对于Leber遗传光神经病变的基因疗法的当前和未来景观
Hoda Shamsnajafabadi1, Robert E MacLaren1,2, Jasmina Cehajic-Kapetanovic1,2
1Nuffield Laboratory of Ophthalmology, Department of Clinical Neurosciences, Oxford University, Oxford OX3 9DU, UK.
Cells
|August 11, 2023
概括
勒伯遗传性视神经病变 (LHON) 是一种导致失明的线粒体疾病. 基因疗法,特别是使用腺相关病毒载体进行ND4传递,在临床试验中显示出治疗LHON的前景.
科学领域:
- 眼科医生 眼科 眼科
- 遗传学 是一个遗传学.
- 线粒体生物学 线粒体生物学
背景情况:
- 勒伯遗传性视神经病变 (LHON) 是一种主要的线粒体遗传疾病,导致年轻人失明.
- 超过95%的LHON病例源于三个特定的线粒体DNA变异,影响复杂I子单元 (ND4,ND1,ND6).
- 疾病发病是由未知的遗传和环境因素引发的,导致临床过程变化和缺乏确定的治疗方法.
研究的目的:
- 讨论LHON的表型和基因型,包括不完整透率和性别偏见等复杂性.
- 审查目前和新兴的LHON治疗策略.
- 突出基因治疗的最新进展,特别是使用AAV载体的全基因治疗.
主要方法:
- 对LHON.现有文献的审查.
- 对新兴LHON疗法的临床试验数据的分析.
- 专注于由亚地诺相关病毒 (AAV) 载体介导的NADH脱酶子单元4 (ND4) 的传递.
主要成果:
- 全基因疗法目前处于先进的临床试验阶段 (第三阶段),而其他治疗方法则处于早期阶段.
- 最近使用AAV载体进行ND4输送的三项临床试验取得了成果.
- 突出显示了矢量设计的变化和全位转移的理由.
结论:
- 由于其遗传和环境触发因素,LHON给治疗开发带来了复杂的挑战.
- 全位基因疗法,特别是以AAV为媒介的ND4输送,是LHON的有前途的治疗途径.
- 进一步的研究和临床试验至关重要,以建立有效的LHON治疗方法.
相关概念视频
Glaucoma: Overview
621
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
621
Open Angle Glaucoma: Treatment
479
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
479
Angle Closure Glaucoma: Treatment
560
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
560
Gene Therapy
25.5K
Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be...
25.5K


