The invention relates to a method for improving
secretion and quality of
stem cell exosomes, and belongs to the technical field of
cell culture.The method specifically comprises the following steps that S1, stem cells are resuspended in a basic culture medium and subjected to
resuscitation treatment, and pretreated stem cells are obtained; s2, taking a basic culture medium, removing FBS of exosomes, and then adding
ergothioneine and beta-
nicotinamide mononucleotide according to the final concentration to obtain an improved culture medium; and S3, washing the pretreated stem cells, adding an improved culture medium, culturing, carrying out differential centrifugal
precipitation on the
exosome, and filtering and purifying through a filter membrane. According to the technical scheme, the
ergothioneine and the NMN serve as components of an improved culture medium at the same time, ROS is removed by the
ergothioneine, degradation of NAD < + > by the ergothioneine can be reduced, the NMN provides ATP support for the
antioxidant process of the ergothioneine, and the ergothioneine and the NMN cooperate to improve the
exosome secretion quality.