期刊
JOURNAL OF FISH BIOLOGY
卷 66, 期 3, 页码 609-617出版社
WILEY
DOI: 10.1111/j.0022-1112.2005.00624.x
关键词
antibody synthesis; bovine lactoferrin; endocytosis; immunology; rainbow trout
Bovine lactoferrin (LF) was evaluated for its capacity to modulate the in vitro endocytosis (phagocytosis and pinocytosis) and antibody synthesis by head kidney cells of rainbow trout Oncorhynchus mykiss. Phagocytic activity and phagocytic index of head kidney macrophages, determined by measurement of ingested yeast, were influenced by bovine LF starting from the LF concentration of 1 and 0-1 mu g ml(-1), respectively. Endocytosis, determined by the evaluation of droplet uptake of neutral red dye solution, was significantly enhanced by 10 mu g ml(-1) of LF. In contrast, antibody synthesis by head kidney cells, evaluated by immunoenzymatic assay, from fish immunized against human-gamma-globulins (HGG) in vivo was not affected by bovine LF. Although these results showed that bovine LF had no effect on specific immunoglobulin production in vitro, an enhancement of the acquired immune response may be assumed in LF-treated fish in vivo, as observed in higher vertebrates. (c) 2005 The Fisheries Society of the British Isles.
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