Abstract:
:Transferrin (Tf), an iron-binding protein, was investigated in the cultured human fibroblast which is a major cell type in connective tissues. Tf is a major iron-transporting protein and has an important role in iron metabolism. Using two-dimensional gel electrophoresis, we demonstrated the eight subtypes of Tf produced by cultured normal human fibroblasts and their down-regulation after the immortalization of human cells, an essential early step of in vitro transformation. However, the amount of Tf mRNA in the immortalized cells was equal to that in the normal human fibroblasts, suggesting that the down-regulation occurred at the posttranscriptional level. The amount of Tf receptor increased in the immortalized cells in spite of a decrease in the amount of intracellular Tf. Interestingly the produced Tf associated with microtubules. These findings suggest a novel aspect of Tf characteristics in human fibroblasts.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Kondo T,Sakaguchi M,Namba Mdoi
10.1006/excr.1998.4080subject
Has Abstractpub_date
1998-07-10 00:00:00pages
38-44issue
1eissn
0014-4827issn
1090-2422pii
S0014-4827(98)94080-0journal_volume
242pub_type
杂志文章abstract::The segregation of the chick-specific HPRT gene was studied in three Chinese hamster-chick red blood cell hybrid lines. The three lines showed individual segregation kinetics, the segregation taking place in an exponential-like fashion. Bromodeoxyuridine becomes incorporated into the nuclear DNA and increases the spon...
journal_title:Experimental cell research
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journal_title:Experimental cell research
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journal_title:Experimental cell research
pub_type: 杂志文章
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journal_title:Experimental cell research
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journal_title:Experimental cell research
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Experimental cell research
pub_type: 杂志文章
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更新日期:2008-04-01 00:00:00
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更新日期:2018-05-15 00:00:00
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pub_type: 杂志文章
doi:10.1016/j.yexcr.2016.08.010
更新日期:2016-09-10 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章
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更新日期:2020-03-15 00:00:00
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pub_type: 杂志文章
doi:10.1016/0014-4827(91)90351-t
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journal_title:Experimental cell research
pub_type: 杂志文章,评审
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2005.04.012
更新日期:2005-08-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2020-04-15 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章
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更新日期:2016-06-10 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2005.01.002
更新日期:2005-05-01 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1998.4064
更新日期:1998-06-15 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2011.06.001
更新日期:2011-09-10 00:00:00
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journal_title:Experimental cell research
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更新日期:2019-06-01 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章
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更新日期:1999-07-10 00:00:00
abstract::The enzyme activity hydrolysing diadenosine 5,5'-P1, P4-tetraphosphate (AP4A) was demonstrated in the embryonic extract of sea urchin. The enzyme activity was preferentially inhibited by ZnCl2 and by high concentrations of isobutylmethylxanthine, indicating that two types of the enzyme, (AP4A) hydrolase and non-specif...
journal_title:Experimental cell research
pub_type: 杂志文章
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