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  • 1
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    Regulation of area identity in the mammalian neocortex by Emx2 and Pax6 (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-04-15
    Description: The contribution of extrinsic and genetic mechanisms in determining areas of the mammalian neocortex has been a contested issue. This study analyzes the roles of the regulatory genes Emx2 and Pax6, which are expressed in opposing gradients in the neocortical ventricular zone, in specifying areas. Changes in the patterning of molecular markers and area-specific connections between the cortex and thalamus suggest that arealization of the neocortex is disproportionately altered in Emx2 and Pax6 mutant mice in opposing manners predicted from their countergradients of expression: rostral areas expand and caudal areas contract in Emx2 mutants, whereas the opposite effect is seen in Pax6 mutants. These findings suggest that Emx2 and Pax6 cooperate to regulate arealization of the neocortex and to confer area identity to cortical cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bishop, K M -- Goudreau, G -- O'Leary, D D -- NS31558/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2000 Apr 14;288(5464):344-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Neurobiology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10764649" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain Mapping ; Cadherins/biosynthesis/genetics ; DNA-Binding Proteins/*genetics/physiology ; Eye Proteins ; *Gene Expression ; Gene Expression Regulation, Developmental ; *Genes, Homeobox ; *Genes, Regulator ; Homeodomain Proteins/*genetics/physiology ; Mice ; Mice, Inbred C57BL ; Mice, Inbred DBA ; Mice, Mutant Strains ; Morphogenesis ; Neocortex/*embryology/metabolism ; Neural Pathways ; Occipital Lobe/embryology/metabolism ; Paired Box Transcription Factors ; Repressor Proteins ; Somatosensory Cortex/embryology/metabolism ; Thalamus/embryology ; Transcription Factors ; Visual Cortex/embryology/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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  • 2
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    Enhanced CpG mutability and tumorigenesis in MBD4-deficient mice (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-07-20
    Description: The mammalian protein MBD4 contains a methyl-CpG binding domain and can enzymatically remove thymine (T) or uracil (U) from a mismatched CpG site in vitro. These properties suggest that MBD4 might function in vivo to minimize the mutability of 5-methylcytosine by removing its deamination product from DNA. We tested this hypothesis by analyzing Mbd4-/- mice and found that the frequency of of C --〉 T transitions at CpG sites was increased by a factor of three. On a cancer-susceptible Apc(Min/+) background, Mbd4-/- mice showed accelerated tumor formation with CpG --〉 TpG mutations in the Apc gene. Thus MBD4 suppresses CpG mutability and tumorigenesis in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Millar, Catherine B -- Guy, Jacky -- Sansom, Owen J -- Selfridge, Jim -- MacDougall, Eilidh -- Hendrich, Brian -- Keightley, Peter D -- Bishop, Stefan M -- Clarke, Alan R -- Bird, Adrian -- New York, N.Y. -- Science. 2002 Jul 19;297(5580):403-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Centre for Cell Biology, The King's Buildings, Edinburgh University, Edinburgh EH9 3JR, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12130785" target="_blank"〉PubMed〈/a〉
    Keywords: 5-Methylcytosine ; Alleles ; Amino Acid Sequence ; Animals ; Base Pair Mismatch ; Cytosine/*analogs & derivatives/metabolism ; DNA Methylation ; DNA Repair ; Deamination ; Dinucleoside Phosphates/*genetics ; Endodeoxyribonucleases/*genetics/*physiology ; Female ; Gene Targeting ; Genes, APC ; Genetic Predisposition to Disease ; Intestinal Neoplasms/etiology/*genetics ; Intestine, Large ; Loss of Heterozygosity ; Male ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; *Point Mutation ; Suppression, 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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  • 3
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    Sustained loss of a neoplastic phenotype by brief inactivation of MYC (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-07-06
    Description: Pharmacological inactivation of oncogenes is being investigated as a possible therapeutic strategy for cancer. One potential drawback is that cessation of such therapy may allow reactivation of the oncogene and tumor regrowth. We used a conditional transgenic mouse model for MYC-induced tumorigenesis to demonstrate that brief inactivation of MYC results in the sustained regression of tumors and the differentiation of osteogenic sarcoma cells into mature osteocytes. Subsequent reactivation of MYC did not restore the cells' malignant properties but instead induced apoptosis. Thus, brief MYC inactivation appears to cause epigenetic changes in tumor cells that render them insensitive to MYC-induced tumorigenesis. These results raise the possibility that transient inactivation of MYC may be an effective therapy for certain cancers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jain, Meenakshi -- Arvanitis, Constadina -- Chu, Kenneth -- Dewey, William -- Leonhardt, Edith -- Trinh, Maxine -- Sundberg, Christopher D -- Bishop, J Michael -- Felsher, Dean W -- K08-CA75967-01/CA/NCI NIH HHS/ -- R01-CA85610/CA/NCI NIH HHS/ -- R01-CA89305-01/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2002 Jul 5;297(5578):102-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Oncology, Departments of Medicine and Pathology, Stanford University, Stanford, CA 94305-5151, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12098700" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antineoplastic Agents/administration & dosage/therapeutic use ; Apoptosis ; Cell Differentiation ; Cell Division ; Doxycycline/pharmacology ; Gene Expression/drug effects ; *Gene Silencing ; *Genes, myc ; Mice ; Mice, Transgenic ; Neoplasm Transplantation ; Osteocytes/cytology ; Osteosarcoma/drug therapy/*genetics/*pathology ; Phenotype ; Transgenes ; Tumor Cells, Cultured
