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  • 1
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    Discovery of insect and human dengue virus host factors (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-04-28
    Description: Dengue fever is the most frequent arthropod-borne viral disease of humans, with almost half of the world's population at risk of infection. The high prevalence, lack of an effective vaccine, and absence of specific treatment conspire to make dengue fever a global public health threat. Given their compact genomes, dengue viruses (DENV-1-4) and other flaviviruses probably require an extensive number of host factors; however, only a limited number of human, and an even smaller number of insect host factors, have been identified. Here we identify insect host factors required for DENV-2 propagation, by carrying out a genome-wide RNA interference screen in Drosophila melanogaster cells using a well-established 22,632 double-stranded RNA library. This screen identified 116 candidate dengue virus host factors (DVHFs). Although some were previously associated with flaviviruses (for example, V-ATPases and alpha-glucosidases), most of the DVHFs were newly implicated in dengue virus propagation. The dipteran DVHFs had 82 readily recognizable human homologues and, using a targeted short-interfering-RNA screen, we showed that 42 of these are human DVHFs. This indicates notable conservation of required factors between dipteran and human hosts. This work suggests new approaches to control infection in the insect vector and the mammalian host.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3462662/" 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/PMC3462662/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sessions, October M -- Barrows, Nicholas J -- Souza-Neto, Jayme A -- Robinson, Timothy J -- Hershey, Christine L -- Rodgers, Mary A -- Ramirez, Jose L -- Dimopoulos, George -- Yang, Priscilla L -- Pearson, James L -- Garcia-Blanco, Mariano A -- 1R01AI061576-01/AI/NIAID NIH HHS/ -- 1R01AI076442/AI/NIAID NIH HHS/ -- 1SA0RR024572-1/RR/NCRR NIH HHS/ -- 5P30-CA14236/CA/NCI NIH HHS/ -- 5U54-AI057157-05S/AI/NIAID NIH HHS/ -- R01 AI076442/AI/NIAID NIH HHS/ -- R01 AI078997/AI/NIAID NIH HHS/ -- R01 AI078997-01A1/AI/NIAID NIH HHS/ -- R01 AI078997-02/AI/NIAID NIH HHS/ -- R01 GM067761/GM/NIGMS NIH HHS/ -- R21 AI090188/AI/NIAID NIH HHS/ -- R21 AI090188-01/AI/NIAID NIH HHS/ -- R21 NS063845/NS/NINDS NIH HHS/ -- R21-AI64925/AI/NIAID NIH HHS/ -- T32 AI007417/AI/NIAID NIH HHS/ -- U54 AI057157/AI/NIAID NIH HHS/ -- U54 AI057159/AI/NIAID NIH HHS/ -- England -- Nature. 2009 Apr 23;458(7241):1047-50. doi: 10.1038/nature07967.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19396146" target="_blank"〉PubMed〈/a〉
    Keywords: Aedes/genetics/virology ; Animals ; Cell Line ; Conserved Sequence/*genetics/physiology ; Dengue Virus/*physiology ; Drosophila melanogaster/*genetics/physiology/*virology ; Gene Knockdown Techniques ; Genome, Insect/genetics ; Host-Pathogen Interactions/*genetics ; Humans ; Insect Vectors/*genetics/*physiology ; RNA Interference ; RNA, Double-Stranded/genetics/metabolism ; Virus Replication
    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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  • 2
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    HIN-200 proteins regulate caspase activation in response to foreign cytoplasmic DNA (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-01-10
    Description: The mammalian innate immune system is activated by foreign nucleic acids. Detection of double-stranded DNA (dsDNA) in the cytoplasm triggers characteristic antiviral responses and macrophage cell death. Cytoplasmic dsDNA rapidly activated caspase 3 and caspase 1 in bone marrow-derived macrophages. We identified the HIN-200 family member and candidate lupus susceptibility factor, p202, as a dsDNA binding protein that bound stably and rapidly to transfected DNA. Knockdown studies showed p202 to be an inhibitor of DNA-induced caspase activation. Conversely, the related pyrin domain-containing HIN-200 factor, AIM2 (p210), was required for caspase activation by cytoplasmic dsDNA. This work indicates that HIN-200 proteins can act as pattern recognition receptors mediating responses to cytoplasmic dsDNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, Tara L -- Idris, Adi -- Dunn, Jasmyn A -- Kelly, Greg M -- Burnton, Carol M -- Hodgson, Samantha -- Hardy, Lani L -- Garceau, Valerie -- Sweet, Matthew J -- Ross, Ian L -- Hume, David A -- Stacey, Katryn J -- New York, N.Y. -- Science. 