血管内膜代謝と動脈硬化症の発達に対する老化と流体切断ストレスの影響
Wei-Li Wang1, Yu-Tsung Shih2, Shu-Yi Wei1
1Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan.
Journal of biomedical science
|September 2, 2025
まとめ
老化により,内皮細胞 (EC) の代謝が低下し,動脈硬化が促進されます. このレビューでは,ECの年齢に関連する代謝変化と,心血管疾患の発生におけるその役割,および潜在的な治療目標について考察しています.
科学分野:
- 心血管生物学
- 内皮細胞の代謝
- 老化に関する研究
背景:
- 心血管疾患 (CVD) の主要な原因である代謝症候群と動脈硬化症の主なリスク因子です.
- 内皮細胞 (ECs) は血管の恒常性にとって極めて重要で,その機能不全は,障壁機能の障害や炎症を含めて,アテロゲネシスを開始します.
- EC代謝は老化と血動力学的力によって大きく変化し,血管の健康に影響します.
研究 の 目的:
- ECにおける年齢関連の代謝再プログラムにおける最近の進歩をレビューする.
- EC代謝機能障害が動脈硬化に与える影響を明らかにする.
- EC代謝と潜在的な治療戦略のプロファイリングのための方法論を議論する.
主な方法:
- 内皮細胞の代謝,老化,動脈硬化に関する現在の文献のレビュー.
- EC代謝経路に対する流体切断ストレスの影響の分析
- 糖分解,脂肪酸,アミノ酸代謝,ミトコンドリア呼吸を含む年齢による代謝変化の調査.
主要な成果:
- 高齢化により EC細胞の代謝が大きく再プログラムされ 糖分分解やミトコンドリア機能障害が起こります
- 老化する血管系における乱れた振動性切断ストレス (OS) は,アテロゲンシグナル伝達とEC炎症を促進する.
- ECの代謝失調は,年齢とシアストレスの影響を受け,EC機能障害と動脈硬化の主な要因です.
結論:
- 内皮細胞の代謝は,年齢に関連する動脈硬化症の重要な,まだ十分に研究されていない要因です.
- ECの代謝経路をターゲットにすることで,動脈硬化症を予防または遅らせるための有望な治療法となる.
- EC代謝再プログラムを理解することは,年齢に関連する心臓血管疾患に対する新しい戦略の開発に不可欠です.
関連する概念動画
The Effect of Aging on Tissues
2.4K
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...
2.4K
Atherosclerosis I: Introduction
76
Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...
76
Aging
179
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...
179
Coronary Artery Disease II: Pathophysiology
33
Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
33
Regulation of Angiogenesis and Blood Supply
2.7K
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...
2.7K
Peripheral Artery Disease I: Introduction
32
Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
32


