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苦参碱对乙醛活化的肝星状细胞CFSC-8B增殖和胶原合成的影
响及机制研究 Δ
王晓丽(齐齐哈尔医学院药学院,黑龙江 齐齐哈尔 161006)
*
中图分类号 R962 文献标志码 A 文章编号 1001-0408(2020)11-1353-06
DOI 10.6039/j.issn.1001-0408.2020.11.12
摘 要 目的:研究苦参碱对乙醛活化的大鼠肝星状细胞CFSC-8B增殖和胶原合成的影响,并探讨其可能的作用机制。方法:取
体外培养的 CFSC-8B 细胞,分为空白对照组、模型组、阳性对照组(2.5 μmol/L 秋水仙碱)和苦参碱低、中、高浓度组(30、60、120
μmol/L)。除空白对照组外,其余各组细胞均加入200 μmol/L乙醛溶液诱导活化,并同时加入相应药液(空白对照组和模型组加入
等体积空白培养液),共同作用 24 h 后,采用 CCK-8 法检测各组细胞的存活率。另取细胞分为空白对照组、模型组、阳性对照组
(2.5 μmol/L秋水仙碱)和苦参碱中、高浓度组(60、120 μmol/L),同法活化和加药处理。分别采用酶消化法检测细胞培养液中羟脯
氨酸(Hyp)含量;采用酶联免疫吸附法检测细胞培养液中Ⅰ型胶原蛋白(Col-Ⅰ)和Ⅲ型胶原蛋白(Col-Ⅲ)含量;采用实时荧光定
量-聚合酶链式反应法检测细胞中α-平滑肌激动蛋白(α-SMA)、转化生长因子β 1 (TGF-β 1 )、TGF-β 1Ⅰ型受体(TβR-Ⅰ)、TGF-β 1Ⅱ型
受体(TβR-Ⅱ)、Smad3、Smad4 和 Smad7 mRNA 表达水平;采用 Western blotting 法检测细胞中α-SMA、TGF-β 1、TβR-Ⅰ、TβR-Ⅱ、
Smad3、Smad4 和 Smad7 蛋白表达水平。结果:与空白对照组比较,模型组细胞存活率显著升高(P<0.05);细胞培养液中 Hyp、
Col-Ⅰ、Col-Ⅲ含量和细胞中α-SMA、TGF-β 1、TβR-Ⅰ、TβR-Ⅱ、Smad3和Smad4 mRNA及其蛋白表达水平均显著升高(P<0.05),
细胞中Smad7 mRNA及其蛋白表达水平均显著降低(P<0.05)。与模型组比较,阳性对照组和苦参碱中、高浓度组细胞存活率和
细胞培养液中Hyp、Col-Ⅰ、Col-Ⅲ含量以及细胞中α-SMA、Smad4 mRNA及其蛋白表达水平均显著降低(P<0.05),细胞中Smad7
mRNA及其蛋白表达水平均显著升高(P<0.05);阳性对照组和苦参碱高浓度组细胞中TGF-β1、TβR-Ⅰ、TβR-Ⅱ、Smad3 mRNA及
其蛋白表达水平均显著降低(P<0.05)。与苦参碱中浓度组比较,苦参碱高浓度组细胞各指标水平改善程度均更显著(P<
0.05)。结论:苦参碱能抑制乙醛活化的CFSC-8B细胞的增殖和胶原合成,且具有一定的浓度依赖性;其机制可能与调控TGF-β 1/
Smad信号通路的传导有关。
关键词 苦参碱;肝星状细胞;增殖;胶原合成;转化生长因子β1/Smad通路;机制
Study on the Effects and Mechanism of Matrine on Proliferation and Collagen Synthesis of Hepatic
Stellate Cells CFSC-8B Activated by Acetaldehyde
WANG Xiaoli(School of Pharmacy,Qiqihar Medical University,Heilongjiang Qiqihar 161006,China)
ABSTRACT OBJECTIVE:To study the effects of matrine on proliferation and collagen synthesis of rat hepatic stellate cells
CFSC-8B activated by acetaldehyde,and to investigate its possible mechanism. METHODS:CFSC-8B cells cultured in vitro were
divided into blank control group,model group,positive control group(2.5 μmol/L colchicine)and matrine low,medium and high
concentration groups (30,60,120 μ mol/L). Except for blank control group,other groups were activated with 200 μ mol/L
acetaldehyde for 24 h;medicine groups were intervened with relevant medicine for 24 h(blank control group and model group
were intervened with equal volume blank medium). Survival rate of cell was detected by CCK-8 assay. Cells were divided into
blank control group,model group,positive control group(2.5 μmol/L colchicine),matrine medium and high concentration groups
(60,120 μmol/L),then activated and treated with same method. Hydroxyprolin(Hyp)content in cell culture solution was tested
by enzyme digestion. The contents of Col-Ⅰ and Col-Ⅲ in cell culture solution were determined by ELISA. mRNA expressionss of
α-SMA,TGF-β 1,T β R-І ,T β R- Ⅱ ,Smad3,Smad4 and Smad7 in cells were detected by RT-PCR. The protein expressions of
α-SMA,TGF-β 1,TβR-Ⅰ,TβR- Ⅱ,Smad3,Smad4 and Samd7 in cells were detected by Western blotting. RESULTS:Compared
with blank control group,survival rate of cells in model group was increased significantly(P<0.05);the contents of Hyp,Col-Ⅰ
and Col-Ⅲ in cell culture solution,mRNA and its protein expressions of α-SMA,TGF-β 1,TβR-Ⅰ,TβR-Ⅱ,Smad3,Smad4 in
cells were increased significantly in model group(P<0.05),while the mRNA and protein expression of Smad7 was decreased
significantly(P<0.05). Compared with model group,survival rate of cells,the contents of Hyp,Col-Ⅰ and Col-Ⅲ in cell culture
solution,the mRNA and protein expressions of α-SMA and Smad4 were decreased significantly in positive control group and
matrine medium and high concentration groups(P<0.05),
Δ 基金项目:黑龙江省自然科学基金面上项目(No.H2016098);
黑龙江省省属高等学校基本科研业务费科研项目(No.2018-KYY- while the mRNA and protein expression of Smad7 was
WF-0099) increased significantly (P<0.05); the mRNA and protein
*副教授,博士。研究方向:中药的药理作用及其作用机制。电 expressions of TGF-β 1,TβR-Ⅰ,TβR-Ⅱ and Smad3 were
话:0452-2664571。E-mail:ccwxl@126.com decreased significantly in positive control group and matrine
中国药房 2020年第31卷第11期 China Pharmacy 2020 Vol. 31 No. 11 ·1353 ·