Decrease of FZD4 exon 1 methylation in probands from FZD4-associated FEVR family of phenotypic heterogeneity

Familial exudative vitreoretinopathy (FEVR) is an important cause of childhood blindness and is clinically characterized by phenotypic heterogeneity. FEVR patients harboring the same genetic mutation vary widely in disease severity. The purpose of this study was to explore non-genetic factors that r...

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Main Authors: Miaomiao Liu, Jia Luo, Huazhang Feng, Jing Li, Xiang Zhang, Peiquan Zhao, Ping Fei
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-10-01
Series:Frontiers in Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmed.2022.976520/full
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author Miaomiao Liu
Jia Luo
Huazhang Feng
Jing Li
Xiang Zhang
Peiquan Zhao
Ping Fei
author_facet Miaomiao Liu
Jia Luo
Huazhang Feng
Jing Li
Xiang Zhang
Peiquan Zhao
Ping Fei
author_sort Miaomiao Liu
collection DOAJ
description Familial exudative vitreoretinopathy (FEVR) is an important cause of childhood blindness and is clinically characterized by phenotypic heterogeneity. FEVR patients harboring the same genetic mutation vary widely in disease severity. The purpose of this study was to explore non-genetic factors that regulate FEVR phenotypic heterogeneity. We detected methylation levels of 21 CpG sites located at the FZD4 exon 1 region of 11 probands, 12 asymptomatic/paucisymptomatic carriers and 11 non-carriers from 10 unrelated FZD4-associated FEVR families using bisulfite amplicon sequencing (BSAS). Our results showed reduced methylation level of FZD4 exon 1 in probands, suggesting that FZD4 exon 1 methylation level may be negatively linked with FEVR disease severity. It provided a new research direction for follow-up research, helping us better understand the complexity of the FEVR-causing mechanism.
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spelling doaj.art-534dd1973b8d44ba8d72e2031bcee68f2022-12-22T04:06:27ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2022-10-01910.3389/fmed.2022.976520976520Decrease of FZD4 exon 1 methylation in probands from FZD4-associated FEVR family of phenotypic heterogeneityMiaomiao LiuJia LuoHuazhang FengJing LiXiang ZhangPeiquan ZhaoPing FeiFamilial exudative vitreoretinopathy (FEVR) is an important cause of childhood blindness and is clinically characterized by phenotypic heterogeneity. FEVR patients harboring the same genetic mutation vary widely in disease severity. The purpose of this study was to explore non-genetic factors that regulate FEVR phenotypic heterogeneity. We detected methylation levels of 21 CpG sites located at the FZD4 exon 1 region of 11 probands, 12 asymptomatic/paucisymptomatic carriers and 11 non-carriers from 10 unrelated FZD4-associated FEVR families using bisulfite amplicon sequencing (BSAS). Our results showed reduced methylation level of FZD4 exon 1 in probands, suggesting that FZD4 exon 1 methylation level may be negatively linked with FEVR disease severity. It provided a new research direction for follow-up research, helping us better understand the complexity of the FEVR-causing mechanism.https://www.frontiersin.org/articles/10.3389/fmed.2022.976520/fullfamilial exudative vitreoretinopathy (FEVR)the receptor frizzled-4 (FZD4)phenotypic heterogeneityDNA methylationepigenetics
spellingShingle Miaomiao Liu
Jia Luo
Huazhang Feng
Jing Li
Xiang Zhang
Peiquan Zhao
Ping Fei
Decrease of FZD4 exon 1 methylation in probands from FZD4-associated FEVR family of phenotypic heterogeneity
Frontiers in Medicine
familial exudative vitreoretinopathy (FEVR)
the receptor frizzled-4 (FZD4)
phenotypic heterogeneity
DNA methylation
epigenetics
title Decrease of FZD4 exon 1 methylation in probands from FZD4-associated FEVR family of phenotypic heterogeneity
title_full Decrease of FZD4 exon 1 methylation in probands from FZD4-associated FEVR family of phenotypic heterogeneity
title_fullStr Decrease of FZD4 exon 1 methylation in probands from FZD4-associated FEVR family of phenotypic heterogeneity
title_full_unstemmed Decrease of FZD4 exon 1 methylation in probands from FZD4-associated FEVR family of phenotypic heterogeneity
title_short Decrease of FZD4 exon 1 methylation in probands from FZD4-associated FEVR family of phenotypic heterogeneity
title_sort decrease of fzd4 exon 1 methylation in probands from fzd4 associated fevr family of phenotypic heterogeneity
topic familial exudative vitreoretinopathy (FEVR)
the receptor frizzled-4 (FZD4)
phenotypic heterogeneity
DNA methylation
epigenetics
url https://www.frontiersin.org/articles/10.3389/fmed.2022.976520/full
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