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Expression of voltage-dependent calcium channel subunits in the rat retina
- Source :
- Neuroscience letters. 329(3)
- Publication Year :
- 2002
-
Abstract
- The expression patterns of different Ca(2+) channel alpha(1) subunits (alpha(1A-E)) were immunohistochemically studied in the rat retina. Intense immunoreactivity (IR) for alpha(1A) (P/Q-type) and alpha(1B) (N-type) Ca(2+) channels was observed in both the outer and inner plexiform layers (OPL and IPL). In addition, alpha(1B)-IR was found in the outer and inner nuclear layers. Staining for alpha(1E) (R-type) was diffusely distributed in all three nuclear layers and in the IPL. The alpha(1C) and alpha(1D), two L-type Ca(2+) channel subunits, exhibited distinct expression patterns, with alpha(1C) being almost exclusively expressed on bipolar cells, and alpha(1D) mainly on photoreceptor cell bodies and in the OPL. Staining for alpha(1D) was also observed on Muller cells. The differential expression pattern of the alpha(1) subunits suggests that these Ca(2+) channel subtypes may be associated with different retinal functions.
- Subjects :
- Male
medicine.medical_specialty
Calcium Channels, L-Type
Protein subunit
Alpha (ethology)
Biology
Photoreceptor cell
Retina
Calcium Channels, Q-Type
Rats, Sprague-Dawley
chemistry.chemical_compound
Internal medicine
Gene expression
medicine
Animals
Voltage-dependent calcium channel
General Neuroscience
Calcium channel
Retinal
Calcium Channels, P-Type
Molecular biology
Immunohistochemistry
Rats
medicine.anatomical_structure
Endocrinology
chemistry
sense organs
Calcium Channels
Subjects
Details
- ISSN :
- 03043940
- Volume :
- 329
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Neuroscience letters
- Accession number :
- edsair.doi.dedup.....77f4a1a0f4d0db639b0606691331712e