中国神经再生研究(英文版) ›› 2024, Vol. 19 ›› Issue (1): 212-219.doi: 10.4103/1673-5374.375328

• 原著:退行性病与再生 • 上一篇    下一篇

利用基因修饰间充质干细胞提高β氨基己糖苷酶A的活性

  

  • 出版日期:2024-01-15 发布日期:2023-08-02
  • 基金资助:
    喀山联邦大学的科学活动领域补贴

Increasing β-hexosaminidase A activity using genetically modified mesenchymal stem cells

Alisa A. Shaimardanova1, Daria S. Chulpanova1, Valeriya V. Solovуeva1, Shaza S. Issa1, Aysilu I. Mullagulova1, Angelina A. Titova1, Yana O. Mukhamedshina1, 2, Anna V. Timofeeva1, Alexander M. Aimaletdinov1, Islam R. Nigmetzyanov1, Albert A. Rizvanov1,*   

  1. 1Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia; 2Department of Histology, Cytology and Embryology, Kazan State Medical University, Kazan, Russia
  • Online:2024-01-15 Published:2023-08-02
  • Contact: Albert A. Rizvanov, PhD, Dr Sci, rizvanov@gmail.com.
  • Supported by:
    This work was supported by the subsidy allocated to Kazan Federal University for the state assignment #0671-2020-0058 in the sphere of scientific activities (to AAR) and the Kazan Federal University Strategic Academic Leadership Program (PRIORITY-2030).

摘要:

GM2神经节苷脂沉积症是一组常染色体隐性溶酶体储存疾病,其是由于溶酶体酶β氨基己糖苷酶A(HexA)缺乏导致的,该酶负责GM2神经节苷脂的降解。HexA缺乏导致GM2神经节苷脂在神经细胞中积累,导致严重的神经退行性改变和神经炎症。细胞介导的基因疗法被认为是治疗GM2神经节苷脂沉积症的一种有希望的方法。实验评估了基因修饰间充质干细胞MSCs-HEXA-HEXB在GM 2神经节苷脂沉积症B型Tay-Sachs病(TSD)患者细胞中减轻HexA缺乏的能力,并分析了MSCs在体内的功能和生物分布。与MSCs-HEXA-HEXB相互作用后,突变体MSCs显示了HexA缺失交叉校正的有效性。动物体内实验结果还显示,MSCs-HEXA-HEXB表达有功能活性的HexA酶,而且静脉注射细胞不会引起动物的免疫反应。此实验证实了基因修饰间充质干细胞有治疗GM2神经节苷脂沉积症的潜力。

http://orcid.org/0000-0002-9427-5739 (Albert A. Rizvanov)

Abstract: GM2 gangliosidoses are a group of autosomal-recessive lysosomal storage disorders. These diseases result from a deficiency of lysosomal enzyme β-hexosaminidase A (HexA), which is responsible for GM2 ganglioside degradation. HexA deficiency causes the accumulation of GM2-gangliosides mainly in the nervous system cells, leading to severe progressive neurodegeneration and neuroinflammation. To date, there is no treatment for these diseases. Cell-mediated gene therapy is considered a promising treatment for GM2 gangliosidoses. This study aimed to evaluate the ability of genetically modified mesenchymal stem cells (MSCs-HEXA-HEXB) to restore HexA deficiency in Tay-Sachs disease patient cells, as well as to analyze the functionality and biodistribution of MSCs in vivo. The effectiveness of HexA deficiency cross-correction was shown in mutant MSCs upon interaction with MSCs-HEXA-HEXB. The results also showed that the MSCs-HEXA-HEXB express the functionally active HexA enzyme, detectable in vivo, and intravenous injection of the cells does not cause an immune response in animals. These data suggest that genetically modified mesenchymal stem cells have the potentials to treat GM2 gangliosidoses. 

Key words: adeno-associated viral vectors, cell therapy, cell-mediated gene therapy, gene therapy, GM2 gangliosidosis, Sandhoff disease, Tay-Sachs disease, β-hexosaminidase