Zaccone G, Tagliafierro G, Fasulo S, Contini A, Ainis L, Ricca M B
Department of Animal Biology and Marine Ecology, Messina University, Italy.
Histochemistry. 1990;93(4):355-7. doi: 10.1007/BF00315850.
The present immunocytochemical study concerns the distribution of serotonin in the epidermis of three species of teleost fish. Serotonin-like immunoreactivity was found in the club cells of Heteropneustes fossilis and Carapus acus but not in those from the sea eel Conger conger. This study is the first immunocytochemical identification of serotonin in the club cells of teleost epidermis. By comparing data from the literature (Zaccone et al. 1986, 1987, 1988) regarding the occurrence of serotonin and GRP/bombesin in the exocrine sacciform gland cells of piscine skin, it is worthy mentioning here that the serotonin contained in the club cells of the species studied may have the ability to affect the pheromonal or other possible functions of these cells. The presence of serotonin in these systems has been correlated with the capacity of the exocrine glands of fish skin to secrete, ectopically, amine messengers in contrast to those produced eutopically i.e. in the neuron-paraneuron system in some vertebrates (Fujita et al. 1988).
本免疫细胞化学研究关注三种硬骨鱼表皮中5-羟色胺的分布情况。在印度囊鳃鲇和短臂拟海鳝的棒状细胞中发现了5-羟色胺样免疫反应性，但在康吉鳗的棒状细胞中未发现。本研究是首次对硬骨鱼表皮棒状细胞中的5-羟色胺进行免疫细胞化学鉴定。通过比较文献（扎科内等人，1986年、1987年、1988年）中关于鱼类皮肤外分泌囊状腺细胞中5-羟色胺和胃泌素释放肽/蛙皮素的出现情况的数据，在此值得一提的是，所研究物种的棒状细胞中所含的5-羟色胺可能具有影响这些细胞的信息素或其他可能功能的能力。这些系统中5-羟色胺的存在与鱼类皮肤外分泌腺异位分泌胺类信使的能力相关，这与某些脊椎动物中正常分泌（即在神经-副神经元系统中）产生的胺类信使形成对比（藤田等人，1988年）。
