DO-264
目录号 : GC34327An ABHD12 inhibitor
Cas No.:2301866-59-9
Sample solution is provided at 25 µL, 10mM.
Quality Control & SDS
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- Purity: >98.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
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. It potentiates ferroptotic cell death induced by the glutathione peroxidase 4 (GPX4) inhibitor RSL3 in HT1080 fibrosarcoma and SU-DHL-5 B cell lymphoma cells when used at a concentration of 1 μM.1,3 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 vivoNat. Chem. Biol.14(12)1099-1108(2018) 3.Kathman, S.G., Boshart, J., Jing, H., et al.Blockade of the lysophosphatidylserine lipase ABHD12 potentiates ferroptosis in cancer cellsACS Chem. Biol.15(4)871-877(2020)
Cas No. | 2301866-59-9 | SDF | |
Canonical SMILES | S=C(NC1=CC=CN=C1)NC2CCN(C3=NC=CC(OC4=CC=C(OC(F)(F)F)C=C4Cl)=C3Cl)CC2 | ||
分子式 | C23H20Cl2F3N5O2S | 分子量 | 558.4 |
溶解度 | DMSO : ≥ 100 mg/mL (179.08 mM);Water : < 0.1 mg/mL (insoluble) | 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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% DMSO % % Tween 80 % saline | ||||||||||
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1. 首先保证母液是澄清的;
2.
一定要按照顺序依次将溶剂加入,进行下一步操作之前必须保证上一步操作得到的是澄清的溶液,可采用涡旋、超声或水浴加热等物理方法助溶。
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Increase in Cellular Lysophosphatidylserine Content Exacerbates Inflammatory Responses in LPS-Activated Microglia
Neurochem Res 2022 Sep;47(9):2602-2616.PMID:34383250DOI:10.1007/s11064-021-03425-8
Mutations in alpha/beta-hydrolase domain containing (ABHD) 12 gene, which encodes lysophosphatidylserine (LysoPS) lipase, cause the neurodegenerative disease PHARC (Polyneuropathy, Hearing loss, Ataxia, Retinitis pigmentosa, Cataract). Since ABHD12 is expressed by microglia in the central nervous system and is localized to the endoplasmic reticulum, accumulation of intracellular LysoPS by ABHD12 mutations is assumed to be one of the pathological mechanisms associated with microglial activation in PHARC. However, the role of microglia in the PHARC brain and the relationship between microglial function and cellular LysoPS content remains unclear. Therefore, we explored the influence of cellular LysoPS content in microglial inflammatory responses. We evaluated the effects of inhibitors of cellular LysoPS metabolism, KC01 and DO-264, on inflammatory responses using a lipopolysaccharide (LPS)-stimulated mouse microglial cell line, BV-2 and primary microglia. Treatment of DO-264, an inhibitor of cellular LysoPS degradation, enhanced LPS-induced phagocytosis concomitant with the increase in cellular LysoPS content in BV-2 cells. On the other hand, treatment with KC01, an agent had been developed as an inhibitor of LysoPS synthase, reduced phagocytosis without affecting cellular LysoPS content. Such effects of both inhibitors on phagocytosis were also confirmed using primary microglia. KC01 treatment decreased nitric oxide (NO) production, accompanied by a reduction in inducible NO synthase expression in BV-2 microglia. KC01 also suppressed LPS-induced generation of intracellular reactive oxygen species and cytokines such as interleukin-6. Our results suggest that increase in cellular LysoPS levels can exacerbate microglial inflammatory responses. Treatment to prevent the increase in cellular LysoPS in microglia may have therapeutic potential for PHARC.