This Opinion article highlights how activating mutations in the gene encoding oestrogen receptor-α (ERα), a major driver in breast cancer, undermine structural features of wild-type ERα that maintain the ‘off-state’ in the absence of oestrogens, thus making ERα constitutively active and endocrine-therapy resistant.
- John A. Katzenellenbogen
- Christopher G. Mayne
- Sarat Chandarlapaty