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https://www.readbyqxmd.com/read/28813459/%C3%AE-2-microglobulin-gene-duplication-in-cetartiodactyla-remains-intact-only-in-pigs-and-possibly-confers-selective-advantage-to-the-species
#1
Thong Minh Le, Quy Van Chanh Le, Dung Minh Truong, Hye-Jeong Lee, Min-Kyeung Choi, Hyesun Cho, Hak-Jae Chung, Jin-Hoi Kim, Jeong-Tae Do, Hyuk Song, Chankyu Park
Several β2-microglobulin (B2M) -bound protein complexes undertake key roles in various immune system pathways, including the neonatal Fc receptor (FcRn), cluster of differentiation 1 (CD1) protein, non-classical major histocompatibility complex (MHC), and well-known MHC class I molecules. Therefore, the duplication of B2M may lead to an increase in the biological competence of organisms to the environment. Based on the pig genome assembly SSC10.2, a segmental duplication of ~45.5 kb, encoding the entire B2M protein, was identified in pig chromosome 1...
2017: PloS One
https://www.readbyqxmd.com/read/28812804/barriers-to-the-implementation-of-the-health-and-rehabilitation-articles-of-the-united-nations-convention-on-the-rights-of-persons-with-disabilities-in-south-africa
#2
Meghan Hussey, Malcolm MacLachlan, Gubela Mji
BACKGROUND: The United Nations (UN) Convention on the Rights of Persons with Disabilities (CRPD) is a milestone in the recognition of the human rights of persons with disabilities, including the right to health and rehabilitation. South Africa has signed and ratified the CRPD but still has a long way to go in reforming policies and systems in order to be in compliance with the convention. This paper seeks to fill a gap in the literature by exploring what the barriers to the implementation of the health and rehabilitation articles of the CRPD are, as identified by representatives of the disability community...
August 28, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28810932/lncrna-neat1-promotes-growth-and-metastasis-of-cholangiocarcinoma-cells
#3
Cheng Zhang, Jing-Yi Li, Fu-Zhou Tian, Gang Zhao, Hai Hu, Yue-Feng Ma, Yu-Long Yang
Long non-coding RNAs (lncRNAs) are known to play important roles in cancers. However, little is known about lncRNAs incholangiocarcinoma (CCA), a cholangiocyte malignancy with poor prognosis. We investigated the role of Nuclear Paraspeckle Assembly Transcript 1 (NEAT1) lncRNA in promoting cholangiocarcinoma (CCA). qRT-PCR analysis of patient samples showed that NEAT1 expression was higher in CCA tumors than matched adjacent non-tumor tissue. NEAT1 levels were also higher in CCA cell lines than a normal biliary epithelium cell line (HIBEpic)...
August 15, 2017: Oncology Research
https://www.readbyqxmd.com/read/28810905/omni-polya-a-method-and-tool-for-accurate-recognition-of-poly-a-signals-in-human-genomic-dna
#4
Arturo Magana-Mora, Manal Kalkatawi, Vladimir B Bajic
BACKGROUND: Polyadenylation is a critical stage of RNA processing during the formation of mature mRNA, and is present in most of the known eukaryote protein-coding transcripts and many long non-coding RNAs. The correct identification of poly(A) signals (PAS) not only helps to elucidate the 3'-end genomic boundaries of a transcribed DNA region and gene regulatory mechanisms but also gives insight into the multiple transcript isoforms resulting from alternative PAS. Although progress has been made in the in-silico prediction of genomic signals, the recognition of PAS in DNA genomic sequences remains a challenge...
August 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28810830/annotating-long-intergenic-non-coding-rnas-under-artificial-selection-during-chicken-domestication
#5
Yun-Mei Wang, Hai-Bo Xu, Ming-Shan Wang, Newton Otieno Otecko, Ling-Qun Ye, Dong-Dong Wu, Ya-Ping Zhang
BACKGROUND: Numerous biological functions of long intergenic non-coding RNAs (lincRNAs) have been identified. However, the contribution of lincRNAs to the domestication process has remained elusive. Following domestication from their wild ancestors, animals display substantial changes in many phenotypic traits. Therefore, it is possible that diverse molecular drivers play important roles in this process. RESULTS: We analyzed 821 transcriptomes in this study and annotated 4754 lincRNA genes in the chicken genome...
