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Neuronal extracellular proteases facilitate cell migration, axonal growth, and pathfinding
N W Seeds1, L B Siconolfi, S P Haffke
1Department of Biochemistry & Molecular Genetics, and Neuroscience Center, University of Colorado Health Sciences Center, Denver, CO 80262, USA. Nicholas.Seeds@UCHSC.edu
Cell and Tissue Research
|October 10, 1997
Summary
Extracellular proteases, like plasminogen activators (PAs), aid axonal growth cone movement by breaking down cellular contacts. Recent findings reveal their complex biological roles in neural development and regeneration.
Area of Science:
- Neuroscience
- Molecular Biology
- Developmental Biology
Background:
- Axonal growth cones navigate complex environments during neural development and regeneration.
- Extracellular proteases are hypothesized to facilitate growth cone advancement by degrading extracellular matrix and cell adhesion molecules.
Purpose of the Study:
- To investigate the role of serine proteases, specifically plasminogen activators (PAs), in axonal growth cone motility.
- To explore the complex biological functions of PAs in neural pathfinding.
Main Methods:
- Focuses on the secretion and localization of plasminogen activators (PAs) at the growth cones of cultured mammalian neurons.
- Discusses recent research findings on the biological actions of these proteases.
Main Results:
- Plasminogen activators (PAs) are secreted and concentrated at axonal growth cones.
- PAs are strategically positioned to influence growth cone movement and axonal pathfinding.
Conclusions:
- Plasminogen activators (PAs) likely play a significant role in guiding axonal growth during development and regeneration.
- The precise biological functions of PAs in this context are more intricate than previously understood.