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The in vitro and in vivo effects of stem cell factor on human hematopoiesis.
Stem Cells. 1993 Jul; 11 Suppl 2:76-82.SC

Abstract

The c-kit ligand or stem cell factor (SCF) and the c-kit ligand receptor (KR) are thought to play pivotal roles in the regulation of human hematopoiesis. When added to interleukin 3 (IL-3) and/or granulocyte-macrophage colony stimulating factor (GM-CSF), SCF has an especially profound effect on the in vitro proliferation of several classes of primitive hematopoietic progenitor cells including the burst forming unit megakaryocyte (BFU-MK), the high proliferative potential colony forming cell (HPP-CFC) and the long-term bone marrow culture-initiating cell (LTBMC-IC). These primitive hematopoietic progenitor cells are present in a CD34+HLA-DR- fraction of marrow which has in vivo marrow populating ability and thereby resembles the pluripotent hematopoietic stem cell. Furthermore, the CD34+HLA-DR- marrow subpopulation which expresses KR contains virtually all of the marrow BFU-MK, HPP-CFC and LTBMC-IC, indicating that the human stem cell is KR positive. The addition of SCF, IL-3 and GM-CSF to suspension cultures initiated with CD34+HLA-DR- cells results in an exponential expansion of the numbers of hematopoietic progenitor cells. Large numbers of such progenitor cells generated ex vivo may be useful as transfusion products for the treatment of chemotherapy induced cytopenias. The therapeutic potential of the in vivo administration of SCF has also been evaluated in a phase I trial of recombinant methionyl SCF. SCF administration led to an increase in both differentiated and primitive hematopoietic progenitor cells within the marrow. Such studies suggest that in vivo SCF administration may be useful for improving the quality of bone marrow grafts to be used either for autologous or allogeneic bone marrow transplantation.(

ABSTRACT

TRUNCATED AT 250 WORDS)

Authors+Show Affiliations

Hematology-Oncology Section, Indiana University School of Medicine, Indianapolis 46202-5121.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Clinical Trial, Phase I
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S.
Review

Language

eng

PubMed ID

7691331

Citation

Hoffman, R, et al. "The in Vitro and in Vivo Effects of Stem Cell Factor On Human Hematopoiesis." Stem Cells (Dayton, Ohio), vol. 11 Suppl 2, 1993, pp. 76-82.
Hoffman R, Tong J, Brandt J, et al. The in vitro and in vivo effects of stem cell factor on human hematopoiesis. Stem Cells. 1993;11 Suppl 2:76-82.
Hoffman, R., Tong, J., Brandt, J., Traycoff, C., Bruno, E., McGuire, B. W., Gordon, M. S., McNiece, I., & Srour, E. F. (1993). The in vitro and in vivo effects of stem cell factor on human hematopoiesis. Stem Cells (Dayton, Ohio), 11 Suppl 2, 76-82.
Hoffman R, et al. The in Vitro and in Vivo Effects of Stem Cell Factor On Human Hematopoiesis. Stem Cells. 1993;11 Suppl 2:76-82. PubMed PMID: 7691331.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The in vitro and in vivo effects of stem cell factor on human hematopoiesis. AU - Hoffman,R, AU - Tong,J, AU - Brandt,J, AU - Traycoff,C, AU - Bruno,E, AU - McGuire,B W, AU - Gordon,M S, AU - McNiece,I, AU - Srour,E F, PY - 1993/7/1/pubmed PY - 1993/7/1/medline PY - 1993/7/1/entrez SP - 76 EP - 82 JF - Stem cells (Dayton, Ohio) JO - Stem Cells VL - 11 Suppl 2 N2 - The c-kit ligand or stem cell factor (SCF) and the c-kit ligand receptor (KR) are thought to play pivotal roles in the regulation of human hematopoiesis. When added to interleukin 3 (IL-3) and/or granulocyte-macrophage colony stimulating factor (GM-CSF), SCF has an especially profound effect on the in vitro proliferation of several classes of primitive hematopoietic progenitor cells including the burst forming unit megakaryocyte (BFU-MK), the high proliferative potential colony forming cell (HPP-CFC) and the long-term bone marrow culture-initiating cell (LTBMC-IC). These primitive hematopoietic progenitor cells are present in a CD34+HLA-DR- fraction of marrow which has in vivo marrow populating ability and thereby resembles the pluripotent hematopoietic stem cell. Furthermore, the CD34+HLA-DR- marrow subpopulation which expresses KR contains virtually all of the marrow BFU-MK, HPP-CFC and LTBMC-IC, indicating that the human stem cell is KR positive. The addition of SCF, IL-3 and GM-CSF to suspension cultures initiated with CD34+HLA-DR- cells results in an exponential expansion of the numbers of hematopoietic progenitor cells. Large numbers of such progenitor cells generated ex vivo may be useful as transfusion products for the treatment of chemotherapy induced cytopenias. The therapeutic potential of the in vivo administration of SCF has also been evaluated in a phase I trial of recombinant methionyl SCF. SCF administration led to an increase in both differentiated and primitive hematopoietic progenitor cells within the marrow. Such studies suggest that in vivo SCF administration may be useful for improving the quality of bone marrow grafts to be used either for autologous or allogeneic bone marrow transplantation.(ABSTRACT TRUNCATED AT 250 WORDS) SN - 1066-5099 UR - https://www.unboundmedicine.com/medline/citation/7691331/The_in_vitro_and_in_vivo_effects_of_stem_cell_factor_on_human_hematopoiesis_ L2 - https://doi.org/10.1002/stem.5530110813 DB - PRIME DP - Unbound Medicine ER -