August 15, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28808264/knockdown-of-lncrna-mir31hg-inhibits-adipocyte-differentiation-of-human-adipose-derived-stem-cells-via-histone-modification-of-fabp4
#6
Yiping Huang, Chanyuan Jin, Yunfei Zheng, Xiaobei Li, Shan Zhang, Yixin Zhang, Lingfei Jia, Weiran Li
Adipogenesis plays an important role in the regulation of whole-body energy homeostasis and is inextricably related to obesity. Several studies have highlighted the relevance of microRNAs in adipocyte differentiation, but the contributions of long non-coding RNAs (lncRNAs) are still largely uncharacterized. Here, we determined that lncRNA MIR31HG is related to adipocyte lineage commitment. We demonstrated that knockdown of MIR31HG inhibited adipocyte differentiation, whereas overexpression of MIR31HG promoted adipogenesis in vitro and in vivo...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808260/transcriptional-profiling-identifies-differential-expression-of-long-non-coding-rnas-in-jo-1-associated-and-inclusion-body-myositis
#7
Philip D Hamann, Benoit T Roux, James A Heward, Seth Love, Neil J McHugh, Simon W Jones, Mark A Lindsay
Myositis is characterised by muscle inflammation and weakness. Although generally thought to be driven by a systemic autoimmune response, increasing evidence suggests that intrinsic changes in the muscle might also contribute to the pathogenesis. Long non-coding RNAs (lncRNAs) are a family of novel genes that regulate gene transcription and translation. To determine the potential role of lncRNAs, we employed next generation sequencing to examine the transcriptome in muscle biopsies obtained from two histologically distinct patient populations, inclusion body myositis (IBM) and anti-Jo-1-associated myositis (Jo-1)...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807541/urinary-rna-based-biomarkers-for-prostate-cancer-detection
#8
REVIEW
Filippo Martignano, Lorena Rossi, Antonio Maugeri, Valentina Gallà, Vincenza Conteduca, Ugo De Giorgi, Valentina Casadio, Giuseppe Schepisi
Prostate cancer (PCa) is the commonest malignancy in the male population worldwide. Serum prostate specific antigen (PSA) test is the most important biomarker for the detection, follow-up and therapeutic monitoring of PCa. Defects in PSA specificity have elicited research for new biomarkers to improve early diagnosis and avoid false-positive results. This review evaluates urinary RNA-based biomarkers. Urine is a versatile body fluid for non-invasive biomarker detection in case of urological malignancies. The importance of RNA-based biomarkers has been demonstrated by the current use of PCA3, a long non coding RNA biomarker already approved by the Food and Drugs Administration...
August 11, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28806715/recurrent-networks-with-soft-thresholding-nonlinearities-for-lightweight-coding
#9
MohammadMehdi Kafashan, ShiNung Ching
A long-standing and influential hypothesis in neural information processing is that early sensory networks adapt themselves to produce efficient codes of afferent inputs. Here, we show how a nonlinear recurrent network provides an optimal solution for the efficient coding of an afferent input and its history. We specifically consider the problem of producing lightweight codes, ones that minimize both ℓ1 and ℓ2 constraints on sparsity and energy, respectively. When embedded in a linear coding paradigm, this problem results in a non-smooth convex optimization problem...
July 22, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28804550/long-noncoding-rna-meg3-suppressed-endothelial-cell-proliferation-and-migration-through-regulating-mir-21
#10
Ziheng Wu, Yangyan He, Donglin Li, Xin Fang, Tao Shang, Hongkun Zhang, Xiangtao Zheng
Long non-coding RNAs (lncRNAs) act critical roles in many biological processes, including cell proliferation, apoptosis, development, invasion and migration. LncRNA maternally expressed gene 3 (MEG3) is found to be downregulated in several tumors; however, its role in the atherosclerosis is still unknown. In the present study, we demonstrated that MEG3 expression level was downregulated in the coronary artery disease (CAD) tissues compared to in the control tissues. We also showed that TNF-α enhanced EC cell proliferation...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28803540/preparation-of-highly-multiplexed-small-rna-sequencing-libraries
#11
Helena Persson, Rolf Søkilde, Anna Chiara Pirona, Carlos Rovira
MicroRNAs (miRNAs) are ~22-nucleotide-long small non-coding RNAs that regulate the expression of protein-coding genes by base pairing to partially complementary target sites, preferentially located in the 3´ untranslated region (UTR) of target mRNAs. The expression and function of miRNAs have been extensively studied in human disease, as well as the possibility of using these molecules as biomarkers for prognostication and treatment guidance. To identify and validate miRNAs as biomarkers, their expression must be screened in large collections of patient samples...
