Synergistic myelopoietic actions in vivo after administration to mice of combinations of purified natural murine colon-stimulating factor 1, recombinant murine interleukin 3, and recombinant murine granulocyte/macrophage colon-stimulating factor

Hal Broxmeyer, D. E. Williams, G. Hangoc, S. Cooper, S. Gillis, R. K. Shadduck, D. C. Bicknell

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Abstract

Combinations of low dosages of purified murine hematopoietic colony-stimulating factors (CSFs) - L-cell CSF type 1 (CSF-1), recombinant interleukin 3 (IL-3), and recombinant granulocyte/macrophage CSF (GM-CSF) - were compared with single CSFs for their influence on the cycling rates and numbers of bone marrow granulocyte/macrophage, erythroid, and multipotential progenitor cells in vivo in mice pretreated with human lactoferrin. Lactoferrin was used to enhance detection of the stimulating effects of exogenously administered CSFs. Concentrations of CSFs that were not active in vivo when given alone were active when administered together with other types of CSF. The concentrations of CSF-1, IL-3, and GM-CSF needed to increase progenitor cell cycling rates were reduced by factors of 40-200, 10-50, and 40- >400, respectively; the concentrations needed to increase progenitor cell numbers were reduced by factors of 40-500 (CSF-1), 20-80 (IL-3), and >40- >200 (GM-CSF) when these forms of CSFs were administered in combination with low dosages of one of the other forms of CSFs. The results demonstrate that different CSFs can synergize when administered in vivo to increase the cycling rates and numbers of marrow hematopoietic progenitor cells. These findings may be of relevance physiologically to the regulation of myeloid blood cell production by CSFs.

Original languageEnglish
Pages (from-to)3871-3875
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume84
Issue number11
DOIs
StatePublished - 1987

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Colony-Stimulating Factors
Interleukin-3
Granulocytes
Colon
Macrophages
Macrophage Colony-Stimulating Factor
Lactoferrin
Stem Cells
Bone Marrow
Erythroid Precursor Cells
Myeloid Cells
Granulocyte-Macrophage Colony-Stimulating Factor
Hematopoietic Stem Cells
Blood Cells
Cell Count

ASJC Scopus subject areas

  • Genetics
  • General

Cite this

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title = "Synergistic myelopoietic actions in vivo after administration to mice of combinations of purified natural murine colon-stimulating factor 1, recombinant murine interleukin 3, and recombinant murine granulocyte/macrophage colon-stimulating factor",
abstract = "Combinations of low dosages of purified murine hematopoietic colony-stimulating factors (CSFs) - L-cell CSF type 1 (CSF-1), recombinant interleukin 3 (IL-3), and recombinant granulocyte/macrophage CSF (GM-CSF) - were compared with single CSFs for their influence on the cycling rates and numbers of bone marrow granulocyte/macrophage, erythroid, and multipotential progenitor cells in vivo in mice pretreated with human lactoferrin. Lactoferrin was used to enhance detection of the stimulating effects of exogenously administered CSFs. Concentrations of CSFs that were not active in vivo when given alone were active when administered together with other types of CSF. The concentrations of CSF-1, IL-3, and GM-CSF needed to increase progenitor cell cycling rates were reduced by factors of 40-200, 10-50, and 40- >400, respectively; the concentrations needed to increase progenitor cell numbers were reduced by factors of 40-500 (CSF-1), 20-80 (IL-3), and >40- >200 (GM-CSF) when these forms of CSFs were administered in combination with low dosages of one of the other forms of CSFs. The results demonstrate that different CSFs can synergize when administered in vivo to increase the cycling rates and numbers of marrow hematopoietic progenitor cells. These findings may be of relevance physiologically to the regulation of myeloid blood cell production by CSFs.",
author = "Hal Broxmeyer and Williams, {D. E.} and G. Hangoc and S. Cooper and S. Gillis and Shadduck, {R. K.} and Bicknell, {D. C.}",
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T1 - Synergistic myelopoietic actions in vivo after administration to mice of combinations of purified natural murine colon-stimulating factor 1, recombinant murine interleukin 3, and recombinant murine granulocyte/macrophage colon-stimulating factor

AU - Broxmeyer, Hal

AU - Williams, D. E.

AU - Hangoc, G.

AU - Cooper, S.

AU - Gillis, S.

AU - Shadduck, R. K.

AU - Bicknell, D. C.

PY - 1987

Y1 - 1987

N2 - Combinations of low dosages of purified murine hematopoietic colony-stimulating factors (CSFs) - L-cell CSF type 1 (CSF-1), recombinant interleukin 3 (IL-3), and recombinant granulocyte/macrophage CSF (GM-CSF) - were compared with single CSFs for their influence on the cycling rates and numbers of bone marrow granulocyte/macrophage, erythroid, and multipotential progenitor cells in vivo in mice pretreated with human lactoferrin. Lactoferrin was used to enhance detection of the stimulating effects of exogenously administered CSFs. Concentrations of CSFs that were not active in vivo when given alone were active when administered together with other types of CSF. The concentrations of CSF-1, IL-3, and GM-CSF needed to increase progenitor cell cycling rates were reduced by factors of 40-200, 10-50, and 40- >400, respectively; the concentrations needed to increase progenitor cell numbers were reduced by factors of 40-500 (CSF-1), 20-80 (IL-3), and >40- >200 (GM-CSF) when these forms of CSFs were administered in combination with low dosages of one of the other forms of CSFs. The results demonstrate that different CSFs can synergize when administered in vivo to increase the cycling rates and numbers of marrow hematopoietic progenitor cells. These findings may be of relevance physiologically to the regulation of myeloid blood cell production by CSFs.

AB - Combinations of low dosages of purified murine hematopoietic colony-stimulating factors (CSFs) - L-cell CSF type 1 (CSF-1), recombinant interleukin 3 (IL-3), and recombinant granulocyte/macrophage CSF (GM-CSF) - were compared with single CSFs for their influence on the cycling rates and numbers of bone marrow granulocyte/macrophage, erythroid, and multipotential progenitor cells in vivo in mice pretreated with human lactoferrin. Lactoferrin was used to enhance detection of the stimulating effects of exogenously administered CSFs. Concentrations of CSFs that were not active in vivo when given alone were active when administered together with other types of CSF. The concentrations of CSF-1, IL-3, and GM-CSF needed to increase progenitor cell cycling rates were reduced by factors of 40-200, 10-50, and 40- >400, respectively; the concentrations needed to increase progenitor cell numbers were reduced by factors of 40-500 (CSF-1), 20-80 (IL-3), and >40- >200 (GM-CSF) when these forms of CSFs were administered in combination with low dosages of one of the other forms of CSFs. The results demonstrate that different CSFs can synergize when administered in vivo to increase the cycling rates and numbers of marrow hematopoietic progenitor cells. These findings may be of relevance physiologically to the regulation of myeloid blood cell production by CSFs.

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