Evidence map›Paper›PMID 34143713›Full record

ArticleCurrent eye research2022

Identification of Missense Extracellular Matrix Gene Variants in a Large Glaucoma Pedigree and Investigation of the N700S Thrombospondin-1 Variant in Normal and Glaucomatous Trabecular Meshwork Cells.

Mary K Wirtz, Renee Sykes, John Samples, Beth Edmunds, Dongseok Choi, Douglas R Keene, Sara F Tufa, Ying Ying Sun, Kate E Keller

Open access · greenAbstract read
In one paragraph

Article in Current eye research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.6field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 21 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Mary K WirtzCasey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA.
Renee SykesCasey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA.
John SamplesElson Floyd College of Medicine, Washington State University, Spokane, Washington, USA.
Beth EdmundsCasey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA.
Dongseok ChoiCasey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA.
Douglas R KeeneShriners Hospitals for Children, Portland, Oregon, USA.
Sara F TufaShriners Hospitals for Children, Portland, Oregon, USA.
Ying Ying SunCasey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA.
Kate E KellerCasey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA.
Oregon Health & Science University · USShriners Hospitals for Children - Portland · USKyung Hee University · KRWashington State University Spokane · US

Funding

Proteomics CoreP30EY010572 · NEI · OREGON HEALTH & SCIENCE UNIVERSITY · PI Kate E Keller · 1995 to 2026
$19.4M
Extracellular Matrix and Outflow ResistanceR01EY019643 · NEI · OREGON HEALTH & SCIENCE UNIVERSITY · PI KELLER, KATE E · 2010 to 2025
$5.0M
GENETICS OF ADULT-ONSET PRIMARY OPEN-ANGLE GLAUCOMAR01EY011650 · NEI · OREGON HEALTH & SCIENCE UNIVERSITY · PI WIRTZ, MARY K · 1997 to 2014
$5.0M
Thrombospondin-1 in normal and glaucomatous trabecular meshworkR01EY032590 · NEI · OREGON HEALTH & SCIENCE UNIVERSITY · PI KELLER, KATE E · 2022 to 2025
$1.6M
NEI NIH HHS P30 EY010572NEI NIH HHS R01 EY011650NEI NIH HHS R01 EY019643NEI NIH HHS R01 EY032590
6 · The paper itself

Abstract

purposePrimary open-angle glaucoma (POAG) is a complex heterogeneous disease. While several POAG genes have been identified, a high proportion of estimated heritability remains unexplained. Elevated intraocular pressure (IOP) is a leading POAG risk factor and dysfunctional extracellular matrix (ECM) in the trabecular meshwork (TM) contributes to elevated IOP. In this study, we sought to identify missense variants in ECM genes that correlate with ocular hypertensive POAG.

methodsWhole-genome sequencing was used to identify genetic variants in five members of a large POAG family (n = 68) with elevated IOP. The remaining family members were screened by Sanger sequencing. Unrelated normal (NTM) and glaucomatous (GTM) cells were sequenced for the identified variants. The ECM protein levels were determined by Western immunoblotting and confocal and electron microscopy investigated ECM ultrastructural organization.

resultsThree ECM gene variants were significantly associated with POAG or elevated IOP in a large POAG pedigree. These included rs2228262 (N700S; thrombospondin-1 (

conclusionsOur results suggest that missense variants in ECM genes may not cause catastrophic changes to the TM, but over many years, subtle changes in ECM may accumulate and cause structural disorganization of the outflow resistance leading to elevated IOP in POAG patients.

Indexed as

Mutation, MissenseAdultAgedAqueous HumorBlotting, WesternCells, CulturedDNADNA Mutational AnalysisExtracellular Matrix ProteinsFemaleGlaucoma, Open-AngleHumansIntraocular PressureMaleMiddle AgedPedigreeDNAExtracellular Matrix ProteinsThrombospondin 1thrombospondin-1, humanextracellular matrixgeneticsglaucomatrabecular meshwork

Identifiers

PMID34143713
PMCPMC8733052
OpenAlexW3169613331

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.