Mouse models of oxidative phosphorylation defects: powerful tools to study the pathobiology of mitochondrial diseases
Alessandra Torraco1, Francisca Diaz, Uma D Vempati
1Department of Neurology, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL 33136, USA.
Abstract:
Defects in the oxidative phosphorylation system (OXPHOS) are responsible for a group of extremely heterogeneous and pleiotropic pathologies commonly known as mitochondrial diseases. Although many mutations have been found to be responsible for OXPHOS defects, their pathogenetic mechanisms are still poorly understood. An important contribution to investigate the in vivo function of several mitochondrial proteins and their role in mitochondrial dysfunction, has been provided by mouse models. Thanks to their genetic and physiologic similarity to humans, mouse models represent a powerful tool to investigate the impact of pathological mutations on metabolic pathways. In this review we discuss the main mouse models of mitochondrial disease developed, focusing on the ones that directly affect the OXPHOS system.
Insights
Mouse models are crucial for understanding mitochondrial diseases caused by oxidative phosphorylation (OXPHOS) defects. This review highlights key mouse models that illuminate the pathogenetic mechanisms of these complex genetic disorders.
Area of Science:
- Mitochondrial biology and genetics
- Molecular medicine
- Disease pathomechanisms
Background:
- Mitochondrial diseases stem from defects in the oxidative phosphorylation (OXPHOS) system.
- These OXPHOS defects lead to a diverse range of heterogeneous and pleiotropic pathologies.
- The precise pathogenetic mechanisms underlying these diseases remain poorly understood.
Purpose of the Study:
- To review significant mouse models of mitochondrial disease.
- To focus on models directly impacting the OXPHOS system.
- To explore the in vivo function of mitochondrial proteins and their role in dysfunction.
Main Methods:
- Review of existing literature on mouse models of mitochondrial disease.
- Focus on models with direct implications for OXPHOS system function.
- Analysis of how these models elucidate pathogenetic mechanisms.
Main Results:
- Mouse models offer valuable insights into the in vivo function of mitochondrial proteins.
- These models are instrumental in understanding the impact of pathological mutations on metabolic pathways.
- Specific mouse models directly affecting OXPHOS have been identified and discussed.
Conclusions:
- Mouse models are powerful tools for investigating mitochondrial diseases due to genetic and physiological similarities to humans.
- Studying these models enhances our understanding of the pathogenetic mechanisms of OXPHOS defects.
- Further research using these models is essential for advancing the study of mitochondrial disorders.
