中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (2): 286-291.doi: 10.3969/j.issn.2095-4344.2962

• 组织构建细胞学实验 cytology experiments in tissue construction • 上一篇    下一篇

黄芩苷对脂多糖联合三磷酸腺苷刺激BEAS-2B细胞氧化应激的影响

从人愿,袁  静,夏金婵,孙  颖   

  1. 河南中医药大学基础医学院,河南省郑州市  450046
  • 收稿日期:2020-03-17 修回日期:2020-03-21 接受日期:2020-04-21 出版日期:2021-01-18 发布日期:2020-11-21
  • 通讯作者: 夏金婵,博士,副教授,河南中医药大学基础医学院,河南省郑州市 450046
  • 作者简介:从人愿,女,1992年生,河南省平舆县人,汉族,河南中医药大学基础医学院在读硕士,主要从事中医药治疗感染性疾病相关研究
  • 基金资助:
    国家自然科学青年基金项目(81803863);河南省科技厅科技研发专项(192102310163);河南省高等学校青年骨干教师培养计划(2017GGJS080);河南中医药大学2019年度研究生科研创新类项目(2019KYCX018)

Effects of baicalin on oxidative stress in BEAS-2B cells stimulated by lipopolysaccharide combined with adenosine triphosphate

Cong Renyuan, Yuan Jing, Xia Jinchan, Sun Ying    

  1. Basic Medical College of Henan University of Chinese Medicine, Zhengzhou  450046, Henan Province, China
  • Received:2020-03-17 Revised:2020-03-21 Accepted:2020-04-21 Online:2021-01-18 Published:2020-11-21
  • Contact: Xia Jinchan, MD, Associate professor, Basic Medical College of Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China
  • About author:Cong Renyuan, Master candidate, Basic Medical College of Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China
  • Supported by:
    the National Natural Science Foundation of China (Youth Project), No. 81803863; Special Research and Development Project of Henan Provincial Department of Science and Technology Department, No. 192102310163; Henan Provincial Young Teacher Training Program for High Educations, No. 2017GGJS080; 2019 Graduate Research and Innovation Project of Henan University of Chinese Medicine, No. 2019KYCX018

摘要:

文题释义:
黄芩苷:是从传统中药黄芩的根部提取分离出的一种黄酮类化合物,具有较强的抗炎、抗氧化、抗肿瘤等作用。研究发现,黄芩苷可通过降低炎症因子的水平、抑制 NF-κB 信号通路的激活进而降低脂多糖诱导的急性肺损伤小鼠模型的炎症反应,为临床治疗急性肺损伤提供了有力的实验依据。
氧化应激:当机体受到刺激时,自由基过度产生,氧化/抗氧化失衡,机体就会处于氧化应激状态。氧化应激被认为和机体炎症反应密切相关。研究发现,在急性肺损伤的发病机制中,脂多糖作为内毒素的主要成分,可诱导气道和肺组织中产生氧化应激反应,释放大量活性氧,进而激活TXNIP/NLRP3炎症信号通路,促进疾病的发生发展。 

背景氧化应激及炎症反应在急性肺损伤的发生发展过程中发挥了重要的作用,研究表明黄芩苷具有抗氧化、抗炎等生物活性。
目的:探讨黄芩苷对脂多糖联合三磷酸腺苷刺激人正常支气管上皮细胞BEAS-2B氧化应激和TXNIP/NLRP3通路的影响。
方法:采用脂多糖/三磷酸腺苷联合刺激BEAS-2B细胞建立炎症模型,将细胞随机分为空白对照组、模型组和黄芩苷低、中、高剂量组(2.5,5,10 mg/L);采用MTT法检测细胞活力,ELISA法检测细胞因子白细胞介素1β、白细胞介素6、白细胞介素18和肿瘤坏死因子ɑ水平,荧光探针DCFH-DA法检测各组细胞内活性氧水平,酶标仪检测超氧化物歧化酶和丙二醛水平,实时荧光半定量PCR检测TXNIP、NLRP3、ASC、Caspase-1、白细胞介素1β和白细胞介素18 mRNA的表达水平,Western blot检测细胞中TXNIP、Caspase-1、NLRP3蛋白表达量。
结果与结论:与空白对照组相比,模型组细胞内活性氧和丙二醛水平升高,超氧化物歧化酶活性降低,细胞活力下降,细胞因子白细胞介素1β、白细胞介素6、白细胞介素18、肿瘤坏死因子ɑ的分泌量和TXNIP、NLRP3、ASC、Caspase-1、白细胞介素1β、白细胞介素18的基因表达量以及TXNIP、Caspase-1、NLRP3蛋白表达量均显著升高。与模型组比较,黄芩苷组可显著逆转上述指标,且呈浓度依赖性。结果表明,黄芩苷可通过减轻氧化应激反应,进而抑制TXNIP/NLRP3炎症通路的激活,来发挥其对脂多糖/三磷酸腺苷联合诱导BEAS-2B细胞损伤的保护作用。

https//orcid.org/0000-0002-1310-6213(从人愿) 

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 黄芩苷, 支气管, 上皮细胞, BEAS-2B细胞, 氧化应激, 炎症, 通路, 因子

Abstract: BACKGROUND: Oxidative stress and inflammatory reaction play important roles in the occurrence and development of acute lung injury. Studies have shown that baicalin has biological activities such as antioxidant and anti-inflammatory. 
OBJECTIVE: To investigate the effects of baicalin on oxidative stress and TXNIP/NLRP3 pathway in BEAS-2B cells induced by lipopolysaccharide combined with adenosine triphosphate. 
METHODS: The inflammatory model of BEAS-2B cells was established by lipopolysaccharide combined with adenosine triphosphate stimulation. The cells were randomly divided into blank control group, model group and baicalin group (2.5, 5, and 10 mg/L). MTT method was used to detect the cell vitality. ELISA was used to detect the levels of interleukin-1β, interleukin-6, interleukin-18 and tumor necrosis factor-ɑ. The changes of intracellular reactive oxygen species, superoxide dismutase and malondialdehyde were measured by fluorescent probe DCFH-DA and microplate reader, respectively. qRT-PCR was used to detect the mRNA expression levels of TXNIP, NLRP3, ASC, Caspase-1, interleukin-1β and interleukin-18. Western blot was used to detect the protein expression of TXNIP, Caspase-1 and NLRP3 in the cells. 
RESULTS AND CONCLUSION: Compared with the blank control group, intracellular reactive oxygen species and malondialdehyde levels were significantly increased in the model group, while the activity of superoxide dismutase and cell viability were significantly decreased. There was a significant increase in the secretion levels of interleukin-1β, interleukin-6, interleukin-18, tumor necrosis factor-ɑ as well as the gene expression levels of TXNIP, NLRP3, ASC, Caspase-1, interleukin-1β, interleukin-18 and the protein expression levels of TXNIP, Caspase-1 and NLRP3 in the model group compared with the blank control group. Baicalin could considerably reverse the above indicators in a concentration-dependent manner. To conclude, baicalin has a protective effect on the damage in BEAS-2B cells stimulated by lipopolysaccharide combined with adenosine triphosphate, by reducing oxidative stress and inhibiting the activation of the TXNIP/NLRP3 signaling pathway. 

Key words: baicalin, bronchus, epithelial cell, BEAS-2B cell, oxidative stress, inflammation, pathway, factor

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