rdf:type |
|
lifeskim:mentions |
umls-concept:C0010837,
umls-concept:C0015283,
umls-concept:C0015576,
umls-concept:C0020746,
umls-concept:C0024348,
umls-concept:C0030940,
umls-concept:C0039195,
umls-concept:C0221284,
umls-concept:C0280697,
umls-concept:C0332291,
umls-concept:C1366479
|
pubmed:issue |
2
|
pubmed:dateCreated |
1997-3-20
|
pubmed:abstractText |
Activation of ICE/Ced-3 family proteases (caspases) has been proposed to mediate both the granule exocytosis and Fas-Fas ligand pathways of rapid target cell death by cytotoxic T lymphocytes. In agreement with this model, two peptide fluoromethyl ketone caspase inhibitors and baculovirus p35 blocked apoptotic nuclear damage and target cell lysis by the CTL-mediated Fas-Fas ligand pathway. The peptide caspase inhibitors also blocked drug-induced apoptotic cell death in tumor cells. In contrast, the caspase inhibitors blocked CTL granule exocytosis-induced target apoptotic nuclear damage, but did not inhibit target lysis. These results are consistent with recent demonstrations that granzyme B can activate caspases leading to apoptotic nuclear damage, but show that target cell lysis by CTL granule exocytosis occurs by a caspase-independent pathway.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Feb
|
pubmed:issn |
1074-7613
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
6
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
209-15
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:9047242-Animals,
pubmed-meshheading:9047242-Caenorhabditis elegans Proteins,
pubmed-meshheading:9047242-Caspase 1,
pubmed-meshheading:9047242-Caspases,
pubmed-meshheading:9047242-Cysteine Endopeptidases,
pubmed-meshheading:9047242-Cytoplasmic Granules,
pubmed-meshheading:9047242-Cytotoxicity, Immunologic,
pubmed-meshheading:9047242-Exocytosis,
pubmed-meshheading:9047242-Helminth Proteins,
pubmed-meshheading:9047242-Humans,
pubmed-meshheading:9047242-Jurkat Cells,
pubmed-meshheading:9047242-Mice,
pubmed-meshheading:9047242-Mice, Inbred BALB C,
pubmed-meshheading:9047242-Mice, Inbred C57BL,
pubmed-meshheading:9047242-T-Lymphocytes, Cytotoxic
|
pubmed:year |
1997
|
pubmed:articleTitle |
Target cell lysis by CTL granule exocytosis is independent of ICE/Ced-3 family proteases.
|
pubmed:affiliation |
Experimental Immunology Branch, National Cancer Institute, Bethesda, Maryland 20892, USA.
|
pubmed:publicationType |
Journal Article
|