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柚皮素通过激活凋亡信号抑制肝星状细胞活化
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          吴丽霞 ,王雨薇 ,吴红雁 (1.安徽省庐江县人民医院儿科,合肥 231501;2.南京中医药大学药学院,南京
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          210023;3.江苏医药职业学院医药生物技术研究院,江苏 盐城 224005)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2023)10-1187-06
          DOI  10.6039/j.issn.1001-0408.2023.10.07

          摘  要  目的  研究柚皮素对肝星状细胞活化的体外抑制作用及可能机制。方法  以人正常肝细胞LO2为参照,在MTT法筛选药
          物干预浓度的基础上,考察柚皮素(Western blot实验和台盼蓝染色实验浓度为10、20、40 μmol/L,免疫荧光实验浓度为40 μmol/L)对
          人肝星状细胞LX2肝纤维化标志物蛋白[胶原纤维Ⅰ(collagenⅠ)、α-平滑肌肌动蛋白(α-SMA)]及mRNA(collagen Ⅰ前体α1-pro
          collagen Ⅰ、α-SMA)表达、细胞凋亡及凋亡相关蛋白[Bcl-2、Bax、剪切的胱天蛋白酶3(cleaved caspase-3)]表达的影响;选择凋亡抑
          制剂(Z-VAD-FMK,FMK)、铁死亡通路抑制剂ferrostatin-1、程序性死亡通路抑制剂necrostatin-1对上述作用机制进行验证。结果
          柚皮素可显著下调 LX2 细胞中 collagen Ⅰ(柚皮素 10 μmol/L 除外)、α-SMA 蛋白及 α1-pro collagen Ⅰ(柚皮素 10 μmol/L 除外)、
          α-SMA mRNA 的表达(P<0.05),可诱导 LX2 细胞凋亡并提高其凋亡比例,可显著下调 Bcl-2 蛋白的表达并上调 Bax(柚皮素 10
          μmol/L除外)、cleaved caspase-3(柚皮素10 μmol/L除外)蛋白的表达;FMK可逆转柚皮素对LX2细胞的上述作用(P<0.05)。结
          论  柚皮素可通过激活肝星状细胞LX2的凋亡信号来抑制其活化,从而发挥对肝纤维化的改善作用。
          关键词  柚皮素;肝星状细胞;肝纤维化;细胞凋亡信号

          Inhibitory  effects  of  naringenin  on  the  activation  of  hepatic  stellate  cells  through  activating  the  apoptosis
          signal
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          WU Lixia ,WANG Yuwei ,WU Hongyan(1.  Dept.  of  Pediatrics,  Lujiang  County  People’s  Hospital  of Anhui
          Province,  Hefei  231501,  China;2.  School  of  Pharmacy,  Nanjing  University  of  Chinese  Medicine,  Nanjing
          210023,  China;3.  Institute  of  Biomedical  Technology,  Jiangsu  Vocational  College  of  Medicine,  Jiangsu
          Yancheng 224005, China)

          ABSTRACT   OBJECTIVE  To  study  the  inhibitory  effects  and  possible  mechanism  of  naringenin  on  the  activation  of  hepatic
          stellate cells.  METHODS  Using  human hepatocytes LO2  as  reference,  based  on  drug  intervention concentration  screened by  MTT
          assay, the effects of naringenin (Western blot assay and trypan blue staining test in 10, 20, 40 μmol/L, immunofluorescence assay
          in  40  μmol/L)  on  the  expressions  of  liver  fibrosis  markers  protein (collagen  Ⅰ ,  α -SMA)  and  mRNA (α1-pro  collagen  Ⅰ ,
          α-SMA)  in  human  hepatic  stellate  cells  LX2,  and  the  expressions  of  cell  apoptosis  and  apoptosis-related  proteins (Bcl-2,  Bax,
          cleaved caspase-3) were investigated. The apoptosis agents (Z-VAD-FMK, FMK), ferroptosis pathway inhibitor ferrostatin-1, and
          programmed  death  pathway  inhibitor  necrostatin-1  were  used  to  verify  the  mechanism  of  the  above  effects.  RESULTS  The
          naringenin  could  significantly  down-regulate  protein  expressions  of  collagen  Ⅰ (except  for  naringenin  10  μmol/L)  and  α-SMA,
          mRNA  expressions  of  α1-pro  collagen  Ⅰ (except  for  naringenin  10  μmol/L)  and  α-SMA (P<0.05);  it  also  induced  LX2  cell
          apoptosis  and  increased  its  apoptotic  ratio,  down-regulated  the  protein  expression  of  Bcl-2  while  up-regulated  the  protein
          expressions  of  Bax (except  for  naringenin  10  μmol/L)  and  cleaved  caspase-3 (except  for  naringenin  10  μmol/L).  FMK  could
          reverse  above  effects  of  naringenin  on  LX2  cells (P<0.05).  CONCLUSIONS  Naringenin  can  inhibit  the  activation  of  hepatic
          stellate cells LX2 through activating the cell apoptosis signal, which plays ameliorative role in liver fibrosis.
          KEYWORDS    naringenin; hepatic stellate cells; liver fibrosis; cell apoptosis signal


                                                                 肝纤维化是一种由饮酒过量、病毒(乙型和丙型肝
             Δ 基金项目 国 家 自 然 科 学 基 金 资 助 项 目(No. 81873134,No.
          82274339);江苏高校“青蓝工程”中青年学术带头人培养对象资助项                炎病毒)感染和非酒精性脂肪性肝炎、非酒精性脂肪肝
          目(No.苏教师函〔2020〕10号);江苏高校“青蓝工程”优秀教学团队培              病、自身免疫性肝炎等多种致病因素引起的慢性肝损伤
          养对象资助项目(No.苏教师函〔2021〕11号)                          性疾病 。有研究指出,若不及时干预肝纤维化患者的
                                                                   [1]
             *第一作者 副主任医师。研究方向:儿童肝脏疾病。E-mail:                 肝损伤,其病情将进一步发展为肝硬化甚至肝细胞癌 。
                                                                                                           [2]
          1094988007@qq.com
                                                             幸运的是,肝纤维化是一个可逆的过程。目前,肝星状
             # 通信作者 副教授,博士。研究方向:分子药理学。E-mail:
          why20133055@163.com                                细胞(hepatic stellate cell,HSC)被认为肝纤维化的驱动

          中国药房  2023年第34卷第10期                                              China Pharmacy  2023 Vol. 34  No. 10    · 1187 ·
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