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Zeitschriftenartikel

Selection of RNA Aptamers to the Alzheimer's Disease Amyloid Peptide

MPG-Autoren

Lurz,  Rudi
Max Planck Society;

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Zitation

Ylera, F., Lurz, R., Erdmann, V. A., & Fürste, J. P. (2002). Selection of RNA Aptamers to the Alzheimer's Disease Amyloid Peptide. Biochemical and Biophysical Research Communications, 290(5), 1583-1588.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0010-8C4C-1
Zusammenfassung
Alzheimer's disease is correlated with the deposition of amyloid peptides in the brain of the patients. The amyloid is thus a major target in the search for novel diagnostic and therapeutic approaches. The present work employs in vitro selection to develop new tools for the study of the Alzheimer's disease. The selection strategy enables the design of specific nucleic acids (aptamers) against virtually any target molecule. High-affinity RNA aptamers against the A4(1–40) were isolated from a combinatorial library of ~1015 different molecules. The apparent dissociation constants Kd of these aptamers are 29–48 nM. The binding of the RNA to the amyloid fibrils was confirmed by electron microscopy. The chemical synthesis of these nucleic acids enables tailor-made modifications. By introduction of specific reporter groups these RNAs can become suitable tools for analytical and diagnostic purposes. Thus, this study may introduce a new approach for diagnosis of the Alzheimer's disease.