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Overexpression of Arginase 1 is linked to DNMT3A and TET2 mutations in lower-grade myelodysplastic syndromes and chronic myelomonocytic leukemia

Source: Leukemia Research - Category: Hematology Authors: Tags: Research paper Source Type: research

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Conclusions: Posttransplant MNs have a latency period between that seen in AML/MDS related to alkylators and that associated with topoisomerase II inhibitors. The cytogenetic profile suggests a mutagenic effect on leukemogenesis. The clinical outcome for AML/MDS is dismal, with death occurring at an early phase of treatment. PMID: 29228125 [PubMed - as supplied by publisher]
Source: American Journal of Clinical Pathology - Category: Pathology Authors: Tags: Am J Clin Pathol Source Type: research
Authors: An Q, Fan CH, Xu SM Abstract Leukemia is defined as an aberrant hyper-proliferation of immature blood cells that do not form solid tumor masses (i.e., liquid cancer). Usually, leukemia could be either of the myeloid or lymphoid lineages, and is classified as acute or chronic in nature. Chronic leukemias tend to have more mature cells and are rare in pediatric patients. Acute leukemias, on the other hand, are typically less mature and commonly occur in patients of all ages and are potentially rapidly fatal if not readily treated. The acute lymphoblastic leukemia (ALL) is the most common childhood malignancy...
Source: European Review for Medical and Pharmacological Sciences - Category: Drugs & Pharmacology Tags: Eur Rev Med Pharmacol Sci Source Type: research
Abstract While most common symptom of impairment of iron homeostasis is iron deficiency anemia, some hematological disorders are associated with iron overload (IO). These disorders are related mainly to chronic severe hemolytic anemia, where red blood cells (RBC) or their precursors are destroyed prematurely (hemolyzed), leading to anemia that cannot be compensated by increased production of new RBC. In such cases, IO is mainly due to repeated RBC transfusions and/or increased uptake of iron in the gastrointestinal tract. Normally, iron is present in the plasma and in the cells bound to compounds that render it re...
Source: Presse Medicale - Category: General Medicine Authors: Tags: Presse Med Source Type: research
Abstract Bone marrow is the primary hematopoietic organ, which is involved in multiple malignant diseases including acute and chronic leukemia, multiple myeloma, myelodysplastic syndromes, and bone metastases from solid tumors. These malignancies affect normal homeostasis and reshape the bone marrow microenvironment. There are limited treatment options for them because of their inevitable aggravation. The current systemic administration of anticancer agents is difficult to achieve ideal therapeutic dose to suppress tumor growth at bone marrow diseased sites, and is always associated with a high incidence of relaps...
Source: Biomaterials - Category: Materials Science Authors: Tags: Biomaterials Source Type: research
Authors: Ertz-Archambault N, Kelemen K Abstract Based on the current WHO Classification of Myeloid Neoplasms, cytogenetic findings play a central role in the diagnostic classification of the myeloid malignancies. Cytogenetic abnormalities detected at primary diagnosis may change over time. Karyotype changes can be characterized as cytogenetic evolution, cytogenetic regression or a combination of both. While the exact mechanism of cytogenetic evolution is not completely understood, the process of cytogenetic evolution is not random, but follows different, and often disease-specific patterns during progression and re...
Source: Panminerva Medica - Category: General Medicine Tags: Panminerva Med Source Type: research
Abstract Haploidentical stem cell transplantation (haplo-SCT) provides an alternative method to cure patients with malignant and nonmalignant hematologic diseases who lack a human leukocyte antigen (HLA) matched related or unrelated donor. HLA disparity between donor and patient was the main reason causing lots of clinical immune response. The aim of this study was to investigate whether indirect recognition of mismatched HLA could predict the clinical outcomes in haplo-SCT. The probability of indirect recognition was predicted by the Predicted Indirectly ReCognizable HLA Epitopes (PIRCHE) model. 577 patients with...
Source: Human Immunology - Category: Allergy & Immunology Authors: Tags: Hum Immunol Source Type: research
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Source: Journal of Cellular Physiology - Category: Cytology Authors: Tags: ORIGINAL RESEARCH ARTICLE Source Type: research
M, Arnold R, De Witte T, Robin M, Kröger N Abstract No standard exists for the treatment of myelodysplastic syndrome relapsing after allogeneic stem cell transplantation. We performed a retrospective registry analysis of outcome and risk factors in 698 patients, treated with different strategies. Median overall survival from relapse was 4.7 months (4.1-5.3), 2-year survival was 17.7% (14.8-21.2%). Shorter remission after transplantation (p
Source: Haematologica - Category: Hematology Authors: Tags: Haematologica Source Type: research
Abstract Therapy related myeloid neoplasms (t‐MN) including therapy related myelodysplastic syndromes (t‐MDS) and acute myeloid leukemia (t‐AML) are associated with aggressive disease biologies and poor outcomes. In this large (n = 497) and informative (inclusive of molecular and cytogenetic information) chronic myelomonocytic leukemia (CMML) patient cohort, we demonstrate key biological insights and an independent prognostic impact for t‐CMML. T‐CMML was diagnosed in 9% of patients and occurred approximately 7 years after exposure to prior chemotherapy and/or radiation therapy. In comparison to de ...
Source: American Journal of Hematology - Category: Hematology Authors: Tags: RESEARCH ARTICLE Source Type: research
Elevated serum tryptase values may be found in several conditions, including mastocytosis, myeloproliferative neoplasms, hypereosinophilic disorders, and myelodysplastic syndromes. Increased density of tissue mast cells is correlated with poor prognosis in lung adenocarcinoma as well as melanoma, gastric carcinoma, and breast cancer. While an elevated tryptase has been proposed as a biomarker in several hematologic malignancies including chronic myeloid leukemia, an elevated tryptase has not been previously reported in association with lung adenocarcinoma.
Source: Annals of Allergy, Asthma and Immunology - Category: Allergy & Immunology Authors: Source Type: research
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