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Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K

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https://www.readbyqxmd.com/read/27909345/cardiologist-s-perspective-to-the-european-leukemianet-recommendations-for-the-management-and-avoidance-of-adverse-events-of-treatment-in-chronic-myeloid-leukaemia
#1
C Constance, L Trudeau, E M Jolicoeur, D Langleben, A Rivard, R Chehayeb, M-A Côté, D Delgado
No abstract text is available yet for this article.
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27909344/response-to-overexpression-of-abcb1-as-prediction-marker-for-cml-how-close-we-are-to-translation-into-clinics
#2
L N Eadie, T P Hughes, D L White
No abstract text is available yet for this article.
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27909343/frequent-evolution-of-copy-number-alterations-in-cll-following-first-line-treatment-with-fc-r-is-enriched-with-tp53-alterations-results-from-the-cll8-trial
#3
J Edelmann, E Tausch, D A Landau, S Robrecht, J Bahlo, K Fischer, A M Fink, J Bloehdorn, K Holzmann, S Böttcher, L Werner, M Kneba, J G Gribben, D S Neuberg, C J Wu, M Hallek, H Döhner, S Stilgenbauer
No abstract text is available yet for this article.
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27909342/ristocetin-induced-platelet-aggregation-for-monitoring-of-bleeding-tendency-in-cll-treated-with-ibrutinib
#4
L Kazianka, C Drucker, C Skrabs, W Thomas, T Melchardt, S Struve, M Bergmann, P B Staber, E Porpaczy, C Einberger, M Heinz, A Hauswirth, M Raderer, I Pabinger, R Thalhammer, A Egle, C-M Wendtner, G Follows, G Hoermann, P Quehenberger, B Jilma, U Jaeger
Bleeding because of impaired platelet function is a major side effect of the Bruton's tyrosine kinase (BTK) inhibitor ibrutinib. We quantitatively assessed ristocetin-induced platelet aggregation (RIPA) in 64 patients with chronic lymphocytic leukemia (CLL) under ibrutinib at 287 time points. Eighty-seven bleeding episodes in 39 patients were registered (85 Common Toxicity Criteria (CTC) grade 1 or 2, 2 CTC grade 3) during a median observation period of 10.9 months. At times of bleeding, RIPA values were significantly lower (14 vs 28 U; P<0...
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27909306/rpl5-on-1p22-1-is-recurrently-deleted-in-multiple-myeloma-and-its-expression-is-linked-to-bortezomib-response
#5
I J F Hofman, M Van Duin, E De Bruyne, L Fancello, G Mulligan, E Geerdens, E Garelli, C Mancini, H Lemmens, M Delforge, P Vandenberghe, I Wlodarska, A Aspesi, L Michaux, K Vanderkerken, P Sonneveld, K De Keersmaecker
Chromosomal region 1p22 is deleted in ⩾20% of multiple myeloma (MM) patients, suggesting the presence of an unidentified tumor suppressor. Using high-resolution genomic profiling, we delimit a 58 kb minimal deleted region (MDR) on 1p22.1 encompassing two genes: ectopic viral integration site 5 (EVI5) and ribosomal protein L5 (RPL5). Low mRNA expression of EVI5 and RPL5 was associated with worse survival in diagnostic cases. Patients with 1p22 deletion had lower mRNA expression of EVI5 and RPL5, however, 1p22 deletion status is a bad predictor of RPL5 expression in some cases, suggesting that other mechanisms downregulate RPL5 expression...
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27885273/fatty-acid-binding-protein-fabp4-mechanistically-links-obesity-with-aggressive-aml-by-enhancing-aberrant-dna-methylation-in-aml-cells
#6
F Yan, N Shen, J X Pang, Y W Zhang, E Y Rao, A M Bode, A Al-Kali, D E Zhang, M R Litzow, B Li, S J Liu
Obesity is becoming more prevalent worldwide and is a major risk factor for cancer development. Acute myeloid leukemia (AML), the most common acute leukemia in adults, remains a frequently fatal disease. Here we investigated the molecular mechanisms by which obesity favors AML growth and uncovered the fatty acid-binding protein 4 (FABP4) and DNA methyltransferase 1 (DNMT1) regulatory axis that mediates aggressive AML in obesity. We showed that leukemia burden was much higher in high-fat diet-induced obese mice, which had higher levels of FABP4 and interleukin (IL)-6 in the sera...
