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| Names | |
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| Preferred IUPAC name (2E)-3-{2-Butyl-1--1H-1,3-benzimidazol-5-yl}-N-hydroxyprop-2-enamide | |
| Other names Pracinostat | |
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| Properties | |
| Chemical formula | C20H30N4O2 |
| Molar mass | 358.486 g·mol |
| Density | 1.1±0.1 g/cm |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references | |
Pracinostat (SB939) is an orally bioavailable, small-molecule histone deacetylase (HDAC) inhibitor based on hydroxamic acid with potential anti-tumor activity characterized by favorable physicochemical, pharmaceutical, and pharmacokinetic properties.
Activity
Pracinostat selectively inhibits HDAC class I, II, IV without class III and HDAC6 in class IIb, but has no effect on other Zn-binding enzymes, receptors, and ion channels. It accumulates in tumor cells and exerts a continuous inhibition to histone deacetylase, resulting in acetylated histones accumulation, chromatin remodeling, tumor suppressor genes transcription, and ultimately, apoptosis of tumor cells.
Clinical medication
Clinical studies suggests that pracinostat has potential best pharmacokinetic properties when compared to other oral HDAC inhibitors. In March 2014, pracinostat has granted Orphan Drug for acute myelocytic leukemia (AML) and for the treatment of T-cell lymphoma by the Food and Drug Administration.
References
- "In vitro enzyme activity of SB939 and SAHA". 22 Aug 2014.
- Novotny-Diermayr, V.; Hart, S.; Goh, K. C.; Cheong, A.; Ong, L-C; Hentze, H.; Pasha, M. K.; Jayaraman, R.; Ethirajulu, K.; Wood, J. M. (2012). "The oral HDAC inhibitor pracinostat (SB939) is efficacious and synergistic with the JAK2 inhibitor pacritinib (SB1518) in preclinical models of AML". Blood Cancer Journal. 2 (5): e69–. doi:10.1038/bcj.2012.14. PMC 3366067. PMID 22829971.
- Veronica Novotny-Diermayr; et al. (March 9, 2010). "SB939, a Novel Potent and Orally Active Histone Deacetylase Inhibitor with High Tumor Exposure and Efficacy in Mouse Models of Colorectal Cancer". Mol Cancer Ther. 9 (3): 642–652. doi:10.1158/1535-7163.MCT-09-0689. PMID 20197387.