Long-term culture and identification of CD133⁺ hematopoietic progenitor cells from human umbilical cord blood.
- Author:
Xiao-Jin WU
1
;
Fang CHEN
;
Yan-Xia LU
;
Hui YANG
;
Fan-Li PENG
;
Li YUAN
;
Guo-Bing LIU
;
Xue-Nong LI
Author Information
- Publication Type:Journal Article
- MeSH: AC133 Antigen; Antigens, CD; metabolism; Cell Separation; methods; Cells, Cultured; Culture Media, Serum-Free; Culture Techniques; methods; Female; Fetal Blood; cytology; Glycoproteins; metabolism; Hematopoietic Stem Cells; cytology; Humans; Infant, Newborn; Male; Peptides; metabolism
- From: Journal of Southern Medical University 2012;32(3):349-353
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo isolate CD133(+) hematopoietic progenitor cells from human umbilical cord blood and optimize the culture condition for maintaining their stem cell characteristics.
METHODSCD133(+) hematopoietic progenitor cells were isolated from human umbilical cord blood using magnetic cell sorting system, and the cells were detected by flow cytometry. Four methods were used for culturing cells. After 8 weeks' culture, cytomorphology, flow cytometry, immunocytochemistry and immunofluorescence assay were used to identify the characteristics of the stem cells.
RESULTSOver 80% of CD133(+) hematopoietic progenitor cells were isolated from human umbilical cord blood using magnetic cell sorting system. The cells were effectively expanded using optimized serum-free medium after 8 weeks of cell culture, whereas the cells in other media differentiated into adherent cells in a poor state.
CONCLUSIONThe optimized serum-free medium allows effective expansion of CD133(+) hematopoietic progenitor cells that maintain stem cell characteristics after a long-term culture.
