纳普 (达维尼提德):神经保护性ADNP候选药物透细胞核,解释类机制
Maram Ganaiem1, Nina D Gildor1, Shula Shazman2,3
1The Elton Laboratory for Molecular Neuroendocrinology, Department of Human Molecular Genetics and Biochemistry, Faculty of Medicine, Sagol School of Neuroscience and Adams Super Center for Brain Studies, Tel Aviv University, Tel Aviv 6997801, Israel.
Cells
|September 28, 2023
概括
候选药物NAP (davunetide) 通过与微管相互作用,纠正突变活动依赖神经保护蛋白 (ADNP) 细胞中的异常细胞结构. 这种机制解释了NAP.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 在ADNP突变细胞中观察到异常的核/细胞质边界和活动依赖的神经保护蛋白 (ADNP) 分布.
- 从ADNP衍生的片段候选药物NAP (davunetide) 之前在神经元分化过程中纠正了这些形.
研究的目的:
- 研究NAP在ADNP突变细胞中提供核保护的机制.
- 阐明微管在ADNP突变表型中的作用和NAP的治疗效果.
主要方法:
- 编辑CRISPR/Cas9基因以创建具有GFP标记ADNP突变的N1E-115神经母细胞瘤细胞系 (p.Tyr718*和p.Ser403*).
- 用Cy5结合NAP治疗的细胞的实时成像.
- 定量形态学,免疫细胞化学和RNA/蛋白质量化.
- 使用或诺可达进行微管管破坏;在接研究中.
主要成果:
- NAP迅速分布到细胞质和核两部分.
- 在ADNP突变的细胞系中,微管体含量减少.
- 微管的破坏模仿了ADNP突变表型,NAP迅速纠正了这些异常边界.
- NAP和胺显示通过in silico对接与ADNP直接相互作用;胺在体内无效.
结论:
- NAP通过微管连接机制改善突变的ADNP相关缺陷,迅速局部化到细胞质和核区.
- 这些发现为NAP的治疗效果提供了机制性的解释,并支持其进一步的研究和临床开发.
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