ACY-241

- Overview
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    Background
    
    ACY-241 is a new, selective and orally available inhibitor of HDAC6 [1][2]. Histone deacetylase 6 (HDAC6) is an enzyme that removes acetyl groups from an ε-N-acetyl lysine on a histone, allowing the histones to wrap the DNA more tightly. HDAC6 plays an important role in transcriptional regulation and cell cycle progression. ACY-241 is a new, selective and orally available HDAC6 inhibitor. In MM and MCL cells, the addition of ACY-241 to either lenalidomide (len) or pomalidomide (pom) resulted in synergistic increases in apoptosis and further reduced the expression of transcription factors MYC and IRF4 [1]. In multiple solid tumor cell lines, combination treatment with ACY-241 and paclitaxel resulted in enhanced inhibition of cell proliferation and increased cell death, compared with either single agent alone [2]. In MM xenograft model, combination treatment with ACY-241 and pomalidomide was well tolerated with no overt toxicity and significantly extended survival [1]. In xenograft models of pancreatic and ovarian cancer, combination treatment with ACY-241 and paclitaxel significantly increased mitotic cells with multipolar spindles. ACY-241 dose-dependently increased α-tubulin hyperacetylation [2].
    
    [1]. Quayle SN, Almeciga-Pinto I, Tamang D, et al. Selective HDAC inhibition by ricolinostat (ACY-1215) or ACY-241 synergizes with IMiD® immunomodulatory drugs in Multiple Myeloma (MM) and Mantle Cell Lymphoma (MCL) cells. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research, 2015, Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 5380.
    [2]. Huang P, Almeciga-Pinto I, Jordan M, et al. Selective HDAC inhibition by ACY-241 enhances the activity of paclitaxel in solid tumor models. In: Proceedings of the 2015 AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics; 2015 Nov 5-9; Boston, Massachusetts. Philadelphia (PA): AACR
- Properties
  - Alternative Name
    
    (Z)-2-((2-chlorophenyl)(phenyl)amino)-N-((Z)-7-hydroxy-7-(hydroxyimino)heptyl)pyrimidine-5-carbimidic acid
    
    CAS Number
    
    1316215-12-9
    
    Molecular Formula
    
    C24H26ClN5O3
    
    Molecular Weight
    
    467.95
    
    Appearance
    
    A solid
    
    Purity
    
    98.72%
    
    Solubility
    
    ≥23.4 mg/mL in DMSO; insoluble in H2O; ≥4.87 mg/mL in EtOH with ultrasonic
    
    Storage
    
    Store at -20°C
    
    * For Research Use Only

ACY-241

Background

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