Does lapatinib work against HER2-negative breast cancers?

Mayer, Ingrid A; Arteaga, Carlos L · Clin Cancer Res · 2010

review · Level V

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Abstract

Aberrant growth factor receptor signaling can augment or suppress estrogen receptor (ER) function in hormone-dependent breast cancer cells and lead to escape from anti-estrogen therapy. Interruption of HER2/ER cross-talk with lapatinib can restore sensitivity to anti-estrogens and thus, should be investigated in combination with endocrine therapy in patients with ER+/HER2-negative breast cancers.

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