Biochem/physiol Actions
(S)-Crizotinib has a distinctly different profile from its (R)-enantiomer, the clinically approved anticancer agent Xalkori. Instead of targeting ALK, MET and ROS1, (S)-Crizotinib is a highly selective inhibitor of human 7,8-Dihydro-8-oxoguaninetriphosphatase MTH1 (NUDT1) with an IC50 value of 330 nM, 16-fold higher affinity towards MTH1 compared to the clinically used (R)-isomer. MTH1 hydrolyzes oxidized purine nucleoside triphosphates that might otherwise be incorporated into DNA/RNA and contribute to DNA damage. MTH1 removal of oxidized nucleotides that result from increased levels of reactive oxygen species (ROS) in fast-proliferating cancer cells helps protect cancer cells from proliferative stress and prevent cancer cell death. It is considered a new target for cancer therapy. In mouse xenograft studies using SW480 cells, (S)-crizotinib but not the (R)-enantiomer, was able to impair overall tumour progression as well as specifically reduce tumour volume by more than 50%.
Other Notes
This compound was developed by Pfizer for Kinase Phosphatase Biology research. To learn more about Sigma′s partnership with Pfizer and view other authentic, high-quality Pfizer compounds, visit sigma.com/bsm-pfizer.
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Legal Information
Sold for research purposes under agreement from Pfizer Inc.
Pfizer is a registered trademark of Pfizer, Inc.
- UPC:
- 51112705
- Condition:
- New
- Availability:
- 3-5 Days
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- MPN:
- PZ0240-5MG
- CAS:
- 1374356-45-2
