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  • Articles  (24)
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  • American Association for the Advancement of Science (AAAS)  (24)
  • American Meteorological Society
  • Annual Reviews
  • Elsevier
  • Institute of Physics
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  • 2020-2023
  • 2010-2014  (24)
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  • 1
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    Frequent mutations of chromatin remodeling gene ARID1A in ovarian clear cell carcinoma (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-09-10
    Description: Ovarian clear cell carcinoma (OCCC) is an aggressive human cancer that is generally resistant to therapy. To explore the genetic origin of OCCC, we determined the exomic sequences of eight tumors after immunoaffinity purification of cancer cells. Through comparative analyses of normal cells from the same patients, we identified four genes that were mutated in at least two tumors. PIK3CA, which encodes a subunit of phosphatidylinositol-3 kinase, and KRAS, which encodes a well-known oncoprotein, had previously been implicated in OCCC. The other two mutated genes were previously unknown to be involved in OCCC: PPP2R1A encodes a regulatory subunit of serine/threonine phosphatase 2, and ARID1A encodes adenine-thymine (AT)-rich interactive domain-containing protein 1A, which participates in chromatin remodeling. The nature and pattern of the mutations suggest that PPP2R1A functions as an oncogene and ARID1A as a tumor-suppressor gene. In a total of 42 OCCCs, 7% had mutations in PPP2R1A and 57% had mutations in ARID1A. These results suggest that aberrant chromatin remodeling contributes to the pathogenesis of OCCC.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3076894/" 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/PMC3076894/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, Sian -- Wang, Tian-Li -- Shih, Ie-Ming -- Mao, Tsui-Lien -- Nakayama, Kentaro -- Roden, Richard -- Glas, Ruth -- Slamon, Dennis -- Diaz, Luis A Jr -- Vogelstein, Bert -- Kinzler, Kenneth W -- Velculescu, Victor E -- Papadopoulos, Nickolas -- CA103937/CA/NCI NIH HHS/ -- CA121113/CA/NCI NIH HHS/ -- CA122581/CA/NCI NIH HHS/ -- CA129080/CA/NCI NIH HHS/ -- CA57345/CA/NCI NIH HHS/ -- R01 CA121113/CA/NCI NIH HHS/ -- R01 CA121113-05/CA/NCI NIH HHS/ -- R37 CA057345/CA/NCI NIH HHS/ -- R37 CA057345-20/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Oct 8;330(6001):228-31. doi: 10.1126/science.1196333. Epub 2010 Sep 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ludwig Center for Cancer Genetics and Therapeutics and Howard Hughes Medical Institute, Johns Hopkins Kimmel Cancer Center, Baltimore, MD 21231, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20826764" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma, Clear Cell/*genetics ; Adult ; Cell Line, Tumor ; Chromatin Assembly and Disassembly/*genetics ; Female ; *Genes, Tumor Suppressor ; Genes, ras ; Humans ; Middle Aged ; *Mutation ; Nuclear Proteins/chemistry/*genetics/metabolism ; Oncogenes ; Ovarian Neoplasms/*genetics ; Phosphatidylinositol 3-Kinases/genetics ; Protein Phosphatase 2/*genetics ; Sequence Analysis, DNA ; Transcription Factors/chemistry/*genetics/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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  • 2
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    Frequent mutation of BAP1 in metastasizing uveal melanomas (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-11-06
    Description: Metastasis is a defining feature of malignant tumors and is the most common cause of cancer-related death, yet the genetics of metastasis are poorly understood. We used exome capture coupled with massively parallel sequencing to search for metastasis-related mutations in highly metastatic uveal melanomas of the eye. Inactivating somatic mutations were identified in the gene encoding BRCA1-associated protein 1 (BAP1) on chromosome 3p21.1 in 26 of 31 (84%) metastasizing tumors, including 15 mutations causing premature protein termination and 5 affecting its ubiquitin carboxyl-terminal hydrolase domain. One tumor harbored a frameshift mutation that was germline in origin, thus representing a susceptibility allele. These findings implicate loss of BAP1 in uveal melanoma metastasis and suggest that the BAP1 pathway may be a valuable therapeutic target.