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Biotechniques ; 67(6): 299-305, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31687836

RESUMO

Drosophila melanogaster possesses a complex nervous system, regulating sophisticated behavioral outputs, that serves as a powerful model for dissecting molecular mechanisms underlying neuronal function and neurodegenerative disease. Immunofluorescence techniques provide a way to visualize the spatiotemporal organization of these networks, permitting observation of their development, functional location, remodeling and, eventually, degradation. However, basic immunostaining techniques do not always result in efficient antibody penetration through the brain, and supplemental techniques to enhance permeability can compromise structural integrity, altering spatial organization. Here, slow freezing of brains is shown to facilitate antibody permeability without loss of antibody specificity or brain integrity. To demonstrate the advantages of this freezing technique, the results of two commonly used permeation methods - detergent-based and partial proteolytic digestion - are compared.


Assuntos
Encéfalo/metabolismo , Drosophila melanogaster/metabolismo , Imunofluorescência/métodos , Neurônios/metabolismo , Animais , Proteínas de Drosophila/metabolismo , Congelamento , Doenças Neurodegenerativas/metabolismo
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