Related Experiment Videos
CD15 immunoreactive amacrine cells in the mouse retina
Tatjana C Jakobs1, Yixin Ben, Richard H Masland
1Howard Hughes Medical Institute, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114, USA.
The Journal of Comparative Neurology
|September 11, 2003
Summary
Researchers identified two novel types of CD15-positive amacrine cells in the mouse retina. These GABAergic cells, distinct from known subtypes, co-express AMPA receptors, offering new insights into retinal circuitry.
Area of Science:
- Neuroscience
- Retinal Cell Biology
- Vision Research
Background:
- The mouse retina is a key model for vision research due to transgenic availability.
- Specific cell markers are crucial for understanding inner retinal function and connectivity.
Purpose of the Study:
- To characterize CD15-positive cells in the mouse retina.
- To identify novel cell types and their molecular markers for inner retinal studies.
Main Methods:
- Immunofluorescence confocal microscopy to visualize CD15 immunoreactivity.
- Reverse-transcription polymerase chain reaction (RT-PCR) for molecular analysis.
- Double labeling with other amacrine cell markers.
Main Results:
- CD15 immunoreactivity identified two distinct types of GABAergic amacrine cells (Type I and Type II) and faintly in cone bipolar cells.
- Type I amacrine cells stratify in lamina 3 and 4/5; Type II amacrine cells stratify in lamina 1, co-localizing with dopaminergic cells.
- CD15+ amacrine cells are novel subtypes, co-expressing GluR1, GluR2, and GluR4 AMPA receptors.
Conclusions:
- CD15 marks two previously unidentified GABAergic amacrine cell populations in the mouse retina.
- These novel cell types contribute to understanding inner retinal organization and function.
- The co-expression of AMPA receptors suggests roles in synaptic transmission within the inner retina.