Page 35 - 南京医科大学学报自然科学版
P. 35

第43卷第2期          朱伯谦,宋兵战,陈 凯,等. DNA甲基化调控p16表达在替格瑞洛改善血管内皮功能中的
                  2023年2月               作用及机制[J]. 南京医科大学学报(自然科学版),2023,43(2):169-178                    ·177 ·


                往p16研究主要集中在肿瘤领域,p16蛋白表达水平                              Cerebrovasc Dis,2021,30(2):105520
                可作为多种恶性肿瘤预后的预测指标                  [17] 。近年来,     [5] ZHOU Z. Purinergic interplay between erythrocytes and
                p16在动脉粥样硬化领域也逐渐受到重视,p16在动                              platelets in diabetes⁃associated vascular dysfunction[J].
                脉粥样硬化斑块中异常表达,且与斑块稳定性密切                                 Purinergic Signal,2021,17(4):705-712
                                                                 [6] GUNAWARDENA T,MERINOPOULOS I,WICKRAMA⁃
                相关  [18] 。既往研究也发现p16表达在过氧化氢诱导
                                                                       RACHCHI U,et al. Endothelial dysfunction and coronary
                的 HUVEC 衰老中也发挥重要作用             [19] 。本研究中,
                                                                       vasoreactivity ⁃ a review of the history,physiology,diag⁃
                替格瑞洛干预HUVEC后p16表达显著降低,而过表                              nostic techniques,and clinical relevance[J]. Curr Cardi⁃
                达p16可逆转替格瑞洛对ox⁃LDL 诱导的HUVEC 增                          ol Rev,2021,17(1):85-100
                殖迁移、凋亡的影响,提示p16基因在替格瑞洛调控                         [7] LEON K E,TANGUDU N K,AIRD K M,et al. Loss of
                内皮细胞功能中同样发挥重要作用。                                       p16:A bouncer of the immunological surveillance?[J].
                    目前认为 p16 表达异常主要与 p16 基因的缺                          Life(Basel),2021,11(4):309
                失、突变和DNA甲基化有关。DNA甲基化是基因组                         [8] PIRILLO A,NORATA G D,CATAPANO A L. LOX⁃1,
                                                                       OxLDL,and atherosclerosis[J]. Mediators Inflamm,
                DNA一种主要表观遗传修饰方式,能在不改变DNA
                                                                       2013,2013:152786
                序列的前提下改变遗传性状,是调控基因组功能状态
                                                                 [9] AL⁃ABDOUH A,BARBARAWI M,ABUSNINA W,et al.
                的重要手段     [19] 。在哺乳动物中,DNA 甲基化由 3 种
                                                                       Prasugrel vs ticagrelor for DAPT in patients with ACS un⁃
                DNA 甲 基 化 转 移 酶(DNA methyltransferases,DN⁃             dergoing PCI:a systematic review and meta ⁃ analysis of
                                                     [21]
                MTs)催化:DNMT1,DNMT3A 和 DNMT3B            。DN⁃           randomized controlled trials[J]. Cardiovasc Revasc Med,
                MT1 是主要的维持性 DNA 甲基化转移酶,DNMT3A                          2020,21(12):1613-1618
                和 DNMT3B 是从头合成性 DNA 甲基化转移酶                [22] 。  [10] KANG M,SHAO S,ZHANG Y,et al. Beneficial effects of
                DNA 甲基化调控基因表达,影响 DNA 修复、细胞生                            ticagrelor on oxidized low⁃density lipoprotein(ox⁃ldl)⁃in⁃
                长、分化、增殖以及肿瘤发生等过程                [21] 。我们既往             duced apoptosis in human umbilical vein endothelial cells
                                                                      [J]. Med Sci Monit,2019,25:9811-9819
                研究证实 p16 基因表达受 DNMT1 介导 DNA 甲基化
                                                                 [11] TORNGREN K,OHMAN J,SALMI H,et al. Ticagrelor
                调控  [23] 。本研究发现在 ox⁃LDL 诱导的 HUVEC 中,
                                                                       improves peripheral arterial function in patients with a
                DNMT1 可调控 p16 启动子区的甲基化水平并影响                            previous acute coronary syndrome[J]. Cardiology,2013,
                其表达,而替格瑞洛可通过DNMT1/p16信号通路发                             124(4):252-258
                挥保护内皮功能的作用。                                      [12] BONELLO L,FRERE C,COINTE S,et al. Ticagrelor in⁃
                    综上所述,本研究证明替格瑞洛可通过DNMT1                             creases endothelial progenitor cell level compared to clop⁃
                介导的DNA甲基化调控p16表达,进而减轻ox⁃LDL                            idogrel in acute coronary syndromes:a prospective ran⁃
                诱导的HUVEC损伤,改善血管内皮功能。                                   domized study[J]. Int J Cardiol,2015,187:502-507
                                                                 [13] 谭晓晖,刘杰强,梁转合,等. 替格瑞洛对急性冠状动脉
               [参考文献]
                                                                       综合征患者外周血管内皮功能的影响[J]. 临床心血管
               [1] WERNLY B,ERLINGE D,PERNOW J,et al. Ticagrelor:      病杂志. 2015,31(7):728-732
                    a cardiometabolic drug targeting erythrocyte⁃mediated pu⁃  [14] MOULIAS A,XANTHOPOULOU I,ALEXOPOULOS D.
                    rinergic signaling?[J]. Am J Physiol Heart Circ Physiol,  Does ticagrelor improve endothelial function?[J]. J Car⁃
                    2021,320(1):H90-H94                                diovasc Pharmacol Ther,2019,24(1):11-17
               [2] WALLENTIN L,BECKER R C,BUDAJ A,et al. Ticagre⁃  [15] KAMB A,GRUIS N A,WEAVER⁃FELDHAUS J,et al. A
                    lor versus clopidogrel in patients with acute coronary syn⁃  cell cycle regulator potentially involved in genesis of
                    dromes[J]. N Engl J Med,2009,361(11):1045-1057     many tumor types[J]. Science,1994,264(5157):436-
               [3] COLLET J P,THIELE H,BARBATO E,et al. 2020 ESC       440
                    Guidelines for the management of acute coronary syn⁃  [16] PEZZUTO A,D'ASCANIO M,RICCI A,et al. Expression
                    dromes in patients presenting without persistent ST⁃seg⁃  and role of p16 and GLUT1 in malignant diseases and
                    ment elevation[J]. Eur Heart J,2021,42(14):1289-   lung cancer:a review[J]. Thorac Cancer,2020,11(11):
                    1367                                               3060-3070
               [4] LANDZBERG D R,ENGLISH S,FRANKEL M,et al.      [17] ZHAO R,CHOI B Y,LEE M H,et al. Implications of ge⁃
                    Stroke thrombolysis in patients taking ticagrelor ⁃two suc⁃  netic and epigenetic alterations of CDKN2A (p16
                    cessful cases and a review of the literature[J]. J Stroke  (INK4a))in cancer[J]. EBioMedicine 2016,8:30-39
   30   31   32   33   34   35   36   37   38   39   40