P. Pavadai, S. Ramalingam, T. Panneerselvam
May 31, 2020
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Anti-Infective Agents
Abstract
With the goal of developing Alzheimer's disease therapeutics, we have designed and synthesized novel piperidone fused dipeptide (DPPS) derivatives possessing dual action such as acetylcholinesterase (AChE) and beta-amyloid peptide (Aβ) aggregation inhibition. Designed peptide was synthesized by solid phase peptide synthesis using FMOC chemistry protocol and characterized by mass spectroscopy. The amino acid sequence in peptide was analyzed by LC-MS-MS. In silico docking analysis was carried out using GLIDE software. The docking score using GLIDE was found to be -7.88 against AChE and -9.74 against BACE1 enzyme. In vitro enzyme inhibition assay was carried out for AChE enzyme and BACE1 enzyme. The IC50 values of AChE inhibition and BACE1 of DPPS were found to be 0.4796 μM/ml and 0.0154 μM/ml, respectively. The correlation of in silico and in vitro results showed that DPPS possessed a greater ability to inhibit BACE1 enzyme.