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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Inherit+Metab+Dis
2018 ; 41
(3
): 479-487
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Functional characterisation of peroxisomal ?-oxidation disorders in fibroblasts
using lipidomics
#MMPMID28849344
Herzog K
; Pras-Raves ML
; Ferdinandusse S
; Vervaart MAT
; Luyf ACM
; van Kampen AHC
; Wanders RJA
; Waterham HR
; Vaz FM
J Inherit Metab Dis
2018[May]; 41
(3
): 479-487
PMID28849344
show ga
Peroxisomes play an important role in a variety of metabolic pathways, including
the ?- and ?-oxidation of fatty acids, and the biosynthesis of ether
phospholipids. Single peroxisomal enzyme deficiencies (PEDs) are a group of
peroxisomal disorders in which either a peroxisomal matrix enzyme or a
peroxisomal membrane transporter protein is deficient. To investigate the
functional consequences of specific enzyme deficiencies on the lipidome, we
performed lipidomics using cultured skin fibroblasts with different defects in
the ?-oxidation of very long-chain fatty acids, including ABCD1- (ALD), acyl-CoA
oxidase 1 (ACOX1)-, D-bifunctional protein (DBP)-, and acyl-CoA binding domain
containing protein 5 (ACBD5)-deficient cell lines. Ultra-high performance liquid
chromatography coupled with high-resolution mass spectrometry revealed
characteristic changes in the phospholipid composition in fibroblasts with
different fatty acid ?-oxidation defects. Remarkably, we found that ether
phospholipids, including plasmalogens, were decreased. We defined specific
phospholipid ratios reflecting the different enzyme defects, which can be used to
discriminate the PED fibroblasts from healthy control cells.
|Case-Control Studies
[MESH]
|Cells, Cultured
[MESH]
|Chromatography, High Pressure Liquid/methods
[MESH]