HUANG En-yi,YANG Tian,CHEN Wei,YANG Li.Purification,cultivation and identification of rat follicle stem cells and biological characteristics[J].J Amry Med Univ (J Third Mil Med Univ),2008,30(01):39-42.
HUANG En-yi,YANG Tian,CHEN Wei,YANG Li.Purification,cultivation and identification of rat follicle stem cells and biological characteristics[J].J Amry Med Univ (J Third Mil Med Univ),2008,30(01):39-42.DOI:
Purification,cultivation and identification of rat follicle stem cells and biological characteristics
细胞。获得电镜观察毛囊干细胞表面形态学特征及内部结构特征资料。 结论 Vario MACS法能有效分离获得的CD34
+
毛囊干细胞,该细胞具有良好的生物学性能。
Abstract
Objective To enrich and culture rat CD34
+
follicle stem cells by immunomagnetic beads [Vario magnetic activated cell sorting (MACS)
]
and investigate their biological characteristics. Methods Follicles were digested into cell suspension after obtained by microdissection and digestion. CD34
+
cells and CD34
-
cells were isolated after cell suspension was incubated with CD34 antibody and magnetic microbeads in turn an
d then flowed though an MACS column. The isolated cells were cultured after viability evaluation. Cell growth curve was plotted. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were carried out to observe the morphology and internal structure of follicle stem cells. The isolated cells were cultured and then identified by detecting the expression of β
1
-integrin
CD34 and α6-integrin by immunohistochemical assays. Results CD34
+
follicle cells were isolated effectively by using Vario MACS
and cultured successfully with relative high viability. Cell growth curve showed that CD34
+
cells proliferated quickly and had a longer proliferative phase compared with CD34
-
cells. The expressions of β
1
-integrin
CD34 and α6-integrin in the cultured CD34
+
cells were stronger than in CD34
-
cells. SEM and TEM indicated that the CD34
+
follicle stem cells were round in shape and with large nuclei
clear nucleoli
and increased cytoplasm/nucleus ratio. Conclusion CD34
+
follicle stem cells with relative high viability can are obtained effectively by using immunomagnetic beads.