Tirapazamine has been used to evaluate its cytotoxic effect on U-251 MG (glioblastoma cell line) cell viability.[1]
Biochem/physiol Actions
Under hypoxic conditions, tirapazamine is a potent cytotoxic agent that induces apoptosis by inducing breaks in single and double stranded DNA, as well as chromosomal breaks. The compound sensitizes cells to other ionizing radiation and other cytotoxic agents like cisplatin.
Under hypoxic conditions, tirapazamine is a potent cytotoxic agent..
Chemical research in toxicology, 25(1), 197-206 (2011-11-17)
Heterocyclic N-oxides are an interesting class of antitumor agents that selectively kill the hypoxic cells found in solid tumors. The hypoxia-selective activity of the lead compound in this class, tirapazamine, stems from its ability to undergo intracellular one-electron reduction to
Anti-cancer drug design, 13(6), 529-539 (1998-10-02)
Tirapazamine (TPZ, SR 4233, WIN 59075, 3-amino-1,2,4-benzotriazine 1,4-dioxide, Tirazone) is the lead compound in the benzotriazine di-N-oxide class of bioreductive anticancer agents. Extensive preclinical testing has established that the mechanism for the selective toxicity towards hypoxic cells is the result
Clinical oncology (Royal College of Radiologists (Great Britain)), 31(8), 510-519 (2019-06-15)
There has been a surge in human papillomavirus (HPV)-positive oropharyngeal cancers (OPCs) in the West. Although the prognosis of HPV-positive OPC is good, de-escalation strategies have so far not been able to confirm comparable cancer control. We examine the strategies
Expert opinion on investigational drugs, 18(1), 77-87 (2008-12-05)
Tumor hypoxia remains one of the greatest challenges in the treatment of solid tumors, as cancer cells in these regions are resistant to killing by radiation therapy and most anticancer drugs. Tirapazamine (TPZ) is a newer class of cytotoxic drugs
Anti-cancer drug design, 13(6), 541-573 (1998-10-02)
The enzymology of triapazamine (TPZ, SR 4233, WIN 59075, 3-amino-1,2,4-benzotriazene 1,4-dioxide, Tirazone) has been extensively studied in rodents and to a lesser extent in human systems. While it is clear that the initial reductive step in TPZ activation is enzyme-mediated
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