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https://www.readbyqxmd.com/read/28454427/chemoresistance-in-pancreatic-cancer-emerging-concepts
#1
Manu Gnanamony, Christopher S Gondi
Pancreatic cancer is one of the most lethal types of cancer in the world. The incidence of pancreatic cancer increases each year with no significant decrease in mortality. Pancreatic cancer is a complex disease, and this complexity is partly attributed to late diagnosis, an aggressive phenotype, environmental factors and lack of effective treatment options. Surgical resection followed by adjuvant chemotherapy is the treatment of choice for early stage cancer, whereas gemcitabine is the standard first line therapy for patients with advanced stage disease...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454375/a-comprehensive-analysis-of-cancer-driving-mutations-and-genes-in-kidney-cancer
#2
Chengmei Long, Jinbo Jian, Xinchang Li, Gongxian Wang, Jingen Wang
An accumulation of driver mutations is important for cancer formation and progression, and leads to the disruption of genes and signaling pathways. The identification of driver mutations and genes has been the subject of numerous previous studies. The present study was performed to identify cancer-driving mutations and genes in renal cell carcinoma (RCC), prioritizing noncoding variants with a high functional impact, in order to analyze the most informative features. Sorting Intolerant From Tolerant (SIFT), Polymorphism Phenotyping version 2 (Polyphen2) and MutationAssessor were applied to predict deleterious mutations in the coding genome...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454226/long-non-coding-rna-hotair-enhances-radioresistance-in-mda-mb231-breast-cancer-cells
#3
Yun Zhou, Chaoqun Wang, Xia Liu, Chengjun Wu, Haitao Yin
The aim of the present study was to investigate the radiosensitizing effects of homeobox (HOX) transcript antisense RNA (HOTAIR) long non-coding RNA on breast cancer tumor cells and examine the underlying mechanisms. Recombinant plasmid vectors containing HOTAIR gene were constructed and MDA-MB231 cells were transfected with these plasmids using liposomes. The cells were treated with radiation and cell apoptosis, proliferation, and double-stranded DNA breaks were examined. HOXD10, phosphorylated AKT (p-AKT) and p-BAD expression levels were measured using western blot analysis...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453813/identification-and-allelic-dissection-uncover-roles-of-lncrnas-in-secondary-growth-of-populus-tomentosa
#4
Daling Zhou, Qingzhang Du, Jinhui Chen, Qingshi Wang, Deqiang Zhang
Long non-coding RNAs (lncRNAs) function in various biological processes. However, their roles in secondary growth of plants remain poorly understood. Here, 15,691 lncRNAs were identified from vascular cambium, developing xylem, and mature xylem of Populus tomentosa with high and low biomass using RNA-seq, including 1,994 lncRNAs that were differentially expressed (DE) among the six libraries. 3,569 cis-regulated and 3,297 trans-regulated protein-coding genes were predicted as potential target genes (PTGs) of the DE lncRNAs to participate in biological regulation...
April 26, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28448993/the-long-non-coding-rna-xist-controls-non-small-cell-lung-cancer-proliferation-and-invasion-by-modulating-mir-186-5p
#5
Haoyou Wang, Qiming Shen, Xin Zhang, Chunlu Yang, Su Cui, Yanbin Sun, Liming Wang, Xiaoxi Fan, Shun Xu
BACKGROUND/AIMS: Long non-coding RNAs (lncRNAs) are key players in the development and progression of human cancers. The lncRNA XIST (X-inactive specific transcript) has been shown to be upregulated in human non-small cell lung cancer (NSCLC); however, its role and molecular mechanisms in NSCLC cell progression remain unclear. METHODS: qRT-PCR was conducted to assess the expression of XIST and miR-186. Cell proliferation was detected using MTT assay. Cell invasion and migration were evaluated using transwell assay...
