Inhibition of fatty acid synthase (FAS) by the irreversible inhibitor cerulenin leads to cytotoxicity and apoptosis in human cancer cell lines.1 TOFA is an inhibitor of fatty acid synthesis acting one step earlier in the metabolic pathway, blocking the synthesis of malonyl-CoA by acetyl-CoA carboxylase (ACC).2 Both cerulenin (at about 10 µg/ml) and TOFA (at about 1 µg/ml) are effective at blocking the incorporation of radiolabeled acetate into palmitate. However, TOFA reduces malonyl-CoA levels rather than elevating them, and TOFA is relatively non-toxic to various cancer cell lines. TOFA also attenuates the inhibition of feeding observed when FAS inhibitors such as cerulenin and C75 are administered to obese ob/ob mice.
1Moche, M., Schneider, G., Edwards, P., et al. Structure of the complex between the antibiotic cerulenin and its target, β-ketoacyl-acyl carrier protein synthase. J Biol Chem274(10)6031-6034(1999).
2Loftus, T.M., Jaworsky, D.E., Frehywot, G.L., et al. Reduced food intake and body weight in mice treated with fatty acid synthase inhibitors. Science2882379-2381(2000).
A crystalline solid
in continental US; may vary elsewhere
Cayman Chemical Company regularly evaluates our shipping methods to ensure product stability is maintained and our corporate environmental impact is minimized. Products selected for review are evaluated and shipping methods are certified by our Scientists. While occasionally our method of shipping a product may change, rest assured the shipping conditions on all Cayman Chemical products have been reviewed and validated.
Upon receipt, it is important to check the storage requirements of your products and place them at the appropriate temperature. Products shipped without ice may require frozen storage for long term stability.
Cayman Chemical was formed over thirty years ago by demonstrating the value of naturally growing gorgonian corals as a renewable, economically viable source of prostaglandins. Today we operate our business knowing that we owe our start to the renewable resources our environment had provided. As Cayman Chemical continues to grow we consistently evaluate our business processes to ensure we are operating at the highest environmental standards.
Manufacturer, supplier, and vendor of biochemical reagents, assay kits, forensic chemistry standards, antibodies, and proteins for scientific research
Analytical testing services and custom synthesis also available