Generation of ASCL1-mCherry knock-in reporter in human embryonic stem cell line, WAe001-A-2E, using CRISPR/Cas9-based gene targeting

Stem Cell Res. 2024 Oct:80:103500. doi: 10.1016/j.scr.2024.103500. Epub 2024 Jul 24.

Abstract

Achaete-Scute Complex Homolog 1 (ASCL1) is a key regulator in the development and function of the nervous system, particularly in the process of neuronal and neuroendocrine cell differentiation. By employing the CRISPR/Cas9 system, we successfully established an ASCL1-mCherry knock-in human embryonic stem cell (hESC) line by inserting a P2A-mCherry fragment at the ASCL1 locus. The mCherry reporter effectively demonstrated the expression level of endogenous ASCL1 during the process of inducing pulmonary neuroendocrine cells (PNECs) from hESC. This reporter cell line holds significant value as a research tool for investigating the process of lung neuroendocrine cell differentiation, conducting drug screening, and exploring the underlying mechanisms of lung diseases associated with PNECs dysfunction.

MeSH terms

  • Basic Helix-Loop-Helix Transcription Factors* / genetics
  • Basic Helix-Loop-Helix Transcription Factors* / metabolism
  • CRISPR-Cas Systems*
  • Cell Differentiation
  • Cell Line
  • Gene Knock-In Techniques
  • Gene Targeting*
  • Genes, Reporter
  • Human Embryonic Stem Cells* / cytology
  • Human Embryonic Stem Cells* / metabolism
  • Humans
  • Red Fluorescent Protein

Substances

  • Basic Helix-Loop-Helix Transcription Factors
  • ASCL1 protein, human
  • Red Fluorescent Protein