Greatwall kinase regulates acute myeloid leukaemia cell division through a non-canonical mechanism.

Greatwall kinase controls cytokinesis and cell cycle in AML cells via a novel pathway independent of ENSA-PP2A-B55, revealing a unique regulatory mechanism.

• Why it matters: Understanding how cell cycle regulation differs in leukemia can identify new therapeutic targets, especially since existing knowledge is mostly based on solid tumors and other systems.
• What they did: The study used pharmacological and genetic methods to show that AML cells depend on Greatwall activity for proliferation, with inactivation affecting cytokinesis and phosphorylation of cytoskeletal proteins like MARK3.
• The result: Findings demonstrate that Greatwall operates through a distinct signaling network in AML, enabling the development of targeted therapies that disrupt this leukemia-specific pathway.