Glaucoma Heritability: Molecular Mechanisms of Disease

Glaucoma is one of the world’s leading causes of irreversible blindness. A complex, multifactorial disease, the underlying pathogenesis and reasons for disease progression are not fully understood. The most common form of glaucoma, primary open-angle glaucoma (POAG), was traditionally understood to...

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Main Authors: Ryan Zukerman, Alon Harris, Francesco Oddone, Brent Siesky, Alice Verticchio Vercellin, Thomas A. Ciulla
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Genes
Subjects:
Online Access:https://www.mdpi.com/2073-4425/12/8/1135
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author Ryan Zukerman
Alon Harris
Francesco Oddone
Brent Siesky
Alice Verticchio Vercellin
Thomas A. Ciulla
author_facet Ryan Zukerman
Alon Harris
Francesco Oddone
Brent Siesky
Alice Verticchio Vercellin
Thomas A. Ciulla
author_sort Ryan Zukerman
collection DOAJ
description Glaucoma is one of the world’s leading causes of irreversible blindness. A complex, multifactorial disease, the underlying pathogenesis and reasons for disease progression are not fully understood. The most common form of glaucoma, primary open-angle glaucoma (POAG), was traditionally understood to be the result of elevated intraocular pressure (IOP), leading to optic nerve damage and functional vision loss. Recently, researchers have suggested that POAG may have an underlying genetic component. In fact, studies of genetic association and heritability have yielded encouraging results showing that glaucoma may be influenced by genetic factors, and estimates for the heritability of POAG and disease-related endophenotypes show encouraging results. However, the vast majority of the underlying genetic variants and their molecular mechanisms have not been elucidated. Several genes have been suggested to have molecular mechanisms contributing to alterations in key endophenotypes such as IOP (<i>LMX1B</i>, <i>MADD</i>, <i>NR1H3</i>, and <i>SEPT9)</i>, and VCDR (<i>ABCA1</i>, <i>ELN</i>, <i>ASAP1</i>, and <i>ATOH7</i>). Still, genetic studies about glaucoma and its molecular mechanisms are limited by the multifactorial nature of the disease and the large number of genes that have been identified to have an association with glaucoma. Therefore, further study into the molecular mechanisms of the disease itself are required for the future development of therapies targeted at genes leading to POAG endophenotypes and, therefore, increased risk of disease.
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spelling doaj.art-95ec30ebafcb43a88503e8c99154a2462023-11-22T07:45:02ZengMDPI AGGenes2073-44252021-07-01128113510.3390/genes12081135Glaucoma Heritability: Molecular Mechanisms of DiseaseRyan Zukerman0Alon Harris1Francesco Oddone2Brent Siesky3Alice Verticchio Vercellin4Thomas A. Ciulla5Department of Ophthalmology, Icahn School of Medicine at Mt. Sinai, New York, NY 10029, USADepartment of Ophthalmology, Icahn School of Medicine at Mt. Sinai, New York, NY 10029, USAIRCCS–Fondazione Bietti, 00198 Rome, ItalyDepartment of Ophthalmology, Icahn School of Medicine at Mt. Sinai, New York, NY 10029, USADepartment of Ophthalmology, Icahn School of Medicine at Mt. Sinai, New York, NY 10029, USAMidwest Eye Institute, Indianapolis, IN 46290, USAGlaucoma is one of the world’s leading causes of irreversible blindness. A complex, multifactorial disease, the underlying pathogenesis and reasons for disease progression are not fully understood. The most common form of glaucoma, primary open-angle glaucoma (POAG), was traditionally understood to be the result of elevated intraocular pressure (IOP), leading to optic nerve damage and functional vision loss. Recently, researchers have suggested that POAG may have an underlying genetic component. In fact, studies of genetic association and heritability have yielded encouraging results showing that glaucoma may be influenced by genetic factors, and estimates for the heritability of POAG and disease-related endophenotypes show encouraging results. However, the vast majority of the underlying genetic variants and their molecular mechanisms have not been elucidated. Several genes have been suggested to have molecular mechanisms contributing to alterations in key endophenotypes such as IOP (<i>LMX1B</i>, <i>MADD</i>, <i>NR1H3</i>, and <i>SEPT9)</i>, and VCDR (<i>ABCA1</i>, <i>ELN</i>, <i>ASAP1</i>, and <i>ATOH7</i>). Still, genetic studies about glaucoma and its molecular mechanisms are limited by the multifactorial nature of the disease and the large number of genes that have been identified to have an association with glaucoma. Therefore, further study into the molecular mechanisms of the disease itself are required for the future development of therapies targeted at genes leading to POAG endophenotypes and, therefore, increased risk of disease.https://www.mdpi.com/2073-4425/12/8/1135glaucomageneticsheritabilityprimary open-angle glaucomaintraocular pressurecup-to-disc ratio
spellingShingle Ryan Zukerman
Alon Harris
Francesco Oddone
Brent Siesky
Alice Verticchio Vercellin
Thomas A. Ciulla
Glaucoma Heritability: Molecular Mechanisms of Disease
Genes
glaucoma
genetics
heritability
primary open-angle glaucoma
intraocular pressure
cup-to-disc ratio
title Glaucoma Heritability: Molecular Mechanisms of Disease
title_full Glaucoma Heritability: Molecular Mechanisms of Disease
title_fullStr Glaucoma Heritability: Molecular Mechanisms of Disease
title_full_unstemmed Glaucoma Heritability: Molecular Mechanisms of Disease
title_short Glaucoma Heritability: Molecular Mechanisms of Disease
title_sort glaucoma heritability molecular mechanisms of disease
topic glaucoma
genetics
heritability
primary open-angle glaucoma
intraocular pressure
cup-to-disc ratio
url https://www.mdpi.com/2073-4425/12/8/1135
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AT aliceverticchiovercellin glaucomaheritabilitymolecularmechanismsofdisease
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