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2008 ; 46
(6
): 300-7
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Cre-mediated recombination in mouse Clara cells
#MMPMID18543320
Li H
; Cho SN
; Evans CM
; Dickey BF
; Jeong JW
; DeMayo FJ
Genesis
2008[Jun]; 46
(6
): 300-7
PMID18543320
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Clara cells are nonciliated secretory cells lining the respiratory epithelium and
are easily identified by the expression of Clara cell secretory protein (CCSP).
To investigate molecular mechanism(s) regulating Clara cell function in the
lungs, Cre recombinase was inserted into exon 1 of the CCSP, generating two novel
mouse models, CCSP(Cre-Neo) and CCSP(Cre). These two models differ only by the
inclusion of the neomycin resistance gene. These mice were bred to the R26R
reporter mouse to investigate the tissue and cell specificity of Cre-mediated
recombination. The efficiency of Cre recombination in the CCSP(Cre) mouse model
was higher than in the CCSP(Cre-Neo) mouse model. Recombination was detected at D
4.5 in CCSP(Cre-Neo)/R26R mice and at D 0.5 in CCSP(Cre)/R26R mice. The
CCSP(Cre-Neo) and CCSP(Cre) mouse models provide valuable tools for the ablation
of genes in the postnatal mouse Clara cells.