Kidney leucocytes of rainbow trout, Oncorhynchus mykiss, are activated by intraperitoneal injection of β-endorphin

The immunomodulatory effects of β-endorphin were studied by measurements of the production of superoxide anion, phagocytosis and chemotaxis of kidney phagocytic cells in rainbow trout, Oncorhynchus mykiss. The production of superoxide anion in phagocytic cells increased significantly in rainbow trou...

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Bibliographic Details
Published in:Veterinary immunology and immunopathology 1999-10, Vol.71 (2), p.89-97
Main Authors: Watanuki, N, Takahashi, A, Yasuda, A, Sakai, M
Format: Article
Language:English
Subjects:
Animals
beta -endorphins
beta-Endorphin - administration & dosage
beta-Endorphin - chemical synthesis
beta-Endorphin - immunology
beta-Endorphin - physiology
Brackish
Chemotaxis - immunology
Chemotaxis - physiology
ENDORFINAS
ENDORPHINE
ENDORPHINS
FAGOCITOS
Freshwater
Gas Chromatography-Mass Spectrometry
Injections, Intraperitoneal - veterinary
Kidney - cytology
Kidney - immunology
LEUCOCITOS
LEUCOCYTE
LEUKOCYTES
Leukocytes - immunology
Leukocytes - physiology
Macrophage
Marine
Microscopy, Phase-Contrast - veterinary
Nitroblue Tetrazolium - chemistry
ONCORHYNCHUS MYKISS
Oncorhynchus mykiss - immunology
PHAGOCYTE
PHAGOCYTES
Phagocytosis
Phagocytosis - immunology
Phagocytosis - physiology
Rainbow trout
Sequence Analysis, Protein
Superoxide
Superoxides - analysis
Superoxides - metabolism
β-endorphin
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Summary:The immunomodulatory effects of β-endorphin were studied by measurements of the production of superoxide anion, phagocytosis and chemotaxis of kidney phagocytic cells in rainbow trout, Oncorhynchus mykiss. The production of superoxide anion in phagocytic cells increased significantly in rainbow trout injected with chum salmon β-endorphin. The responses were dose-dependent. The phagocytosis and chemotaxis also significantly increased in kidney phagocytic cells of rainbow trout injected with β-endorphin. These results show that β-endorphin in rainbow trout activates the function of phagocytic cells in vivo.
ISSN:0165-2427
1873-2534
DOI:10.1016/S0165-2427(99)00089-6