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Genome-Wide Association Study for Glucocorticoid-Induced Ocular Hypertension
Jyoti Lama1,2, Renee Liu1, Alicia Huerta-Chagoya3,4
1Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts.
This study identified genetic variants, including rs13425173 in UBE2E3, linked to changes in intraocular pressure (IOP) after glucocorticoid (GC) exposure. These findings advance understanding of GC-induced IOP changes and potential genetic markers.
Area of Science:
- Ophthalmology
- Genetics
- Pharmacology
Background:
- Glucocorticoids (GCs) can induce significant changes in intraocular pressure (IOP), a major risk factor for glaucoma.
- Identifying genetic factors influencing GC-induced IOP changes is crucial for personalized treatment strategies.
Purpose of the Study:
- To pinpoint genetic variants associated with glucocorticoid-induced intraocular pressure (IOP) changes.
- Utilize genome-wide association study (GWAS) and whole exome sequencing (WES) for comprehensive genetic analysis.
Main Methods:
- Conducted a pharmacogenetic study involving a discovery cohort (FAME trials) and a replication cohort (MEE/RHC).
- Analyzed DNA from participants exposed to GCs (primarily via intravitreal injection) using GWAS and WES.
- Performed GWAS, WES rare variant gene burden analyses, and expression quantitative trait loci (eQTL) colocalization analysis.
Main Results:
- Identified genome-wide significant variants in the UBE2E3 locus (rs13425173 and rs1040227) associated with GC-induced IOP change.
- UBE2E3 locus showed linkage to gene expression regulation.
- Whole exome sequencing identified MSTO1 as a gene passing false discovery rate correction for GC-induced IOP change in the FAME cohort.
Conclusions:
- Discovered genome-wide significant common variants associated with glucocorticoid-induced intraocular pressure changes.
- Identified specific genes and rare variants potentially influencing intraocular pressure response to GCs.
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