Journal
FISHES
Volume 8, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/fishes8050270
Keywords
cantharidin; erythrocytes; fish cell lines; marine pathogen bacteria; gilthead seabream (Sparus aurata); aquaculture
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This study evaluated the potential therapeutic applications of cantharidin in fish, and found that it exhibited dose- and time-dependent cytotoxicity in fish erythrocytes and cell lines, as well as potent bactericidal activity against certain fish pathogenic bacteria. These results provide valuable information on the potential therapeutic applications of cantharidin in fish aquaculture.
Cantharidin, a toxic monoterpene secreted by blister beetles, has long been used in traditional Chinese and modern medicine for its unique properties. However, despite its widespread use, its effects on fish have not been studied. The aim of this study was to evaluate the potential therapeutic applications of cantharidin in fish by examining its antioxidant, hemagglutinating, hemolytic, and cytotoxic activities at different concentrations (0, 0.625, 1.25, 2.5, 5, and 10 mu g mL(-1)) in three different cell lines. In addition, the study explored the bactericidal and bacteriostatic properties of cantharidin against various fish pathogenic bacteria. The results revealed that there were no significant differences in antioxidant, hemagglutinating, or hemolytic activities between the different concentrations of cantharidin tested. However, the study found that cantharidin exhibited dose- and time-dependent cytotoxicity in seabream (Sparus aurata) erythrocytes and in SAF-1, PLHC-1, and Hela cell lines, resulting in morphological changes indicative of apoptosis. Interestingly, the highest dose of cantharidin tested demonstrated potent bactericidal activity against four marine fish opportunistic bacteria, including Vibrio harveyi, V. anguillarum, Photobacterium damselae, and Tenacibaculum maritimum, but no statistically significant changes in bacteriostatic activity were observed against any of the bacteria tested. Overall, these results provide valuable information on the potential therapeutic applications of cantharidin in fish aquaculture. Further research is needed to fully understand the mechanisms of action and to explore possible preventive uses of cantharidin in fish.
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