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The karyotypes of human ESCs and iPSCs. WA07 and iPS(IMR90)-4 cells were first cultured in 0.5% NFC hydrogel and then transferred to Matrigel-coated dishes after a 24-h treatment with 300 μg cellulase/mg cellulose at 37°C. G-banding chromosome analysis showed normal chromosomes in WA07, p41 (A) and iPS(IMR90)-4, and p18+45(20) (B) cells.
