Hematopoiesis News Volume 5.41 | Oct 28 2014

The Notch Driven Long Non-Coding RNA Repertoire in T-Cell Acute Lymphoblastic Leukemia
Scientists aimed to establish a comprehensive compendium of the long non-coding RNA transcriptome under control of Notch signaling. For this purpose, they measured the transcriptional response of all protein coding genes and long non-coding RNAs upon pharmacological Notch inhibition in the human T-cell acute lymphoblastic leukemia cell line CUTLL1 using RNA-sequencing. [Haematologica] Abstract | Full Article

Design of a 2D No-Flow Chamber to Monitor Hematopoietic Stem Cells
Scientists describe a large array of 2D no-flow chambers allowing the monitoring of single hematopoietic stem cells (HSCs) for several days. This allowed them to stain live human HSCs with fluorescent primary antibodies in order to reveal their stage in the hematopoiesis differentiation pathway. [Lab Chip] Abstract

HDAC1 and Klf4 Interplay Critically Regulates Human Myeloid Leukemia Cell Proliferation
Researchers found that histone deacetylase 1 (HDAC1) expression was negatively correlated with that of Krüppel-like factor 4 (Klf4) and that acute myeloid leukemia patients with lower HDAC1 level had better prognosis. [Cell Death Dis] Full Article

Latexin Sensitizes Leukemogenic Cells to Gamma-Irradiation-Induced Cell-Cycle Arrest and Cell Death through Rps3 Pathway
Whether latexin (Lxn) functions as a tumor suppressor in leukemia and what molecular and cellular mechanisms are involved are unknown. In this study, the myeloid leukemogenic FDC-P1 cell line was used as a model system and Lxn was ectopically expressed in these cells. [Cell Death Dis] Full Article

Heparanase Polymorphisms: Influence on Incidence of Hepatic Sinusoidal Obstruction Syndrome in Children Undergoing Allogeneic Hematopoietic Stem Cell Transplantation
Researchers identified an association between heparanase single nucleotide polymorphisms and sinusoidal obstruction syndrome in children undergoing allogeneic hematopoietic stem cell transplantation. [J Cancer Res Clin Oncol] Abstract

Potent Antitumor Activity of the Ad5/11 Chimeric Oncolytic Adenovirus Combined with Interleukin-24 for Acute Myeloid Leukemia via Induction of Apoptosis
Researchers evaluated whether chimeric oncolytic adenovirus-mediated transfer of the human interleukin-24 (hIL-24) gene induces enhanced antitumor potency. They show that the Ad5/11 chimeric oncolytic adenovirus carrying hIL-24 produced high levels of hIL-24 in acute myeloid leukemia cancer cells, as compared with the Ad5 oncolytic adenovirus expressing hIL-24. [Oncol Rep] Abstract

Multipotent Hematopoietic Progenitors Divide Asymmetrically to Create Progenitors of the Lymphomyeloid and Erythromyeloid Lineages
After showing that HC7 binding does not recognizably affect biological features of human hematopoietic stem and progenitor cells (HSPCs), researchers studied asymmetric cell divisions in different HSPC subtypes and determined the developmental potential of arising daughter cells at the single-cell level. [Stem Cell Rep]
Full Article | Graphical Abstract

CLINICAL RESEARCH

Age-Related Mutations Associated with Clonal Hematopoietic Expansion and Malignancies
Researchers analyzed blood-derived sequence data from 2,728 individuals from The Cancer Genome Atlas and discovered 77 blood-specific mutations in cancer-associated genes, the majority being associated with advanced age. 83% of these mutations were from 19 leukemia and/or lymphoma-associated genes, and nine were recurrently mutated. [Nat Med] Abstract | Press Release

Results of Phase II Randomized Study of Low-Dose Decitabine with or without Valproic Acid in Patients with Myelodysplastic Syndrome and Acute Myelogenous Leukemia
Investigators evaluated the possible benefit of adding valproic acid, an histone deacetylase inhibitor, to decitabine in the treatment of myelodysplastic syndrome and acute myeloid leukemia. [Cancer] Abstract

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NeoGenomics Is First to Offer Molecular Testing for Resistance to Bruton Tyrosin Kinase Inhibitors for Chronic Lymphocytic Leukemia
NeoGenomics, Inc. announced that it has launched new tests for the detection of mutations in the Bruton tyrosine kinase (BTK) and PLC-gama2 genes for predicting acquired resistance to BTK inhibitors. [NeoGenomics, Inc.] Press Release

The Leukemia & Lymphoma Society Launches New Initiative to Halt the Progression of Myeloid Blood Cancers
The Leukemia & Lymphoma Society has initiated a program to fund research projects seeking to better understand and, ultimately, stop progression of certain types of blood cancers from early-stage malignancies to much more lethal states of disease. [The Leukemia & Lymphoma Society (PR Newswire Association LLC)] Press Release

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Postdoctoral Research Associate – Mechanisms Underlying Hematopoiesis and Leukemogenesis (University of Wisconsin School of Medicine and Public Health)

Postdoctoral Position – Hematopoietic Stem and Progenitor Cell Biology (Lund University)

Postdoctoral Position – Molecular Properties of Leukemic Stem Cells (BC Cancer Agency)

Postdoctoral Position – Regenerative Effects of Some Mutations on Hematopoietic Stem Cells (Istanbul University Institute of Experimental Medicine)

Postdoctoral Fellow – Hematopoietic Stem Cells and Signaling Transduction (University of Pennsylvania)

Stem Cell Biology Program Director (Blood Research Institute of BloodCenter of Wisconsin)

Research Associate – Cancer, Stem Cells, and Immunity Focusing on Membrane Proteins and Signaling Pathways (UT Southwestern Medical Center)

Postdoctoral Positions – Hematopoietic and Induced Pluripotent Stem Cells (Indiana University School of Medicine)

Scientist – Pluripotent Stem Cell Media Development, High Throughput Screening (STEMCELL Technologies Inc.)

Scientist – Cell Culture Support Products (STEMCELL Technologies Inc.)

Scientist – Immunology/Cell Separation (STEMCELL Technologies Inc.)

Research Associate – Cell Separation (STEMCELL Technologies Inc.)

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