Differentiating stem cells or precursor cells for tissue type, especially for use in therapy, involves treating the cells with extracts containing active ingredients for such differentiation and then culturing and differentiating

摘要

A method (M1) for the at least partial differentiation of stem cells and/or precursor cells for at least one tissue type, involves (a) treating the cells with extracts containing active ingredients for such differentiation and (b) culturing and differentiating the cells. Independent claims are also included for (1) a method (M2) for the production of extracts by a denaturation process applied to organic materials consisting of cell and/or tissue preparations containing active ingredients and/or components which activate or inhibit, preferably activate the growth and/or differentiation of stem cells and/or precursor cells for at least one tissue type (2) extracts obtained by M2 and containing active ingredients and/or components as above (not from bones) (3) a method (M3) for differentiating stem cells and/or precursor cells in which undifferentiated and/or incompletely differentiated cells are treated with extracts obtained from cells and/or tissues .