SMN is required for sensory-motor circuit function in Drosophila.
SMN is required for sensory-motor circuit function in Drosophila.
复制标题
SMN是果蝇中感觉运动电路函数所必需的。
DOI:
10.1016/j.cell.2012.09.011
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发表时间:
2012-10-12
期刊:
影响因子:
64.5
通讯作者:
McCabe BD
中科院分区:
文献类型:
--
作者:
Imlach WL;Beck ES;Choi BJ;Lotti F;Pellizzoni L;McCabe BD
Spinal muscular atrophy (SMA) is a lethal human disease characterized by motor neuron dysfunction and muscle deterioration due to depletion of the ubiquitous Survival Motor Neuron (SMN) protein. Drosophila SMN mutants have reduced muscle size and defective locomotion, motor rhythm and motor neuron neurotransmission. Unexpectedly, restoration of SMN in either muscles or motor neurons did not alter these phenotypes. Instead, SMN must be expressed in proprioceptive neurons and interneurons in the motor circuit to non-autonomously correct defects in motor neurons and muscles. SMN depletion disrupts the motor system subsequent to circuit development and can be mimicked by the inhibition of motor network function. Furthermore, increasing motor circuit excitability by genetic or pharmacological inhibition of K+ channels can correct SMN-dependent phenotypes. These results establish sensory-motor circuit dysfunction as the origin of motor system deficits in this SMA model and suggest that enhancement of motor neural network activity could ameliorate the disease.
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影响因子:
64.5
作者:
LEFEBVRE, S;BURGLEN, L;MELKI, J
通讯作者:
MELKI, J
DOI:
10.1523/jneurosci.5775-11.2012
发表时间:
2012-03-14
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Gogliotti RG;Quinlan KA;Barlow CB;Heier CR;Heckman CJ;Didonato CJ
通讯作者:
Didonato CJ
DOI:
10.1523/jneurosci.4434-08.2009
发表时间:
2009-01-21
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Kong L;Wang X;Choe DW;Polley M;Burnett BG;Bosch-Marcé M;Griffin JW;Rich MM;Sumner CJ
通讯作者:
Sumner CJ
影响因子:
5.3
作者:
Fox, LE;Soll, DR;Wu, CF
通讯作者:
Wu, CF
影响因子:
6
作者:
Chwieduk, Claudine M.;Keating, Gillian M.
通讯作者:
Keating, Gillian M.