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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 ·