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https://www.readbyqxmd.com/read/28526941/urinary-cadmium-and-cotinine-levels-and-hair-mercury-levels-in-czech-children-and-their-mothers-within-the-framework-of-the-cophes-democophes-projects
#1
Kateřina Forysová, Anna Pinkr-Grafnetterová, Marek Malý, Andrea Krsková, Jaroslav Mráz, Lucie Kašparová, Mája Čejchanová, Lenka Sochorová, Sylva Rödlová, Milena Černá
The COPHES/DEMOCOPHES twin project was performed in 2011-2012 in 17 European countries to harmonize all steps of the human biomonitoring survey. Urinary cadmium, cotinine, phthalate metabolites, and hair mercury were measured in children (N = 120, 6-11 years) and their mothers of reproductive age, living in urban or rural areas. Cadmium in mothers' and children's urine was detected at a geometric mean (GM) concentration 0.227 and 0.109 μg/L, respectively; 95th percentile (P95) was 0.655 and 0.280 μg/L in mothers and children, respectively...
May 19, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28524360/lamc1-mrna-promotes-malignancy-of-hepatocellular-carcinoma-cells-by-competing-for-microrna-124-binding-with-cd151
#2
Zhan-Po Yang, Hong-Shun Ma, Shu-Sen Wang, Le Wang, Tao Liu
Specific RNAs can function as sinks for endogenous miRNAs, known as competing endogenous RNAs (ceRNAs). Here, we confirm a miR-124 mediated ceRNA crosstalk between LAMC1 and CD151 in hepatocellular carcinoma (HCC). miR-124 negatively regulates LAMC1 expression through two miRNA binding sites within its 3' untranslated region (3'UTR) and suppresses migration and invasion of HCC cells through regulating LAMC1. The wild type LAMC1 miRNA response elements (MREs) facilitate expression of CD151, and this regulation is miR-124 dependent...
May 19, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28510638/%C3%AE-asarone-suppresses-the-proliferation-and-migration-of-asmcs-through-targeting-the-lncrna-pvt1-mir-203a-e2f3-signal-pathway-in-rsv-infected-rats
#3
Xiao Yu, Zhe Zhe, Binqing Tang, Shaobin Li, Ling Tang, Yingen Wu, Xiaorong Chen, Hong Fang
Asthma is a chronic inflammatory pulmonary disease and respiratory syncytial virus (RSV) infection is a common cause of lower respiratory tract illness in infants and young children. α-Asarone presents many pharmacological effects and has been demonstrated to be useful in treating asthma. However, the functional mechanism of α-asarone in RSV-infected asthma has not been investigated. Long non-coding RNAs (lncRNAs) have been reported to play critical roles in many biological processes. Although many lncRNAs have been characterized, few were reported in asthma, especially in RSV-induced asthma...
May 16, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28501870/long-non-coding-rna-xloc_008466-functions-as-an-oncogene-in-human-non-small-cell-lung-cancer-by-targeting-mir-874
#4
Rui Yang, Ping Li, Guojun Zhang, Chunya Lu, Huaqi Wang, Guoqiang Zhao
BACKGROUND: The therapy and prognosis of lung cancer are difficult because of multiple genetic and epigenetic alterations. Long non-coding RNAs (lncRNAs) have been verified as new mediators of cancer development and progression by virtue of their various functions. Here, we focused on the lncRNA XLOC_008466 based on previous microarray data. However, whether aberrant expression of XLOC_008466 in human non-small cell lung cancer (NSCLC) is correlated with malignancy, metastasis or prognosis has not been elucidated...
May 12, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28495512/modulation-of-casc2-mir-21-pten-pathway-sensitizes-cervical-cancer-to-cisplatin
#5
Yeqian Feng, Wen Zou, Chunhong Hu, Guiyuan Li, Shenghua Zhou, Yan He, Fang Ma, Chao Deng, Lili Sun
Cisplatin (DDP) -based chemotherapy is a standard strategy for cervical cancer, while chemoresistance remains a challenge. Recent evidence highlights the crucial regulatory roles of long non-coding RNAs (lncRNA) in tumor biology. However, the roles and regulatory mechanisms of the novel lncRNA, cancer susceptibility candidate 2 (CASC2), in cervical cancer tumorigenesis and chemoresistance are poorly understood. In this study, CASC2 expression was down-regulated in cervical cancer tissues, and was related to a shorter survival time and poorer clinicopathologic features...
