TY  - JOUR
AU  - Akoury, E.
AU  - Gajda, M. J.
AU  - Pickhardt, M.
AU  - Biernat, J.
AU  - Pornsuwan, S.
AU  - Griesinger, Ch.
AU  - Mandelkow, E.
AU  - Zweckstetter, M.
AU  - DESY
TI  - Inhibition of tau filament formation by conformational modulation
JO  - Journal of the American Chemical Society
VL  - 135
SN  - 0002-7863
CY  - Washington, DC
PB  - American Chemical Society
M1  - PHPPUBDB-26150
SP  - 2853-2862
PY  - 2013
AB  - Antiaggregation drugs play an important role in therapeutic approaches for Alzheimer's disease. Although a large number of small molecules that inhibit the aggregation of the tau protein have been identified, little is known about their mode of action. Here, we reveal the mechanism and the nature of tau species that are generated by interaction of tau with the organic compound pthalocyanine tetrasulfonate (PcTS). We demonstrate that PcTS interferes with tau filament formation by targeting the protein into soluble oligomers. A combination of NMR spectroscopy, electron paramagnetic resonance, and small-angle X-ray scattering reveals that the soluble tau oligomers contain a dynamic, noncooperatively stabilized core with a diameter of 30-40 nm that is distinct from the core of tau filaments. Our results suggest that specific modulation of the conformation of tau is a viable strategy for reduction of pathogenic tau deposits.
LB  - PUB:(DE-HGF)16
C6  - pmid:23360400
UR  - <Go to ISI:>//WOS:000315373000066
DO  - DOI:10.1021/ja312471h
UR  - https://bib-pubdb1.desy.de/record/148122
ER  -