PubMed Journals Articles About "Reversible Myelodysplastic Syndrome Ineffectual Clonal Haematopoiesis Myeloid Neoplasm" RSS

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Showing "Reversible myelodysplastic syndrome ineffectual clonal haematopoiesis myeloid neoplasm" PubMed Articles 1–25 of 7,200+

"Reversible" myelodysplastic syndrome or ineffectual clonal haematopoiesis? - add(6p) myeloid neoplasm with a spontaneous cytogenetic remission.

Cytotoxic chemotherapy has inherent mutagenic potential and alters the bone marrow microenvironment after therapy. In some cases, this potentiates expansion of an aberrant clone and may lead to a therapy-related myeloid neoplasm if the clone overcomes selective pressure. We present the case of a 43-year-old woman diagnosed with an indolent, therapy-related myeloid neoplasm with an isolated chromosome 6p abnormality following treatment for de novo Acute Myeloid Leukaemia (AML), who manifest a sustained spont...

Myelodysplastic syndrome with fibrosis and complex karyotype arising in a patient with essential thrombocythaemia.

Essential thrombocythaemia (ET) is a chronic myeloproliferative neoplasm (MPN) characterised by persistent thombocytosis. It is an indolent disorder but transformation to myelofibrosis (MF), acute myeloid leukaemia (AML) or myelodyplastic syndrome (MDS) has been reported.

Bone marrow mononuclear cell telomere length in acute myeloid leukaemia and high-risk myelodysplastic syndrome.

Short telomere length is a known risk factor for developing clonal hematopoietic stem cell disorders, probably due to chromosomal instability. We tested the hypotheses that bone marrow mononuclear cell telomere length change from diagnosis through chemotherapy-induced remission and relapse, and that long telomere length is associated with low risk of relapse and all-cause mortality in patients with acute myeloid leukaemia or high-risk myelodysplastic syndrome.

Evaluation of bone marrow microenvironment could change how myelodysplastic syndromes are diagnosed and treated.

Myelodysplastic syndromes are a heterogeneous group of clonal hematopoietic disorders. However, the therapies used against the hematopoietic stem cells clones have limited efficacy; they slow the evolution toward acute myeloid leukemia rather than stop clonal evolution and eradicate the disease. The progress made in recent years regarding the role of the bone marrow microenvironment in disease evolution may contribute to progress in this area. This review presents the recent updates on the role of the bone ...

The prognostic impact of loss of chromosome 7 material detected by fluorescence in situ hybridization (FISH) in myeloid malignancies.

Monosomy 7 (-7) or deletion in its long arm [del(7q)] is among the most common chromosomal abnormalities in myeloid malignancies. There are prognostic variations between -7 and del(7q) in acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS).

The Risk of Clonal Evolution of Granulocyte Colony-Stimulating Factor for Acquired Aplastic Anemia: A Systematic Review and Meta-Analysis.

This meta-analysis aimed to evaluate the risk of clonal evolution of granulocyte colony-stimulating factor (G-CSF) in acquired aplastic anemia (AA), and whether the use of G-CSF increases the occurrence of secondary malignant neoplasms, mainly myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML) or paroxysmal nocturnal hemoglobinuria (PNH).

Incidence of secondary myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML) in patients with ovarian or breast cancer in a real-world setting in the United States.

Real-world data on patients with cancer developing secondary malignancies such as myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML) are lacking. This study assessed the incidence and impact of select DNA-damaging therapy exposure on risk of secondary MDS and AML in patients with ovarian cancer (OC) or breast cancer (BC).

Clonal hematopoiesis of indeterminate potential-associated mutations and risk of comorbidities in patients with myelodysplastic syndrome.

Clonal hematopoiesis of indeterminate potential (CHIP)-associated mutations increase the risk of atherosclerotic heart disease. Comorbidities significantly impact the prognosis of patients with myelodysplastic syndromes (MDS). The objective of this study was to determine the association and impact of CHIP mutations with comorbidities in patients with MDS.

