Fasudil alleviates the vascular endothelial dysfunction and several phenotypes of Fabry disease.

Fabry disease (FD), a lysosomal storage disorder, is caused by defective α-galactosidase (GLA) activity, which results in the accumulation of globotriaosylceramide (Gb3) in endothelial cells and leads to life-threatening complications such as left ventricular hypertrophy (LVH), renal failure, and stroke. Enzyme replacement therapy (ERT) results in Gb3 clearance; however, because of a short half-life in the body and the high immunogenicity of FD patients, ERT has a limited therapeutic effect, particularly in patients with late-onset disease or progressive complications. Because vascular endothelial cells (VECs) derived from FD-induced pluripotent stem cells display increased thrombospondin-1 (TSP1) expression and enhanced SMAD2 signaling, we screened for chemical compounds that could downregulate TSP1 and SMAD2 signaling. Fasudil reduced the levels of p-SMAD2 and TSP1 in FD-VECs and increased the expression of angiogenic factors. Furthermore, fasudil downregulated the endothelial-to-mesenchymal transition (EndMT) and mitochondrial function of FD-VECs. Oral administration of fasudil to FD mice alleviated several FD phenotypes, including LVH, renal fibrosis, anhidrosis, and heat insensitivity. Our findings demonstrate that fasudil is a novel candidate for FD therapy. Copyright © 2023 The American Society of Gene and Cell Therapy. Published by Elsevier Inc. All rights reserved.

Citation

Jong Bin Choi, Dong-Won Seol, Hyo-Sang Do, Hee-Young Yang, Taek-Min Kim, Youkyeong Gloria Byun, Jae-Min Park, Jinhyuk Choi, Seon Pyo Hong, Won-Suk Chung, Jae Myoung Suh, Gou Young Koh, Beom Hee Lee, Gabbine Wee, Yong-Mahn Han. Fasudil alleviates the vascular endothelial dysfunction and several phenotypes of Fabry disease. Molecular therapy : the journal of the American Society of Gene Therapy. 2023 Apr 05;31(4):1002-1016

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PMID: 36755495

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