This grant is a competing renewal with the long-range goal of understanding how cytokines initiate and perpetuate PVR. This application is based on the hypothesis that HA is an important regulator of cytokine production by RPE, that the cytokines influence monocyte recruitment, which in turn perpetuates the wound healing response. To test the hypothesis, the following aims are proposed: (1) to determine the effect of HA on cytokine production, cell proliferation, and cell migration in cultured human RPE and to determine if the effects are mediated by HA receptors; (2) to determine if subretinal fluid (SRF) from patients with rhegmatogenous retinal detachment (RRD) influences cytokine production by human RPE cells and monocytes and what role HA may play in this; and (3) to determine which specific cytokines are in the SRF of eyes with rhegmatogenous retinal detachment that can influence the migration and survival of human monocytes.

Agency
National Institute of Health (NIH)
Institute
National Eye Institute (NEI)
Type
Research Project (R01)
Project #
5R01EY009106-07
Application #
2634418
Study Section
Visual Sciences C Study Section (VISC)
Project Start
1992-01-01
Project End
2000-12-31
Budget Start
1998-01-01
Budget End
1999-02-28
Support Year
7
Fiscal Year
1998
Total Cost
Indirect Cost
Name
Duke University
Department
Ophthalmology
Type
Schools of Medicine
DUNS #
071723621
City
Durham
State
NC
Country
United States
Zip Code
27705
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Zhang, Nanfei; Peairs, James J; Yang, Ping et al. (2007) The importance of Bcl-xL in the survival of human RPE cells. Invest Ophthalmol Vis Sci 48:3846-53
Yang, Ping; Peairs, James J; Tano, Ryotaro et al. (2006) Oxidant-mediated Akt activation in human RPE cells. Invest Ophthalmol Vis Sci 47:4598-606
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Jaffe, Glenn J; Brownlow, Robert; Hines, John (2003) Modified external needle drainage procedure for rhegmatogenous retinal detachment. Retina 23:80-5
Park, Carl H; Jaffe, Glenn J; Fekrat, Sharon (2003) Intravitreal triamcinolone acetonide in eyes with cystoid macular edema associated with central retinal vein occlusion. Am J Ophthalmol 136:419-25