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Optical Coherence Tomography: Imaging Mouse Retinal Ganglion Cells In Vivo
Published on: September 22, 2017
OPA1 expression in the human retina and optic nerve
An-Guor Wang1, Ming-Ji Fann, Hsin-Yi Yu
1Department of Ophthalmology, Taipei Veterans General Hospital, No. 201 Section 2 Shih-Pai Road, Taipei 11217, Taiwan.
Experimental Eye Research
|July 22, 2006
Summary
Optic atrophy type 1 (OPA1) protein is expressed in retinal ganglion cells, photoreceptors, and the optic nerve axonal tract in humans. This suggests OPA1 plays a role in mitochondrial function within these crucial neuronal components.
Area of Science:
- Neuroscience
- Genetics
- Ophthalmology
Background:
- Mutations in the optic atrophy type 1 (OPA1) gene cause autosomal dominant optic atrophy in humans.
- Understanding OPA1 protein expression is crucial for elucidating its role in optic neuropathies.
Purpose of the Study:
- To investigate the expression patterns of OPA1 protein within the human retina and optic nerve.
Main Methods:
- Generated a rabbit polyclonal antiserum against a human OPA1 fusion protein.
- Utilized Western blot and immunofluorescence staining to detect OPA1 expression.
Main Results:
- OPA1 was detected in human retinal ganglion cells, photoreceptors, and nerve fiber, inner, and outer plexiform layers.
- OPA1 expression was observed in the optic nerve's axonal tract.
- OPA1 was notably absent in specific amacrine and horizontal cell populations.
Conclusions:
- OPA1 protein is expressed in mitochondria-rich regions of the human retina and optic nerve.
- These findings suggest OPA1 protein is involved in mitochondrial function in both inner and outer retinal neurons.
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