Article (Scientific journals)
Peroxisome Proliferator-Activated Receptor gamma induces a clearance mechanism for the amyloid-beta peptide.
Espuny Camacho, Ira Mercedes; Serneels, L; Spittaels, K et al.
2004In Journal of Neuroscience
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Abstract :
[en] We investigated whether peroxisome proliferator-activated receptor gamma (PPARgamma) could be involved in the modulation of the amyloid cascade causing Alzheimer's disease. Inducing expression or activating PPARgamma using synthetic agonists of the thiazolinedione family results in a dramatic decrease in the levels of the amyloid-beta (Abeta) peptide in the conditioned medium of neuronal and non-neuronal cells. PPARgamma does not affect expression or activity of any of the secretases involved in the generation of the Abeta peptide but induces a fast, cell-bound clearing mechanism responsible for the removal of the Abeta peptide from the medium. Although PPARgamma expression is generally low in the CNS, induction of PPARgamma expression during inflammation could be beneficial for inducing Abeta clearance. We confirm that the Abeta clearance mechanism can indeed be induced by PPARgamma activation in primary murine-mixed glia and cortical neuronal cultures. Our results suggest that PPARgamma-controlled mechanisms should be explored further as potential drug targets for Alzheimer's disease treatment.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Espuny Camacho, Ira Mercedes  ;  VIB, KU Leuven, 3000 Leuven, Belgium > Neuronal Cell Biology and Gene Transfer Laboratory, Center for Human Genetics
Serneels, L;  VIB, KU Leuven, 3000 Leuven, Belgium > Neuronal Cell Biology and Gene Transfer Laboratory, Center for Human Genetics
Spittaels, K;  Galapagos Genomics NV, 2800 Mechelen, Belgium
Merchiers, P;  Galapagos Genomics NV, 2800 Mechelen, Belgium
Dominguez, D;  VIB, KU Leuven, 3000 Leuven, Belgium > Neuronal Cell Biology and Gene Transfer Laboratory, Center for Human Genetics
De Strooper, B;  VIB, KU Leuven, 3000 Leuven, Belgium > Neuronal Cell Biology and Gene Transfer Laboratory, Center for Human Genetics
Language :
English
Title :
Peroxisome Proliferator-Activated Receptor gamma induces a clearance mechanism for the amyloid-beta peptide.
Publication date :
2004
Journal title :
Journal of Neuroscience
ISSN :
0270-6474
eISSN :
1529-2401
Publisher :
Society for Neuroscience, United States - District of Columbia
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 09 September 2019

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