The invention relates to the technical field of
biomedical engineering, in particular to a preparation method and application of a
tissue engineering material for promoting directional differentiation of mesenchymal stem cells. The preparation method provided by the invention comprises the following steps:
transplanting the mesenchymal stem cells to a
PLGA (poly(lactic-co-
glycolic acid))
stent, by controlling the time, concentration and mode of planting the mesenchymal stem cells as well as the size, the shape and the like of a
stent material, searching out optimum conditions for the directional differentiation of the mesenchymal stem cells, and observing
biocompatibility of the mesenchymal stem cells and the
PLGA stent, change in
cellular morphology during inducing, influence of a pancreatic
beta cell inducing liquid on
cell proliferation as well as acquisition of specific genes, proteins and functions inducing
cell differentiation. According to the preparation method disclosed by the invention, the mesenchymal stem cells are planted on the
PLGA stent under the optimum conditions, and a pancreatic
beta cell, which has
high glucose reactivity and is applicable to therapy
transplantation, is obtained from culture and differentiation by virtue of the pancreatic
beta cell inducing liquid; therefore, the preparation method and application bring hope to the treatment of diabetes.