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Related Concept Videos

The Effect of Aging on Tissues01:19

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 Senescence02:15

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 Senescence02:15

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...
Aging01:26

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 Adaptation I: Introduction and Atrophy01:23

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...
Mitochondria01:37

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,...

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Related Experiment Video

Updated: Jun 10, 2026

Measurement of Protein Turnover Rates in Senescent and Non-Dividing Cultured Cells with Metabolic Labeling and Mass Spectrometry
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

Fat tissue, aging, and cellular senescence.

Tamara Tchkonia1, Dean E Morbeck, Thomas Von Zglinicki

  • 1Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN 55905, USA.

Aging Cell
|August 13, 2010
PubMed
Summary

Aging fat tissue develops a senescent, pro-inflammatory state, impairing function and potentially driving age-related diseases. This cellular senescence in fat cells and progenitors contributes to metabolic dysfunction and systemic inflammation with aging.

More Related Videos

Techniques to Induce and Quantify Cellular Senescence
06:51

Techniques to Induce and Quantify Cellular Senescence

Published on: May 1, 2017

Related Experiment Videos

Last Updated: Jun 10, 2026

Measurement of Protein Turnover Rates in Senescent and Non-Dividing Cultured Cells with Metabolic Labeling and Mass Spectrometry
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

Techniques to Induce and Quantify Cellular Senescence
06:51

Techniques to Induce and Quantify Cellular Senescence

Published on: May 1, 2017

Area of Science:

  • Adipose tissue biology
  • Cellular senescence
  • Metabolic dysfunction and aging

Background:

  • Fat tissue is central to longevity and metabolic health, with its function changing throughout life.
  • Obesity accelerates age-related diseases, while fat manipulation can extend lifespan.
  • Fat cell progenitors (preadipocytes) are abundant but can adopt a pro-inflammatory, senescent state with aging.

Purpose of the Study:

  • To propose a hypothetical model for how cellular senescence in adipose tissue contributes to aging and metabolic dysfunction.
  • To explore the role of preadipocyte overutilization and cellular stress in inducing senescence.
  • To understand the systemic consequences of senescent, pro-inflammatory fat cells.

Main Methods:

  • Hypothetical modeling based on existing literature and concepts of cellular senescence.
  • Review of evidence linking cellular senescence to metabolic dysfunction and aging.
  • Analysis of preadipocyte behavior and fat cell progenitor phenotypes.

Main Results:

  • Aging induces cellular stress and preadipocyte overutilization, leading to cellular senescence.
  • Senescence impairs adipogenesis, fatty acid sequestration, and promotes inflammatory cytokine/chemokine generation.
  • Senescent fat cells activate immune responses, potentially leading to amplified, systemic inflammation.

Conclusions:

  • Cellular senescence in adipose tissue is a key driver of age-related metabolic dysfunction.
  • Senescent, pro-inflammatory fat cells have significant clinical implications due to fat tissue's size and metabolic role.
  • Senescence can be an alternative cell fate triggered by stress or metabolic dysfunction, affecting both dividing and non-dividing cells.