DO264
目录号 : GC45995An ABHD12 inhibitor
Cas No.:2301866-59-9
Sample solution is provided at 25 µL, 10mM.
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- Purity: >98.50%
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DO264 is an inhibitor of α/β-hydrolase domain-containing protein 12 (ABHD12; IC50 = 11 nM).1 It inhibits ABHD12-dependent hydrolysis of lysophosphatidylserine (lyso-PS) in mouse brain membrane lysates (IC50 = 2.8 nM) and human THP-1 cells.2 DO264 increases levels of chemokine (C-C motif) ligand 3 (CCL3), CCL4, TNF-α, and IL-1β in M1-polarized THP-1 macrophages.1 In vivo, DO264 (30 mg/kg per day for four weeks) increases levels of 1-stearoyl-2-hydroxy-sn-glycero-3-PS, 1-arachidonoyl-2-hydroxy-sn-glycero-3-PS, 1-docosanoyl-2-hydroxy-sn-glycero-3-PS, 1-stearoyl-2-arachidonoyl-sn-glycero-3-PS, and 1-oleoyl-2-arachidonoyl-sn-glycero-3-PS in mouse brain.2 It increases levels of CCL2, CCL3, and CCL5 in bronchoalveolar lavage fluid (BALF) and decreases survival in a mouse model of infection with lymphocytic choriomeningitis virus (LCMV) clone 13 when administered at a dose of 30 mg/kg.
|1. Ogasawara, D., Ichu, T.-A., Jing, H., et al. Discovery and optimization of selective and in vivo active inhibitors of the lysophosphatidylserine lipase α/β-hydrolase domain-containing 12 (ABHD12). J. Med. Chem. 62(3), 1643-1656 (2019).|2. Ogasawara, D., Ichu, T.-A., Vartabedian, V.F., et al. Selective blockade of the lyso-PS lipase ABHD12 stimulates immune responses in vivo. Nat. Chem. Biol. 14(12), 1099-1108 (2018).
Cas No. | 2301866-59-9 | SDF | |
Canonical SMILES | S=C(NC1CCN(C2=C(Cl)C(OC3=CC=C(OC(F)(F)F)C=C3Cl)=CC=N2)CC1)NC4=CC=CN=C4 | ||
分子式 | C23H20Cl2F3N5O2S | 分子量 | 558.4 |
溶解度 | Soluble in DMSO | 储存条件 | Store at -20°C |
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1 mg | 5 mg | 10 mg | |
1 mM | 1.7908 mL | 8.9542 mL | 17.9083 mL |
5 mM | 0.3582 mL | 1.7908 mL | 3.5817 mL |
10 mM | 0.1791 mL | 0.8954 mL | 1.7908 mL |
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Selective blockade of the lyso-PS lipase ABHD12 stimulates immune responses in vivo
Nat Chem Biol 2018 Dec;14(12):1099-1108.PMID:30420694DOI:10.1038/s41589-018-0155-8.
ABHD12 metabolizes bioactive lysophospholipids, including lysophosphatidylserine (lyso-PS). Deleterious mutations in human ABHD12 cause the neurological disease PHARC, and ABHD12-/- mice display PHARC-like phenotypes, including hearing loss, along with elevated brain lyso-PS and features of stimulated innate immune cell function. Here, we develop a selective and in vivo-active inhibitor of ABHD12 termed DO264 and show that this compound elevates lyso-PS in mouse brain and primary human macrophages. Unlike ABHD12-/- mice, adult mice treated with DO264 exhibited minimal perturbations in auditory function. On the other hand, both DO264-treated and ABHD12-/- mice displayed heightened immunological responses to lymphocytic choriomeningitis virus (LCMV) clone 13 infection that manifested as severe lung pathology with elevated proinflammatory chemokines. These results reveal similarities and differences in the phenotypic impact of pharmacological versus genetic blockade of ABHD12 and point to a key role for this enzyme in regulating immunostimulatory lipid pathways in vivo.
Blockade of the Lysophosphatidylserine Lipase ABHD12 Potentiates Ferroptosis in Cancer Cells
ACS Chem Biol 2020 Apr 17;15(4):871-877.PMID:32195565DOI:10.1021/acschembio.0c00086.
Ferroptosis is a type of cell death caused by the pathogenic accumulation of lipid hydroperoxides. Pharmacological mechanisms to induce ferroptosis may provide a way to kill cancer cells that are resistant to other forms of cell death like apoptosis. Nonetheless, the proteins that regulate ferroptotic sensitivity in cancer cells remain incompletely understood. Here, we screened a panel of inhibitors of serine hydrolases-an enzyme class important for regulating lipid metabolism-for potentiation of ferroptosis in HT1080 fibrosarcoma cells. We found that DO264, a selective inhibitor of the lyso- and ox-phosphatidylserine (PS) lipase ABHD12, enhances ferroptotic death caused by RSL3, an inhibitor of the lipid peroxidase GPX4. RSL3-induced ferroptosis was also potentiated by genetic disruption of ABHD12. Metabolomic experiments revealed that, in addition to elevated lyso-PS, ABHD12-inactivated cells show higher quantities of arachidonate (C20:4)-containing PS and 2-arachidonoyl glycerol, pointing to potential oxidation-sensitive lipid mediators of ferroptosis regulated by ABHD12.
Discovery and Optimization of Selective and in Vivo Active Inhibitors of the Lysophosphatidylserine Lipase α/β-Hydrolase Domain-Containing 12 (ABHD12)
J Med Chem 2019 Feb 14;62(3):1643-1656.PMID:30720278DOI:10.1021/acs.jmedchem.8b01958.
ABHD12 is a membrane-bound hydrolytic enzyme that acts on the lysophosphatidylserine (lyso-PS) and lysophosphatidylinositol (lyso-PI) classes of immunomodulatory lipids. Human and mouse genetic studies point to a key role for the ABHD12-(lyso)-PS/PI pathway in regulating (neuro)immunological functions in both the central nervous system and periphery. Selective inhibitors of ABHD12 would offer valuable pharmacological probes to complement genetic models of ABHD12-regulated (lyso)-PS/PI metabolism and signaling. Here, we provide a detailed description of the discovery and activity-based protein profiling (ABPP) guided optimization of reversible thiourea inhibitors of ABHD12 that culminated in the identification of DO264 as a potent, selective, and in vivo active ABHD12 inhibitor. We also show that DO264, but not a structurally related inactive control probe (S)-DO271, augments inflammatory cytokine production from human THP-1 macrophage cells. The in vitro and in vivo properties of DO264 designate this compound as a suitable chemical probe for studying the biological functions of ABHD12-(lyso)-PS/PI pathways.