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重楼皂苷Ⅸ通过调节 Fas/FasL 信号通路诱导肝癌细胞凋亡及对

          裸鼠移植瘤生长的抑制作用
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          姚敏娜 ,张 伟 ,高 凯 ,李锐莉 ,殷 英 ,郭 超 ,陆云阳 ,汤海峰 ,王婧雯 (1.空军军医大学西京医院
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          药剂科,西安 710032;2.空军军医大学药学系中药与天然药物学教研室,西安 710032)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2025)18-2238-06
          DOI  10.6039/j.issn.1001-0408.2025.18.04
          摘   要  目的  探讨重楼皂苷Ⅸ通过调节凋亡相关因子Fas/Fas配体(FasL)信号通路对肝癌细胞凋亡的诱导作用以及其对裸鼠移
          植瘤生长的抑制作用。方法  在细胞系及干预条件筛选的基础上,以HepG2细胞为对象,考察2、4 μmol/L PP9干预对细胞克隆形
          成能力、凋亡率以及 Fas、FasL、切割的胱天蛋白酶 8(cleaved caspase-8)、cleaved caspase-3 蛋白表达的影响;引入 Fas 抑制剂 KR-
          33493,考察 PP9 抗肝癌活性的潜在机制。以 HepG2 细胞荷瘤裸鼠模型为对象,以 5-氟尿嘧啶(20 mg/kg)为阳性对照,考察 10
          mg/kg PP9对荷瘤裸鼠瘤体体积、瘤体质量、细胞核增殖相关抗原Ki-67、cleaved caspase-3蛋白表达的影响。结果  与对照组比较,
          2、4 μmol/L PP9可显著降低细胞的克隆数和克隆形成率,显著升高其凋亡率和Fas、FasL、cleaved caspase-8、cleaved caspase-3蛋白
          的表达水平(P<0.05或P<0.01);而联用KR-33493可显著逆转PP9对Fas/FasL信号通路相关蛋白表达的上调作用(P<0.01)。与
          对照组裸鼠比较,PP9组裸鼠的瘤体体积(第27天)、瘤体质量、Ki-67蛋白的表达水平均显著降低,cleaved caspase-3蛋白的表达水平
          显著升高(P<0.01)。结论  PP9可通过激活Fas/FasL信号通路来诱导肝癌HepG2细胞凋亡;同时,PP9还能有效抑制裸鼠移植瘤的
          生长。
          关键词  重楼皂苷Ⅸ;肝细胞癌;HepG2细胞;凋亡;Fas/FasL信号通路

          Induction  of  apoptosis  in  hepatocellular  carcinoma  cells  by  polyphyllin  9  through  regulating  the  Fas/FasL
          signaling pathway and the inhibitory effect on the growth of transplanted tumor in nude mice
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          YAO Minna ,ZHANG Wei ,GAO Kai ,LI Ruili ,YIN Ying ,GUO Chao ,LU Yunyang ,TANG Haifeng ,
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          WANG Jingwen(1. Dept. of Pharmacy, Xijing Hospital of Air Force Medical University, Xi’an 710032, China;
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          2. Dept. of Chinese Materia Medica and Natural Medicines, School of Pharmacy, Air Force Medical University,
          Xi’an 710032, China)
          ABSTRACT    OBJECTIVE  To  investigate  the  induction  of  apoptosis  in  hepatocellular  carcinoma  cells  by  polyphyllin  9 (PP9)
          through the regulation of the Fas/Fas ligand (FasL) signaling pathway, and its inhibitory effect on the growth of transplanted tumor
          in  nude  mice.  METHODS  Based  on  the  screening  of  cell  lines  and  intervention  conditions,  HepG2  cells  were  selected  as  the
          experimental subject to investigate the effects of 2 μmol/L and 4 μmol/L PP9 treatment on cell colony formation activity, apoptosis
          rate,  as  well  as  the  protein  expressions  of  Fas,  FasL,  cleaved  caspase-8  and  cleaved  caspase-3. Additionally,  Fas  inhibitor  KR-
          33493  was  introduced  to  investigate  the  underlying  mechanism  of  PP9’s  anti-hepatocellular  carcinoma  activity.  Using  HepG2  cell
          tumor-bearing  nude  mice  model  as  the  object,  and  5-fluorouracil (20  mg/kg)  as  the  positive  control,  the  effects  of  10  mg/kg  PP9
          on  tumor  volume,  tumor  mass,  and  the  protein  expressions  of  the  nuclear  proliferation-associated  antigen  Ki-67  and  cleaved
          caspase-3  in  tumor-bearing  nude  mice  were  investigated.  RESULTS  Compared  with  the  control  group,  2,  4  μmol/L  PP9
          significantly decreased the number of clones and the clone formation rate of cells, but significantly increased the apoptosis rate, the
          protein  expressions  of  Fas,  FasL,  cleaved  caspase-8  and  cleaved  caspase-3 (P<0.05  or  P<0.01).  However,  the  combination  of
          Fas  inhibitor  KR-33493  could  significantly  reverse  the  effect  of  PP9  on  the  up-regulation  of  proteins  related  to  the  Fas/FasL
          signaling pathway (P<0.01). Compared with the control group, the tumor volume (on day 27), mass and protein expression of Ki-
          67 in nude mice of the PP9 group were significantly decreased, while the protein expression of cleaved caspase-3 was significantly
                                                              increased  (P<0.01).  CONCLUSIONS  PP9  can  induce
              Δ 基金项目 国家自然科学基金项目(No.81903862);陕西省卫生
                                                              apoptosis  of  HepG2  cells  by  activating  the  Fas/FasL  signaling
          健康科研创新能力提升计划平台建设项目(No.2023PT-10);陕西省自
                                                              pathway.  Meanwhile,  PP9  can  also  effectively  inhibit  the
          然科学基础研究计划项目(No.2024JC-YBMS-746)
             *第一作者 副主任药师,硕士。研究方向:中药抗肿瘤药理。                     growth of transplanted tumors in nude mice.
          E-mail:yaona3698@163.com                            KEYWORDS    polyphyllin  9;  hepatocellular  carcinoma;
              # 通信作者 副主任药师,硕士。研究方向:中药药理学、临床药                  HepG2 cells; apoptosis; Fas/FasL signaling pathway
          学。E-mail:wangjingwen8021@163.com


          · 2238 ·    China Pharmacy  2025 Vol. 36  No. 18                            中国药房  2025年第36卷第18期
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