Establishment of an induced pluripotent stem cell line PUMCHi004-A from a hereditary transthyretin amyloid cardiomyopathy patient with transthyretin (TTR) p.Asp38Asn mutation.

Hereditary transthyretin amyloid cardiomyopathy is cardiac involvement in systemic transthyretin amyloidosis. For the first time, we generated induced pluripotent stem cell (iPSC) line of hATTR-CM carrying the TTR mutation p.Asp38Asn. We isolated peripheral blood mononuclear cells from the patient's peripheral blood. The reprogramming of PBMCs achieved a pluripotent state by the transfection of non-integrated episomal vectors. We demonstrated pluripotency with the presence of cell surface markers, the expression of pluripotency-related genes and the ability to form teratoma composed of three germ layers in vivo. This iPSC line is a useful model for studying the pathogenic mechanism of TTR p.Asp38Asn mutation.