Vascular ageing: Underlying mechanisms and clinical implications

Area of Science:

• Cardiovascular Science
• Gerontology
• Molecular Biology

Background:

• Ageing is a primary, irreversible risk factor for cardiovascular disease.
• Vascular ageing, marked by structural and functional changes leading to arterial stiffening, begins early in life.

Purpose of the Study:

• To review molecular pathways implicated in vascular ageing and arterial stiffening.
• To identify potential therapeutic targets for mitigating vascular ageing.

Main Methods:

• Review of epidemiological studies and molecular mechanisms.
• Focus on oxidative stress, telomere shortening, and ubiquitin proteasome system.
• Examination of key regulators: sirtuin 1, telomerase, klotho, JunD, and amyloid beta 1-40.

Main Results:

• Endothelial cell senescence and dysfunction are linked to oxidative stress, telomere shortening, and ubiquitin proteasome system.
• These molecular pathways contribute to vascular inflammation and arterial stiffening.
• Specific molecules like sirtuin 1, telomerase, klotho, JunD, and amyloid beta 1-40 play regulatory roles.

Conclusions:

• Understanding molecular pathways of vascular ageing is crucial for cardiovascular health.
• Targeting pathways like oxidative stress and telomere shortening may offer therapeutic strategies.
• Novel targets could potentially delay the irreversible process of vascular ageing and arterial stiffening.