May 8, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28492542/lncrna-hotair-regulates-hif-1%C3%AE-axl-signaling-through-inhibition-of-mir-217-in-renal-cell-carcinoma
#6
Quan Hong, Ou Li, Wei Zheng, Wen-Zhen Xiao, Lu Zhang, Di Wu, Guang-Yan Cai, John Cijiang He, Xiang-Mei Chen
Long non-coding RNA HOTAIR was regarded as an oncogene in multiple cancers. Previous studies have shown that HOTAIR is involved in the proliferation and tumorigenesis of renal carcinoma cells, while microRNA (miR)-217 functions as a tumor suppressor in renal cell carcinoma (Rcc). However, the underlying molecular mechanism of HOTAIR in Rcc, especially in association with miR-217, has not been studied. In this study, we first demonstrated that HOTAIR expression was upregulated, which was correlated with tumor progression, and miR-217 downregulated in Rcc tissues and cells...
May 11, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28489863/combining-phylogenetic-and-demographic-inferences-to-assess-the-origin-of-the-genetic-diversity-in-an-isolated-wolf-population
#7
Luca Montana, Romolo Caniglia, Marco Galaverni, Elena Fabbri, Atidje Ahmed, Barbora Černá Bolfíková, Sylwia D Czarnomska, Ana Galov, Raquel Godinho, Maris Hindrikson, Pavel Hulva, Bogumiła Jędrzejewska, Maja Jelenčič, Miroslav Kutal, Urmas Saarma, Tomaž Skrbinšek, Ettore Randi
The survival of isolated small populations is threatened by both demographic and genetic factors. Large carnivores declined for centuries in most of Europe due to habitat changes, overhunting of their natural prey and direct persecution. However, the current rewilding trends are driving many carnivore populations to expand again, possibly reverting the erosion of their genetic diversity. In this study we reassessed the extent and origin of the genetic variation of the Italian wolf population, which is expanding after centuries of decline and isolation...
2017: PloS One
https://www.readbyqxmd.com/read/28486172/synergistic-effect-of-low-k-and-d-vitamin-status-on-arterial-stiffness-in-a-general-population
#8
Otto Mayer, Jitka Seidlerová, Peter Wohlfahrt, Jan Filipovský, Renata Cífková, Václava Černá, Alena Kučerová, Martin Pešta, Radka Fuchsová, Ondřej Topolčan, Kelly M C Jardon, Nadja E A Drummen, Cees Vermeer
Both vitamins K and D are nutrients with pleiotropic functions in human tissues. The metabolic role of these vitamins overlaps considerably in calcium homeostasis. We analyzed their potential synergetic effect on arterial stiffness. In a cross-sectional study, we analyzed aortic pulse wave velocity (aPWV) in 1023 subjects from the Czech post-MONICA study. Desphospho-uncarboxylated matrix γ-carboxyglutamate protein (dp-ucMGP), a biomarker of vitamin K status, was measured by sandwich ELISA and 25-hydroxyvitamin D3 (25-OH-D3) by a commercial immunochemical assay...
April 22, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28475287/lncrna-ccat1-promotes-glioma-tumorigenesis-by-sponging-mir-181b
#9
Bingzhou Cui, Baoshan Li, Qi Liu, Youqiang Cui
Colon cancer-associated transcript 1 (CCAT1), a long non-coding RNA (lncRNA), is upregulated and has a vital role in the pathogenesis of numerous cancers. Recently, its high expression was found in glioma tissues. miR-181b is downregulated in glioma and acts as a tumor suppressor. However, the exact mechanism of CCAT1 action in the regulation of glioma development remains unknown. CCAT1 and miR-181b expression was firstly examined in glioma tissue samples by real-time PCR. An RNA interference approach was used to downregulate CCAT1 expression and we analyzed the underlying mechanism of CCAT1 by using bioinformatics analysis, CCK-8 assay, Transwell assay, flow cytometry, luciferase assay, RNA immunoprecipitation, real-time PCR, Western blot, and xenograft models...
May 5, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28472449/exploring-genetic-associations-with-cerna-regulation-in-the-human-genome
#10
Mulin Jun Li, Jian Zhang, Qian Liang, Chenghao Xuan, Jiexing Wu, Peng Jiang, Wei Li, Yun Zhu, Panwen Wang, Daniel Fernandez, Yujun Shen, Yiwen Chen, Jean-Pierre A Kocher, Ying Yu, Pak Chung Sham, Junwen Wang, Jun S Liu, X Shirley Liu
Competing endogenous RNAs (ceRNAs) are RNA molecules that sequester shared microRNAs (miRNAs) thereby affecting the expression of other targets of the miRNAs. Whether genetic variants in ceRNA can affect its biological function and disease development is still an open question. Here we identified a large number of genetic variants that are associated with ceRNA's function using Geuvaids RNA-seq data for 462 individuals from the 1000 Genomes Project. We call these loci competing endogenous RNA expression quantitative trait loci or 'cerQTL', and found that a large number of them were unexplored in conventional eQTL mapping...
