Cholesteryl Lignocerate Hydrolysis in Adrenoleukodystrophy
Cholesteryl Lignocerate Hydrolysis in Adrenoleukodystrophy
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肾上腺脑白质营养不良中的胆固醇木蜡酸酯水解
DOI:
10.1203/00006450-198001000-00006
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发表时间:
1980
影响因子:
3.6
通讯作者:
Arthur L Beaudet
中科院分区:
文献类型:
--
作者:
V. Michels;Arthur L Beaudet
Summary: Because cholesteryl esters with very long chain fatty acids accumulate in Schilder adrenoleukodystrophy, the ability of extracts of such fibroblasts to hydrolyze [14C]cholesteryl lignocerate was examined. Hydrolytic activity was detected at pH 3.0, and this activity was impaired by sulfhydryl inactivating agents. Cholesteryl lignocerate hydrolysis was deficient in cells from patients with cholesteryl ester storage disease or Wolman disease due to acid lipase deficiency, but was in the control range for adrenoleukodystrophy fibroblasts. This suggests that cholesteryl lignocerate hydrolysis can be carried out by acid lipase.Speculation: Deficiency of a specific lysosomal lipase is probably not the genetic defect in Schilder adrenoleukodystrophy. A defect in long chain fatty acid metabolism may be more likely.