The investigator proposes to explore the molecular biology of primary open angle glaucoma. They have mapped phenotypically classically high intraocular pressure adult onset open angle glaucoma to chromosome 3q. They report that their families have late onset glaucomatous optic neuropathy. This suggests that their gene may be more relevant to the study of open angle glaucoma than those reported by other investigators. They suggest that these investigations will be an important step in providing a diagnostic tool for glaucoma, improving drug therapy, and perhaps leading eventually to gene therapy. They propose three specific aims. First, they intend to gather data and blood samples from families with a positive open angle glaucoma family history. They intend to determine if open angle glaucoma in these families is linked to regions on chromosome 1, 2 or 3. They will lay out rigorous criteria for identifying open angle glaucoma. They note that three loci have now been mapped. Identifying families in which OAG maps to one of these regions will help to refine these locations and clarify the associated phenotypes.
In specific aim 2, they intend to narrow the open angle glaucoma region on chromosome 3 and identify candidate genes. They intend to use the technique of saturation mapping over the open angle glaucoma region on chromosome 3 to identify recombinants in each family. Genes in this region that are also expressed in the trabecular meshwork will become prime candidate genes.
In specific aim 3, they intend to look for OAG families which do not localize to 1, 2 or 3, using a genome wide mapping strategy.

Agency
National Institute of Health (NIH)
Institute
National Eye Institute (NEI)
Type
Research Project (R01)
Project #
5R01EY011650-06
Application #
6524931
Study Section
Visual Sciences A Study Section (VISA)
Program Officer
Chin, Hemin R
Project Start
1997-08-01
Project End
2003-07-31
Budget Start
2002-08-01
Budget End
2003-07-31
Support Year
6
Fiscal Year
2002
Total Cost
$302,000
Indirect Cost
Name
Oregon Health and Science University
Department
Ophthalmology
Type
Schools of Medicine
DUNS #
009584210
City
Portland
State
OR
Country
United States
Zip Code
97239
Keller, Kate E; Wirtz, Mary K (2017) Working your SOCS off: The role of ASB10 and protein degradation pathways in glaucoma. Exp Eye Res 158:154-160
Keller, Kate E; Yang, Yong-Feng; Sun, Ying Ying et al. (2014) Interleukin-20 receptor expression in the trabecular meshwork and its implication in glaucoma. J Ocul Pharmacol Ther 30:267-76
Keller, Kate E; Yang, Yong-Feng; Sun, Ying Ying et al. (2013) Ankyrin repeat and suppressor of cytokine signaling box containing protein-10 is associated with ubiquitin-mediated degradation pathways in trabecular meshwork cells. Mol Vis 19:1639-55
Sengle, Gerhard; Tsutsui, Ko; Keene, Douglas R et al. (2012) Microenvironmental regulation by fibrillin-1. PLoS Genet 8:e1002425
Pasutto, Francesca; Keller, Kate E; Weisschuh, Nicole et al. (2012) Variants in ASB10 are associated with open-angle glaucoma. Hum Mol Genet 21:1336-49
Charlesworth, Jac; Kramer, Patricia L; Dyer, Tom et al. (2010) The path to open-angle glaucoma gene discovery: endophenotypic status of intraocular pressure, cup-to-disc ratio, and central corneal thickness. Invest Ophthalmol Vis Sci 51:3509-14
Wirtz, Mary K; Samples, John R; Toumanidou, Victoria et al. (2010) Association of POAG risk factors and the Thr377Met MYOC mutation in an isolated Greek population. Invest Ophthalmol Vis Sci 51:3055-60
Wirtz, Mary K; Konstas, Anastasios G P; Samples, John R et al. (2008) Myocilin variations and familial glaucoma in Taxiarchis, a small Greek village. Mol Vis 14:774-81
Hewitt, Alex W; Samples, John R; Allingham, R Rand et al. (2007) Investigation of founder effects for the Thr377Met Myocilin mutation in glaucoma families from differing ethnic backgrounds. Mol Vis 13:487-92
Wirtz, Mary K; Samples, John R; Choi, Dongseok et al. (2007) Clinical features associated with an Asp380His Myocilin mutation in a US family with primary open-angle glaucoma. Am J Ophthalmol 144:75-80

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