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Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
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Updated: Jul 18, 2025

Flow Cytometric Analysis of Extracellular Vesicles from Cell-conditioned Media
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Extracellular Vesicles and Cardiac Aging.

Fernando A C Seara1,2, Leonardo Maciel1,3, Tais Hanae Kasai-Brunswick1,4

  • 1Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.

Advances in Experimental Medicine and Biology
|August 21, 2023
PubMed
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Aging populations face health challenges, especially cardiovascular disease. Senescent cells release extracellular vesicles (EVs) that contribute to heart aging, but stem cell EVs may offer anti-aging therapies.

Keywords:
AgingCardiac agingExtracellular vesiclesSenescence

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Area of Science:

  • Cardiovascular Science
  • Gerontology
  • Cell Biology

Background:

  • Global population aging presents significant health and socioeconomic challenges.
  • Cardiovascular disease is the leading cause of mortality in the elderly.
  • Accumulation of cardiac senescent cells and their secreted factors contribute to age-related cardiovascular decline.

Purpose of the Study:

  • To investigate the role of senescent cells and their secreted extracellular vesicles (EVs) in cardiovascular aging.
  • To explore the potential of EVs as biomarkers for aging-related conditions.
  • To examine the therapeutic potential of stem and progenitor cell-derived EVs for anti-aging strategies.

Main Methods:

  • Analysis of senescence-associated secretory phenotype (SASP) compounds released by senescent cells.
  • Characterization of extracellular vesicles (EVs) secreted by senescent cells.
  • Investigation of EV uptake by recipient cells and their effects on cellular function and extracellular matrix.
  • Exploration of EVs from stem and progenitor cells for potential rejuvenating effects.

Main Results:

  • Senescent cells release EVs containing SASP factors and damaged molecules.
  • These EVs can be internalized by neighboring cells, causing damage and promoting fibrosis and vascular calcification.
  • The molecular signature of aging-related EVs is variable, suggesting biomarker potential.
  • EVs from stem and progenitor cells may possess rejuvenating properties.

Conclusions:

  • Senescent cell-derived EVs play a critical role in age-related cardiovascular dysfunction.
  • EVs represent a potential source for novel aging biomarkers.
  • Stem and progenitor cell-derived EVs hold promise for future anti-aging therapies.