rhG-CSF effect on mixed lymphocyte cultures and circulating soluble HLA antigen levels in volunteer stem cell donors
2004
Objective Recombinant human granulocyte colony-stimulating factor (rhG-CSF) is a cytokine widely used in the procurement of peripheral blood stem cells (PBSC) from donors for allogeneic hematopoietic cell transplantation. Therefore, we were interested in its immediate and long-term effects on cellular and soluble factors known to be involved in the immune response. Methods We studied 35 PBSC donors by mixed lymphocyte culture (MLC) and lymphocyte transformation test (LTT), and 41 for soluble plasma factors (soluble human leukocyte antigen [sHLA]-G, -class I, -DR, and interleukin [IL]-10) pre and 5 days post initial rhG-CSF administration, respectively. In addition, 10 donors were reexamined at an average of 2 months (3–16 weeks) post-rhG-CSF. Results At 5 days post-rhG-CSF the donors presented a significant ( p p p Conclusions rhG-CSF administration suppresses cellular immune functions within 5 days and increases sHLA and IL-10 plasma levels. These immunomodulatory effects appear to be short-term only and vanished at an average of 2 months after rhG-CSF application.
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