N,N'-Dinitrosopiperazine (1,4-Dinitrosopiperazine; DNP) is identified as a carcinogen that specifically targets the nasopharyngeal epithelium and contributes to nasopharyngeal carcinoma (NPC) metastasis. It influences various signaling pathways through protein phosphorylation, including LYRIC at serine 568.
- Does not inhibit 6-10B cells at lower concentrations (0-8 μm)
- Exhibits cytotoxicity from 10 μm upwards
- Enhances 6-10B cell invasion and motility in a dose-dependent manner (2-8 μm)
- Increases cell invasion by 421.7% and motility by 328.2% at 6 μm
- Upregulates phospho-LYRIC s568 and LYRIC expression in CNE1 cells
- Inhibits cell motility and invasion in vivo at 40 mg/kg
- Facilitates NPC metastasis in vivo at 40 mg/kg
- Shows higher phospho-LYRIC expression in metastatic tumors in DNP-treated mice