Characterization of TRNDi009-C iPSC line. A) Left: phase contrast imaging of TRNDi009-C colonies grown on Geltrex at passage 6. Right: Representative immunofluorescent images of iPSCs positive for stem cell markers: SOX2, OCT4, NANOG, and SSEA4. Nucleus is labelled with Hoechst 33342 (blue). B) Cytogenetic analysis showing a normal karyotype (46, XX). C) Detection of heterozygous mutation of a p.L302P (c.905 T > C) in exon 2 of the SMPD1 gene. D) Flow cytometry analysis of pluripotency protein markers: NANOG and TRA-1–60. E) RT-PCR verification for the clearance of the Sendai virus from reprogrammed cells. Sendai virus vector transduced fibroblasts were used as a positive control. F) Pathological analysis of teratoma from TRNDi009-C iPSC, showing a normal ectodermal, mesodermal, and endodermal differentiation.