Synthesis of Carboxymethyl GLA-60 Ether Derivatives Containing an Olefin in Their Chains and Their LPS-Antagonistic Activities
作者:Tsuyoshi Nakamura、Yukiko Watanabe、Masao Shiozaki、Saori Kanai、Shin-ichi Kurakata
DOI:10.1246/bcsj.76.1011
日期:2003.5
Anomeric carboxymethyl GLA-60 olefine derivatives having ether chains instead of ester chains in their side chains were synthesized and their biological activities toward both human U937 cells and mouse PEC-macrophage cells were measured. The species-specific behavior of these compounds in humans (LPS-antagonistic) and mice (very weak LPS-antagonistic, but almost inactive) found this time was different from that in humans (LPS-antagonistic) and mice (endotoxic) found in the biosynthetic precursor of lipid A, such as lipid IVa. However, this fact also shows, interestingly enough, that a difference exists in the molecular recognition between human and mouse LPS receptors.
合成了具有醚链而非酯链的异构体羧甲基GLA-60烯烃衍生物,并测定了它们对人类U937细胞和小鼠PEC-巨噬细胞的生物活性。这些化合物在人体(LPS拮抗作用)和小鼠(LPS拮抗作用非常弱,但几乎没有活性)中的物种特异性行为与脂质A的生物合成前体脂质IVa中发现的人类(LPS拮抗作用)和小鼠(内毒性)的行为不同。然而,这一事实有趣地表明,人类和小鼠LPS受体之间存在分子识别的差异。