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阿托伐他汀对人胃癌 AGS 细胞增殖、自噬和糖代谢的影响及

          机制
                 Δ


                                          1
          孙祥瑞 ,崔晨玲 ,王 畏 ,汪庆飞(1.蚌埠医学院第二附属医院药剂科,安徽 蚌埠 233000;2.蚌埠医学院第
                                  2
                 1*
                          1
          二附属医院肿瘤外科,安徽 蚌埠 233000)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2023)18-2187-05
          DOI  10.6039/j.issn.1001-0408.2023.18.03

          摘  要  目的  探究阿托伐他汀对人胃癌 AGS 细胞增殖、自噬和糖代谢的影响及机制。方法  通过预实验考察低、中、高浓度
         (12.5、25、50 μmol/L)阿托伐他汀对 AGS 细胞活力的影响,筛选作用浓度。正式实验分为对照组(不做干预)、阿托伐他汀组(25
          μmol/L)、阳性对照组(50 mg/L 5-氟尿嘧啶)、抑制剂组[25 μmol/L阿托伐他汀+10 μmol/L磷脂酰肌醇-3-激酶(PI3K)/蛋白激酶B
         (Akt)信号通路抑制剂LY294002]和激活剂组(25 μmol/L阿托伐他汀+10 μmol/L PI3K/Akt信号通路激活剂SC79),干预24 h,检测
          细胞糖代谢情况(葡萄糖和乳酸含量)和细胞增殖率,以及细胞中自噬相关蛋白轻链3(LC3)Ⅰ、LC3Ⅱ及PI3K/Akt信号通路相关
          蛋白的表达。结果  中、高浓度阿托伐他汀均能显著抑制AGS细胞活力(P<0.05),正式实验选择25 μmol/L阿托伐他汀进行后续
          实验。与对照组相比,阳性对照组和阿托伐他汀组细胞中葡萄糖和乳酸含量、细胞增殖率以及p-PI3K/PI3K、p-Akt/Akt比值均显
          著降低(P<0.05),LC3Ⅰ、LC3Ⅱ蛋白表达水平均显著升高(P<0.05)。与阿托伐他汀组相比,抑制剂能显著加强上述指标变化
         (P<0.05),激活剂能显著逆转上述指标变化(P<0.05)。结论  阿托伐他汀可抑制人胃癌AGS细胞的糖代谢和增殖,促进细胞自
          噬,其作用机制可能与抑制PI3K/Akt信号通路相关。
          关键词  阿托伐他汀;人胃癌AGS细胞;自噬;增殖;糖代谢


          Effect and mechanism of atorvastatin on the proliferation, autophagy and glucose metabolism of AGS cells
          in human gastric cancer
          SUN Xiangrui ,CUI Chenling ,WANG Wei ,WANG Qingfei(1.  Dept.  of  Pharmacy,  the  Second  Affiliated
                                                                  1
                                     1
                      1
                                                  2
          Hospital of Bengbu Medical College, Anhui Bengbu 233000, China;2. Dept. of Surgical Oncology, the Second
          Affiliated Hospital of Bengbu Medical College, Anhui Bengbu 233000, China)
          ABSTRACT   OBJECTIVE  To  explore  the  effects  and  mechanism  of  atorvastatin  on  the  proliferation,  autophagy  and  glucose
          metabolism of AGS cells in human gastric cancer. METHODS The effects of low, medium and high concentrations of atorvastatin
         (12.5,  25,  50  μmol/L)  on  the  viability of AGS  cells  were  investigated through  preliminary experiments,  and  the  concentration  of
          action  was  screened.  The  formal  experiment  was  divided  into  control  group (no  intervention),  atorvastatin  group (25  μmol/L),
          positive control group (50 mg/L 5-fluorouracil), inhibitor group [25 μmol/L atorvastatin +10 μmol/L phosphatidylinositol-3-kinase
         (PI3K)/protein  kinase  B (Akt)  signaling  pathway  inhibitor  LY294002]  and  activator  group (25  μmol/L  atorvastatin  +10  μmol/L
          PI3K/Akt  signaling  pathway  activator  SC79),  all  of  which  were  treated  for  24  h.  Glucose  metabolism (glucose  and  lactic  acid
          contents)  and  cell  proliferation  rate  were  detected,  as  well  as  the  expression  of  autophagy-associated  protein  light  chain  3 (LC3)
          Ⅰ ,  LC3 Ⅱ  and  PI3K/Akt  signaling  pathway-associated  proteins  in  cells.  RESULTS  Both  medium  and  high  concentrations  of
          atorvastatin could significantly inhibit the viability of AGS cells (P<0.05), and 25 μmol/L atorvastatin was selected for the official
          experiment  for  follow-up  experiments.  Compared  with  the  control  group,  the  contents  of  glucose  and  lactic  acid,  cell  proliferation
          rate,  p-PI3K/PI3K  and  p-Akt/Akt  ratios  in  the  positive  control  group  and  atorvastatin  group  were  significantly  decreased (P<
          0.05),  and  the  protein  expression  levels  of  LC3 Ⅰ  and  LC3 Ⅱ  were  significantly  increased (P<0.05).  Compared  with  the
          atorvastatin  group,  the  inhibitor  further  promoted  the  changes  in  the  above  indexes (P<0.05),  and  the  activator   significantly
          reversed  the  changes  in  the  above  indexes (P<0.05).  CONCLUSIONS  Atorvastatin  could  inhibit  glucose  metabolism  and
          proliferation  of AGS  cells  in  human  gastric  cancer  and  promote  autophagy. The  mechanism  may  be  related  to  the  inhibition  of  the
                                                             PI3K/Akt signaling pathway.
             Δ 基金项目 国家卫生健康委“十四五”规划全国重点课题(No.                 KEYWORDS     atorvastatin;  human  gastric  cancer AGS  cells;
          YYWS4369);安徽省卫生健康科研项目(No.AHWJ2022b079)
                                                             autophagy; proliferation; glucose metabolism
             *第一作者 副主任药师。研究方向:医院药学、药理学。E-mail:
          504429467@qq.com


          中国药房  2023年第34卷第18期                                              China Pharmacy  2023 Vol. 34  No. 18    · 2187 ·
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