May 2, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28470264/reconstruction-and-analysis-of-the-lncrna-mirna-mrna-network-based-on-competitive-endogenous-rna-reveal-functional-lncrnas-in-rheumatoid-arthritis
#11
Hui Jiang, Rong Ma, Shubiao Zou, Yongzhong Wang, Zhuqing Li, Weiping Li
Rheumatoid arthritis (RA) is an autoimmune disease with an unknown etiology, occurring in approximately 1.0% of general population. More and more studies have suggested that long non-coding RNAs (lncRNAs) could play important roles in various biological processes and be associated with the pathogenesis of different kinds of diseases including RA. Although a large number of lncRNAs have been found, our knowledge of their function and physiological/pathological significance is still in its infancy. In order to reveal functional lncRNAs and identify the key lncRNAs in RA, we reconstructed a global triple network based on the competitive endogenous RNA (ceRNA) theory using the data from National Center for Biotechnology Information Gene Expression Omnibus and our previous paper...
May 4, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28462018/glacial-allopatry-vs-postglacial-parapatry-and-peripatry-the-case-of-hedgehogs
#12
Barbora Černa Bolfíková, Kristýna Eliášová, Miroslava Loudová, Boris Kryštufek, Petros Lymberakis, Attila D Sándor, Pavel Hulva
Although hedgehogs are well-known examples of postglacial recolonisation, the specific processes that shape their population structures have not been examined by detailed sampling and fast-evolving genetic markers in combination with model based clustering methods. This study aims to analyse the impacts of isolation within glacial refugia and of postglacial expansion on the population structure of the Northern White-breasted hedgehog (Erinaceus roumanicus). It also discusses the role of the processes at edges of species distribution in its evolutionary history...
2017: PeerJ
https://www.readbyqxmd.com/read/28436883/a-bipartite-network-and-resource-transfer-based-approach-to-infer-lncrna-environmental-factor-associations
#13
Jie Zhou, Yuan-Yuan Shi
Phenotypes and diseases are often determined by the complex interactions between genetic factors and environmental factors (EFs). However, compared with protein-coding genes and microRNAs, there is a paucity of computational methods for understanding the associations between long non-coding RNAs (lncRNAs) and EFs. In this study, we focused on the associations between lncRNA and EFs. By using the common miRNA partners of any pair of lncRNA and EF, based on the competing endogenous RNA (ceRNA) hypothesis and the technique of resources transfer within the experimentally-supported lncRNA-miRNA and miRNA-EF association bipartite networks, we propose an algorithm for predicting new lncRNA-EF associations...
April 18, 2017: IEEE/ACM Transactions on Computational Biology and Bioinformatics
https://www.readbyqxmd.com/read/28424426/circular-rna-hsa-circ-0016347-promotes-proliferation-invasion-and-metastasis-of-osteosarcoma-cells
#14
Hao Jin, Xin Jin, Hong Zhang, Wenbo Wang
Circular RNAs (circRNAs) are a novel class of non-coding RNA which have recently shown huge capabilities in the regulation of gene expression at the post-transcriptional level. Growing evidence has indicated that circRNAs could serve as competing endogenous RNAs (ceRNAs) to bind with microRNAs (miRNAs) and to inhibit the activity and function of the targeted miRNAs. Here, we demonstrated that circ-0016347 acted as a positive regulator in osteosarcoma cells proliferation and invasion. Moreover, circ-0016347 was identified as a sponge of miR-214 that upregulated the expression of caspase-1, which is the functional target of miR-214...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423738/lncrna-snhg1-a-non-degradable-sponge-for-mir-338-promotes-expression-of-proto-oncogene-cst3-in-primary-esophageal-cancer-cells
#15
Yan Yan, Qingxia Fan, Liping Wang, Yue Zhou, Jianhua Li, Kun Zhou
Competing endogenous RNA (ceRNA) is a newly proposed mechanism that describes a crosstalk among lncRNAs, mRNAs and their shared miRNAs. In this study, the role of miR-338-3p (miR-338) in the progression of esophageal cancer and its involve in the ceRNA regulatory circuit lncRNA-Snhg1/CST3 were explored. MiR-338 displayed a 30% decreased expression in esophageal squamous cell carcinoma tissues compared with the adjacent. Then, proto-oncogene CST3 was predicted and validated as a target gene of miR-338. Gain-and-loss-function experiments indicated that miR-338 suppressed expression of CST3 protein (also Cystatin C, CysC), promoted expression of apoptotic proteins caspase-8/3, attenuated esophageal carcinoma cell growth and induced its apoptosis...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415684/the-long-noncoding-rna-linc-ned125-controls-the-expression-of-medulloblastoma-driver-genes-by-microrna-sponge-activity
