Induction of c-fos expression in the mouse brain associated with hyperalgesia induced by intrathecal injection of protein kinase C activator.

作者信息

Narita Minoru, Imai Satoshi, Oe Kousei, Narita Michiko, Kubota Chiharu, Yajima Yoshinori, Yamazaki Mitsuaki, Suzuki Tsutomu

机构信息

Department of Toxicology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, Japan.

出版信息

Brain Res. 2004 Jul 23;1015(1-2):189-93. doi: 10.1016/j.brainres.2004.04.027.

DOI:10.1016/j.brainres.2004.04.027

PMID:15223385

Abstract

Here, we found that a single intrathecal (i.t.) administration of a protein kinase C (PKC) activator, phorbol 12,13-dibutyrate (PDBu), induced pain-like behaviors in mice. Furthermore, i.t.-administered PDBu caused the increased c-fos-like immunoreactivity in the parafascicular nuclei (PF), amygdala and cingulate cortex (CG), but not hippocampus. These findings suggest that the stimulation of spinal PKC results in an enhancement of neuronal activity in the PF, amygdala and CG associated with hyperalgesia.

摘要