Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA; Department of Medicine, Division of Cardiology, Stanford University, Stanford, CA 94305, USA.
Department of Neurology, Stanford University, Stanford, CA 94305, USA.
Stem Cell Res. 2023 Jun;69:103095. doi: 10.1016/j.scr.2023.103095. Epub 2023 Apr 17.
Spinal muscular atrophy (SMA) is a severe neurodegenerative muscular disease caused by the homozygous loss of survival of motor neuron 1 (SMN1) genes. SMA patients exhibit marked skeletal muscle (SKM) loss, eventually leading to death. Here we generated two iPSC lines from two SMA type I patients with homozygous SMN1 mutations and validated the pluripotency and the ability to differentiate into three germ layers. The iPSC lines can be applied to generate skeletal muscles to model muscle atrophy of SMA that persists after treatment of motor neurons and will serve as a complementary platform for drug screening in vitro.
脊髓性肌萎缩症(SMA)是一种严重的神经退行性肌肉疾病,由运动神经元 1(SMN1)基因纯合缺失引起。SMA 患者表现出明显的骨骼肌(SKM)丧失,最终导致死亡。在这里,我们从两个 SMA Ⅰ型患者的纯合 SMN1 突变中生成了两个 iPSC 系,并验证了它们的多能性和分化为三个胚层的能力。这些 iPSC 系可用于生成骨骼肌,以模拟治疗运动神经元后仍持续存在的 SMA 肌肉萎缩,它们将作为体外药物筛选的补充平台。