Hall Shelby A, Lesniewski Lisa A
Department of Nutrition and Integrated Physiology, University of Utah, Salt Lake City, UT 84112, USA.
Nora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, UT 84112, USA.
J Cardiovasc Aging. 2024 Apr;4(2). doi: 10.20517/jca.2023.45. Epub 2024 Feb 28.
Aging is a major risk factor for atherosclerosis and cardiovascular disease (CVD). Two major age-associated arterial phenotypes, endothelial dysfunction and large elastic arterial stiffness, are autonomous predictors of future CVD diagnosis and contribute to the progression of CVD in older adults. Senescent cells lose the capacity to proliferate but remain metabolically active and secrete inflammatory factors termed senescence-associated secretory phenotype (SASP), leading to an increase in inflammation and oxidative stress. Accumulation of senescent cells is linked with the progression of age-related diseases and has been known to play a role in cardiovascular disease. In this brief review, we describe the characteristics and mechanisms of senescent cell accumulation and how senescent cells promote endothelial dysfunction and arterial stiffness. We focus on a range of novel therapeutic strategies aimed at reducing the burden of endothelial dysfunction leading to atherosclerosis through targeting senescent cells. Studies have begun to investigate a specific class of drugs that are able to selectively eliminate senescent cells, termed senolytics, which have shown great promise in reversing the aging phenotype and ameliorating pathologies in age-related disorders, creating a new opportunity for aging research. Generating therapies targeting the elimination of senescent cells would improve health span and increase longevity, making senolytics a promising therapy for cardiovascular diseases.
衰老是动脉粥样硬化和心血管疾病(CVD)的主要风险因素。两种主要的与年龄相关的动脉表型,即内皮功能障碍和大动脉弹性僵硬,是未来心血管疾病诊断的自主预测因素,并促使老年人的心血管疾病进展。衰老细胞失去增殖能力,但仍保持代谢活性,并分泌称为衰老相关分泌表型(SASP)的炎症因子,导致炎症和氧化应激增加。衰老细胞的积累与年龄相关疾病的进展有关,并且已知在心血管疾病中起作用。在这篇简短的综述中,我们描述了衰老细胞积累的特征和机制,以及衰老细胞如何促进内皮功能障碍和动脉僵硬。我们重点关注一系列旨在通过靶向衰老细胞来减轻导致动脉粥样硬化的内皮功能障碍负担的新型治疗策略。研究已经开始调查一类能够选择性消除衰老细胞的特定药物,即衰老细胞溶解剂,它们在逆转衰老表型和改善年龄相关疾病的病理方面显示出巨大的前景,为衰老研究创造了新的机会。开发针对消除衰老细胞的疗法将改善健康寿命并延长寿命,使衰老细胞溶解剂成为心血管疾病的一种有前景的疗法。
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