PROBLEM TO BE SOLVED: To provide an agent that allows γδT cells to efficiently migrate to a target tissue, and a medicine, such as a therapeutic agent for osteoclastic diseases, prepared therewith.SOLUTION: The present invention provides a γδT cell migration promoter comprising two or more chemokines selected from the group consisting of CCL3, CCL5, CCL7, CCL8 and CCL26 as an active ingredient, and a medicine, such as a therapeutic agent for osteoclastic diseases, comprising the γδT cell migration promoter.SELECTED DRAWING: Figure 3-3COPYRIGHT: (C)2018,JPO&INPIT【課題】γδT細胞を標的組織に効率よく遊走させることのできる薬剤を提供すること、およびそれを用いた骨破壊疾患治療薬などの医薬を提供すること。【解決手段】CCL3、CCL5、CCL7、CCL8およびCCL26からなる群より選択される2種類以上のケモカインを有効成分とするγδT細胞遊走促進剤および該γδT細胞遊走促進剤を含む骨破壊疾患治療薬などの医薬。【選択図】図3-3