August 1, 2017: BioTechniques
https://www.readbyqxmd.com/read/28803142/identification-and-characterization-of-a-long-non-coding-rna-up-regulated-during-hiv-1-infection
#12
Thomas S Postler, Shara N Pantry, Ronald C Desrosiers, Sankar Ghosh
Long non-coding RNAs (lncRNAs) are rapidly emerging as important regulators of a diverse array of cellular functions. Here, we describe a meta-analysis of two independent RNA-seq studies to identify lncRNAs that are differentially expressed upon HIV-1 infection. Only three lncRNA genes exhibited altered expression of ≥ 2-fold in HIV-1-infected cells. Of these, the uncharacterized lncRNA LINC00173 was chosen for further study. Both transcript variants of LINC00173 (lnc173 TSV1 and 2) could be detected by qPCR, localized predominantly to the nucleus and were reproducibly up-regulated during infection...
August 10, 2017: Virology
https://www.readbyqxmd.com/read/28802668/two-novel-lncrnas-discovered-in-human-mitochondrial-dna-using-pacbio-full-length-transcriptome-data
#13
Shan Gao, Xiaoxuan Tian, Hong Chang, Yu Sun, Zhenfeng Wu, Zhi Cheng, Pengzhi Dong, Qiang Zhao, Jishou Ruan, Wenjun Bu
In this study, we introduced a general framework to use PacBio full-length transcriptome sequencing for the investigation of mitochondrial RNAs. As a result, we produced the first full-length human mitochondrial transcriptome based on the public PacBio data and characterized the human mitochondrial transcriptome with more comprehensive and accurate information. Other results included the determination of the H-strand primary transcript, the identification of ND5/ND6AS/tRNA(Glu)AS, the discovery of palindrome small RNAs and the construction of "cleavage" model...
August 9, 2017: Mitochondrion
https://www.readbyqxmd.com/read/28801479/the-role-of-interactions-of-long-non-coding-rnas-and-heterogeneous-nuclear-ribonucleoproteins-in-regulating-cellular-functions
#14
REVIEW
Xinghui Sun, Mohamed Sham Shihabudeen Haider Ali, Matthew Moran
Long non-coding RNAs (lncRNAs) are emerging as critical regulators of various biological processes and human diseases. The mechanisms of action involve their interactions with proteins, RNA and genomic DNA. Most lncRNAs display strong nuclear localization. Heterogeneous nuclear ribonucleoproteins (hnRNPs) are a large family of RNA-binding proteins that are important for multiple aspects of nucleic acid metabolism. hnRNPs are also predominantly expressed in the nucleus. This review discusses the interactions of lncRNAs and hnRNPs in regulating gene expression at transcriptional and post-transcriptional levels or by changing genomic structure, highlighting their involvements in glucose and lipid metabolism, immune response, DNA damage response, and other cellular functions...
August 11, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28800794/long-intergenic-noncoding-rna-319-linc00319-promotes-cell-proliferation-and-invasion-in-lung-cancer-cells-by-directly-downregulating-the-tumor-suppressor-mir-32
#15
Bo Zhou, Wenwen Yuan, Xinping Li
Long non-coding RNAs (lncRNAs) have been shown to play important regulatory roles in the pathogenesis and progression of multiple cancers. Here, we investigated the role of long intergenic non coding RNA 319 (linc00319) in the proliferation and invasion of lung cancer cells. We found that, compared with normal lung cell line HBE, linc00319 was increased in low metastatic lung cancer cell lines PAa and AgiY-83a, and further increased in high metastatic lung cancer cell lines A549 and Anip-973. Then, different concentrations of pcDNA-linc00319 expression vector and different concentrations of linc00319 siRNA were respectively transfected into A549 lung cancer cells...
