Substitution of the Human β-Spectrin Promoter for the Human Aγ-Globin Promoter Prevents Silencing of a Linked Human β-Globin Gene in Transgenic Mice
Substitution of the Human β-Spectrin Promoter for the Human Aγ-Globin Promoter Prevents Silencing of a Linked Human β-Globin Gene in Transgenic Mice
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用人 β-血影蛋白启动子替代人 Aγ-珠蛋白启动子可防止转基因小鼠中相关人 β-珠蛋白基因的沉默
DOI:
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发表时间:
1998
影响因子:
5.3
通讯作者:
D. Bodine
中科院分区:
文献类型:
--
作者:
D. Sabatino;A. P. Cline;P. Gallagher;L. Garrett;G. Stamatoyannopoulos;B. Forget;D. Bodine
ABSTRACT During development, changes occur in both the sites of erythropoiesis and the globin genes expressed at each developmental stage. Previous work has shown that high-level expression of human β-like globin genes in transgenic mice requires the presence of the locus control region (LCR). Models of hemoglobin switching propose that the LCR and/or stage-specific elements interact with globin gene sequences to activate specific genes in erythroid cells. To test these models, we generated transgenic mice which contain the human Aγ-globin gene linked to a 576-bp fragment containing the human β-spectrin promoter. In these mice, the β-spectrin Aγ-globin (βsp/Aγ) transgene was expressed at high levels in erythroid cells throughout development. Transgenic mice containing a 40-kb cosmid construct with the micro-LCR, βsp/Aγ-, ψβ-, δ-, and β-globin genes showed no developmental switching and expressed both human γ- and β-globin mRNAs in erythroid cells throughout development. Mice containing control cosmids with the Aγ-globin gene promoter showed developmental switching and expressed Aγ-globin mRNA in yolk sac and fetal liver erythroid cells and β-globin mRNA in fetal liver and adult erythroid cells. Our results suggest that replacement of the γ-globin promoter with the β-spectrin promoter allows the expression of the β-globin gene. We conclude that the γ-globin promoter is necessary and sufficient to suppress the expression of the β-globin gene in yolk sac erythroid cells.
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DOI:
--
发表时间:
1987
期刊:
Progress in clinical and biological research
影响因子:
--
作者:
Rucknagel,DL;Sarniak,SA;Whitten,CF;Odenheimer,DA
通讯作者:
Odenheimer,DA
影响因子:
10.5
作者:
FIERING, S;EPNER, E;GROUDINE, M
通讯作者:
GROUDINE, M
DOI:
10.1073/pnas.92.12.5655
发表时间:
1995-06
影响因子:
11.1
作者:
K. Peterson;Qi Liang Li;C. Clegg;T. Furukawa;P. Navas;E. J. Norton;T. Kimbrough;G. Stamatoyannopoulos
通讯作者:
K. Peterson;Qi Liang Li;C. Clegg;T. Furukawa;P. Navas;E. J. Norton;T. Kimbrough;G. Stamatoyannopoulos
影响因子:
10.5
作者:
Ryan,TM;Behringer,RR;Martin,NC;Townes,TM;Palmiter,RD;Brinster,RL
通讯作者:
Brinster,RL
DOI:
10.1126/science.2251502
发表时间:
1990
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Raich,N;Enver,T;Nakamoto,B;Josephson,B;Papayannopoulou,T;Stamatoyannopoulos,G
通讯作者:
Stamatoyannopoulos,G