Abstract:
:We have studied the ability of plasmids encoding a normal human myc protein to stimulate growth of primary rat embryo fibroblasts. We measured growth stimulation by the number of G418-resistant colonies obtained after co-transfection with plasmid pSV2neo and by the percentage of these colonies that grew in long-term culture (immortalization). Using a normal human myc gene, we detected a weak growth stimulation at the colony formation stage and a low frequency of immortalization. Replacement of the myc promoter by a heterologous promoter (mouse metallothionein I promoter) and deletion of the first non-coding exon led to a more efficient growth stimulation by both criteria. Thus, disregulation of c-myc is essential for an altered pattern of growth. Using zinc, a metallothionein inducer, we observed a slight increase in the growth rate of some transfectants, which can be measured by thymidine incorporation. However, the relative inefficiency of immortalization we observed suggests that either a high level of myc expression or participation of other genes is required for establishment in culture. Under our experimental conditions, we could not detect a transforming activity for the human myc gene and none of our myc-containing cell lines was tumorigenic in nude mice.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Nicolaiew N,Dautry Fdoi
10.1016/0014-4827(86)90482-9subject
Has Abstractpub_date
1986-10-01 00:00:00pages
357-69issue
2eissn
0014-4827issn
1090-2422pii
0014-4827(86)90482-9journal_volume
166pub_type
杂志文章abstract::Growth factors and cytokines initiate multiple signal transduction pathways that lead to cell survival, cell cycle progression or differentiation. A common feature of these pathways is increased cellular metabolism and glucose uptake. Furthermore, the energy requirements of many cancers and transformed cell lines are ...
journal_title:Experimental cell research
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doi:10.1016/j.yexcr.2003.10.027
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abstract::An adenocarcinoma cell line which has the ability to arrest in G0 phase under exhausted culture conditions was established. Using the cell line, we investigated the expression of cell cycle-associated proteins including cdc2, cdk2, cyclin A, cyclin Dl, and Rb during entry into or withdrawal from the cell cycle. MAP ki...
journal_title:Experimental cell research
pub_type: 杂志文章
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abstract::The expression level of DNA polymerase beta was determined in various mouse tissues. Northern blot hybridization analysis using rat cDNA as a probe revealed that the mRNA of about 1.5 kb for this enzyme is present in all kinds of tissues examined, but its content widely varies among tissues; the most abundant DNA poly...
journal_title:Experimental cell research
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abstract::The glomerular capillary endothelium is highly specialized to support the selective filtration of massive volumes of plasma. Filtration is driven by Starling forces acting across the glomerular capillary wall, and depends on its large surface area and extremely high water permeability. Glomerular endothelial cells are...
journal_title:Experimental cell research
pub_type: 杂志文章,评审
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abstract::The laminins consist of at least 11 polypeptides (5 alpha-chains, 3 beta-chains, and 3 gamma-chains) specific to basement membranes. Here we investigate the biological activity associated with the G domain of the newly identified laminin alpha5-chain using 113 overlapping synthetic peptides (positions 2679-3635). Usin...
journal_title:Experimental cell research
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abstract::The bone morphogenetic proteins (BMPs) are potent osteoinductive factors that accelerate osteoblast maturation, accompanied by increased cell-substrate adhesion. BMP-2 treatment of osteoblastic cells increases phosphorylation of the cytoplasmic BMP-2 signaling molecules, Smad1 and Smad5. We have previously reported th...
journal_title:Experimental cell research
pub_type: 杂志文章
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.2002.5510
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abstract::Products of the Neuregulin-1 (Nrg-1) gene, along with the ErbB family of receptor tyrosine kinases through which Nrg-1 ligands signal, play a critical role during cardiovascular development. Through studies of genetically manipulated mice, as well as studies in cells isolated from adult hearts, it appears that Nrg-1/E...
journal_title:Experimental cell research
pub_type: 杂志文章,评审
doi:10.1016/j.yexcr.2008.08.015
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journal_title:Experimental cell research
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(83)90128-3
更新日期:1983-07-01 00:00:00
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journal_title:Experimental cell research
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2010.03.010
更新日期:2010-05-15 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(84)90649-9
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(86)90447-7
更新日期:1986-01-01 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1998.4311
更新日期:1999-02-25 00:00:00
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journal_title:Experimental cell research
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pub_type: 评论,杂志文章
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journal_title:Experimental cell research
pub_type: 杂志文章
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1996.0354
更新日期:1996-11-25 00:00:00
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journal_title:Experimental cell research
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journal_title:Experimental cell research
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更新日期:2017-12-15 00:00:00
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journal_title:Experimental cell research
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2009.04.021
更新日期:2009-07-15 00:00:00
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pub_type: 杂志文章
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