Protein synthesis and axonal transport during nerve regeneration.
J Neurochem
; 37(5): 1203-17, 1981 Nov.
Article
en En
| MEDLINE
| ID: mdl-6170733
Protein synthesis and axonal transport have been studied in regenerating peripheral nerves. Sciatic nerves of bullfrogs were unilaterally crushed or cut. The animals were killed 1, 2, or 4 weeks later, and 8th and 9th dorsal root ganglia removed together with sciatic nerves and dorsal roots. The ganglia were selectively labeled in vitro with [35S]-methionine. Labeled proteins, in dorsal root ganglia and rapidly transported to ligatures placed on the sciatic nerves and dorsal roots, were analyzed by two-dimensional polyacrylamide gel electrophoresis. Qualitative analysis of protein patterns revealed no totally new proteins synthesized or rapidly transported in regenerating nerves. However, quantitative comparison of regenerating and contralateral control nerves revealed significant differences in abundance for some of the proteins synthesized in dorsal root ganglia, and for a few of the rapidly transported proteins. Quantitative analysis of rapidly transported proteins in both the peripheral processes (spinal nerves) and central processes (dorsal roots) revealed similar changes despite the fact that the roots were undamaged. The overall lack of drastic changes seen in protein synthesis and transport suggests that the neuron in its program of normal maintenance synthesizes and supplies most of the materials required for axon regrowth.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Nervio Ciático
/
Transporte Axonal
/
Ganglios Espinales
/
Regeneración Nerviosa
/
Proteínas del Tejido Nervioso
Tipo de estudio:
Qualitative_research
Límite:
Animals
Idioma:
En
Revista:
J Neurochem
Año:
1981
Tipo del documento:
Article
Pais de publicación:
Reino Unido