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雷公藤红素通过 FAK/MEK/ERK 信号通路对肝癌细胞耐药性的

          影响
                 Δ


          罗晓明 ,曾贤敏 ,蔡良韧 ,郑 新(1.湖北省第三人民医院肝胆胰外科,武汉 430033;2.武汉市第三医院普
                                  1
                 1*
                                          2
                          1
          外科,武汉 430060)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2024)20-2477-05
          DOI  10.6039/j.issn.1001-0408.2024.20.06

          摘  要  目的  探究雷公藤红素(CSL)对肝癌细胞耐药性的影响。方法  采用仑伐替尼(Len)构建耐药人肝癌细胞Huh7/Len,分为
          对照组,CSL低、中、高浓度组(1、2.5、5 μmol/L),CSL高浓度+Zn27[黏着斑激酶(FAK)激活剂]组(5 μmol/L CSL+2 nmol/L Zn27),
          每组设置 6 个复孔。检测细胞增殖(以吸光度计)和克隆能力、凋亡率、侵袭数、迁移数,以及细胞中活性氧(ROS)水平和磷酸化
          FAK(p-FAK)、磷酸化丝裂原活化蛋白激酶激酶(p-MEK)、磷酸化胞外信号调节激酶(p-ERK)、B细胞淋巴瘤2(Bcl-2)、Bcl-2相关
          X蛋白(Bax)、胱天蛋白酶3(caspase-3)蛋白表达。结果  与对照组比较,CSL低、中、高浓度组细胞的吸光度、克隆数、侵袭数、迁移
          数和p-FAK、p-MEK、p-ERK、Bcl-2蛋白相对表达量均显著降低,细胞凋亡率、ROS水平和Bax、caspase-3蛋白相对表达量均显著升
          高,且呈浓度依赖性(P<0.05);与 CSL 高浓度组比较,CSL 高浓度+Zn27 组细胞中上述指标变化均显著逆转(P<0.05)。结论
          CSL能增强氧化应激,促进细胞凋亡,抑制肝癌细胞恶性进展和化疗耐药性,其机制可能与抑制FAK/MEK/ERK信号通路有关。
          关键词  雷公藤红素;肝癌;FAK/MEK/ERK信号通路;恶性进展;耐药性

          Effects of celastrol on drug resistance of liver cancer cells through FAK/MEK/ERK signaling pathway
                                                     1
                                                                  2
          LUO Xiaoming ,ZENG Xianmin ,CAI Liangren ,ZHENG Xin(1.  Dept.  of  Hepatobiliary  Pancreatic  Surgery,
                       1
                                       1
          Hubei  Third  People’s  Hospital,  Wuhan  430033,  China;2.  Dept.  of  General  Surgery,  Wuhan  Third  Hospital,
          Wuhan 430060, China)
          ABSTRACT   OBJECTIVE  To  investigate  the  effects  of  celastrol (CSL)  on  drug  resistance  of  liver  cancer  cells.  METHODS
          Human liver cancer lenvatinib (Len)-resistant cells Huh7/Len were constructed and divided into control group, CSL low-, medium-
          and  high-concentration  groups (1,  2.5,  5  μmol/L),  and  CSL  high-concentration+Zn27  [focal  adhesion  kinase (FAK)  inhibitor]
          group (5  μmol/L  CSL+2  nmol/L  Zn27),  with  6  holes  in  each  group.  The  proliferation (by  absorbance)  and  cloning  ability,
          apoptotic rate, the number of invasion cells and migration cells, the level of reactive oxygen species(ROS) as well as the protein
          expressions  of  phosphorylated  FAK (p-FAK),  phosphorylated  mitogen-activated  protein  kinase  kinase (p-MEK),  phosphorylated
          extracellular  signal-regulated  kinase (p-ERK),  B-cell  lymphoma-2 (Bcl-2),  Bcl-2  associated  X  protein (Bax)  and  caspase-3  were
          detected.  RESULTS  Compared  with  control  group,  cell  absorbance,  clone  count,  invasion  count  and  migration  count  ,  and  the
          protein  expressions  of  p-FAK,  p-MEK,  p-ERK  and  Bcl-2  were  significantly  reduced  in  the  CSL  low- ,  medium- ,  high-
          concentration groups; the apoptosis rate, ROS level, and protein expressions of Bax and caspase-3 were significantly increased, in
          a concentration-dependent manner (P<0.05). Compared with CSL high-concentration group, the changes of above indexes were all
          reversed  significantly  in  CSL  high-concentration+Zn27  group (P<0.05).  CONCLUSIONS  CSL  can  enhance  oxidative  stress,
          promote cell apoptosis, inhibit malignant progression and chemotherapy resistance of liver cancer cells, and its mechanism may be
          related to the inhibition of the FAK/MEK/ERK signaling pathway.
          KEYWORDS    celastrol; liver cancer; FAK/MEK/ERK kinase pathway; malignant progression; drug resistance



              肝癌(liver cancer,LC)是常见的致命性肿瘤,发病                的常用方法,但耐药性明显 。因此,急需寻找合适的治
                                                                                    [1]
          率呈逐年增加趋势,患者确诊时常常已为晚期,导致其                           疗方案并探索其作用机制,以应对LC的进展和耐药性。
          预后较差,也仅有部分早期患者可进行手术切除治疗,                               雷公藤红素(celastrol,CSL)是一种萜类物质,具有
          且有一定的术后并发症发生风险。化疗为临床治疗LC                           抗炎、治疗肥胖等作用,能通过诱导 LC、前列腺癌等多
                                                             种肿瘤细胞生成活性氧(reactive oxygen species,ROS)
             Δ 基金项目 湖北省中医药管理局中医药科研项目(No.ZY2023-
                                                                                            [2]
                                                             来抑制肿瘤生长,发挥抗肿瘤的作用 。既往研究报道,
          F061)
             *第一作者 副主任医师。研究方向:肝胆胰系统疾病。E-mail:                黏着斑激酶(focal adhesion kinase,FAK)在多种肿瘤细
          hkhf08@163.com                                     胞系中呈过表达,可通过控制肿瘤细胞黏附和迁移来促


          中国药房  2024年第35卷第20期                                              China Pharmacy  2024 Vol. 35  No. 20    · 2477 ·
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