#16
Pietro Laneve, Agnese Po, Annarita Favia, Ivano Legnini, Vincenzo Alfano, Jessica Rea, Valerio Di Carlo, Valeria Bevilacqua, Evelina Miele, Angela Mastronuzzi, Andrea Carai, Franco Locatelli, Irene Bozzoni, Elisabetta Ferretti, Elisa Caffarelli
Long noncoding RNAs (lncRNAs) are major regulators of physiological and disease-related gene expression, particularly in the central nervous system. Dysregulated lncRNA expression has been documented in several human cancers, and their tissue-specificity makes them attractive candidates as diagnostic/prognostic biomarkers and/or therapeutic agents. Here we show that linc-NeD125, which we previously characterized as a neuronal-induced lncRNA, is significantly overexpressed in Group 4 medulloblastomas (G4 MBs), the largest and least well characterized molecular MB subgroup...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28409554/lncrna-ccat1-upregulates-proliferation-and-invasion-in-melanoma-cells-via-suppressing-mir-33a
#17
Li Lv, Jian-Qin Jia, Jin Chen
It is increasingly evident that various long non-coding RNAs (lncRNAs) participate in the tumorigenesis of multiple tumors, including melanoma. LncRNA has been validated as oncogenic factor in multifarious tumor, however, the potential regulatory mechanism of CCAT1 in melanoma is still unclear. The purpose of this study is to investigate the regulation of CCAT1 on melanoma genesis. The expression of CCAT1 in melanoma tissue and cell lines was measured using qRT-PCR. Interference oligonucleotide or mimics sequences were applied to up- or down-regulate RNA expression...
April 12, 2017: Oncology Research
https://www.readbyqxmd.com/read/28406715/competitive-endogenous-rna-network-potential-implication-for-systemic-lupus-erythematosus
#18
Lian-Ju Li, Wei Zhao, Sha-Sha Tao, Rui-Xue Leng, Yin-Guang Fan, Hai-Feng Pan, Dong-Qing Ye
Competitive endogenous RNA (ceRNA) hypothesis proposes that RNA transcripts, both coding and non-coding, crosstalk with and coregulate each other using microRNA response elements (MREs). CeRNA analysis tremendously expands functional information of coding and non-coding RNAs. Mounting evidence have shown that various types of RNAs, including pseudogenes, long non-coding RNAs, circular RNAs, and messenger RNAs, can function as ceRNAs in distinct physiological and pathophysiological states. Many validated ceRNA pairs participate in the initiation and progression of cancers, and systemic ceRNA network analyses revealing potential of ceRNAs in diagnosis, therapy, and prognosis of cancers have also been performed...
April 23, 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/28404936/systematic-identification-and-comparison-of-expressed-profiles-of-lncrnas-and-circrnas-with-associated-co-expression-and-cerna-networks-in-mouse-germline-stem-cells
#19
Xiaoyong Li, Junping Ao, Ji Wu
Accumulating evidence indicates that long noncoding RNAs (lncRNAs) and circular RNAs (circRNAs) involve in germ cell development. However, little is known about the functions and mechanisms of lncRNAs and circRNAs in self-renewal and differentiation of germline stem cells. Therefore, we explored the expression profiles of mRNAs, lncRNAs, and circRNAs in male and female mouse germline stem cells by high-throughput sequencing. We identified 18573 novel lncRNAs and 18822 circRNAs in the germline stem cells and further confirmed the existence of these lncRNAs and circRNAs by RT-PCR...
April 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28400279/snhg1-lncrna-negatively-regulates-mir-199a-3p-to-enhance-cdk7-expression-and-promote-cell-proliferation-in-prostate-cancer
#20
Jianping Li, Zhipeng Zhang, Li Xiong, Chuan Guo, Tao Jiang, Lilan Zeng, Ge Li, Juan Wang
Long noncoding RNAs (lncRNAs) have been reported to play vital roles in the development of human cancers, but our understandings of most lncRNAs in cancers are still limited. Recently, accumlating evidences have showed that many RNA transcripts could function as competing endogenous RNAs (ceRNAs) by competitively binding common microRNAs. In this study, we demonstrated that a lncRNA, Small Nucleolar RNA Host Gene 1 (SNHG1), as a ceRNA for miR-199a-3p, played a critical role in prostate cancer cell proliferation...
May 20, 2017: Biochemical and Biophysical Research Communications
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