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 #
5R01EY007060-08
Application #
2161245
Study Section
Visual Sciences A Study Section (VISA)
Project Start
1987-05-01
Project End
1995-04-30
Budget Start
1994-05-01
Budget End
1995-04-30
Support Year
8
Fiscal Year
1994
Total Cost
Indirect Cost
Name
University of Michigan Ann Arbor
Department
Ophthalmology
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
Gramage, Esther; D'Cruz, Travis; Taylor, Scott et al. (2015) Midkine-a protein localization in the developing and adult retina of the zebrafish and its function during photoreceptor regeneration. PLoS One 10:e0121789
Taylor, Scott M; Alvarez-Delfin, Karen; Saade, Carole J et al. (2015) The bHLH Transcription Factor NeuroD Governs Photoreceptor Genesis and Regeneration Through Delta-Notch Signaling. Invest Ophthalmol Vis Sci 56:7496-515
Gramage, E; Li, J; Hitchcock, P (2014) The expression and function of midkine in the vertebrate retina. Br J Pharmacol 171:913-23
Huang, Tao; Cui, Jianlin; Li, Lei et al. (2012) The role of microglia in the neurogenesis of zebrafish retina. Biochem Biophys Res Commun 421:214-20
Taylor, Scott; Chen, Jing; Luo, Jing et al. (2012) Light-induced photoreceptor degeneration in the retina of the zebrafish. Methods Mol Biol 884:247-54
Luo, Jing; Uribe, Rosa A; Hayton, Sarah et al. (2012) Midkine-A functions upstream of Id2a to regulate cell cycle kinetics in the developing vertebrate retina. Neural Dev 7:33
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

Showing the most recent 10 out of 19 publications