Expanding the power of recombinase-based labeling to uncover cellular diversity.
Development
; 142(24): 4385-93, 2015 Dec 15.
Article
em En
| MEDLINE
| ID: mdl-26586220
ABSTRACT
Investigating the developmental, structural and functional complexity of mammalian tissues and organs depends on identifying and gaining experimental access to diverse cell populations. Here, we describe a set of recombinase-responsive fluorescent indicator alleles in mice that significantly extends our ability to uncover cellular diversity by exploiting the intrinsic genetic signatures that uniquely define cell types. Using a recombinase-based intersectional strategy, these new alleles uniquely permit non-invasive labeling of cells defined by the overlap of up to three distinct gene expression domains. In response to different combinations of Cre, Flp and Dre recombinases, they express eGFP and/or tdTomato to allow the visualization of full cellular morphology. Here, we demonstrate the value of these features through a proof-of-principle analysis of the central noradrenergic system. We label previously inaccessible subpopulations of noradrenergic neurons to reveal details of their three-dimensional architecture and axon projection profiles. These new indicator alleles will provide experimental access to cell populations at unprecedented resolution, facilitating analysis of their developmental origin and anatomical, molecular and physiological properties.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Coloração e Rotulagem
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Recombinases
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Neurônios
Limite:
Animals
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article