An inhibitory effect of cytokine-induced neutrophil chemoattractant on corticotropin-releasing factor-induced increase in locomotor activity.
To investigate whether cytokine-induced neutrophil chemoattractant (CINC) has an influence on corticotropin-releasing factor (CRF) in the central nervous system, the effects of intracerebroventricular (i.c.v.) injection of CINC on CRF-induced behavior were examined. Intracerebroventricular CRF injection produced an increase in locomotor activity, which was significantly reduced by i.c.v. injection of CINC. The intravenous injection of CINC did not alter CRF-induced locomotor hyperactivity. These results suggested that CINC has a functional antagonistic action on the response to CRF and may attenuate stress responses.
Terawaki
K
K
Kampo and Pharmacognosy Laboratory, Tsumura & Co., 3586 Yoshiwara, Ami-machi, Inashiki-gun, Ibaraki 300-1192, Japan. terawaki_kiyoshi@mail.tsumura.co.jp
Koike
K
K
Yuzurihara
M
M
Kurauchi
K
K
Ishige
A
A
Sasaki
H
H
Murakami
K
K
Inoue
M
M
D000818:Animals; D019743:Chemokines, CXC; D002630:Chemotactic Factors / Q000008:administration & dosage / Q000494:pharmacology*; D003346:Corticotropin-Releasing Hormone / Q000494:pharmacology*; D006133:Growth Substances / Q000008:administration & dosage / Q000494:pharmacology*; D007276:Injections, Intraventricular; D036341:Intercellular Signaling Peptides and Proteins; D008297:Male; D009043:Motor Activity / Q000187:drug effects*; D051381:Rats; D017207:Rats, Sprague-Dawley
D019743:Chemokines, CXC; D002630:Chemotactic Factors; D006133:Growth Substances; D036341:Intercellular Signaling Peptides and Proteins; D003346:Corticotropin-Releasing Hormone