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27840427/pd-l1-cd274-promoter-methylation-predicts-survival-in-patients-with-acute-myeloid-leukemia
#7
D Goltz, H Gevensleben, S Grünen, J Dietrich, G Kristiansen, J Landsberg, D Dietrich
No abstract text is available yet for this article.
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27833094/enhanced-sensitivity-to-glucocorticoids-in-cytarabine-resistant-aml
#8
D Malani, A Murumägi, B Yadav, M Kontro, S Eldfors, A Kumar, R Karjalainen, M M Majumder, P Ojamies, T Pemovska, K Wennerberg, C Heckman, K Porkka, M Wolf, T Aittokallio, O Kallioniemi
We sought to identify drugs that could counteract cytarabine resistance in acute myeloid leukemia (AML) by generating eight resistant variants from MOLM-13 and SHI-1 AML cell lines by long-term drug treatment. These cells were compared with 66 ex vivo chemorefractory samples from cytarabine-treated AML patients. The models and patient cells were subjected to genomic and transcriptomic profiling and high-throughput testing with 250 emerging and clinical oncology compounds. Genomic profiling uncovered deletion of the deoxycytidine kinase (DCK) gene in both MOLM-13- and SHI-1-derived cytarabine-resistant variants and in an AML patient sample...
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27811850/antigen-receptor-stereotypy-in-chronic-lymphocytic-leukemia
#9
REVIEW
K Stamatopoulos, A Agathangelidis, R Rosenquist, P Ghia
The discovery of almost identical or 'stereotyped' B-cell receptor immunoglobulins (BcR IG) among unrelated patients with chronic lymphocytic leukemia (CLL) cemented the idea of antigen selection in disease ontogeny and evolution. The systematic analysis of the stereotypy phenomenon in CLL revealed that around one-third of CLL patients may be grouped into subsets based on shared sequence motifs within the variable heavy complementarity determining region 3. Stereotyped subsets display a strikingly similar biology of the leukemic clones, referring to many different levels, from the immunogenetic and genetic and extending to the epigenetic and functional levels...
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27795560/a-novel-t-3-13-q13-q12-translocation-fusing-flt3-with-golgb1-toward-myeloid-lymphoid-neoplasms-with-eosinophilia-and-rearrangement-of-flt3
#10
E Troadec, S Dobbelstein, P Bertrand, N Faumont, F Trimoreau, M Touati, J Chauzeix, B Petit, D Bordessoule, J Feuillard, C Bastard, N Gachard
No abstract text is available yet for this article.
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27773933/targeting-transcription-coupled-nucleotide-excision-repair-overcomes-resistance-in-chronic-lymphocytic-leukemia
#11
G Lohmann, E Vasyutina, J Bloehdorn, N Reinart, J I Schneider, V Babu, G Knittel, G Crispatzu, P Mayer, C Prinz, J K Muenzner, B Biersack, D G Efremov, L Chessa, C D Herling, S Stilgenbauer, M Hallek, R Schobert, H C Reinhardt, B Schumacher, M Herling
Treatment resistance becomes a challenge at some point in the course of most patients with chronic lymphocytic leukemia (CLL). This applies to fludarabine-based regimens, and is also an increasing concern in the era of more targeted therapies. As cells with low-replicative activity rely on repair that triggers checkpoint-independent noncanonical pathways, we reasoned that targeting the nucleotide excision repair (NER) reaction addresses a vulnerability of CLL and might even synergize with fludarabine, which blocks the NER gap-filling step...
