A case of possibly pathogenic PSEN2 R62C mutation in a patient with probable early-onset Alzheimer’s dementia supported by structure prediction

A case of possibly pathogenic PSEN2 R62C mutation in a patient with probable early-onset Alzheimer’s dementia supported by structure prediction

Kyung Won Park,1,* Seong Soo An,1,2,* Eva Bagyinszky,2 SangYun Kim3 1Department of Neurology, Busan Metropolitan Dementia Center, Dong-A University College of Medicine, Busan, 2Department of BioNano Technology and Gachon BioNano Research Institute, Gachon University, 3Department of Neurology, Seoul...

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Autores principales: Park KW, An SS, Bagyinszky E, Kim SY
Formato: article
Lenguaje:EN
Publicado: Dove Medical Press 2017
Materias:
Alzheimer disease
PSEN2 mutation
dementia
PET
MRI
presenilin-2
Geriatrics
RC952-954.6
Acceso en línea:https://doaj.org/article/9096b7da0f0b43db877c60918721c041
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spelling oai:doaj.org-article:9096b7da0f0b43db877c60918721c0412021-12-02T09:07:35ZA case of possibly pathogenic PSEN2 R62C mutation in a patient with probable early-onset Alzheimer’s dementia supported by structure prediction1178-1998https://doaj.org/article/9096b7da0f0b43db877c60918721c0412017-02-01T00:00:00Zhttps://www.dovepress.com/a-case-of-possibly-pathogenic-psen2-r62c-mutation-in-a-patient-with-pr-peer-reviewed-article-CIAhttps://doaj.org/toc/1178-1998Kyung Won Park,1,* Seong Soo An,1,2,* Eva Bagyinszky,2 SangYun Kim3 1Department of Neurology, Busan Metropolitan Dementia Center, Dong-A University College of Medicine, Busan, 2Department of BioNano Technology and Gachon BioNano Research Institute, Gachon University, 3Department of Neurology, Seoul National University College of Medicine and Neurocognitive Behavior Center, Seoul National University Bundang Hospital, Seongnam, South Korea *These authors contributed equally to this work Abstract: A 49-year-old Korean male patient with dementia was diagnosed with probable early-onset Alzheimer’s disease (AD). He presented with memory problems, personality changes, and disorientation. His family history of dementia was probably negative, since no family member with dementia was found or mentioned. Mild cortical atrophy was observed upon magnetic resonance imaging analyses of his brain, and the single-photon emission computed tomography analysis revealed hypoperfusion in the frontal, temporal, and limbic lobes. The patient was tested for mutations in APP, PSEN1, PSEN2, PGRN, MAPT, and PRNP genes. Genetic analysis revealed R62C mutation in PSEN2 gene. PSEN2 R62C mutation was previously reported in European populations, including Dutch and Belgian families with AD. Herein, we present the first case report of PSEN2 R62C mutation in Asia. PolyPhen-2 and SIFT software analyses predicted this mutation as “possibly damaging”, suggesting its potential involvement with AD. In silico protein structural prediction analyses of PSEN2 R62 and C62 revealed two divergent structures, suggesting that large perturbations of R62C mutation might cause dysfunctions of PSEN2, which may alter the normal amyloid production. Keywords: Alzheimer’s disease, PSEN2 mutation, dementia, PET, MRI, presenilin-2Park KWAn SSBagyinszky EKim SYDove Medical PressarticleAlzheimer diseasePSEN2 mutationdementiaPETMRIpresenilin-2GeriatricsRC952-954.6ENClinical Interventions in Aging, Vol Volume 12, Pp 367-375 (2017)
institution DOAJ
collection DOAJ
language EN
topic Alzheimer disease
PSEN2 mutation
dementia
PET
MRI
presenilin-2
Geriatrics
RC952-954.6
spellingShingle Alzheimer disease
PSEN2 mutation
dementia
PET
MRI
presenilin-2
Geriatrics
RC952-954.6
Park KW
An SS
Bagyinszky E
Kim SY
A case of possibly pathogenic PSEN2 R62C mutation in a patient with probable early-onset Alzheimer’s dementia supported by structure prediction
description Kyung Won Park,1,* Seong Soo An,1,2,* Eva Bagyinszky,2 SangYun Kim3 1Department of Neurology, Busan Metropolitan Dementia Center, Dong-A University College of Medicine, Busan, 2Department of BioNano Technology and Gachon BioNano Research Institute, Gachon University, 3Department of Neurology, Seoul National University College of Medicine and Neurocognitive Behavior Center, Seoul National University Bundang Hospital, Seongnam, South Korea *These authors contributed equally to this work Abstract: A 49-year-old Korean male patient with dementia was diagnosed with probable early-onset Alzheimer’s disease (AD). He presented with memory problems, personality changes, and disorientation. His family history of dementia was probably negative, since no family member with dementia was found or mentioned. Mild cortical atrophy was observed upon magnetic resonance imaging analyses of his brain, and the single-photon emission computed tomography analysis revealed hypoperfusion in the frontal, temporal, and limbic lobes. The patient was tested for mutations in APP, PSEN1, PSEN2, PGRN, MAPT, and PRNP genes. Genetic analysis revealed R62C mutation in PSEN2 gene. PSEN2 R62C mutation was previously reported in European populations, including Dutch and Belgian families with AD. Herein, we present the first case report of PSEN2 R62C mutation in Asia. PolyPhen-2 and SIFT software analyses predicted this mutation as “possibly damaging”, suggesting its potential involvement with AD. In silico protein structural prediction analyses of PSEN2 R62 and C62 revealed two divergent structures, suggesting that large perturbations of R62C mutation might cause dysfunctions of PSEN2, which may alter the normal amyloid production. Keywords: Alzheimer’s disease, PSEN2 mutation, dementia, PET, MRI, presenilin-2
format article
author Park KW
An SS
Bagyinszky E
Kim SY
author_facet Park KW
An SS
Bagyinszky E
Kim SY
author_sort Park KW
title A case of possibly pathogenic PSEN2 R62C mutation in a patient with probable early-onset Alzheimer’s dementia supported by structure prediction
title_short A case of possibly pathogenic PSEN2 R62C mutation in a patient with probable early-onset Alzheimer’s dementia supported by structure prediction
title_full A case of possibly pathogenic PSEN2 R62C mutation in a patient with probable early-onset Alzheimer’s dementia supported by structure prediction
title_fullStr A case of possibly pathogenic PSEN2 R62C mutation in a patient with probable early-onset Alzheimer’s dementia supported by structure prediction
title_full_unstemmed A case of possibly pathogenic PSEN2 R62C mutation in a patient with probable early-onset Alzheimer’s dementia supported by structure prediction
title_sort case of possibly pathogenic psen2 r62c mutation in a patient with probable early-onset alzheimer’s dementia supported by structure prediction
publisher Dove Medical Press
publishDate 2017
url https://doaj.org/article/9096b7da0f0b43db877c60918721c041
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