A Multicellular Network Mechanism for Temperature-Robust Food Sensing
A Multicellular Network Mechanism for Temperature-Robust Food Sensing
复制标题
用于温度稳定食品传感的多细胞网络机制
DOI:
10.1101/815373
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Patel D
中科院分区:
文献类型:
--
作者:
Patel D
Responsiveness to external cues is a hallmark of biological systems. In complex environments, it is crucial for organisms to remain responsive to specific inputs even as other internal or external factors fluctuate. Here, we show how the nematodeCaenorhabditis eleganscan discriminate between different food levels to modulate its lifespan despite temperature perturbations. This end-to-end robustness from environment to physiology is mediated by food-sensing neurons that communicate via transforming growth factor β (TGF-β) and serotonin signals to form a multicellular gene network. Specific regulations in this network change sign with temperature to maintain similar food responsiveness in the lifespan output. In contrast to robustness of stereotyped outputs, our findings uncover a more complex robustness process involving the higher order function of discrimination in food responsiveness. This process involves rewiring a multicellular network to compensate for temperature and provides a basis for understanding gene-environment interactions. Together, our findings unveil sensory computations that integrate environmental cues to govern physiology.
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