The secret life of a cell-cycle gatekeeper of breast cancer

TL;DR - Researchers identified a previously unknown function of the cell-cycle regulator Rb that helps explain how blocking cell division can strengthen oestrogen-receptor signalling in breast cancer.

• Rb is a key gatekeeper controlling cell-cycle progression.
• Inhibiting cell division can enhance the oestrogen-receptor signalling that drives some breast cancers.
• The newly discovered role of Rb provides a mechanistic explanation for this counterintuitive effect.
• The provided summary does not specify the experimental methods or therapeutic implications.