The present case study describes our experience in treating a young woman diagnosed with a relapsing case of diffuse large cell lymphoma, who was heavily pre-treated with chemotherapy and radiotherapy. Our only chance to improve her survival was by using high-dose chemotherapy, followed by peripheral stem cell rescue. Unfortunately, in this patient, collecting sufficient stem cells for bone marrow transplantation proved to be very difficult since she had already been heavily treated with chemotherapy and radiotherapy. Currently, granulocyte colony-stimulating factor (G-CSF) alone or G-CSF plus chemotherapy are the most commonly used treatments for stem cell mobilization. However, 5–30% of patients do not respond to these agents. Plerixafor is a new hematopoietic stem cell-mobilizing drug that antagonizes the binding of chemokine stromal cell-derived factor-1α to CXC chemokine receptor 4. It is indicated in combination with G-CSF to mobilize hematopoietic stem cells to the peripheral blood for collection and subsequent autologous transplantation in patients with non-Hodgkin’s lymphoma and multiple myeloma [Kessans et al.: Pharmacotherapy 2010;30:485–492; Jantunen: Expert Opin Biol Ther 2011;11:1241–1248]. Based on our findings, we consider plerixafor to be a very efficient and practical solution to mobilize and collect stem cells among all patients in such a situation, enabling us to proceed to autologous bone marrow transplantation and peripheral stem cell rescue in order to improve the patients’ overall survival.
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