Related Experiment Videos
Regulation of cholinergic development by target contact
Federation Proceedings
|September 1, 1985
Summary
Direct contact with target tissues significantly aids avian neuron development. This interaction supports neuron survival, receptor function, and transmitter synthesis, highlighting the complex nature of neurodevelopment.
Area of Science:
- Neuroscience
- Developmental Biology
- Cell Biology
Background:
- Avian ciliary ganglion neurons serve as a model for studying neuronal development.
- The role of direct cell-cell contact in neuronal development is crucial but complex.
Purpose of the Study:
- To investigate the developmental impact of direct physical contact between neurons and target tissues.
- To understand how target tissue interaction influences neuronal function acquisition and retention.
Main Methods:
- Utilizing avian ciliary ganglion neurons in cell culture.
- Co-culturing neurons with live myotubes and myotube membrane remnants.
- Assessing neuronal survival, nicotinic acetylcholine receptor activity, and transmitter synthesis capacity.
Main Results:
- Direct contact with live myotubes and their membrane remnants stimulated or accelerated neuronal development.
- Target tissue contact supported neuron survival and aided the retention of active nicotinic receptors.
- Neuronal contact with target tissue accelerated the acquisition of adult transmitter synthetic capacity.
Conclusions:
- Direct physical contact with target tissues is a critical factor in avian neuronal development.
- Neurodevelopment involves a coordinated interplay of soluble factors, membrane-bound elements, and functional events.
- Target-derived signals are essential for supporting neuronal survival and functional maturation.