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Rescue of TCA Cycle Dysfunction for Cancer Therapy
Jubert Marquez1, Jessa Flores2, Amy Hyein Kim1
1Department of Health Science and Technology, College of Medicine, Inje University, Busan 47392, Korea.
Abstract:
Mitochondrion, a maternally hereditary, subcellular organelle, is the site of the tricarboxylic acid (TCA) cycle, electron transport chain (ETC), and oxidative phosphorylation (OXPHOS)-the basic processes of ATP production. Mitochondrial function plays a pivotal role in the development and pathology of different cancers. Disruption in its activity, like mutations in its TCA cycle enzymes, leads to physiological imbalances and metabolic shifts of the cell, which contributes to the progression of cancer. In this review, we explored the different significant mutations in the mitochondrial enzymes participating in the TCA cycle and the diseases, especially cancer types, that these malfunctions are closely associated with. In addition, this paper also discussed the different therapeutic approaches which are currently being developed to address these diseases caused by mitochondrial enzyme malfunction.
Insights
Mitochondrial mutations in the tricarboxylic acid (TCA) cycle disrupt ATP production, driving cancer progression. This review covers TCA cycle enzyme mutations, associated cancers, and emerging therapeutic strategies.
Area of Science:
- Biochemistry
- Cell Biology
- Oncology
Background:
- Mitochondria are vital for ATP production via the TCA cycle, electron transport chain (ETC), and oxidative phosphorylation (OXPHOS).
- Mitochondrial dysfunction is implicated in cancer development and progression.
- Mutations in TCA cycle enzymes disrupt cellular metabolism, contributing to tumorigenesis.
Purpose of the Study:
- To review significant mutations in mitochondrial TCA cycle enzymes.
- To explore the association between these mutations and various cancer types.
- To discuss current and developing therapeutic strategies for mitochondrial enzyme-related diseases.
Main Methods:
- Literature review of studies on mitochondrial enzyme mutations and cancer.
- Analysis of the link between TCA cycle enzyme dysfunction and cancer pathology.
- Compilation of information on therapeutic interventions.
Main Results:
- Specific mutations in mitochondrial TCA cycle enzymes are linked to distinct cancer types.
- Metabolic reprogramming driven by these mutations promotes cancer growth.
- Various therapeutic approaches targeting mitochondrial dysfunction are under investigation.
Conclusions:
- Mitochondrial TCA cycle enzyme mutations are key drivers in cancer.
- Understanding these mutations offers insights into cancer pathogenesis.
- Targeting mitochondrial pathways presents promising therapeutic avenues for cancer treatment.
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