- Design, Synthesis, and in vitro Evaluation of P2X7 Antagonists
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The P2X7 receptor is a promising target for the treatment of various diseases due to its significant role in inflammation and immune cell signaling. This work describes the design, synthesis, and in vitro evaluation of a series of novel derivatives bearing diverse scaffolds as potent P2X7 antagonists. Our approach was based on structural modifications of reported (adamantan-1-yl)methylbenzamides able to inhibit the receptor activation. The adamantane moieties and the amide bond were replaced, and the replacements were evaluated by a ligand-based pharmacophore model. The antagonistic potency of the synthesized analogues was assessed by two-electrode voltage clamp experiments, using Xenopus laevis oocytes that express the human P2X7 receptor. SAR studies suggested that the replacement of the adamantane ring by an aryl-cyclohexyl moiety afforded the most potent antagonists against the activation of the P2X7 cation channel, with analogue 2-chloro-N-[1-(3-(nitrooxymethyl)phenyl)cyclohexyl)methyl]benzamide (56) exhibiting the best potency with an IC50 value of 0.39 μΜ.
- Durner, Anna,Koufaki, Maria,Kritsi, Eftichia,Nicke, Annette,Papakostas, Alexios,T. Pournara, Dimitra,Zoumpoulakis, Panagiotis
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p. 2530 - 2543
(2020/10/19)
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- Design, synthesis and identification of novel colchicine-derived immunosuppressant
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Synthesis and biological evaluation of various colchicine analogues through the mixed-lymphocyte reaction (MLR), lymphoproliferation, and inhibitory effects on the inflammatory genes are described. In addition, a new series of immunosuppressive agents developed on the structural basis of colchicine, as well as their structure-activity relationships is reported. The most potent analogue 20a exhibited an excellent immunosuppressive activity on in vivo skin-allograft model, which is comparable to that of cyclosporin A.
- Chang, Dong-Jo,Yoon, Eun-Young,Lee, Geon-Bong,Kim, Soon-Ok,Kim, Wan-Joo,Kim, Young-Myeong,Jung, Jong-Wha,An, Hongchan,Suh, Young-Ger
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scheme or table
p. 4416 - 4420
(2010/04/05)
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