PUBLICATION

Nitrovin (difurazone), an antibacterial growth promoter, induces ROS-mediated paraptosis-like cell death by targeting thioredoxin reductase 1 (TrxR1)

Authors
Zhao, L., Zhong, B., Zhu, Y., Zheng, H., Wang, X., Hou, Y., Lu Data Analysis, J.J., Ai, N., Guo, X., Ge, W., Ma, Y.Y., Chen, X.
ID
ZDB-PUB-230310-35
Date
2023
Source
Biochemical pharmacology   210: 115487 (Journal)
Registered Authors
Ai, Nana, Ge, Wei
Keywords
Glioblastoma, Nitrovin, Paraptosis, ROS, TrxR1
MeSH Terms
  • Animals
  • Apoptosis*
  • Cell Death
  • Cell Line, Tumor
  • Glutathione/metabolism
  • Humans
  • Nitrovin
  • Reactive Oxygen Species/metabolism
  • Thioredoxin Reductase 1*
  • Zebrafish
PubMed
36893814 Full text @ Biochem. Pharmacol.
Abstract
Glioblastoma multiforme (GBM) is one of the most lethal malignant tumors in the human brain, with only a few chemotherapeutic drugs available after surgery. Nitrovin (difurazone) is widely used as an antibacterial growth promoter in livestock. Here, we reported that nitrovin might be a potential anticancer lead. Nitrovin showed significant cytotoxicity to a panel of cancer cell lines. Nitrovin induced cytoplasmic vacuolation, reactive oxygen species (ROS) generation, MAPK activation, and Alix inhibition but had no effect on caspase-3 cleavage and activity, suggesting paraptosis activation. Nitrovin-induced cell death of GBM cells was significantly reversed by cycloheximide (CHX), N-acetyl-l-cysteine (NAC), glutathione (GSH), and thioredoxin reductase 1 (TrxR1) overexpression. Vitamins C and E, inhibitors of pan-caspase, MAPKs, and endoplasmic reticulum (ER) stress failed to do so. Nitrovin-triggered cytoplasmic vacuolation was reversed by CHX, NAC, GSH, and TrxR1 overexpression but not by Alix overexpression. Furthermore, nitrovin interacted with TrxR1 and significantly inhibited its activity. In addition, nitrovin showed a significant anticancer effect in a zebrafish xenograft model, which was reversed by NAC. In conclusion, our results showed that nitrovin induced non-apoptotic and paraptosis-like cell death mediated by ROS through targeting TrxR1. Nitrovin might be a promising anticancer lead for further development.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping