Hippocampal Dendritic Spines Are Segregated Depending on Their Actin Polymerization
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چکیده
منابع مشابه
Hippocampal Dendritic Spines Are Segregated Depending on Their Actin Polymerization.
Dendritic spines are mushroom-shaped protrusions of the postsynaptic membrane. Spines receive the majority of glutamatergic synaptic inputs. Their morphology, dynamics, and density have been related to synaptic plasticity and learning. The main determinant of spine shape is filamentous actin. Using FRAP, we have reexamined the actin dynamics of individual spines from pyramidal hippocampal neuro...
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The Wiskott-Aldrich syndrome protein family Verprolin-homologous protein (WAVE) complex has been proposed to link Rho GTPase activity with actin polymerization but its role in neuronal plasticity has never been documented. We now examined the presence, distribution and dynamics of WAVE3 in cultured hippocampal neurons. WAVE3 was localized to dendritic spines via its N-terminal domain. Green flu...
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Dendritic spines have been proposed as primary sites of synaptic plasticity in the brain. Consistent with this hypothesis, spines contain high concentrations of actin, suggesting that they might be motile. To investigate this possibility, we made video recordings from hippocampal neurons expressing actin tagged with green fluorescent protein (GFP-actin). This reagent incorporates into actin-con...
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ژورنال
عنوان ژورنال: Neural Plasticity
سال: 2016
ISSN: 2090-5904,1687-5443
DOI: 10.1155/2016/2819107