April 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28446914/constructing-integrated-networks-for-identifying-new-secondary-metabolic-pathway-regulators-in-grapevine-recent-applications-and-future-opportunities
#6
Darren C J Wong, José Tomás Matus
Representing large biological data as networks is becoming increasingly adopted for predicting gene function while elucidating the multifaceted organization of life processes. In grapevine (Vitis vinifera L.), network analyses have been mostly adopted to contribute to the understanding of the regulatory mechanisms that control berry composition. Whereas, some studies have used gene co-expression networks to find common pathways and putative targets for transcription factors related to development and metabolism, others have defined networks of primary and secondary metabolites for characterizing the main metabolic differences between cultivars throughout fruit ripening...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28446723/up-regulation-of-long-non-coding-rna-spry4-it1-promotes-tumor-cell-migration-and-invasion-in-lung-adenocarcinoma
#7
Xia Zhang, Qingyan Chi, Zhenhua Zhao
Long non-coding RNAs (lncRNAs) play important role in a variety of biological processes, and are tightly associated with tumorigenesis and cancer prognosis. However, the potential power of lncRNA signatures in predicting survival of patients with lung adenocarcinoma (LUAD) has not been investigated. Here, we identified a four-lncRNA signature (SPRY4-IT1, LINC00941,GPR158-AS1 and KCNK15-AS1) displaying prognostic values for LUAD using The Cancer Genome Atlas (TCGA) dataset. Based on the four-lncRNA signature, the LUAD patients can be classified into high-risk and low-risk groups with significantly different survival...
April 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28446530/long-non-coding-rnas-and-their-role-in-metastasis
#8
REVIEW
Ulrich H Weidle, Fabian Birzele, Gwen Kollmorgen, Rüdiger Rüger
The perception of long non-coding RNAs as chunk RNA and transcriptional noise has been steadily replaced by their role as validated targets for a diverse set of physiological processes in the past few years. However, for the vast majority of lncRNAs their precise mode of action and physiological function remain to be uncovered. A large body of evidence has revealed their essential role in all stages of cancirogenesis and metastasis. In this review we focus on the role of lncRNAs in metastasis. We grouped selected lncRNAs into three categories based on in vitro and in vivo mode of action-related studies and clinical relevance for metastasis...
May 2017: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/28446159/the-quality-of-medicaid-and-medicare-data-obtained-from-cms-and-its-contractors-implications-for-pharmacoepidemiology
#9
Charles E Leonard, Colleen M Brensinger, Young Hee Nam, Warren B Bilker, Geralyn M Barosso, Margaret J Mangaali, Sean Hennessy
BACKGROUND: Administrative claims of United States Centers for Medicare and Medicaid Services (CMS) beneficiaries have long been used in non-experimental research. While CMS performs in-house checks of these claims, little is known of their quality for conducting pharmacoepidemiologic research. We performed exploratory analyses of the quality of Medicaid and Medicare data obtained from CMS and its contractors. METHODS: Our study population consisted of Medicaid beneficiaries (with and without dual coverage by Medicare) from California, Florida, New York, Ohio, and Pennsylvania...
April 26, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28445936/increased-expression-of-zeb1-as1-correlates-with-higher-histopathological-grade-and-promotes-tumorigenesis-in-bladder-cancer
#10
Junhao Lin, Yonghao Zhan, Yuchen Liu, Zhicong Chen, Jianbo Liang, Wei Li, Anbang He, Liqun Zhou, Hongbin Mei, Feng Wang, Weiren Huang
Bladder cancer is one of the most common urinary cancers worldwide. Emerging studies indicated that long non-coding RNAs (lncRNAs) play crucial roles in cancer biology. In this study, we found that a novel lncRNA Zinc finger E-box-binding homeebox1 (ZEB1) antisense RNA (ZEB1-AS1) was overexpressed in bladder cancer tissues compared to paired noncancerous tissues. Moreover, the expression of ZEB1-AS1 was positive correlated with higher histological grade and TNM stage in bladder cancer. Furthermore, Loss-of-function experiments showed that down-regulation of ZEB1-AS1 not only can suppress cell growth but also can inhibit migration and induce apoptosis in bladder cancer cell lines 5637 and SW780...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445713/deregulation-of-%C3%AE-synuclein-in-parkinson-s-disease-insight-from-epigenetic-structure-and-transcriptional-regulation-of-snca
#11
REVIEW
Subhrangshu Guhathakurta, Eugene Bok, Baggio A Evangelista, Yoon-Seong Kim
Understanding regulation of α-synuclein has long been a central focus for Parkinson's disease (PD) researchers. Accumulation of this protein in the Lewy body or neurites, mutations in the coding region of the gene and strong association of α-synuclein encoding gene multiplication (duplication/triplication) with familial form of PD have indicated the importance of this molecule in pathogenesis of the disease. Several years of research identified many potential faulty pathways associated with accumulation of α-synuclein inside dopaminergic neurons and its transmission to neighboring ones...
