Menin in normal and malignant megakaryopoiesis.

Menin is essential for normal megakaryopoiesis and represents a therapeutic target in myeloproliferative neoplasms, with its inhibition causing severe thrombocytopenia.

• Why it matters: Understanding how menin influences platelet-producing cells is crucial because menin inhibitor therapy often leads to thrombocytopenia, a dangerous side effect. Clarifying this mechanism can improve treatment safety and effectiveness.
• What they did: Wen et al. investigated menin's role by analyzing its function in normal and malignant megakaryocyte development, highlighting its importance in these processes and potential as a therapeutic vulnerability.
• The result: The findings reveal that menin is vital for megakaryocyte formation, suggesting that targeting menin could treat myeloproliferative disorders but also necessitates managing thrombocytopenia risks.