A splice-site variant in FLVCR1 produces retinitis pigmentosa without posterior column ataxia

FLVCR1 (feline leukemia virus subgroup c receptor 1) is a transmembrane protein involved in the trafficking of intracellular heme. Homozygous variants in FLVCR1 have been described in association with a clinical syndrome of posterior column ataxia with retinitis pigmentosa (PCARP). Here, we describe...

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Principais autores: Yusuf, I, Shanks, M, Clouston, P, Maclaren, R
Formato: Journal article
Publicado em: Taylor and Francis 2017
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author Yusuf, I
Shanks, M
Clouston, P
Maclaren, R
author_facet Yusuf, I
Shanks, M
Clouston, P
Maclaren, R
author_sort Yusuf, I
collection OXFORD
description FLVCR1 (feline leukemia virus subgroup c receptor 1) is a transmembrane protein involved in the trafficking of intracellular heme. Homozygous variants in FLVCR1 have been described in association with a clinical syndrome of posterior column ataxia with retinitis pigmentosa (PCARP). Here, we describe a patient with non-syndromic retinitis pigmentosa homozygous for a splice-site variant in FLVCR1 (c.1092 + 5G>A) without evidence of posterior column ataxia or cerebellar degeneration. We suggest an association between intronic splice-site variants in FLVCR1 and the absence of posterior column degeneration and suggest a hypothesis to explain this observation. Should this association be proven, it would provide valuable prognostic information for patients. Retinal degeneration appears to be the sole clinical manifestation of this FLVCR1 variant; gene therapy approaches using an adeno-associated viral vector with sub-retinal delivery may therefore represent a therapeutic approach to halting retinal degeneration in this patient group.
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spelling oxford-uuid:59dd0d08-2c90-4f42-a89a-eceb299f46e82022-03-26T17:12:14ZA splice-site variant in FLVCR1 produces retinitis pigmentosa without posterior column ataxiaJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:59dd0d08-2c90-4f42-a89a-eceb299f46e8Symplectic Elements at OxfordTaylor and Francis2017Yusuf, IShanks, MClouston, PMaclaren, RFLVCR1 (feline leukemia virus subgroup c receptor 1) is a transmembrane protein involved in the trafficking of intracellular heme. Homozygous variants in FLVCR1 have been described in association with a clinical syndrome of posterior column ataxia with retinitis pigmentosa (PCARP). Here, we describe a patient with non-syndromic retinitis pigmentosa homozygous for a splice-site variant in FLVCR1 (c.1092 + 5G>A) without evidence of posterior column ataxia or cerebellar degeneration. We suggest an association between intronic splice-site variants in FLVCR1 and the absence of posterior column degeneration and suggest a hypothesis to explain this observation. Should this association be proven, it would provide valuable prognostic information for patients. Retinal degeneration appears to be the sole clinical manifestation of this FLVCR1 variant; gene therapy approaches using an adeno-associated viral vector with sub-retinal delivery may therefore represent a therapeutic approach to halting retinal degeneration in this patient group.
spellingShingle Yusuf, I
Shanks, M
Clouston, P
Maclaren, R
A splice-site variant in FLVCR1 produces retinitis pigmentosa without posterior column ataxia
title A splice-site variant in FLVCR1 produces retinitis pigmentosa without posterior column ataxia
title_full A splice-site variant in FLVCR1 produces retinitis pigmentosa without posterior column ataxia
title_fullStr A splice-site variant in FLVCR1 produces retinitis pigmentosa without posterior column ataxia
title_full_unstemmed A splice-site variant in FLVCR1 produces retinitis pigmentosa without posterior column ataxia
title_short A splice-site variant in FLVCR1 produces retinitis pigmentosa without posterior column ataxia
title_sort splice site variant in flvcr1 produces retinitis pigmentosa without posterior column ataxia
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