TY - JOUR
T1 - Competitive Mirror Image Phage Display Derived Peptide Modulates Amyloid Beta Aggregation and Toxicity
AU - Rudolph, Stephan
AU - Klein, Antonia Nicole
AU - Tusche, Markus
AU - Schlosser, Christine
AU - Elfgen, Anne
AU - Brener, Oleksandr
AU - Teunissen, Charlotte
AU - Gremer, Lothar
AU - Funke, Susanne Aileen
AU - Kutzsche, Janine
AU - Willbold, Dieter
PY - 2016/2/1
Y1 - 2016/2/1
N2 - Alzheimer Ls disease is the most prominent type of dementia and currently no causative treatment is available. According to recent studies, oligomeric species of the amyloid beta (Aβ) peptide appear to be the most toxic Aβ assemblies. Aβ monomers, however, may be not toxic per se and may even have a neuroprotective role. Here we describe a competitive mirror image phage display procedure that allowed us to identify preferentially Aβ1-42 monomer binding and thereby stabilizing peptides, which destabilize and thereby eliminate toxic oligomer species. One of the peptides, called Mosd1 (monomer specific d-peptide 1), was characterized in more detail. Mosd1 abolished oligomers from a mixture of Aβ1-42 species, reduced Aβ1-42 toxicity in cell culture, and restored the physiological phenotype in neuronal cells stably transfected with the gene coding for human amyloid precursor protein.
AB - Alzheimer Ls disease is the most prominent type of dementia and currently no causative treatment is available. According to recent studies, oligomeric species of the amyloid beta (Aβ) peptide appear to be the most toxic Aβ assemblies. Aβ monomers, however, may be not toxic per se and may even have a neuroprotective role. Here we describe a competitive mirror image phage display procedure that allowed us to identify preferentially Aβ1-42 monomer binding and thereby stabilizing peptides, which destabilize and thereby eliminate toxic oligomer species. One of the peptides, called Mosd1 (monomer specific d-peptide 1), was characterized in more detail. Mosd1 abolished oligomers from a mixture of Aβ1-42 species, reduced Aβ1-42 toxicity in cell culture, and restored the physiological phenotype in neuronal cells stably transfected with the gene coding for human amyloid precursor protein.
UR - http://www.scopus.com/inward/record.url?scp=84958780886&partnerID=8YFLogxK
U2 - https://doi.org/10.1371/journal.pone.0147470
DO - https://doi.org/10.1371/journal.pone.0147470
M3 - Article
C2 - 26840229
SN - 1932-6203
VL - 11
JO - PLOS ONE
JF - PLOS ONE
IS - 2
M1 - e0147470
ER -