构建了成年绒山羊次级毛囊兴盛期皮肤组织cDNA文库.在GenBank数据库注册非冗余ESTs 392条.序列号为CD051766～CD052157.共有319个已知功能基因.未分类的基因108个;基因和蛋白质表达类70个;代谢类43个;细胞结构类45个;细胞信号和传导类30个;细胞和机体防御的基因15个;参与细胞分裂的基因8个.发现了一些可能和绒毛生长有关的基因:TGFβbinding protein,EDRK enriched factor,growth factor receptor, G protein associated receptor, dermal papilla derived protein 2, homeobox gene otx2, kallikrein7, jagged- 1, thrombospondin- 1 and p 53 inducible protein .
[Objective] The aim of this study is to lay a foundation for illustrating the biological characteristics and growth regulation mechanism of hair follicles.[Method]Cashmere goat primary hair follicles were separated under aseptic condition and cultured in serum-free DMEM and serum-free Williams E media respectively;subsequently,the growth rate and morphological changes were observed under the inverted microscope.[Result]Hair follicles cultured in serum-free DMEM media showed a growth rate of 0.034 mm/d during the first 3 days,whose structure and morphological characteristics could maintian a stable status for a long time in the growth process.Hair follicles grew much faster in the serum-free Williams E media with a growth rate of 0.077 mm/d during the first 3 days.[Conclusion]There were significant differences(P<0.05)between the growth of cashmere goat hair follicles cultured in the 2 kinds of media.Serum-free Williams E medium was superior to serum-free DMEM medium.