April 23, 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/28445578/utility-of-a-noninvasive-2-gene-molecular-assay-for-cutaneous-melanoma-and-effect-on-the-decision-to-biopsy
#12
Laura K Ferris, Burkhard Jansen, Jonhan Ho, Klaus J Busam, Kenneth Gross, Doyle D Hansen, John P Alsobrook, Zuxu Yao, Gary L Peck, Pedram Gerami
Importance: Expression of long intergenic non-protein coding RNA 518 (LINC00518) and preferentially expressed antigen in melanoma (PRAME) genes, obtained via noninvasive adhesive patch biopsy, is a sensitive and specific method for detection of cutaneous melanoma. However, the utility of this test in biopsy decisions made by dermatologists has not been evaluated. Objective: To determine the utility of the pigmented lesion assay (PLA) for LINC00518/PRAME expression in decisions to biopsy a series of pigmented skin lesions...
April 26, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28444913/vesicle-origami-cuboid-phospholipid-vesicles-formed-by-template-free-self-assembly
#13
Frederik Neuhaus, Dennis Mueller, Radu Tanasescu, Sandor Balog, Takashi Ishikawa, Gerald Brezesinski, Andreas Zumbuehl
Phospholipid liposomes are archetypical self-assembled structures. To minimize the surface tension, the vesicles typically are spherical. Deciphering the bilayer code, the basic physical interactions between phospholipids would allow these molecules to be utilized as building blocks for novel, non-spherical structures. A 1,2-diamidophospholipid is presented that self-assembles into a cuboid structure. Owing to intermolecular hydrogen bonding, the bilayer membranes form an exceptionally tight subgel packing, leading to a maximization of flat structural elements and a minimization of any edges...
April 26, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28444861/lncrna-malat1-is-dysregulated-in-diabetic-nephropathy-and-involved-in-high-glucose-induced-podocyte-injury-via-its-interplay-with-%C3%AE-catenin
#14
Mengsi Hu, Rong Wang, Xiaobing Li, Minghua Fan, Jiangong Lin, Junhui Zhen, Liqun Chen, Zhimei Lv
Metastasis associated lung adenocarcinoma transcript 1(MALAT1) is a long non-coding RNA, broadly expressed in mammalian tissues including kidney and up-regulated in a variety of cancer cells. To date, its functions in podocytes are largely unknown. β-catenin is a key mediator in the canonical and non-canonical Wnt signalling pathway; its aberrant expression promotes podocyte malfunction and albuminuria, and contributes to kidney fibrosis. In this study, we found that MALAT1 levels were increased in kidney cortices from C57BL/6 mice with streptozocin (STZ)-induced diabetic nephropathy, and dynamically regulated in cultured mouse podocytes stimulated with high glucose, which showed a trend from rise to decline...
April 26, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28443890/the-characteristic-landscape-of-lncrnas-classified-by-rbp-lncrna-interactions-across-10-cancers
#15
Qiang Zhang, Yunzhen Wei, Zichuang Yan, Cheng Wu, Zhiqiang Chang, Yinling Zhu, Kun Li, Yan Xu
RNA-binding proteins (RBPs) are key regulators of gene expression. Some long non-coding RNAs (lncRNAs) affect gene expression by interacting with RBPs. However, whether this influences the biological characteristics of lncRNAs in diseases still remains unknown. Here, we classify lncRNAs into two categories, using the interaction information between lncRNAs and RBPs: the lncRNAs that interact with RBPs (Rlncs) and the lncRNAs that do not interact with RBPs (NRlncs). Then we systematically analyze the basic attributes and functions of the two categories of lncRNAs across 10 cancers...
