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Labile plasma iron levels predict survival in patients with lower-risk Myelodysplastic syndromes

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  • Louise de Swart
  • Chloé Reiniers
  • Corine van Marrewijk
  • David Bowen
  • Eva Hellström-Lindberg
  • Aurelia Tatic
  • Argiris Symeonidis
  • Gerwin Huls
  • Jaroslav Cermak
  • Arjan A van de Loosdrecht
  • Hege Garelius
  • Dominic Culligan
  • Mac Macheta
  • Michail Spanoudakis
  • Panagiotis Panagiotidis
  • Marta Krejci
  • Nicole Blijlevens
  • Saskia Langemeijer
  • Jacqueline Droste
  • Dorine W Swinkels
  • Theo de Witte


Publication details

JournalHaematologica-The hematology journal
DateAccepted/In press - 27 Oct 2017
DateE-pub ahead of print (current) - 9 Nov 2017
Number of pages37
Pages (from-to)1-37
Early online date9/11/17
Original languageEnglish


Red blood cell transfusions remain one of the cornerstones in supportive care of lower-risk patients with myelodysplastic syndromes. We hypothesized that patients develop oxidant mediated tissue injury through the formation of toxic iron species, caused either by red blood cell transfusions or by ineffective erythropoiesis. We analyzed serum samples from 100 lower-risk patients with myelodysplastic syndromes at six-month intervals for transferrin saturation, hepcidin-25, growth differentiation factor 15, soluble transferrin receptor, non-transferrin bound iron and labile plasma iron in order to evaluate temporal changes in iron metabolism and presence of potentially toxic iron species and their impact on survival. Hepcidin levels were low in 34 patients with ringed sideroblasts compared to 66 patients without. Increases of hepcidin and non-transferrin bound iron levels were visible early in follow-up of all transfusion dependent patient groups. Hepcidin levels significantly decreased over time in transfusion independent patients with ringed sideroblasts. Increased soluble transferrin receptor levels in transfusion-independent patients with ringed sideroblasts confirmed the presence of ineffective erythropoiesis and suppression of hepcidin production in these patients. Detectable labile plasma iron levels in combination with high transferrin saturation levels occurred almost exclusively in patients with ringed sideroblasts and all transfusion dependent patient groups. Detectable labile plasma iron levels in transfusion dependent patients without ringed sideroblasts were associated with decreased survival.

IN CONCLUSION: toxic iron species occurred in all transfusion dependent patients and in transfusion independent patients with ringed sideroblasts. Labile plasma iron appeared to be a clinically relevant measure for potential iron toxicity and a prognostic factor for survival in transfusion dependent patients. This trial was registered at as #NCT00600860.

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Copyright © 2017 by the Ferrata Storti Foundation.This is an author-produced version of a paper accepted for publication. Uploaded with permission of the publisher/copyright holder. Further copying may not be permitted; contact the publisher for details.

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