Arrestin-mediated activation of p38 MAPK: molecular mechanisms and behavioral consequences.

Autor: Chavkin C; Department of Pharmacology, University of Washington, Seattle, WA, 98195, USA, cchavkin@u.washington.edu., Schattauer SS, Levin JR
Jazyk: angličtina
Zdroj: Handbook of experimental pharmacology [Handb Exp Pharmacol] 2014; Vol. 219, pp. 281-92.
DOI: 10.1007/978-3-642-41199-1_14
Abstrakt: Studies of kappa opioid receptor signaling mechanisms during the last decade have demonstrated that agonist activation of the receptor results in Gβγ-dependent signaling and distinct arrestin-dependent signaling events. Gβγ-dependent signaling results in ion channel regulation causing neuronal inhibition, inhibition of transmitter release, and subsequent analgesic responses. In contrast, arrestin-dependent signaling events result in p38 MAPK activation and subsequent dysphoric and proaddictive behavioral responses. Resolution of these two branches of signaling cascades has enabled strategies designed to identify pathway-selective drugs that may have unique therapeutic utilities.
Databáze: MEDLINE