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https://www.readbyqxmd.com/read/29687002/identification-of-key-candidate-proteins-and-pathways-associated-with-temozolomide-resistance-in-glioblastoma-based-on-subcellular-proteomics-and-bioinformatical-analysis
#1
Guo-Zhong Yi, Wei Xiang, Wen-Yan Feng, Zi-Yang Chen, Yao-Min Li, Sheng-Ze Deng, Man-Lan Guo, Liang Zhao, Xue-Gang Sun, Min-Yi He, Song-Tao Qi, Ya-Wei Liu
TMZ resistance remains one of the main reasons why treatment of glioblastoma (GBM) fails. In order to investigate the underlying proteins and pathways associated with TMZ resistance, we conducted a cytoplasmic proteome research of U87 cells treated with TMZ for 1 week, followed by differentially expressed proteins (DEPs) screening, KEGG pathway analysis, protein-protein interaction (PPI) network construction, and validation of key candidate proteins in TCGA dataset. A total of 161 DEPs including 65 upregulated proteins and 96 downregulated proteins were identified...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29642538/ddx5-rna-helicases-emerging-roles-in-viral-infection
#2
REVIEW
Wenyu Cheng, Guohua Chen, Huaijie Jia, Xiaobing He, Zhizhong Jing
Asp-Glu-Ala-Asp (DEAD)-box polypeptide 5 (DDX5), also called p68, is a prototypical member of the large ATP-dependent RNA helicases family and is known to participate in all aspects of RNA metabolism ranging from transcription to translation, RNA decay, and miRNA processing. The roles of DDX5 in cell cycle regulation, tumorigenesis, apoptosis, cancer development, adipogenesis, Wnt-β-catenin signaling, and viral infection have been established. Several RNA viruses have been reported to hijack DDX5 to facilitate various steps of their replication cycles...
April 9, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29622601/dual-role-of-the-rna-helicase-ddx5-in-post-transcriptional-regulation-of-myelin-basic-protein-in-oligodendrocytes
#3
Peter Hoch-Kraft, Robin White, Stefan Tenzer, Eva-Maria Krämer-Albers, Jacqueline Trotter, Constantin Gonsior
In the central nervous system, oligodendroglial expression of Myelin Basic Protein (MBP) is crucial for the assembly and structure of the myelin sheath. MBP synthesis is tightly regulated in space and time, particularly on the post-transcriptional level. We have identified the DEAD-box RNA helicase DDX5 (alias p68) in a complex with Mbp mRNA in oligodendroglial cells. Expression of DDX5 is highest in progenitor cells and immature oligodendrocytes, where it localizes to heterogeneous populations of cytoplasmic ribonucleoprotein (RNP) complexes associated with Mbp mRNA in the cell body and processes...
April 5, 2018: Journal of Cell Science
https://www.readbyqxmd.com/read/29540201/long-non-coding-rna-miat-promotes-gastric-cancer-growth-and-metastasis-through-regulation-of-mir-141-ddx5-pathway
#4
Min Sha, Mei Lin, Jia Wang, Jun Ye, Jie Xu, Ning Xu, Junxing Huang
BACKGROUND: The objective of this study was to investigate the role and mechanism of long non-coding RNA MIAT in gastric cancer (GC). METHODS: Real-time PCR was used to determine MIAT level in 120 GC tissues, and in two gastric cancer cell lines. The clinicopathological characteristics of MIAT in GC patients were analyzed. Small interfering RNA specific for MIAT (si-MIAT) and lentivector for si-MIAT was performed to down-regulate MIAT expression in GC cells and in animal tumor model, respectively...
March 14, 2018: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29522752/rna-helicase-ddx5-participates-in-oxldl-induced-macrophage-scavenger-receptor-1-expression-by-suppressing-mrna-degradation
#5
Wenting Zhao, Zhen Wang, Zewei Sun, Yuxian He, Dongdong Jian, Xiaotong Hu, Wang Zhang, Liangrong Zheng
The DEAD box protein DDX5, an ATP-dependent RNA helicase, plays an important role in transcriptional regulation and is associated with solid tumors and leukemia. However, its role in oxLDL-induced lipid uptake in macrophages remains unclear. In this study, we detected the expression of DDX5 mRNA and protein in oxidized low-density lipoprotein (oxLDL)-treated human primary macrophages that were induced from monocytes isolated from human peripheral blood with or without several chemical inhibitors using quantitative real-time PCR (qRT-PCR) or Western blotting...