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3087380/" 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/PMC3087380/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harbour, J William -- Onken, Michael D -- Roberson, Elisha D O -- Duan, Shenghui -- Cao, Li -- Worley, Lori A -- Council, M Laurin -- Matatall, Katie A -- Helms, Cynthia -- Bowcock, Anne M -- AR007279-31A1/AR/NIAMS NIH HHS/ -- P30 EY02687C/EY/NEI NIH HHS/ -- R01 CA125970/CA/NCI NIH HHS/ -- R01 CA125970-06/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2010 Dec 3;330(6009):1410-3. doi: 10.1126/science.1194472. Epub 2010 Nov 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, MO 63110, USA. harbour@vision.wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21051595" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line, Tumor ; Chromosome Deletion ; Chromosomes, Human, Pair 3/genetics ; Frameshift Mutation ; Germ-Line Mutation ; Humans ; Melanoma/*genetics/*secondary ; *Mutation ; Mutation, Missense ; *Neoplasm Metastasis ; Protein Structure, Tertiary ; RNA Interference ; RNA, Messenger/genetics/metabolism ; RNA, Neoplasm/genetics/metabolism ; Sequence Analysis, DNA ; Tumor Suppressor Proteins/chemistry/*genetics/metabolism ; Ubiquitin Thiolesterase/chemistry/*genetics/metabolism ; Uveal Neoplasms/*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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  • 3
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    A Tumor suppressor complex with GAP activity for the Rag GTPases that signal amino acid sufficiency to mTORC1 (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-06-01
    Description: The mTOR complex 1 (mTORC1) pathway promotes cell growth in response to many cues, including amino acids, which act through the Rag guanosine triphosphatases (GTPases) to promote mTORC1 translocation to the lysosomal surface, its site of activation. Although progress has been made in identifying positive regulators of the Rags, it is unknown if negative factors also exist. Here, we identify GATOR as a complex that interacts with the Rags and is composed of two subcomplexes we call GATOR1 and -2. Inhibition of GATOR1 subunits (DEPDC5, Nprl2, and Nprl3) makes mTORC1 signaling resistant to amino acid deprivation. In contrast, inhibition of GATOR2 subunits (Mios, WDR24, WDR59, Seh1L, and Sec13) suppresses mTORC1 signaling, and epistasis analysis shows that GATOR2 negatively regulates DEPDC5. GATOR1 has GTPase-activating protein (GAP) activity for RagA and RagB, and its components are mutated in human cancer. In cancer cells with inactivating mutations in GATOR1, mTORC1 is hyperactive and insensitive to amino acid starvation, and such cells are hypersensitive to rapamycin, an mTORC1 inhibitor. Thus, we identify a key negative regulator of the Rag GTPases and reveal that, like other mTORC1 regulators, Rag function can be deregulated in cancer.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3728654/" 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/PMC3728654/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bar-Peled, Liron -- Chantranupong, Lynne -- Cherniack, Andrew D -- Chen, Walter W -- Ottina, Kathleen A -- Grabiner, Brian C -- Spear, Eric D -- Carter, Scott L -- Meyerson, Matthew -- Sabatini, David M -- AI47389/AI/NIAID NIH HHS/ -- CA103866/CA/NCI NIH HHS/ -- F31 CA180271/CA/NCI NIH HHS/ -- P30 CA014051/CA/NCI NIH HHS/ -- R01 CA103866/CA/NCI NIH HHS/ -- R01 CA129105/CA/NCI NIH HHS/ -- U24CA143867/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 May 31;340(6136):1100-6. doi: 10.1126/science.1232044.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research and Massachusetts Institute of Technology, Department of Biology, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23723238" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acids/*metabolism ; Carrier Proteins/antagonists & inhibitors/genetics/*metabolism ; Cell Line, Tumor ; GTPase-Activating Proteins ; HEK293 Cells ; Humans ; Lysosomes/*enzymology ; Monomeric GTP-Binding Proteins/*metabolism ; Multiprotein Complexes ; Mutation ; Neoplasms/*enzymology/genetics ; Nuclear Proteins/antagonists & inhibitors/genetics/metabolism ; Proteins/*metabolism ; RNA, Small Interfering/genetics ; TOR Serine-Threonine Kinases ; Tumor Suppressor Proteins/antagonists & inhibitors/genetics/*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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  • 4
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    Signaling kinase AMPK activates stress-promoted transcription via histone H2B phosphorylation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-07-22
