The invention relates to the technical field of
regenerative medicine and
cell therapy, in particular to a method for inducing mesenchymal stem cells to differentiate into
insulin-secreting cells and application of the method. According to the method, a culture
system is regulated and controlled by stages, the glucose concentration is respectively regulated in different induction stages, an NAD +
precursor substance, a
fatty acid composition and an
antioxidant factor are added, and a three-dimensional
microcarrier culture mode is combined, so that the
cell metabolism state, the oxidation-reduction balance and the space structure are dynamically regulated and controlled. Under the condition of not depending on recombinant
protein inducing factors such as
Activin A and Wnt3a, the efficient directional differentiation of the mesenchymal stem cells to the
insulin-secreting cells is realized. By adopting the method disclosed by the invention, the differentiation efficiency can be improved, the
induction period can be shortened, the mature beta-like cells with a stable
glucose stimulation dependent
insulin secretion function can be obtained, and the method is suitable for induced differentiation and related research application of the human adipose-derived mesenchymal stem cells.