Related Experiment Video
Updated: Jun 9, 2026

06:05
An In Vitro Approach to Study Mitochondrial Dysfunction: A Cybrid Model
Published on: March 9, 2022
Historical perspective on mitochondrial medicine.
Salvatore DiMauro1, Caterina Garone
1Columbia University Medical Center, College of Physicians & Surgeons, 630 West 168th Street, New York, NY 10032, USA. sd12@columbia.edu
Developmental Disabilities Research Reviews
|September 7, 2010
Summary
This review traces the evolution of mitochondrial medicine from early clinical observations to the current molecular era. It highlights key conceptual advances in understanding mitochondrial function and disease.
Area of Science:
- Mitochondrial Medicine
- Molecular Biology
- Genetics
Background:
- Mitochondrial medicine has evolved significantly since 1962.
- Early development relied on clinical, morphological, and biochemical data.
- The field transitioned into the molecular era in 1988.
Observation:
- Key conceptual advances include endosymbiosis and uniparental inheritance.
- Intergenomic signaling and its defects are crucial in mitochondrial function.
- Mitochondrial dynamics represent a rapidly advancing area of research.
Findings:
- The review details the historical progression of mitochondrial medicine.
- It emphasizes conceptual breakthroughs driving the field.
- Current advancements continue at a rapid pace.
Implications:
- Understanding mitochondrial medicine's history provides context for current research.
- This review offers an update on the fast-paced field of mitochondrial medicine.
- The insights are valuable for researchers and clinicians in genetics and molecular biology.
Related Concept Videos
Animal Mitochondrial Genetics
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...
Mitochondria
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,...
Mitochondrial Membranes
A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
Electron Transport Chain: Complex I and II
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.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
The Inner Mitochondrial Membrane
The inner mitochondrial membrane is the primary site of ATP synthesis. The inner membrane domain that forms a smooth layer adjacent to the outer membrane is called the inner boundary membrane. This domain contains membrane transporters that drive metabolites in and out of the mitochondria. In contrast, the inner membrane network that invaginates into the matrix space is called the cristae membrane. This domain accounts for principle mitochondrial function as it accommodates the protein...
Mitochondrial Protein Sorting
Mitochondria are double-membrane organelles of the eukaryotes involved in cellular metabolism, signaling, ATP synthesis, and programmed cell death. Each of these processes requires specific proteins and enzymes that must be correctly sorted to the right mitochondrial subcompartment for the proper functioning of the organelle.
Most of these mitochondrial proteins are encoded by the nucleus and imported to the mitochondria as unfolded or loosely folded precursors. Mitochondrial precursors...
Most of these mitochondrial proteins are encoded by the nucleus and imported to the mitochondria as unfolded or loosely folded precursors. Mitochondrial precursors...

