Transcriptional regulation of mouse L-selectin.
Transcriptional regulation of mouse L-selectin.
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DOI:
10.1016/j.bbagrm.2008.10.004
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发表时间:
2009-02
影响因子:
4.7
通讯作者:
Ley, Klaus
中科院分区:
文献类型:
--
作者:
Dang, Xitong;Raffler, Nikolai A.;Ley, Klaus
L-selectin mediates the initial tethering and rolling of lymphocytes in high endothelial venules. To study the transcriptional regulation of mouse L-selectin, we cloned 4.5 kb 5’-flanking sequences of the mouse sell. Luciferase analysis of serial 5’-deletion mutants showed that the first 285 bp was sufficient to drive high promoter activity in EL4 cells, but not in Sell-negative HeLa cells, suggesting that this fragment harbors the minimal mouse sell promoter and contains cis-elements for lymphocyte-specific expression. Site-directed mutagenesis and chromatin immunoprecipitation showed that Mzf1, Klf2, Sp1, Ets1, and Irf1 bind to and activate the mouse sell promoter. Over expression of these transcription factors in EL4 cells increased expression of sell mRNA. Silencing the expression of Sp1 by siRNA significantly decreased sell promoter activity in EL4 cells. We conclude that sell transcription is regulated by Mzf1, Klf2, Sp1, Ets1, and Irf1.
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影响因子:
8
作者:
Jinnin, M;Ihn, H;Tamaki, K
通讯作者:
Tamaki, K
影响因子:
4.4
作者:
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通讯作者:
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影响因子:
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作者:
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通讯作者:
Trojanowska, M
DOI:
10.1073/pnas.0603289103
发表时间:
2006-06-13
影响因子:
11.1
作者:
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通讯作者:
Doherty, Peter C.
影响因子:
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作者:
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通讯作者:
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