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Juncà J, Garcia O, Garcia-Caro M, Vila J, Zamora L, Cabezón M, Alonso E, de la Banda E, Rodríguez-Hernández I, Ribera JM, Millá F

CD34 expression and the outcome of nucleophosmin 1-mutated acute myeloid leukemia.

Ann. Hematol. 5 Sep 2016, . Epub 5 Sep 2016
CD34 positivity has been considered as an adverse prognostic factor in acute myeloid leukemia (AML). Although nucleophosmin 1-mutated (NPM1m) AML is usually CD34 negative, this marker may be expressed at diagnosis or acquired at relapse in a variable number of cases. Our objective was to ascertain if CD34 expression has any influence on the general outcome of this form of acute leukemia. Analysis of clinical outcome (complete remissions, relapses, disease-free survival, and overall survival) was performed depending on the degree of expression of CD34 determined by flow cytometry, in 67 adult patients with NPM1m AML. CD34 expression did not have any influence on the variables analyzed whatever the percentage of blasts expressing this marker. In contrast to other forms of AML, CD34 expression is not an unfavorable prognostic factor in NPM1m AML, neither at diagnosis nor at relapse.
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Gökbuget N, Dombret H, Ribera JM, Fielding AK, Advani A, Bassan R, Chia V, Doubek M, Giebel S, Hoelzer D, Ifrah N, Katz A, Kelsh M, Martinelli G, Morgades M, O' Brien S, Rowe JM, Stieglmaier J, Wadleigh M, Kantarjian H

International reference analysis of outcomes in adults with B-precursor Ph-negative relapsed/refractory acute lymphoblastic leukemia.

Haematologica 1 Sep 2016, . Epub 1 Sep 2016
Adults with relapsed/refractory acute lymphoblastic leukemia have an unfavourable prognosis, which is influenced by disease and patient characteristics. To further evaluate these characteristics, a retrospective analysis of 1,706 adult patients with Ph-negative relapsed/refractory B-precursor acute lymphoblastic leukemia diagnosed between 1990-2013 was conducted using data reflecting the standard of care from 11 study groups and large centers in Europe and the United States. Outcomes included complete remission, overall survival, and realization of stem cell transplantation after salvage treatment. The overall complete remission rate after first salvage was 40%, ranging from 35%-41% across disease status categories (primary refractory, relapsed with or without prior transplant), and was lower in second (21%) and third or greater (11%) salvage The overall complete remission rate was higher for patients diagnosed from 2005 onward (45%, 95% CI: 39%-50%). One- and three-year survival rates in first, second, and third or greater salvage were 26% and 11%, 18% and 6%, and 15% and 4% respectively, with rates 2%-5% higher among patients diagnosed from 2005. Prognostic factors included younger age, longer duration of first remission, and lower white blood cell counts at primary diagnosis. This large dataset can provide detailed reference outcomes for patients with relapsed/refractory Ph-negative B-precursor acute lymphoblastic leukemia.
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Fernández-Álvarez R, Sancho JM, Ribera JM

[Plasmablastic lymphoma].

Med Clin (Barc) 28 Aug 2016, . Epub 28 Aug 2016
Plasmablastic lymphoma (PBL) is a rare and aggressive subtype of non-Hodgkin lymphoma that commonly occurs in human immunodeficiency virus (HIV)-positive individuals, and affects oral sites. Occasionally, it has been described in HIV-negative patients and involving non-oral sites. Pathologically, PBL is a high-grade B-cell lymphoma that displays the immunophenotype of a terminally differentiated B-lymphocyte with loss of B-cell markers (CD20) and expression of plasma-cell antigens. Epstein-Barr virus infection and MYC rearrangements are frequently observed. Treatment of PBL is challenging because of the lack of established treatment and poor outcomes, with median survival times shorter than one year. In this review, we discuss the clinical and epidemiologic spectrum of PBL as well as its distinct pathological features. Finally, we summarize the currently available approaches for the treatment of patients with PBL.
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Sorigue M, Sancho JM, Morgades M, Moreno M, Grífols JR, Alonso E, Juncà J, Ferrà C, Batlle M, Vives S, Motlló C, García-Caro M, Navarro JT, Millà F, Feliu E, Ribera JM

Relapse risk after autologous stem cell transplantation in patients with lymphoma based on CD34+ cell dose.

Leuk. Lymphoma 26 Aug 2016, 1-7. Epub 26 Aug 2016
It is unclear whether higher CD34 + cell doses infused for ASCT have any influence on survival or relapse in patients with lymphoma. We analyzed the correlation of infused CD34 + cell dose with relapse, survival, and hematopoietic recovery in 146 consecutive patients undergoing ASCT for lymphoma. Higher doses (>5 × 10(6)/kg) were significantly correlated with earlier hematopoietic recovery, fewer infectious episodes, lower transfusion needs. No differences were observed in lymphoma outcomes (4-year relapse incidence of 38% [95%CI: 29%-48%] in the lower dose group versus 51% [95%CI: 30%-69%] in the higher dose group, 10-year OS probabilities of 58% [95%CI: 48%-68%] versus 75% [95%CI: 59%-91%], 10-year DFS probabilities of 47% [95%CI: 37%-57%] versus 42% [95%CI: 23%-61%], p = NS for all outcomes). In this series, a higher infused CD34 + cell dose did not correlate with survival or relapse but correlated with earlier hematopoietic recovery and lower resource consumption.
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Negoro E, Radivoyevitch T, Polprasert C, Adema V, Hosono N, Makishima H, Przychodzen B, Hirsch C, Clemente MJ, Nazha A, Santini V, McGraw KL, List AF, Sole F, Sekeres MA, Maciejewski JP

Molecular predictors of response in patients with myeloid neoplasms treated with lenalidomide.

Leukemia 18 Aug 2016, . Epub 18 Aug 2016
Leukemia accepted article preview online, 18 August 2016. doi:10.1038/leu.2016.228.
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