A neuropeptide-mediated stretch response links muscle contraction to changes in neurotransmitter release.
A neuropeptide-mediated stretch response links muscle contraction to changes in neurotransmitter release.
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DOI:
10.1016/j.neuron.2011.04.021
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发表时间:
2011-07-14
期刊:
影响因子:
16.2
通讯作者:
Kaplan JM
中科院分区:
文献类型:
--
作者:
Hu Z;Pym EC;Babu K;Vashlishan Murray AB;Kaplan JM
Although C. elegans has been utilized extensively to study synapse formation and function, relatively little is known about synaptic plasticity in C. elegans. We show that a brief treatment with the cholinesterase inhibitor aldicarb induces a form of presynaptic potentiation whereby ACh release at neuromuscular junctions (NMJs) is doubled. Aldicarb-induced potentiation was eliminated by mutations that block processing of pro-neuropeptides, by mutations inactivating a single pro-neuropeptide (NLP-12), and by those inactivating an NLP-12 receptor (CKR-2). NLP-12 expression is limited to a single stretch-activated neuron, DVA. Analysis of a YFP-tagged NLP-12 suggests that aldicarb stimulates DVA secretion of NLP-12. Mutations disrupting the DVA mechanoreceptor (TRP-4) decreased aldicarb-induced NLP-12 secretion and blocked aldicarb-induced synaptic potentiation. Mutants lacking NLP-12 or CKR-2 have decreased locomotion rates. Collectively, these results suggest that NLP-12 mediates a mechanosensory feedback loop that couples muscle contraction to changes in presynaptic release, thereby providing a mechanism for proprioceptive control of locomotion.
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影响因子:
4.5
作者:
Ch'ng, QueeLim;Sieburth, Derek;Kaplan, Joshua M.
通讯作者:
Kaplan, Joshua M.
DOI:
10.1023/a:1024126110356
发表时间:
2002-03-01
期刊:
JOURNAL OF NEUROCYTOLOGY
影响因子:
--
作者:
Kawaguchi, Y;Kondo, S
通讯作者:
Kondo, S
影响因子:
16.2
作者:
Nurrish, S;Ségalat, L;Kaplan, JM
通讯作者:
Kaplan, JM
DOI:
10.1523/jneurosci.0378-08.2008
发表时间:
2008-07-09
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Dittman JS;Kaplan JM
通讯作者:
Kaplan JM
影响因子:
3.5
作者:
Husson, Steven J.;Schoofs, Liliane
通讯作者:
Schoofs, Liliane