    Description: The mammalian adenosine monophosphate-activated protein kinase (AMPK) is a serine-threonine kinase protein complex that is a central regulator of cellular energy homeostasis. However, the mechanisms by which AMPK mediates cellular responses to metabolic stress remain unclear. We found that AMPK activates transcription through direct association with chromatin and phosphorylation of histone H2B at serine 36. AMPK recruitment and H2B Ser36 phosphorylation colocalized within genes activated by AMPK-dependent pathways, both in promoters and in transcribed regions. Ectopic expression of H2B in which Ser36 was substituted by alanine reduced transcription and RNA polymerase II association to AMPK-dependent genes, and lowered cell survival in response to stress. Our results place AMPK-dependent H2B Ser36 phosphorylation in a direct transcriptional and chromatin regulatory pathway leading to cellular adaptation to stress.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3922052/" 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/PMC3922052/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bungard, David -- Fuerth, Benjamin J -- Zeng, Ping-Yao -- Faubert, Brandon -- Maas, Nancy L -- Viollet, Benoit -- Carling, David -- Thompson, Craig B -- Jones, Russell G -- Berger, Shelley L -- CA078831/CA/NCI NIH HHS/ -- CA09171/CA/NCI NIH HHS/ -- CA105463/CA/NCI NIH HHS/ -- MC_U120027537/Medical Research Council/United Kingdom -- MOP-93799/Canadian Institutes of Health Research/Canada -- P01 AG031862/AG/NIA NIH HHS/ -- P01 CA104838/CA/NCI NIH HHS/ -- R01 CA078831/CA/NCI NIH HHS/ -- R01 CA105463/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2010 Sep 3;329(5996):1201-5. doi: 10.1126/science.1191241. Epub 2010 Jul 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Developmental Biology, University of Pennsylvania Medical School, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20647423" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/chemistry/*metabolism ; Adaptation, Physiological ; Amino Acid Motifs ; Amino Acid Substitution ; Animals ; Cell Line ; Cell Line, Tumor ; Cell Survival ; Cells, Cultured ; Chromatin/*metabolism ; Chromatin Immunoprecipitation ; Enzyme Activation ; Gene Expression Regulation ; Histones/chemistry/*metabolism ; Humans ; Mice ; Phosphorylation ; Promoter Regions, Genetic ; Protein-Serine-Threonine Kinases/genetics/metabolism ; Serine/metabolism ; Signal Transduction ; *Stress, Physiological ; *Transcription, Genetic ; Tumor Suppressor Protein p53/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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  • 5
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    Real-time dynamics of RNA polymerase II clustering in live human cells (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-07-06
    Description: Transcription is reported to be spatially compartmentalized in nuclear transcription factories with clusters of RNA polymerase II (Pol II). However, little is known about when these foci assemble or their relative stability. We developed a quantitative single-cell approach to characterize protein spatiotemporal organization, with single-molecule sensitivity in live eukaryotic cells. We observed that Pol II clusters form transiently, with an average lifetime of 5.1 (+/- 0.4) seconds, which refutes the notion that they are statically assembled substructures. Stimuli affecting transcription yielded orders-of-magnitude changes in the dynamics of Pol II clusters, which implies that clustering is regulated and plays a role in the cell's ability to effect rapid response to external signals. Our results suggest that transient crowding of enzymes may aid in rate-limiting steps of gene regulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cisse, Ibrahim I -- Izeddin, Ignacio -- Causse, Sebastien Z -- Boudarene, Lydia -- Senecal, Adrien -- Muresan, Leila -- Dugast-Darzacq, Claire -- Hajj, Bassam -- Dahan, Maxime -- Darzacq, Xavier -- New York, N.Y. -- Science. 2013 Aug 9;341(6146):664-7. doi: 10.1126/science.1239053. Epub 2013 Jul 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Functional Imaging of Transcription, CNRS UMR8197, Ecole Normale Superieure, Institut de Biologie de l'ENS, IBENS, Paris, 75005 France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23828889" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line, Tumor ; Flavonoids/pharmacology ; *Gene Expression Regulation ; Humans ; Piperidines/pharmacology ; RNA Polymerase II/*metabolism ; Single-Cell Analysis/methods ; Time Factors ; Transcription Elongation, Genetic/drug effects ; *Transcription, Genetic
