rdf:type |
|
lifeskim:mentions |
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pubmed:issue |
6
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pubmed:dateCreated |
2007-9-5
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pubmed:abstractText |
The life and death of T cells is controlled to a large extent by the relative amounts of Bcl-2-related proteins they contain. The antiapoptotic protein Bcl-2 and the proapoptotic protein Bim are particularly important in this process with the amount of Bcl-2 per cell dropping by about one-half when T cells prepare to die. In this study we show that Bcl-2 and Bim each control the expression of the other. Absence of Bim leads to a drop in the amount of intracellular Bcl-2 protein, while having no effect on the amounts of mRNA for Bcl-2. Conversely, high amounts of Bcl-2 per cell allow high amounts of Bim, although in this case the effect involves increases in Bim mRNA. These mutual effects occur even if Bcl-2 is induced acutely. Thus these two proteins control the expression of the other, at either the protein or mRNA level.
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pubmed:grant |
|
pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
AIM
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pubmed:chemical |
|
pubmed:status |
MEDLINE
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pubmed:month |
Sep
|
pubmed:issn |
0022-1767
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pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
15
|
pubmed:volume |
179
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
3417-24
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pubmed:dateRevised |
2007-12-3
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pubmed:meshHeading |
pubmed-meshheading:17785775-Animals,
pubmed-meshheading:17785775-Apoptosis Regulatory Proteins,
pubmed-meshheading:17785775-Cell Differentiation,
pubmed-meshheading:17785775-Cells, Cultured,
pubmed-meshheading:17785775-Gene Expression Regulation,
pubmed-meshheading:17785775-Humans,
pubmed-meshheading:17785775-Membrane Proteins,
pubmed-meshheading:17785775-Mice,
pubmed-meshheading:17785775-Mice, Inbred C57BL,
pubmed-meshheading:17785775-Mice, Knockout,
pubmed-meshheading:17785775-Mice, Transgenic,
pubmed-meshheading:17785775-Proto-Oncogene Proteins,
pubmed-meshheading:17785775-Proto-Oncogene Proteins c-bcl-2,
pubmed-meshheading:17785775-RNA, Messenger,
pubmed-meshheading:17785775-T-Lymphocytes,
pubmed-meshheading:17785775-Thymus Gland
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pubmed:year |
2007
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pubmed:articleTitle |
Bim and Bcl-2 mutually affect the expression of the other in T cells.
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pubmed:affiliation |
Integrated Department of Immunology, University of Colorado Health Sciences Center, Denver, CO 80262, USA.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural
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