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https://www.readbyqxmd.com/read/29352299/bunyavirus-requirement-for-endosomal-k-reveals-new-roles-of-cellular-ion-channels-during-infection
#1
Samantha Hover, Becky Foster, Juan Fontana, Alain Kohl, Steve A N Goldstein, John N Barr, Jamel Mankouri
In order to multiply and cause disease a virus must transport its genome from outside the cell into the cytosol, most commonly achieved through the endocytic network. Endosomes transport virus particles to specific cellular destinations and viruses exploit the changing environment of maturing endocytic vesicles as triggers to mediate genome release. Previously we demonstrated that several bunyaviruses, which comprise the largest family of negative sense RNA viruses, require the activity of cellular potassium (K+) channels to cause productive infection...
January 19, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29351231/molecular-network-based-identification-of-competing-endogenous-rnas-in-thyroid-carcinoma
#2
Minjia Lu, Xingyu Xu, Baohang Xi, Qi Dai, Chenli Li, Li Su, Xiaonan Zhou, Min Tang, Yuhua Yao, Jialiang Yang
RNAs may act as competing endogenous RNAs (ceRNAs), a critical mechanism in determining gene expression regulations in many cancers. However, the roles of ceRNAs in thyroid carcinoma remains elusive. In this study, we have developed a novel pipeline called Molecular Network-based Identification of ceRNA (MNIceRNA) to identify ceRNAs in thyroid carcinoma. MNIceRNA first constructs micro RNA (miRNA)-messenger RNA (mRNA)long non-coding RNA (lncRNA) networks from miRcode database and weighted correlation network analysis (WGCNA), based on which to identify key drivers of differentially expressed RNAs between normal and tumor samples...
January 19, 2018: Genes
https://www.readbyqxmd.com/read/29348628/fezf1-as1-mir-107-znf312b-axis-facilitates-progression-and-warburg-effect-in-pancreatic-ductal-adenocarcinoma
#3
Huilin Ye, Quanbo Zhou, Shangyou Zheng, Guolin Li, Qing Lin, Liangtao Ye, Yingxue Wang, Lusheng Wei, Xiaohui Zhao, Wenzhu Li, Zhiqiang Fu, Yimin Liu, Zhihua Li, Rufu Chen
Long non-coding RNAs (lncRNAs) play a pivotal role in pathological processes. However, little information has been published regarding the underlying functions and mechanisms of lncRNAs in pancreatic ductal adenocarcinoma (PDAC). A novel lncRNA FEZF1-AS1 and its sense-cognate gene ZNF312B were found to be highly expressed in human PDAC tissues and cell lines, which is associated with disease progression and predicts clinical outcome in PDAC patients. Of note, bioinformatics analysis, luciferase assays and RNA immunoprecipitation assays indicated that FEZF1-AS1 may act as an endogenous sponge by competing for miR-107, thereby modulating the derepression of ZNF312B...
January 18, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29348497/rna-binding-proteins-control-gene-expression-and-cell-fate-in-the-immune-system
#4
REVIEW
Martin Turner, Manuel D Díaz-Muñoz
RNA-binding proteins (RBPs) are essential for the development and function of the immune system. They interact dynamically with RNA to control its biogenesis and turnover by transcription-dependent and transcription-independent mechanisms. In this Review, we discuss the molecular mechanisms by which RBPs allow gene expression changes to occur at different speeds and to varying degrees, and which RBPs regulate the diversity of the transcriptome and proteome. These proteins are nodes for integration of transcriptional and signaling networks and are intimately linked to intermediary metabolism...
January 18, 2018: Nature Immunology
https://www.readbyqxmd.com/read/29348408/nipbl-haploinsufficiency-reveals-a-constellation-of-transcriptome-disruptions-in-the-pluripotent-and-cardiac-states
#5
Jason A Mills, Pamela S Herrera, Maninder Kaur, Lanfranco Leo, Deborah McEldrew, Jesus A Tintos-Hernandez, Ramakrishnan Rajagopalan, Alyssa Gagne, Zhe Zhang, Xilma R Ortiz-Gonzalez, Ian D Krantz
Cornelia de Lange syndrome (CdLS) is a complex disorder with multiple structural and developmental defects caused by mutations in structural and regulatory proteins involved in the cohesin complex. NIPBL, a cohesin regulatory protein, has been identified as a critical protein responsible for the orchestration of transcriptomic regulatory networks necessary for embryonic development. Mutations in NIPBL are responsible for the majority of cases of CdLS. Through RNA-sequencing of human induced pluripotent stem cells and in vitro-derived cardiomyocytes, we identified hundreds of mRNAs, pseudogenes, and non-coding RNAs with altered expression in NIPBL+/- patient-derived cells...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348055/high-resolution-structures-of-mitochondrial-ribosomes-and-their-functional-implications
#6
REVIEW
Philipp Bieri, Basil J Greber, Nenad Ban
Mitochondrial ribosomes (mitoribosomes) almost exclusively synthesize essential components of the oxidative phosphorylation machinery. Dysfunction of mitochondrial protein biosynthesis leads to human diseases and plays an important role in the altered metabolism of cancer cells. Recent developments in cryo-electron microscopy enabled the structural characterization of complete yeast and mammalian mitoribosomes at near-atomic resolution. Despite originating from ancestral bacterial ribosomes, mitoribosomes have diverged in their composition and architecture...
