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Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing
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Research progress in mitochondrial gene editing technology.

Yichen Wang1,2, Ying Wang3,4, Yu Chen3,4

  • 1College of Life Sciences, Zhejiang University, Hangzhou 310058, China. 22107015@zju.edu.cn.

Zhejiang Da Xue Xue Bao. Yi Xue Ban = Journal of Zhejiang University. Medical Sciences
|August 29, 2023
PubMed
Summary
This summary is machine-generated.

Mitochondrial DNA (mtDNA) editing offers new genetic disease therapies. Nucleic acid-based CRISPR systems show promise for mtDNA editing, overcoming limitations of protein-recognition methods.

Keywords:
CRISPRGene editingMitochondrionNucleic acid deliveryReview

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Area of Science:

  • Mitochondrial biology and genetic disease therapeutics.

Background:

  • Mitochondrial DNA (mtDNA) mutations cause various genetic disorders.
  • Current protein-recognition mtDNA editing technologies (e.g., ZFN, TALEN, base editing) face challenges in complex sequence design, limiting widespread use.
  • CRISPR-based systems offer simpler nucleic acid recognition for mtDNA editing.

Purpose of the Study:

  • To review and classify current mitochondrial gene editing technologies based on recognition elements.
  • To discuss the principles, development, and future prospects of mtDNA editing.
  • To highlight the potential of nucleic acid recognition-based mtDNA editing.

Main Methods:

  • Classification of mtDNA editing technologies by recognition element (protein vs. nucleic acid).
  • Review of advancements in endogenous and exogenous mitochondrial import pathways.
  • Analysis of DNA repair mechanisms relevant to mitochondrial gene editing.

Main Results:

  • Protein-recognition mtDNA editing technologies have limitations in sequence design complexity.
  • CRISPR systems offer advantages in ease of design and modification for mtDNA editing.
  • Progress in understanding mitochondrial import and DNA repair pathways supports the feasibility of nucleic acid delivery into mitochondria.

Conclusions:

  • Nucleic acid recognition-based mtDNA editing, particularly CRISPR, holds significant therapeutic potential.
  • Overcoming delivery challenges is key to realizing the application of nucleic acid-based mtDNA editing.
  • Continued research into mitochondrial pathways will advance the field of mtDNA gene therapy.