作者:Andrea Cappelli、Monica Manini、Marco Paolino、Andrea Gallelli、Maurizio Anzini、Laura Mennuni、Marta Del Cadia、Francesca De Rienzo、M. Cristina Menziani、Salvatore Vomero
DOI:10.1021/ml2000388
日期:2011.8.11
The serotonin 5-HT3 receptor is a ligand-gated ion channel, which by virtue of its pentameric architecture, can be considered to be an intriguing example of intrinsically multivalent biological receptors. This paper describes a general design approach to the study of multivalency in this multimeric ion channel. Bivalent ligands for 5-HT3 receptor have been designed by linking an arylpiperazine moiety to probes showing. different functional features. Both homobivalent and heterobivalent ligands have shown 5-HT3 receptor affinity in the nanomolar range, providing evidence for the viability of our design approach. Moreover, the high affinity shown by homobivalent ligands suggests that bivalency is a promising approach in 5-HT3 receptor modulation and provides the rational basis for applying the concepts of multivalency to the study of 5-HT3 receptor function.