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Chi, Chen; Li, Dong-Jie; Jiang, Yu-Jie; Tong, Jie; Fu, Hui; Wu, Yi-Hang; Shen, Fu-Ming
Biochimica et biophysica acta. Molecular basis of disease, 07/2019, Letnik: 1865, Številka: 7Journal Article
Aging is a worldwide challenge, and it is accompanied by the accumulation of senescent cells. Cellular senescence is traditionally defined as permanent cell growth arrest and currently includes the senescence-associated secretory phenotype (SASP). There are two main types of cellular senescence, including telomere-dependent replicative senescence and stress-induced premature senescence. The process of cellular senescence is mainly controlled by two effector pathways, namely, the p53-p21 and p16-retinoblastoma protein (pRB) pathways. Vascular smooth muscle cells (VSMCs) are integral parts of arteries and play an important role in vascular structure and function. VSMC senescence may be triggered by many factors, such as angiotensin II, oxidative stress, inflammation, DNA damage, and small molecule compounds. These inducers are able to genetically and epigenetically regulate VSMC senescence. The senescence of VSMCs together with the SASP contributes to chronic vascular inflammation, the loss of arterial function, and the development of age-related diseases. Current evidence suggests that the senescence of VSMCs might be harmful to individual health, whereas its influence on the lifespan is not clear. The purpose of this paper was to review the current knowledge regarding VSMC senescence and its relevance to hypertension, atherosclerosis, and diabetes, as well as the potential mechanisms responsible for VSMC senescence in these age-related diseases. •Senescence includes growth arrest and senescence-associated secretory phenotype.•Senescence could be divided into replicative senescence and premature senescence.•Oxidative stress and inflammation are important in senescence & age-related diseases.•Vascular smooth muscle cell senescence might be harmful to age-related diseases.
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in: SICRIS
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