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Review: Fluid biomarkers in the human prion diseases.
Molecular and Cellular Neuroscience ( IF 2.6 ) Pub Date : 2018-12-04 , DOI: 10.1016/j.mcn.2018.12.003
Andrew G B Thompson 1 , Simon H Mead 1
Affiliation  

The human prion diseases are a diverse set of often rapidly progressive neurodegenerative conditions associated with abnormal forms of the prion protein. We review work to establish diagnostic biomarkers and assays that might fill other important roles, particularly those that could assist the planning and interpretation of clinical trials. The field now benefits from highly sensitive and specific diagnostic biomarkers using cerebrospinal fluid: detecting by-products of rapid neurodegeneration or specific functional properties of abnormal prion protein, with the second generation real time quaking induced conversion (RT-QuIC) assay being particularly promising. Blood has been a more challenging analyte, but has now also yielded valuable biomarkers. Blood-based assays have been developed with the potential to screen for variant Creutzfeldt-Jakob disease, although it remains uncertain whether these will ever be used in practice. The very rapid neurodegeneration of prion disease results in strong signals from surrogate protein markers in the blood that reflect neuronal, axonal, synaptic or glial pathology in the brain: notably the tau and neurofilament light chain proteins. We discuss early evidence that such tests, applied alongside robust diagnostic biomarkers, may have potential to add value as clinical trial outcome measures, predictors of future disease course (including for asymptomatic individuals at high risk of prion disease), and as rapidly accessible and sensitive markers to aid early diagnosis.

中文翻译:

综述:人类病毒疾病中的流体生物标志物。

人类病毒疾病是与set病毒蛋白异常形式相关的多种多样的通常迅速进展的神经退行性疾病。我们回顾了建立可满足其他重要作用的诊断性生物标志物和检测方法的工作,尤其是那些有助于规划和解释临床试验的生物标志物和检测方法。该领域现在受益于使用脑脊髓液的高度敏感和特异性的诊断生物标记物:检测快速神经变性或异常病毒蛋白的特定功能特性的副产物,第二代实时地震诱导转化(RT-QuIC)分析特别有希望。血液一直是更具挑战性的分析物,但现在也产生了有价值的生物标志物。已经开发出了基于血液的测定方法,具有筛选变异克雅氏病的潜力,尽管尚不确定这些方法是否会在实践中使用。ion病毒疾病的快速神经变性会导致血液中替代蛋白质标记物产生强烈的信号,这些信号反映出大脑中的神经元,轴突,突触或神经胶质病理:tau蛋白和神经丝轻链蛋白。我们讨论了早期证据,这些试验与强有力的诊断生物标志物一起使用,可能具有增加临床试验结果,预测未来病程的指标(包括对病毒高风险无症状者)的价值,并且具有快速获取和敏感性的潜力。有助于早期诊断的标志物。ion病毒疾病的快速神经变性会导致血液中替代蛋白质标志物产生强烈信号,这些信号标志着大脑的神经元,轴突,突触或神经胶质病理:tau蛋白和神经丝轻链蛋白。我们讨论了早期证据,这些试验与可靠的生物标志物一起使用,可能具有增加临床试验结果,预测未来病程的指标(包括对病毒病高风险无症状者)以及快速获取和敏感的价值。有助于早期诊断的标志物。ion病毒疾病的快速神经变性会导致血液中替代蛋白质标记物产生强烈的信号,这些信号反映出大脑中的神经元,轴突,突触或神经胶质病理:tau蛋白和神经丝轻链蛋白。我们讨论了早期证据,这些试验与强有力的诊断生物标志物一起使用,可能具有增加临床试验结果,预测未来病程的指标(包括对病毒高风险无症状者)的价值,并且具有快速获取和敏感性的潜力。有助于早期诊断的标志物。
更新日期:2018-12-04
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