Rapid Diagnosis of 83 Patients with Niemann Pick Type C Disease and Related Cholesterol Transport Disorders by Cholestantriol Screening

Niemann Pick type C (NP-C) is a rare neurodegenerative disorder caused by an impairment of intracellular lipid transport. Due to the heterogeneous clinical phenotype and the lack of a reliable blood test, diagnosis and therapy are often delayed for years. In the cell, accumulating cholesterol leads...

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Main Authors: Janine Reunert, Manfred Fobker, Frank Kannenberg, Ingrid Du Chesne, Maria Plate, Judith Wellhausen, Stephan Rust, Thorsten Marquardt
Format: Article
Language:English
Published: Elsevier 2016-02-01
Series:EBioMedicine
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352396415302462
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author Janine Reunert
Manfred Fobker
Frank Kannenberg
Ingrid Du Chesne
Maria Plate
Judith Wellhausen
Stephan Rust
Thorsten Marquardt
author_facet Janine Reunert
Manfred Fobker
Frank Kannenberg
Ingrid Du Chesne
Maria Plate
Judith Wellhausen
Stephan Rust
Thorsten Marquardt
author_sort Janine Reunert
collection DOAJ
description Niemann Pick type C (NP-C) is a rare neurodegenerative disorder caused by an impairment of intracellular lipid transport. Due to the heterogeneous clinical phenotype and the lack of a reliable blood test, diagnosis and therapy are often delayed for years. In the cell, accumulating cholesterol leads to increased formation of oxysterols that can be used as a powerful screening parameter for NP-C. In a large scale study, we evaluated the oxysterol cholestane-3β,5α,6β-triol (c-triol) as potential biomarker for a rapid diagnosis of NP-C. Using GC/MS, c-triol has been analyzed in 1902 plasma samples of patients with the suspicion for NP-C. Diagnosis in patients with elevated oxysterols was confirmed by genetic analysis. 71 new NP-C patients (69 NP-C1 and two NP-C2) and 12 Niemann Pick type A/B patients were identified. 24 new mutations in NPC1, one new mutation in NPC2 and three new mutations in the SMPD1 gene were found. Cholestane-3β,5α,6β-triol was elevated in Niemann Pick type C1, type C2, type A/B and in CESD disease. No other study has ever identified so many NP-C patients, proving that c-triol is a rapid and reliable biomarker to detect patients with NP-C disease and related cholesterol transport disorders. It should replace the filipin test as the first-line diagnostic assay.
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spelling doaj.art-51d7b9d47036446b8f31492c218891962022-12-22T00:47:29ZengElsevierEBioMedicine2352-39642016-02-014C17017510.1016/j.ebiom.2015.12.018Rapid Diagnosis of 83 Patients with Niemann Pick Type C Disease and Related Cholesterol Transport Disorders by Cholestantriol ScreeningJanine Reunert0Manfred Fobker1Frank Kannenberg2Ingrid Du Chesne3Maria Plate4Judith Wellhausen5Stephan Rust6Thorsten Marquardt7Department of Pediatrics, University Hospital of Muenster, Albert-Schweitzer-Campus 1 Gebaeude A13, 48149 Muenster, GermanyCenter of Laboratory Medicine, University Hospital of Muenster, Albert-Schweitzer-Campus 1 Gebaeude A1, 48149 Muenster, GermanyCenter of Laboratory Medicine, University Hospital of Muenster, Albert-Schweitzer-Campus 1 Gebaeude A1, 48149 Muenster, GermanyDepartment of Pediatrics, University Hospital of Muenster, Albert-Schweitzer-Campus 1 Gebaeude A13, 48149 Muenster, GermanyDepartment of Pediatrics, University Hospital of Muenster, Albert-Schweitzer-Campus 1 Gebaeude A13, 48149 Muenster, GermanyDepartment of Pediatrics, University Hospital of Muenster, Albert-Schweitzer-Campus 1 Gebaeude A13, 48149 Muenster, GermanyDepartment of Pediatrics, University Hospital of Muenster, Albert-Schweitzer-Campus 1 Gebaeude A13, 48149 Muenster, GermanyDepartment of Pediatrics, University Hospital of Muenster, Albert-Schweitzer-Campus 1 Gebaeude A13, 48149 Muenster, GermanyNiemann Pick type C (NP-C) is a rare neurodegenerative disorder caused by an impairment of intracellular lipid transport. Due to the heterogeneous clinical phenotype and the lack of a reliable blood test, diagnosis and therapy are often delayed for years. In the cell, accumulating cholesterol leads to increased formation of oxysterols that can be used as a powerful screening parameter for NP-C. In a large scale study, we evaluated the oxysterol cholestane-3β,5α,6β-triol (c-triol) as potential biomarker for a rapid diagnosis of NP-C. Using GC/MS, c-triol has been analyzed in 1902 plasma samples of patients with the suspicion for NP-C. Diagnosis in patients with elevated oxysterols was confirmed by genetic analysis. 71 new NP-C patients (69 NP-C1 and two NP-C2) and 12 Niemann Pick type A/B patients were identified. 24 new mutations in NPC1, one new mutation in NPC2 and three new mutations in the SMPD1 gene were found. Cholestane-3β,5α,6β-triol was elevated in Niemann Pick type C1, type C2, type A/B and in CESD disease. No other study has ever identified so many NP-C patients, proving that c-triol is a rapid and reliable biomarker to detect patients with NP-C disease and related cholesterol transport disorders. It should replace the filipin test as the first-line diagnostic assay.http://www.sciencedirect.com/science/article/pii/S2352396415302462Niemann Pick type COxysterolsCholestantriolDiagnostic test
spellingShingle Janine Reunert
Manfred Fobker
Frank Kannenberg
Ingrid Du Chesne
Maria Plate
Judith Wellhausen
Stephan Rust
Thorsten Marquardt
Rapid Diagnosis of 83 Patients with Niemann Pick Type C Disease and Related Cholesterol Transport Disorders by Cholestantriol Screening
EBioMedicine
Niemann Pick type C
Oxysterols
Cholestantriol
Diagnostic test
title Rapid Diagnosis of 83 Patients with Niemann Pick Type C Disease and Related Cholesterol Transport Disorders by Cholestantriol Screening
title_full Rapid Diagnosis of 83 Patients with Niemann Pick Type C Disease and Related Cholesterol Transport Disorders by Cholestantriol Screening
title_fullStr Rapid Diagnosis of 83 Patients with Niemann Pick Type C Disease and Related Cholesterol Transport Disorders by Cholestantriol Screening
title_full_unstemmed Rapid Diagnosis of 83 Patients with Niemann Pick Type C Disease and Related Cholesterol Transport Disorders by Cholestantriol Screening
title_short Rapid Diagnosis of 83 Patients with Niemann Pick Type C Disease and Related Cholesterol Transport Disorders by Cholestantriol Screening
title_sort rapid diagnosis of 83 patients with niemann pick type c disease and related cholesterol transport disorders by cholestantriol screening
topic Niemann Pick type C
Oxysterols
Cholestantriol
Diagnostic test
url http://www.sciencedirect.com/science/article/pii/S2352396415302462
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