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  • Articles  (14)
  • Cell Line  (8)
  • 550 - Earth sciences  (6)
  • 1
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    Tet-mediated formation of 5-carboxylcytosine and its excision by TDG in mammalian DNA (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-06
    Description: The prevalent DNA modification in higher organisms is the methylation of cytosine to 5-methylcytosine (5mC), which is partially converted to 5-hydroxymethylcytosine (5hmC) by the Tet (ten eleven translocation) family of dioxygenases. Despite their importance in epigenetic regulation, it is unclear how these cytosine modifications are reversed. Here, we demonstrate that 5mC and 5hmC in DNA are oxidized to 5-carboxylcytosine (5caC) by Tet dioxygenases in vitro and in cultured cells. 5caC is specifically recognized and excised by thymine-DNA glycosylase (TDG). Depletion of TDG in mouse embyronic stem cells leads to accumulation of 5caC to a readily detectable level. These data suggest that oxidation of 5mC by Tet proteins followed by TDG-mediated base excision of 5caC constitutes a pathway for active DNA demethylation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3462231/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3462231/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉He, Yu-Fei -- Li, Bin-Zhong -- Li, Zheng -- Liu, Peng -- Wang, Yang -- Tang, Qingyu -- Ding, Jianping -- Jia, Yingying -- Chen, Zhangcheng -- Li, Lin -- Sun, Yan -- Li, Xiuxue -- Dai, Qing -- Song, Chun-Xiao -- Zhang, Kangling -- He, Chuan -- Xu, Guo-Liang -- 1S10RR027643-01/RR/NCRR NIH HHS/ -- GM071440/GM/NIGMS NIH HHS/ -- R01 GM071440/GM/NIGMS NIH HHS/ -- S10 RR027643/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2011 Sep 2;333(6047):1303-7. doi: 10.1126/science.1210944. Epub 2011 Aug 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Group of DNA Metabolism, State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21817016" target="_blank"〉PubMed〈/a〉
    Keywords: 5-Methylcytosine/metabolism ; Animals ; Cell Line ; Cytosine/*analogs & derivatives/metabolism ; DNA/*metabolism ; DNA Methylation ; DNA-Binding Proteins/genetics/*metabolism ; Embryonic Stem Cells ; HEK293 Cells ; Humans ; Induced Pluripotent Stem Cells/metabolism ; Mice ; Oxidation-Reduction ; Proto-Oncogene Proteins/genetics/*metabolism ; RNA, Small Interfering ; Thymine DNA Glycosylase/genetics/*metabolism ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Engineered CRISPR-Cas9 nucleases with altered PAM specificities (2015)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2015-06-23
    Description: Although CRISPR-Cas9 nucleases are widely used for genome editing, the range of sequences that Cas9 can recognize is constrained by the need for a specific protospacer adjacent motif (PAM). As a result, it can often be difficult to target double-stranded breaks (DSBs) with the precision that is necessary for various genome-editing applications. The ability to engineer Cas9 derivatives with purposefully altered PAM specificities would address this limitation. Here we show that the commonly used Streptococcus pyogenes Cas9 (SpCas9) can be modified to recognize alternative PAM sequences using structural information, bacterial selection-based directed evolution, and combinatorial design. These altered PAM specificity variants enable robust editing of endogenous gene sites in zebrafish and human cells not currently targetable by wild-type SpCas9, and their genome-wide specificities are comparable to wild-type SpCas9 as judged by GUIDE-seq analysis. In addition, we identify and characterize another SpCas9 variant that exhibits improved specificity in human cells, possessing better discrimination against off-target sites with non-canonical NAG and NGA PAMs and/or mismatched spacers. We also find that two smaller-size Cas9 orthologues, Streptococcus thermophilus Cas9 (St1Cas9) and Staphylococcus aureus Cas9 (SaCas9), function efficiently in the bacterial selection systems and in human cells, suggesting that our engineering strategies could be extended to Cas9s from other species. Our findings provide broadly useful SpCas9 variants and, more importantly, establish the feasibility of engineering a wide range of Cas9s with altered and improved PAM specificities.