Screening of RNA molecules inhibiting human acetylcholinesterase by virtue of systematic evolution of ligands by exponential enrichment

To acquire the specific RNA aptamers inhibiting human red blood cell (RBC) acetylcholinesterase (AChE). Systematic evolution of ligands by exponential enrichment (SELEX) aptamer against human red blood cell membrane AChE was selected by microtiter plate method in vitro. The specifity binding to AChE...

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Veröffentlicht in:Acta pharmacologica Sinica 2003-07, Vol.24 (7), p.711-714
Hauptverfasser: Zhang, Xing-Mei, Shao, Ning-Sheng, Chi, Mu-Gen, Sun, Man-Ji
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container_title Acta pharmacologica Sinica
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creator Zhang, Xing-Mei
Shao, Ning-Sheng
Chi, Mu-Gen
Sun, Man-Ji
description To acquire the specific RNA aptamers inhibiting human red blood cell (RBC) acetylcholinesterase (AChE). Systematic evolution of ligands by exponential enrichment (SELEX) aptamer against human red blood cell membrane AChE was selected by microtiter plate method in vitro. The specifity binding to AChE was determined by gel mobility shift analysis. Microcolorispectrophotometric method was used to measure the activity of AChE. The aptamers to human RBC AChE were identified by 9 reiterative rounds. At the same concentration (2.25 micromol/L), the aptamers did not bind to the recombinant human butyrylcholinesterase (rhBChE) but specifically bound to human RBC AChE and inhibited the enzyme activity. It is an effective way to isolate the specific AChE inhibitor from the vast oligonucleotide combinatorial library by virtue of SELEX.
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subjects Acetylcholinesterase - metabolism
Binding Sites
Cholinesterase Inhibitors - isolation & purification
Cholinesterase Inhibitors - pharmacology
Combinatorial Chemistry Techniques
Erythrocyte Membrane - chemistry
Humans
Ligands
RNA - isolation & purification
RNA - pharmacology
RNA-Binding Proteins - metabolism
title Screening of RNA molecules inhibiting human acetylcholinesterase by virtue of systematic evolution of ligands by exponential enrichment
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