Peripheral blood stem cells: mobilization strategies and potential therapeutic applications

Hemlata Chhabra, Jaianand Kannaiyan, Palaniyandi M., Rajangam B., Suriya N. S., Anubhav Pandey


Peripheral blood stem cell (PBSC) transplantation is now a day’s preferred transplantation source of stem cells as treatment modality for various hematologic malignancies. Progenitor hematopoietic stem cells express CD34 antigen, through which PBSCs are selected and collected. Peripheral blood stem cells provide a rapid and effective hematopoietic recovery after administration in patients having hematological ailments, with the advantages of a shorter engraftment time and the lack of a need for surgical procedure necessary for bone marrow harvesting. PBSCs are routinely present in blood circulation; though number too low to be used for transplantation. PBSCs can be mobilized by the administration of G-CSF or GM-CSF alone or preceded by chemotherapy. The yield of stem cells after mobilization differ enormously with disease condition, age etc. and several studies have been performed with different mobilizing regimen and factors affecting yield of progenitor cells. Mobilized peripheral blood stem cells have been increasingly used clinically for many diseases including myeloma, leukemia, lymphoma etc. In the current review, we give brief introduction about peripheral blood stem cells, its advantages over bone marrow and emphasize on different mobilizing strategy used for mobilizing PBSCs and expansion of these PBSCs under in vitro environment. The potential clinical application of PBSCs in treating different diseases has also been reviewed here in detail.


Mobilization, PSBC, Stem cell transplant

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