CRISPR/Cas9を用いたH9由来RB1ノックアウトヒト胚性幹細胞株の樹立

RB1 is a tumor suppressor gene which plays a crucial role in cell cycle and cellular differentiation. Mutations or loss of RB1 are associated with retinoblastoma and a variety of other cancers. We generated RB1 knockout human embryonic stem cell (hESC) lines (H9) using CRISPR/Cas9-mediated gene targeting. These RB1-deficient cell lines maintain typical stem cell morphology, normal karyotype and expression of pluripotent marker genes. Furthermore, they retain their in vivo differentiation capacity, enabling the generation of multiple cell lineages. These RB1 knockout hESC lines provide valuable models for investigating the role of RB1 in tumorigenesis, neurodevelopment, and cell cycle regulation.