Evidence for a pre-existing telomere deficit in non-clonal hematopoietic stem cells in patients with acute myeloid leukemia.

Abstract:

:Telomere shortening represents an established mechanism connecting aging and cancer development. We sequentially analyzed telomere length (TL) of 49 acute myeloid leukemia (AML) patients at diagnosis (n = 24), once they achieved complete cytological remission (CCR) and/or during refractory disease or relapse and after 1-year follow-up, with all patients having at least two sequential samples. TL was analyzed by monochrome multiplex quantitative polymerase chain reaction. We have observed substantially shortened TL in the cells of patients at diagnosis compared to age-adjusted controls. In patients reaching CCR after chemotherapy, telomere shortening was less pronounced than in persistence or relapse but still significantly shortened compared to controls. We estimate patients harboring approximately 20 years of premature telomere loss compared to healthy aged-matched subjects at the time of AML onset. Our data indicate a pre-existing telomere deficit in non-clonal hematopoiesis of AML patients providing a link between age and AML development.

journal_name

Ann Hematol

journal_title

Annals of hematology

authors

Ventura Ferreira MS,Crysandt M,Ziegler P,Hummel S,Wilop S,Kirschner M,Schemionek M,Jost E,Wagner W,Brümmendorf TH,Beier F

doi

10.1007/s00277-017-3049-z

subject

Has Abstract

pub_date

2017-09-01 00:00:00

pages

1457-1461

issue

9

eissn

0939-5555

issn

1432-0584

pii

10.1007/s00277-017-3049-z

journal_volume

96

pub_type

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