鉴定和特征化蛋白酸化特异性的DNA Aptamers
I-Ting Teng1, Xiaowei Li1, Hamad Ahmad Yadikar2
1Department of Chemistry, Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, UF Health Cancer Center , UF Genetics Institute and McKnight Brain Institute, University of Florida , Gainesville , Florida 32611-7200 , United States.
研究人员开发出一种新型的DNA体,可以与特定的蛋白位点结合,从而抑制其有害的聚合和化. 这些体有潜力诊断和治疗一种神经退行性疾病.
科学领域:
- 生物化学
- 分子生物学
- 神经科学
背景情况:
- 蛋白稳定微管,但过化导致病的聚合物和神经退行.
- 病与各种神经退行性疾病有关.
- DNA 体是特定的寡核酸结合剂.
研究的目的:
- 为了识别tau表位特异性的DNA体.
- 为了研究aptamers抑制tau酸化和聚合的能力.
主要方法:
- 针对tau酸化位点 (Thr-231,Ser-202) 的DNA合体的选择.
- 对图表和全长图表441的相亲关系评估.
- 评估酸盐酸化和寡合化中介抑制.
主要成果:
- 鉴定了六种具有纳米分子 afinity 的 tau 表位和全长的 Tau441.
- 特定的胺 (IT4,IT5,IT6) 抑制了的酸化.
- 几种亚体 (IT3,IT4,IT5,IT6) 抑制了的寡合化.
结论:
- 第一个tau表位特异性DNA的报道.
- 在生物流体中检测tau的潜在诊断工具.
- 用于缓解与病相关的神经退行性疾病的治疗药物.
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