果蝇衰老过程中的肠脑轴

IF 5.9 3区 农林科学 Q1 VETERINARY SCIENCES
Alexandra Le Bras
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引用次数: 0

摘要

内泌素是肠道肽,由肠内分泌细胞(EEC)分泌,对食物做出反应,刺激血糖水平下降。在哺乳动物体内,胰高血糖素样肽 1(GLP-1)和葡萄糖依赖性促胰岛素肽(GIP)等增量蛋白通过作用于胰腺β细胞刺激胰岛素的分泌。果蝇肠道中的EECs也能产生胰岛素,包括神经肽F(NPF),后者能刺激脑神经分泌细胞分泌胰岛素。在一项新的研究中,Chen 及其同事发现,NPF 还能调节果蝇的衰老,特别是通过作用于胰岛素信号传导。研究小组发现,抑制EECs分泌NPF或抑制胰岛素分泌神经元表达NPF受体可延长雌果蝇的寿命。他们还发现,NPF-胰岛素轴是通过控制位于大脑后方的内分泌腺体(corpora allata)的幼年激素分泌来调节衰老的。总之,这些研究结果表明,源自肠道的胰岛素可通过肠道-大脑-异形体轴调节果蝇的衰老。鉴于越来越多地使用增量素模拟药物来治疗糖尿病和肥胖症,增量素类似物对人类衰老的影响应得到进一步研究:Chen, J. et al.Natl Acad.USA 121, e2411987121 (2024)
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Gut–brain axis in Drosophila aging
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来源期刊
Lab Animal
Lab Animal 农林科学-兽医学
CiteScore
0.60
自引率
2.90%
发文量
181
审稿时长
>36 weeks
期刊介绍: LabAnimal is a Nature Research journal dedicated to in vivo science and technology that improves our basic understanding and use of model organisms of human health and disease. In addition to basic research, methods and technologies, LabAnimal also covers important news, business and regulatory matters that impact the development and application of model organisms for preclinical research. LabAnimal's focus is on innovative in vivo methods, research and technology covering a wide range of model organisms. Our broad scope ensures that the work we publish reaches the widest possible audience. LabAnimal provides a rigorous and fair peer review of manuscripts, high standards for copyediting and production, and efficient publication.
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