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基于PCR的策略,将CRISPR/Cas9机制引入到造血细胞系中

Elisa González-Romero¹, Cristina Martínez-Valiente^1,2, Gema García-García^3,4,5

¹Hematology Research Group, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain.

|September 9, 2023

概括

研究人员开发了一种新的,简单的CRISPR-Cas9方法,用于在难以转移的白血病细胞中进行基因工程. 这种融合PCR技术避免了病毒载体,为血液学研究中的基因编辑提供了切实可行的替代方案.

科学领域:

血液学血液学血液学
分子生物学分子生物学
基因编辑基因编辑

背景情况:

急性髓性白血病 (AML) 是一种异质的克隆性疾病.
传染血细胞用于基因操纵,包括CRISPR/Cas9,是具有挑战性的.
现有的方法通常依赖于病毒载体,限制了可访问性.

研究的目的:

开发一种可访问的,非病毒战略,用于生成CRISPR构造.
在难以转移的白血病细胞系中实现高效的基因编辑.
验证一种基于PCR的新型融合方法,用于引入特定的基因突变.

主要方法:

使用聚变PCR的CRISPR构造的生成.
在白血病细胞 (NB4,HL60) 和HEK293细胞中引入PCR生成的结构.
通过准MYBL2并引入IDH2 R172突变来验证基因修饰.
利用Cas9表达细胞系进行高效的编辑.

主要成果:

成功生成并将基于PCR的CRISPR构造物输送到白血病细胞中.
证明了MYBL2的功能基因修饰和IDH2 R172突变的引入.
实现了与核蛋白策略相比较的突变引入效率.
确认没有可检测的目标外突变.

结论:

融合PCR策略提供了一个简单的,设备可访问的方法来创建CRISPR构造.
这种非病毒方法在具有挑战性的白血病细胞模型中对基因编辑有效.
该方法为血液学研究中的遗传修饰提供了病毒转导的可行替代方案.

关键词:

聚变PCR是一种聚变PCR.难以转移的细胞系难以转移.这种白血病是白血病.sgRNA 构建了 sgRNA 的结构.

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