Glutamate signaling mediates C. elegans behavioral plasticity to pathogens.
Glutamate signaling mediates C. elegans behavioral plasticity to pathogens.
复制标题
谷氨酸信号介导秀丽隐杆线虫对病原体的行为可塑性。
DOI:
10.1016/j.isci.2022.103919
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发表时间:
2022-03-18
期刊:
影响因子:
5.8
通讯作者:
Chang HC
中科院分区:
文献类型:
--
作者:
Yu CY;Chang HC
In Caenorhabditis elegans, sensory neurons mediate behavioral response to pathogens. However, how C. elegans intergrades these sensory signals via downstream neuronal and molecular networks remains largely unknown. Here, we report that glutamate transmission mediates behavioral plasticity to Pseudomonas aeruginosa. Deletion in VGLUT/eat-4 renders the mutant animals unable to elicit either an attractive or an aversive preference to a lawn of P. aeruginosa. AMPA-type glutamate receptor GLR-1 promotes the avoidance response to P. aeruginosa. SOD-1 acts downstream of GLR-1 in the cholinergic motor neurons. SOD-1 forms a punctate structure and is localized next to GLR-1 at the ventral nerve cord. Finally, single-copy ALS-causative sod-1 point mutation acts as a loss-of-function allele in both pathogen avoidance and glr-1 dependent phenotypes. Our data showed a link between glutamate signaling and redox homeostasis in C. elegans pathogen response and may provide potential insights into the pathology triggered by oxidative stress in the nervous system. OSM-9/OCR-2 and TAX-2/TAX-4 mediate pathogen-induced behavioral response Eat-4 mutant cannot distinguish whether Pseudomonas aeruginosa is attractive or repulsive Glutamate receptor GLR-1 acts upstream of SOD-1 to promote pathogen avoidance Single copy SOD-1(G85R) mutation elicits loss-of-function behavioral phenotypes Cellular neuroscience; Microbiology parasite; Molecular microbiology; Molecular neuroscience
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