    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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    Cancer: what should be done? (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bishop, J M -- New York, N.Y. -- Science. 1997 Nov 7;278(5340):995.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9381206" target="_blank"〉PubMed〈/a〉
    Keywords: Diet ; Environmental Pollution/adverse effects ; Helicobacter Infections/complications ; Helicobacter pylori ; Humans ; Neoplasms/*etiology/*prevention & control ; Smoking ; Virus Diseases/complications
    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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  • 5
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    The search for an amyloid solution (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-11-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robinson, Stephen R -- Bishop, Glenda M -- New York, N.Y. -- Science. 2002 Nov 1;298(5595):962-4; author reply 962-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12416505" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*etiology/metabolism/pathology/therapy ; Amyloid beta-Peptides/chemistry/*metabolism ; Brain/*metabolism ; Down Syndrome/metabolism ; Humans ; Nerve Degeneration ; Peptide Fragments/chemistry/*metabolism ; Plaque, Amyloid/pathology ; Solubility
    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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    Re-aim blame for NIH's hard times (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-04-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bishop, J Michael -- Varmus, Harold -- New York, N.Y. -- Science. 2006 Apr 28;312(5773):499.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16645053" target="_blank"〉PubMed〈/a〉
    Keywords: Biomedical Research/economics ; Budgets ; National Institutes of Health (U.S.)/*economics/organization & administration ; Politics ; Research Support as Topic ; United States
    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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  • 7
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    Through the glass lightly (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-03-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bishop, J M -- New York, N.Y. -- Science. 1995 Mar 17;267(5204):1617.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17808172" target="_blank"〉PubMed〈/a〉
    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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    Through the glass lightly (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-03-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bishop, J M -- New York, N.Y. -- Science. 1995 Mar 17;267(5204):1613.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17808144" target="_blank"〉PubMed〈/a〉
    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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  • 9
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    Science and the new administration (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-01-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bishop, J M -- Kirschner, M -- Varmus, H -- New York, N.Y. -- Science. 1993 Jan 22;259(5094):444-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Medicine, University of California, San Francisco.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8424162" target="_blank"〉PubMed〈/a〉
    Keywords: Government Agencies ; National Institutes of Health (U.S.) ; *Politics ; *Research ; Research Support as Topic ; United States
    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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  • 10
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    Predisposition to neoplastic transformation caused by gene replacement of H-ras1 (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-06-04
    Description: Homologous recombination was used to introduce a nominally transforming mutation into an endogenous H-ras1 gene in Rat1 fibroblasts. Although both the mutant and the remaining normal allele were expressed equally, the heterozygous cells were not neoplastically transformed. Instead, spontaneously transformed cells arose from the heterozygotes at a low frequency, and the majority of these cells had amplified the mutant allele. Thus, the activated H-ras1 allele was not by itself dominant over the normal allele but predisposed cells to transformation by independent events, such as amplification of the mutant allele.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Finney, R E -- Bishop, J M -- CA 44338/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1993 Jun 4;260(5113):1524-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉George Williams Hooper Foundation, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8502998" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Base Sequence ; Cell Division/genetics ; Cell Line ; Cell Line, Transformed ; Cell Transformation, Neoplastic/*genetics ; Genes, ras/*genetics ; Mice ; Mice, Nude ; Molecular Sequence Data ; Neoplasm Transplantation ; Point Mutation ; Rats ; Recombination, Genetic
    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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