Related Experiment Video
Updated: Nov 29, 2025

08:18
Induction and Validation of Cellular Senescence in Primary Human Cells
Published on: June 20, 2018
17.6K
Cell senescence: basic mechanisms and the need for computational networks in vascular ageing
Véronique Regnault1, Pascal Challande2, Florence Pinet3
1Université de Lorraine, INSERM, DCAC, 9 avenue de la forêt de Haye, CS 50184, 54000 Nancy, France.
Cardiovascular Research
|November 18, 2020
Summary
This review updates mechanisms of vascular cell senescence and arterial aging. It explores senolytic drugs for age-related vascular diseases, highlighting cell senescence
Area of Science:
- Cardiovascular Biology
- Cellular Aging
- Biomedical Engineering
Background:
- Vascular aging is a complex process involving cellular senescence.
- Understanding the molecular mechanisms driving vascular aging is crucial for developing effective treatments.
Purpose of the Study:
- To provide an updated review of vascular cell senescence mechanisms.
- To explore the role of signaling and gene expression pathways in vascular aging.
- To investigate the potential of senolytic drugs in treating age-related vascular diseases.
Main Methods:
- Review of current literature on vascular cell senescence.
- Computational approach to identify protein networks involved in arterial aging.
- Analysis of signaling and gene expression pathways.
Main Results:
- Identification of key molecules and arterial aging phenotypes.
- Elucidation of protein networks driving normal and accelerated vascular aging.
- Discussion of feedback controls between networks in vascular aging.
Conclusions:
- Cell senescence is a significant contributor to vascular aging.
- Senolytic drugs show promise in treating multiple age-related vascular diseases.
- Cell senescence is both a cause and consequence of vascular aging due to feedback mechanisms.
Related Concept Videos
Aging
456
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...
456
Replicative Cell Senescence
4.1K
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...
4.1K
Regulation of Angiogenesis and Blood Supply
3.1K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
3.1K
The Effect of Aging on Tissues
3.0K
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...
3.0K
Overview of the Vascular System
3.3K
The vascular system comprises an extensive network of arteries, capillaries, and veins. The vascular system can be broadly divided into the blood and lymphatic systems. Typically, blood vessels can be categorized into three histological regions: tunica intima, tunica media, and tunica adventitia. The tunica intima consists of a single layer of endothelial cells attached to the basal lamina. Underlying the basal lamina is a connective tissue layer and an elastic lamina that gives stability and...
3.3K
Mechanism of Angiogenesis
6.3K
Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...
6.3K

