对遗传性听力损失的基因治疗
Zeming Fu1, Liping Zhao2, Yingyuan Guo1
1Department of Otolaryngology- Head and Neck Surgery, The Second Hospital of Jilin University, 4026 Yatai Street, Changchun 130022, China.
Hearing research
|December 1, 2024
概括
基因疗法通过纠正基因突变,为遗传性听力损失 (HHL) 提供了希望. 腺相关病毒 (AAV) 载体在提供基因疗法方面表现有前途,在某些情况下恢复听力.
科学领域:
- 遗传学 是一个遗传学.
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 分子生物学分子生物学
背景情况:
- 遗传性听力损失 (HHL) 影响数百万,遗传因素约占严重病例的50%.
- 超过150个基因与听力损失有关,凸显了遗传性聋的复杂性.
- 基因疗法为治疗由特定基因突变引起的疾病提供了潜在的解决方案.
研究的目的:
- 根据动物模型,审查基因治疗遗传性听力损失 (HHL) 的最新进展.
- 探索各种基因疗法策略,包括基因编辑工具,传递载体和HHL的管理途径.
- 讨论临床基因疗法应用的优点,局限性和未来挑战.
主要方法:
- 对HHL的基因治疗现有文献的综述,重点是动物模型研究.
- 分析CRISPR/Cas基因编辑技术及其在HHL研究中的应用.
- 评估病毒载体,特别是腺相关病毒 (AAV),用于内耳基因传递.
主要成果:
- 克里斯普尔/卡斯基因编辑加速了对HHL的基因疗法的开发.
- 腺相关病毒 (AAV) 载体已被证明是安全有效的,可以在动物模型中将基因传递到内耳细胞.
- 通过AAV介导的基因疗法已经显示出在患有遗传性聋的儿童中恢复听力的潜力.
结论:
- 基因疗法,特别是使用AAV载体,对治疗遗传性听力损失具有重大前景.
- 需要进一步的研究来确定特定的HHL类型,并优化基因治疗方法的临床使用.
- 解决当前基因疗法方法的局限性和挑战对于HHL治疗中成功的临床转化至关重要.
相关概念视频
Gene Therapy
25.2K
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...
25.2K
Pleiotropy
39.8K
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
39.8K
Unrenewable Cells
2.3K
In humans, the photoreceptor cells of the eye and sensory hair cells of the ear lack stem cells. These cells are thus unrenewable and cannot be replaced when they are damaged or destroyed.
Photoreceptors
The retina is composed of several layers and contains specialized cells called photoreceptors. The photoreceptors (rods and cones) change their membrane potential when stimulated by light energy. There are two types of photoreceptors—rods and cones—which differ in the shape of...
Photoreceptors
The retina is composed of several layers and contains specialized cells called photoreceptors. The photoreceptors (rods and cones) change their membrane potential when stimulated by light energy. There are two types of photoreceptors—rods and cones—which differ in the shape of...
2.3K
What is Genetic Engineering?
73.6K
Overview
73.6K
In-vitro Mutagenesis
13.8K
To learn more about the function of a gene, researchers can observe what happens when the gene is inactivated or “knocked out,” by creating genetically engineered knockout animals. Knockout mice have been particularly useful as models for human diseases such as cancer, Parkinson’s disease, and diabetes.
13.8K
Genetic Screens
4.9K
Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
4.9K


