rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
3
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pubmed:dateCreated |
1998-8-25
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pubmed:abstractText |
Caspases are essential components of the mammalian cell death machinery. Here we test the hypothesis that Caspase 9 (Casp9) is a critical upstream activator of caspases through gene targeting in mice. The majority of Casp9 knockout mice die perinatally with a markedly enlarged and malformed cerebrum caused by reduced apoptosis during brain development. Casp9 deletion prevents activation of Casp3 in embryonic brains in vivo, and Casp9-deficient thymocytes show resistance to a subset of apoptotic stimuli, including absence of Casp3-like cleavage and delayed DNA fragmentation. Moreover, the cytochrome c-mediated cleavage of Casp3 is absent in the cytosolic extracts of Casp9-deficient cells but is restored after addition of in vitro-translated Casp9. Together, these results indicate that Casp9 is a critical upstream activator of the caspase cascade in vivo.
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pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/CASP3 protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/CASP9 protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/Casp3 protein, mouse,
http://linkedlifedata.com/resource/pubmed/chemical/Casp9 protein, mouse,
http://linkedlifedata.com/resource/pubmed/chemical/Caspase 3,
http://linkedlifedata.com/resource/pubmed/chemical/Caspase 9,
http://linkedlifedata.com/resource/pubmed/chemical/Caspases,
http://linkedlifedata.com/resource/pubmed/chemical/Cysteine Endopeptidases,
http://linkedlifedata.com/resource/pubmed/chemical/Cytochrome c Group
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
|
pubmed:issn |
0092-8674
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:day |
7
|
pubmed:volume |
94
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
325-37
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9708735-Animals,
pubmed-meshheading:9708735-Apoptosis,
pubmed-meshheading:9708735-Brain,
pubmed-meshheading:9708735-Caspase 3,
pubmed-meshheading:9708735-Caspase 9,
pubmed-meshheading:9708735-Caspases,
pubmed-meshheading:9708735-Cysteine Endopeptidases,
pubmed-meshheading:9708735-Cytochrome c Group,
pubmed-meshheading:9708735-Enzyme Activation,
pubmed-meshheading:9708735-Gene Expression Regulation, Developmental,
pubmed-meshheading:9708735-Humans,
pubmed-meshheading:9708735-Hydrolysis,
pubmed-meshheading:9708735-Mice,
pubmed-meshheading:9708735-Mice, Knockout,
pubmed-meshheading:9708735-Sequence Deletion,
pubmed-meshheading:9708735-T-Lymphocytes,
pubmed-meshheading:9708735-Thymus Gland
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pubmed:year |
1998
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pubmed:articleTitle |
Reduced apoptosis and cytochrome c-mediated caspase activation in mice lacking caspase 9.
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pubmed:affiliation |
Vertex Pharmaceuticals Incorporated, Cambridge, Massachusetts 02139, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|