2009 Feb 20;323(5917):1057-60. doi: 10.1126/science.1169841. Epub 2009 Jan 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The University of Queensland, Institute for Molecular Bioscience, QLD 4072, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19131592" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caspase 1/*metabolism ; Caspase 3/*metabolism ; Cell Line ; Cytoplasm/*metabolism ; DNA/immunology/*metabolism ; DNA-Binding Proteins/isolation & purification/metabolism ; Enzyme Activation ; Immunity, Innate ; Intracellular Signaling Peptides and Proteins/chemistry/genetics/isolation & ; purification/*metabolism ; Macrophages/immunology/*metabolism ; Membrane Proteins/chemistry/genetics/*metabolism ; Mice ; Mice, Inbred Strains ; RNA, Small Interfering ; Receptors, Pattern Recognition/*metabolism ; Symporters ; 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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  • 3
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    Cancer-associated IDH1 mutations produce 2-hydroxyglutarate (2009)
    Nature Publishing Group (NPG)
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    Publication Date: 2009-11-26
    Description: Mutations in the enzyme cytosolic isocitrate dehydrogenase 1 (IDH1) are a common feature of a major subset of primary human brain cancers. These mutations occur at a single amino acid residue of the IDH1 active site, resulting in loss of the enzyme's ability to catalyse conversion of isocitrate to alpha-ketoglutarate. However, only a single copy of the gene is mutated in tumours, raising the possibility that the mutations do not result in a simple loss of function. Here we show that cancer-associated IDH1 mutations result in a new ability of the enzyme to catalyse the NADPH-dependent reduction of alpha-ketoglutarate to R(-)-2-hydroxyglutarate (2HG). Structural studies demonstrate that when arginine 132 is mutated to histidine, residues in the active site are shifted to produce structural changes consistent with reduced oxidative decarboxylation of isocitrate and acquisition of the ability to convert alpha-ketoglutarate to 2HG. Excess accumulation of 2HG has been shown to lead to an elevated risk of malignant brain tumours in patients with inborn errors of 2HG metabolism. Similarly, in human malignant gliomas harbouring IDH1 mutations, we find markedly elevated levels of 2HG. These data demonstrate that the IDH1 mutations result in production of the onco-metabolite 2HG, and indicate that the excess 2HG which accumulates in vivo contributes to the formation and malignant progression of gliomas.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2818760/" 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/PMC2818760/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dang, Lenny -- White, David W -- Gross, Stefan -- Bennett, Bryson D -- Bittinger, Mark A -- Driggers, Edward M -- Fantin, Valeria R -- Jang, Hyun Gyung -- Jin, Shengfang -- Keenan, Marie C -- Marks, Kevin M -- Prins, Robert M -- Ward, Patrick S -- Yen, Katharine E -- Liau, Linda M -- Rabinowitz, Joshua D -- Cantley, Lewis C -- Thompson, Craig B -- Vander Heiden, Matthew G -- Su, Shinsan M -- P01 CA104838/CA/NCI NIH HHS/ -- P01 CA104838-05/CA/NCI NIH HHS/ -- P30 EB009998/EB/NIBIB NIH HHS/ -- R01 CA105463/CA/NCI NIH HHS/ -- R01 CA105463-06/CA/NCI NIH HHS/ -- R21 CA128620/CA/NCI NIH HHS/ -- England -- Nature. 2009 Dec 10;462(7274):739-44. doi: 10.1038/nature08617. Epub .〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Agios Pharmaceuticals, Cambridge, Massachusetts 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19935646" target="_blank"〉PubMed〈/a〉
    Keywords: Arginine/genetics ; Brain Neoplasms/*genetics/*metabolism/pathology ; Catalytic Domain ; Cell Line ; Crystallography, X-Ray ; Disease Progression ; Enzyme Assays ; Glioma/genetics/metabolism/pathology ; Glutarates/*metabolism ; Histidine/genetics/metabolism ; Humans ; Isocitrate Dehydrogenase/*genetics/*metabolism ; Ketoglutaric Acids/metabolism ; Models, Molecular ; Mutant Proteins/*genetics/*metabolism ; Mutation/genetics ; Protein Conformation
