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Serotonin Promotes Serum Albumin Interaction With The Monomeric Amyloid Β Peptide, Ekaterina A. Litus, Alexei S. Kazakov, Eugenia I. Deryusheva, Ekaterina L. Nemashkalova, Marina P. Shevelyova, Aliya A. Nazipova, Maria E. Permyakova, Elena V. Raznikova, Vladimir N. Uversky, Sergei E. Permyakov

Molecular Medicine Faculty Publications

Prevention of amyloid β peptide (Aβ) deposition via facilitation of Aβ binding to its natural depot, human serum albumin (HSA), is a promising approach to preclude Alzheimer’s disease (AD) onset and progression. Previously, we demonstrated the ability of natural HSA ligands, fatty acids, to improve the affinity of this protein to monomeric Aβ by a factor of 3 (BBRC, 510(2), 248–253). Using plasmon resonance spectroscopy, we show here that another HSA ligand related to AD pathogenesis, serotonin (SRO), increases the affinity of the Aβ monomer to HSA by a factor of 7/17 for Aβ40/Aβ42, respectively. Meanwhile, the structurally homologous SRO …