CD34 cells and T cell subsets in recombinant human granulocyte colony-stimulating factor primed bone marrow grafts from donors with different characteristics.
- Author:
Ying-Jun CHANG
1
;
Xiang-Yu ZHAO
;
Ming-Rui HUO
;
Xiao-Hua LUO
;
Xiao-Jun HUANG
Author Information
- Publication Type:Journal Article
- MeSH: Adolescent; Adult; Age Factors; Antigens, CD34; Bone Marrow Cells; immunology; Female; Granulocyte Colony-Stimulating Factor; therapeutic use; Hematopoietic Stem Cell Mobilization; Humans; Male; Middle Aged; Recombinant Proteins; T-Lymphocyte Subsets; immunology; Tissue Donors; Young Adult
- From: Chinese Journal of Hematology 2008;29(8):512-516
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo investigate the cell composition in granulocyte colony-stimulating factor One (rhG-CSF) primed bone marrow grafts (G-BM) from donors with different characteristics.
METHODShundred and fifty healthy donors were injected subcutaneously rhG-CSF (5 microg x kg(-1) x d(-1)) in five consecutive days. Bone marrow and peripheral blood stem cells were harvested at day 4 and day 5. The number of CD3, CD3+ CD4+, CD3+ CD8+, CD14+ , CD34+ and CD3+ CD4- CD8- cells were determined by multicolor flow cytometry. Cell composition of G-BM from donors with different characteristics, including sex, age, weight, pregnancy were analysed.
RESULTSThe absolute number of nuclear cells (NCs), lymphocytes, CD3+, CD3+ CD4+, CD3+ CD8+, CD14+, CD34+ and CD3+ CD4- CD8- cells in G-BM were 31 050 (12 200 -58 100), 2122 (506 - 6618), 1344 (307 - 4791), 692 (145 - 3038), 616 (112 - 2575), 986 (265 -2958), 63 (11 -505) and 83 (9 -390) per microliter, respectively. The number of NCs [33 800 (18 600 - 57 100)], CD34+ cells [76 (22 -505)], and CD3+ CD4+ CD8- regulatory T cells [97 (11 - 380)] harvested from younger donors (aged < or = 38 years) were significantly higher than those from older ones (aged > 38) [28000 (12200-58100), 49 (11-220), and 65 (9 - 389) per microliter (P = 0.027, < 0.001 and = 0.001, respectively)]. Compared with that in donors with peripheral blood monocytes (PBMs) < or = 0.37 x 10(9)/L, higher number of NCs in G-BM [27 150 (13 800 - 58 100) vs 33 550 (12 200 - 57 100), P = 0.005] were collected in donors with PBMs > 0.37 x 10(9)/L. Multivariate analysis showed that donors age (< or = 38 vs > 38 years; P = 0.01) and monocyte number in peripheral blood (< or = 0.37 x 10(9)/L vs > 0.37 x 10(9)/L; P = 0. 003) were factors predicting for NC yields, and donors age ( < or = 38 vs > 38 years; P < 0.001) was factor predicting for yields of CD34+ cells (P < 0.001) and CD3+ CD4- CD8- regulatory T cells (P = 0.001) collection.
CONCLUSIONDonor age is a factor for the yields of NCs, CD34+ cells, and CD3+ CD4- CD8- regulatory T cells collection in G-BM, and donor's PBMs more than 0.37 x 10(9)/L, is another factor affecting NCs harvests.
