(Human) HER2 Antibody - Trastuzumab IgA2 Isotype

Monoclonal human IgA2 antibody against HER2

Anti-HER2-Tra-hIgA2 features the constant region of the human IgA2 isotype and the variable region of trastuzumab. Trastuzumab is a humanized IgG1 monoclonal antibody that targets the HER2 receptor (human epidermal growth factor receptor 2 also known as HER2/neu) that is found on the cell membrane of epithelial cells.

HER2 plays an important role in normal cell growth and differentiation [1]. However, in certain types of cancers, particularly in breast and ovarian cancers, HER2 is over-expressed and causes uncontrollable cell proliferation. Binding of trastuzumab to HER2 results in cell death through different mechanisms including antibody-dependent cell-mediated cytotoxicity and phagocytosis [2, 3]. Trastuzumab has been approved by the FDA for the treatment of breast cancer.

Anti-HER2-Tra-hIgA2 was generated by recombinant DNA technology. It has been produced in Chinese hamster ovary (CHO) cells and purified by affinity chromatography with peptide M. 

References:

1. Rubin I. & Yarden Y. 2001. The basic biology of HER2. Ann Oncol.12 Suppl 1:S3-8.
2. Collins DM. et al., 2012. Trastuzumab induces antibody-dependent cell-mediated cytotoxicity (ADCC) in HER-2-non-amplified breast cancer cell lines. Ann Oncol. 23(7):1788-95.
3. Petricevic B. et al., 2013. Trastuzumab mediates antibody-dependent cell- mediated cytotoxicity and phagocytosis to the same extent in both adjuvant and metastatic HER2/neu breast cancer patients. J Transl Med. 11:307.