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二甲双胍对食管鳞状细胞癌细胞的体内外抑制作用及机制
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          刘 山 ,胡 梦,张 倬,熊 飞,吴平尚,李雪曼(武汉市第三医院胸外科,武汉 430074)
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          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2025)17-2113-07
          DOI  10.6039/j.issn.1001-0408.2025.17.06


          摘  要  目的  基于低氧诱导因子1α(HIF-1α)/白细胞介素8(IL-8)信号通路探讨二甲双胍对食管鳞状细胞癌(ESCC)细胞的体内
          外抑制作用及机制。方法  将人食管鳞癌细胞TE1分为空白组,二甲双胍低、中、高浓度组(0.5、1、2 mmol/L),IDF-11774(HIF-1α
          抑制剂)组(20 μmol/L)和二甲双胍高浓度+HIF-1α 激活剂二甲基乙二酰氨基乙酸(DMOG)组(2 mmol/L 二甲双胍和 10 μmol/L
          DMOG)。处理24 h后,检测细胞增殖[以5-乙炔基-2′脱氧尿嘧啶核苷(EdU)阳性率和光密度(OD450值)计]、凋亡、侵袭、迁移情况
          以及细胞中增殖细胞核抗原(PCNA)、Bcl-2 相互作用的细胞死亡介质(Bim)、迁移侵袭增强因子 1(MIEN1)、基质金属蛋白酶 9
         (MMP-9) mRNA表达和HIF-1α、IL-8蛋白表达。构建裸鼠移植瘤模型。将30只裸鼠随机分为空白组,二甲双胍低、中、高剂量组
         (灌胃62.5、125、250 mg/kg二甲双胍并腹腔注射等体积生理盐水),IDF-11774组(灌胃50 mg/kg IDF-11774并腹腔注射等体积生
          理盐水)和二甲双胍高剂量+DMOG组(灌胃250 mg/kg二甲双胍并腹腔注射250 mg/kg DMOG),每组5只。每天给药1次,持续4
          周后,检测小鼠瘤体质量、体积及肿瘤组织中HIF-1α、IL-8蛋白表达。结果  二甲双胍可呈浓度/剂量依赖性地降低/减少TE1细胞
          的EdU阳性率、OD450值、侵袭数、划痕愈合率以及细胞中PCNA mRNA、MIEN1 mRNA、MMP-9 mRNA、HIF-1α 蛋白、IL-8蛋白表
          达水平和移植瘤瘤体质量、体积及肿瘤组织中HIF-1α、IL-8蛋白表达水平(P<0.05),升高细胞凋亡率和细胞中Bim mRNA表达水
          平(P<0.05);IDF-11774 组对应指标变化趋势与二甲双胍组一致,而 DMOG 能显著减弱高浓度/剂量二甲双胍的上述作用(P<
          0.05)。结论  二甲双胍可抑制TE1细胞增殖、侵袭、迁移及裸鼠体内移植瘤生长,诱导细胞凋亡;其机制可能与抑制HIF-1α/IL-8信
          号通路有关。
          关键词  二甲双胍;食管鳞状细胞癌;HIF-1α/IL-8信号通路;侵袭;增殖;迁移;凋亡


          The in vitro and in vivo inhibitory effects of metformin on esophageal squamous cell carcinoma cells
          LIU Shan,HU Meng,ZHANG Zhuo,XIONG Fei,WU Pingshang,LI Xueman(Dept.  of  Thoracic  Surgery,
          Wuhan Third Hospital, Wuhan 430074, China)

          ABSTRACT   OBJECTIVE  To  explore  the  in  vitro  and  in  vivo  inhibitory  effects  and  mechanism  of  metformin  on  the  malignant
          biological behavior of esophageal squamous cell carcinoma (ESCC) cells by the hypoxia inducible factor-1α (HIF-1α)/interleukin-8
         (IL-8)  signaling  pathway.  METHODS  Human  ESCC  TE1  cells  were  assigned  into  blank  group,  metformin  low-,  medium-,  and
          high-dose  groups (0.5,  1,  2  mmol/L),  IDF-11774 (HIF-1α  inhibitor)  group (20  μmol/L),  and  high-dose  metformin+HIF-1α
          activator dimethyloxalylglycine (DMOG) group. After 24 h treatment, cell proliferation [measured by the positive rate of 5-ethynyl-
          2′-deoxyuridine (EdU)  and  optical  density  at  450  nm (OD450  value)],  apoptosis,  invasion  and  migration  as  well  as  mRNA
          expressions  of  proliferating  cell  nuclear  antigen (PCNA),  Bcl-2  interacting  mediator  of  cell  death (Bim),  migration  and  invasion
          enhancer  1 (MIEN1),  and  matrix  metalloproteinase-9 (MMP-9),  and  protein  expressions  of  HIF-1α  and  IL-8  in  the  cells  were
          detected.  The  xenograft  tumor  model  of  nude  mice  was  established.  Thirty  nude  mice  were  randomly  divided  into  blank  group,
          metformin  low-,  medium-,  and  high-dose  groups (i.g.  administration  of  metformin  62.5,  125,  250  mg/kg+i.p.  administration  of
          equal volume of normal saline), IDF-11774 group (i.g. administration of 50 mg/kg IDF-11774+i.p. administration of equal volume
          of  normal  saline)  and  high-dose  metformin+DMOG  group (i. g.  administration  of  metformin  250  mg/kg+i. p.  administration  of
          DMOG  250 mg/kg),  with  5  mice  in  each  group.  They  were  given  relevant  medicine,  once  a  day,  for  4  consecutive  weeks;  the
          mass  and  volume  of  the  tumor  and  protein  expressions  of  HIF-1α  and  IL-8  in  the  tumor  tissue  were  determined.  RESULTS  The
          EdU  positive  rate,  OD450  value,  cell  invasion  number,  scratch  healing  rate,  mRNA  expressions  of  PCNA,  MIEN1  and  MMP-9,
          protein expressions of HIF-1α and IL-8, as well as the mass and volume of transplanted tumors and protein expressions of HIF-1α
                                                             and  IL-8  in  tumor  tissues  were  decreased  by  metformin  in
             Δ 基金项目 武汉市医学科学研究项目(No.WX23A32);武汉市中             concentration/dose-dependent  manner (P<0.05). Additionally,
          医药科研项目(No.WZ24Q18)                                 metformin  increased  the  apoptosis  rate  and  mRNA  expression
             *第一作者 主治医师,硕士。研究方向:食管癌的综合治疗。电
                                                             of  Bim  in  cells  (P<0.05).  The  trend  of  changes  in
          话:027-65399971。E-mail:l6p9ivd@163.com
             # 通信作者 副主任医师,硕士。研究方向:食管癌的综合治疗。                  corresponding  indicators  in  the  IDF-11774  group  was
          E-mail:nk0aj6d@163.com                             consistent  with  that  in  the  metformin  groups,  whereas  DMOG


          中国药房  2025年第36卷第17期                                              China Pharmacy  2025 Vol. 36  No. 17    · 2113 ·
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