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Updated: Feb 19, 2026

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一个侧面化的感觉信号通路介导了Caenorhabditis elegans中的上下文依赖的嗅觉可塑性

Anjali Pandey¹, Maya Katz¹, Stephen Nurrish¹

¹Department of Biology, Brandeis University, Waltham, MA 02454.

Proceedings of the National Academy of Sciences of the United States of America

|February 17, 2026

概括

在C. elegans的行为灵活性依赖于神经元可塑性. 这项研究揭示了嗅觉神经元中的不对称分子机制驱动了对称的行为反应,增强了适应能力.

科学领域:

神经科学是一个神经科学.
分子生物学分子生物学
行为遗传学行为遗传学

背景情况:

神经元功能横向化对于行为灵活性至关重要.
在C. elegans中,上下文依赖的可塑性涉及双边AWC嗅觉神经元中的对称气味反应逆转.

研究的目的:

为了研究底层的分子机制对称的神经反应可塑性.
确定不对称的分子机制如何驱动对称的行为可塑性.

主要方法:

在C. elegans.中对瓜尼利基环酶受体12 (GCY-12) 的基因操纵.
在AWC^OFF和AWC^ON神经元中分析气味引起的反应.
调查AWC命运横向化在响应可塑性中的作用.

主要成果:

在gcy-12中的突变特别取消了AWC^OFF神经元中的气味反应可塑性.
在gcy-12突变体的AWC^OFF和AWC^ON神经元中,不对称的气味引起的反应标志导致行为冷漠.
在AWC神经元中,GCY-12是可塑性调节的必要条件,但主要影响AWC^OFF.
破坏AWC命运横向化消除了gcy-12突变者的响应可塑性不对称性.

结论:

对称的神经反应可塑性可以从不对称的分子机制中出现.
信号通路的横向化可以增强神经元和行为灵活性.

关键词:

这里是C. elegans.瓜尼利环酶的使用方法左右不对称的情况.嗅觉嗅觉是一种嗅觉.塑性的可塑性塑性

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