January 15, 2018: Current Opinion in Structural Biology
https://www.readbyqxmd.com/read/29347911/micrornas-associated-with-early-neural-crest-development-in-xenopus-laevis
#7
Nicole J Ward, Darrell Green, Janet Higgins, Tamas Dalmay, Andrea Münsterberg, Simon Moxon, Grant N Wheeler
BACKGROUND: The neural crest (NC) is a class of transitory stem cell-like cells unique to vertebrate embryos. NC cells arise within the dorsal neural tube where they undergo an epithelial to mesenchymal transition in order to migrate and differentiate throughout the developing embryo. The derivative cell types give rise to multiple tissues, including the craniofacial skeleton, peripheral nervous system and skin pigment cells. Several well-studied gene regulatory networks underpin NC development, which when disrupted can lead to various neurocristopathies such as craniofrontonasal dysplasia, DiGeorge syndrome and some forms of cancer...
January 18, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29346760/single-cell-transcriptional-profiling-reveals-cellular-diversity-and-intercommunication-in-the-mouse-heart
#8
Daniel A Skelly, Galen T Squiers, Micheal A McLellan, Mohan T Bolisetty, Paul Robson, Nadia A Rosenthal, Alexander R Pinto
Characterization of the cardiac cellulome, the network of cells that form the heart, is essential for understanding cardiac development and normal organ function and for formulating precise therapeutic strategies to combat heart disease. Recent studies have reshaped our understanding of cardiac cellular composition and highlighted important functional roles for non-myocyte cell types. In this study, we characterized single-cell transcriptional profiles of the murine non-myocyte cardiac cellular landscape using single-cell RNA sequencing (scRNA-seq)...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29346554/functional-roles-of-sex-biased-growth-hormone-regulated-micrornas-mir-1948-and-mir-802-in-young-adult-mouse-liver
#9
Pengying Hao, David J Waxman
Sex-specific temporal patterns of pituitary GH secretion determine the sex-biased transcription of hundreds of genes in the liver and impart significant sex differences in liver physiology, metabolism and disease. Sex differences in hepatic gene expression vary widely, ranging from <2-fold to >1,000-fold in the mouse. Here, we use small RNA sequencing to discover 24 sex-biased mouse liver miRNAs, and then investigate the roles of two of these miRNAs in GH-regulated liver sex differences. Studies in pre-pubertal and young adult mice, and in mice where pituitary hormones are ablated or where sex-specific hepatic GH signaling is dysregulated, demonstrated that the male-biased miR-1948 and the female-biased miR-802 are both regulated by sex-specific pituitary GH secretory patterns, acquire sex specificity at puberty, and are dependent on the GH-activated transcription factor STAT5 for their sex-specific expression...
January 16, 2018: Endocrinology
https://www.readbyqxmd.com/read/29346292/isoform-sequencing-and-state-of-art-applications-for-unravelling-complexity-of-plant-transcriptomes
#10
REVIEW
Dong An, Hieu X Cao, Changsheng Li, Klaus Humbeck, Wenqin Wang
Single-molecule real-time (SMRT) sequencing developed by PacBio, also called third-generation sequencing (TGS), offers longer reads than the second-generation sequencing (SGS). Given its ability to obtain full-length transcripts without assembly, isoform sequencing (Iso-Seq) of transcriptomes by PacBio is advantageous for genome annotation, identification of novel genes and isoforms, as well as the discovery of long non-coding RNA (lncRNA). In addition, Iso-Seq gives access to the direct detection of alternative splicing, alternative polyadenylation (APA), gene fusion, and DNA modifications...
