Spatial and Temporal Control of CRISPR-Cas9-Mediated Gene Editing Delivered via a Light-Triggered Liposome System

ACS Appl Mater Interfaces. 2020 Nov 25;12(47):52433-52444. doi: 10.1021/acsami.0c16380. Epub 2020 Nov 11.

Abstract

The CRISPR-Cas9 and related systems offer a unique genome-editing tool allowing facile and efficient introduction of heritable and locus-specific sequence modifications in the genome. Despite its molecular precision, temporal and spatial control of gene editing with the CRISPR-Cas9 system is very limited. We developed a light-sensitive liposome delivery system that offers a high degree of spatial and temporal control of gene editing with the CRISPR-Cas9 system. We demonstrated its efficient protein release by respectively assessing the targeted knockout of the eGFP gene in human HEK293/GFP cells and the TNFAIP3 gene in TNFα-induced HEK293 cells. We further validated our results at a single-cell resolution using an in vivo eGFP reporter system in zebrafish (77% knockout). These findings indicate that light-triggered liposomes may have new options for precise control of CRISPR-Cas9 release and editing.

Keywords: CRISPR-Cas9; light triggering; liposomes; protein release; temporal control.

MeSH terms

  • Animals
  • CRISPR-Cas Systems / genetics*
  • Embryo, Nonmammalian / metabolism
  • Gene Editing / methods*
  • Gene Expression / drug effects
  • Genes, Reporter
  • Green Fluorescent Proteins / genetics
  • Green Fluorescent Proteins / metabolism
  • HEK293 Cells
  • Humans
  • Light
  • Liposomes / chemistry*
  • Singlet Oxygen / metabolism
  • Tumor Necrosis Factor alpha-Induced Protein 3 / genetics
  • Tumor Necrosis Factor alpha-Induced Protein 3 / metabolism
  • Tumor Necrosis Factor-alpha / pharmacology
  • Zebrafish / growth & development
  • Zebrafish / metabolism

Substances

  • Liposomes
  • Tumor Necrosis Factor-alpha
  • enhanced green fluorescent protein
  • Green Fluorescent Proteins
  • Singlet Oxygen
  • TNFAIP3 protein, human
  • Tumor Necrosis Factor alpha-Induced Protein 3