August 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/28800786/knockdown-of-long-noncoding-rna-linc0000125-suppresses-cellular-proliferation-and-invasion-in-glioma-cells-by-regulating-mir-4775
#16
Zhankun Zhu, Jinhua Dai, Yufeng Liao, Jianbo Ma, Wei Zhou
Long noncoding RNAs (lncRNAs) play an important role in various biological properties of glioma cells. Herein, we aimedto elucidate the function and the possible molecular mechanisms of long intergenic non-coding RNA 152 (LINC00152) in glioma cells. Relative expressions of LINC00152, miR-4775 and CDK6 in U-118 MG cells were regulated by transfections. Thereafter, cell viability, migration, invasion and apoptosis were analyzed by CCK8, Transwell and flow cytometry assays. Dual-luciferase reporter assay was conducted to validate the target genes of LINC00152 and miR-4775...
August 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/28800766/examining-non-ltr-retrotransposons-in-the-context-of-the-evolving-primate-brain
#17
REVIEW
Sara B Linker, Maria C Marchetto, Iñigo Narvaiza, Ahmet M Denli, Fred H Gage
Researchers have long sought to understand the genetic basis of the cognitive differences between primates, with particular focus on the human brain. Although all mutational types have worked in concert with evolutionary forces to generate the current human brain, in this review we will explore the impact of mobile elements, specifically non-LTR retrotransposons. Non-LTR retrotransposons have contributed coding and regulatory sequences to the genome throughout evolution. During primate evolution there have been multiple waves of LINE retrotransposition as well as the birth of new mobile elements such as the SINEs Alu and SVA and we will explore what kinds of impacts these may have had on the evolving human brain...
August 11, 2017: BMC Biology
https://www.readbyqxmd.com/read/28799568/association-of-long-non-coding-rna-h19-and-microrna-21-expression-with-the-biological-features-and-prognosis-of-non-small-cell-lung-cancer
#18
Y Zhou, B Sheng, Q Xia, X Guan, Y Zhang
In recent years, long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) have been shown to play important roles in tumor biological function. The aim of this study was to investigate the diagnostic and prognostic value of lncRNA H19 and miR-21 expression in non-small-cell lung cancer (NSCLC). H19 and miR-21 expression was measured in tumor tissues and corresponding non-tumor lung tissues from 200 patients by quantitative reverse transcription polymerase chain reaction. Moreover, the in vitro and in vivo effects of H19 knock out in A549 cells were investigated...
August 11, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28797301/sialotranscriptomics-of-rhipicephalus-zambeziensis-reveals-intricate-expression-profiles-of-secretory-proteins-and-suggests-tight-temporal-transcriptional-regulation-during-blood-feeding
#19
Minique Hilda de Castro, Daniel de Klerk, Ronel Pienaar, D Jasper G Rees, Ben J Mans
BACKGROUND: Ticks secrete a diverse mixture of secretory proteins into the host to evade its immune response and facilitate blood-feeding, making secretory proteins attractive targets for the production of recombinant anti-tick vaccines. The largely neglected tick species, Rhipicephalus zambeziensis, is an efficient vector of Theileria parva in southern Africa but its available sequence information is limited. Next generation sequencing has advanced sequence availability for ticks in recent years and has assisted the characterisation of secretory proteins...
August 10, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28796922/long-non-coding-rnas-and-prostate-cancer
#20
REVIEW
Aya Misawa, Ken-Ichi Takayama, Satoshi Inoue
Long non-coding RNAs (lncRNAs) are RNA transcripts larger than 200 nucleotides that do not code for proteins whose aberrant expression has been documented in various types of cancer, including prostate cancer. The lack of appropriate sensitive and specific biomarkers for prostate cancer has led to over-diagnosis and overtreatment, making lncRNAs promising novel biomarkers as well as therapeutic targets for the disease. This review attempts to summarize the current knowledge of lncRNA expression patterns and mechanisms in prostate cancer, which contribute to carcinogenesis...
August 10, 2017: Cancer Science
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