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造血干细胞基因疗法改善了临床相关的多重硫酶缺乏症小鼠模型的结果

Vi Pham¹, Lucas Tricoli², Xinying Hong³

¹Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.

Molecular therapy : the journal of the American Society of Gene Therapy

|August 22, 2024

概括

用SUMF1基因疗法移植血造干细胞在多重硫酶缺乏症 (MSD) 中显示出有前途. 这种方法改善了这种严重的溶酶体储存障碍的小鼠模型中的生化标志物和神经认知功能.

科学领域:

生物化学生物化学
遗传学遗传学是一个
神经科学是一个神经科学.

背景情况:

多重硫酶缺乏症 (MSD) 是一种严重的溶酶体储存障碍.
它是由SUMF1基因中的致病变体引起的,影响所有细胞硫酸酶.
这导致了渐进的多系统性并发症.

研究的目的:

为了评估血造干细胞移植 (HSCT) 与体外SUMF1lentiviral基因疗法 (GT) 在MSD的小鼠模型.
评估治疗对改善疾病标志物和功能结果的疗效.

主要方法:

在MSD患者衍生细胞中测试了SUMF1静脉病毒载体.
向MSD小鼠在症状出现后给予HSCT-GT.
评估了蛋白质表达,硫酶活动,葡萄糖氨基糖积,神经炎症和神经认知功能.

主要成果:

SUMF1基因疗法改善了蛋白质表达,硫酶活动,并减少了患者细胞中糖氨基酸糖的积累.
在体内,HSCT-GT在MSD小鼠的受影响器官中挽救了生化缺陷.
接受治疗的小鼠显示神经炎症减少,神经认知功能改善.

结论:

在MSD的小鼠模型中,SUMF1 HSCT-GT有效地改善了生化缺陷.
基因治疗方法还增强了功能性疾病标志物,包括神经认知结果.
这些发现支持SUMF1 HSCT-GT作为MSD治疗策略的潜力.

关键词:

联邦经济学基金 (FGE)在MSD中,使用的是MSD.总的来说,这是一个SUMF1.在ex vivo基因疗法中使用.形成甲基甘氨酸产生酶的酶.血液造血干细胞移植的结果是什么?伦维病毒基因疗法是用在基因治疗中.溶酶体储存障碍溶酶体储存障碍多重硫酸盐酶缺乏症多重硫酸酶缺乏症硫酸酶修饰因子1的修饰因子1

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