TOP 10 and induced with IPTG. The expressed V H protein and normal mouse IgG(nmIgG) were labeled with 99m Tc by an improved pretining method and then injected into nude mice bearing human ovarian carcinoma by tail vein for RII.

• 重组子转化大肠杆菌TOP10 ；IPTG诱导表达VH 融合蛋白 ；经改进氯化亚锡法进行锝 ( 99mTc)的标记 ；在卵巢癌裸鼠皮下瘤模型上进行RII.