中国神经再生研究(英文版) ›› 2024, Vol. 19 ›› Issue (9): 2057-2067.doi: 10.4103/1673-5374.391190

• 原著:退行性病与再生 • 上一篇    下一篇

单侧转染 rNurr1-V5减轻α-突触核蛋白病帕金森大鼠双侧多巴胺能神经元变性和行为障碍

  

  • 出版日期:2024-09-15 发布日期:2024-01-26

Unilateral rNurr1-V5 transgene expression in nigral dopaminergic neurons mitigates bilateral neuropathology and behavioral deficits in parkinsonian rats with α-synucleinopathy

Bismark Gatica-Garcia1, Michael J. Bannon2, #, Irma Alicia Martínez-Dávila1, Luis O. Soto-Rojas3, 4, David Reyes-Corona5, Lourdes Escobedo1, Minerva Maldonado-Berny1, ME Gutierrez-Castillo6, Armando J. Espadas-Alvarez6, Manuel A. Fernandez-Parrilla7, Juan U. Mascotte-Cruz1, CP Rodríguez-Oviedo5, Irais E. Valenzuela-Arzeta1, Claudia Luna-Herrera8, Francisco E. Lopez-Salas9, Jaime Santoyo-Salazar10, Daniel Martinez-Fong1, 5, 11, *, #   

  1. 1Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados, Ciudad de México, México; 2Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA; 3Laboratorio de Patogénesis Molecular, Carrera Médico Cirujano, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla de Baz, México; 4Red de Medicina para la Educación y Desarrollo y la Investigación Científica de Iztacala (Red MEDICI), Carrera Médico Cirujano, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla de Baz, México; 5Nanoparticle Therapy Institute, Aguascalientes, México; 6Departamento de Biociencias e Ingeniería, Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo, Instituto Politécnico Nacional, Ciudad de México, México; 7Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Ciudad de México, México; 8Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, México; 9Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México; 10Departamento de Física, Centro de Investigación y de Estudios Avanzados, Ciudad de México, México; 11Programa de Nanociencias y Nanotecnología, Centro de Investigación y de Estudios Avanzados, Ciudad de México, México
  • Online:2024-09-15 Published:2024-01-26
  • Contact: Daniel Martinez-Fong, MD, PhD, daniel.martinezfong@cinvestav.mx.

摘要:

作者最近的研究通过给予大鼠单侧黑质内注射β-谷甾醇β-D-葡萄糖苷(BSSG)方式,建立了帕金森病模型,其特点是α-突触核蛋白的损伤从单侧开始,但随着时间的推移会向双侧扩散并加重,从而复制了帕金森病的一些临床特征。帕金森病患者可出现NURR1 基因的突变,NURR1 介导的神经生理和神经营养功能下降。为了解黑质多巴胺能神经元中单侧表达 rNurr1-V5 转基因是否可减轻α-突触核蛋白病帕金森大鼠的双侧神经病理学和行为缺陷,实验观察了大鼠单侧β-谷甾醇β-D-葡萄糖苷病变后第30天,以NTS-多聚物向黑质(SN)转染rNurr1-V5转基因是否会影响转染后第30天的双侧神经病理学和感觉运动障碍。结果发现,rNurr1-V5的表达而非绿色荧光蛋白(阴性对照)的表达可减轻β-谷甾醇β-D-葡萄糖苷诱导的神经病理改变。相应地,酪氨酸羟化酶阳性(TH+)细胞数量和分支的增加发生在双侧SN,而在纹状体中TH+分支增加。此外,TH+细胞显示较少的衰老标志物β-半乳糖苷酶和较多的神经元-细胞骨架标志物βⅢ-微管蛋白和脑源性神经营养因子(BDNF)。活化的小胶质细胞(电离钙结合适配分子 1 呈阳性)和神经毒性星形胶质细胞(胶质纤维酸性蛋白 (GFAP) 和补体成分 3 呈阳性)明显减少,而神经营养性星形胶质细胞(GFAP 和 S100 钙结合蛋白 A10 呈阳性)增加。这些效应随着黑质系统中α-突触核蛋白聚集的双侧减少而出现,从而改善了感觉运动行为表现。这些结果表明,在黑质多巴胺能神经元中单侧 rNurr1-V5 转基因可减轻神经退行性变、神经炎症、α-突触核蛋白聚集和感觉运动障碍。神经营养性星形胶质细胞和 BDNF 的增加可介导 Nurr1 的作用,从而支持其在帕金森病中的潜在临床应用。

https://orcid.org/0000-0002-2934-8380 (Daniel Martinez-Fong)

Abstract: Parkinsonism by unilateral, intranigral β-sitosterol β-D-glucoside administration in rats is distinguished in that the α-synuclein insult begins unilaterally but spreads bilaterally and increases in severity over time, thus replicating several clinical features of Parkinson’s disease, a typical α-synucleinopathy. As Nurr1 represses α-synuclein, we evaluated whether unilateral transfected of rNurr1-V5 transgene via neurotensin-polyplex to the substantia nigra on day 30 after unilateral β-sitosterol β-D-glucoside lesion could affect bilateral neuropathology and sensorimotor deficits on day 30 post-transfection. This study found that rNurr1-V5 expression but not that of the green fluorescent protein (the negative control) reduced β-sitosterol β-D-glucoside-induced neuropathology. Accordingly, a bilateral increase in tyrosine hydroxylase-positive cells and arborization occurred in the substantia nigra and increased tyrosine hydroxylase-positive ramifications in the striatum. In addition, tyrosine hydroxylase-positive cells displayed less senescence marker β-galactosidase and more neuron-cytoskeleton marker βIII-tubulin and brain-derived neurotrophic factor. A significant decrease in activated microglia (positive to ionized calcium-binding adaptor molecule 1) and neurotoxic astrocytes (positive to glial fibrillary acidic protein and complement component 3) and increased neurotrophic astrocytes (positive to glial fibrillary acidic protein and S100 calcium-binding protein A10) also occurred in the substantia nigra. These effects followed the bilateral reduction in α-synuclein aggregates in the nigrostriatal system, improving sensorimotor behavior. Our results show that unilateral rNurr1-V5 transgene expression in nigral dopaminergic neurons mitigates bilateral neurodegeneration (senescence and loss of neuron-cytoskeleton and tyrosine hydroxylase-positive cells), neuroinflammation (activated microglia, neurotoxic astrocytes), α-synuclein aggregation, and sensorimotor deficits. Increased neurotrophic astrocytes and brain-derived neurotrophic factor can mediate the rNurr1-V5 effect, supporting its potential clinical use in the treatment of Parkinson’s disease.

Key words: A1 astrocytes, A2 astrocytes, gene therapy, microglia, motor deficits, nanoparticles, neurodegeneration, neuroinflammation, senescence, α-synuclein aggregates