May 15, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29374155/kruppel-like-factor-4-dependent-staufen1-mediated-mrna-decay-regulates-cortical-neurogenesis
#6
Byoung-San Moon, Jinlun Bai, Mingyang Cai, Chunming Liu, Jiandang Shi, Wange Lu
Kruppel-like factor 4 (Klf4) is a zinc-finger-containing protein that plays a critical role in diverse cellular physiology. While most of these functions attribute to its role as a transcription factor, it is postulated that Klf4 may play a role other than transcriptional regulation. Here we demonstrate that Klf4 loss in neural progenitor cells (NPCs) leads to increased neurogenesis and reduced self-renewal in mice. In addition, Klf4 interacts with RNA-binding protein Staufen1 (Stau1) and RNA helicase Ddx5/17...
January 26, 2018: Nature Communications
https://www.readbyqxmd.com/read/29227193/ddx5-p68-associated-lncrna-loc284454-is-differentially-expressed-in-human-cancers-and-modulates-gene-expression
#7
Monalisa Das, Arun Renganathan, Shrinivas Nivrutti Dighe, Utsa Bhaduri, Abhijith Shettar, Geetashree Mukherjee, Paturu Kondaiah, Manchanahalli R Satyanarayana Rao
Long non-coding RNAs (lncRNAs) are emerging as important players in regulation of gene expression in higher eukaryotes. DDX5/p68 RNA helicase protein which is involved in splicing of precursor mRNAs also interacts with lncRNAs like, SRA and mrhl, to modulate gene expression. We performed RIP-seq analysis in HEK293T cells to identify the complete repertoire of DDX5/p68 interacting transcripts including 73 single exonic (SE) lncRNAs. The LOC284454 lncRNA is the second top hit of the list of SE lncRNAs which we have characterized in detail for its molecular features and cellular functions...
February 1, 2018: RNA Biology
https://www.readbyqxmd.com/read/29146961/identification-of-host-dead-box-rna-helicases-that-regulate-cellular-tropism-of-oncolytic-myxoma-virus-in-human-cancer-cells
#8
Masmudur M Rahman, Eugenie Bagdassarian, Mohamed A M Ali, Grant McFadden
Myxoma virus (MYXV), a Leporipoxvirus, is being developed as an oncolytic virotherapeutic for the treatment of a variety of human cancers. MYXV tropism for human cancer cells is largely mediated by intracellular signaling networks that regulate viral replication or innate antiviral response pathways. Thus, MYXV is fully or partially permissive for the majority of human cancer cells that harbor defects in antiviral signaling, but a minority are nonpermissive because the virus infection aborts before its completion...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29062863/the-vacuolar-h-atpase-v-0-subunit-d-2-is-associated-with-chondrocyte-hypertrophy-and-supports-chondrocyte-differentiation
#9
Babatunde A Ayodele, Michiko Mirams, Charles N Pagel, Eleanor J Mackie
Chondrocyte hypertrophy makes important contributions to bone development and growth. We have investigated a number of novel cartilage genes identified in a recent transcriptomic study to determine whether they are differentially expressed between different zones of equine foetal growth cartilage. Twelve genes ( ATP6V0D2 , BAK1 , DDX5 , GNB1 , PIP4K2A , RAP1B , RPS7 , SRSF3 , SUB1 , TMSB4 , TPI1 and WSB2 ) were found to be more highly expressed in the zone of hypertrophic chondrocytes than in the reserve or proliferative zones, whereas FOXA3 and SERPINA1 were expressed at lower levels in the hypertrophic zone than in the reserve zone...
December 2017: Bone Reports
https://www.readbyqxmd.com/read/29057251/the-rna-helicase-ddx5-is-a-reprogramming-roadblock
#10
EDITORIAL
Cyril F Bourgeois, Didier Auboeuf
No abstract text is available yet for this article.
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28871057/kh-type-splicing-regulatory-protein-is-a-new-component-of-chromatoid-body
#11
Huijuan Zhang, Guishuan Wang, Lin Liu, Xiaolin Liang, Yu Lin, Yi-Yu Lin, Chu-Fang Chou, Mo-Fang Liu, Hefeng Huang, Fei Sun
The chromatoid body (CB) is a specific cloud-like structure in the cytoplasm of haploid spermatids. Recent findings indicate that CB is identified as a male germ cell specific RNA storage and processing center, but its function has remained elusive for decades. In somatic cells, KH-type splicing regulatory protein (KSRP) is involved in regulating gene expression and maturation of select microRNAs (miRNAs). However, the function of KSRP in spermatogenesis remains unclear. In this study, we showed that KSRP partly localizes in CB, as a component of CB...
