相关实验视频

Updated: May 12, 2025

Selection-dependent and Independent Generation of CRISPR/Cas9-mediated Gene Knockouts in Mammalian Cells

Selection-dependent and Independent Generation of CRISPR/Cas9-mediated Gene Knockouts in Mammalian Cells

Published on: June 16, 2017

使用CRISPR基因组编辑,使用组合正负选择系统

Ishrya Sharma¹, Kerisa Hall¹, Shannon Moonah^1,2

¹Department of Medicine, University of Florida, GainesvilleFlorida, United States of America.

|May 6, 2025

概括

这项研究引入了一种新的多重表达和双重选择 (MEDS) 系统,以增强CRISPR基因组编辑以实现精确的单核酸替代,从而改善对遗传变异的研究.

科学领域:

遗传学和基因组学遗传学和基因组学
分子生物学分子生物学
生物技术是生物技术.

背景情况:

集群定期间隔的短时间的Palindromic重复 (CRISPR/Cas) 是一个关键的基因组编辑工具.
单核酸多态 (SNP) 代表了常见的人类遗传变异,但许多具有未知的意义.
当前的CRISPR技术在精确的单核酸替代方面存在局限性.

研究的目的:

开发一种改进的方法来生成基因组中的单个基因编辑.
克服现有的基于CRISPR的单核酸编辑技术的局限性.
调查未知意义的变异的生物相关性.

主要方法:

开发一个多重表达和双重选择 (MEDS) 系统.
将MEDS与CRISPR-Cas9技术集成在一起.
使用细胞氨酸脱氨酶/尿素酸转移酶 (CD/UPRT) 进行负选择,使用新氨酸转移酶II (NPT II) 进行正选择.

主要成果:

证明了MEDS系统用于生成单个基准编辑的可行性.
在血红蛋白β基因中成功引入了特定的点突变 (A→T).
产生的状血红蛋白作为MEDS协议的概念证明.

结论:

该MEDS系统提高了生成精确单核酸编辑的可行性.
这种方法为基因组编辑提供了一个有价值的替代方案,补充了CRISPR/Cas.
该方法有可能研究未知意义的遗传变异及其在疾病中的作用.

更多相关视频

Enhanced Genome Editing with Cas9 Ribonucleoprotein in Diverse Cells and Organisms

Enhanced Genome Editing with Cas9 Ribonucleoprotein in Diverse Cells and Organisms

Published on: May 25, 2018

A Rapid and Facile Pipeline for Generating Genomic Point Mutants in C. elegans Using CRISPR/Cas9 Ribonucleoproteins

A Rapid and Facile Pipeline for Generating Genomic Point Mutants in C. elegans Using CRISPR/Cas9 Ribonucleoproteins

Published on: April 30, 2018

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