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Absolute values of dendritic cell subsets in bone marrow, cord blood, and peripheral blood enumerated by a novel method.

Publication ,  Journal Article
Szabolcs, P; Park, K-D; Reese, M; Marti, L; Broadwater, G; Kurtzberg, J
Published in: Stem Cells
2003

Dendritic cells (DCs) are pivotal in inducing immunity or alternatively downregulating immune reactivity. In humans, the opposing phenotypic subsets of CD11c(+)/CD123(-) "myeloid" DCs and CD123(+)/CD11c(-) "lymphoid" DCs have been proposed to orchestrate these immune responses. In this study we determined the absolute numbers of both subsets in three resting hematopoietic tissues by employing a novel flow cytometry method, eliminating processing steps and calculations based on mononuclear cell percentages. Internal bead standards along with the cells of interest were simultaneously acquired directly from unmanipulated whole blood specimens. We found significant differences (p < 0.001) between the mean absolute numbers of CD123(+)/CD11c(-) lymphoid DCs among the three sources, with the fewest present in peripheral blood (8.2/ micro l), about 50% more in cord blood (12.2/ micro l), and fivefold more in bone marrow (40.2/ micro l). Cord blood and bone marrow CD11c(+)/CD123(-) myeloid DC counts did not differ from each other (23.5/ micro l and 28.9/ micro l, respectively) but peripheral blood contained significantly fewer (15.5/ micro l, p = 0.006). CD11c(+)/CD123(-) DCs had significantly higher surface expression of HLA-DR (p < 0.001) in all three sources. To test for association with the DC subsets, T, B, and natural killer (NK) lymphocytes were also enumerated. In bone marrow only, significant correlations were found between the size of the CD123(+)/CD11c(-) lymphoid DC pool and NK cells (p = 0.0029) and B cells (p = 0.0033). These data support the hypothesis that a common CD123(+)/CD11c(-) DC, NK cell, and B cell progenitor is resident in marrow, and this cell may be identical to the common lymphoid progenitor previously described in mice and/or the human CD34(+)/Lin(-)/CD10(+) progenitor.

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Published In

Stem Cells

DOI

ISSN

1066-5099

Publication Date

2003

Volume

21

Issue

3

Start / End Page

296 / 303

Location

England

Related Subject Headings

  • Reference Values
  • Receptors, Interleukin-3
  • Phenotype
  • Lymphocytes
  • Interleukin-3 Receptor alpha Subunit
  • Immunology
  • Humans
  • Hematopoietic Stem Cells
  • HLA-DR Antigens
  • Flow Cytometry
 

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Szabolcs, P., Park, K.-D., Reese, M., Marti, L., Broadwater, G., & Kurtzberg, J. (2003). Absolute values of dendritic cell subsets in bone marrow, cord blood, and peripheral blood enumerated by a novel method. Stem Cells, 21(3), 296–303. https://doi.org/10.1634/stemcells.21-3-296
Szabolcs, Paul, Kyung-Duk Park, Melissa Reese, Luciana Marti, Gloria Broadwater, and Joanne Kurtzberg. “Absolute values of dendritic cell subsets in bone marrow, cord blood, and peripheral blood enumerated by a novel method.Stem Cells 21, no. 3 (2003): 296–303. https://doi.org/10.1634/stemcells.21-3-296.
Szabolcs P, Park K-D, Reese M, Marti L, Broadwater G, Kurtzberg J. Absolute values of dendritic cell subsets in bone marrow, cord blood, and peripheral blood enumerated by a novel method. Stem Cells. 2003;21(3):296–303.
Szabolcs, Paul, et al. “Absolute values of dendritic cell subsets in bone marrow, cord blood, and peripheral blood enumerated by a novel method.Stem Cells, vol. 21, no. 3, 2003, pp. 296–303. Pubmed, doi:10.1634/stemcells.21-3-296.
Szabolcs P, Park K-D, Reese M, Marti L, Broadwater G, Kurtzberg J. Absolute values of dendritic cell subsets in bone marrow, cord blood, and peripheral blood enumerated by a novel method. Stem Cells. 2003;21(3):296–303.

Published In

Stem Cells

DOI

ISSN

1066-5099

Publication Date

2003

Volume

21

Issue

3

Start / End Page

296 / 303

Location

England

Related Subject Headings

  • Reference Values
  • Receptors, Interleukin-3
  • Phenotype
  • Lymphocytes
  • Interleukin-3 Receptor alpha Subunit
  • Immunology
  • Humans
  • Hematopoietic Stem Cells
  • HLA-DR Antigens
  • Flow Cytometry