The role of NOTCH2NLC in Parkinson's disease : A clinical, neuroimaging, and pathological study
© 2022 European Academy of Neurology..
BACKGROUND AND PURPOSE: Recently, the pathogenic and intermediate GGC repeat expansion in NOTCH2NLC was detected in Parkinson's disease (PD). However, detailed clinical, neuroimaging, and pathological information of clinically diagnosed PD patients with pathogenic GGC repeat expansion in NOTCH2NLC remains scarce. Thus, we aimed to elucidate the clinical, neuroimaging, and pathological characteristics of PD patients carrying the pathogenic GGC repeat expansion in NOTCH2NLC.
METHODS: The NOTCH2NLC GGC repeat expansion was screened in 941 sporadic PD patients and 244 unrelated probands. Comprehensive assessments were performed in three PD patients with pathogenic GGC repeat expansion in NOTCH2NLC. The repeat expansion length was estimated using CRISPR/Cas9-based targeted long-read sequencing.
RESULTS: The three patients (two PD patients from Family 1 and one sporadic PD) carrying the pathogenic NOTCH2NLC expansion were reconfirmed with a diagnosis of clinically established PD. Although they lacked the typical neuronal intranuclear inclusion disease (NIID) magnetic resonance imaging (MRI) feature, the typical PD pattern of striatal dopamine transporter loss was detected. Notably, all three patients presented with systemic areflexia, and other secondary causes of polyneuropathy were excluded. Skin biopsy showed intranuclear inclusions and an absence of phosphorylated alpha-synuclein deposition in the skin nerve fibers of all three patients.
CONCLUSIONS: Although these clinically diagnosed PD patients with pathogenic GGC repeat expansion in NOTCH2NLC were hardly distinguishable from idiopathic PD based on clinical course and neuroimaging features, the pathological findings indicated that their phenotype was a PD phenocopy of NIID. Systemic areflexia may be an important and unique clinical clue suggesting further genetic testing and skin biopsy examination to confirm the diagnosis of NIID in patients presenting with a PD phenocopy.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:29 |
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| Enthalten in: |
European journal of neurology - 29(2022), 6 vom: 15. Juni, Seite 1610-1618 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Liu, Peng [VerfasserIn] |
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| Links: |
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| Themen: |
GGC repeat expansion |
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| Anmerkungen: |
Date Completed 09.05.2022 Date Revised 26.06.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/ene.15283 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM336794525 |
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| 100 | 1 | |a Liu, Peng |e verfasserin |4 aut | |
| 245 | 1 | 4 | |a The role of NOTCH2NLC in Parkinson's disease |b A clinical, neuroimaging, and pathological study |
| 264 | 1 | |c 2022 | |
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| 500 | |a Date Revised 26.06.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2022 European Academy of Neurology. | ||
| 520 | |a BACKGROUND AND PURPOSE: Recently, the pathogenic and intermediate GGC repeat expansion in NOTCH2NLC was detected in Parkinson's disease (PD). However, detailed clinical, neuroimaging, and pathological information of clinically diagnosed PD patients with pathogenic GGC repeat expansion in NOTCH2NLC remains scarce. Thus, we aimed to elucidate the clinical, neuroimaging, and pathological characteristics of PD patients carrying the pathogenic GGC repeat expansion in NOTCH2NLC | ||
| 520 | |a METHODS: The NOTCH2NLC GGC repeat expansion was screened in 941 sporadic PD patients and 244 unrelated probands. Comprehensive assessments were performed in three PD patients with pathogenic GGC repeat expansion in NOTCH2NLC. The repeat expansion length was estimated using CRISPR/Cas9-based targeted long-read sequencing | ||
| 520 | |a RESULTS: The three patients (two PD patients from Family 1 and one sporadic PD) carrying the pathogenic NOTCH2NLC expansion were reconfirmed with a diagnosis of clinically established PD. Although they lacked the typical neuronal intranuclear inclusion disease (NIID) magnetic resonance imaging (MRI) feature, the typical PD pattern of striatal dopamine transporter loss was detected. Notably, all three patients presented with systemic areflexia, and other secondary causes of polyneuropathy were excluded. Skin biopsy showed intranuclear inclusions and an absence of phosphorylated alpha-synuclein deposition in the skin nerve fibers of all three patients | ||
| 520 | |a CONCLUSIONS: Although these clinically diagnosed PD patients with pathogenic GGC repeat expansion in NOTCH2NLC were hardly distinguishable from idiopathic PD based on clinical course and neuroimaging features, the pathological findings indicated that their phenotype was a PD phenocopy of NIID. Systemic areflexia may be an important and unique clinical clue suggesting further genetic testing and skin biopsy examination to confirm the diagnosis of NIID in patients presenting with a PD phenocopy | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a GGC repeat expansion | |
| 650 | 4 | |a NOTCH2NLC gene | |
| 650 | 4 | |a Parkinson's disease | |
| 650 | 4 | |a neuronal intranuclear inclusion disease | |
| 650 | 4 | |a pathology | |
| 700 | 1 | |a Yang, Dehao |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Fan |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Shuqi |e verfasserin |4 aut | |
| 700 | 1 | |a Xie, Fei |e verfasserin |4 aut | |
| 700 | 1 | |a Luo, Yong |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Haotian |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Yueting |e verfasserin |4 aut | |
| 700 | 1 | |a Lin, Zhiru |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Lebo |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Xinhui |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Bo |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Sheng |e verfasserin |4 aut | |
| 700 | 1 | |a Ouyang, Zhiyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Cen, Zhidong |e verfasserin |4 aut | |
| 700 | 1 | |a Luo, Wei |e verfasserin |4 aut | |
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