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Tucidinostat (HBI-8000; Chidamide; CS-055) HCl is a benzamide type inhibitor of histone deacetylase (HDAC) isoenzymes 1, 2, 3 and 10 with IC50 values of 95, 160, 67, 78 nM for HDAC1, 2, 3, 10 respectively. Tucidinostat selectively binds to and inhibits HDAC leading to an increase of acetylation levels of histone protein H3. This agent also inhibits the expression of signaling kinases in the PI3K/Akt and MAPK/Ras signaling pathways and may result in cell cycle arrest and the induction of tumor cell apoptosis.
In vivo, Chidamide shows in vivo antitumor activity in HCT-8 colorectal carcinoma mice xenografts. Chidamide in the dose range of 12.5-50 mg/kg dose-dependently reduces tumor size and tumor weight, and the dose of 50 mg/kg produces similar or greater efficacy compared with the control drugs 5-fluorouracil(5-FU, 20 mg/kg) and MS-275 (25 mg/kg, which was reported as the maximum tolerated dose in xenograft models). However, chidamide is well-tolerated at the above doses in the tumor-bearing animals, whereas the control drugs cause significant weight loss.
| Molecular Weight | 463.33 |
| Formula | C22H21Cl2FN4O2 |
| CAS Number | 743420-02-2 |
| Solubility (25°C) | DMSO ≥ 60 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Related HDAC Products |
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Belinostat (PXD101) is a novel HDAC inhibitor with an IC50 of 27 nM. |
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| Givinostat hydrochloride monohydrate
ITF2357 (Givinostat, Gavinostat) is a histone deacetylase inhibitor. The IC50 values for maize HDAC preparations HD2, HD-1B and HD-1A are 10, 7.5 and 16 nM respectively. |
| Niltubacin
Niltubacin, as an inactive derivative of Tubacin, is a highly potent and selective, reversible cell-permeable inhibitor of HDAC6. |
| Tubacin
Tubacin (Tubulin Acetylation Inducer) is a highly potent and selective, reversible cell-permeable inhibitor of HDAC6 with IC50 of 0.004µM. |
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