当前位置: X-MOL 学术Brain › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Clemastine rescues myelination defects and promotes functional recovery in hypoxic brain injury.
Brain ( IF 14.5 ) Pub Date : 2017-12-13 , DOI: 10.1093/brain/awx312
Bruce A C Cree 1 , Jianqin Niu 2, 3 , Kimberly K Hoi 2 , Chao Zhao 4 , Scott D Caganap 1 , Roland G Henry 1 , Dang Q Dao 5 , Daniel R Zollinger 2 , Feng Mei 3 , Yun-An A Shen 1 , Robin J M Franklin 4 , Erik M Ullian 5 , Lan Xiao 3 , Jonah R Chan 1 , Stephen P J Fancy 1, 2, 6, 7
Affiliation  

Hypoxia can injure brain white matter tracts, comprised of axons and myelinating oligodendrocytes, leading to cerebral palsy in neonates and delayed post-hypoxic leukoencephalopathy (DPHL) in adults. In these conditions, white matter injury can be followed by myelin regeneration, but myelination often fails and is a significant contributor to fixed demyelinated lesions, with ensuing permanent neurological injury. Non-myelinating oligodendrocyte precursor cells are often found in lesions in plentiful numbers, but fail to mature, suggesting oligodendrocyte precursor cell differentiation arrest as a critical contributor to failed myelination in hypoxia. We report a case of an adult patient who developed the rare condition DPHL and made a nearly complete recovery in the setting of treatment with clemastine, a widely available antihistamine that in preclinical models promotes oligodendrocyte precursor cell differentiation. This suggested possible therapeutic benefit in the more clinically prevalent hypoxic injury of newborns, and we demonstrate in murine neonatal hypoxic injury that clemastine dramatically promotes oligodendrocyte precursor cell differentiation, myelination, and improves functional recovery. We show that its effect in hypoxia is oligodendroglial specific via an effect on the M1 muscarinic receptor on oligodendrocyte precursor cells. We propose clemastine as a potential therapy for hypoxic brain injuries associated with white matter injury and oligodendrocyte precursor cell maturation arrest.

中文翻译:

卡马斯汀可以挽救髓鞘缺损,并促进缺氧性脑损伤中的功能恢复。

缺氧会损伤由轴突和髓鞘少突胶质细胞组成的脑白质束,导致新生儿脑瘫,并导致成人低氧性白细胞后脑病(DPHL)延迟。在这些情况下,白质损伤后可伴有髓鞘再生,但髓鞘形成通常会失败,并且是固定的脱髓鞘病变的重要因素,并伴有永久性神经损伤。非髓鞘少突胶质前体细胞通常在病变中大量发现,但未能成熟,表明少突胶质少突胶质前体细胞的分化是缺氧导致髓鞘衰竭的关键因素。我们报告了一例成年患者,该患者发展出罕见的DPHL病状,并在使用clemastine进行治疗的过程中几乎完全康复,临床前模型中广泛使用的抗组胺药可促进少突胶质前体细胞分化。这暗示了在临床上更为普遍的新生儿缺氧损伤中可能的治疗益处,并且我们在鼠新生儿缺氧损伤中证明了clemastine极大地促进了少突胶质前体细胞的分化,髓鞘形成,并改善了功能恢复。我们表明,它在缺氧中的作用是通过对少突胶质细胞前体细胞上的M1毒蕈碱受体的作用而对少突胶质细胞特异性的。我们建议将clemastine作为与白质损伤和少突胶质前体细胞成熟停止相关的缺氧性脑损伤的潜在疗法。这暗示了在临床上更为普遍的新生儿缺氧损伤中可能的治疗益处,并且我们在鼠新生儿缺氧损伤中证明了clemastine极大地促进了少突胶质前体细胞的分化,髓鞘形成,并改善了功能恢复。我们表明,它在缺氧中的作用是通过对少突胶质细胞前体细胞上的M1毒蕈碱受体的作用而对少突胶质细胞特异性的。我们建议将clemastine作为与白质损伤和少突胶质前体细胞成熟停止相关的缺氧性脑损伤的潜在疗法。这暗示了在临床上更为普遍的新生儿缺氧损伤中可能的治疗益处,并且我们在鼠新生儿缺氧损伤中证明了clemastine极大地促进了少突胶质前体细胞的分化,髓鞘形成,并改善了功能恢复。我们表明,它在缺氧中的作用是通过对少突胶质细胞前体细胞上的M1毒蕈碱受体的作用而对少突胶质细胞特异性的。我们建议将clemastine作为与白质损伤和少突胶质前体细胞成熟停止相关的缺氧性脑损伤的潜在疗法。我们表明,它在缺氧中的作用是通过对少突胶质细胞前体细胞上的M1毒蕈碱受体的作用而对少突胶质细胞特异性的。我们建议将clemastine作为与白质损伤和少突胶质前体细胞成熟停止相关的缺氧性脑损伤的潜在疗法。我们表明,它在缺氧中的作用是通过对少突胶质细胞前体细胞上的M1毒蕈碱受体的作用而对少突胶质细胞特异性的。我们建议将clemastine作为与白质损伤和少突胶质前体细胞成熟停止相关的缺氧性脑损伤的潜在疗法。
更新日期:2017-12-13
down
wechat
bug