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Phenotypic differences of CD34-positive stem cells harvested from peripheral blood and bone marrow obtained before and after peripheral blood stem cell collection. 1994

T Inaba, and C Shimazaki, and T Hirata, and E Ashihara, and K Okawa, and N Oku, and H Goto, and N Fujita, and H Tsuji, and M Nakagawa
Second Department of Medicine, Kyoto Prefectural University of Medicine, Japan.

Using two-color flow cytometry, we analyzed the subpopulations of CD34+ stem and progenitor cells in the blood and bone marrow from 10 patients with hematological malignancies. Peripheral blood mononuclear cells (PBMNC) harvested after chemotherapy (high-dose Ara C and VP-16) and rhG-CSF, and BM mononuclear cells, which were obtained before chemotherapy (BMMNCbefore) and after the stem cell collection (BMMNCafter) were isolated by Ficoll-Hypaque centrifugation. The purified cells were stained with FITC-conjugated anti-CD34 antibody and one of the following PE-conjugated antibodies: anti-CD7, CD10, CD11b, CD11c, CD13, CD19, CD33, CD38, CD45RO, CD56, and HLA-DR. CD34+ PBMNC harvested and the CD34+ BMMNCafter expressed CD13 and CD33 more frequently than CD34+ BMMNCbefore but expressed CD10 and CD19 less frequently than CD34+ BMMNCbefore. These data suggested that harvested PBMNC contain more myeloid lineage committed progenitors than BMMNCbefore, which might contribute to the rapid recovery of neutrophils after peripheral blood stem cell transplantation. No significant phenotypic differences of CD34+ cells between harvested PBMNC and BMMNCafter were observed except for the expression of CD11c. CD34+ PBMNC harvested coexpressed CD11c more frequently than both CD34+ BMMNCbefore and CD34+ BMMNCafter, which expression might be associated with commitment to the monocyte lineage.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010641 Phenotype The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment. Phenotypes
D001854 Bone Marrow Cells Cells contained in the bone marrow including fat cells (see ADIPOCYTES); STROMAL CELLS; MEGAKARYOCYTES; and the immediate precursors of most blood cells. Bone Marrow Cell,Cell, Bone Marrow,Cells, Bone Marrow,Marrow Cell, Bone,Marrow Cells, Bone
D002469 Cell Separation Techniques for separating distinct populations of cells. Cell Isolation,Cell Segregation,Isolation, Cell,Cell Isolations,Cell Segregations,Cell Separations,Isolations, Cell,Segregation, Cell,Segregations, Cell,Separation, Cell,Separations, Cell
D005260 Female Females
D006412 Hematopoietic Stem Cells Progenitor cells from which all blood cells derived. They are found primarily in the bone marrow and also in small numbers in the peripheral blood. Colony-Forming Units, Hematopoietic,Progenitor Cells, Hematopoietic,Stem Cells, Hematopoietic,Hematopoietic Progenitor Cells,Cell, Hematopoietic Progenitor,Cell, Hematopoietic Stem,Cells, Hematopoietic Progenitor,Cells, Hematopoietic Stem,Colony Forming Units, Hematopoietic,Colony-Forming Unit, Hematopoietic,Hematopoietic Colony-Forming Unit,Hematopoietic Colony-Forming Units,Hematopoietic Progenitor Cell,Hematopoietic Stem Cell,Progenitor Cell, Hematopoietic,Stem Cell, Hematopoietic,Unit, Hematopoietic Colony-Forming,Units, Hematopoietic Colony-Forming
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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