PROBLEM TO BE SOLVED: To provide a new therapeutic agent and treatment method for cancer.SOLUTION: There are provided a targeting agent for a cell selected from the group consisting of a cancer cell and a cancer-associated fibroblast, which includes retinoid, a substance delivery carrier for the cell, which includes the target agent, an anticancer composition and an anticancer-associated fibroblast composition including the targeting agent or the carrier and an agent to control activity or multiplication of the cancer cell and/or the cancer-associated fibroblast. Preferably, the agent to control activity or multiplication of the cancer cell is an anticancer agent.【課題】新たながんの治療剤および治療法の提供。【解決手段】レチノイドを含む、がん細胞および癌随伴線維芽細胞からなる群から選択される細胞への標的化剤。同標的化剤を含む前記細胞用の物質送達担体。同標的化剤または担体と、がん細胞および/または癌随伴線維芽細胞の活性または増殖を制御する薬物とを含む、抗がん組成物、および抗癌随伴線維芽細胞組成物。前記がん細胞の活性または増殖を制御する薬物は抗がん剤であることが好ましい。【選択図】なし
