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Published on: October 23, 2018
Sevoflurane and isoflurane decrease TNF-alpha-induced gene expression in human monocytic THP-1 cells: potential role
Kim A Boost1, Tobias Leipold, Patrick Scheiermann
1Klinik für Anästhesiologie der Ludwig-Maximilians-Universität München, Klinikum Grosshadern, D-81377 München, Germany. kim.boost@med.uni-muenchen.de
Volatile anesthetics like sevoflurane and isoflurane inhibit inflammatory responses by blocking the NF-kappaB pathway in human cells. This mechanism involves increased IkappaBalpha, reducing inflammatory cytokine release and NF-kappaB translocation.
Area of Science:
- Immunology
- Pharmacology
- Cell Biology
Background:
- The nuclear factor (NF)-kappaB/inhibitory (I)kappaBalpha pathway is crucial in inflammatory responses mediated by cytokines.
- Volatile anesthetics are known to modulate inflammatory cytokine production by interfering with intracellular signaling.
Purpose of the Study:
- To investigate the effects of sevoflurane and isoflurane on the NF-kappaB/IkappaBalpha pathway in human monocytic THP-1 cells.
- To examine the impact of these anesthetics on tumor necrosis factor-alpha (TNF-alpha)-induced interleukin-8 (IL-8) and heme oxygenase-1 (HO-1) production.
Main Methods:
- Human monocytic THP-1 cells were used as an in vitro model.
- Cells were exposed to sevoflurane or isoflurane (1 MAC) and stimulated with TNF-alpha.
- NF-kappaB translocation, IkappaBalpha degradation, IL-8, and HO-1 expression/release were analyzed.
Main Results:
- Both sevoflurane and isoflurane significantly attenuated TNF-alpha-induced IL-8 and HO-1 expression and release.
- Anesthetics markedly reduced NF-kappaB translocation and IkappaBalpha degradation.
- Sevoflurane notably upregulated IkappaBalpha content even under unstimulated conditions.
Conclusions:
- Sevoflurane and isoflurane inhibit TNF-alpha-induced inflammatory gene expression and cytokine release in human monocytic cells.
- This inhibition is associated with increased intracellular IkappaBalpha and decreased NF-kappaB translocation.
- These findings suggest a potential intracellular mechanism for the anti-inflammatory effects of sevoflurane.
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