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4540238/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4540238/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kleinstiver, Benjamin P -- Prew, Michelle S -- Tsai, Shengdar Q -- Topkar, Ved V -- Nguyen, Nhu T -- Zheng, Zongli -- Gonzales, Andrew P W -- Li, Zhuyun -- Peterson, Randall T -- Yeh, Jing-Ruey Joanna -- Aryee, Martin J -- Joung, J Keith -- DP1 GM105378/DP/NCCDPHP CDC HHS/ -- DP1 GM105378/GM/NIGMS NIH HHS/ -- R01 GM088040/GM/NIGMS NIH HHS/ -- R01 GM107427/GM/NIGMS NIH HHS/ -- England -- Nature. 2015 Jul 23;523(7561):481-5. doi: 10.1038/nature14592. Epub 2015 Jun 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Molecular Pathology Unit &Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [2] Center for Computational and Integrative Biology, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [3] Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA. ; 1] Molecular Pathology Unit &Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [2] Center for Computational and Integrative Biology, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA. ; 1] Molecular Pathology Unit &Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [2] Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA [3] Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm SE-171 77, Sweden. ; 1] Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [2] Department of Systems Biology, Harvard Medical School, Boston, Massachusetts 02115, USA [3] Broad Institute, Cambridge, Massachusetts 02142, USA. ; Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA. ; 1] Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [2] Department of Medicine, Harvard Medical School, Boston, Massachusetts 02115, USA. ; 1] Molecular Pathology Unit &Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [2] Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA [3] Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26098369" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Substitution/genetics ; Animals ; CRISPR-Associated Proteins/*genetics/*metabolism ; CRISPR-Cas Systems ; Cell Line ; Clustered Regularly Interspaced Short Palindromic Repeats/*genetics ; Directed Molecular Evolution ; Genome/genetics ; Humans ; Mutation/genetics ; *Nucleotide Motifs ; Protein Engineering/*methods ; Staphylococcus aureus/enzymology ; Streptococcus pyogenes/*enzymology ; Streptococcus thermophilus/enzymology ; Substrate Specificity/genetics ; Zebrafish/embryology/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 3
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    Glioma-derived mutations in IDH1 dominantly inhibit IDH1 catalytic activity and induce HIF-1alpha (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-04-11
    Description: Heterozygous mutations in the gene encoding isocitrate dehydrogenase-1 (IDH1) occur in certain human brain tumors, but their mechanistic role in tumor development is unknown. We have shown that tumor-derived IDH1 mutations impair the enzyme's affinity for its substrate and dominantly inhibit wild-type IDH1 activity through the formation of catalytically inactive heterodimers. Forced expression of mutant IDH1 in cultured cells reduces formation of the enzyme product, alpha-ketoglutarate (alpha-KG), and increases the levels of hypoxia-inducible factor subunit HIF-1alpha, a transcription factor that facilitates tumor growth when oxygen is low and whose stability is regulated by alpha-KG. The rise in HIF-1alpha levels was reversible by an alpha-KG derivative. HIF-1alpha levels were higher in human gliomas harboring an IDH1 mutation than in tumors without a mutation. Thus, IDH1 appears to function as a tumor suppressor that, when mutationally inactivated, contributes to tumorigenesis in part through induction of the HIF-1 pathway.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3251015/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3251015/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhao, Shimin -- Lin, Yan -- Xu, Wei -- Jiang, Wenqing -- Zha, Zhengyu -- Wang, Pu -- Yu, Wei -- Li, Zhiqiang -- Gong, Lingling -- Peng, Yingjie -- Ding, Jianping -- Lei, Qunying -- Guan, Kun-Liang -- Xiong, Yue -- R01 CA068377/CA/NCI NIH HHS/ -- R01 CA068377-14/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 10;324(5924):261-5. doi: 10.1126/science.1170944.