Highly B lymphocyte-specific tamoxifen inducible transgene expression of CreER T2 by using the LC-1 locus BAC vector.
Genesis
; 47(11): 729-35, 2009 Nov.
Article
em En
| MEDLINE
| ID: mdl-19621440
ABSTRACT
The generation of cell type specific inducible Cre transgenic mice is the most challenging and limiting part in the development of spatio-temporally controlled knockout mouse models. Here we report the generation and characterization of a B lymphocyte-specific tamoxifen-inducible Cre transgenic mouse strain, LC-1-hCD19-CreER(T2). We utilized the human CD19 promoter for expression of the tamoxifen-inducible Cre recombinase (CreER(T2)) gene, embedded in genomic sequences previously reported to give minimal position effects after transgenesis. Cre recombinase activity was evaluated by cross-breeding the LC-1-hCD19-CreER(T2) strain with a strain containing a floxed gene widely expressed in the hematopoietic system. Cre activity was only detected in the presence of tamoxifen and was restricted to B lymphocytes. The efficacy of recombination ranged from 27 to 61% in the hemizygous and homozygous mice, respectively. In conclusion, the LC-1-hCD19-CreER(T2) strain is a powerful tool to study gene function specifically in B lymphocytes at any chosen time point in the lifecycle of the mouse.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Tamoxifeno
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Linfócitos B
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Regulação da Expressão Gênica
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Transgenes
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Integrases
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Cromossomos Artificiais Bacterianos
Limite:
Animals
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Humans
Idioma:
En
Revista:
Genesis
Assunto da revista:
BIOLOGIA MOLECULAR
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Holanda