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CRISPR/Cas9 is a straightforward genome-editing technique that is implemented across disciplines and research areas. However, in keratinocytes, CRISPR/Cas9 can be particularly difficult due to variable genome-editing efficiency, reduced cell viability, and difficulties during (sub)cloning of gene-edited keratinocyte populations. Here, we provide a step-by-step detailed protocol for the genetic manipulation of human (primary) keratinocytes, including widely accepted procedures for the analysis of CRISPR/Cas9 efficiency, (sub)cloning procedures to select heterozygous or homozygous keratinocytes, and off-target genome-editing analysis.

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Genetic Engineering of Human Keratinocytes Using CRISPR/Cas9 Ribonucleoprotein Complexes or Modified Cas9-Encoding mRNAs

  • 实验方案

  • 发表日期：

    2026年

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  • Jaimy A. Klijnhout,
  • Eline A. W. Senders,
  • Ellen H. van den Bogaard,
  • Jos P. H. Smits

摘要

CRISPR/Cas9 is a straightforward genome-editing technique that is implemented across disciplines and research areas. However, in keratinocytes, CRISPR/Cas9 can be particularly difficult due to variable genome-editing efficiency, reduced cell viability, and difficulties during (sub)cloning of gene-edited keratinocyte populations. Here, we provide a step-by-step detailed protocol for the genetic manipulation of human (primary) keratinocytes, including widely accepted procedures for the analysis of CRISPR/Cas9 efficiency, (sub)cloning procedures to select heterozygous or homozygous keratinocytes, and off-target genome-editing analysis.