Related Experiment Videos
The spatial and temporal pattern of beta NGF receptor expression in the developing chick embryo.
The EMBO Journal
|March 1, 1985
Summary
Nerve growth factor (NGF) receptor expression is widespread in developing chick embryos, particularly in sensory and sympathetic ganglia. Transient expression also occurs in motor neurons during synapse development.
Area of Science:
- Developmental Neuroscience
- Neurobiology
- Molecular Biology
Background:
- Nerve growth factor (NGF) is crucial for the development and survival of specific neuronal populations.
- Understanding NGF receptor expression patterns is key to elucidating its developmental roles.
Purpose of the Study:
- To map the developmental expression of NGF receptors in the chick embryo.
- To identify classical and transient sites of NGF receptor activity.
Main Methods:
- Autoradiographic analysis of [125I] beta NGF binding to frozen chick embryo sections.
- Examination across embryonic day 3 (E3) to post-hatching day 3.
Main Results:
- Strong NGF receptor expression detected in sensory and sympathetic ganglia from E4 onwards.
- Transient, high-affinity NGF receptor expression observed in the lateral motor column and muscle during synaptogenesis.
- Differential expression patterns noted in dorsal root ganglia aspects and transiently in the ciliary ganglion.
Conclusions:
- NGF receptor expression is dynamically regulated during chick development.
- Specific temporal and spatial expression patterns suggest diverse roles for NGF beyond classical targets.
- These findings provide insights into NGF-mediated developmental processes in the nervous system.