TNFα regulates the expression of the CSE gene in HUVEC

  • Authors:
    • Maoxian Wang
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  • Published online on: August 31, 2021     https://doi.org/10.3892/etm.2021.10667
  • Article Number: 1233
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Abstract

The hydrogen sulfide (H2S)/cystathionine γ‑lyase (CSE) signaling pathway is involved in several inflammatory conditions, where tumor necrosis factor‑α (TNFα) is one of the inflammatory cytokines activated during sepsis. Therefore, the present study investigated the role of the NF‑κB transcription factor binding site in the transcriptional regulation of the CSE gene in 293T cells following treatment with TNFα using luciferase assays, as well as using western blotting and reverse transcription‑quantitative PCR to examine the effect of TNFα on CSE expression in HUVECs. After transfected 293T cells were incubated with various concentrations of TNFα for 1, 3, and 6 h, the wild‑type promoter of the CSE gene increased significantly at 1 h compared to 0 h. By contrast, after the transfected 293T cells were incubated with various concentrations of TNFα for 1 h, the mutant‑type promoter activity of the CSE gene decreased significantly compared to the wild‑type. These results revealed that the DNA sequence GGG​ACA​TTC​C on the CSE gene promoter was directly associated with the transcriptional regulation of the CSE gene in Human cells (293T cells) that's were treated with TNFα. This suggests that TNFα affects CSE gene expression, such that vascular endothelial cells respond to TNFα in the blood by regulating CSE expression. The regulatory mechanisms associated with the effects of TNFα on the transcriptional regulation of the CSE gene in HUVECs and the NF‑κB pathway warrant further investigation.
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November-2021
Volume 22 Issue 5

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Wang M: TNFα regulates the expression of the CSE gene in HUVEC. Exp Ther Med 22: 1233, 2021
APA
Wang, M. (2021). TNFα regulates the expression of the CSE gene in HUVEC. Experimental and Therapeutic Medicine, 22, 1233. https://doi.org/10.3892/etm.2021.10667
MLA
Wang, M."TNFα regulates the expression of the CSE gene in HUVEC". Experimental and Therapeutic Medicine 22.5 (2021): 1233.
Chicago
Wang, M."TNFα regulates the expression of the CSE gene in HUVEC". Experimental and Therapeutic Medicine 22, no. 5 (2021): 1233. https://doi.org/10.3892/etm.2021.10667