PROBLEM TO BE SOLVED: To provide a member for use in tissue regeneration having a desired tissue regeneration ability and mechanical strength.SOLUTION: This member for use in tissue regeneration includes a biodegradable resin film which contains cytokines and calcium phosphate, and has a gradient structure in which the ratio of the cytokines to the calcium phosphate continuously increases or decreases in the thickness direction.COPYRIGHT: (C)2013,JPO&INPIT【課題】所望の組織再生能と力学的強度を有する組織再生部材を提供すること。【解決手段】サイトカインとリン酸カルシウムとを含有する生分解性樹脂膜を含む組織再生用部材であって、前記サイトカインと前記リン酸カルシウムとの比率が厚み方向で連続的に増加又は減少する傾斜構造を有する、組織再生用部材。【選択図】 図1