Abstract | BACKGROUND: METHODS: The hCMEC/D3 cells were treated with propofol, followed by TNF-α. The expression and phosphorylation of Hif-1α, VEGF, VEGFR-2, ERK, p38MAPK and occludin were measured by Western blot analysis. The cell viability of hCMEC/D3 cells was measured by cell counting kit-8. RESULTS: TNF-α (10 ng/ml, 4 h) significantly decreased the expression of occludin, which was attenuated by propofol (25 μM). TNF-α induced Hif-1α/ VEGF/VEGFR-2/ERK signaling pathway, while propofol could inhibit it. TNF-α induced the phosphorylation of p38MAPK, while propofol had no effect on it. In addition, the inhibitors of Hif-1α, VEGFR-2, and ERK could reduce the effect of TNF-α on occludin expression. CONCLUSION: TNF-α could decrease the expression of occludin via activating Hif-1α/ VEGF/ VEGFR-2/ ERK signaling pathway, which was attenuated by propofol.
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Authors | Yue Zhang, Xiaowei Ding, Changhong Miao, Jiawei Chen |
Journal | BMC anesthesiology
(BMC Anesthesiol)
Vol. 19
Issue 1
Pg. 127
(07 09 2019)
ISSN: 1471-2253 [Electronic] England |
PMID | 31288745
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Anesthetics, Intravenous
- HIF1A protein, human
- Hypoxia-Inducible Factor 1, alpha Subunit
- Occludin
- Tumor Necrosis Factor-alpha
- Vascular Endothelial Growth Factor A
- Vascular Endothelial Growth Factor Receptor-2
- Propofol
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Topics |
- Anesthetics, Intravenous
(pharmacology)
- Cell Line
- Cell Survival
(drug effects)
- Endothelial Cells
(metabolism)
- Humans
- Hypoxia-Inducible Factor 1, alpha Subunit
(drug effects)
- MAP Kinase Signaling System
(drug effects)
- Occludin
(metabolism)
- Phosphorylation
(drug effects)
- Propofol
(pharmacology)
- Signal Transduction
(drug effects)
- Tumor Necrosis Factor-alpha
(metabolism)
- Vascular Endothelial Growth Factor A
(drug effects)
- Vascular Endothelial Growth Factor Receptor-2
(drug effects)
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