The present application relates to a kind of engineered
stem cell nanometer apoptotic bodies, its preparation method includes the following steps: by 3,3'-
diindolylmethane directional induction obtains the engineered
stem cell rich in repair and anti-inflammatory
signal molecules, and then the engineered
stem cell is induced to
apoptosis, and the supernatant is separated and obtained by collection, then the programmed tandem
extrusion process is handled to the engineered
apoptotic body, and the particle size uniformity of the engineered nanometer
apoptotic body is prepared.The engineered nanometer
apoptotic body of the present application can effectively improve the microenvironment around
hair follicle and regulate
hair growth cycle, significantly improve the hair density and regeneration rate of androgenetic alopecia model mice, provide a new strategy of safe, convenient and efficient for clinical
hair regeneration treatment.