Frontotemporal dementia and parkinsonism associated with the IVS1+1G→A mutation in progranulin: A clinicopathologic study

Bradley F Boeve, Matt Baker, Dennis W Dickson, Joseph E Parisi, Caterina Giannini, Keith Anthony Josephs, Michael Hutton, Stuart M. Pickering-Brown, Rosa V Rademakers, David Tang-Wai, Clifford R Jr. Jack, Kejal M Kantarci, Maria M. Shiung, Todd Golde, Glenn E. Smith, Yonas Endale Geda, David S Knopman, Ronald Carl Petersen

Research output: Contribution to journalArticle

82 Citations (Scopus)

Abstract

We previously reported a kindred with three cases of dementia, in which the proband exhibited features typical of frontotemporal dementia and parkinsonism (FTDP). An arginine insertion at codon 352 (insR352) in the presenilin-1 (PSEN1) gene was identified in the proband, but analyses in plasma and CSF suggested a mechanism of neurodegeneration not directly related to amyloid pathophysiology. The proband was followed with yearly evaluations of functional, clinical, neuropsychologic, neuropsychiatric and radiologic status, which showed relatively linear change over the initial 4 years of assessment. Upon the proband's death at age 63, neuropathologic examination revealed frontotemporal lobar degeneration (FTLD) with ubiquitin-positive inclusions (FTLD-U). We recently identified several kindreds with familial FTDP associated with mutations in the progranulin (PGRN) gene, particularly in those cases with neuronal intranuclear inclusions. Our proband was indeed found to have such inclusions, and PGRN analysis in this proband revealed the G to A mutation in the exon 1 splice donor site (IVS1+1G→A) which is predicted to destroy the 5′-splice site of exon 1 and remove the start methionine codon and hence completely block any PGRN protein from being generated. These findings suggest that the insR352 PSEN1 is not pathogenic, and the IVS1+1G→A mutation in PGRN causes FTDP associated with FTLD-U pathology and represents a new class of neurodegenerative disease - the 'hypoprogranulinopathies'.

Original languageEnglish (US)
Pages (from-to)3103-3114
Number of pages12
JournalBrain
Volume129
Issue number11
DOIs
StatePublished - Nov 2006

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Frontotemporal Dementia
Frontotemporal Lobar Degeneration
Presenilin-1
RNA Splice Sites
Mutation
Dementia
Exons
Intranuclear Inclusion Bodies
Initiator Codon
Parkinsonian Disorders
Amyloid
Codon
Neurodegenerative Diseases
Methionine
Genes
Arginine
Pathology
Proteins

Keywords

  • Frontotemporal dementia
  • Neurodegenerative disease
  • Neurogenetics
  • Presenilin
  • Progranulin

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Frontotemporal dementia and parkinsonism associated with the IVS1+1G→A mutation in progranulin : A clinicopathologic study. / Boeve, Bradley F; Baker, Matt; Dickson, Dennis W; Parisi, Joseph E; Giannini, Caterina; Josephs, Keith Anthony; Hutton, Michael; Pickering-Brown, Stuart M.; Rademakers, Rosa V; Tang-Wai, David; Jack, Clifford R Jr.; Kantarci, Kejal M; Shiung, Maria M.; Golde, Todd; Smith, Glenn E.; Geda, Yonas Endale; Knopman, David S; Petersen, Ronald Carl.

In: Brain, Vol. 129, No. 11, 11.2006, p. 3103-3114.

