A monoclonal antibody to the human HER3 receptor inhibits Neuregulin 1-beta binding and co-operates with Herceptin in inhibiting the growth of breast cancer derived cell lines

Blackburn, Edith and Zona, Stefania and Murphy, Mariana L. and Brown, Ian R. and Chan, Samuel K. W. and Gullick, William J. (2012) A monoclonal antibody to the human HER3 receptor inhibits Neuregulin 1-beta binding and co-operates with Herceptin in inhibiting the growth of breast cancer derived cell lines. Breast Cancer Research and Treatment, 134 (1). pp. 53-59. ISSN 0167-6806. (doi:https://doi.org/10.1007/s10549-011-1908-1) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://dx.doi.org/10.1007/s10549-011-1908-1

Abstract

The HER3 protein contributes to malignant transformation in breast and other cancer types as a consequence of elevated levels of expression, particularly in the presence of the HER2 protein. We show here that an antibody, called SGP1, to the extracellular domain of the HER3 receptor can inhibit completely Neuregulin stimulated growth of cultured breast cancer cells. Herceptin is a humanised monoclonal antibody to the HER2 protein which has an established role in the treatment of some patients with breast cancer. We demonstrate that Herceptin and SGP1 can bind simultaneously to breast cancer cells expressing both the HER2 and HER3 proteins. In the presence of moderate levels of Herceptin, addition of the SGP1 monoclonal antibody gave a dose-dependent inhibition of the growth of cells expressing both the high levels and moderate levels of HER2. The combination of Herceptin with SGP1 is effective in inhibiting breast cancer cell growth in cases where both HER2 and HER3 are expressed.

Item Type: Article
Uncontrolled keywords: Growth Factor Receptor Monoclonal antibody HER3 Neuregulin
Subjects: Q Science
Divisions: Faculties > Sciences > School of Biosciences
Faculties > Sciences > School of Biosciences > Biomedical Research Group
Depositing User: Bill Gullick
Date Deposited: 11 Jun 2013 13:00 UTC
Last Modified: 12 May 2014 10:15 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/34249 (The current URI for this page, for reference purposes)
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