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Updated: Sep 2, 2025

An In Vitro Approach to Study Mitochondrial Dysfunction: A Cybrid Model
Published on: March 9, 2022
Mitochondrial DNA maintenance defects: potential therapeutic strategies
Mohammed Almannai1, Ayman W El-Hattab2, Mahshid S Azamian3
1Genetics and Precision Medicine Department (GPM), King Abdullah Specialized Children's Hospital (KASCH), King Abdulaziz Medical City, Ministry of National Guard Health Affairs (MNG-HA), Riyadh, Saudi Arabia.
Mitochondrial DNA (mtDNA) maintenance defects arise from impaired nuclear-encoded protein import. This review explores emerging preclinical and clinical trials for treating these complex genetic disorders.
Area of Science:
- Cellular Biology
- Genetics
- Biochemistry
Background:
- Mitochondrial DNA (mtDNA) replication requires nuclear-encoded proteins for genome maintenance.
- Defects lead to mtDNA depletion or deletions, causing diverse clinical symptoms.
- Current treatments for mtDNA maintenance defects are limited.
Purpose of the Study:
- To review recent preclinical studies on mtDNA maintenance defects.
- To discuss current and future clinical trials for therapeutic options.
- To provide an overview of potential treatments for various mtDNA maintenance defects.
Main Methods:
- Literature review of preclinical studies.
- Analysis of ongoing and planned clinical trials.
- Synthesis of current knowledge on mtDNA maintenance defect pathophysiology.
Main Results:
- Growing number of preclinical studies and clinical trials.
- Improved understanding of disease mechanisms and natural history.
- Identification of potential therapeutic strategies.
Conclusions:
- Therapeutic landscape for mtDNA maintenance defects is evolving.
- Preclinical research and clinical trials show promise.
- Further investigation is needed to develop effective treatments.
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