Journal of Southern Medical University ›› 2005, Vol. 25 ›› Issue (06): 663-666.

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Killing effect of 131I-Herceptin on breast cancer cell lines in vitro

LIN Jing, LUO Rong-cheng, LI Ai-min, ZHANG Jun-yi, LU Cheng-wei, YAN Xiao   

  1. 南方医科大学南方医院肿瘤中心, 广东, 广州, 510515
  • Online:2005-06-20 Published:2005-06-20

Abstract: Objective To study the specific killing effect of 131I-labeled Herceptin on breast cancer cell lines positive for Her-2 expression. Methods Anti-Her-2 monoclonal antibody Herceptin was labeled with 131I by means of IODO-GEN, and the killing effects of Herceptin on SK-BR-3, MCF-7 and A549 cell lines expressing Her-2 were evaluated with MTT assay. Results 131I-Herceptin had immunoactivity had to that of Herceptin but possessed stronger killing effects on the cell lines expressing Her-2 than Herceptin and 131I used alone (P<0.05). Its killing effect on cell lines negative or only weakly positive for Her-2 expression was similar to that of 131I and Herceptin. Conclusion 131I-Herceptin can specifically kill Her-2-positive cancer cells in vitro.

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