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Related Concept Videos

Role of Hematopoietic Growth Factors01:28

Role of Hematopoietic Growth Factors

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Hematopoietic growth factors are molecules that regulate the differentiation rate of hematopoietic stem cells (HSCs). Erythropoietin (EPO), primarily produced by the kidneys, plays a crucial role in erythrocyte production. When oxygen levels in the blood are low, EPO is released into the bloodstream, reaching the bone marrow, where it stimulates HSCs to differentiate and mature into erythrocytes, which are vital for oxygen transport.
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Differentiation of Common Myeloid Progenitor Cells01:15

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Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
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TGF - β Signaling Pathway01:16

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The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
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B Cell Activation and Differentiation01:24

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The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
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Regulation of Hematopoietic Stem Cells01:01

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All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
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The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

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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...
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Related Experiment Video

Updated: Sep 5, 2025

Quantitative Imaging of Lineage-specific Toll-like Receptor-mediated Signaling in Monocytes and Dendritic Cells from Small Samples of Human Blood
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Quantitative Imaging of Lineage-specific Toll-like Receptor-mediated Signaling in Monocytes and Dendritic Cells from Small Samples of Human Blood

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Growth Differentiation Factor-15 in Immunity and Aging.

Brandt D Pence1

  • 1College of Health Sciences, University of Memphis, Memphis, TN, United States.

Frontiers in Aging
|July 13, 2022
PubMed
Summary

Aging impairs immune function, increasing disease risk. Growth differentiation factor-15 (GDF-15), a cytokine elevated in aging, suppresses immune responses and may drive age-related immune dysfunction.

Area of Science:

  • Immunology
  • Gerontology
  • Molecular Biology

Background:

  • Aging is associated with increased susceptibility to diseases due to immune system decline.
  • Key aging-related immune dysfunctions include inflammaging and immunosenescence.
  • Growth differentiation factor-15 (GDF-15) is a cytokine that increases with age and suppresses immune responses.

Purpose of the Study:

  • To review the immunoregulatory roles of GDF-15.
  • To explore the anti-inflammatory functions of GDF-15.
  • To discuss the significance of GDF-15 in aging and immune health.

Main Methods:

  • Literature review of existing research on GDF-15.
  • Analysis of GDF-15's involvement in immune regulation.
  • Synthesis of data on GDF-15's impact on aging and immunity.
Keywords:
GDF-15agingimmunityimmunosenescenceinflammaging

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Main Results:

  • GDF-15 exhibits both immunoregulatory and anti-inflammatory properties.
  • Elevated GDF-15 levels in aging correlate with suppressed immune function.
  • GDF-15 plays a significant role in age-related immune changes.

Conclusions:

  • GDF-15 is a key factor in age-related immune dysfunction.
  • Understanding GDF-15's roles may offer therapeutic targets for aging-related diseases.
  • Further research into GDF-15 is crucial for improving immune health in the elderly.