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首页> 外文期刊>Zoological Science >Targeted Ablation of Pancreatic beta Cells in Medaka
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Targeted Ablation of Pancreatic beta Cells in Medaka

机译:麦卡卡胰腺β细胞的靶向消融

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摘要

The pancreas plays important roles in the regulation of blood glucose, and is a well-studied organ in mammals because its dysfunction causes serious disorders, such as diabetes mellitus. However, mammals have the limited capacity for tissue regeneration in their organs, including pancreas. Fish may be an attractive model for regeneration studies, as fish exhibit a greater capacity for regeneration than do mammals. To elucidate the regenerative capacity of pancreatic beta cells in medaka, we generated transgenic lines, in which beta cells can be specifically ablated using the nitroreductase (NTR)/metronidazole (Mtz) system. We examined beta-cell regeneration at embryonic-larval stages after specific ablation of beta cells, and found that medaka rapidly regenerate beta cells. Furthermore, we found that teleost-specific secondary islet have a unique feature in that their size increases in response to beta-cell ablation in principal islets.
机译:胰腺在血糖调节中起重要作用,并且是哺乳动物的良好研究的器官,因为它的功能障碍导致严重的疾病,例如糖尿病。 然而,哺乳动物在其器官中具有有限的组织再生能力,包括胰腺。 鱼类可能是一种有吸引力的再生研究模型,因为鱼表现出比哺乳动物更大的再生能力。 为了阐明Medaka的胰腺β细胞的再生能力,我们产生的转基因系,其中可以使用硝化酶(NTR)/甲硝唑(MTZ)系统特异性消除β细胞。 在特异性烧蚀β细胞后,我们在胚胎幼虫阶段检查了β细胞再生,发现Medaka快速再生β细胞。 此外,我们发现紧邻特定的次级胰岛具有独特的特征,因为它们的大小响应于主体胰岛中的β-电池消融而增加。

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