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纸质出版日期:2018
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张志毕, 蔡婷, 缪紫娥, 等. 阿魏酸钠对乙醛诱导的肝星状细胞增殖、活化和胶原合成的影响[J]. 中国实验方剂学杂志, 2018,24(12):123-128.
ZHANG Zhi-bi, CAI Ting, MIAO Zi-e, et al. Effect of Sodium Ferulate on Proliferation, Activation and Collagen Synthesis of Hepatic Stellate Cells Induced by Acetaldehyde[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(12): 123-128.
张志毕, 蔡婷, 缪紫娥, 等. 阿魏酸钠对乙醛诱导的肝星状细胞增殖、活化和胶原合成的影响[J]. 中国实验方剂学杂志, 2018,24(12):123-128. DOI: 10.13422/j.cnki.syfjx.20181132.
ZHANG Zhi-bi, CAI Ting, MIAO Zi-e, et al. Effect of Sodium Ferulate on Proliferation, Activation and Collagen Synthesis of Hepatic Stellate Cells Induced by Acetaldehyde[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(12): 123-128. DOI: 10.13422/j.cnki.syfjx.20181132.
目的:研究阿魏酸钠(SF)对体外乙醛诱导的大鼠肝星状细胞(HSC-T6)增殖、活化、胶原合成的影响及其作用机制。方法:体外培养HSC-T6细胞,建立乙醛诱导的HSC-T6增殖模型,设空白组、乙醛组、秋水仙碱组(2.5 μmol·L-1)及SF组(1,10,25,50,100,200,400 μmol·L-1),通过细胞增殖和毒性检测(MTS)比色法检测细胞增殖,筛选合适的SF浓度。蛋白免疫印迹法(Western blot)检测SF (400,200,100 μmol·L-1)对乙醛诱导的HSC-T6细胞α-平滑肌肌动蛋白(α-SMA)表达;酶联免疫吸附测定法(ELISA)检测Ⅰ型,Ⅲ型胶原浓度,酸水解法检测羟脯氨酸(Hyp)含量,实时荧光定量聚合酶链式反应(Real-time PCR)检测转化生长因子-β1/(TGF-β1/),信号转导蛋白Smad2,Smad3,Smad4,Smad7,基质金属蛋白酶-1(MMP-1)和金属蛋白酶抑制剂-1(TIMP-1)基因mRNA表达变化。结果:与空白组比较,200 μmol·L-1的乙醛能显著诱导HSC-T6体外增殖(P<0.01);与空白组比较,模型组HSC-T6增殖显著增加(P<0.01),α-SMA和I型,Ⅲ型胶原和Hyp含量显著增加(P<0.01),TGF-β1/,Smad2,Smad3,Smad4,Smad7 mRNA的表达显著上调(P<0.01),MMP-1和TIMP-1 mRNA表达显著上调(P<0.01)。与模型组比较,400,200,100 μmol·L-1浓度的SF能明显抑制乙醛诱导的HSC-T6增殖(P<0.05,P<0.01),显著降低α-SMA和I型,Ⅲ型胶原和Hyp含量(P<0.01),下调TGF-β1/,Smad2,Smad3,Smad4基因mRNA的表达(P<0.05,P<0.01),上调Smad7基因mRNA表达(P<0.01),并明显上调MMP-1 mRNA表达(P<0.05,P<0.01)和下调TIMP-1 mRNA表达(P<0.01)。结论: SF能通过调控TGF-β1/Smad和MMP-1/TIMP-1信号通路,抑制乙醛诱导的体外HSC-T6细胞的增殖,活化和胶原分泌。
Objective: To investigate the effect of sodium ferulate (SF) on the proliferation
activation and collagen synthesis of rat hepatic stellate cells (HSC-T6) induced by acetaldehyde in vitro and explore its mechanism. Method: HSC-T6 cells were cultured in vitro to establish acetaldehyde-induced HSC-T6 proliferation models. The rats were divided into blank group
acetaldehyde group
colchicine group (2.5 μmol·L-1)
and SF groups (1
10
25
50
100
200
400 μmol·L-1). HSC-T6 proliferation was measured by MTS method and the appropriate SF concentration was screened. The effect of SF (400
200
100 μmol·L-1) on the expression of α-smooth muscle actin (α-SMA) in HSC-T6 cells induced by acetaldehyde was detected by Western blot; type I and type Ⅲ collagen concentrations were detected by Enzyme-linked immunosorbent assay (ELISA); the Hydroxyproline (Hyp) content was detected by hydrolysis method; mRNA expression levels of transforming growth factor-β1 (TGF-β1)
signal transducers Smad2
Smad3
Smad4
Smad7
Matrix metallo proteinase 1 (MMP-1) and tissue inhibitors of metallo proteinase-1 (TIMP-1) were detected by real-time fluorescence quantitative polymerase chain reaction (Real-time PCR). Result: As compared with the blank group
200 μmol·L-1 acetaldehyde significantly induced HSC-T6 proliferation in vitro (P<0.01). As compared with the blank group
the proliferation of HSC-T6 in model group was significantly increased (P<0.01)
and the contents of α-SMA
type I
type Ⅲ collagen and Hyp were significantly increased (P<0.01)
the mRNA expression levels of TGF-β1
Smad2
Smad3
Smad4 and Smad7 as well as mRNA expression levels of MMP-1 and TIMP-1 were significantly up-regulated (P<0.01). As compared with the model group
SF at concentrations of 400
200
100 μmol·L-1 significantly inhibited acetaldehyde-induced HSC-T6 proliferation (P<0.05
P<0.01)
significantly decreased α-SMA
type I and type Ⅲ collagen and Hyp contents (P<0.05
P<0.01)
down-regulated the mRNA expression of TGF-β1
Smad2
Smad3 and Smad4 (P <0.05
P<0.01)
up-regulated the mRNA expression of Smad7 mRNA (P<0.05
P<0.01) and down-regulated the mRNA expression of TIMP-1 (P<0.01). Conclusion: SF can inhibit proliferation
activation and collagen secretion of HSC-T6 induced by acetaldehyde in vitro by regulating TGF-β1/Smads and MMP-1/TIMP-1 signaling pathways.
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