Abstract
Leukocyte functions (superoxide production and phagocytosis) were evaluated in patients with testicular cancer who had undergone super-high-dose chemotherapy (SHDT) with peripheral blood stem cell transplantation (PBSCT). In 5 patients with advanced or relapsed testicular cancer who received 8 cycles of SHDT with PBSCT, we measured superoxide production activity by phorbol myristate acetate (PMA) stimulation, as well as phagocytic activity using latex particles before and after PBSCT. The median time to reach a leukocyte count of > or = 1,000/microl was 9 days after PBSCT. Superoxide production activity was significantly decreased on day 7 compared with the pre-chemotherapy level. However, it recovered by day 12 and sustained such a level thereafter. Phagocytic activity was within the normal range on day 7 but declined slightly on days 12 and 21 compared with the pre-chemotherapy level. Our results indicate that leukocyte function and leukocyte count recover promptly following PBSCT and that PBSCT is a safe and convenient adjunctive therapy after SHDT for patients with advanced testicular cancer.
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