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Related Experiment Videos

Allogeneic peripheral blood stem cell transplantation.

W I Bensinger1, R Storb

  • 1Division of Clinical Research, Fred Hutchinson Cancer Research Center, Department of Medicine, University of Washington, Seattle, Washington, USA.

Reviews in Clinical and Experimental Hematology
|August 7, 2001
PubMed
Summary

Granulocyte colony stimulating factor (G-CSF)-mobilized peripheral blood stem cells (PBSC) offer faster engraftment and improved survival in allogeneic transplantation compared to bone marrow. PBSC transplantation shows a graft-vs.-leukemia effect, particularly in advanced hematologic malignancies.

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Area of Science:

  • Hematology
  • Transplantation Immunology

Background:

  • Granulocyte colony stimulating factor (G-CSF)-mobilized peripheral blood stem cells (PBSC) are increasingly used for autologous transplantation, showing faster hematopoietic recovery.
  • G-CSF's low toxicity has led to evaluations of PBSC in allogeneic transplantation, demonstrating quicker engraftment of neutrophils, red blood cells, and platelets compared to bone marrow.

Purpose of the Study:

  • To evaluate the efficacy and safety of G-CSF-mobilized PBSC versus bone marrow for allogeneic transplantation.
  • To compare engraftment times, graft-vs.-host disease (GVHD) risks, survival, and disease-free survival between PBSC and bone marrow allografts.

Main Methods:

  • Review of randomized studies comparing mobilized PBSC and bone marrow for allogeneic transplantation.
  • Analysis of data on engraftment, acute and chronic GVHD, transplant-related mortality, relapse rates, and survival outcomes.

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Main Results:

  • Randomized studies confirm significantly earlier engraftment with PBSC compared to bone marrow.
  • While acute GVHD risks are similar, some trials show a trend towards increased grade II-IV and chronic GVHD with PBSC.
  • Studies indicate improved survival and disease-free survival with PBSC, attributed to reduced transplant-related mortality, fewer relapses, enhanced immune reconstitution, and a graft-vs.-leukemia (GVL) effect.

Conclusions:

  • PBSC transplantation offers faster engraftment and potential survival benefits in allogeneic settings, especially for advanced hematologic malignancies.
  • The GVL effect of PBSC is a significant advantage, currently being utilized in non-ablative allografts.
  • Further research is needed to fully define PBSC benefits in less advanced disease stages.