Abstract | BACKGROUND: The main causes of lung cancer are smoking, environmental pollution and genetic susceptibility. It is an indisputable fact that PAHs are related to lung cancer, and benzo(a) pyrene is a representative of PAHs. The purpose of the current investigation was to investigate the interaction between AhR and HIF-1 signaling pathways in A549 cells, which provide some experimental basis for scientists to find drugs that block AhR and HIF-1 signaling pathway to prevent and treat cancer. METHODS: This project adopts the CYP1A1 signaling pathways and the expression of CYP1B1 is expressed as a measure of AhR strength index. The expression of VEGF and CAIX volume as a measure of the strength of the signal path HIF-1 indicators. Through the construction of plasmid vector, fluorescence resonance energy transfer, real-time quantitative PCR, western blotting and immunoprecipitation, the interaction between AhR signaling pathway and HIF-1 signaling pathway was observed. RESULTS: BaP can enhance the binding ability of HIF-1α protein to HIF-1β/ARNT in a dose-dependent manner without CoCl2. However, the binding ability of AhR protein to HIF-1β/ARNT is inhibited by HIF-1α signaling pathway in a dose-dependent manner with CoCl2. CONCLUSION: It is shown that activation of the AhR signaling pathway does not inhibit the HIF-1α signaling pathway, but activation of the HIF-1α signaling pathway inhibits the AhR signaling pathway.
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Authors | Mengdi Zhang, Yuxia Hu, Fan Yang, Jingwen Zhang, Jianxin Zhang, Wanjia Yu, Minjie Wang, Xiaoli Lv, Jun Li, Tuya Bai, Fuhou Chang |
Journal | BMC pharmacology & toxicology
(BMC Pharmacol Toxicol)
Vol. 23
Issue 1
Pg. 26
(04 26 2022)
ISSN: 2050-6511 [Electronic] England |
PMID | 35473600
(Publication Type: Journal Article)
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Copyright | © 2022. The Author(s). |
Chemical References |
- ARNT protein, human
- Receptors, Aryl Hydrocarbon
- Aryl Hydrocarbon Receptor Nuclear Translocator
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Topics |
- A549 Cells
- Aryl Hydrocarbon Receptor Nuclear Translocator
(genetics, metabolism)
- Humans
- Lung Neoplasms
(metabolism)
- Receptors, Aryl Hydrocarbon
(genetics, metabolism)
- Signal Transduction
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