Pivotal role of choline metabolites in remyelination.

Pivotal role of choline metabolites in remyelination.
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胆碱代谢物在髓鞘再生中的关键作用

DOI:
10.1093/brain/awu358
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发表时间:
2015
期刊:
Brain : a journal of neurology
影响因子:
--
通讯作者:
M Stangel
M Stangel
中科院分区:
--
文献类型:
--
作者:
Skripuletz T;Manzel A;Gropengiesser K;Schäfer N;Gudi V;Singh V;Salinas Tejedor L;Jörg S;Hammer A;Voss E;Vulinovic F;Degen D;Wolf R;Lee DH;Moharregh- Khiabani D;Baumgärtner W;Gold R;Linker RA;M Stangel

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迄今为止,用于中枢神经系统再生的神经保护方法在临床实践中还没有成功,并且增强髓鞘再生的化合物仍然不能用于多发性硬化症患者。本研究的目的是确定物质胞苷-5 ′-二磷酸(CDP)-胆碱在两种不同的多发性硬化小鼠动物模型中的潜在再生作用。在鼠髓鞘少突胶质细胞糖蛋白诱导的实验性自身免疫性脑脊髓炎中测试外源性应用CDP-胆碱的作用。此外,cuprizone诱导的脱髓鞘和髓鞘再生的小鼠模型用于具体测试CDP-胆碱直接增加髓鞘再生的假设。我们发现CDP-胆碱改善了实验性自身免疫性脑脊髓炎的病程,并对髓鞘、少突胶质细胞和轴突产生了有益的影响。在cuprizone诱导的脱髓鞘后,CDP-胆碱有效地增强了髓鞘再生并逆转了运动协调缺陷。髓鞘再生的增加是由增殖的少突胶质细胞前体细胞和少突胶质细胞的数量增加引起的。进一步的体外研究表明,这一过程受蛋白激酶C的调控。因此,我们确定了一个新的机制,以提高中枢神经系统髓鞘通过胆碱途径。由于其再生作用与良好的安全性相结合,CDP-胆碱可能成为多发性硬化症患者的一种有前途的物质,作为一种附加治疗。
Neuroprotective approaches for central nervous system regeneration have not been successful in clinical practice so far and compounds that enhance remyelination are still not available for patients with multiple sclerosis. The objective of this study was to determine potential regenerative effects of the substance cytidine-5′-diphospho (CDP)-choline in two different murine animal models of multiple sclerosis. The effects of exogenously applied CDP-choline were tested in murine myelin oligodendrocyte glycoprotein-induced experimental autoimmune encephalomyelitis. In addition, the cuprizone-induced mouse model of de- and remyelination was used to specifically test the hypothesis that CDP-choline directly increases remyelination. We found that CDP-choline ameliorated the disease course of experimental autoimmune encephalomyelitis and exerted beneficial effects on myelin, oligodendrocytes and axons. After cuprizone-induced demyelination, CDP-choline effectively enhanced myelin regeneration and reversed motor coordination deficits. The increased remyelination arose from an increase in the numbers of proliferating oligodendrocyte precursor cells and oligodendrocytes. Furtherin vitrostudies suggest that this process is regulated by protein kinase C. We thus identified a new mechanism to enhance central nervous system remyelination via the choline pathway. Due to its regenerative action combined with an excellent safety profile, CDP-choline could become a promising substance for patients with multiple sclerosis as an add-on therapy.
干扰素-β 治疗使多发性硬化症患者血清对少突胶质祖细胞增殖的抑制作用正常化
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