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南京医科大学学报(自然科学版)                                 第41卷第12期
               ·1728 ·                    Journal of Nanjing Medical University(Natural Sciences)  2021年12月


             ·基础医学·

              MicroRNA⁃190调控衰老相关的脂肪能量代谢稳态



              彭丹丹 ,李 言       2*
                     1
              1 东南大学生命科学与技术学院,江苏 南京 210096;江南大学食品学院,江苏                       无锡 214122
                                                        2



             [摘    要] 目的:探究微小RNA(microRNA,miR)⁃190在衰老相关的能量代谢紊乱中的作用和潜在分子机制。方法:利用实时
              荧光定量PCR(real⁃time fluorescent quantitative ⁃polymerase chain reaction,RT⁃PCR),对衰老小鼠脂肪组织中miR⁃190的表达水
              平进行检测;构建细胞衰老模型,利用RT⁃PCR检测脂肪细胞中miR⁃190的变化;利用RT⁃PCR检测转染miR⁃190的脂肪细胞中
              产热基因的变化;用双荧光素酶报告基因实验验证miR⁃190的靶基因;利用antagomir注射抑制衰老小鼠脂肪中产生miR⁃190,
              检测代谢表征。结果:衰老进程中,脂肪组织中miR⁃190表达升高;衰老细胞模型中,miR⁃190的表达同样上调;脂肪细胞中过
              表达 miR⁃190 会导致产热基因的表达降低;产热关键基因 PRDM16 是 miR⁃190 的直接靶基因;抑制衰老小鼠中 miR⁃190 的产
              生,可以有助于改善衰老小鼠的能量代谢稳态。结论:miR⁃190可能通过靶向PRDM16影响脂肪组织产热,继而影响能量代谢
              稳态,加速衰老。

             [关键词] miR⁃190;衰老;脂肪组织;产热;能量代谢;PRDM16
             [中图分类号] R339.6                   [文献标志码] A                       [文章编号] 1007⁃4368(2021)12⁃1728⁃07
              doi:10.7655/NYDXBNS20211203



              MicroRNA⁃190 regulates aging⁃related fat energy metabolism homeostasis
                          1
              PENG Dandan ,LI Yan 2
                                                                                     2
              1 School of Life Science and Technology,Southeast University,Nanjing 210096;School of Food Science and
              Technology,Jiangnan University,Wuxi 214122,China


             [Abstract] Objective:This study aims to explore the role and potential molecular mechanism of microRNA(miR)⁃190 in aging⁃
              related energy metabolism disorders. Methods:Real⁃time fluorescent quantitative PCR(RT⁃PCR)was used to detect the expression
              level of miR⁃190 in the adipose tissue of aging mice;a cellular senescence model was constructed and RT⁃PCR was used to detect the
              changes of miR⁃190 in adipocytes;RT⁃PCR was used to detect the changes in thermogenesis genes in the adipocytes transfected with
              miR⁃190;the target genes of miR⁃190 were verified by the dual luciferase reporter gene experiment;the metabolic homeostasis was
              determined in aged mice injected with miR⁃190 antagomir. Results:During the aging process,the expression of miR⁃190 in adipose
              tissue was elevated;in the senescent cell model,the expression of miR⁃190 was also up⁃regulated;overexpression of miR⁃190 in
              adipocytes would lead to a decrease in the expression of thermogenesis genes;the key genes for thermogenesis PRDM16 is the direct
              target gene of miR⁃190;inhibiting the level of miR⁃190 in aging mice can help improve the energy metabolism homeostasis of aged
              mice. Conclusion:miR⁃190 may affect adipose tissue heat production by targeting PRDM16,which in turn affects energy metabolism
              homeostasis and accelerates aging.
             [Key words] miR⁃190;aging;adipose tissue;thermogenesis;energy metabolism;PRDM16
                                                                           [J Nanjing Med Univ,2021,41(12):1728⁃1734]




                  衰老通常伴随机体发生不可逆转的生理功能                           谢稳态失衡通常包括能量消耗减少、脂肪堆积以及胰
              下降,这其中就包括能量代谢稳态。衰老相关的代                            岛素敏感性的降低等          [1-2] 。衰老相关的代谢稳态失衡
                                                                与很多代谢性疾病有着十分密切的关系,包括2型糖

             [基金项目] 国家自然科学基金(31900841,32071166)                 尿病、心血管疾病以及神经退行性疾病等                  [3-6] 。因此,
              ∗                                                 探究衰老相关的代谢稳态失衡发生发展过程中的
              通信作者(Corresponding author),E⁃mail:103008528@seu.edu.cn
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