Methods: Fifteen human fetal prostate specimens at various developmental stages(10~39 weeks) were included in this study. SHH,PTC1,SMO and GLI1 were detected in all the specimens by immunohistochemical technique.

• 方法:应用免疫组织化学方法研究SHH、PTC1、SMO及GLI1在不同胎龄(10~39周)人胚胎前列腺组织中的表达变化情况。