A Thioredoxin Reductase 1 Inhibitor Pyrano [3,2-a] Phenazine Inhibits A549 Cells Proliferation and Migration Through the Induction of Reactive Oxygen Species Production
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Background: Thioredoxin reductase 1 (TrxR1) inhibitor, pyrano [3,2-a] phenazine, named CPUL-1, was synthesized with potential anticancer activity. The aim of the present work was to explore the potential anti-proliferative and anti-metastatic ability of CPUL-1 against A549 cancer cell lines in vitro.
Methods And Results: First, Cell Counting Kit-8 (CCK8) assay was used to assess cell proliferation. The A549 cell migration was evaluated by wound healing assay and transwell assay. Second, the epithelial-mesenchymal transition (EMT)-related proteins in A549 cells treated with CPUL-1 were analyzed by western blot methods. Then, TrxR1 enzyme activity assay and reactive oxygen species (ROS) assay were conducted to evaluate the effect of CPUL-1 on TrxR1 inhibition and ROS levels. Finally, western blotting was used to explore the mechanism of CPUL-1. The study results revealed that the ability of cell proliferation and migration was decreased under CPUL-1 treatment. CPUL-1 could distinctly restrain the migration and invasion of A549 cells through inhibiting EMT process. The results of TrxR1 enzyme activity assay, ROS assay and western blotting showed that CPUL-1 influenced EMT via inducing ROS-mediated ERK/JNK signaling by inhibiting TrxR1 enzyme activity.
Conclusions: Together, proliferation suppression and anti-metastasis activity of CPUL-1 in A549 cells were demonstrated by all the evidence. Our findings highlight the great potential of phenazine compound CPUL-1 to suppress A549 cells proliferation and metastasis.
PSMD12 promotes non-small cell lung cancer progression through activating the Nrf2/TrxR1 pathway.
Lv J, Ma S, Wang X, Dang J, Ma F Genes Genomics. 2024; 46(3):263-277.
PMID: 38243044 DOI: 10.1007/s13258-023-01484-5.