January 18, 2018: Genes
https://www.readbyqxmd.com/read/29345294/hypoxia-stimulates-the-cytoplasmic-localization-of-oncogenic-long-noncoding-rna-linc00152-in-colorectal-cancer
#11
Yujiro Nishizawa, Masamitsu Konno, Ayumu Asai, Jun Koseki, Koichi Kawamoto, Norikatsu Miyoshi, Hidekazu Takahashi, Naohiro Nishida, Naotsugu Haraguchi, Daisuke Sakai, Toshihiro Kudo, Taishi Hata, Chu Matsuda, Tsunekazu Mizushima, Taroh Satoh, Yuichiro Doki, Masaki Mori, Hideshi Ishii
Recent studies have indicated that long noncoding RNAs (lncRNAs) play a pivotal role in almost all physiological cellular processes, including every stage of cancer development. Given that hypoxia in the tumor microenvironment is involved in the malignant behavior of tumors, such as invasion and metastasis, we investigated the cytoplasmic and nuclear localization of lncRNAs in colorectal cancer cells. A cell culture under hypoxic conditions revealed several lncRNAs, such as LINC00152, whose levels were increased in the cytoplasm of colorectal cancer cells...
February 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29344885/microrna-networks-in-breast-cancer-cells
#12
Andliena Tahiri, Miriam R Aure, Vessela N Kristensen
A variety of molecular techniques can be used in order to unravel the molecular composition of cells. In particular, the microarray technology has been used to identify novel biomarkers that may be useful in the diagnosis, prognosis, or treatment of cancer. The microarray technology is ideal for biomarker discovery as it allows for the screening of a large number of molecules at once. In this review, we focus on microRNAs (miRNAs) which are key molecules in cells and regulate gene expression post-transcriptionally...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29344146/integrated-microrna-mrna-analyses-of-distinct-expression-profiles-in-follicular-thyroid-tumors
#13
Jiadong Chi, Xiangqian Zheng, Ming Gao, Jingzhu Zhao, Dapeng Li, Jiansen Li, Li Dong, Xianhui Ruan
MicroRNAs (miRNAs/miRs) are small non-coding RNAs identified in plants, animals and certain viruses; they function in RNA silencing and post-transcriptional regulation of gene expression. miRNAs also serve an important role in the pathogenesis, diagnosis and treatment of tumors. However, few studies have investigated the role of miRNAs in thyroid tumors. In the present study, the expression of miRNA and mRNA was compared between follicular thyroid carcinoma (FTC) and follicular thyroid adenoma (FA) samples, and then miRNA-mRNA regulatory network analysis was performed...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29343974/identification-of-key-pathways-and-genes-in-tp53-mutation-acute-myeloid-leukemia-evidence-from-bioinformatics-analysis
#14
Rui Huang, Xiwen Liao, Qiaochuan Li
Background: Tumor protein p53 (TP53) mutations are not only a risk factor in acute myeloid leukemia (AML) but also a potential biomarker for individualized treatment options. This study aimed to investigate potential pathways and genes associated with TP53 mutations in adult de novo AML. Methods: An RNA sequencing dataset of adult de novo AML was downloaded from The Cancer Genome Atlas database. Differentially expressed genes (DEGs) were identified by edgeR of the R platform...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29343207/genome-wide-analysis-identified-a-number-of-dysregulated-long-noncoding-rna-lncrna-in-human-pancreatic-ductal-adenocarcinoma
#15
Sijie Hao, Lie Yao, Jiaxin Huang, Hang He, Feng Yang, Yang Di, Chen Jin, Deliang Fu
BACKGROUND: Long noncoding RNAs have been shown to play crucial roles in cancer biology, while the long noncoding RNA landscapes of pancreatic ductal adenocarcinoma have not been completely characterized. We aimed to determine whether long noncoding RNA could serve as early diagnostic biomarkers for pancreatic ductal adenocarcinoma. METHOD: We conducted a genome-wide microarray analysis on pancreatic ductal adenocarcinoma and their adjacent noncancerous tissues from 8 Chinese patients...
