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Título: | Novel indanone derivatives as MAO B/H3R dual-targeting ligands for treatment of Parkinson's disease |
Autor: | Affini, A.; Hagenow, S.; Zivkovic, A.; Marco-Contelles, José CSIC ORCID; Stark, H. | Palabras clave: | Neurotransmitter dysregulation Parkinson's disease Monoamine oxidase inhibitor Multi-targeting Histamine H3 receptor antagonist Neurodegenerative diseases |
Fecha de publicación: | 2018 | Editor: | Elsevier | Citación: | European Journal of Medicinal Chemistry 148: 487-497 (2018) | Resumen: | The design of multi-targeting ligands was developed in the last decades as an innovative therapeutic concept for Parkinson's disease (PD) and other neurodegenerative disorders. As the monoamine oxidase B (MAO B) and the histamine H receptor (HR) are promising targets for dopaminergic regulation, we synthetized dual-targeting ligands (DTLs) as non-dopaminergic receptor approach for the treatment of PD. Three series of compounds were developed by attaching the HR pharmacophore to indanone-related MAO B motifs, leading to development of MAO B/HR DTLs. Among synthesized indanone DTLs, compounds bearing the 2-benzylidene-1-indanone core structure showed MAO B preferring inhibition capabilities along with nanomolar hHR affinity. Substitution of C5 and C6 position of the 2-benzylidene-1-indanones with lipophilic substituents revealed three promising candidates exhibiting inhibitory potencies for MAO B with IC values ranging from 1931 nM to 276 nM and high affinities at hHR (K < 50 nM). Compound 3f ((E)-5-((4-bromobenzyl)oxy)-2-(4-(3-(piperidin-1-yl)propoxy)benzylidene)-2,3-dihydro-1H-inden-1-one, MAO B IC = 276 nM, hHR K = 6.5 nM) showed highest preference for MAO B over MAO A (SI > 36). Interestingly, IC determinations after preincubation of enzyme and DTLs revealed also nanomolar MAO B potency for 3e (MAO B IC = 232 nM), a structural isomer of 3f, and 3d (MAO B IC = 541 nM), suggesting time-dependent inhibition modes. Reversibility of inhibition for all three compounds were confirmed by dilution studies in excess of substrate. Thus, indanone-substituted derivatives are promising lead structures for the design of MAO B/hHR DTLs as novel therapeutic approach of PD therapy. | URI: | http://hdl.handle.net/10261/166412 | DOI: | 10.1016/j.ejmech.2018.02.015 | Identificadores: | doi: 10.1016/j.ejmech.2018.02.015 issn: 0223-5234 e-issn: 1768-3254 |
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