Generation of integration-free induced pluripotent stem cell lines derived from two patients with X-linked Alport syndrome (XLAS).

Skin biopsies were obtained from two male patients with X-linked Alport syndrome (XLAS) with hemizygous COL4A5 mutations in exon 41 or exon 46. Dermal fibroblasts were extracted and reprogrammed by nucleofection with episomal plasmids carrying OCT3/4, SOX2, KLF4 LIN28, L-MYC and p53 shRNA. The generated induced Pluripotent Stem Cell (iPSC) lines AS-FiPS2-Ep6F-28 and AS-FiPS3-Ep6F-9 were free of genomically integrated reprogramming genes, had the specific mutations, a stable karyotype, expressed pluripotency markers and generated embryoid bodies which were differentiated towards the three germ layers in vitro. These iPSC lines offer a useful resource to study Alport syndrome pathomechanisms and drug testing.