The long term objectives of the work proposed here are to contribute to our understanding of the mechanisms that underlie the development of the eye and brain. The immediate aims of this proposal are: 1) describe the contacts made by the dendritic growth cones of ganglion cells within the nascent inner plexiform layer; 2) determine whether or not the temporal differences in the electrical activity of afferent synapses is a guidance cue for dendritic growth 3) characterize the degree to which locally regenerated retina resembles the surrounding, undamaged retina; and 4) experimentally test whether or not the undamaged retina serves as a template upon which a local patch of retina is regenerated.
These aims will be achieved by using electron microscopy, light microscopy, intracellular injections of individual retinal neurons with markers for light and electron microscopy, and immunocytochemistry. It is expected that the studies described herein will provide information that will eventually be useful for devising strategies for treating diseases of, or damage to the central nervous system.

Agency
National Institute of Health (NIH)
Institute
National Eye Institute (NEI)
Type
Research Project (R01)
Project #
2R01EY007060-04
Application #
3263928
Study Section
Visual Sciences A Study Section (VISA)
Project Start
1987-05-01
Project End
1995-04-30
Budget Start
1990-05-01
Budget End
1991-04-30
Support Year
4
Fiscal Year
1990
Total Cost
Indirect Cost
Name
University of Michigan Ann Arbor
Department
Type
Schools of Medicine
DUNS #
791277940
City
Ann Arbor
State
MI
Country
United States
Zip Code
48109
Walsh, Caroline E; Hitchcock, Peter F (2017) Progranulin regulates neurogenesis in the developing vertebrate retina. Dev Neurobiol 77:1114-1129
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Thomas, Jennifer L; Ochocinska, Margaret J; Hitchcock, Peter F et al. (2012) Using the Tg(nrd:egfp)/albino zebrafish line to characterize in vivo expression of neurod. PLoS One 7:e29128
Ghosh, Amiya K; Murga-Zamalloa, Carlos A; Chan, Lansze et al. (2010) Human retinopathy-associated ciliary protein retinitis pigmentosa GTPase regulator mediates cilia-dependent vertebrate development. Hum Mol Genet 19:90-8
Craig, Sonya E L; Thummel, Ryan; Ahmed, Hafiz et al. (2010) The zebrafish galectin Drgal1-l2 is expressed by proliferating Muller glia and photoreceptor progenitors and regulates the regeneration of rod photoreceptors. Invest Ophthalmol Vis Sci 51:3244-52

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