论文部分内容阅读
以人肝庙细胞株GHC-3细胞为抗原,免疫制备获得抗人肝癌细胞膜单克隆抗体HLM_3(HLM_3-McAb).应用HLM_3-McAb研究分析肝瘤细胞表面抗原性质及其对GHC-3细胞的生物效应,结果表明:HLM_3-McAb可抑制已铺展的GHC-3细胞生长;辣根过氧化物酶结合法探测受McAb作用的细胞ConA受体和ras瘤基因产物p21.反应均明显减弱;交叉-阻断测试抗原及ConA受体发现,无论是细胞先与McAb结合后再与ConA反应,抑或先与ConA反应后再与McAb结合,都显示GHC-3细胞的膜抗原与腹表面的ConA受体有密切关系。进一步作糖化学分析,从高效薄层色谱(HPTLC)区带和扫描初步显示为不完全分化的中性糖脂。
The anti-human hepatoma cell membrane monoclonal antibody HLM_3 (HLM_3-McAb) was prepared by immunizing with human liver cell line GHC-3 cells as antigen. HLM_3-McAb was used to study the characteristics of hepatoma cell surface antigens and its biological effects on GHC-3 cells. The results showed that: HLM_3-McAb can inhibit the growth of spread GHC-3 cells; detection of horseradish peroxidase binding method McAb-activated cell ConA receptor and ras tumor gene product p21. The response was significantly attenuated; cross-blocking of test antigens and ConA receptors revealed that both cells first bind to McAb and then react with ConA, or they react with ConA and then bind to McAb. Both show membrane antigens of GHC-3 cells. It is closely related to the ConA receptor on the ventral surface. Further glycochemical analysis was initially performed as shown by HPTLC zones and scans as incompletely differentiated neutral glycolipids.