We report the generation and characterization of a collagen III–mutant human iPSC line (JHUi007-A) and an isogenic gene-edited control (JHUi007-A-1). Reprogramming of dermal fibroblasts, obtained from a patient with vascular Ehlers-Danlos syndrome (vEDS) carrying the COL3A1 c.755G>T variant, was performed using integration-free Sendai virus. Isogenic controls were produced by CRISPR/Cas9 gene editing. Both lines displayed typical morphologies, expressed stemness factors, formed derivatives of all three germ layers, and maintained a normal karyotype. These lines readily differentiated into vascular smooth muscle cells with cytoskeletal differences between vEDS and control cells, confirming the utility of this resource to study disease processes.
Wu et al. (Sun,) studied this question.