Weidong Zhou, Ying Wang, Rongfeng Wu, Yan He, Qun Su, Guixiu Shi
BACKGROUND: Gout is considered one of the most painful acute conditions caused by deposition of monosodium urate (MSU) crystals within joints. Recent studies have shown that interleukin (IL)-1β is a key inflammatory mediator in acute gouty arthritis (GA), and its level is regulated by microRNAs (miRNAs). However, the molecular mechanisms of the regulation remain unclear. METHODS: A miRNA microarray was used to analyze the miRNA expression profiles in peripheral white blood cells (WBCs) of patients with GA...
September 15, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28915608/a-genome-wide-microrna-profiling-indicates-mir-424-5p-and-mir-503-5p-as-regulators-of-alk-expression-in-neuroblastoma
#9
Marilena De Mariano, Sara Stigliani, Stefano Moretti, Federica Parodi, Michela Croce, Cinzia Bernardi, Aldo Pagano, Gian Paolo Tonini, Silvano Ferrini, Luca Longo
The discovery of missense mutations of ALK gene identified this receptor tyrosine kinase as a therapeutic target in neuroblastoma (NB). Moreover, a high level of ALK protein has been associated with metastatic NB cases and with a worse prognosis, suggesting that also ALK overexpression is involved in NB tumorigenesis. Since miRNAs play key roles in the regulation of gene expression we aimed at identifying those miRNAs that can regulate ALK in NB. We therefore analyzed the genome-wide expression profile of miRNAs in two sample sets of 16 NB cell lines and 22 NB samples by using miRNA microarrays...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28912250/role-of-microrna-423-5p-in-post-transcriptional-regulation-of-the-intestinal-riboflavin-transporter-3
#10
Ram Lakhan, Veedamali S Subramanian, Hamid M Said
Riboflavin (RF) is essential for normal cellular functions and health. Humans obtain RF from exogenous sources via intestinal absorption that involves a highly specific carrier-mediated process. We have recently established that the riboflavin transporter-3 (RFVT3) is vital for the normal intestinal RF uptake process, and have characterized certain aspects of its transcriptional regulation. Little is known, however, about how this transporter is regulated at the post-transcriptional level. We address this issue focusing on the role of microRNAs...
September 14, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28910745/mir-200bc-429-cluster-alleviates-inflammation-in-iga-nephropathy-by-targeting-tweak-fn14
#11
Yong Guo, Yuanjiang Liao
Immunoglobulin A nephropathy (IgAN) is one of the most common glomerular diseases worldwide. Various studies have identified a host of microRNAs (miRNAs) abnormally expressed in IgAN and might affect the pathogenesis and progression of IgAN. However, miR-200bc/429 cluster in the pathopoiesis of IgAN remains poorly understood. For this study, we found that miR-200bc/429 cluster is downregulated in IgAN tissues and IgAN podocytes and HK2 cells compared with their matched controls respectively. In addition, overexpression of miR-200bc/429 cluster in IgAN podocytes and HK2 cells could attenuate the release of inflammatory cytokines MCP-1, IL-6 and RANTES...
September 11, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28904856/mir-101-inhibits-ovarian-carcinogenesis-by-repressing-the-expression-of-brain-derived-neurotrophic-factor
#12
Ying Xu, Lei Xu, Jianbin Zheng, Lei Geng, Shuping Zhao
Ovarian cancer is one of the most lethal malignant gynecological tumors as a result of difficulties in early-stage detection and a lack of effective treatments for patients with advanced or recurrent cancer. In the present study, we aimed to explore whether some of the microRNA (miRNA) content of serum might be related to ovarian cancer, as well as the role of these miRNAs and their intercellular transport via exosomes in ovarian cancer. We first detected the expression of six candidate miRNAs in ovarian cancer tissues and adjacent nontumor ovarian samples from 36 patients and confirmed the altered expression of four miRNAs...
September 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28904016/lncrna-ak017368-promotes-proliferation-and-suppresses-differentiation-of-myoblasts-in-skeletal-muscle-development-by-attenuating-the-function-of-mir-30c
#13
Tingting Liang, Bo Zhou, Lei Shi, Han Wang, Qingpo Chu, Feilong Xu, Yuan Li, Ruonan Chen, Chunyan Shen, Allan P Schinckel
Long noncoding RNAs (lncRNAs) have been reported to play diverse roles in biologic and pathologic processes, including myogenesis. We found that lncRNA AK017368 is highly expressed in skeletal muscle cells. Functional analyses showed that overexpression of AK017368 promoted proliferation and restrained differentiation of myoblasts; whereas inhibition of AK017368 had completely opposite effects in vitro In mice, knockdown of AK017368 promoted muscle hypertrophy in vivo RNA molecules of AK017368 acted mechanistically as competing endogenous RNAs to target micro-RNA (miR)-30c, which was supported by the results of bioinformatics analyses and dual-luciferase reporter assays...
September 13, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28902356/mir-378-functions-as-an-onco-mirna-by-targeting-the-st7l-wnt-%C3%AE-catenin-pathway-in-cervical-cancer
#14
Shengjie Li, Fengxia Yang, Meiyan Wang, Wenjun Cao, Zhen Yang
Upregulation or downregulation of microRNAs (miRNAs) has been identified in human cervical cancer (CC). However, the character and function of miR-378 in CC remains unknown. In the present study, the authors demonstrated that miR-378 was upregulated in CC used the reverse transcriptase-quantitative polymerase chain reaction (RT-qPCR) assay, and promoted cell proliferation by accelerating the progress of cell cycle and repressing cell apoptosis in CC cells. The predicted target genes of miR-378 were determined by enhanced green fluorescent protein (EGFP) reporter assays, RT-qPCR assay and western blot analysis...
