The NG2 proteoglycan promotes oligodendrocyte progenitor proliferation and developmental myelination.

The NG2 proteoglycan promotes oligodendrocyte progenitor proliferation and developmental myelination.
复制标题

DOI:
10.1016/j.neuroscience.2009.12.014
复制
发表时间:
2010-03-10
期刊:
影响因子:
3.3
通讯作者:
Stallcup WB
Stallcup WB
中科院分区:
医学3区
文献类型:
--
作者:
Kucharova K;Stallcup WB

文献摘要

参考文献

被引文献

相似文献

NG2蛋白多糖已被证明能促进多种细胞类型的增殖和运动。NG2在少突胶质前体细胞(OPC)上的存在表明,蛋白多糖可能是OPC池扩张的一个因素,在OPC分化形成髓鞘少突胶质细胞之前填充整个中枢神经系统。对野生型和NG2缺失小鼠出生后小脑髓鞘形成的比较显示,NG2缺失小鼠发育中白质中OPC的数量减少。BrdU掺入的定量检测表明,增殖减少是OPC短缺的关键原因,在没有NG2的情况下,OPC的增殖高峰推迟了4-5天。由于OPC池低于正常,NG2缺失的小脑中成熟少突胶质细胞和髓鞘形成过程也延迟。NG2可能通过增强生长因子信号或介导OPC与无髓轴突的相互作用来促进OPC的增殖。
The NG2 proteoglycan has been shown to promote proliferation and motility in a variety of cell types. The presence of NG2 on oligodendrocyte progenitor cells (OPCs) suggests that the proteoglycan may be a factor in expansion of the OPC pool to fill the entire central nervous system prior to OPC differentiation to form myelinating oligodendrocytes. Comparisons of postnatal cerebellar myelination in wild type and NG2 null mice reveal reduced numbers of OPCs in developing white matter of the NG2 null mouse. Quantification of BrdU incorporation shows that reduced proliferation is a key reason for this OPC shortage, with the peak of OPC proliferation delayed by 4-5 days in the absence of NG2. As a result of the subnormal pool of OPCs, there is also a delay in production of mature oligodendrocytes and myelinating processes in the NG2 null cerebellum. NG2 may promote OPC proliferation via enhancement of growth factor signaling or mediation of OPC interaction with unmyelinated axons.
DOI: 10.1038/35012083
发表时间: 2000-05-11
期刊: NATURE
影响因子: 64.8
作者:
Bergles, DE;Roberts, JDB;Jahr, CE
通讯作者: Jahr, CE
DOI: 10.1023/a:1025751900356
发表时间: 2002-07-01
期刊: JOURNAL OF NEUROCYTOLOGY
影响因子: --
作者:
Butt, AM;Kiff, J;Berry, M
通讯作者: Berry, M
DOI: 10.1006/excr.1997.3674
发表时间: 1997-08-25
影响因子: 3.7
作者:
Burg, MA;Nishiyama, A;Stallcup, WB
通讯作者: Stallcup, WB
DOI: 10.1074/jbc.274.24.16831
发表时间: 1999-06-11
影响因子: 4.8
作者:
Goretzki, L;Burg, MA;Stallcup, WB
通讯作者: Stallcup, WB
DOI: 10.1091/mbc.e04-03-0236
发表时间: 2004-08-01
影响因子: 3.3
作者:
Fukushi, J;Makagiansar, IT;Stallcup, WB
通讯作者: Stallcup, WB