Gelatinous bone marrow transformation and emergence of clonal Philadelphia-negative cytogenetic abnormalities with excess blasts in a patient with chronic myeloid leukemia treated with dasatinib.

Gelatinous bone marrow transformation (GBMT) is a rare pathologic entity of unclear etiology characterized by adipose cell atrophy, focal hematopoietic tissue hypoplasia, and a distinct eosinophilic substance that stains with Alcian blue at pH 2.5. It is traditionally described in the context of malnutrition and cachexia from generalized disease and is important to identify because of its potential reversibility. Several recent case reports have described GBMT in patients with chronic myeloid leukemia (CML)...

Pre-analytical parameters associated with unsuccessful karyotyping in myeloid neoplasm: a study of 421 samples.

Cytogenetics is essential in myeloid neoplasms (MN) and pre-analytical variables are important for karyotyping. We assessed the relationship between pre-analytical variables (time from collection to sample processing, material type, sample cellularity, and diagnosis) and failures of karyotyping. Bone marrow (BM, n=352) and peripheral blood (PB, n=69) samples were analyzed from acute myeloid leukemia (n=113), myelodysplastic syndromes (n=73), myelodysplastic syndromes/myeloproliferative neoplasms (n=17), mye...

Clonal architecture in patients with myelodysplastic syndromes and double or minor complex abnormalities: Detailed analysis of clonal composition, involved abnormalities, and prognostic significance.

The study analyzes the clonal architecture and the abnormalities involved in a series of 191 patients with myelodysplastic syndromes (MDS) and 2-3 clonal abnormalities. All patients were extracted from an international database. The patients were classified into six clonal subtypes (2A-3C) based on the number of abnormalities and the presentation of unrelated clones (UC) and/or a clonal evolution. UC were detected in 23/191 patients (12%). The composition of UC showed great variability. The only recurrent c...

GATA2 hypomorphism induces chronic myelomonocytic leukemia in mice.

The transcription factor GATA2 regulates normal hematopoiesis, particularly in stem cell maintenance and myeloid differentiation. Various heteroallelic GATA2 gene mutations are associated with a variety of hematological neoplasms, including myelodysplastic syndromes and leukemias. Here, we report that impaired GATA2 expression induces myelodysplastic and myeloproliferative neoplasm development in elderly animals, and this neoplasm resembles chronic myelomonocytic leukemia in humans. GATA2 hypomorphic mutant...

Mutation Clearance after Transplantation for Myelodysplastic Syndrome.

Allogeneic hematopoietic stem-cell transplantation is the only curative treatment for patients with myelodysplastic syndrome (MDS). The molecular predictors of disease progression after transplantation are unclear.

Genetic Variant Screening of DNA Repair Genes in Myelodysplastic Syndrome Identifies a Novel Mutation in the XRCC2 Gene.

We aimed to detect single nucleotide polymorphisms (SNPs) and mutations in DNA repair genes and their possible association with myelodysplastic syndrome (MDS).

Phase II Trial of MEK Inhibitor Binimetinib (MEK162) in RAS-mutant Acute Myeloid Leukemia.

Relapsed and refractory (R/R) acute myeloid leukemia (AML) continues to be a therapeutic challenge with poor outcomes. Dysregulation of the mitogen-activated protein (MAP) kinase/extracellular-signal regulated kinase (ERK) pathway frequently occurs in AML and myelodysplastic syndrome (MDS). Preclinical studies and early-phase trials have shown promise for MAP-ERK kinase (MEK) inhibition in AML. We evaluated the safety and efficacy of the MEK 1/2 inhibitor binimetinib in advanced myeloid malignancies.

Re: Therapy-related acute myeloid leukemia and myelodysplastic syndrome among refractory germ cell tumor patients.

Immunophenotypic Features of Myeloid Neoplasms Associated with Chromosome 7 Abnormalities.

