Biological function of Lemur tyrosine kinase 2 (LMTK2): implications in neurodegeneration.

Biological function of Lemur tyrosine kinase 2 (LMTK2): implications in neurodegeneration.
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DOI:
10.1186/s13041-018-0363-x
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发表时间:
2018-04-10
期刊:
影响因子:
3.6
通讯作者:
Hortobágyi T
Hortobágyi T
中科院分区:
医学3区
文献类型:
--
作者:
Bencze J;Mórotz GM;Seo W;Bencs V;Kálmán J;Miller CCJ;Hortobágyi T

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神经退行性疾病是常见的、无法治愈的疾病,其特征是蛋白质异常积累和进行性神经元损失。尽管它们的患病率越来越高,但其潜在的病理机制仍不清楚。狐猴酪氨酸激酶 2 (LMTK2) 是跨膜丝氨酸/苏氨酸蛋白激酶家族的成员。尽管十多年前就已有描述,但我们对 LMTK2 生物学功能的了解仍然不足。最近的证据表明 LMTK2 与神经退行性疾病有关。在查阅文献后,我们发现了 LMTK2 介导的三种可能导致神经退行性过程的机制:轴突运输中断、tau 蛋白过度磷酸化和细胞凋亡增强。此外,在阿尔茨海默病小鼠模型中,LMTK2 基因表达降低。根据这些特征,LMTK2可能在不久的将来成为一个有前途的治疗靶点。然而,需要进一步研究来阐明这种独特蛋白质的确切生物学功能。
Neurodegenerative disorders are frequent, incurable diseases characterised by abnormal protein accumulation and progressive neuronal loss. Despite their growing prevalence, the underlying pathomechanism remains unclear. Lemur tyrosine kinase 2 (LMTK2) is a member of a transmembrane serine/threonine-protein kinase family. Although it was described more than a decade ago, our knowledge on LMTK2’s biological functions is still insufficient. Recent evidence has suggested that LMTK2 is implicated in neurodegeneration. After reviewing the literature, we identified three LMTK2-mediated mechanisms which may contribute to neurodegenerative processes: disrupted axonal transport, tau hyperphosphorylation and enhanced apoptosis. Moreover, LMTK2 gene expression is decreased in an Alzheimer’s disease mouse model. According to these features, LMTK2 might be a promising therapeutic target in near future. However, further investigations are required to clarify the exact biological functions of this unique protein.
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