Continuously cultivated iPSCs with chromosome 21 trisomy spontaneously reverted to normal diploids. This trisomy rescue occurred without genetic manipulation, chemical treatment, or exposure to irradiation. The revertant cells can serve as a reference for drug screening and as raw materials for regenerative medicine and cell-based therapy.
- Momoko Inoue
- Kazuhiro Kajiwara
- Akihiro Umezawa