Kaku M, Yagawa K, Nagao S, Tanaka A
Infect Immun. 1983 Feb;39(2):559-64. doi: 10.1128/iai.39.2.559-564.1983.
Muramyl dipeptide (MDP) and lipopolysaccharide (LPS) from Escherichia coli were tested for the ability to influence superoxide anion (O2-) release from guinea pig phagocytes. Both MDP and LPS alone did not, by themselves, stimulate O2- release by macrophages and polymorphonuclear leukocytes. However, the preincubation of macrophages with MDP or LPS primed the macrophages to release an enhanced amount of O2- when stimulated by cytochalasin E and wheat germ agglutinin. When polymorphonuclear leukocytes were treated in the same way, only LPS showed an enhancing effect. MDP enhanced NADPH oxidase activity of macrophages, which is probably the reason for enhanced O2- release by MDP.
对来自大肠杆菌的胞壁酰二肽(MDP)和脂多糖(LPS)影响豚鼠吞噬细胞释放超氧阴离子(O2-)的能力进行了测试。单独的MDP和LPS本身均不会刺激巨噬细胞和多形核白细胞释放O2-。然而,用MDP或LPS对巨噬细胞进行预孵育,可使巨噬细胞在受到细胞松弛素E和麦胚凝集素刺激时释放出更多的O2-。当以同样方式处理多形核白细胞时,只有LPS显示出增强作用。MDP增强了巨噬细胞的NADPH氧化酶活性,这可能是MDP导致O2-释放增加的原因。