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular and Cell Biology Laboratory, Institute of Biomedical Sciences, Fudan University, 130 Dong-An Road, Shanghai 200032, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19359588" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Astrocytoma/genetics/metabolism ; Biocatalysis ; Brain Neoplasms/*genetics/metabolism ; Cell Line ; Child ; Female ; Gene Expression Regulation, Neoplastic ; Genes, Tumor Suppressor ; Glioblastoma/genetics/metabolism ; Glioma/*genetics/metabolism ; Humans ; Hypoxia-Inducible Factor 1, alpha Subunit/antagonists & ; inhibitors/genetics/*metabolism ; Isocitrate Dehydrogenase/chemistry/*genetics/*metabolism ; Ketoglutaric Acids/metabolism ; Male ; Middle Aged ; Mutant Proteins/chemistry/metabolism ; Oligodendroglioma/genetics/metabolism ; Oxalates/pharmacology ; Protein Multimerization
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Recurrent hemizygous deletions in cancers may optimize proliferative potential (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-26
    Description: Tumors exhibit numerous recurrent hemizygous focal deletions that contain no known tumor suppressors and are poorly understood. To investigate whether these regions contribute to tumorigenesis, we searched genetically for genes with cancer-relevant properties within these hemizygous deletions. We identified STOP and GO genes, which negatively and positively regulate proliferation, respectively. STOP genes include many known tumor suppressors, whereas GO genes are enriched for essential genes. Analysis of their chromosomal distribution revealed that recurring deletions preferentially overrepresent STOP genes and underrepresent GO genes. We propose a hypothesis called the cancer gene island model, whereby gene islands encompassing high densities of STOP genes and low densities of GO genes are hemizygously deleted to maximize proliferative fitness through cumulative haploinsufficiencies. Because hundreds to thousands of genes are hemizygously deleted per tumor, this mechanism may help to drive tumorigenesis across many cancer types.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4027969/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4027969/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Solimini, Nicole L -- Xu, Qikai -- Mermel, Craig H -- Liang, Anthony C -- Schlabach, Michael R -- Luo, Ji -- Burrows, Anna E -- Anselmo, Anthony N -- Bredemeyer, Andrea L -- Li, Mamie Z -- Beroukhim, Rameen -- Meyerson, Matthew -- Elledge, Stephen J -- T32 GM007753/GM/NIGMS NIH HHS/ -- T32GM07753/GM/NIGMS NIH HHS/ -- U54CA143798/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Jul 6;337(6090):104-9. doi: 10.1126/science.1219580. Epub 2012 May 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard University Medical School, and Division of Genetics, Howard Hughes Medical Institute, Brigham and Women's Hospital, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22628553" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Cell Line, Tumor ; *Cell Proliferation ; *Cell Transformation, Neoplastic ; Chromosome Mapping ; Genes, Essential ; *Genes, Neoplasm ; Genes, Recessive ; Genes, Tumor Suppressor ; *Haploinsufficiency ; Hemizygote ; Humans ; Models, Genetic ; Neoplasms/*genetics/*pathology ; Oncogenes ; *Sequence Deletion
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    RAG mutations in human B cell-negative SCID (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-10-04
    Description: Patients with human severe combined immunodeficiency (SCID) can be divided into those with B lymphocytes (B+ SCID) and those without (B- SCID). Although several genetic causes are known for B+ SCID, the etiology of B- SCID has not been defined. Six of 14 B- SCID patients tested were found to carry a mutation of the recombinase activating gene 1 (RAG-1), RAG-2, or both. This mutation resulted in a functional inability to form antigen receptors through genetic recombination and links a defect in one of the site-specific recombination systems to a human disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schwarz, K -- Gauss, G H -- Ludwig, L -- Pannicke, U -- Li, Z -- Lindner, D -- Friedrich, W -- Seger, R A -- Hansen-Hagge, T E -- Desiderio, S -- Lieber, M R -- Bartram, C R -- New York, N.Y. -- Science. 1996 Oct 4;274(5284):97-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Molecular Biology, University of Ulm, D-89070 Ulm, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8810255" target="_blank"〉PubMed〈/a〉