Abnormalities involving chromosome 7 are one of the most frequent chromosomal aberrations in myeloid neoplasms including myelodysplastic syndromes (MDS) and acute myeloid leukemia (AML) and are associated with an adverse prognosis. Immunophenotyping by flow cytometry provides data that can assist in the diagnosis and classification of myeloid neoplasms. The immunophenotypic features of myeloid neoplasms with monosomy 7 or del(7q) have not been previously described in a comprehensive fashion.

Myeloid Sarcoma.

Hematological malignancies can manifest as extramedullary soft tissue masses in relatively rare cases. The rarity of it causes a diagnostic and therapeutic challenge. One of the rarest manifestations is myeloid sarcoma (MS). MS develops as part of acute myeloid leukemia, myeloproliferative neoplasm, or myelodysplastic syndrome or at relapse, especially following allogeneic hematopoietic stem cell transplant. The tumor displays high myeloperoxidase expression, hence the color green, and is called chloroma. I...

Characteristics and predictors for secondary leukemia and myelodysplastic syndrome in Ewing and osteosarcoma survivors.

Long-term survivors of Ewing sarcoma (ES) and osteosarcoma may be at risk for therapy-related acute leukemia or myelodysplastic syndrome (t-AL/MDS).

Allogeneic transplantation outcomes amongst a contemporary cohort of high-risk myelodysplastic syndrome and acute myeloid leukemia patients aged ≥70 years.

Allogeneic hematopoietic stem cell transplantation (HCT) is an integral therapy for patients with hematological malignancies, myelodysplasia, and bone marrow failure. Its use has been increasing over the past decade, as understanding of the treatment and its related toxicities has led to changes in patient selection, conditioning regimens, and post-transplant care. Older (age ≥65 years) patients are often considered unfit for transplantation; however, more recent data suggest that older patients, when s...

The management and outcomes of patients with myelodysplastic syndrome with persistent severe thrombocytopenia: An observational single centre registry study.

Severe thrombocytopenia affects 10% of patients with myelodysplastic syndrome (MDS) and is associated with poor outcomes. The role for prophylactic platelet transfusions in the outpatient setting is unknown.

Revert the SIRT: Normalizing SIRT1 Activity in Myelodysplastic Stem Cells.

Myelodysplastic syndromes are hematologic malignancies with few treatment options and a propensity to transform to acute myeloid leukemia. In this issue of Cell Stem Cell, Sun et al. (2018) report that low SIRT1 levels in myelodysplastic stem cells contribute to aberrant self-renewal through enabling hyperacetylation and reduced activity of TET2.

Reversible Cerebral Vasoconstriction Syndrome Without Typical Thunderclap Headache Complicated by Intracranial Hemorrhage and Posterior Reversible Encephalopathy Syndrome:A Case Report.

PPM1D Mutations Drive Clonal Hematopoiesis in Response to Cytotoxic Chemotherapy.

Clonal hematopoiesis (CH), in which stem cell clones dominate blood production, becomes increasingly common with age and can presage malignancy development. The conditions that promote ascendancy of particular clones are unclear. We found that mutations in PPM1D (protein phosphatase Mn/Mg-dependent 1D), a DNA damage response regulator that is frequently mutated in CH, were present in one-fifth of patients with therapy-related acute myeloid leukemia or myelodysplastic syndrome and strongly correlated with ci...

Molecular Pathogenesis of Acquired Aplastic Anemia.

The application of next generation sequencing (NGS) has enhanced our understanding of the genetic landscape in acquired aplastic anemia (AA). Parallel progress has been in addressing aspects underlying immune dysregulation in disease pathogenesis. Novel insights into the molecular and biologic mechanisms have led to a shift in the paradigm of AA, from a solely autoimmune pathogenic concept toward its recognition as a multifaceted pathophysiology characterized by cytogenetic abnormalities, recurrent somatic ...

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