    Print ISSN: 0036-8075
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  • 6
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    A secreted PTEN phosphatase that enters cells to alter signaling and survival (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-06-08
    Description: Phosphatase and tensin homolog on chromosome ten (PTEN) is a tumor suppressor and an antagonist of the phosphoinositide-3 kinase (PI3K) pathway. We identified a 576-amino acid translational variant of PTEN, termed PTEN-Long, that arises from an alternative translation start site 519 base pairs upstream of the ATG initiation sequence, adding 173 N-terminal amino acids to the normal PTEN open reading frame. PTEN-Long is a membrane-permeable lipid phosphatase that is secreted from cells and can enter other cells. As an exogenous agent, PTEN-Long antagonized PI3K signaling and induced tumor cell death in vitro and in vivo. By providing a means to restore a functional tumor-suppressor protein to tumor cells, PTEN-Long may have therapeutic uses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3935617/" 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/PMC3935617/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hopkins, Benjamin D -- Fine, Barry -- Steinbach, Nicole -- Dendy, Meaghan -- Rapp, Zachary -- Shaw, Jacquelyn -- Pappas, Kyrie -- Yu, Jennifer S -- Hodakoski, Cindy -- Mense, Sarah -- Klein, Joshua -- Pegno, Sarah -- Sulis, Maria-Luisa -- Goldstein, Hannah -- Amendolara, Benjamin -- Lei, Liang -- Maurer, Matthew -- Bruce, Jeffrey -- Canoll, Peter -- Hibshoosh, Hanina -- Parsons, Ramon -- 2T32 CA09503/CA/NCI NIH HHS/ -- CA082783/CA/NCI NIH HHS/ -- CA097403/CA/NCI NIH HHS/ -- P01 CA097403/CA/NCI NIH HHS/ -- R01 CA082783/CA/NCI NIH HHS/ -- R01 CA155117/CA/NCI NIH HHS/ -- R01 NS066955/NS/NINDS NIH HHS/ -- R01 NS073610/NS/NINDS NIH HHS/ -- R01NS066955/NS/NINDS NIH HHS/ -- T32 CA009503/CA/NCI NIH HHS/ -- T32 GM008224/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Jul 26;341(6144):399-402. doi: 10.1126/science.1234907. Epub 2013 Jun 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue, New York, NY 10029, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23744781" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line, Tumor ; *Cell Survival ; Embryonic Stem Cells ; Glioblastoma/drug therapy/metabolism/pathology ; HEK293 Cells ; Humans ; Mice ; Mice, Nude ; Molecular Sequence Data ; Mutation ; PTEN Phosphohydrolase/*chemistry/genetics/*metabolism/pharmacology ; Peptide Chain Initiation, Translational ; Phosphatidylinositol 3-Kinase/*metabolism ; Phosphorylation ; Proto-Oncogene Proteins c-akt/metabolism ; RNA, Messenger/genetics/metabolism ; *Signal Transduction/drug effects ; Xenograft Model Antitumor Assays
    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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    Highly recurrent TERT promoter mutations in human melanoma (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-01-26
    Description: Systematic sequencing of human cancer genomes has identified many recurrent mutations in the protein-coding regions of genes but rarely in gene regulatory regions. Here, we describe two independent mutations within the core promoter of telomerase reverse transcriptase (TERT), the gene coding for the catalytic subunit of telomerase, which collectively occur in 50 of 70 (71%) melanomas examined. These mutations generate de novo consensus binding motifs for E-twenty-six (ETS) transcription factors, and in reporter assays, the mutations increased transcriptional activity from the TERT promoter by two- to fourfold. Examination of 150 cancer cell lines derived from diverse tumor types revealed the same mutations in 24 cases (16%), with preliminary evidence of elevated frequency in bladder and hepatocellular cancer cells. Thus, somatic mutations in regulatory regions of the genome may represent an important tumorigenic mechanism.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4423787/" 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/PMC4423787/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, Franklin W -- Hodis, Eran -- Xu, Mary Jue -- Kryukov, Gregory V -- Chin, Lynda -- Garraway, Levi A -- DP2 OD002750/OD/NIH HHS/ -- DP2OD002750/OD/NIH HHS/ -- R33 CA126674/CA/NCI NIH HHS/ -- R33CA126674/CA/NCI NIH HHS/ -- T32 CA009172/CA/NCI NIH HHS/ -- T32 GM007753/GM/NIGMS NIH HHS/ -- T32GM07753/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Feb 22;339(6122):957-9. doi: 10.1126/science.1229259. Epub 2013 Jan 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23348506" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Carcinoma, Hepatocellular/genetics ; Cell Line, Tumor ; Cell Transformation, Neoplastic ; *Gene Expression Regulation, Neoplastic ; Humans ; Liver Neoplasms/genetics ; Melanoma/*genetics ; *Mutation ; *Promoter Regions, Genetic ; Proto-Oncogene Proteins c-ets/metabolism ; Telomerase/chemistry/*genetics/metabolism ; Transcription, Genetic
