Document Detail

Reduced in vivo lung metastasis of a breast cancer cell line after treatment with Herceptin mAb conjugated to chemotherapeutic drugs.
MedLine Citation:
PMID:  22797066     Owner:  NLM     Status:  Publisher    
Anthracyclines and taxanes have remarkable anticancer efficacy, but have poor selectivity and high toxicity. Targeted delivery of chemotherapeutics has emerged as a strategy to achieve higher drug levels at the tumor site, to spare noncancerous tissue and potentially to use lower systemic drug doses, thus preventing side effects. In this study, we targeted the HER2 receptor using the monoclonal antibody (mAb) Herceptin (Trastuzumab) chemically conjugated to Doxorubicin or Taxol. In vitro, drug-Herceptin conjugates exhibited cytotoxicity comparable to equimolar concentrations of free drugs, with the benefit that the cytotoxicity of the conjugates was selective for cells expressing the HER2 target. In vivo, treatment of tumor-bearing mice with Taxol-Herceptin conjugates had a reduction of primary tumors comparable to equivalent doses of free drugs. However, Taxol-Herceptin conjugates significantly reduced metastasis compared with equivalent doses of free drugs. Thus, the data support the concept that conjugates might target metastasis better than primary tumors. This would offer a potential therapeutic approach for management of metastatic breast cancer.Oncogene advance online publication, 16 July 2012; doi:10.1038/onc.2012.283.
A Galan Garcia; H Nedev; K Bijian; J Su; M A Alaoui-Jamali; H U Saragovi
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-16
Journal Detail:
Title:  Oncogene     Volume:  -     ISSN:  1476-5594     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8711562     Medline TA:  Oncogene     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Lady Davis Institute-Jewish General Hospital, Montreal, Quebec, Canada.
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