Altered cholesterol metabolism in APP695-transfected neuroblastoma cells
2007 | journal article. A publication with affiliation to the University of Göttingen.
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Altered cholesterol metabolism in APP695-transfected neuroblastoma cells
Wirths, O.; Thelen, K. M.; Luetjohann, D.; Falkai, P. & Bayer, T. A. (2007)
Brain Research, 1152 pp. 209-214. DOI: https://doi.org/10.1016/j.brainres.2007.03.029
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Details
- Authors
- Wirths, Oliver; Thelen, Karin M.; Luetjohann, Dieter; Falkai, Peter; Bayer, Thomas A.
- Abstract
- Cholesterol has been implicated to play an important role in the generation of A beta peptides, which are the main component of beta-amyloid plaques in the brains of patients suffering from Alzheimer's disease (AD). Epidemiological data implicate that lowering cholesterol levels has beneficial effects on the extent of beta-amyloid pathology. Thus therapeutic intervention using cholesterol lowering drugs like statins seems to be a promising approach. A couple of studies, in vitro or in vivo by the use of AD transgenic mouse models, focused on the manipulation of cholesterol levels and the resulting effects on A beta generation. In contrast, there is not much known about the effect of the amyloid precursor protein (APP) on cholesterol levels. In the present report, we transfected human neuroblastoma cells with human APP695 and compared cellular cholesterol levels with the respective levels in Mock-transfected control cells. Furthermore, we determined the levels of diverse cholesterol precursors and metabolites using gas chromatography-mass spectrometry (GC-MS). Significant differences in the levels of the respective cholesterol precursors were observed, whereas inhibition of gamma-secretase activity by the gamma-secretase inhibitor DAPT did not have a significant effect on cellular cholesterol metabolism. (c) 2007 Elsevier B.V. All rights reserved.
- Issue Date
- 2007
- Status
- published
- Publisher
- Elsevier Science Bv
- Journal
- Brain Research
- ISSN
- 0006-8993