Factors affecting PBSC mobilization and collection in healthy donors.
Peripheral blood stem cells are widely used as stem cell source for allografting. Progenitor cells can be effectively mobilized into peripheral blood in majority of healthy donors with a brief administration of G-CSF. A mobilization course in 111 donors (median age 40years) was retrospectively studied and the factors influencing the efficacy of mobilization were analyzed. The median number of CD34+ cells per kg recipient weight 5.1x10(6) was obtained after a median of two aphereses. The target cell dose (4.0x10(6)/kg) was reached in 69% of donors. Circulating CD34+ count and CD34+ yield were negatively associated with donor's age. Other independent factors associated with superior yield were precollection platelet and WBC counts. In multivariate analysis only CD34+ precount predicted for CD34+ yield. G-CSF had an acceptable short-term safety profile. Our data confirm that apheresis is a safe procedure in healthy including aged donors and suggest that older donors could be poorer mobilizers than younger.
Lysák
Daniel
D
Department of Hematology and Oncology, Charles University Hospital, Alej Svobody 80, Plzen 304 60, Czech Republic. lysak@fnplzen.cz
Koza
Vladimír
V
Jindra
Pavel
P
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D018952:Antigens, CD34; D005260:Female; D016179:Granulocyte Colony-Stimulating Factor / Q000008:administration & dosage; D019650:Hematopoietic Stem Cell Mobilization; D006412:Hematopoietic Stem Cells; D006801:Humans; D007937:Leukapheresis; D007958:Leukocyte Count; D008297:Male; D008875:Middle Aged; D036102:Peripheral Blood Stem Cell Transplantation; D014019:Tissue Donors
D018952:Antigens, CD34; D016179:Granulocyte Colony-Stimulating Factor