    Keywords: B-Lymphocytes/immunology ; Cell Line ; Consanguinity ; *DNA-Binding Proteins ; Female ; Genes, Immunoglobulin ; Genes, Recessive ; *Homeodomain Proteins ; Humans ; Immunophenotyping ; Male ; Mutation ; Nuclear Proteins ; Polymorphism, Single-Stranded Conformational ; Proteins/*genetics ; Receptors, Antigen, T-Cell/genetics ; Recombination, Genetic ; Sequence Deletion ; Severe Combined Immunodeficiency/*genetics/immunology ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Germline allele-specific expression of TGFBR1 confers an increased risk of colorectal cancer (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-08-16
    Description: Much of the genetic predisposition to colorectal cancer (CRC) in humans is unexplained. Studying a Caucasian-dominated population in the United States, we showed that germline allele-specific expression (ASE) of the gene encoding transforming growth factor-beta (TGF-beta) type I receptor, TGFBR1, is a quantitative trait that occurs in 10 to 20% of CRC patients and 1 to 3% of controls. ASE results in reduced expression of the gene, is dominantly inherited, segregates in families, and occurs in sporadic CRC cases. Although subtle, the reduction in constitutive TGFBR1 expression alters SMAD-mediated TGF-beta signaling. Two major TGFBR1 haplotypes are predominant among ASE cases, which suggests ancestral mutations, but causative germline changes have not been identified. Conservative estimates suggest that ASE confers a substantially increased risk of CRC (odds ratio, 8.7; 95% confidence interval, 2.6 to 29.1), but these estimates require confirmation and will probably show ethnic differences.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2672914/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2672914/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Valle, Laura -- Serena-Acedo, Tarsicio -- Liyanarachchi, Sandya -- Hampel, Heather -- Comeras, Ilene -- Li, Zhongyuan -- Zeng, Qinghua -- Zhang, Hong-Tao -- Pennison, Michael J -- Sadim, Maureen -- Pasche, Boris -- Tanner, Stephan M -- de la Chapelle, Albert -- CA108741/CA/NCI NIH HHS/ -- CA112520/CA/NCI NIH HHS/ -- CA16058/CA/NCI NIH HHS/ -- CA67941/CA/NCI NIH HHS/ -- R01 CA108741/CA/NCI NIH HHS/ -- R01 CA108741-01A2/CA/NCI NIH HHS/ -- R01 CA112520/CA/NCI NIH HHS/ -- R01 CA112520-01A1/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2008 Sep 5;321(5894):1361-5. doi: 10.1126/science.1159397. Epub 2008 Aug 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human Cancer Genetics Program, Comprehensive Cancer Center, Ohio State University, Columbus, OH 43210, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18703712" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Untranslated Regions ; Adult ; Aged ; Aged, 80 and over ; Alleles ; Cell Line ; Colorectal Neoplasms/*genetics ; Female ; *Gene Expression ; *Genetic Predisposition to Disease ; Haplotypes ; Heterozygote ; Humans ; Linkage Disequilibrium ; Male ; Middle Aged ; Polymorphism, Single Nucleotide ; Protein-Serine-Threonine Kinases/*genetics ; Quantitative Trait, Heritable ; Receptors, Transforming Growth Factor beta/*genetics ; Risk Factors ; Signal Transduction ; Smad3 Protein/metabolism ; Transforming Growth Factor beta/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Cancer proliferation gene discovery through functional genomics (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-02-02
    Description: Retroviral short hairpin RNA (shRNA)-mediated genetic screens in mammalian cells are powerful tools for discovering loss-of-function phenotypes. We describe a highly parallel multiplex methodology for screening large pools of shRNAs using half-hairpin barcodes for microarray deconvolution. We carried out dropout screens for shRNAs that affect cell proliferation and viability in cancer cells and normal cells. We identified many shRNAs to be antiproliferative that target core cellular processes, such as the cell cycle and protein translation, in all cells examined. Moreover, we identified genes that are selectively required for proliferation and survival in different cell lines. Our platform enables rapid and cost-effective genome-wide screens to identify cancer proliferation and survival genes for target discovery. Such efforts are complementary to the Cancer