January 1, 2018: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29342275/hot-spot-kif5a-mutations-cause-familial-als
#16
David Brenner, Rüstem Yilmaz, Kathrin Müller, Torsten Grehl, Susanne Petri, Thomas Meyer, Julian Grosskreutz, Patrick Weydt, Wolfgang Ruf, Christoph Neuwirth, Markus Weber, Susana Pinto, Kristl G Claeys, Berthold Schrank, Berit Jordan, Antje Knehr, Kornelia Günther, Annemarie Hübers, Daniel Zeller, Christian Kubisch, Sibylle Jablonka, Michael Sendtner, Thomas Klopstock, Mamede de Carvalho, Anne Sperfeld, Guntram Borck, Alexander E Volk, Johannes Dorst, Joachim Weis, Markus Otto, Joachim Schuster, Kelly Del Tredici, Heiko Braak, Karin M Danzer, Axel Freischmidt, Thomas Meitinger, Tim M Strom, Albert C Ludolph, Peter M Andersen, Jochen H Weishaupt
Heterozygous missense mutations in the N-terminal motor or coiled-coil domains of the kinesin family member 5A (KIF5A) gene cause monogenic spastic paraplegia (HSP10) and Charcot-Marie-Tooth disease type 2 (CMT2). Moreover, heterozygous de novo frame-shift mutations in the C-terminal domain of KIF5A are associated with neonatal intractable myoclonus, a neurodevelopmental syndrome. These findings, together with the observation that many of the disease genes associated with amyotrophic lateral sclerosis disrupt cytoskeletal function and intracellular transport, led us to hypothesize that mutations in KIF5A are also a cause of amyotrophic lateral sclerosis...
January 12, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29341157/minimizing-inequality-in-access-to-precision-medicine-in-breast-cancer-by-real-time-population-based-molecular-analysis-in-the-scan-b-initiative
#17
L Rydén, N Loman, C Larsson, C Hegardt, J Vallon-Christersson, M Malmberg, H Lindman, A Ehinger, L H Saal, Å Borg
BACKGROUND: Selection of systemic therapy for primary breast cancer is currently based on clinical biomarkers along with stage. Novel genomic tests are continuously being introduced as more precise tools for guidance of therapy, although they are often developed for specific patient subgroups. The Sweden Cancerome Analysis Network - Breast (SCAN-B) initiative aims to include all patients with breast cancer for tumour genomic analysis, and to deliver molecular subtype and mutational data back to the treating physician...
January 2018: British Journal of Surgery
https://www.readbyqxmd.com/read/29340250/integrated-genomic-analyses-of-lung-squamous-cell-carcinoma-for-identification-of-a-possible-competitive-endogenous-rna-network-by-means-of-tcga-datasets
#18
Pengbo Ning, Zhongxing Wu, Aoxue Hu, Xuepeng Li, Jun He, Xiaocheng Gong, Yuqiong Xia, Yukui Shang, Huijie Bian
The etiology of cancer includes aberrant cellular homeostasis where a compromised RNA regulatory network is a prominent contributing factor. In particular, noncoding RNAs including microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) were recently shown to play important roles in the initiation, progression, and metastasis of human cancers. Nonetheless, a mechanistic understanding of noncoding RNA functions in lung squamous cell carcinoma (LUSC) is lacking. To fill this critical gap in knowledge, we obtained mRNA, miRNA, and lncRNA expression data on patients with LUSC from the updated Cancer Genome Atlas (TCGA) database (2016)...
2018: PeerJ
https://www.readbyqxmd.com/read/29340089/lncrna-rncr3-promotes-chop-expression-by-sponging-mir-185-5p-during-mdsc-differentiation
#19
Wencong Shang, Zhenzhen Tang, Yunhuan Gao, Houbao Qi, Xiaomin Su, Yuan Zhang, Rongcun Yang
Myeloid-derived suppressor cells (MDSCs) play a critical role in regulating immune responses in cancer and other pathological conditions. Mechanism(s) regulating MDSC differentiation and function is not completely clear, especially epigenetic regulation. In this study, we found that MDSCs express retinal non-coding RNA3 (RNCR3), and the expression in MDSCs is upregulated by inflammatory and tumor associated factors. RNCR3 may function as a competing endogenous RNA (ceRNA) to promote Chop expression by sponging miR-185-5p during MDSC differentiation...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29340088/identification-of-bladder-cancer-prognostic-biomarkers-using-an-ageing-gene-related-competitive-endogenous-rna-network
#20
Changliang Wang, Liang Chen, Yang Yang, Menglei Zhang, Garry Wong
Competitive endogenous RNAs (ceRNAs) are a newly proposed RNA interaction mechanism that has been associated with the initiation and progression of various cancers. In this study, we constructed an ageing gene related ceRNA network (AgeingCeNet) in bladder cancer. Network analysis revealed that ageing gene ceRNAs have a larger degree and closeness centrality than ageing genes themselves. Notably, the difference of betweenness centrality of ageing genes and their ceRNAs is not significant, suggesting that the ceRNAs of ageing genes and ageing genes themselves both play important communication roles in AgeingCeNet...
December 19, 2017: Oncotarget
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