摘要
2型糖尿病是目前公认的与衰老相关的重大疾病之一,发病年龄多在50岁以上。细胞衰老是指细胞应激致细胞产生不可逆的永久性细胞周期停滞的状态,是机体衰老的基础。细胞衰老与2型糖尿病的关系相当复杂,衰老的胰岛β细胞在组织内累积引起β细胞功能障碍、脂肪细胞衰老导致脂质代谢障碍等等,衰老的细胞还可间接通过衰老相关分泌表型使个体处于慢性低水平炎症状态,引起2型糖尿病及其并发症;反过来,糖尿病的高血糖、炎症微环境及脂毒性等能够促使细胞衰老并进一步累积。细胞衰老可能既是2型糖尿病发生的原因,又是其发展的结果。靶向细胞衰老的疗法可能为2型糖尿病提供新的治疗策略,现就细胞衰老在2型糖尿病的发生发展中的作用研究进展做一简要综述。
Type 2 diabetes mellitus(T2DM) is commonly considered as an aging and age-associated disease, with the majority of patients being over fifty years old. As a fundamental mechanism of aging, cellular senescence implicates in the development of type 2 diabetes. Physiological changes in diabetes, such as hyperglycemia, chronic inflammation, lipid toxicity lead to accumulation of senescent cells. In turn, cellular senescence, a process that imposes permanent proliferative arrest on cells, can definitely impair pancreatic β cells and cause lipid metabolism dysfunction. In addition, senescent cells can promote chronic, low-grade sterile inflammation through the senescence-associated secretory phenotype(SASP), thus cause development of T2DM and relative complications.Therefore, cellular senescence might be both a cause and a consequence of metabolic changes and tissue damage in diabetes. Treatment targeting cellular senescence may provide a novel and attractive strategy for diabetes therapy.Here the paper aims at the role of cellular senescence in the development of T2DM.
引文
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