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Myosin function in nervous and sensory systems.
Michael E Brown1, Paul C Bridgman
1Department of Anatomy and Neurobiology, Washington University School of Medicine, Box 8108, 660 S. Euclid Avenue, St. Louis, Missouri 63110, USA.
Journal of Neurobiology
|November 5, 2003
Summary
Neuronal development relies on the actin cytoskeleton, modulated by myosins. This review explores how these force-producing proteins impact neuronal migration, process outgrowth, and sensory functions during nervous system development.
Area of Science:
- Neuroscience
- Cell Biology
Background:
- Neuronal development involves significant cytoskeletal changes.
- Microtubules and neurofilaments are established neuronal cytoskeleton components.
- The actin cytoskeleton's role in neurons is gaining research focus.
Purpose of the Study:
- To review the functions of myosins in the developing nervous system.
- To highlight the roles of myosins in neuronal migration, process outgrowth, and growth cone motility.
- To discuss the involvement of myosins in sensory functions.
Main Methods:
- Literature review of studies on neuronal myosins.
- Analysis of myosin classes expressed in developing neurons and sensory cells.
- Focus on specific cellular functions influenced by myosins.
Main Results:
- Myosins are crucial force-producing proteins in neurons.
- Various myosin classes (I, II, III, V, VI, VII, IX, XV) are expressed in developing neurons.
- Myosins are implicated in neuronal migration, process outgrowth, growth cone motility, morphogenesis, axonal transport, and synaptic/sensory functions.
Conclusions:
- Myosins play diverse and critical roles in neuronal development and function.
- Understanding myosin involvement is key to comprehending nervous system formation.
- Further research into specific myosin functions will illuminate neuronal processes.