PROBLEM TO BE SOLVED: To discover a new material that can efficiently proliferate a stem cell while maintaining the undifferentiated state of it, and provide the new material as an agent for maintaining the undifferentiated state of a stem cell and an agent for promoting the proliferation of a stem cell.SOLUTION: The present invention provides an agent for maintaining the undifferentiated state of a stem cell and an agent for promoting the proliferation of a stem cell, containing elastin peptide as an active ingredient.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】幹細胞を、未分化状態を維持させたまま、効率良く増殖させることができる新たな物質を見出し、幹細胞の未分化状態維持剤又は増殖促進剤として提供すること。【解決手段】エラスチンペプチドを有効成分として含有する、幹細胞の未分化状態維持剤又は増殖促進剤。【選択図】なし
