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首页> 外文期刊>Cell and Tissue Research >Functional dissimilarity of melanomacrophage centres in the liver and spleen from females of the teleost fish Prochilodus argenteus
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Functional dissimilarity of melanomacrophage centres in the liver and spleen from females of the teleost fish Prochilodus argenteus

机译：硬骨鱼类Prochilodus argenteus雌性动物的肝脏和脾脏中黑色素巨噬细胞中心的功能差异

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摘要

Melanomacrophage centres (MMCs) are formed by macrophage aggregates containing pigments such as hemosiderin, melanin and lipofuscin. MMCs are found in animals such as reptiles, amphibians and, mainly, fishes, in organs such as the kidney, spleen, thymus and liver. In teleost fish, several functions have been attributed to MMCs, including the capture and storage of cations, the phagocytosis of cellular debris and immunological reactions. As the use of MMCs has been suggested as a tool for the assessment of environmental impacts, our aim has been to describe the various metabolic processes performed by MMCs in diverse organs (liver and spleen) by using the teleost Prochilodus argenteus as an animal model. MMCs from the liver and spleen were assessed by histochemistry, transmission electron microscopy, scanning electron microscopy, X-ray microanalysis techniques and biochemical assay for N-acetylglucosaminidase activity. The data showed metabolic differences in MMCs between the liver and spleen of P. argenteus in their morphometric characteristics and biochemical and elemental composition. The implications of these findings are discussed, focusing on their role in organ metabolism.
机译：黑色素巨噬细胞中心（MMC）是由含有色素（如铁血黄素，黑色素和脂褐素）的巨噬细胞聚集体形成的。 MMCs存在于诸如爬行动物，两栖动物等动物中，主要是鱼类，存在于肾脏，脾脏，胸腺和肝脏等器官中。在硬骨鱼类中，MMC具有几种功能，包括阳离子的捕获和储存，细胞碎片的吞噬作用和免疫反应。由于已建议使用MMC作为评估环境影响的工具，因此我们的目标是通过使用硬骨的Prochilodus argenteus作为动物模型来描述MMC在不同器官（肝脏和脾脏）中执行的各种代谢过程。通过组织化学，透射电子显微镜，扫描电子显微镜，X射线显微分析技术和生化测定来评估来自肝脏和脾脏的MMC的N-乙酰氨基葡萄糖苷酶活性。数据显示，在银和丙肝之间，MMCs在形态特征，生化和元素组成方面存在代谢差异。讨论了这些发现的含义，重点是它们在器官代谢中的作用。

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