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Lenalidomide causes selective degradation of IKZF1 and IKZF3 in multiple myeloma cells (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-12-03
    Description: Lenalidomide is a drug with clinical efficacy in multiple myeloma and other B cell neoplasms, but its mechanism of action is unknown. Using quantitative proteomics, we found that lenalidomide causes selective ubiquitination and degradation of two lymphoid transcription factors, IKZF1 and IKZF3, by the CRBN-CRL4 ubiquitin ligase. IKZF1 and IKZF3 are essential transcription factors in multiple myeloma. A single amino acid substitution of IKZF3 conferred resistance to lenalidomide-induced degradation and rescued lenalidomide-induced inhibition of cell growth. Similarly, we found that lenalidomide-induced interleukin-2 production in T cells is due to depletion of IKZF1 and IKZF3. These findings reveal a previously unknown mechanism of action for a therapeutic agent: alteration of the activity of an E3 ubiquitin ligase, leading to selective degradation of specific targets.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4077049/" 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/PMC4077049/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kronke, Jan -- Udeshi, Namrata D -- Narla, Anupama -- Grauman, Peter -- Hurst, Slater N -- McConkey, Marie -- Svinkina, Tanya -- Heckl, Dirk -- Comer, Eamon -- Li, Xiaoyu -- Ciarlo, Christie -- Hartman, Emily -- Munshi, Nikhil -- Schenone, Monica -- Schreiber, Stuart L -- Carr, Steven A -- Ebert, Benjamin L -- P01 CA078378/CA/NCI NIH HHS/ -- P01 CA108631/CA/NCI NIH HHS/ -- P01 CA155258/CA/NCI NIH HHS/ -- P50 CA100707/CA/NCI NIH HHS/ -- R01 HL082945/HL/NHLBI NIH HHS/ -- R01HL082945/HL/NHLBI NIH HHS/ -- RL1- HG004671/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2014 Jan 17;343(6168):301-5. doi: 10.1126/science.1244851. Epub 2013 Nov 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉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/24292625" target="_blank"〉PubMed〈/a〉
    Keywords: Antineoplastic Agents/*pharmacology ; Cell Line, Tumor ; HEK293 Cells ; Humans ; Ikaros Transcription Factor/genetics/*metabolism ; Interleukin-2/biosynthesis ; Multiple Myeloma/*metabolism ; Proteolysis ; T-Lymphocytes/drug effects/metabolism ; Thalidomide/*analogs & derivatives/pharmacology ; Ubiquitination
    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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  • 9
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    Reprogramming of T cells to natural killer-like cells upon Bcl11b deletion (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-06-12
    Description: T cells develop in the thymus and are critical for adaptive immunity. Natural killer (NK) lymphocytes constitute an essential component of the innate immune system in tumor surveillance, reproduction, and defense against microbes and viruses. Here, we show that the transcription factor Bcl11b was expressed in all T cell compartments and was indispensable for T lineage development. When Bcl11b was deleted, T cells from all developmental stages acquired NK cell properties and concomitantly lost or decreased T cell-associated gene expression. These induced T-to-natural killer (ITNK) cells, which were morphologically and genetically similar to conventional NK cells, killed tumor cells in vitro, and effectively prevented tumor metastasis in vivo. Therefore, ITNKs may represent a new cell source for cell-based therapies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3628452/" 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/PMC3628452/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Peng -- Burke, Shannon -- Wang, Juexuan -- Chen, Xiongfeng -- Ortiz, Mariaestela -- Lee, Song-Choon -- Lu, Dong -- Campos, Lia -- Goulding, David -- Ng, Bee Ling -- Dougan, Gordon -- Huntly, Brian -- Gottgens, Bertie -- Jenkins, Nancy A -- Copeland, Neal G -- Colucci, Francesco -- Liu, Pentao -- 076962/Wellcome Trust/United Kingdom -- 077186/Wellcome Trust/United Kingdom -- G0501150/Medical Research Council/United Kingdom -- G0800784/Medical Research Council/United Kingdom -- G116/187/Medical Research Council/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2010 Jul 2;329(5987):85-9. doi: 10.1126/science.1188063. Epub 2010 Jun 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1HH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20538915" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line, Tumor ; *Cell Lineage ; Cells, Cultured ; Coculture Techniques ; Cytotoxicity, Immunologic ; Gene Deletion ; Gene Expression Profiling ; Gene Expression Regulation, Developmental ; Gene Knock-In Techniques ; Genes, T-Cell Receptor beta ; Killer Cells, Natural/cytology/immunology/*physiology ; *Lymphopoiesis/genetics ; Melanoma, Experimental/immunology/therapy ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Oligonucleotide Array Sequence Analysis ; Precursor Cells, T-Lymphoid/cytology/physiology ; Receptors, Antigen, T-Cell, alpha-beta/metabolism ; Repressor Proteins/*genetics/*metabolism ; Signal Transduction ; Stromal Cells/cytology/physiology ; T-Lymphocytes/cytology/immunology/*physiology/transplantation ; Tamoxifen/analogs & derivatives/pharmacology ; Tumor Suppressor Proteins/*genetics/*metabolism
    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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  • 10
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    Tight coordination of protein translation and HSF1 activation supports the anabolic malignant state (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-07-23
    Description: The ribosome is centrally situated to sense metabolic states, but whether its activity, in turn, coherently rewires transcriptional responses is unknown. Here, through integrated chemical-genetic analyses, we found that a dominant transcriptional effect of blocking protein translation in cancer cells was inactivation of heat shock factor 1 (HSF1), a multifaceted transcriptional regulator of the heat-shock response and many other cellular processes essential for anabolic metabolism, cellular proliferation, and tumorigenesis. These analyses linked translational flux to the regulation of HSF1 transcriptional activity and to the modulation of energy metabolism. Targeting this link with translation initiation inhibitors such as rocaglates deprived cancer cells of their energy and chaperone armamentarium and selectively impaired the proliferation of both malignant and premalignant cells with early-stage oncogenic lesions.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3959726/" 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/PMC3959726/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Santagata, Sandro -- Mendillo, Marc L -- Tang, Yun-chi -- Subramanian, Aravind -- Perley, Casey C -- Roche, Stephane P -- Wong, Bang -- Narayan, Rajiv -- Kwon, Hyoungtae -- Koeva, Martina -- Amon, Angelika -- Golub, Todd R -- Porco, John A Jr -- Whitesell, Luke -- Lindquist, Susan -- 5U54HG006093/HG/NHGRI NIH HHS/ -- K08 NS064168/NS/NINDS NIH HHS/ -- K08NS064168/NS/NINDS NIH HHS/ -- R01 CA175744/CA/NCI NIH HHS/ -- R01 CA175744-01/CA/NCI NIH HHS/ -- R01 GM073855/GM/NIGMS NIH HHS/ -- R03 DA027713/DA/NIDA NIH HHS/ -- R03 DA027713-01/DA/NIDA NIH HHS/ -- R03 MH086465-01/MH/NIMH NIH HHS/ -- U54 HG006093/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Jul 19;341(6143):1238303. doi: 10.1126/science.1238303.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA 02215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23869022" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antineoplastic Agents/chemistry/isolation & purification/pharmacology ; Benzofurans/pharmacology ; Cell Line, Tumor ; Cell Proliferation ; Cell Transformation, Neoplastic/drug effects/metabolism/pathology ; DNA-Binding Proteins/antagonists & inhibitors/*biosynthesis ; Energy Metabolism/drug effects ; Gene Expression Regulation, Neoplastic ; High-Throughput Screening Assays ; Humans ; Mice ; NIH 3T3 Cells ; Neoplasm Transplantation ; Neoplasms/genetics/*metabolism/*pathology ; Protein Biosynthesis/drug effects/genetics/*physiology ; Ribosomes/drug effects/*metabolism ; Transcription Factors/antagonists & inhibitors/*biosynthesis
    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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