Objective To study the effects of Nocardia rubra cell wall skeleton(N-CWS) on wound healing of skin in mouse. Methods The mouse skin wound model was established. The mouse wound healing time and healing rate were recorded after the treatment with N-CWS. The change of wound histology was observed by the hematoxylineosin(HE) staining. The change of vascular endothelial growth factor(VEGF) and platelet-derived growth factor(PDGF) were detected by immunohistochemical staining respectively. Results N-CWS could o...