The dynamic cytoskeleton: backbone of dendritic spine plasticity.

Abstract:

:Dendritic spines are small actin-rich protrusions on the surface of dendrites whose morphological and molecular plasticity play key roles in learning and memory. Both the form and function of spines are critically dependent on the actin cytoskeleton. However, new research, using electron microscopy and live-cell super-resolution microscopy indicates that the actin cytoskeleton is more complex and dynamic than originally thought. Also, exciting recent studies from several labs indicate that microtubules, once thought to be restricted to the dendrite shaft, can make excursions into the most distal regions of dendritic spines. Moreover, microtubule invasions of spines appear to be associated with changes in synaptic activity. Thus, it is likely that dynamic interactions between microtubules and actin filaments within dendritic spines play important roles in dendritic spine plasticity.

journal_name

Curr Opin Neurobiol

authors

Dent EW,Merriam EB,Hu X

doi

10.1016/j.conb.2010.08.013

subject

Has Abstract

pub_date

2011-02-01 00:00:00

pages

175-81

issue

1

eissn

0959-4388

issn

1873-6882

pii

S0959-4388(10)00133-9

journal_volume

21

pub_type

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