GABAA receptor activity modulating piperine analogs: In vitro metabolic stability, metabolite identification, CYP450 reaction phenotyping, and protein binding
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Autor:innen
Zabela, Volha
Wimmer, Laurin
Mihovilovic D., Marko
Guillet, Fabrice
Belkacem, Bouaita
Shevchenko, Bénédicte
Hamburger, Matthias
Oufir, Mouhssin
Autor:in (Körperschaft)
Publikationsdatum
12/2017
Typ der Arbeit
Studiengang
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Journal of Chromatography B
Themenheft
DOI der Originalpublikation
Reihe / Serie
Reihennummer
Jahrgang / Band
1072
Ausgabe / Nummer
Seiten / Dauer
379-389
Patentnummer
Verlag / Herausgebende Institution
Elsevier
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
In a screening of natural products for allosteric modulators of GABAA receptors (γ-aminobutyric acid type A receptor), piperine was identified as a compound targeting a benzodiazepine-independent binding site. Given that piperine is also an activator of TRPV1 (transient receptor potential vanilloid type 1) receptors involved in pain signaling and thermoregulation, a series of piperine analogs were prepared in several cycles of structural optimization, with the aim of separating GABAA and TRPV1 activating properties. We here investigated the metabolism of piperine and selected analogs in view of further cycles of lead optimization. Metabolic stability of the compounds was evaluated by incubation with pooled human liver microsomes, and metabolites were analyzed by UHPLC-Q-TOF-MS. CYP450 isoenzymes involved in metabolism of compounds were identified by reaction phenotyping with Silensomes™. Unbound fraction in whole blood was determined by rapid equilibrium dialysis. Piperine was the metabolically most stable compound. Aliphatic hydroxylation, and N- and O-dealkylation were the major routes of oxidative metabolism. Piperine was exclusively metabolized by CYP1A2, whereas CYP2C9 contributed significantly in the oxidative metabolism of all analogs. Extensive binding to blood constituents was observed for all compounds.
Schlagwörter
GABA(A), In vitro metabolism, Piperine analogs, Silensomes, UHPLC-Q-TOF-MS
Fachgebiet (DDC)
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
1570-0232
1873-376X
1873-376X
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Ja
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Lizenz
Zitation
ZABELA, Volha, Timm HETTICH, Götz SCHLOTTERBECK, Laurin WIMMER, Marko MIHOVILOVIC D., Fabrice GUILLET, Bouaita BELKACEM, Bénédicte SHEVCHENKO, Matthias HAMBURGER und Mouhssin OUFIR, 2017. GABAA receptor activity modulating piperine analogs: In vitro metabolic stability, metabolite identification, CYP450 reaction phenotyping, and protein binding. Journal of Chromatography B. Dezember 2017. Bd. 1072, S. 379–389. DOI 10.1016/j.jchromb.2017.11.036. Verfügbar unter: http://hdl.handle.net/11654/26969