Genome Atlas and provide an alternative functional view of cancer cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2981870/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2981870/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schlabach, Michael R -- Luo, Ji -- Solimini, Nicole L -- Hu, Guang -- Xu, Qikai -- Li, Mamie Z -- Zhao, Zhenming -- Smogorzewska, Agata -- Sowa, Mathew E -- Ang, Xiaolu L -- Westbrook, Thomas F -- Liang, Anthony C -- Chang, Kenneth -- Hackett, Jennifer A -- Harper, J Wade -- Hannon, Gregory J -- Elledge, Stephen J -- F31 NS054507-01/NS/NINDS NIH HHS/ -- P01 CA013106/CA/NCI NIH HHS/ -- P01 CA013106-36/CA/NCI NIH HHS/ -- P01 CA013106-37/CA/NCI NIH HHS/ -- R01 AG011085/AG/NIA NIH HHS/ -- T32CA09216/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Feb 1;319(5863):620-4. doi: 10.1126/science.1149200.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Genetics, Center for Genetics and Genomics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18239126" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*genetics/pathology ; Cell Line ; Cell Line, Tumor ; *Cell Proliferation ; Cell Survival/genetics ; Colonic Neoplasms/*genetics/pathology ; Gene Library ; *Genes, Neoplasm ; Genetic Vectors ; Genome, Human ; Genomics/*methods ; Humans ; MicroRNAs ; Oligonucleotide Array Sequence Analysis ; RNA, Small Interfering ; Retroviridae/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    An alternative pluripotent state confers interspecies chimaeric competency (2015)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2015-05-07
    Description: Pluripotency, the ability to generate any cell type of the body, is an evanescent attribute of embryonic cells. Transitory pluripotent cells can be captured at different time points during embryogenesis and maintained as embryonic stem cells or epiblast stem cells in culture. Since ontogenesis is a dynamic process in both space and time, it seems counterintuitive that these two temporal states represent the full spectrum of organismal pluripotency. Here we show that by modulating culture parameters, a stem-cell type with unique spatial characteristics and distinct molecular and functional features, designated as region-selective pluripotent stem cells (rsPSCs), can be efficiently obtained from mouse embryos and primate pluripotent stem cells, including humans. The ease of culturing and editing the genome of human rsPSCs offers advantages for regenerative medicine applications. The unique ability of human rsPSCs to generate post-implantation interspecies chimaeric embryos may facilitate our understanding of early human development and evolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Jun -- Okamura, Daiji -- Li, Mo -- Suzuki, Keiichiro -- Luo, Chongyuan -- Ma, Li -- He, Yupeng -- Li, Zhongwei -- Benner, Chris -- Tamura, Isao -- Krause, Marie N -- Nery, Joseph R -- Du, Tingting -- Zhang, Zhuzhu -- Hishida, Tomoaki -- Takahashi, Yuta -- Aizawa, Emi -- Kim, Na Young -- Lajara, Jeronimo -- Guillen, Pedro -- Campistol, Josep M -- Esteban, Concepcion Rodriguez -- Ross, Pablo J -- Saghatelian, Alan -- Ren, Bing -- Ecker, Joseph R -- Izpisua Belmonte, Juan Carlos -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 May 21;521(7552):316-21. doi: 10.1038/nature14413. Epub 2015 May 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Salk Institute for Biological Studies, Gene Expression Laboratory, La Jolla, California 92037, USA. ; 1] Howard Hughes Medical Institute, The Salk Institute for Biological Studies, La Jolla, California 92037, USA [2] The Salk Institute for Biological Studies, Genomic Analysis Laboratory, La Jolla, California 92037, USA. ; The Salk Institute for Biological Studies, Genomic Analysis Laboratory, La Jolla, California 92037, USA. ; The Salk Institute for Biological Studies, Integrated Genomics, La Jolla, California 92037, USA. ; Ludwig Institute for Cancer Research, University of California, San Diego School of Medicine, Department of Cellular and Molecular Medicine, 9500 Gilman Drive, La Jolla, California 92093-0653, USA. ; 1] The Salk Institute for Biological Studies, Gene Expression Laboratory, La Jolla, California 92037, USA [2] Life Science Center, Tsukuba Advanced Research Alliance, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8577, Japan. ; Grado en Medicina, Universidad Catolica, San Antonio de