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Updated: May 13, 2026

Modified Yeast-Two-Hybrid System to Identify Proteins Interacting with the Growth Factor Progranulin

Modified Yeast-Two-Hybrid System to Identify Proteins Interacting with the Growth Factor Progranulin

Published on: January 17, 2012

对前性痴呆症的progranulin AAV基因疗法:翻译研究和1/2期试验的中间结果

Jeffrey Sevigny¹, Olga Uspenskaya², Laura Dean Heckman²

¹Prevail Therapeutics, a wholly owned subsidiary of Eli Lilly and Company, New York, NY, USA. sevigny_jeffrey@lilly.com.

Nature medicine

|May 14, 2024

概括

这项针对前性痴呆症 (FTD-GRN) 的基因疗法试验显示,PR006在一般情况下是安全的,并且增加了前素水平. 需要进一步的研究来确认其在患者中的有效性和长期安全性.

科学领域:

神经科学是一个神经科学.
遗传学是一个遗传学.
药理学药理学是指药理学的学科.

背景情况:

GRN突变导致前列腺素 (PGRN) 缺乏,导致前性痴呆症 (FTD-GRN).
PR006是一种实验性基因疗法,利用腺相关病毒血清型9 (AAV9) 载体输送GRN基因.
临床前研究表明,PR006有潜力恢复PGRN水平并减轻FTD-GRN病理.

研究的目的:

评估PR006的安全性,免疫性和生物活性,在对FTD-GRN进行首次在人体上的1/2期临床试验中.
为了评估PR006后脑脊液 (CSF) 和血液中progranulin水平的变化.
通过认知和神经退行性标志物探索初步的疗效信号.

主要方法:

这是一项开放的1/2期试验,涉及FTD-GRN患者,通过大给药接受PR006.
对低剂量 (n=6) 和中剂量 (n=7) 队列的初步数据进行了临时分析,追踪时间长达12个月.
主要终点:安全性,免疫性 (抗AAV9和抗progranulin抗体) 和PGRN水平 (CSF/血液). 二级终点:CDR,NACC FTLD,以及神经丝光链 (NfL).

主要成果:

一般来说,PR006是安全的,耐受性很好,其中最常见的不良事件是脑脊髓细胞形成.
所有患者在CSF中都产生了抗AAV9抗体;没有检测到抗progranulin抗体. 在CSF中,PGRN水平在治疗后增加.
观察到NfL水平的过渡性增加,这可能表明背部根腺毒性. 认知进展率在FTD的预期范围内.

结论:

在FTD-GRN患者中,PR006表明了初步的安全性和生物活性,包括增加的PGRN水平.
观察到的NfL增加需要进一步调查潜在的神经毒性.
需要进行更长的随访和额外的研究,以确认PR006对FTD-GRN的安全性和治疗潜力.

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