September 4, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28758620/antibodies-against-the-mono-methylated-arginine-glycine-repeat-mma-rg-of-the-epstein-barr-virus-nuclear-antigen-2-ebna2-identify-potential-cellular-proteins-targeted-in-viral-transformation
#12
Hiresh Ayoubian, Thomas Fröhlich, Dagmar Pogodski, Andrew Flatley, Elisabeth Kremmer, Aloys Schepers, Regina Feederle, Georg J Arnold, Friedrich A Grässer
The Epstein-Barr virus is a human herpes virus with oncogenic potential. The virus-encoded nuclear antigen 2 (EBNA2) is a key mediator of viral tumorigenesis. EBNA2 features an arginine-glycine (RG) repeat at amino acids (aa)339-354 that is essential for the transformation of lymphocytes and contains symmetrically (SDMA) and asymmetrically (ADMA) di-methylated arginine residues. The SDMA-modified EBNA2 binds the survival motor neuron protein (SMN), thus mimicking SMD3, a cellular SDMA-containing protein that interacts with SMN...
August 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28751441/miromics-and-proteomics-reveal-a-mir-296-3p-prkca-fak-ras-c-myc-feedback-loop-modulated-by-hdgf-ddx5-%C3%AE-catenin-complex-in-lung-adenocarcinoma
#13
Qiaofen Fu, Xin Song, Zhen Liu, Xiaojie Deng, Rongcheng Luo, Chunlei Ge, Ruilei Li, Zhen Li, Mengyang Zhao, Yiyu Chen, Xian Lin, Qianbing Zhang, Weiyi Fang
Purpose: This study was performed to identify the detailed mechanisms by which miR-296-3p functions as a tumor suppressor to prevent lung adenocarcinoma (LADC) cell growth, metastasis, and chemoresistance.Experimental Design: The miR-296-3p expression was examined by real-time PCR and in situ hybridization. MTT, EdU incorporation, Transwell assays, and MTT cytotoxicity were respectively performed for cell proliferation, metastasis, and chemoresistance; Western blotting was performed to analyze the pathways by miR-296-3p and HDGF/DDX5 complex...
October 15, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28740544/interleukin-32%C3%AE-inhibits-endothelial-inflammation-vascular-smooth-muscle-cell-activation-and-atherosclerosis-by-upregulating-timp3-and-reck-through-suppressing-microrna-205-biogenesis
#14
Dong Ju Son, Yu Yeon Jung, Young Sik Seo, Heonyong Park, Dong Hun Lee, Sanghyeon Kim, Yoon-Seok Roh, Sang Bae Han, Do Young Yoon, Jin Tae Hong
Interleukin-32 (IL-32) is a multifaceted cytokine that promotes inflammation and regulates vascular endothelial cell behavior. Although some IL-32 isoforms have been reported to contribute to vascular inflammation and atherosclerosis, the functional role of IL-32α in vascular inflammation and atherogenesis has not been studied. Methods: IL-32α function was assessed in cells with transient IL-32α overexpression or treated with recombinant human IL-32α by western blotting and mRNA expression analysis. Vascular smooth muscle cell (VSMC) proliferation and migration was examined by BrdU incorporation and wound healing assays, respectively...
