Dickkopf-related protein 2 (DKK2)

Dickkopf-related protein 2 (DKK2) is a secreted cysteine-rich glycoprotein that modulates the Wnt/β-catenin pathway, a critical regulator of cell fate, proliferation, and tissue differentiation during both embryogenesis and adult tissue maintenance[1][3][4]. DKK2 can interact with LRP6 and Kremen 2 to antagonize or promote Wnt signaling, resulting in diverse tissue-specific outcomes. In development, DKK2 represses canonical Wnt activity to specify cell fates in the eye and dental mesenchyme, regulates boundary formation in ocular vasculature, and modulates bone formation. In tumor biology, DKK2 displays dual roles—acting as a suppressor or promoter of proliferation and invasion, depending on cancer type and cellular context[1][2][4]. DKK2’s dynamic regulatory effects and context sensitivity make it a promising, yet complex, therapeutic target for developmental disorders, cancer, and regenerative medicine[1][2][4].

Other names

Dickkopf WNT signaling pathway inhibitor 2Dickkopf-2Dkk-2hDkk-2DKK-2dickkopf-related protein 2dickkopf 2 homologdickkopf homolog 2dickkopf-2UNQ682/PRO1316

Mechanisms for drugs or experimental interventions center on: Inhibition or silencing of DKK2 (e.g., RNA interference), leading to suppression of cell proliferation and invasion via inhibition of Wnt/β-catenin signaling; Recombinant protein modulation to alter Wnt pathway activity (antagonism or activation).