首页|华支睾吸虫排泄/分泌产物对肝纤维化的影响

华支睾吸虫排泄/分泌产物对肝纤维化的影响

扫码查看
为了探讨华支睾吸虫排泄/分泌产物(ESPs)对大鼠肝星状细胞(HSCs)的影响,采用不同质量浓度的华支睾吸虫ESPs(CsESPs)处理HSC-T6 细胞,利用CCK8 法检测CsESPs对HSC-T6 细胞活力的影响,并以MCC950 预处理细胞作为对照,利用RT-qPCR和Western-blot分别检测细胞中NLRP3、Caspase-1、IL-1β、α-SMA、Col1α1 和Col3α1 的基因和蛋白表达水平.结果显示,与对照组相比,25、50 和 100 μg/mL的CsESPs对细胞活力无明显影响;当CsESPs的质量浓度达到 50 μg/mL时,与对照组相比,NLRP3 及其下游的Caspase-1、IL-1β基因的相对表达水平显著升高,HSC-T6 细胞激活的标志基因α-SMA及纤维化相关的Col1α1 基因的相对表达水平也显著升高;Western-blot结果显示,与对照组相比,50 μg/mL的CsESPs可以使 HSC-T6 细胞中NLRP3、Caspase-1、IL-1β、α-SMA、Col1α1 及Col3α1 的蛋白表达水平显著升高,而在MCC950 预处理细胞组,这 6 个指标的基因和蛋白表达水平均被明显抑制.结果表明,CsESPs 可以使HSC-T6 细胞活化,诱导细胞内NLRP3 炎性小体活化及胶原表达,NLRP3 炎性小体活化是华支睾吸虫感染所致肝纤维化的关键环节之一.
Effect of excretory/secretory products of Clonorchis sinensis on liver fibrosis
In order to investigate the effect of Clonorchis sinensis excretory/secretory products(ESPs)on rat hepatic stellate cell(HSCs),the HSC-T6 cells were treated with different concentrations of CsESPs,and the effects of CsESPs on cell viability were detected by CCK8 method,and at the same time,MCC950 pretreated cells were used as a control,and RT-qPCR and Western-blot were used to detect the gene and protein expression levels of NLRP3,Caspase-1,IL-1β,α-SMA,Col1α1 and Col3α1 in HSC-T6 cells.The results showed that,compared to the control group,25,50 and 100 μg/mL CsESPs had no significant effect on cell viability.When the concentration of CsESPs reached 50 μg/mL,the relative gene expres-sion levels of NLRP3 and its downstream Caspase-1 and IL-1β were significantly increased compared to the control group,and the mRNA expression levels of α-SMA as the marker gene for HSC-T6 cells activa-tion,and Col1α1 as the fibrosis gene,were also significantly higher compared to the control group.Western-blot results showed that,compared to the control group,50 μg/mL CsESPs significantly in-creased the protein expression levels of NLRP3,Caspase-1,IL-1β,α-SMA,Col1α1 and Col3α1 in HSC-T6 cells.But at MCC950 pretreatment groups,the genes and protein expression levels of these six indica-tors were significantly inhibited.The results indicated that CsESPs can activate HSC-T6 cells and in-duce the activation of NLRP3 inflammasome and collagen expression in cells.The activation of NLRP3 in-flammasome was one of the key links of liver fibrosis caused by Clonorchis sinensis infection.

Clonorchis sinensisexcretory/secretory productshepatic stellate cellsNLRP3 in-flammasomeliver fibrosis

孙云异、魏伟、毛瑞锋、张馨慧、王佳文、刘雪薇、高俊峰、王春仁

展开 >

黑龙江八一农垦大学 动物科技学院,黑龙江 大庆 163319

华支睾吸虫 排泄/分泌产物 肝星状细胞 NLRP3炎性小体 肝纤维化

国家自然科学基金国家自然科学基金黑龙江省自然科学基金黑龙江八一农垦大学三横三纵支持计划

3197270332172886ZD2022C006ZRCQC202204

2024

中国兽医科学
中国农业科学院兰州兽医研究所

中国兽医科学

CSTPCD北大核心
影响因子:0.524
ISSN:1673-4696
年,卷(期):2024.54(5)
  • 25