| abstract |
PROBLEM TO BE SOLVED: To prepare a stem cell having a high engraftment rate at the time of transplanting stem cells and / or an agent for maintaining an undifferentiated state of stem cells while maintaining the undifferentiated state of mammalian stem cells. To provide. SOLUTION: A seed extract of peach seed is used for mammalian embryonic stem cells, or somatic stem cells in biological tissues including bone marrow, blood, fat, and skin tissues, and artificially prepared stem cells. The use promotes cell proliferation while maintaining the undifferentiated state of the stem cells, and further improves the survival rate of the stem cells to the living tissue at the time of transplantation of the stem cells, which is useful for tissue regeneration treatment. As described above, the present invention can greatly contribute to the field of tissue regeneration, and is expected to be applied to the fields of medicine, pharmaceuticals, quasi drugs, beauty, and health. [Selection figure] None |