Related Experiment Video
Updated: Apr 15, 2026

08:56
Evaluating the Role of Mitochondrial Function in Cancer-related Fatigue
Published on: May 17, 2018
9.8K
Nutrition, Cell Signalling, Mitochondrial Function, and Chronic Non-Communicable Disease
1McKenzie Clinic, Sunshine Coast 4556, Australia.
International Journal of Molecular Sciences
|April 14, 2026
Summary
Cellular homeostasis relies on balancing nutrient intake with energy needs to maintain cell health. Disruptions in this balance, particularly mitochondrial dysfunction, can lead to chronic diseases and impact epigenetic expression.
Area of Science:
- Cellular Biology
- Metabolism
- Nutrition Science
Background:
- Cellular homeostasis balances anabolic and catabolic processes, requiring nutrient-derived energy for signaling.
- Cellular health depends on matching energy input with requirements, allowing for nutrient abundance and scarcity cycles.
- Imbalances, such as overfuelling mitochondria, cause oxidative stress, epigenetic alterations, and can trigger inflammation.
Purpose of the Study:
- To review the influence of nutrition on key cellular homeostasis pathways.
- To explore the role of mitochondria in energy production and cell signaling.
- To connect cellular dysfunction to chronic non-communicable diseases.
Main Methods:
- Literature review focusing on nutrition's impact on cellular processes.
- Analysis of nutrient sensing, autophagy, insulin signaling, and apoptosis.
- Examination of mitochondrial function's role in cellular and organismal health.
Main Results:
- Mitochondrial function is pivotal for energy production and cell signaling.
- Disrupted cellular signaling underlies associations between chronic diseases like cancer and diabetes.
- Nutrient sensing, autophagy, insulin signaling, and apoptosis are key to maintaining cellular homeostasis.
Conclusions:
- Nutrition significantly influences mitochondrial function and cellular homeostasis pathways.
- Maintaining cellular balance is crucial for preventing chronic diseases.
- Mitochondrial health is fundamental to both cellular and organismal well-being.
Related Concept Videos
Electron Transport Chain: Complex I and II
19.7K
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...
19.7K
Mitochondria
21.5K
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,...
21.5K
Mitochondrial Membranes
18.0K
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,...
18.0K
PI3K/mTOR/AKT Signaling Pathway
6.5K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
6.5K
Translocation of Proteins into the Mitochondria
13.8K
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,...
13.8K

