Rapid and efficient method for expanding human mesenchymal stem cells in vitro and application thereof

Abstract

Disclosed is a rapid and efficient method for expanding a human mesenchymal stem cells in vitro. In the method, immune cells in human peripheral blood and human mesenchymal stem cells are co-cultured at a cell number ratio of 1:1 to 400:1, which can significantly enhance the expansion ability of human mesenchymal stem cells; the number of expansion in vitro is more than ten times that of commonly used methods, and the expanded cells still maintain the biological characteristics of stem cells while having stronger self-renewal ability and multidirectional differentiation potential. There is no statistical difference in the expansion-promoting effects of the human peripheral blood immune cells from people of different ages on the human mesenchymal stem cells, regardless of age. Subjects use immune cells in autologous peripheral blood to expand human mesenchymal stem cells, which can avoid the risk of immune rejection.

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