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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
|
pubmed:dateCreated |
1993-7-1
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pubmed:abstractText |
The 48-Kd cell-surface protein APO-1 is a new member of the nerve growth factor (NGF)/tumor necrosis factor (TNF) receptor superfamily. APO-1 is expressed on various cells, including activated T and B cells and some lymphoid and nonlymphoid cell lines. Triggering of APO-1 by the monoclonal antibody anti-APO-1 induces programmed cell death (apoptosis) in APO-1-expressing cells. APO-1 is also present on T-cell lines derived from patients with adult T-cell leukemia (ATL). Therefore, we investigated APO-1 expression and APO-1-mediated induction of apoptosis ex vivo in cells from patients with ATL. Fresh leukemic cells from nine patients with ATL were assayed for APO-1 expression by two-color immunofluorescence. The leukemic cells from all patients strongly expressed APO-1. Incubation of ATL cells with anti-APO-1 in vitro inhibited spontaneous and cytokine-mediated DNA synthesis. Furthermore, DNA isolated from cells treated with anti-APO-1 exhibited polynucleosomal DNA fragmentation (DNA ladder) characteristic for apoptotic cell death. The analysis of APO-1-mediated apoptosis may represent a new approach to the study of growth control in lymphoid malignancies. In addition, induction of apoptosis by administration of anti-APO-1 may represent a new therapeutic approach for aggressive T-cell malignancies such as ATL.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jun
|
pubmed:issn |
0006-4971
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
1
|
pubmed:volume |
81
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
2972-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7684622-Antigens, CD95,
pubmed-meshheading:7684622-Antigens, Surface,
pubmed-meshheading:7684622-Apoptosis,
pubmed-meshheading:7684622-Cell Division,
pubmed-meshheading:7684622-Cells, Cultured,
pubmed-meshheading:7684622-DNA Damage,
pubmed-meshheading:7684622-Dose-Response Relationship, Immunologic,
pubmed-meshheading:7684622-Flow Cytometry,
pubmed-meshheading:7684622-Humans,
pubmed-meshheading:7684622-Immunologic Techniques,
pubmed-meshheading:7684622-Leukemia, T-Cell,
pubmed-meshheading:7684622-Receptors, Interleukin-2,
pubmed-meshheading:7684622-Time Factors
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pubmed:year |
1993
|
pubmed:articleTitle |
APO-1-induced apoptosis of leukemia cells from patients with adult T-cell leukemia.
|
pubmed:affiliation |
Oncology/Immunology Section, University Children's Hospital, Heidelberg, Germany.
|
pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
|