嗅觉调节了外围线粒细胞和线粒体功能
Julian G Dishart1,2,3, Corinne L Pender1,2,3, Koning Shen1,2,3
1The Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA.
Science advances
|June 21, 2024
概括
嗅觉系统调节线粒体的应激反应. 沉默嗅觉神经元触发了线粒体中展开的蛋白质反应 (UPRMT),增强了病原体的抵抗力.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 线粒体动力学的动力学
背景情况:
- 中枢神经系统调节外周细胞应激反应,包括线粒体展开蛋白质反应 (UPRMT).
- 这种调节能力的进化背景尚不清楚,尽管UPRMT与感染和代谢变化有关.
研究的目的:
- 为了调查香味神经系统是否在Caenorhabditis elegans中非自主地控制UPR.
- 探索嗅觉信号在细胞压力和生物体防御中的作用.
主要方法:
- 在C. elegans*中沉默AWC嗅觉神经元对.
- 评估UPRMT的诱导和氧化酸化水平.
- 评估病原体对*Pseudomonas aeruginosa*的耐药性.
- 研究血清素信号传递,帕金介导的线粒和ATFS-1转录因子的作用.
主要成果:
- 沉默AWC神经元强烈诱导UPRMT和减少氧化酸化.
- 这种效应取决于血清素信号传递和帕金基介导的线粒.
- 通过AWC神经元切除,获得了对P. aeruginosa*的部分耐药性,而这种耐药性取决于UPRMT和线粒细胞吸收.
- 这种抗性部分需要ATFS-1,一种UPRMT转录因子.
结论:
- 嗅觉神经系统在调节整个生物体的线粒体动力学方面发挥着作用.
- 这种调节可能会让生物体为代谢压力或感染做好准备.
- 嗅觉控制UPRMT和线粒细胞的作用有助于病原体的耐药性.
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