Roles of TGF-β Signaling Pathway in Endoplasmic Reticulum Stress in Endothelial Cells Stimulated with Cigarette Smoke Extract

• Published in: Current medical science 2017-10, Vol.37 (5), p.699-704
• Main Authors: 黄宏, 丁秋丽, 朱慧芬, 杨道锋
• Format: Article
• Language: English
• Subjects: Endoplasmic Reticulum - drug effects; Endoplasmic Reticulum - genetics; Endoplasmic Reticulum - metabolism; Endoplasmic Reticulum Chaperone BiP; Endoplasmic Reticulum Stress - drug effects; Endothelial Cells - drug effects; Endothelial Cells - metabolism; Gene Expression Regulation - drug effects; Heat-Shock Proteins - genetics; Heat-Shock Proteins - metabolism; Human Umbilical Vein Endothelial Cells; Humans; Interleukin-8 - genetics; Interleukin-8 - metabolism; Medicine; Medicine & Public Health; Nicotiana; Signal Transduction - drug effects; Smoke - adverse effects; Transforming Growth Factor beta - genetics; Transforming Growth Factor beta - metabolism
• ISSN: 1672-0733; 2096-5230; 1993-1352; 2523-899X
• DOI: 10.1007/s11596-017-1791-z

To investigate the role of signaling pathway in the effect of endoplasmic reticulum stress（ER stress） in endothelial cells stimulated with cigarette smoke extract（CSE）. Human umbilical vein endothelial cells（HUVECs） were cultured and divided into 3 groups： CSE-stimulated group, CSE-stimulated with 4-PBA group, and negative control group. HUVECs were cultured and stimulated with CSE at concentrations of 5%, 10% and 20%, respectively, mR NA of CXCL-8 and GRP78 was detected by real-time PCR. ELISA was performed to test the expression of CXCL-8 protein, and neutrophils migration was detected by Transwell board test. The NF-κB, ERK, p38 MAPK and transforming growth factor beta（TGF-β） were detected by flow cytometry. The mRNA of CXCL-8 and GRP78 increased in CSE-stimulated HUVECs（P〈0.05）. Furthermore, it was concentration-dependent. 4-PBA significantly reduced the expression of CXCL-8 protein（P〈0.05） and neutrophil migration（P〈0.05）. The TGF-β, rather than the NF-κB, ERK and P38 MAPK pathway might be involved in ER stress stimulated by CSE. CSE induced neutrophils migration by increasing the expression of CXCL-8 in endothelial cells. ER stress might play a role in the effect of neutrophils migration stimulated with CSE, and TGF-β pathway may contribute to the ER stress in HUVECs.