    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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  • 4
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    Human ISL1 heart progenitors generate diverse multipotent cardiovascular cell lineages (2009)
    Nature Publishing Group (NPG)
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    Publication Date: 2009-07-03
    Description: The generation and expansion of diverse cardiovascular cell lineages is a critical step during human cardiogenesis, with major implications for congenital heart disease. Unravelling the mechanisms for the diversification of human heart cell lineages has been hampered by the lack of genetic tools to purify early cardiac progenitors and define their developmental potential. Recent studies in the mouse embryo have identified a multipotent cardiac progenitor that contributes to all of the major cell types in the murine heart. In contrast to murine development, human cardiogenesis has a much longer onset of heart cell lineage diversification and expansion, suggesting divergent pathways. Here we identify a diverse set of human fetal ISL1(+) cardiovascular progenitors that give rise to the cardiomyocyte, smooth muscle and endothelial cell lineages. Using two independent transgenic and gene-targeting approaches in human embryonic stem cell lines, we show that purified ISL1(+) primordial progenitors are capable of self-renewal and expansion before differentiation into the three major cell types in the heart. These results lay the foundation for the generation of human model systems for cardiovascular disease and novel approaches for human regenerative cardiovascular medicine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bu, Lei -- Jiang, Xin -- Martin-Puig, Silvia -- Caron, Leslie -- Zhu, Shenjun -- Shao, Ying -- Roberts, Drucilla J -- Huang, Paul L -- Domian, Ibrahim J -- Chien, Kenneth R -- England -- Nature. 2009 Jul 2;460(7251):113-7. doi: 10.1038/nature08191.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cardiovascular Research Center, Massachusetts General Hospital, Charles River Plaza/CPZN 3208, 185 Cambridge Street, Boston, Massachusetts 02114, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19571884" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Differentiation ; Cell Division ; Cell Line ; *Cell Lineage ; Coculture Techniques ; Embryonic Stem Cells/cytology/metabolism ; Endothelial Cells/cytology ; Fetus/cytology/embryology ; Heart/embryology ; Homeodomain Proteins/*metabolism ; Humans ; LIM-Homeodomain Proteins ; Multipotent Stem Cells/*cytology/*metabolism ; Muscle, Smooth/cytology ; Myocardium/*cytology ; Myocytes, Cardiac/cytology ; Transcription Factors ; Wnt Proteins/metabolism ; Wnt3 Protein
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 5
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    iPS cells produce viable mice through tetraploid complementation (2009)
    Nature Publishing Group (NPG)
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    Publication Date: 2009-08-13
    Description: Since the initial description of induced pluripotent stem (iPS) cells created by forced expression of four transcription factors in mouse fibroblasts, the technique has been used to generate embryonic stem (ES)-cell-like pluripotent cells from a variety of cell types in other species, including primates and rat. It has become a popular means to reprogram somatic genomes into an embryonic-like pluripotent state, and a preferred alternative to somatic-cell nuclear transfer and somatic-cell fusion with ES cells. However, iPS cell reprogramming remains slow and inefficient. Notably, no live animals have been produced by the most stringent tetraploid complementation assay, indicative of a failure to create fully pluripotent cells. Here we report the generation of several iPS cell lines that are capable of generating viable, fertile live-born progeny by tetraploid complementation. These iPS cells maintain a pluripotent potential that is very close to ES cells generated from in vivo or nuclear transfer embryos. We demonstrate the practicality of using iPS cells as useful tools for the characterization of cellular reprogramming and developmental potency, and confirm that iPS cells can attain true pluripotency that is similar to that of ES cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhao, Xiao-yang -- Li, Wei -- Lv, Zhuo -- Liu, Lei -- Tong, Man -- Hai, Tang -- Hao, Jie -- Guo, Chang-long -- Ma, Qing-wen -- Wang, Liu -- Zeng, Fanyi -- Zhou, Qi -- England -- Nature. 