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Research in to the basic, epidemiological, preventive, clinical and translational aspects of leukemia and other hematologic malignancies

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Recent publications

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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Greenberg PL, Tuechler H, Schanz J, Sanz G, Garcia-Manero G, Solé F, Bennett JM, Bowen D, Fenaux P, Dreyfus F, Kantarjian H, Kuendgen A, Levis A, Malcovati L, Cazzola M, Cermak J, Fonatsch C, Le Beau MM, Slovak ML, Krieger O, Luebbert M, Maciejewski J, Magalhaes SM, Miyazaki Y, Pfeilstöcker M, Sekeres M, Sperr WR, Stauder R, Tauro S, Valent P, Vallespi T, van de Loosdrecht AA, Germing U, Haase D

Cytopenia levels for aiding establishment of the diagnosis of myelodysplastic syndromes.

Blood 17 Aug 2016, . Epub 17 Aug 2016More information
Sorigue M, Ribera JM, Motlló C, Sancho JM

New drugs for follicular lymphoma.

Leuk. Res. 10 Aug 2016, 49 38-46. Epub 10 Aug 2016
Despite the improvement in prognosis since the advent of rituximab, follicular lymphoma is still incurable and remains the cause of death of most afflicted patients. With the expanding knowledge of the pathogenesis of B-cell malignancies, in the last few years a plethora of new therapies acting through a variety of mechanisms have shown promising results. This review attempts to analyze the evidence available on these new drugs, which include new monoclonal antibodies and immunoconjugates, the anti-angiogenic and immunomodulatory agent lenalidomide, the proteasome inhibitor bortezomib, inhibitors of B-cell receptor pathway enzymes, such as ibrutinib, idelalisib, duvelisib and entospletinib, BCL2 inhibitors and checkpoint inhibitors. We conclude that despite the high expectations around the new therapeutic options for patients with refractory disease, these new drugs have side effects that require caution with their use, particularly in light of the still short follow up and the lack of both randomized trials and data on combination regimens.
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Sorigue M, Ribera JM, Sancho JM


Ann. Oncol. 8 Aug 2016, . Epub 8 Aug 2016More information
Paiva B, Puig N, Cedena MT, de Jong BG, Ruiz Y, Rapado I, Martinez-Lopez J, Cordon L, Alignani D, Delgado JA, van Zelm MC, Van Dongen JJ, Pascual M, Aguirre X, Prosper F, Martín-Subero JI, Vidriales MB, Gutierrez NC, Hernandez MT, Oriol A, Echeveste MA, Gonzalez Y, Johnson SK, Epstein J, Barlogie B, Morgan GJ, Orfao A, Blade J, Mateos MV, Lahuerta JJ, Miguel JF

Differentiation stage of myeloma plasma cells: biological and clinical significance.

Leukemia 1 Aug 2016, . Epub 1 Aug 2016
The notion that plasma cells (PCs) are terminally-differentiated has prevented intensive research in multiple myeloma (MM) about their phenotypic plasticity and differentiation. Here, we demonstrated in healthy individuals (n=20) that the CD19-CD81 expression axis identifies three bone marrow (BM)PC subsets with distinct age-prevalence, proliferation, replication-history, immunoglobulin-production, and phenotype, consistent with progressively increased differentiation from CD19+CD81+ into CD19-CD81+ and CD19-CD81- BMPCs. Afterwards, we demonstrated in 225 newly-diagnosed MM patients that, comparing to normal BMPC counterparts, 59% had fully-differentiated (CD19-CD81-) clones, 38% intermediate-differentiated (CD19-CD81+), and 3% less-differentiated (CD19+CD81+) clones. The latter patients had dismal outcome, and PC differentiation emerged as an independent prognostic marker for progression-free (HR:1.7;P=0.005) and overall survival (HR:2.1;P=0.006). Longitudinal comparison of diagnostic vs minimal-residual-disease samples (n=40) unraveled that in 20% of patients, less-differentiated PCs subclones become enriched after therapy-induced pressure. We also revealed that CD81 expression is epigenetically regulated, that less-differentiated clonal PCs retain high expression of genes related to preceding B-cell stages (e.g.:PAX5), and show distinct mutation profile vs. fully-differentiated PC clones within individual patients. Together, we shed new light into PC plasticity and demonstrated that MM patients harboring less-differentiated PCs have dismal survival, which might be related to higher chemoresistant potential plus different molecular and genomic profiles.Leukemia accepted article preview online, 01 August 2016. doi:10.1038/leu.2016.211.
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