Fig. 1

Characterization of AnSCs and preparation of AnSC-exos. A, B The cells isolated from the initial antler blastema were identified via flow cytometry and immunofluorescence staining. C Morphology of AnSC-exos via transmission electron microscopy. D Detection of exosomal markers in AnSC-exos via western blot. E Particle size of AnSC-Exos via NanoSight. AnSCs, antler stem cells; AnSC-exos, AnSC-derived exosomes