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Ciliary neurotrophic factor receptor alpha-immunoreactivity in the monkey central nervous system
J H Kordower1, Yaping-Chu, A J Maclennan
1Department of Neurological Sciences, Rush Presbyterian Medical Center, Chicago, Illinois 60612, USA.
The Journal of Comparative Neurology
|January 20, 1997
Summary
Ciliary neurotrophic factor receptor alpha (CNTFR alpha) is found in neurons throughout the primate brain and spinal cord, particularly in motor areas. This distribution suggests CNTFR alpha supports diverse central nervous system functions.
Area of Science:
- Neuroscience
- Cell Biology
- Neuroanatomy
Background:
- Ciliary neurotrophic factor (CNTF) supports neuronal viability and function.
- CNTF is being investigated for amyotrophic lateral sclerosis (ALS) treatment.
- The distribution of its receptor subunit, CNTFR alpha, in primates is unknown.
Purpose of the Study:
- To map the distribution of CNTFR alpha-immunoreactive cells in the brain and spinal cord of Cebus apella monkeys.
- To identify neuronal populations expressing CNTFR alpha.
Main Methods:
- Used a polyclonal antibody against CNTFR alpha.
- Performed immunohistochemical analysis on primate brain and spinal cord tissue.
- Evaluated CNTFR alpha-immunoreactivity in various CNS regions.
Main Results:
- CNTFR alpha immunoreactivity was exclusively found in neurons.
- High expression in spinal cord anterior horn motor neurons and cranial motor nuclei.
- Detected in motor-related areas (cerebellum, substantia nigra, red nucleus, neocortex) and autonomic regions.
- Significant expression also observed in the hippocampus.
Conclusions:
- CNTFR alpha is widely distributed in primate CNS neurons, especially in motor pathways.
- The receptor's presence in diverse functional areas suggests a broad role for CNTF signaling.
- Findings support further investigation into CNTF's therapeutic potential for neurological disorders.