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  • 1
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    Sirtuin 2 inhibitors rescue alpha-synuclein-mediated toxicity in models of Parkinson's disease (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-06-26
    Description: The sirtuins are members of the histone deacetylase family of proteins that participate in a variety of cellular functions and play a role in aging. We identified a potent inhibitor of sirtuin 2 (SIRT2) and found that inhibition of SIRT2 rescued alpha-synuclein toxicity and modified inclusion morphology in a cellular model of Parkinson's disease. Genetic inhibition of SIRT2 via small interfering RNA similarly rescued alpha-synuclein toxicity. Furthermore, the inhibitors protected against dopaminergic cell death both in vitro and in a Drosophila model of Parkinson's disease. The results suggest a link between neurodegeneration and aging.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Outeiro, Tiago Fleming -- Kontopoulos, Eirene -- Altmann, Stephen M -- Kufareva, Irina -- Strathearn, Katherine E -- Amore, Allison M -- Volk, Catherine B -- Maxwell, Michele M -- Rochet, Jean-Christophe -- McLean, Pamela J -- Young, Anne B -- Abagyan, Ruben -- Feany, Mel B -- Hyman, Bradley T -- Kazantsev, Aleksey G -- 5P50-NS38372A-06/NS/NINDS NIH HHS/ -- R01-NS049221/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2007 Jul 27;317(5837):516-9. Epub 2007 Jun 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Alzheimer's Research Unit, MGH, Harvard Medical School, CNY 114, 16th Street, Charlestown, MA 02129, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17588900" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Animals ; Animals, Genetically Modified ; Cell Death/drug effects ; Cell Line, Tumor ; Cells, Cultured ; Disease Models, Animal ; Dopamine/physiology ; Dose-Response Relationship, Drug ; Drosophila melanogaster ; Furans/*pharmacology ; Humans ; Models, Molecular ; Neurons/cytology/drug effects ; Parkinson Disease/*drug therapy/metabolism/pathology/*physiopathology ; Protein Conformation ; Quinolines/*pharmacology ; RNA, Small Interfering/genetics ; Rats ; Sirtuin 1 ; Sirtuin 2 ; Sirtuins/*antagonists & inhibitors/chemistry/genetics/*metabolism ; Transfection ; Tubulin/metabolism ; alpha-Synuclein/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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  • 2
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    Yeast reveal a "druggable" Rsp5/Nedd4 network that ameliorates alpha-synuclein toxicity in neurons (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-10-26
    Description: alpha-Synuclein (alpha-syn) is a small lipid-binding protein implicated in several neurodegenerative diseases, including Parkinson's disease, whose pathobiology is conserved from yeast to man. There are no therapies targeting these underlying cellular pathologies, or indeed those of any major neurodegenerative disease. Using unbiased phenotypic screens as an alternative to target-based approaches, we discovered an N-aryl benzimidazole (NAB) that strongly and selectively protected diverse cell types from alpha-syn toxicity. Three chemical genetic screens in wild-type yeast cells established that NAB promoted endosomal transport events dependent on the E3 ubiquitin ligase Rsp5/Nedd4. These same steps were perturbed by alpha-syn itself. Thus, NAB identifies a druggable node in the biology of alpha-syn that can correct multiple aspects of its underlying pathology, including dysfunctional endosomal and endoplasmic reticulum-to-Golgi vesicle trafficking.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3993916/" 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/PMC3993916/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tardiff, Daniel F -- Jui, Nathan T -- Khurana, Vikram -- Tambe, Mitali A -- Thompson, Michelle L -- Chung, Chee Yeun -- Kamadurai, Hari B -- Kim, Hyoung Tae -- Lancaster, Alex K -- Caldwell, Kim A -- Caldwell, Guy A -- Rochet, Jean-Christophe -- Buchwald, Stephen L -- Lindquist, Susan -- 5R01GM069530/GM/NIGMS NIH HHS/ -- F32GM099817/GM/NIGMS NIH HHS/ -- F32NS061419/NS/NINDS NIH HHS/ -- GM58160/GM/NIGMS NIH HHS/ -- K01 AG038546/AG/NIA NIH HHS/ -- R01 GM058160/GM/NIGMS NIH HHS/ -- R15 NS075684/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Nov 22;342(6161):979-83. doi: 10.1126/science.1245321. Epub 2013 Oct 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research (WIBR), Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24158909" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Benzimidazoles/chemistry/*pharmacology ; Caenorhabditis elegans ; Cells, Cultured ; *Cytoprotection ; Drug Evaluation, Preclinical ; Endosomal Sorting Complexes Required for Transport/*genetics ; Gene Regulatory Networks/*drug effects ; Neurodegenerative Diseases/*metabolism ; Neurons/*drug effects/metabolism ; Neuroprotective Agents/*pharmacology ; Parkinson Disease/metabolism ; Rats ; Saccharomyces cerevisiae/drug effects ; Saccharomyces cerevisiae Proteins/*genetics ; Small Molecule Libraries/chemistry/pharmacology ; Ubiquitin-Protein Ligase Complexes/*genetics ; Ubiquitin-Protein Ligases/*genetics ; alpha-Synuclein/*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)
    Location Call Number Expected Availability
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    PAPER CURRENT
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