Comparison of CD34+ subsets and clonogenicity in human bone marrow, granulocyte colony-stimulating factor-mobilized peripheral blood, and cord blood
Journal of Korean Medical Science
;
: 520-525, 1999.
Article
in English
| WPRIM
| ID: wpr-187367
ABSTRACT
To compare the clonogenicity and distribution of CD34+ subsets in bone marrow (BM), granulocyte colony-stimulating factor (G-CSF) mobilized peripheral blood (PB) and cord blood (CB), we analyzed in vitro colony formation and CD34+ cells co-expressing differentiation molecules (CD38, HLA-DR), myeloid associated molecules (CD13, CD33), a T-cell associated molecule (CD3), and a B-cell associated molecule (CD19) from mononuclear cells (MNCs) in the three compartments. The proportions of CD34+CD38- cells (BM 4.4+/-2.8%, PB 5.3+/-2.1%, CB 5.9+/-3.9%) and CD34+HLA-DR cells (BM 4.7+/-3.4%, PB 5.5+/-2.3%, CB 6.1+/-3.7%) did not differ significantly among the compartments. In contrast, a significantly higher proportion of CD34 cells of PB and CB co-expressed CD13 (75.0+/-11.4%, 77.7+/-17.3%) and CD33 (67.1 +/-5.7%, 56.8+/-10.3%) compared with those of BM (43.0+/-6.3%, 27.6+/-5.1%) and a significantly higher number of granulocyte-macrophage colony-forming units (CFU-GM) and erythroid burst-forming units (BFU-E) were detected in MNCs derived from PB and CB compared with those from BM (p<0.01). The proportion of CD34+CD19+ cells was higher in BM (34.9+/-11.9%) than those in PB (5.6+/-3.0%) and CB (4.7=2.1%) (p<0.05). The proportion of CD34+CD3+ was comparable in all three compartments. In conclusion, our findings show that MNCs of mobilized PB and CB display similar phenotypic profiles of CD34+ subsets and clonogenicity, different from those of BM.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Phenotype
/
Reference Values
/
Bone Marrow
/
Hematopoietic Stem Cells
/
Comparative Study
/
Leukocytes, Mononuclear
/
HLA-DR Antigens
/
Granulocyte Colony-Stimulating Factor
/
Lymphocyte Subsets
/
Colony-Forming Units Assay
Limits:
Adult
/
Humans
/
Male
Language:
English
Journal:
Journal of Korean Medical Science
Year:
1999
Type:
Article
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