Abstract
Forkhead box protein J1 (FOXJ1), a member of the forkhead family, is an important transcription factor regulating multiciliated cell differentiation and motile ciliogenic program. Here, we established a FOXJ1- EGFP knock-in human embryonic stem cell (hESC) line by inserting a P2A-EGFP gene cassette of FOXJ1 using CRISPR/Cas9 system. The reporter cell line retained a normal karyotype, expressed comparable pluripotent marker genes, and maintained differentiation potential. This reporter cell line enables live identification of multiciliated cells during the general lung differentiation and will be a valuable tool for studying the multiciliated cell differentiation, ciliogenesis and mechanism of related pulmonary diseases.
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