Abstract:
:Multidrug-resistant cells are characterized by the presence of P-glycoprotein on the plasma membrane, which binds and probably transports antitumor agents outside the cells. P-glycoprotein is also present in various normal tissues such as the adrenal gland. To investigate the physiological function of P-glycoprotein, we examined possible endogenous materials which inhibit the binding of vincristine to the resistant cell membrane. The binding was inhibited by steroid hormones, most efficiently by progesterone. Progesterone also reduced the photoaffinity labeling of P-glycoprotein by a photoactive analogue of vindesine. These results suggest that P-glycoprotein in the adrenal gland could have a role in the secretion of steroid hormones.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Naito M,Yusa K,Tsuruo Tdoi
10.1016/0006-291x(89)92830-1subject
Has Abstractpub_date
1989-02-15 00:00:00pages
1066-71issue
3eissn
0006-291Xissn
1090-2104pii
0006-291X(89)92830-1journal_volume
158pub_type
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(89)92013-5
更新日期:1989-07-14 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2002.6564
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2000.3285
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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更新日期:2009-01-16 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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更新日期:1993-09-30 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2004.10.004
更新日期:2004-12-03 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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更新日期:2016-04-22 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2000.3995
更新日期:2000-12-29 00:00:00