丁香实验_LOGO
登录
提问
我要登录
|免费注册
点赞
收藏
wx-share
分享

Retroviral Modification of Mesenchymal Stem Cells for Gene Therapy of Hemophilia

互联网

445
Mesenchymal stem cells (MSCs) are a promising target for the delivery of secreted proteins due to their ease of isolation, expansion, and genetic modification. The bleeding disorder hemophilia A results from the deficiency of a secreted blood clotting factor termed factor VIII (fVIII). Hemophilia A could be cured by gene-transfer-based procedures targeting virtually any cell type, including MSCs. Here, we describe methods for retroviral modification of MSCs incorporating a high-expression porcine (HEP)-fVIII transgene and a murine model of hemophilia A. MSCs were isolated from bone marrow of hemophilia A mice, expanded, and transduced ex vivo. Genetically modified MSCs secreted high levels of HEP-fVIII into the conditioned medium. HEP-fVIII was purified from the conditioned medium and demonstrated to have a specific activity, relative electrophoretic mobility, and proteolytic activation pattern similar to HEP-fVIII produced by other commercial cell lines. Collectively, these data support the concept that MSCs can be utilized as a cellular vehicle for successful gene-transfer-based therapy of hemophilia A and other disorders resulting from the deficiency of a secreted protein.
提问
扫一扫
丁香实验小程序二维码
实验小助手
丁香实验公众号二维码
扫码领资料
反馈
TOP
打开小程序