International Journal of Hematology

, Volume 106, Issue 6, pp 794–800 | Cite as

Polymorphism in IKZF1 gene affects clinical outcome in diffuse large B-cell lymphoma

  • Marta Bielska
  • Maciej Borowiec
  • Dorota Jesionek-Kupnicka
  • Marcin Braun
  • Marcin Bojo
  • Agata Pastorczak
  • Ewa Kalinka-Warzocha
  • Monika Prochorec-Sobieszek
  • Tadeusz Robak
  • Krzysztof Warzocha
  • Wojciech MłynarskiEmail author
  • Ewa Lech-Marańda
Original Article


IKZF1 encodes a transcription factor involved in B-cell maturation and differentiation. We genotyped 218 diffuse large B-cell lymphoma (DLBCL) patients and 715 unrelated controls using a TaqMan allelic discrimination assay. No statistical difference was observed in the genotype distribution of the IKZF1 rs4132601 polymorphism between DLBCL patients and controls. However, the 2-year PFS rate of patients with the IKZF1 TT genotype was 54.3% compared to 68.6% in those with the IKZF1 G+ genotypes. Moreover, the IKZF1 rs4132601 polymorphism retained its independent prognostic impact on PFS. A more pronounced effect of the IKZF1 TT genotype on PFS was detected in patients with low/intermediate low IPI-risk group. When analysis was restricted to patients with GCB-type pattern, those with the IKZF1 TT genotype achieved a lower 5-year OS rate than the patients with the IKZF1 G+ genotypes (19.6 vs. 56%). This study provides the first evidence for the association of IKZF1 variants with DLBCL outcome.


IKZF1 Diffuse large B-cell lymphoma Gene polymorphism 


Author contributions

MBi, AP, MBor, WM designed the experiments. MBi, AP performed the experiments. MBi, WM, ELM analyzed the data. MBoj, ELM collected the clinical data. MBi, MBr, MBoj collected patient material. DJK, EKW, MPS, TR, KW, ELM provided material. MBi, WM, ELM carried out figures/tables preparations. MBi wrote the manuscript. WM, ELM, AP carried out revision. All authors read and approved the final manuscript.

Compliance with ethical standards

Ethics approval and consent to participate

All experimental procedures were approved by the Bioethics Committee of Medical University of Lodz, Poland (RNN/141/13/KE).

Conflict of interest

The authors reported no potential conflicts of interests.


This work was supported by Grant from National Science Centre (project 2013/09/N/NZ5/00822) and by Medical University of Lodz grant (project 502-03/2-159-02/502-14-195).

Supplementary material

12185_2017_2315_MOESM1_ESM.pdf (218 kb)
Supplementary material 1 (PDF 217 kb)


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Copyright information

© The Japanese Society of Hematology 2017

Authors and Affiliations

  • Marta Bielska
    • 1
  • Maciej Borowiec
    • 2
  • Dorota Jesionek-Kupnicka
    • 3
  • Marcin Braun
    • 1
    • 3
    • 4
  • Marcin Bojo
    • 5
  • Agata Pastorczak
    • 1
  • Ewa Kalinka-Warzocha
    • 5
  • Monika Prochorec-Sobieszek
    • 6
  • Tadeusz Robak
    • 7
  • Krzysztof Warzocha
    • 8
  • Wojciech Młynarski
    • 1
    Email author
  • Ewa Lech-Marańda
    • 8
    • 9
  1. 1.Department of Pediatrics, Oncology, Hematology and DiabetologyMedical University of LodzLodzPoland
  2. 2.Department of Clinical GeneticsMedical University of LodzLodzPoland
  3. 3.Chair of Oncology, Department of PathologyMedical University of LodzLodzPoland
  4. 4.Postgraduate School of Molecular MedicineMedical University of WarsawWarsawPoland
  5. 5.Department of ChemotherapyWojewódzki Szpital Specjalistyczny im. M. KopernikaLodzPoland
  6. 6.Department of Diagnostic HematologyInstitute of Hematology and Transfusion MedicineWarsawPoland
  7. 7.Department of HematologyMedical University of LodzWarsawPoland
  8. 8.Department of HematologyInstitute of Hematology and Transfusion MedicineWarsawPoland
  9. 9.Department of Hematology and Transfusion MedicineCentre of Postgraduate Medical EducationWarsawPoland

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