J 2018

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

SWART, L. de, C. REINIERS, T. BAGGULEY, T. van MARREWIJK, D. BOWEN et. al.

Basic information

Original name

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

Authors

SWART, L. de (528 Netherlands), C. REINIERS (528 Netherlands), T. BAGGULEY (826 United Kingdom of Great Britain and Northern Ireland), T. van MARREWIJK (528 Netherlands), D. BOWEN (826 United Kingdom of Great Britain and Northern Ireland), E. HELLSTROM-LINDBERG (752 Sweden), A. TATIC (642 Romania), A. SYMEONIDIS (300 Greece), G. HULS (528 Netherlands), J. CERMAK (203 Czech Republic), A. A. van de LOOSDRECHT (528 Netherlands), H. GARELIUS (752 Sweden), D. CULLIGAN (826 United Kingdom of Great Britain and Northern Ireland), M. MACHETA (826 United Kingdom of Great Britain and Northern Ireland), M. SPANOUDAKIS (826 United Kingdom of Great Britain and Northern Ireland), P. PANAGIOTIDIS (826 United Kingdom of Great Britain and Northern Ireland), Marta KREJČÍ (203 Czech Republic, belonging to the institution), N. BLIJLEVENS (528 Netherlands), S. LANGEMEIJER (528 Netherlands), J. DROSTE (528 Netherlands), D. W. SWINKELS (528 Netherlands), A. de SMITH (528 Netherlands) and T. de WITTE (528 Netherlands, guarantor)

Edition

Haematologica, PAVIA, FERRATA STORTI FOUNDATION, 2018, 0390-6078

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30205 Hematology

Country of publisher

Italy

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 7.570

RIV identification code

RIV/00216224:14110/18:00106196

Organization unit

Faculty of Medicine

UT WoS

000418944500021

Keywords in English

myelodysplastic syndromes

Tags

Tags

International impact, Reviewed
Změněno: 14/2/2019 15:07, Soňa Böhmová

Abstract

V originále

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 the 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.