Related Experiment Video
Updated: Jun 9, 2025

08:48
Author Spotlight: Decoding Mitochondrial Aging
Published on: June 30, 2023
3.6K
Signaling Pathways Concerning Mitochondrial Dysfunction: Implications in Neurodegeneration and Possible Molecular
Yati Sharma1, Jeetendra Kumar Gupta1, M Arockia Babu1
1Institute of Pharmaceutical Research, GLA University, Mathura, Uttar Pradesh, 281406, India.
Journal of Molecular Neuroscience : MN
|October 28, 2024
Summary
Mitochondrial dysfunction, linked to mutations and oxidative stress, contributes to neurodegenerative diseases and aging. Research explores promising treatments for mitochondrial failure.
Area of Science:
- Cellular Biology
- Mitochondrial Biology
- Neuroscience
Background:
- Mitochondria are vital organelles for cellular energy production (ATP).
- Efficient mitochondrial function is essential for sustaining life in higher organisms.
- Mitochondrial dysfunction is implicated in numerous diseases and aging.
Purpose of the Study:
- To review the role of mitochondria in cellular homeostasis, bioenergetics, and signaling.
- To focus specifically on the link between mitochondrial dysfunction and neurodegenerative disorders.
- To highlight key molecular mechanisms underlying mitochondrial failure.
Main Methods:
- Literature review focusing on mitochondrial DNA mutations.
- Analysis of defects in oxidative phosphorylation.
- Examination of reactive oxygen species (ROS) generation and apoptosis.
Main Results:
- Mitochondrial dysfunction, involving DNA mutations and impaired oxidative phosphorylation, is a significant factor in neurodegeneration.
- Increased ROS production and altered apoptosis pathways are key consequences of mitochondrial failure.
- Mitochondrial dysfunction is also associated with accelerated aging.
Conclusions:
- Mitochondrial dysfunction is a critical contributor to neurodegenerative diseases.
- Understanding these mechanisms opens avenues for therapeutic interventions.
- Targeting mitochondrial health shows promise for treating age-related and neurodegenerative conditions.
More Related Videos
Related Concept Videos
Electron Transport Chain: Complex I and II
12.0K
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...
12.0K
Notch Signaling Pathway
4.2K
The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
4.2K
Mitochondrial Membranes
9.0K
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,...
9.0K
Interactions Between Signaling Pathways
6.2K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.2K
Mitochondria
11.3K
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,...
11.3K
Translocation of Proteins into the Mitochondria
3.0K
Mitochondrial precursors are translocated to the internal subcompartments via independent mechanisms involving distinct protein machineries called translocases.
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
3.0K

