基因组编辑策略用于状细胞疾病中β-环球蛋白突变的向校正:从长椅到床边
Henna Butt1, Shruti Sathish1, Evan London1
1Cellular and Molecular Therapeutics Branch (CMTB), National Heart Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD 20814, USA.
概括
基因编辑通过纠正β-环球蛋白基因 (HBB) 提供了有希望的状细胞疾病 (SCD) 治疗方法. 目前的挑战包括效率,非目标效应和成本,但研究继续推进HBB校正策略.
科学领域:
- 血液学 血液学 血液学
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 状细胞疾病 (SCD) 是一种影响红细胞生理学的遗传疾病,导致多个器官系统的严重并发症.
- 目前用于SCD的疾病修饰疗法不能完全解决疾病的复杂性和严重性.
- 全基因移植和自身基因疗法显示出希望,但在实现普遍治愈方面面临挑战.
研究的目的:
- 审查状细胞疾病的基因校正策略的过去,现在和未来发展.
- 探索各种基因编辑技术的应用,以有针对性地纠正SCD中的β-环球蛋白基因 (HBB).
- 讨论与将基因编辑疗法从实验室研究转化为临床实践相关的局限性和挑战.
主要方法:
- 对SCD基因编辑技术的现有文献的审查,包括指核酶,TALENs,CRISPR-Cas,基础编辑和主要编辑.
- 对针对性HBB基因校正的ex vivo和in vivo方法的分析.
- 检查新兴基因编辑策略的有效性,安全性和成本效益.
主要成果:
- 基因编辑技术显示了针对SCD中的HBB基因的向校正的潜力.
- 外体和体内基因编辑方法在临床前和早期临床研究中显示出有前途的结果.
- 仍然存在重大挑战,包括实现高突变校正效率和最大限度地减少非目标效应.
结论:
- 基因编辑代表了通过HBB校正治愈状细胞疾病的前沿.
- 克服技术障碍,如效率,非目标效应和高治疗成本,对于临床翻译至关重要.
- 基因编辑技术的持续研究和开发对于建立可持续的SCD治愈的最佳策略至关重要.
相关概念视频
CRISPR
48.6K
Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
48.6K
Multiple Allele Traits
33.8K
The Concept of Multiple Allelism
33.8K
RNA Editing
8.8K
RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...
8.8K
iPS Cell Differentiation
2.6K
The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.
2.6K


