MDK

MDK is an acronym used to refer to more than one topic. One primary usage is in biology, where MDK stands for midkine, a small secreted heparin-binding growth factor encoded by the MDK gene.

Midkine functions in development, cell migration, and angiogenesis; it is highly expressed during embryonic development, particularly in the nervous system, and is present at lower levels in certain adult tissues. Dysregulated MDK expression has been observed in several cancers and inflammatory conditions; as a result, midkine is studied as a potential diagnostic biomarker and as a candidate for therapeutic targeting.

MDK also denotes a video game released in 1997 by Shiny Entertainment. The game is a science fiction action title known for its distinctive visuals and 3D action-platform gameplay. The acronym's meaning is not officially confirmed by the developers; popular interpretations in fan circles suggest "Murder Death Kill," but this is not stated as an official expansion.