Murcia, Campus de los Jeronimos, 135, Guadalupe 30107, Spain. ; 1] Grado en Medicina, Universidad Catolica, San Antonio de Murcia, Campus de los Jeronimos, 135, Guadalupe 30107, Spain [2] Fundacion Pedro Guillen, Clinica Cemtro, Avenida Ventisquero de la Condesa, 42, 28035 Madrid, Spain. ; Hospital Clinic of Barcelona, Carrer Villarroel, 170, 08036 Barcelona, Spain. ; University of California, Davis, Davis, California 95616, USA. ; The Salk Institute for Biological Studies, Peptide Biology Laboratory, La Jolla, California 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25945737" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Culture Techniques/methods ; Cell Line ; *Chimera ; Embryonic Stem Cells/cytology ; Female ; Germ Layers/cytology ; Humans ; Induced Pluripotent Stem Cells/cytology ; Male ; Mice ; Pan troglodytes ; Pluripotent Stem Cells/*cytology/metabolism ; Regenerative Medicine ; Species Specificity
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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    New seismic constraints on the shallow structure of the Hainan plume (2009)
    In:  Physics of the Earth and Planetary Interiors
    Details
    Publication Date: 2020-02-12
    Description: We present a high-resolution tomographic image in the upper mantle for the Hainan plume determined by using both local and teleseismic data. The arrival-time data from teleseismic events are measured precisely from seismograms recorded by nine permanent seismic stations in Hainan island and Leizhou peninsula. Our results show that striking low-velocity (low-V) anomalies of up to −5% in the crust and −2% in the mantle are visible under the Hainan hotspot from the surface down to 250 km depth. The Hainan plume is imaged as a continuous, NW–SE tilting, low-V column with a diameter of about 80 km. Given the denser data coverage and finer parameterization, our result represents a significant improvement with respect to earlier, regional and global tomographic studies. Such an inclination of the Hainan plume can be explained by numerical simulations. The tilted plume conduit in the upper mantle could be associated with the subduction of oceanic plates, especially the Philippine Sea plate, and the extrusion of the Eurasian plate. Most likely, the tilted plume conduit has buoyantly risen from the lower mantle.
    Keywords: 550 - Earth sciences
    Type: info:eu-repo/semantics/article
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    The Convective Storm Initiation Project (2007)
    In:  Bulletin of the American Meteorological Society
    Details
    Publication Date: 2020-02-12
    Description: The Convective Storm Initiation Project (CSIP) is an international project to understand precisely where, when, and how convective clouds form and develop into showers in the mainly maritime environment of southern England. A major aim of CSIP is to compare the results of the very high resolution Met Office weather forecasting model with detailed observations of the early stages of convective clouds and to use the newly gained understanding to improve the predictions of the model. A large array of ground-based instruments plus two instrumented aircraft, from the U.K. National Centre for Atmospheric Science (NCAS) and the German Institute for Meteorology and Climate Research (IMK), Karlsruhe, were deployed in southern England, over an area centered on the meteorological radars at Chilbolton, during the summers of 2004 and 2005. In addition to a variety of ground-based remote-sensing instruments, numerous rawin-sondes were released at one- to two-hourly intervals from six closely spaced sites. The Met Office weather radar network and Meteosat satellite imagery were used to provide context for the observations made by the instruments deployed during CSIP. This article presents an overview of the CSIP field campaign and examples from CSIP of the types of convective initiation phenomena that are typical in the United Kingdom. It shows the way in which certain kinds of observational data are able to reveal these phenomena and gives an explanation of how the analyses of data from the field campaign will be used in the development of an improved very high resolution NWP model for operational use.
    Keywords: 550 - Earth sciences
    Type: info:eu-repo/semantics/article
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