title: The structure-inhibitory activity relationships study in a series of cyclooxygenase-2 inhibitors: a combined electronic-topological and neural networks approach.
abstract: Structure-activity relationships study was performed for a few series of cyclooxygenase-2 (COX-2) inhibitors by using the Electronic-Topological Method combined with Neural Networks (ETM-NN). Specific molecular fragments were found for active compounds ('activity features') from both series by the ETM application. After this, a system of prognosis was developed as the result of training Kohonen's self-organizing maps (SOM) by the fragments. From the detailed analysis of all compounds under study, requirements necessary for a compound to be COX-2 inhibitor were formulated. The analysis showed that any requirements violation for a molecule resulted in a considerable decrease or even complete loss of its activity. The found activity features identified correctly different marketed drugs and new compounds that had passed pre-clinical and clinical trials; this fact confirms the workability of the system developed for the COX-2 inhibitory activity prediction.
authors.affiliation: Gebze Institute of Technology, PK-141, Gebze/Kocaeli, 41400, Turkey. dimoglo@gyte.edu.tr.
authors.forename: A
authors.initials: A
authors.lastname: Dimoglo
authors.forename: V
authors.initials: V
authors.lastname: Kovalishyn
authors.forename: N
authors.initials: N
authors.lastname: Shvets
authors.forename: V
authors.initials: V
authors.lastname: Ahsen
mesh_terms: D002626:Chemistry, Pharmaceutical; D002986:Clinical Trials as Topic; D052246:Cyclooxygenase 2 Inhibitors / Q000737:chemistry / Q000494:pharmacology*; D004353:Drug Evaluation, Preclinical; D004581:Electronics; D016571:Neural Networks, Computer; D013329:Structure-Activity Relationship
chemical_list: D052246:Cyclooxygenase 2 Inhibitors