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Romidepsin (FK228, Depsipeptide, FR 901228, NSC 630176) is a structurally unique, potent HDAC1 and HDAC2 inhibitor with IC50 of 36 nM and 47 nM, respectively. Romidepsin inhibits the growth of U-937, K562, and CCRF-CEM cells with IC50 of 5.92 nM, 8.36 nM, and 6.95 nM, respectively. Romidepsin exhibits concentration-dependent cytotoxicity against a panel of mantle cell lymphoma (MCL) cell lines. FK228 (Romidepsin) treatment potently inhibits the neovascularization of chick embryo and that of adult mice in the Matrigel plug assay. FK228(Romidepsin) is currently in a Phase I study in treating patients with lymphoma, chronic lymphocytic leukemia, or solid tumors with liver dysfunction.<span style='color:#ff0000;'><strong>*The compound is unstable in solutions, freshly prepared is recommended</strong></span>
Nat Commun. 2019 Dec 20;10(1):5799.
Novel approach reveals genomic landscapes of single-strand DNA breaks with nucleotide resolution in human cells.
Romidepsin (FK228) purchased from AbMole
| Molecular Weight | 540.7 |
| Formula | C24H36N4O6S2 |
| CAS Number | 128517-07-7 |
| Solubility (25°C) | DMSO 10 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
| Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
| Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
| Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
| Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
| Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
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