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Characterization of endogenous cytokine concentrations after high-dose
chemotherapy with autologous bone marrow support
J Rabinowitz, WP Petros, AR Stuart and WP Peters
Department of Medicine, Duke University Medical Center, Durham, NC 27710.
Endogenous cytokines are thought to mediate numerous biologic processes and
may account for some adverse effects experienced following the
administration of recombinant proteins. This study describes the pattern of
endogenous cytokine exposure following high-dose chemotherapy. Blood
concentrations of interleukin-6 (IL-6), tumor necrosis factor-alpha
(TNF-alpha), macrophage colony-stimulating factor (M-CSF), and
erythropoietin (EPO) were measured by enzyme-linked immunosorbent assay
(ELISA) methods in 68 patients receiving the same ablative chemotherapy
regimen (cyclophosphamide, cisplatin, carmustine). Patients were grouped
according to cellular support (autologous bone marrow [BM] CSF-primed
peripheral blood progenitor cells [PBPCs]) and prescribed growth factor
(recombinant human granulocyte or granulocyte-macrophage colony-stimulating
factor [rHuG- CSF or rHuGM-CSF]). Leukocyte reconstitution was most
accelerated in the groups treated with PBPCs and rHuG-CSF. IL-6, M-CSF, and
TNF-alpha concentrations were higher in the groups treated with rHuGM-CSF
and without PBPCs. Maximal endogenous cytokine concentrations occurred
approximately 12 days after BM reinfusion. High concentrations of EPO
occurred in patients experiencing significant hypotension despite routine
transfusions for hematocrit < 42%. High M-CSF and IL-6 levels were
associated with increased platelet transfusion requirements. Concentrations
of all four cytokines were significantly higher in patients experiencing
renal or hepatic toxicity, with elevations occurring in a predictable
sequence and M-CSF elevations occurring first. This report shows that
endogenous cytokine concentrations may be influenced by either cellular or
CSF support and are associated with differences in platelet reconstitution
and organ toxicity.
Volume 81,
Issue 9,
pp. 2452-2459,
05/01/1993
Copyright © 1993 by The American Society of Hematology

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