April 26, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28443494/expression-profiling-of-long-non-coding-rna-identifies-linc-ror-as-a-prognostic-biomarker-in-oral-cancer
#16
Ganesan Arunkumar, Arunagiri Kuha Deva Magendhra Rao, Mayakannan Manikandan, Kanagaraj Arun, Vilvanathan Vinothkumar, Sundaramoorthy Revathidevi, Kottayasamy Seenivasagam Rajkumar, Ramamurthy Rajaraman, Arasambattu Kannan Munirajan
Oral squamous cell carcinoma is the most aggressive cancer that is associated with high recurrence, metastasis, and poor treatment outcome. Dysregulation of long non-coding RNAs has been shown to promote tumor growth and metastasis in several cancers. In this study, we investigated the expression of 11 selected long non-coding RNAs that are associated with cell proliferation, metastasis, and tumor suppression in oral squamous cell carcinomas and normal tissues by quantitative real-time polymerase chain reaction...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28443464/increased-haglr-expression-promotes-non-small-cell-lung-cancer-proliferation-and-invasion-via-enhanced-de-novo-lipogenesis
#17
Chunwei Lu, Jun Ma, Dingfang Cai
Lung cancers are broadly classified into small cell lung cancer and non-small cell lung cancer, with non-small cell lung cancer one of the leading causes of cancer-associated deaths worldwide. Presently, the mechanisms underlying lung tumorigenesis remain incompletely understood. Accumulating evidence indicates that abnormal expression of long non-coding RNAs is associated with tumorigenesis in multiple cancers, including lung cancer. HAGLR messenger RNA of non-small cell lung cancer tissues was significantly higher...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28442991/a-novel-long-non-coding-rna-durga-modulates-dendrite-density-and-expression-of-kalirin-in-zebrafish
#18
Mayuresh A Sarangdhar, Divya Chaubey, Abhishek Bhatt, Monisha Km, Manish Kumar, Shashi Ranjan, Beena Pillai
Kalirin, a key player in axonal development, nerve growth and synaptic re-modeling, is implicated in many pathological conditions like schizophrenia and autism-spectrum disorders. Alternative promoters and splicing lead to functionally distinct isoforms, but the post-transcriptional regulation of Kalirin has not been studied. Here, we report a novel non-coding RNA, which we name durga, arising from the first exon of kalirin a (kalrna) in the antisense orientation in zebrafish. The kalrna and durga transcripts are barely detectable during early development, but steadily increase by 24 hours post-fertilization (hpf) as the brain develops...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28442363/the-global-expression-profiling-in-esophageal-squamous-cell-carcinoma
#19
Fuqiang Dai, Longyong Mei, Shenglan Meng, Zheng Ma, Wei Guo, Jinghai Zhou, Jingge Zhang
Esophageal squamous cell carcinoma (ESCC) is the dominant subtype of esophageal cancer worldwide. This study aimed to explore the aberrant global expression profiling and construct regulatory network in ESCC for understanding tumorigenesis of ESCC. The expression pattern of long non-coding RNA (lncRNA), microRNA (miRNA) and mRNA was measured by RNA-sequencing in ESCC. Differentially expressed lncRNAs/miRNAs/mRNAs (DELs/DEMs/DEMIs) were identified in ESCC. DEMIs-DEMs network was constructed; hsa-miR-424-5p and hsa-miR-450b-5p were the hub miRNAs in the network, which negatively regulated 19 and 17 DEMs...
April 22, 2017: Genomics
https://www.readbyqxmd.com/read/28441714/long-non-coding-rna-hotair-functions-as-mirna-sponge-to-promote-the-epithelial-to-mesenchymal-transition-in-esophageal-cancer
#20
Feng Xu, Jing Zhang
BACKGROUND: Accumulating evidence indicates dysregulated expression of the long non-coding RNA HOTAIR (lncRNA-HOTAIR) may play a significant role in tumor progression. LncRNA-HOTAIR promotes several processes in esophageal cancer (EC), including cell growth, differentiation, invasion and migration. However, the mechanisms by which lncRNA-HOTAIR promotes invasion and migration EC remain unclear. METHODS: LncRNA-HOTAIR and miR-148a expression were quantified in 40 paired human EC and tumor-adjacent tissues and EC cell lines by quantitative real-time PCR (qRT-PCR)...
April 21, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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