Related Experiment Video
Updated: May 10, 2026

08:52
Measurement of Protein Turnover Rates in Senescent and Non-Dividing Cultured Cells with Metabolic Labeling and Mass Spectrometry
Published on: April 6, 2022
A network of interorganellar communications underlies cellular aging
Anna Leonov1, Vladimir I Titorenko
1Department of Biology, Concordia University, Montreal, QC, Canada.
IUBMB Life
|July 3, 2013
Summary
Cellular aging is regulated by communication between organelles, which adapt to stress and environmental changes. This intricate network of organelle-cytosol and organelle-organelle signaling is crucial for eukaryotic cell longevity.
Area of Science:
- Cellular Biology
- Aging Research
- Eukaryotic Organelles
Background:
- Organelles within eukaryotic cells dynamically alter functions in response to intracellular stresses and environmental cues.
- These functional alterations are critical for managing the flow of interorganellar information, influencing cellular aging patterns.
Purpose of the Study:
- To critically analyze recent advancements in understanding intercompartmental communication in regulating cellular aging.
- To examine how organelle-to-organelle and organelle-to-cytosol communications impact aging across diverse eukaryotic species.
Main Methods:
- Review of recent scientific literature on cellular aging and interorganellar communication.
- Critical analysis of studies investigating communication pathways between cellular compartments.
Main Results:
- Identified a complex network of intercompartmental communications underlying cellular aging in eukaryotes.
- Highlighted the role of directed, coordinated, and regulated signaling between organelles and the cytosol.
Conclusions:
- Organelle communication networks are fundamental to the long-term viability of eukaryotic cells.
- These intricate communication systems are critical regulators of the cellular aging process across different phyla.
Related Concept Videos
Aging
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
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,...
The Effect of Aging on Tissues
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
Replicative Cell Senescence
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds the telomeric...
Replicative Cell Senescence
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds the telomeric...
Cellular Adaptation I: Introduction and Atrophy
Cells can adapt to environmental changes to maintain function and avoid injury, a process called cellular adaptation. Adapted cells exist in a reversible intermediate state with changes in size, number, phenotype, metabolism, or function. These responses help cells meet altered physiological or pathological demands; for example, enlargement of breast and uterine tissues during pregnancy. Early adaptations may enhance function, but persistent stress eventually causes tissue damage.Types of...