Interneuronal Transfer and Distal Action of Tetanus Toxin and Botulinum Neurotoxins A and D in Central Neurons.
Cell Rep
; 16(7): 1974-87, 2016 08 16.
Article
em En
| MEDLINE
| ID: mdl-27498860
ABSTRACT
Recent reports suggest that botulinum neurotoxin (BoNT) A, which is widely used clinically to inhibit neurotransmission, can spread within networks of neurons to have distal effects, but this remains controversial. Moreover, it is not known whether other members of this toxin family are transferred between neurons. Here, we investigate the potential distal effects of BoNT/A, BoNT/D, and tetanus toxin (TeNT), using central neurons grown in microfluidic devices. Toxins acted upon the neurons that mediated initial entry, but all three toxins were also taken up, via an alternative pathway, into non-acidified organelles that mediated retrograde transport to the somato-dendritic compartment. Toxins were then released into the media, where they entered and exerted their effects upon upstream neurons. These findings directly demonstrate that these agents undergo transcytosis and interneuronal transfer in an active form, resulting in long-distance effects.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Toxina Tetânica
/
Toxinas Botulínicas
/
Toxinas Botulínicas Tipo A
/
Hipocampo
/
Neurônios
Limite:
Animals
Idioma:
En
Revista:
Cell Rep
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Estados Unidos