Articles

The role of myeloid-derived suppressor cells in haematology: hype or reality?

BJH - volume 7, issue 6, december 2016

M. Beckers MD, PhD, D. Dierickx MD, PhD, T. Devos MD, PhD, S. Fevery MD, PhD, B. Sprangers MD, PhD

Summary

One of the hallmarks of failure of elimination of malignant cells by activated T-cells is the immunosuppressive environment of the tumour. Myeloid-derived suppressor cells contribute to this immunosuppressive environment by inhibition of the adaptive and innate immune system. In this article we describe the current knowledge of the role of myeloid-derived suppressor cells in the progression of haematological malignancies.

(BELG J HEMATOL 2016;7(6):213–6)

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Discontinuation of imatinib in Belgian patients with chronic myeloid leukaemia

BJH - volume 7, issue 5, october 2016

P. Mineur MD, C. Doyen MD, PhD, N. Straetmans MD, PhD, K. Van Eygen MD, D. Pranger MD, A. Bosly MD, PhD, M. André MD, T. Devos MD, PhD, L. Knoops MD, PhD, On behalf of the MPN Belgian Hematological Society subcommittee

Summary

This article describes the Belgian register of chronic myeloid leukaemia patients who have stopped their treatment with imatinib in conditions comparable to the French STIM trial results: 44% remained in major molecular response off therapy; relapses appear rapidly after stopping imatinib and are responsive when the treatment is resumed.

(BELG J HEMATOL 2016;7(5):184–6)

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P2.02 Belgian consensus on the diagnosis and management of Paroxysmal Nocturnal Hemoglobinuria

BJH - volume 7, issue Abstract Book BHS, january 2016

B. Devalet , N. Boeckx MD, PhD, B. Chatelain PharmD, C. Chatelain MD, D. Deeren , A. Gothot MD, PhD, S. Meers MD, PhD, T. Devos MD, PhD

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P4.09 MPL S204P is a Recurrent Mutation in Essential Thrombocythemia

BJH - volume 7, issue Abstract Book BHS, january 2016

C. AL Assaf , P. Papadopoulos , S. Smits , L. Gutiérrez , I. Tanyalcin , M. Fierce , E. Lierman PhD, T. Devos MD, PhD, J. Billiet MD, P. Vandenberghe MD, PhD

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P4.10 The Ponatinib Named Patient Programme (NPP): Real-life Data from Belgian Patients

BJH - volume 7, issue Abstract Book BHS, january 2016

L. Knoops MD, PhD, G. Verhoef MD, PhD, Z. Berneman MD, PhD, D. Selleslag MD, N. Straetmans MD, PhD, L. Noens MD, PhD, P. Lewalle MD, PhD, M. André MD, D. Pranger MD, P. Zachée MD, PhD, E. Strobbe , L.J. McGarry , T. Devos MD, PhD

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Practical management of chronic myeloid leukaemia in Belgium

BJH - volume 6, issue 1, march 2015

F. S. Benghiat MD, PhD, Y. Beguin MD, PhD, B. Dessars MD, PhD, T. Devos MD, PhD, P. Lewalle MD, PhD, P. Mineur MD, N. Straetmans MD, PhD, K. Van Eygen MD, G. Verhoef MD, PhD, L. Knoops MD, PhD

Summary

Imatinib has drastically changed the outcome of patients with chronic myeloid leukaemia, with the majority of them showing a normal life span. Recently, the development of second and third generation tyrosine kinase inhibitors and the possibility of treatment discontinuation made the management of these patients more challenging. In this review, practical management guidelines of chronic myeloid leukaemia are presented adapted to the Belgian situation in 2014. In first line chronic phase patients, imatinib, nilotinib and dasatinib can be prescribed. While second generation tyrosine kinase inhibitors give faster and deeper responses, their impact on long-term survival remain to be determined. The choice of the tyrosine kinase inhibitor depends on chronic myeloid leukaemia risk score, priority for a deep response to allow a treatment-free remission protocol, age, presence of comorbid conditions, side effect profile, drug interactions, compliance concerns and price. Monitoring the response has to be done according the 2013 European LeukemiaNet criteria, and is based on the bone-marrow cytogenetic response during the first months and on the blood molecular response. Molecular follow-up is sufficient in patients with a complete cytogenetic response. For patients who fail frontline therapy, nilotinib, dasatinib, bosutinib and ponatinib are an option depending on the type of intolerance or resistance. T315I patients are only sensitive to ponatinib, which has to be carefully handled due to cardiovascular toxicity. Advanced phase diseases are more difficult to handle, with treatments including allogeneic stem cell transplantation, which is also an option for patients failing at least two tyrosine kinase inhibitors. The possibility of treatment-free remission and pregnancy are also discussed.

(BELG J HEMATOL 2015;6(1): 16–32)

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O.2 Analysis of Phenotype and Outcome in Essential Thrombocythemia with CALR and JAK2 mutations

BJH - volume 6, issue Abstract Book BHS, january 2015

C. AL Assaf , F. Van Obbergh MD, J. Billiet MD, E. Lierman PhD, T. Devos MD, PhD, C. Graux MD, PhD, A.S. Hervent , T. Tousseyn MD, PhD, P. De Paepe MD, PhD, P. Papadopoulos , L. Michaux MD, PhD, P. Vandenberghe MD, PhD

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