August 30, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28901520/puerarin-promotes-the-viability-and-differentiation-of-mc3t3%C3%A2-e1-cells-by-mir%C3%A2-204%C3%A2-regulated-runx2-upregulation
#15
Xiu-Qin Zhan, Xiang-Wei Zeng, Ying-Ying Zhang, Qian Feng, Feng-Ming Zhao, Ze-Qun Jiang, Chao Sun
Puerarin has attracted increasing attention because of its beneficial effects on anti‑osteoporosis, but the molecular mechanisms underlying its actions on osteoblasts are not fully understood. The current study aimed to investigate the effect of puerarin on the cell viability and differentiation of mouse MC3T3‑E1 osteoblast‑like cells in vitro and its underlying mechanisms. The results indicated that 0.01, 0.1 and 1 mg/ml puerarin significantly promoted the viability of osteoblasts, enhanced alkaline phosphatase (ALP) activity and increased the expression of transforming growth factor‑β1, Smad2, Smad3 and Runt‑related transcription factor (Runx)2...
August 29, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28901497/regulation-of-uhrf1-by-microrna-378-modulates-medulloblastoma-cell-proliferation-and-apoptosis
#16
Zhen-Yu Zhang, Bin Zhu, Xin-Wei Zhao, Yun-Bo Zhan, Jian-Ji Bao, Jin-Qiao Zhou, Feng-Jiang Zhang, Bin Yu, Jun Liu, Yan-Min Wang, Ya-Hui Bai, Jin Hong, Xian-Zhi Liu
A previous study revealed that ubiquitin-like with PHD and RING finger domains 1 (UHRF1) promoted cell proliferation and was a potential biomarker in medulloblastoma (MB). In the present study, we reported that miR-378 inhibited the expression of UHRF1 to affect the proliferation of MB through competitive binding to the same region of its 3'-UTR. We found that the expression of miR-378 was significantly downregulated in MB tissues and inversely correlated with the expression of UHRF1. Western blot analysis revealed that overexpression of miR-378 led to the suppression of UHRF1...
September 4, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28901494/molecular-mechanisms-of-pathogenesis-in-hepatocellular-carcinoma-revealed-by-rna%C3%A2-sequencing
#17
Yao Liu, Zhe Yang, Feng Du, Qiao Yang, Jie Hou, Xiaohong Yan, Yi Geng, Yaning Zhao, Hua Wang
The present study aimed to explore the underlying molecular mechanisms of hepatocellular carcinoma (HCC). RNA‑sequencing profiles GSM629264 and GSM629265, from the GSE25599 data set, were downloaded from the Gene Expression Omnibus database and processed by quality evaluation. GSM629264 and GSM629265 were from HCC and adjacent non‑cancerous tissues, respectively. TopHat software was used for alignment analysis, followed by the detection of novel splicing sites. In addition, the Cufflinks software package was used to analyze gene expressions, and the Cuffdiff program was used to screen for differently expressed genes (DEGs) and differentially expressed splicing variants...
September 11, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28901393/lps%C3%A2-induced-downregulation-of-microrna%C3%A2-204-211-upregulates-and-stabilizes-angiopoietin%C3%A2-1-mrna-in-ea-hy926-endothelial-cells
#18
Yijun Zhang, Caixia Gan, Jiangbo Zhang, Dong Chen
Angiopoietin‑1 (ANG‑1), a ligand of the endothelial cell‑specific TIE2 surface receptor, acts in a complementary and coordinated manner with vascular endothelial growth factor during the process of angiogenesis. ANG‑1 can be used as a clinically informative biomarker of disease severity and outcome in severe sepsis. The epithelium‑specific Ets transcription factor 1 can activate ANG‑1 transcription in the setting of inflammation; however, relatively little is known about the regulation of ANG‑1 by microRNAs (miRs)...
August 30, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28900423/esre-a-yigp-locus-encoded-transcript-is-a-3-utr-srna-involved-in-the-respiratory-chain-of-e-coli
#19
Hui Xia, Xichen Yang, Qiongwei Tang, Jiang Ye, Haizhen Wu, Huizhan Zhang
The yigP locus is widely conserved among γ-proteobacteria. Mutation of the yigP locus impacts aerobic growth of Gram-negative bacteria. However, the underlying mechanism of how the yigP locus influences aerobic growth remains largely unknown. Here, we demonstrated that the yigP locus in Escherichia coli encodes two transcripts; the mRNA of ubiquinone biosynthesis protein, UbiJ, and the 3' untranslated region small regulatory RNA (sRNA), EsrE. EsrE is an independent transcript that is transcribed using an internal promoter of the yigP locus...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28899784/mir-181b-regulates-steatosis-in-nonalcoholic-fatty-liver-disease-via-targeting-sirt1
#20
Yunxia Wang, Kongxi Zhu, Weihua Yu, Hongjuan Wang, Lan Liu, Qiong Wu, Shuai Li, Jianqiang Guo
Non-alcoholic fatty liver diseases (NAFLD) is one of the leading cause of chronic liver diseases in the world. However, the pathogenesis of NAFLD is still unclear. Emerging studies have demonstrated that microRNAs (miRs) are profoundly involved in NAFLD and related metabolic diseases. Here, we investigated the mechanisms by which miR-181b influences NAFLD via direct targeting SIRT1. The expression of miR181b was up-regulated while SIRT1 was down-regulated in both human NAFLD patients and high fat diet (HFD) induced NAFDL mice model...
September 9, 2017: Biochemical and Biophysical Research Communications
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