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Isolation and sequence analysis of two intermediate filament cDNA clones from fish optic nerve
I Cohen1, Y Shani, E Blaugrund
1Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
Brain Research. Molecular Brain Research
|September 1, 1991
Summary
Fish non-neuronal cells support central nervous system regeneration. Researchers identified fish vimentin and keratin 8 structural proteins, crucial for understanding non-neuronal cell plasticity and axonal growth support.
Area of Science:
- Neuroscience
- Cell Biology
- Developmental Biology
Background:
- Fish exhibit remarkable central nervous system (CNS) regeneration after injury.
- Non-neuronal cells in fish CNS play a crucial role in supporting this regenerative capacity.
- Understanding the structural basis of non-neuronal cell support is key to enhancing axonal growth.
Purpose of the Study:
- To characterize structural proteins in fish non-neuronal cells.
- To identify intermediate filament proteins expressed by fish astrocytes.
- To investigate the role of these proteins in non-neuronal cell plasticity and support for axonal regeneration.
Main Methods:
- Isolation of cDNA clones encoding fish intermediate filament proteins.
- Identification of specific protein sequences, including vimentin and keratin 8.
- Analysis of gene expression related to non-neuronal cell structural components.
Main Results:
- Successfully isolated cDNA clones for fish intermediate filaments.
- Identified one clone as fish vimentin.
- Identified another clone as fish keratin 8, a known structural protein.
Conclusions:
- Fish vimentin and keratin 8 are prominent structural proteins in fish astrocytes.
- These identified cDNAs provide tools for further research into fish non-neuronal cell plasticity.
- Characterizing these proteins advances our understanding of CNS regenerative mechanisms in fish.