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在长期的免疫防御斗争中,CRISPR系统已经演化成多种类型,其中,Cas9通过引导RNA(gRNA)切割外源DNA的特性被广泛研究和应用到基因编辑领域。
并拓展了Cas9除基因编辑工具以外的应用,同时为基因编辑提供了一定的指导作用,将进一步推进CRISPR检测在分子诊断领域的发展。 厦门大学生命 ...
CRISPR系统是一种存在于原核生物中的适应性免疫系统,用于抵御外来DNA的入侵。在长期的免疫防御斗争中,CRISPR系统已经演化成多种类型,其中,Cas9通过引导RNA(gRNA)切割外源DNA的特性被广泛研究和应用到基因编辑领域。Cas9系统具有多种亚型,如II-A、II-B和II-C ...
这项研究颠覆了“PAM 越宽松越好”的传统认知,揭示特异性与效率的精准平衡才是关键。 CRISPR-Cas9 被誉为“基因魔剪”,但其编辑效率在不同场景 ...
CRISPR-Cas9 基因编辑在学术和临床广泛应用,但其潜在遗传毒性风险,如大片段插入(LgIns)研究不足。研究人员通过多种实验,分析不同供体及编辑方案下的 LgIns 情况。结果发现 LgIns 普遍存在,且供体磷酸化可降低风险。该研究为安全使用 Cas9 编辑工具提供关键 ...
CRISPR/Cas9 screens require the delivery of a pool of guide RNAs (gRNA) and Cas9 nuclease into a cell line. The most common and successful delivery approach involves using an “all-in-one” lentiviral ...
In a recent study published in the journal Nano Today, researchers reviewed non-viral nano-vectors used for delivering the clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 ...
Using an adenovirus vector to deliver CRISPR/Cas9-based repressors to the mouse liver, the researchers reduced Pcsk9 and cholesterol levels in treated mice. While the experiment was successful ...
For in vivo CRISPR-Cas9 delivery, cryo-inactivated non-pathogenic KRAS-mutant NSCLC cells were used as a vector. This cell vehicle allows for highly targeted lung delivery via passive trapping by ...
The authors utilized antibiotic selection to detect positively transfected cells and generated single cell-derived clones because the CRISPR/Cas9 vector contained the puromycin resistance gene.