用本室建立的１株抗人骨肉瘤组织的杂交瘤细胞所分泌的单克隆抗体２Ｇ１０进行ＡＢＣ法染色，对骨肉瘤和２０种其它肿瘤组织，以及２０余种正常人体组织进行了免疫组织化学定位研究。发现除了对部分骨源性肿瘤，尤其骨肉瘤有阳性反应外，对其它肿瘤均显示阴性反应；与正常成人以及胎儿的相应组织无交叉反应。 ABC staining was performed on a monoclonal antibody 2G10 secreted by a hybridoma cell line that was established in this laboratory against human osteosarcoma tissue. Immunohistochemical localization was performed on osteosarcoma, 20 other tumor tissues, and more than 20 normal human tissues. the study. It was found that except for some bone-derived tumors, especially osteosarcoma, it showed a negative reaction to other tumors; there was no cross-reaction with normal adults and corresponding tissue of the fetus.