A tridimensional view of the organization of actin filaments in the central nervous system by use of fluorescent photooxidation
Biocell
; 32(1): 1-8, Apr. 2008. ilus
Article
em En
| LILACS
| ID: lil-541117
Biblioteca responsável:
AR40.1
ABSTRACT
Cellular and subcellular organization and distribution of actin filaments have been studied with various techniques. The use of fluorescence photo-oxidation combined with phalloidin conjugates with eosin has allowed the examination of the precise cellular and subcellular location of F-actin. Correlative fluorescence light microscopy and transmission electron microscopy studies of F-actin distribution are facilitated with this method for morphological and physiological studies. Because phalloidin-eosin is smaller than other markers, this method allows the analysis of the three-dimensional location of F-actin with high-resolution light microscopy, three-d serial sections reconstructions, and electron tomography. The combination of selective staining and three-dimensional reconstructions provide a valuable tool for revealing aspects of the synaptic morphology that are not available when conventional electron microscopy is used. By applying this selective staining technique and three-dimensional imaging, we uncovered the structural organization of actin in the postsynaptic densities in physiological and pathological conditions.
Texto completo:
1
Bases de dados:
LILACS
Assunto principal:
Sistema Nervoso Central
/
Actinas
/
Amarelo de Eosina-(YS)
/
Foto-Oxidação
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Biocell
Assunto da revista:
Clulas
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Argentina