L H Cheng1, Y Liu, T Niu. 1. Department of Hematology and Research Laboratory of Hematology, West China Hospital, Sichuan University, Chengdu 610041, China.
Abstract
Objective: Using CRISPR-Cas9 gene editing technology to achieve a number of genes co-deletion on the same chromosome. Methods: CRISPR-Cas9 lentiviral plasmid that could induce deletion of Aloxe3-Alox12b-Alox8 cluster genes located on mouse 11B3 chromosome was constructed via molecular clone. HEK293T cells were transfected to package lentivirus of CRISPR or Cas9 cDNA, then mouse NIH3T3 cells were infected by lentivirus and genomic DNA of these cells was extracted. The deleted fragment was amplified by PCR, TA clone, Sanger sequencing and other techniques were used to confirm the deletion of Aloxe3-Alox12b-Alox8 cluster genes. Results: The CRISPR-Cas9 lentiviral plasmid, which could induce deletion of Aloxe3-Alox12b-Alox8 cluster genes, was successfully constructed. Deletion of target chromosome fragment (Aloxe3-Alox12b-Alox8 cluster genes) was verified by PCR. The deletion of Aloxe3-Alox12b-Alox8 cluster genes was affirmed by TA clone, Sanger sequencing, and the breakpoint junctions of the CRISPR-Cas9 system mediate cutting events were accurately recombined, insertion mutation did not occur between two cleavage sites at all. Conclusion: Large fragment deletion of Aloxe3-Alox12b-Alox8 cluster genes located on mouse chromosome 11B3 was successfully induced by CRISPR-Cas9 gene editing system.
Objective: Using CRISPR-Cas9 gene editing technology to achieve a number of genes co-deletion on the same chromosome. Methods: CRISPR-Cas9 lentiviral plasmid that could induce deletion of Aloxe3-Alox12b-Alox8 cluster genes located on mouse 11B3 chromosome was constructed via molecular clone. HEK293T cells were transfected to package lentivirus of CRISPR or Cas9 cDNA, then mouseNIH3T3 cells were infected by lentivirus and genomic DNA of these cells was extracted. The deleted fragment was amplified by PCR, TA clone, Sanger sequencing and other techniques were used to confirm the deletion of Aloxe3-Alox12b-Alox8 cluster genes. Results: The CRISPR-Cas9 lentiviral plasmid, which could induce deletion of Aloxe3-Alox12b-Alox8 cluster genes, was successfully constructed. Deletion of target chromosome fragment (Aloxe3-Alox12b-Alox8 cluster genes) was verified by PCR. The deletion of Aloxe3-Alox12b-Alox8 cluster genes was affirmed by TA clone, Sanger sequencing, and the breakpoint junctions of the CRISPR-Cas9 system mediate cutting events were accurately recombined, insertion mutation did not occur between two cleavage sites at all. Conclusion: Large fragment deletion of Aloxe3-Alox12b-Alox8 cluster genes located on mouse chromosome 11B3 was successfully induced by CRISPR-Cas9 gene editing system.
Entities:
Keywords:
CRISPR-Cas9; Chromosomal large deletion; Gene editing; Hematologic malignancies
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