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27740635/a-novel-signalling-screen-demonstrates-that-calr-mutations-activate-essential-mapk-signalling-and-facilitate-megakaryocyte-differentiation
#12
K Kollmann, W Warsch, C Gonzalez-Arias, F L Nice, E Avezov, J Milburn, J Li, D Dimitropoulou, S Biddie, M Wang, E Poynton, M Colzani, M R Tijssen, S Anand, U McDermott, B Huntly, T Green
Most myeloproliferative neoplasm (MPN) patients lacking JAK2 mutations harbour somatic CALR mutations that are thought to activate cytokine signalling although the mechanism is unclear. To identify kinases important for survival of CALR-mutant cells, we developed a novel strategy (KISMET) that utilizes the full range of kinase selectivity data available from each inhibitor and thus takes advantage of off-target noise that limits conventional small-interfering RNA or inhibitor screens. KISMET successfully identified known essential kinases in haematopoietic and non-haematopoietic cell lines and identified the mitogen activated protein kinase (MAPK) pathway as required for growth of the CALR-mutated MARIMO cells...
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27904140/restrictions-in-the-t-cell-repertoire-of-chronic-lymphocytic-leukemia-high-throughput-immunoprofiling-supports-selection-by-shared-antigenic-elements
#13
A Vardi, E Vlachonikola, M Karypidou, E Stalika, V Bikos, K Gemenetzi, C Maramis, A Siorenta, A Anagnostopoulos, S Pospisilova, N Maglaveras, I Chouvarda, K Stamatopoulos, A Hadzidimitriou
Immunoglobulin (IG) gene repertoire restrictions strongly support antigen selection in the pathogenesis of chronic lymphocytic leukemia (CLL). Given the emerging multifarious interactions between CLL and bystander T cells, we sought to determine whether antigen(s) are also selecting T cells in CLL. We performed a large-scale, next-generation sequencing (NGS) study of the T-cell repertoire, focusing on major stereotyped subsets representing CLL subgroups with undisputed antigenic drive, but also included patients carrying non-subset IG rearrangements to seek for T-cell immunogenetic signatures ubiquitous in CLL...
December 1, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27904139/interphase-fluorescence-in-situ-hybridization-ifish-in-untreated-al-amyloidosis-has-an-independent-prognostic-impact-by-abnormality-type-and-treatment-category
#14
E Muchtar, A Dispenzieri, S K Kumar, R P Ketterling, D Dingli, M Q Lacy, F K Buadi, S R Hayman, P Kapoor, N Leung, R Chakraborty, W Gonsalves, R Warsame, T V Kourelis, S Russell, J A Lust, Y Lin, R S Go, S Zeldenrust, R A Kyle, S V Rajkumar, M A Gertz
The significance of interphase fluorescence in-situ hybridization (iFISH) by regimen type was assessed in 692 AL amyloidosis patients with iFISH at diagnosis. First line treatment was categorized as stem cell transplant and three non-transplant regimens. The most common abnormality was t(11;14) (49% of patients) followed by monosomy 13/del(13q) (36%) and trisomies (26%). A lower rate of very good partial response (VGPR) or better was observed in patients with t(11;14) treated with bortezomib-based (52 vs 77%; P=0...
December 1, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27904138/cirmtuzumab-inhibits-wnt5a-induced-rac1-activation-in-chronic-lymphocytic-leukemia-treated-with-ibrutinib
#15
J Yu, L Chen, B Cui, C Wu, M Y Choi, Y Chen, L Zhang, L Z Rassenti, G F Widhopf, T J Kipps
Signaling via the B cell receptor (BCR) plays an important role in the pathogenesis and progression of chronic lymphocytic leukemia (CLL). This is underscored by the clinical effectiveness of ibrutinib, an inhibitor of Bruton's tyrosine kinase (BTK) that can block BCR-signaling. However, ibrutinib cannot induce complete responses (CR) or durable remissions without continued therapy, suggesting alternative pathways also contribute to CLL growth/survival that are independent of BCR-signaling. ROR1 is a receptor for Wnt5a, which can promote activation of Rac1 to enhance CLL-cell proliferation and survival...
