C26:0-Carnitine Is a New Biomarker for X-Linked Adrenoleukodystrophy in Mice and Man.
PLoS One
; 11(4): e0154597, 2016.
Article
en En
| MEDLINE
| ID: mdl-27124591
ABSTRACT
X-linked adrenoleukodystrophy (ALD), a progressive neurodegenerative disease, is caused by mutations in ABCD1 and characterized by very-long-chain fatty acids (VLCFA) accumulation. Virtually all males develop progressive myelopathy (AMN). A subset of patients, however, develops a fatal cerebral demyelinating disease (cerebral ALD). Hematopoietic stem cell transplantation is curative for cerebral ALD provided the procedure is performed in an early stage of the disease. Unfortunately, this narrow therapeutic window is often missed. Therefore, an increasing number of newborn screening programs are including ALD. To identify new biomarkers for ALD, we developed an Abcd1 knockout mouse with enhanced VLCFA synthesis either ubiquitous or restricted to oligodendrocytes. Biochemical analysis revealed VLCFA accumulation in different lipid classes and acylcarnitines. Both C260-lysoPC and C260-carnitine were highly elevated in brain, spinal cord, but also in bloodspots. We extended the analysis to patients and confirmed that C260-carnitine is also elevated in bloodspots from ALD patients. We anticipate that validation of C260-carnitine for the diagnosis of ALD in newborn bloodspots may lead to a faster inclusion of ALD in newborn screening programs in countries that already screen for other inborn errors of metabolism.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Acetiltransferasas
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Lisofosfatidilcolinas
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Carnitina
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Transportadoras de Casetes de Unión a ATP
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Adrenoleucodistrofia
Tipo de estudio:
Diagnostic_studies
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Prognostic_studies
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Screening_studies
Límite:
Animals
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Humans
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Male
Idioma:
En
Año:
2016
Tipo del documento:
Article