Immunostimulatory and Antitumor Activities of Monoglycosylceramides Having Various Sugar Moieties.
作者:Kazuhiro MOTOKI、Masahiro MORITA、Eiichi KOBAYASHI、Takeshi UCHIDA、Kohji AKIMOTO、Hideaki FUKUSHIMA、Yasuhiko KOEZUKA
DOI:10.1248/bpb.18.1487
日期:——
Ten kinds of monoglycosylceramides (MonoCers), having the same ceramide portion and different sugar moieties, were synthesized and their immunostimulatory and antitumor activities were examined. The manner of combination between sugar and ceramide has been demonstrated to affect the manifestation of immunostimulatory and resultant antitumor activities of MonoCers, and in the case of D-MonoCers having the D-sugar, α-D-MonoCers (sugar combined to ceramide in an α-configuration) show stronger activities than β-D-MonoCers. Furthermore, the form of sugar, not the furanose-form but the pyranose-form, and the 2''-and 4''-hydroxyl groups of the pyranose-form of sugar, seemed to play an important role in the manifestation of the activities of α-D-MonoCers.
合成了十种单糖基神经酰胺(MonoCers),它们具有相同的神经酰胺部分和不同的糖基部分,并研究了它们的免疫刺激和抗肿瘤活性。糖与神经酰胺的结合方式已被证明会影响MonoCers的免疫刺激及其相应的抗肿瘤活性的表现。对于含有D-糖的D-MonoCers,α-D-MonoCers(糖以α-构型与神经酰胺结合)显示出比β-D-MonoCers更强的活性。此外,糖的形式,不是呋喃糖形式而是吡喃糖形式,以及吡喃糖形式的糖的2''和4''-羟基,似乎在α-D-MonoCers的活性表现中起着重要作用。