Metabotropic Glutamate Receptors Protect Oligodendrocytes from Acute Ischemia in the Mouse Optic Nerve.

Metabotropic Glutamate Receptors Protect Oligodendrocytes from Acute Ischemia in the Mouse Optic Nerve.
复制标题

DOI:
10.1007/s11064-017-2220-1
复制
发表时间:
2017-09
影响因子:
4.4
通讯作者:
Hawkins VE
Hawkins VE
中科院分区:
医学3区
文献类型:
--
作者:
Butt AM;Vanzulli I;Papanikolaou M;De La Rocha IC;Hawkins VE

文献摘要

参考文献

被引文献

相似文献

布鲁斯·兰瑟姆和他的同事的研究做出了重大贡献,表明白质容易受到缺血/缺氧的影响。白质含有轴突和支持轴突的胶质细胞,特别是髓鞘少突胶质细胞,它们非常容易受到缺血缺氧性损伤。先前的研究表明,代谢性谷氨酸受体(MGluRs)对少突胶质前体细胞和未成熟少突胶质细胞具有细胞保护作用,但其在成人脑白质中的潜在作用尚不清楚。在这里,我们报道了出生后8-12天和30-35天的小鼠的视神经中表达第1组mGluR1/5和第2组mGluR3亚单位。我们证明,在发育中和年轻的成年视神经中,激活第1组mGluR可以保护少突胶质细胞免受缺氧-葡萄糖剥夺(OGD)的影响。相反,第2组mGluR对出生后少突胶质细胞的OGD有保护作用,但对年轻成年视神经没有保护作用。第1组mGluR的细胞保护作用需要激活PKC,而第2组的mGluR依赖于对腺苷环化酶和cAMP的负调控。我们的结果证实了mGluR在限制发育和年轻成人白质中少突胶质细胞的损伤中的作用,这可能有助于在涉及兴奋性和缺血/缺氧的神经病理中保护少突胶质细胞。
Studies by Bruce Ransom and colleagues have made a major contribution to show that white matter is susceptible to ischemia/hypoxia. White matter contains axons and the glia that support them, notably myelinating oligodendrocytes, which are highly vulnerable to ischemic-hypoxic damage. Previous studies have shown that metabotropic GluRs (mGluRs) are cytoprotective for oligodendrocyte precursor cells and immature oligodendrocytes, but their potential role in adult white matter was unresolved. Here, we report that group 1 mGluR1/5 and group 2 mGluR3 subunits are expressed in optic nerves from mice aged postnatal day (P)8–12 and P30–35. We demonstrate that activation of group 1 mGluR protects oligodendrocytes against oxygen-glucose deprivation (OGD) in developing and young adult optic nerves. In contrast, group 2 mGluR are shown to be protective for oligodendrocytes against OGD in postnatal but not young adult optic nerves. The cytoprotective effect of group 1 mGluR requires activation of PKC, whilst group 2 mGluR are dependent on negatively regulating adenylyl cyclase and cAMP. Our results identify a role for mGluR in limiting injury of oligodendrocytes in developing and young adult white matter, which may be useful for protecting oligodendrocytes in neuropathologies involving excitoxicity and ischemia/hypoxia.
少突胶质细胞中的任务1通道:缺血介导的破坏中的作用。
DOI: 10.1016/j.nbd.2013.03.016
发表时间: 2013-07
影响因子: 6.1
作者:
Hawkins V;Butt A
通讯作者: Butt A
DOI: 10.1371/journal.pone.0022235
发表时间: 2011
期刊: PloS one
影响因子: 3.7
作者:
Durand D;Carniglia L;Caruso C;Lasaga M
通讯作者: Lasaga M
DOI: 10.1016/s0014-4886(03)00032-3
发表时间: 2003-06-01
影响因子: 5.3
作者:
Craig, A;Luo, NL;Back, SA
通讯作者: Back, SA
DOI: 10.1523/jneurosci.5137-07.2008
发表时间: 2008-02-06
影响因子: 5.3
作者:
Baltan, Selva;Besancon, Elaine F.;Ransom, Bruce R.
通讯作者: Ransom, Bruce R.
DOI: 10.1073/pnas.76.1.514
发表时间: 1979-01-01
影响因子: 11.1
作者:
BOTTENSTEIN, JE;SATO, GH
通讯作者: SATO, GH