December 1, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27899806/preleukemia-one-name-many-meanings
#16
REVIEW
H P Koeffler, G Leong
Definition of preleukemia has evolved. It was first used to describe the myelodysplastic syndrome (MDS) with a propensity to progress to acute myeloid leukemia (AML). Individuals with germline mutations of either RUNX1, CEBPA, or GATA2 can also be called as preleukemic because they have a markedly increased incidence of evolution into AML. Also, alkylating chemotherapy or radiation can cause MDS/preleukemia which nearly always progress to AML. More recently investigators noted that AML patients who achieved complete morphological remission after chemotherapy often have clonal hematopoiesis predominantly marked by either DNMT3A, TET2 or IDH1/2 mutations which were also present at diagnosis of AML...
November 30, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27899805/circulating-tumour-dna-analysis-demonstrates-spatial-mutational-heterogeneity-that-coincides-with-disease-relapse-in-myeloma
#17
S Mithraprabhu, T Khong, M Ramachandran, A Chow, D Klarica, L Mai, S Walsh, D Broemeling, A Marziali, M Wiggin, J Hocking, A Kalff, B Durie, A Spencer
Mutational characterisation in multiple myeloma (MM) currently relies on bone marrow (BM) biopsy, which fails to capture the putative spatial and genetic heterogeneity of this multi-focal disease. Analysis of plasma (PL)-derived circulating free tumour DNA (ctDNA) as an adjunct to BM biopsy, for mutational characterisation and tracking disease progression, was evaluated. Paired BM MM cell DNA and ctDNA from 33 relapsed [RR] and 15 newly diagnosed [ND] patients were analysed for KRAS, NRAS, BRAF and TP53 mutations using the OnTarget™ Mutation Detection (OMD) platform...
November 30, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27899804/casein-kinase-2-controls-the-survival-of-normal-thymic-and-leukemic-%C3%AE-%C3%AE-t-cells-via-promotion-of-akt-signaling
#18
S T Ribeiro, M Tesio, J C Ribot, E Macintyre, J T Barata, B Silva-Santos
The thymus is the major site for normal and leukemic T-cell development. The dissection of the molecular determinants of T-cell survival and differentiation is paramount for the manipulation of healthy or transformed T cells in cancer (immuno)therapy. Casein Kinase 2 (CK2) is a serine-threonine protein kinase whose anti-apoptotic functions have been described in various hematological and solid tumors. Here we disclose an unanticipated role of CK2 in healthy human thymocytes that is selective to the γδ T-cell lineage...
November 30, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27899803/novel-targets-in-the-treatment-of-chronic-graft-versus-host-disease
#19
REVIEW
A Im, F T Hakim, S Z Pavletic
Despite advances that have improved survival after allogeneic hematopoietic stem cell transplantation (HCT), chronic graft-versus-host disease (GVHD) remains a leading cause of late morbidity and mortality after transplant. Current treatment options show limited efficacy in steroid-refractory disease, and there exists a paucity of robust data to guide management decisions. Lack of United States Food and Drug Administration (FDA) or European Medicines Agency (EMA) approved agents in GVHD underscore the importance of developing novel therapies...
November 30, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27899802/genomic-and-transcriptional-landscape-of-p2ry8-crlf2-positive-childhood-acute-lymphoblastic-leukemia
#20
C Vesely, C Frech, C Eckert, G Cario, A Mecklenbräuker, U Zur Stadt, K Nebral, F Kraler, S Fischer, A Attarbaschi, M Schuster, C Bock, H Cavé, A von Stackelberg, M Schrappe, M A Horstmann, G Mann, O A Haas, R Panzer-Grümayer
Children with P2RY8-CRLF2-positive ALL have an increased relapse risk. Their mutational and transcriptional landscape as well as the respective patterns at relapse remains largely elusive. We therefore performed an integrated analysis of whole-exome and RNA-sequencing in 41 major clone fusion-positive cases including 19 matched diagnosis/relapse pairs. We detected a variety of frequently subclonal and highly instable JAK/STAT but also RTK/Ras pathway activating mutations in 76% of cases at diagnosis and virtually all relapses...
November 30, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
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20191
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