Oligodendrocyte progenitors balance growth with self-repulsion to achieve homeostasis in the adult brain.
Oligodendrocyte progenitors balance growth with self-repulsion to achieve homeostasis in the adult brain.
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DOI：
10.1038/nn.3390
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发表时间：
2013-06
影响因子：
25
通讯作者：
Bergles, Dwight E.
中科院分区：
文献类型：
--
作者：
Hughes, Ethan G.;Kang, Shin H.;Fukaya, Masahiro;Bergles, Dwight E.
The adult CNS contains an abundant population of oligodendrocyte precursor cells (NG2+ cells) that generate oligodendrocytes and repair myelin, but how these ubiquitous progenitors maintain their density is unknown. Here we generated NG2-mEGFP mice and used in vivo two-photon imaging to study their dynamics in the adult brain. Time-lapse imaging revealed that NG2+ cells in the cortex are highly dynamic; they survey their local environment with motile filopodia, extend growth cones, and continuously migrate. They maintain unique territories through self-avoidance, and NG2+ cell loss through death, differentiation, or ablation triggered rapid migration and proliferation of adjacent cells to restore their density. NG2+ cells recruited to sites of focal CNS injury were similarly replaced by a proliferative burst surrounding the injury site. Thus, homeostatic control of NG2+ cell density through a balance of active growth and self-repulsion ensures that these progenitors are available to replace oligodendrocytes and participate in tissue repair.
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DOI：
10.1523/jneurosci.6000-09.2010
发表时间：
2010-03-10
期刊：
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子：
--
作者：
De Biase LM;Nishiyama A;Bergles DE
通讯作者：
Bergles DE
影响因子：
16.2
作者：
Kang, Shin H.;Fukaya, Masahiro;Yang, Jason K.;Rothstein, Jeffrey D.;Bergles, Dwight E.
通讯作者：
Bergles, Dwight E.
影响因子：
14.8
作者：
Holtmaat, Anthony;Bonhoeffer, Tobias;Chow, David K.;Chuckowree, Jyoti;De Paola, Vincenzo;Hofer, Sonja B.;Huebener, Mark;Keck, Tara;Knott, Graham;Lee, Wei-Chung A.;Mostany, Ricardo;Mrsic-Flogel, Tom D.;Nedivi, Elly;Portera-Cailliau, Carlos;Svoboda, Karel;Trachtenberg, Joshua T.;Wilbrecht, Linda
通讯作者：
Wilbrecht, Linda
影响因子：
3.7
作者：
Haberlandt C;Derouiche A;Wyczynski A;Haseleu J;Pohle J;Karram K;Trotter J;Seifert G;Frotscher M;Steinhäuser C;Jabs R
通讯作者：
Jabs R
影响因子：
64.8
作者：
Bergles, DE;Roberts, JDB;Jahr, CE
通讯作者：
Jahr, CE