Title : Selective inhibition of human acetylcholinesterase by xanthine derivatives: in vitro inhibition and molecular modeling investigations.

Pub. Date : 2013 Aug 1

PMID : 23791077






4 Functional Relationships(s)
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1 The commonly used beverage and psychostimulant caffeine is known to inhibit human acetylcholinesterase enzyme. Caffeine acetylcholinesterase (Cartwright blood group) Homo sapiens
2 Molecular modeling investigations indicate that caffeine binds primarily in the catalytic site (Ser203, Glu334 and His447) region of hAChE whereas pentoxifylline and propentofylline are able to bind to both the catalytic site and peripheral anionic site due to their increased bulk/size, thereby exhibiting superior AChE inhibition relative to caffeine. Caffeine acetylcholinesterase (Cartwright blood group) Homo sapiens
3 Molecular modeling investigations indicate that caffeine binds primarily in the catalytic site (Ser203, Glu334 and His447) region of hAChE whereas pentoxifylline and propentofylline are able to bind to both the catalytic site and peripheral anionic site due to their increased bulk/size, thereby exhibiting superior AChE inhibition relative to caffeine. Caffeine acetylcholinesterase (Cartwright blood group) Homo sapiens
4 In summary, our study has important implications in the development of novel caffeine derivatives as selective AChE inhibitors with potential application as cognitive enhancers and to treat various forms of dementia. Caffeine acetylcholinesterase (Cartwright blood group) Homo sapiens