Requirement for α-CaMKII in Experience-Dependent Plasticity of the Barrel Cortex

Requirement for α-CaMKII in Experience-Dependent Plasticity of the Barrel Cortex
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桶状皮层经验依赖性可塑性对 α-CaMKII 的要求

DOI:
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发表时间:
1996
期刊:
影响因子:
56.9
通讯作者:
K. Fox
K. Fox
中科院分区:
综合性期刊1区
文献类型:
--
作者:
S. Glazewski;Chuan;Alcino J. Silva;K. Fox

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哺乳动物感觉新皮层表现出经验依赖的可塑性,使神经元根据感觉经验的变化改变其反应特性。长期增强需要钙钙调素依赖激酶II型(CaMKII)的突触可塑性机制可能是经验依赖可塑性的基础。成年小鼠的可塑性可以通过对桶状皮质的触觉输入模式的改变来诱导。这种反应在缺乏α-CaMKII编码基因的成年小鼠中被强烈抑制,尽管青春期小鼠不受影响。因此,α-CaMKII对于成年小鼠可塑性的诱导或表达都是必需的。
The mammalian sensory neocortex exhibits experience-dependent plasticity such that neurons modify their response properties according to changes in sensory experience. The synaptic plasticity mechanism of long-term potentiation requiring calcium-calmodulin-dependent kinase type II (CaMKII) could underlie experience-dependent plasticity. Plasticity in adult mice can be induced by changes in the patterns of tactile input to the barrel cortex. This response is strongly depressed in adult mice that lack the gene encoding α-CaMKII, although adolescent animals are unaffected. Thus, α-CaMKII is necessary either for the induction or for the expression of plasticity in adult mice.
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