2009 Sep 3;461(7260):86-90. doi: 10.1038/nature08267.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19672241" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst/cytology/physiology ; Cell Dedifferentiation/physiology ; Cell Line ; Cell Lineage ; Cellular Reprogramming ; Embryo, Mammalian/cytology/embryology/metabolism ; Embryonic Stem Cells/cytology/physiology ; Female ; Fibroblasts/cytology ; Gene Expression Profiling ; Genetic Complementation Test ; Male ; Mice ; Mice, SCID ; Pluripotent Stem Cells/cytology/*physiology ; *Polyploidy ; Pregnancy ; *Reproductive Techniques ; Survival Rate ; Teratoma
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 6
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    Human host factors required for influenza virus replication (2009)
    Nature Publishing Group (NPG)
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    Publication Date: 2009-12-23
    Description: Influenza A virus is an RNA virus that encodes up to 11 proteins and this small coding capacity demands that the virus use the host cellular machinery for many aspects of its life cycle. Knowledge of these host cell requirements not only informs us of the molecular pathways exploited by the virus but also provides further targets that could be pursued for antiviral drug development. Here we use an integrative systems approach, based on genome-wide RNA interference screening, to identify 295 cellular cofactors required for early-stage influenza virus replication. Within this group, those involved in kinase-regulated signalling, ubiquitination and phosphatase activity are the most highly enriched, and 181 factors assemble into a highly significant host-pathogen interaction network. Moreover, 219 of the 295 factors were confirmed to be required for efficient wild-type influenza virus growth, and further analysis of a subset of genes showed 23 factors necessary for viral entry, including members of the vacuolar ATPase (vATPase) and COPI-protein families, fibroblast growth factor receptor (FGFR) proteins, and glycogen synthase kinase 3 (GSK3)-beta. Furthermore, 10 proteins were confirmed to be involved in post-entry steps of influenza virus replication. These include nuclear import components, proteases, and the calcium/calmodulin-dependent protein kinase (CaM kinase) IIbeta (CAMK2B). Notably, growth of swine-origin H1N1 influenza virus is also dependent on the identified host factors, and we show that small molecule inhibitors of several factors, including vATPase and CAMK2B, antagonize influenza virus replication.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2862546/" 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/PMC2862546/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Konig, Renate -- Stertz, Silke -- Zhou, Yingyao -- Inoue, Atsushi -- Hoffmann, H-Heinrich -- Bhattacharyya, Suchita -- Alamares, Judith G -- Tscherne, Donna M -- Ortigoza, Mila B -- Liang, Yuhong -- Gao, Qinshan -- Andrews, Shane E -- Bandyopadhyay, Sourav -- De Jesus, Paul -- Tu, Buu P -- Pache, Lars -- Shih, Crystal -- Orth, Anthony -- Bonamy, Ghislain -- Miraglia, Loren -- Ideker, Trey -- Garcia-Sastre, Adolfo -- Young, John A T -- Palese, Peter -- Shaw, Megan L -- Chanda, Sumit K -- 1 P01 AI058113/AI/NIAID NIH HHS/ -- 1 S10 RR0 9145-01/RR/NCRR NIH HHS/ -- 1 T32 AI07647/AI/NIAID NIH HHS/ -- 1F32AI081428/AI/NIAID NIH HHS/ -- 1R21AI083673/AI/NIAID NIH HHS/ -- 5R24 CA095823-04/CA/NCI NIH HHS/ -- HHSN266200700010C/PHS HHS/ -- HHSN272200900032C/PHS HHS/ -- P01 AI058113/AI/NIAID NIH HHS/ -- P01 AI058113-010004/AI/NIAID NIH HHS/ -- P01 AI058113-020004/AI/NIAID NIH HHS/ -- P01 AI058113-030004/AI/NIAID NIH HHS/ -- P01 AI058113-040004/AI/NIAID NIH HHS/ -- P01 AI058113-050004/AI/NIAID NIH HHS/ -- T32 