Fig. 2From: Differentiation of primordial germ cells from premature ovarian insufficiency-derived induced pluripotent stem cellsPOI-1-iPSCs showed the characteristics of human ESCs. a All colonies stained positive for OCT4, NANOG, SSEA-3, SSEA-4, TRA-1-60, and TRA-1-81. b POI-1-iPSCs were AKP positive. c The G-banding of POI-1-iPSCs at passage 20 showed a normal karyotypeBack to article page