Title : Inhibition of spinal ERK1/2-c-JUN signaling pathway counteracts the development of low doses morphine-induced hyperalgesia.

Pub. Date : 2015 Oct 5

PMID : 26165762






5 Functional Relationships(s)
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1 The present study was designed to determine whether low dose morphine treatment in mice could influence the spinal activity of ERK. Morphine mitogen-activated protein kinase 1 Mus musculus
2 The data showed that morphine (1 microg/kg) induced a marked increase in ERK phosphorylation. Morphine mitogen-activated protein kinase 1 Mus musculus
3 Intrathecal pre-treatment with a selective mitogen-activated and extracellular signal-regulated kinase (MEK) inhibitor PD98059, attenuated morphine-associated thermal hyperalgesia. Morphine mitogen-activated protein kinase 1 Mus musculus
4 Morphine exposure increased phosphorylation of c-JUN, that was prevented by the inhibition of ERK pathway. Morphine mitogen-activated protein kinase 1 Mus musculus
5 These data suggest that ERK contributes to the morphine-induced hyperalgesia by regulating the activation of c-JUN. Morphine mitogen-activated protein kinase 1 Mus musculus