2017: Theranostics
https://www.readbyqxmd.com/read/28557706/downregulation-of-p68-rna-helicase-ddx5-activates-a-survival-pathway-involving-mtor-and-mdm2-signals
#15
M Kokolo, M Bach-Elias
The DEAD box p68 RNA helicase (DDX5) is required to manipulate RNA structures implicated in mRNA/rRNA processing and transcript export, and acts as a co-activator for a range of transcription factors. Previous research has indicated that p68 RNA helicase may also be important in tumour development. Wild-type HeLa and stable HeLa (clone 13) cell cultures containing RNAi-mediated depletion of p68 RNA helicase induced by doxycycline (DOX) were used to study how the p68 RNA helicase affects the mTOR cell signalling pathway...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/28516729/proteome-analysis-of-duck-tembusu-virus-dtmuv-infected-bhk-21-cells
#16
Xin Sun, Shengyu Wang, Xian Lin, Lianzhong Zhao, Dan Zhang, Chenyang Yi, Xiaomei Sun, Huanchun Chen, Meilin Jin
Duck Tembusu virus (DTMUV) is a newly emerging pathogenic flavivirus that has caused huge economic losses to the duck industry in China since 2010. Moreover, the infection has spread rapidly, posing a potential public health concern. In this study, iTRAQ approach was first used to quantitatively identify differentially expressed cellular proteins in DTMUV-infected BHK-21 cells which are usually employed to produce veterinary vaccines for DTMUV, as well as other flaviviruses by serial passage. We identified 192 differentially expressed cellular proteins, including 11 upregulated and eight downregulated proteins at 24 h postinfection (hpi), as well as 25 upregulated and 151 downregulated proteins at 48 hpi, of which TLR9, DDX3X, and DDX5 may play important roles in virus propagation...
June 2017: Proteomics
https://www.readbyqxmd.com/read/28443473/proteomic-identification-of-potential-biomarkers-for-cervical-squamous-cell-carcinoma-and-human-papillomavirus-infection
#17
Song Qing, Wuniqiemu Tulake, Mingfang Ru, Xiaohong Li, Reziwanguli Yuemaier, Dilare Lidifu, Aierken Rouzibilali, Axiangu Hasimu, Yun Yang, Reziya Rouziahong, Halmurat Upur, Abulizi Abudula
It is known that high-risk human papillomavirus infection is the main etiological factor in cervical carcinogenesis. However, human papillomavirus screening is not sufficient for early diagnosis. In this study, we aimed to identify potential biomarkers common to cervical carcinoma and human papillomavirus infection by proteomics for human papillomavirus-based early diagnosis and prognosis. To this end, we collected 76 cases of fresh cervical tissues and 116 cases of paraffin-embedded tissue slices, diagnosed as cervical squamous cell carcinoma, cervical intraepithelial neoplasia II-III, or normal cervix from ethnic Uighur and Han women...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28424484/the-tandem-agenet-domain-of-fragile-x-mental-retardation-protein-interacts-with-fus
#18
Qingzhong He, Wei Ge
The tandem Agenet domain (TAD) of fragile X mental retardation protein (FMRP) protein is considered to be a member of the methyl-lysine-binding Tudor domain "Royal family". Several groups have reported that the TAD binds with methylated histones and plays a role in DNA damage responses. FMRP is a RNA-binding protein predominantly resident in cytoplasm. Therefore, in this study, we identified DDX5, FUS, EWSR1 and LSM14A as TAD-interacting proteins sensitive to F32L and/or Y96L mutation by pull-down assays and mass spectrometry...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28411202/characterization-of-the-mammalian-dead-box-protein-ddx5-reveals-functional-conservation-with-s-cerevisiae-ortholog-dbp2-in-transcriptional-control-and-glucose-metabolism
#19
COMPARATIVE STUDY
Zheng Xing, Siwen Wang, Elizabeth J Tran
DEAD-box proteins are a class of nonprocessive RNA helicases that dynamically modulate the structure of RNA and ribonucleoprotein complexes (RNPs). However, the precise roles of individual members are not well understood. Work from our laboratory revealed that the DEAD-box protein Dbp2 in Saccharomyces cerevisiae is an active RNA helicase in vitro that functions in transcription by promoting mRNP assembly, repressing cryptic transcription initiation, and regulating long noncoding RNA activity. Interestingly, Dbp2 is also linked to glucose sensing and hexose transporter gene expression...
July 2017: RNA
https://www.readbyqxmd.com/read/28388433/rna-helicase-ddx5-inhibits-reprogramming-to-pluripotency-by-mirna-based-repression-of-rybp-and-its-prc1-dependent-and-independent-functions
#20
Huanhuan Li, Ping Lai, Jinping Jia, Yawei Song, Qing Xia, Kaimeng Huang, Na He, Wangfang Ping, Jiayu Chen, Zhongzhou Yang, Jiao Li, Mingze Yao, Xiaotao Dong, Jicheng Zhao, Chunhui Hou, Miguel A Esteban, Shaorong Gao, Duanqing Pei, Andrew P Hutchins, Hongjie Yao
No abstract text is available yet for this article.
April 6, 2017: Cell Stem Cell
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