AI007647/AI/NIAID NIH HHS/ -- T32 AI007647-01/AI/NIAID NIH HHS/ -- T32 AI007647-02/AI/NIAID NIH HHS/ -- T32 AI007647-03/AI/NIAID NIH HHS/ -- T32 AI007647-04/AI/NIAID NIH HHS/ -- T32 AI007647-05/AI/NIAID NIH HHS/ -- T32 AI007647-06/AI/NIAID NIH HHS/ -- T32 AI007647-07/AI/NIAID NIH HHS/ -- T32 AI007647-08/AI/NIAID NIH HHS/ -- T32 AI007647-09/AI/NIAID NIH HHS/ -- T32 AI007647-10/AI/NIAID NIH HHS/ -- T32 GM007280/GM/NIGMS NIH HHS/ -- U01 AI074539/AI/NIAID NIH HHS/ -- U01 AI074539-01/AI/NIAID NIH HHS/ -- U01 AI074539-02/AI/NIAID NIH HHS/ -- U01 AI074539-03/AI/NIAID NIH HHS/ -- U01 AI1074539/AI/NIAID NIH HHS/ -- U54 AI057158/AI/NIAID NIH HHS/ -- U54 AI057158-065713/AI/NIAID NIH HHS/ -- U54 AI057159/AI/NIAID NIH HHS/ -- England -- Nature. 2010 Feb 11;463(7282):813-7. doi: 10.1038/nature08699.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Infectious and Inflammatory Disease Center, Burnham Institute for Medical Research.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20027183" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Factors/*genetics/*physiology ; Cell Line ; Cercopithecus aethiops ; Gene Library ; Genome, Human/genetics ; Host-Pathogen Interactions/genetics/*physiology ; Humans ; Influenza A Virus, H1N1 Subtype/classification/growth & development ; Influenza A virus/classification/*growth & development ; Influenza, Human/*genetics/*virology ; RNA Interference ; Vero Cells ; Virus Internalization ; Virus Replication/*physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 7
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    Analysis of Drosophila segmentation network identifies a JNK pathway factor overexpressed in kidney cancer (2009)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2009-01-24
    Description: We constructed a large-scale functional network model in Drosophila melanogaster built around two key transcription factors involved in the process of embryonic segmentation. Analysis of the model allowed the identification of a new role for the ubiquitin E3 ligase complex factor SPOP. In Drosophila, the gene encoding SPOP is a target of segmentation transcription factors. Drosophila SPOP mediates degradation of the Jun kinase phosphatase Puckered, thereby inducing tumor necrosis factor (TNF)/Eiger-dependent apoptosis. In humans, we found that SPOP plays a conserved role in TNF-mediated JNK signaling and was highly expressed in 99% of clear cell renal cell carcinomas (RCCs), the most prevalent form of kidney cancer. SPOP expression distinguished histological subtypes of RCC and facilitated identification of clear cell RCC as the primary tumor for metastatic lesions.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2756524/" 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/PMC2756524/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Jiang -- Ghanim, Murad -- Xue, Lei -- Brown, Christopher D -- Iossifov, Ivan -- Angeletti, Cesar -- Hua, Sujun -- Negre, Nicolas -- Ludwig, Michael -- Stricker, Thomas -- Al-Ahmadie, Hikmat A -- Tretiakova, Maria -- Camp, Robert L -- Perera-Alberto, Montse -- Rimm, David L -- Xu, Tian -- Rzhetsky, Andrey -- White, Kevin P -- P50 GM081892/GM/NIGMS NIH HHS/ -- P50 GM081892-01A1/GM/NIGMS NIH HHS/ -- R01 HG003012/HG/NHGRI NIH HHS/ -- R01 HG003012-04/HG/NHGRI NIH HHS/ -- UL1 RR024999/RR/NCRR NIH HHS/ -- UL1 RR024999-02/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2009 Feb 27;323(5918):1218-22. doi: 10.1126/science.1157669. Epub 2009 Jan 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Genomics and Systems Biology, University of Chicago and Argonne National Laboratory, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19164706" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Apoptosis ; Carcinoma, Renal Cell/*genetics/metabolism ; Cell Line ; Compound Eye, Arthropod/embryology/metabolism ; Drosophila Proteins/genetics/metabolism ; Drosophila melanogaster/embryology/*genetics/metabolism ; Embryo, Nonmammalian/metabolism ; Fushi Tarazu Transcription Factors/genetics/metabolism ; Gene Expression Profiling ; Gene Regulatory Networks ; Homeodomain Proteins/genetics/metabolism ; Humans ; Janus Kinases/*metabolism ; Kidney/metabolism ; Kidney Neoplasms/*genetics/metabolism ; Molecular Sequence Data ; Nervous System/embryology ; Nuclear Proteins/*genetics/metabolism ; Phosphoprotein Phosphatases/metabolism ; Phosphorylation ; Repressor Proteins/*genetics/metabolism ; *Signal Transduction ; Transcription Factors/genetics/metabolism ; Transcription, Genetic
