相关实验视频

Updated: Jan 12, 2026

Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing

Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing

Published on: February 10, 2023

线粒体基编辑的不断变化的景观:精度,建模和治疗潜力的进步

Prathamesh Shelke¹, Sharon Tribhuvan¹, Ashish Kumar Agrahari²

¹Amity School of Biological Sciences, Amity University Punjab, Mohali, SAS Nagar 140306, India.

|October 31, 2025

概括

线粒体基编辑器 (mitoBEs) 具有先进的线粒体遗传学,可以实现精确的DNA转换. 第二代mitoBEs (mitoBEs v2) 在疾病建模和潜在治疗方面表现出高效率和安全性.

科学领域:

线粒体遗传学线粒体遗传学
分子生物学分子生物学
基因编辑技术基因编辑技术

背景情况:

线粒体遗传学在精确编辑方面面临限制.
像TALENs这样的早期工具效率较低.
线粒体基编辑器 (mitoBEs) 出现以应对这些挑战.

研究的目的:

审查 mitoBEs 的发展和进步.
突出第二代mitoBEs (mitoBEs v2) 的能力.
讨论 mitoBEs 在治疗线粒体疾病中的治疗潜力.

主要方法:

从早期的工具到当前的系统,追踪 mitoBEs 的演变.
开发和评估第二代mitoBEs (mitoBEs v2).
利用循环RNA (circRNA) 作为传递载体来提高编辑效率.

主要成果:

mitoBEs v2可以精确地转换C•G → T•A和A•T → G•C.
超过70个小鼠mtDNA突变与人类病原体变异相比较被确定.
使用circRNA传递,编辑效率提高了82%以上,没有观察到异目标效应.
为利氏综合征和LHN等线粒体疾病生成了忠实的小鼠模型.
与以前的策略相比,mitoBEs v2表现出更好的特异性,稳定性和安全性.

结论:

mitoBEs代表了线粒体遗传学的重大进步.
mitoBEs v2为编辑线粒体DNA提供了更高的精度,效率和安全性.
这些进步有助于创建精确的疾病模型,并为精准医学中的治疗应用提供了希望.

关键词:

在ABE中,ABE是ABE.欧洲央行 (CBE) 已经开始.线粒体疾病是线粒体疾病.拖延时间拖延时间环RNA 环RNA 是一个环RNA.在 mitoBEs 中.我们的mtDNA mtDNA

更多相关视频

Efficient PAM-Less Base Editing for Zebrafish Modeling of Human Genetic Disease with zSpRY-ABE8e

Efficient PAM-Less Base Editing for Zebrafish Modeling of Human Genetic Disease with zSpRY-ABE8e

Published on: February 17, 2023

Modeling Mitochondrial Disease Using Brain Organoids: A Focus on Mitochondrial Encephalomyopathy, Lactic Acidosis, and Stroke-like Episodes

Modeling Mitochondrial Disease Using Brain Organoids: A Focus on Mitochondrial Encephalomyopathy, Lactic Acidosis, and Stroke-like Episodes

Published on: October 10, 2025

相关概念视频

Animal Mitochondrial Genetics

Animal Mitochondrial Genetics

Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...

RNA Editing

RNA Editing

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...

CRISPR

CRISPR

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...