한빛사논문
Jeong Sang Sona,1, Chul-Yong Parkb,1, Gyunggyu Leea, Ji Young Parka, Hyo Jin Kima, Gyeongmin Kima, Kyun Yoo Chia, Dong-Hun Wooc, Choongseong Hanc, Sang Kyum Kimd, Han-Jin Parke, Dong-Wook Kimb,*, Jong-Hoon Kima,*
aLaboratory of Stem Cells and Tissue Regeneration, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, South Korea
bDepartment of Physiology, Yonsei University College of Medicine, Seoul, 03722, South Korea cDepartment of Stem Cell Biology, NEXEL Co., Ltd., Seoul, 07802, South Korea dCollege of Pharmacy, Chungnam National University, Daejeon, 34134, South Korea eDepartment of Predictive Toxicology, Korea Institute of Toxicology, Daejeon, 34114, South Korea
1These authors contributed equally: Jeong Sang Son, Chul-Yong Park.
*Corresponding author.
Abstract
The bleeding disorder hemophilia A (HA) is caused by a single-gene (F8) defect and its clinical symptom can be substantially improved by a small increase in the plasma coagulation factor VIII (FVIII) level. In this study, we used F8-defective human induced pluripotent stem cells from an HA patient (F8d-HA hiPSCs) and F8-corrected (F8c) HA hiPSCs produced by CRISPR/Cas9 genome engineering of F8d–HA hiPSCs. We obtained a highly enriched population of CD157+ cells from CRISPR/Cas9-edited F8c-HA hiPSCs. These cells exhibited multiple cellular and functional phenotypes of endothelial cells (ECs) with significant levels of FVIII activity, which was not observed in F8d-HA hiPSC-ECs. After transplantation, the engineered F8c–HA hiPSC-ECs dramatically changed bleeding episodes in HA animals and restored plasma FVIII activity. Notably, grafting a high dose of ECs substantially reduced the bleeding time during multiple consecutive bleeding challenges in HA mice, demonstrating a robust hemostatic effect (90% survival). Furthermore, the engrafted ECs survived more than 3 months in HA mice and reversed bleeding phenotypes against lethal wounding challenges. We also produced F8c-HA hiPSC-derived 3D liver organoids by assembling three different cell types in microwell devices and confirmed its therapeutic effect in HA animals. Our data demonstrate that the combination of genome-engineering and iPSC technologies represents a novel modality that allows autologous cell-mediated gene therapy for treating HA.
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