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The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
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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...
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Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
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Advances in Human Mitochondria-Based Therapies.

Gang Zhong1, Jagadeesh K Venkatesan1, Henning Madry1

  • 1Center of Experimental Orthopaedics, Saarland University Medical Center, Saarland University, Kirrbergerstr. Bldg 37, 66421 Homburg, Germany.

International Journal of Molecular Sciences
|January 8, 2023
PubMed
Summary

Mitochondria are vital cell powerhouses. Strategies to manage mitochondrial dysfunction could treat aging, cancer, and neurodegenerative diseases, offering new therapeutic avenues.

Keywords:
agingcancerinflammatory diseasesmitochondriamitochondrial diseasesoxidative disordersregenerative medicine

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Area of Science:

  • Cell Biology
  • Mitochondrial Biology
  • Biochemistry

Background:

  • Mitochondria are central to eukaryotic cell energy production and biosynthesis.
  • They form dynamic networks integrated with other cellular compartments.
  • Mitochondrial dysfunction is implicated in aging, cancer, inflammation, and neurodegenerative diseases.

Purpose of the Study:

  • To review advanced strategies for managing mitochondrial disorders.
  • To explore innovative human mitochondria-based therapies.

Main Methods:

  • Literature review of current mitochondrial research.
  • Analysis of therapeutic strategies targeting mitochondrial function.

Main Results:

  • Mitochondrial defects are critical in numerous human diseases.
  • Interventions aimed at mitochondrial health show therapeutic potential.

Conclusions:

  • Mitochondria-based therapies offer promising approaches for disease management and treatment.
  • Further exploration of innovative mitochondrial therapies is warranted.