PROBLEM TO BE SOLVED: To provide a medical composition used for the treatment of multiple myeloma, and a method for inhibiting the proliferation of multiple myeloma cells.SOLUTION: The present invention provides a medical composition used for the treatment of multiple myeloma, containing an AMPD1 (adenosine monophosphate deaminase 1) inhibitor as an active ingredient； or a method for inhibiting the proliferation of multiple myeloma cells, which inhibit the proliferation of the multiple myeloma cells by treating the multiple myeloma cells with an AMPD1 inhibitor.SELECTED DRAWING: NoneCOPYRIGHT: (C)2020,JPO&INPIT【課題】本発明は、多発性骨髄腫の治療に用いられる医薬用組成物及び多発性骨髄腫細胞の増殖抑制方法を提供することを課題とする。【解決手段】ＡＭＰＤ１（adenosine monophosphate deaminase 1）阻害剤を有効成分とし、多発性骨髄腫の治療に用いられることを特徴とする、医薬用組成物、又は、多発性骨髄腫細胞をＡＭＰＤ１阻害剤で処理することにより、多発性骨髄腫細胞の増殖を抑制する、多発性骨髄腫細胞の増殖抑制方法。【選択図】なし