Research output: Contribution to journalArticle

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abstract = "We previously reported a kindred with three cases of dementia, in which the proband exhibited features typical of frontotemporal dementia and parkinsonism (FTDP). An arginine insertion at codon 352 (insR352) in the presenilin-1 (PSEN1) gene was identified in the proband, but analyses in plasma and CSF suggested a mechanism of neurodegeneration not directly related to amyloid pathophysiology. The proband was followed with yearly evaluations of functional, clinical, neuropsychologic, neuropsychiatric and radiologic status, which showed relatively linear change over the initial 4 years of assessment. Upon the proband's death at age 63, neuropathologic examination revealed frontotemporal lobar degeneration (FTLD) with ubiquitin-positive inclusions (FTLD-U). We recently identified several kindreds with familial FTDP associated with mutations in the progranulin (PGRN) gene, particularly in those cases with neuronal intranuclear inclusions. Our proband was indeed found to have such inclusions, and PGRN analysis in this proband revealed the G to A mutation in the exon 1 splice donor site (IVS1+1G→A) which is predicted to destroy the 5′-splice site of exon 1 and remove the start methionine codon and hence completely block any PGRN protein from being generated. These findings suggest that the insR352 PSEN1 is not pathogenic, and the IVS1+1G→A mutation in PGRN causes FTDP associated with FTLD-U pathology and represents a new class of neurodegenerative disease - the 'hypoprogranulinopathies'.",
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AU - Parisi, Joseph E

AU - Giannini, Caterina

AU - Josephs, Keith Anthony

AU - Hutton, Michael

AU - Pickering-Brown, Stuart M.

AU - Rademakers, Rosa V

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AU - Jack, Clifford R Jr.

AU - Kantarci, Kejal M

AU - Shiung, Maria M.

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N2 - We previously reported a kindred with three cases of dementia, in which the proband exhibited features typical of frontotemporal dementia and parkinsonism (FTDP). An arginine insertion at codon 352 (insR352) in the presenilin-1 (PSEN1) gene was identified in the proband, but analyses in plasma and CSF suggested a mechanism of neurodegeneration not directly related to amyloid pathophysiology. The proband was followed with yearly evaluations of functional, clinical, neuropsychologic, neuropsychiatric and radiologic status, which showed relatively linear change over the initial 4 years of assessment. Upon the proband's death at age 63, neuropathologic examination revealed frontotemporal lobar degeneration (FTLD) with ubiquitin-positive inclusions (FTLD-U). We recently identified several kindreds with familial FTDP associated with mutations in the progranulin (PGRN) gene, particularly in those cases with neuronal intranuclear inclusions. Our proband was indeed found to have such inclusions, and PGRN analysis in this proband revealed the G to A mutation in the exon 1 splice donor site (IVS1+1G→A) which is predicted to destroy the 5′-splice site of exon 1 and remove the start methionine codon and hence completely block any PGRN protein from being generated. These findings suggest that the insR352 PSEN1 is not pathogenic, and the IVS1+1G→A mutation in PGRN causes FTDP associated with FTLD-U pathology and represents a new class of neurodegenerative disease - the 'hypoprogranulinopathies'.

AB - We previously reported a kindred with three cases of dementia, in which the proband exhibited features typical of frontotemporal dementia and parkinsonism (FTDP). An arginine insertion at codon 352 (insR352) in the presenilin-1 (PSEN1) gene was identified in the proband, but analyses in plasma and CSF suggested a mechanism of neurodegeneration not directly related to amyloid pathophysiology. The proband was followed with yearly evaluations of functional, clinical, neuropsychologic, neuropsychiatric and radiologic status, which showed relatively linear change over the initial 4 years of assessment. Upon the proband's death at age 63, neuropathologic examination revealed frontotemporal lobar degeneration (FTLD) with ubiquitin-positive inclusions (FTLD-U). We recently identified several kindreds with familial FTDP associated with mutations in the progranulin (PGRN) gene, particularly in those cases with neuronal intranuclear inclusions. Our proband was indeed found to have such inclusions, and PGRN analysis in this proband revealed the G to A mutation in the exon 1 splice donor site (IVS1+1G→A) which is predicted to destroy the 5′-splice site of exon 1 and remove the start methionine codon and hence completely block any PGRN protein from being generated. These findings suggest that the insR352 PSEN1 is not pathogenic, and the IVS1+1G→A mutation in PGRN causes FTDP associated with FTLD-U pathology and represents a new class of neurodegenerative disease - the 'hypoprogranulinopathies'.

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