LMD-009
目录号 : GC60998LMD-009是选择性CCR8非肽激动剂。LMD-009以高效力介导趋化性,肌醇磷酸盐积累和钙释放,EC50为11至87nM。
Cas No.:950195-51-4
Sample solution is provided at 25 µL, 10mM.
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LMD-009 is a selective CCR8 nonpeptide agonist. LMD-009 mediates chemotaxis, inositol phosphate accumulation, and calcium release in high potencies with EC50s from 11 to 87 nM[1].
[1]. Jensen PC, et al. Molecular interaction of a potent nonpeptide agonist with the chemokine receptor CCR8. Mol Pharmacol. 2007 Aug;72(2):327-40.
Cas No. | 950195-51-4 | SDF | |
Canonical SMILES | O=C1NCN(CCC2=CC=CC=C2)C13CCN(CC4=CC=CC(OC5=CC=CC=C5OC)=C4)CC3 | ||
分子式 | C29H33N3O3 | 分子量 | 471.59 |
溶解度 | DMSO: 250 mg/mL (530.12 mM) | 储存条件 | Store at -20°C |
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10 mM | 0.212 mL | 1.0602 mL | 2.1205 mL |
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Molecular interaction of a potent nonpeptide agonist with the chemokine receptor CCR8
Mol Pharmacol 2007 Aug;72(2):327-40.PMID:17652183DOI:10.1124/mol.106.035543.
Most nonpeptide antagonists for CC-chemokine receptors share a common pharmacophore with a centrally located, positively charged amine that interacts with the highly conserved glutamic acid (Glu) located in position 6 of transmembrane helix VII (VII:06). We present a novel CCR8 nonpeptide agonist, 8-[3-(2-methoxyphenoxy)benzyl]-1-phenethyl-1,3,8-triaza-spiro[4.5]decan-4-one (LMD-009), that also contains a centrally located, positively charged amine. LMD-009 selectively stimulated CCR8 among the 20 identified human chemokine receptors. It mediated chemotaxis, inositol phosphate accumulation, and calcium release with high potencies (EC50 from 11 to 87 nM) and with efficacies similar to that of the endogenous agonist CCL1, and it competed for 125I-CCL1 binding with an affinity of 66 nM. A series of 29 mutations targeting 25 amino acids broadly distributed in the minor and major ligand-binding pockets of CCR8 uncovered that the binding of LMD-009 and of four analogs [2-(1-(3-(2-methoxyphenoxy)benzyl)-4-hydroxypiperidin-4-yl)benzoic acid (LMD-584), N-ethyl-2-4-methoxybenzenesulfonamide (LMD-902), N-(1-(3-(2-methoxyphenoxy)benzyl)piperidin-4-yl)-2-phenyl-4-(pyrrolidin-1yl)butanamide (LMD-268), and N-(1-(3-(2-methoxyphenoxy)benzyl)piperidin-4-yl)-1,2,3,4-tetrahydro-2-oxoquinoline-4-carboxamide (LMD-174)] included several key-residues for nonpeptide antagonists targeting CCR1, -2, and -5. It is noteworthy that a decrease in potency of nearly 1000-fold was observed for all five compounds for the Ala substitution of the anchor-point GluVII:06 (Glu(286)) and a gain-of-function of 19-fold was observed for LMD-009 (but not the four other analogs) for the Ala substitution of PheVI:16 (Phe(254)). These structural hallmarks were particularly important in the generation of a model of the molecular mechanism of action for LMD-009. In conclusion, we present the first molecular mapping of the interaction of a nonpeptide agonist with a chemokine receptor and show that the binding pocket of LMD-009 and of analogs overlaps considerably with the binding pockets of CC-chemokine receptor nonpeptide antagonists in general.
In silico characterization of binding mode of CCR8 inhibitor: homology modeling, docking and membrane based MD simulation study
J Biomol Struct Dyn 2015;33(11):2491-510.PMID:25617117DOI:10.1080/07391102.2014.1002006.
Human CC-chemokine receptor 8 (CCR8) is a crucial drug target in asthma that belongs to G-protein-coupled receptor superfamily, which is characterized by seven transmembrane helices. To date, there is no X-ray crystal structure available for CCR8; this hampers active research on the target. Molecular basis of interaction mechanism of antagonist with CCR8 remains unclear. In order to provide binding site information and stable binding mode, we performed modeling, docking and molecular dynamics (MD) simulation of CCR8. Docking study of biaryl-ether-piperidine derivative (13C) was performed inside predefined CCR8 binding site to get the representative conformation of 13C. Further, MD simulations of receptor and complex (13C-CCR8) inside dipalmitoylphosphatidylcholine lipid bilayers were performed to explore the effect of lipids. Results analyses showed that the Gln91, Tyr94, Cys106, Val109, Tyr113, Cys183, Tyr184, Ser185, Lys195, Thr198, Asn199, Met202, Phe254, and Glu286 were conserved in both docking and MD simulations. This indicated possible role of these residues in CCR8 antagonism. However, experimental mutational studies on these identified residues could be effective to confirm their importance in CCR8 antagonism. Furthermore, calculated Coulombic interactions represented the crucial roles of Glu286, Lys195, and Tyr113 in CCR8 antagonism. Important residues identified in this study overlap with the previous non-peptide agonist (LMD-009) binding site. Though, the non-peptide agonist and currently studied inhibitor (13C) share common substructure, but they differ in their effects on CCR8. So, to get more insight into their agonist and antagonist effects, further side-by-side experimental studies on both agonist (LMD-009) and antagonist (13C) are suggested.