    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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    Genetic code supports targeted insertion of two amino acids by one codon (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-01-10
    Description: Strict one-to-one correspondence between codons and amino acids is thought to be an essential feature of the genetic code. However, we report that one codon can code for two different amino acids with the choice of the inserted amino acid determined by a specific 3' untranslated region structure and location of the dual-function codon within the messenger RNA (mRNA). We found that the codon UGA specifies insertion of selenocysteine and cysteine in the ciliate Euplotes crassus, that the dual use of this codon can occur even within the same gene, and that the structural arrangements of Euplotes mRNA preserve location-dependent dual function of UGA when expressed in mammalian cells. Thus, the genetic code supports the use of one codon to code for multiple amino acids.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3088105/" 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/PMC3088105/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Turanov, Anton A -- Lobanov, Alexey V -- Fomenko, Dmitri E -- Morrison, Hilary G -- Sogin, Mitchell L -- Klobutcher, Lawrence A -- Hatfield, Dolph L -- Gladyshev, Vadim N -- AI058054/AI/NIAID NIH HHS/ -- GM061603/GM/NIGMS NIH HHS/ -- GM065204/GM/NIGMS NIH HHS/ -- R01 GM061603/GM/NIGMS NIH HHS/ -- R01 GM061603-04S2/GM/NIGMS NIH HHS/ -- ZIA BC010767-03/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 9;323(5911):259-61. doi: 10.1126/science.1164748.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Redox Biology Center, University of Nebraska, Lincoln, NE 68588, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19131629" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Untranslated Regions ; Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Codon/*genetics ; Codon, Terminator/*genetics ; Cysteine/*genetics/metabolism ; Euplotes/chemistry/*genetics ; *Genetic Code ; Humans ; Molecular Sequence Data ; Mutation ; Protozoan Proteins/biosynthesis/chemistry/genetics ; RNA, Protozoan/genetics/metabolism ; RNA, Transfer, Amino Acid-Specific/chemistry/genetics ; RNA, Transfer, Cys/chemistry/genetics ; Recombinant Fusion Proteins/metabolism ; Selenocysteine/*genetics/metabolism ; Selenoproteins/biosynthesis/chemistry/*genetics
    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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    Requirement for NF-kappaB signalling in a mouse model of lung adenocarcinoma (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-10-23
    Description: NF-kappaB transcription factors function as crucial regulators of inflammatory and immune responses as well as of cell survival. They have also been implicated in cellular transformation and tumorigenesis. However, despite extensive biochemical characterization of NF-kappaB signalling during the past twenty years, the requirement for NF-kappaB in tumour development in vivo, particularly in solid tumours, is not completely understood. Here we show that the NF-kappaB pathway is required for the development of tumours in a mouse model of lung adenocarcinoma. Concomitant loss of p53 (also known as Trp53) and expression of oncogenic Kras(G12D) resulted in NF-kappaB activation in primary mouse embryonic fibroblasts. Conversely, in lung tumour cell lines expressing Kras(G12D) and lacking p53, p53 restoration led to NF-kappaB inhibition. Furthermore, the inhibition of NF-kappaB signalling induced apoptosis in p53-null lung cancer cell lines. Inhibition of the pathway in lung tumours in vivo, from the time of tumour initiation or after tumour progression, resulted in significantly reduced tumour development. Together, these results indicate a critical function for NF-kappaB signalling in lung tumour development and, further, that this requirement depends on p53 status. These findings also provide support for the development of NF-kappaB inhibitory drugs as targeted therapies for the treatment of patients with defined mutations in Kras and p53.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2780341/" 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/PMC2780341/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meylan, Etienne -- Dooley, Alison L -- Feldser, David M -- Shen, Lynn -- Turk, Erin -- Ouyang, Chensi -- Jacks, Tyler -- P30 CA014051/CA/NCI NIH HHS/ -- P30 CA014051-37/CA/NCI NIH HHS/ -- P30 CA014051-38/CA/NCI NIH HHS/ -- P30-CA14051/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2009 Nov 5;462(7269):104-7. doi: 10.1038/nature08462. Epub 2009 Oct 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Koch Institute for Integrative Cancer Research, and Department of Biology, and Howard Hughes Medical Institute, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19847165" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/*metabolism/*pathology ; Animals ; Apoptosis ; Carcinoma, Non-Small-Cell Lung/metabolism/pathology ; Cell Line ; Cell Line, Tumor ; Cell Survival ; Cells, Cultured ; DNA/metabolism ; *Disease Models, Animal ; Fibroblasts ; Genes, p53/genetics ; Humans ; Lung Neoplasms/*metabolism/*pathology ; Mice ; NF-kappa B/antagonists & inhibitors/*metabolism ; Oncogene Protein p21(ras)/genetics/metabolism ; *Signal Transduction ; Transcription Factor RelA/metabolism ; Tumor Suppressor Protein p53/deficiency/genetics/metabolism
    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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  • 10
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    The SUMO modification pathway is involved in the BRCA1 response to genotoxic stress (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-12-18
    Description: Mutations in BRCA1 are associated with a high risk of breast and ovarian cancer. BRCA1 participates in the DNA damage response and acts as a ubiquitin ligase. However, its regulation remains poorly understood. Here we report that BRCA1 is modified by small ubiquitin-like modifier (SUMO) in response to genotoxic stress, and co-localizes at sites of DNA damage with SUMO1, SUMO2/3 and the SUMO-conjugating enzyme Ubc9. PIAS SUMO E3 ligases co-localize with and modulate SUMO modification of BRCA1, and are required for BRCA1 ubiquitin ligase activity in cells. In vitro SUMO modification of the BRCA1/BARD1 heterodimer greatly increases its ligase activity, identifying it as a SUMO-regulated ubiquitin ligase (SRUbL). Further, PIAS SUMO ligases are required for complete accumulation of double-stranded DNA (dsDNA) damage-repair proteins subsequent to RNF8 accrual, and for proficient double-strand break repair. These data demonstrate that the SUMOylation pathway plays a significant role in mammalian DNA damage response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morris, Joanna R -- Boutell, Chris -- Keppler, Melanie -- Densham, Ruth -- Weekes, Daniel -- Alamshah, Amin -- Butler, Laura -- Galanty, Yaron -- Pangon, Laurent -- Kiuchi, Tai -- Ng, Tony -- Solomon, Ellen -- 10331/Cancer Research UK/United Kingdom -- 6900577/Medical Research Council/United Kingdom -- C8820/A9494/Cancer Research UK/United Kingdom -- G0100152 #56891/Medical Research Council/United Kingdom -- G9600577/Medical Research Council/United Kingdom -- MC_UP_A550_1030/Medical Research Council/United Kingdom -- England -- Nature. 2009 Dec 17;462(7275):886-90. doi: 10.1038/nature08593.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical and Molecular Genetics, King's College London, Guy's Medical School Campus, London SE1 9RT, UK. jo.morris@genetics.kcl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20016594" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; BRCA1 Protein/*metabolism ; COS Cells ; Cell Line ; Cercopithecus aethiops ; DNA Breaks, Double-Stranded ; *DNA Damage ; DNA Repair ; HeLa Cells ; Histones/metabolism ; Humans ; Protein Inhibitors of Activated STAT/metabolism ; Small Ubiquitin-Related Modifier Proteins/*metabolism ; Ubiquitin-Conjugating Enzymes/metabolism ; Ubiquitin-Protein Ligases/metabolism ; Ubiquitination
    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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