Mammary Cell News Volume 4.25 | Jun 28 2012

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    Mammary Cell News 4.25 June 28, 2012
    Mammary Cell News
         In this issue: Publications | Industry News | Policy News | Events | Jobs
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    TOP STORY
    Beclin 1 and Autophagy Are Required for the Tumorigenicity of Breast Cancer Stem-Like/Progenitor Cells
    Scientists demonstrated that a prosurvival autophagic pathway is critical for cancer stem-like cell maintenance, and that Beclin 1 plays a dual role in tumor development. [Oncogene] Full Article

    View Lectures, Tools, Protocols and Other Resources on the Human Immunology Portal (www.humanimmunologyportal.com)

    PUBLICATIONS (Ranked by impact factor of the journal)

    LABORATORY RESEARCH

    Control of FLIPL Expression and TRAIL Resistance by the Extracellular Signal-Regulated Kinase1/2 Pathway in Breast Epithelial Cells
    Researchers showed that inhibition of epidermal growth factor receptor (EGFR) signaling in non-transformed breast epithelial cells by EGF deprivation or gefitinib causes the upregulation of the long isoform of caspase-8 inhibitor FLICE-inhibitory protein (FLIPL) and makes these cells more resistant to the tumor necrosis factor-related apoptosis-inducing ligand (TRAIL). [Cell Death Differ] Abstract

    Rational Design of Small Molecule Inhibitors Targeting RhoA Subfamily Rho GTPases
    Researchers suggest that by suppressing RhoA or RhoC activity, Rhosin could inhibit mammary sphere formation by breast cancer cells, suppress invasion of mammary epithelial cells, and induce neurite outgrowth of PC12 cells in synergy with NGF. [Chem Biol] Abstract | Press Release

    Distinct Regulation of Cytoplasmic Calcium Signals and Cell Death Pathways by Different Plasma Membrane Calcium ATPase Isoforms in MDA-MB-231 Breast Cancer Cells
    Scientists assessed the impact of plasma membrane calcium ATPase isoform 1 (PMCA1) and PMCA4 silencing on cytoplasmic free Ca2+ signals and cell viability in MDA-MB-231 breast cancer cells. [J Biol Chem] Abstract | Full Article

    Stable Inhibition of Specific Estrogen Receptor α (ERα) Phosphorylation Confers Increased Growth, Migration/Invasion, and Disruption of Estradiol Signaling in MCF-7 Breast Cancer Cells
    Attenuated phosphorylation of ERα at serines 118 (S118) and S167 significantly affected cellular physiology and behavior in MCF-7 breast cancer cells, resulting in increased growth, migration/invasion, compromised expression of ERα target genes, and markedly altered gene expression patterns. [Endocrinology] Abstract

    The Opposite Effects of Doxorubicin on Bone Marrow Stem Cells versus Breast Cancer Stem Cells Depend on Glucosylceramide Synthase
    Scientists report that, due to the difference of glucosylceramide synthase, catalyzing ceramide glycosylation, doxorubicin eliminates bone marrow stem cells and expands breast cancer stem cells. [Int J Biochem Cell Biol] Abstract

    Measles Virus Selectively Blind to Signaling Lymphocyte Activation Molecule as a Novel Oncolytic Virus for Breast Cancer Treatment
    Researchers used reverse genetics to generate a recombinant measles virus selectively unable to use SLAM (rMV-SLAMblind). They showed that, unlike the MV vaccine strains, rMV-SLAMblind used polio virus receptor-related 4 as a receptor to infect breast cancer cells and not the ubiquitously expressed CD46. [Gene Ther] Abstract

    Hornerin, an S100 Family Protein, Is Functional in Breast Cells and Aberrantly Expressed in Breast Cancer
    Scientists investigated hornerin’s potential role in normal breast cells and breast cancer. [BMC Cancer] Abstract | Full Article

    CLINICAL RESEARCH

    Electrochemotherapy for Large Locoregional Recurrence of Breast Cancer: Results from a Phase II Clinical Trial Showing Efficacy in Heavily Pretreated Patients
    This first phase II study indicated that electrochemotherapy is a promising treatment alternative for cutaneous recurrences of breast cancer. [Acta Oncol] Abstract

    Phase II Trial of Nab-Paclitaxel Compared With Docetaxel as First-Line Chemotherapy in Patients with Metastatic Breast Cancer: Final Analysis of Overall Survival
    A randomized phase II study in first-line metastatic breast cancer demonstrated superior efficacy and safety of weekly nab-paclitaxel compared with docetaxel. Final survival analyses and updated safety results were reported. [Clin Breast Cancer] Abstract

    Complimentary Wallchart: Human Hematopoietic Progenitors. Request Your Copy Today.

    INDUSTRY NEWS

    CHMP Recommends Novartis Drug Afinitor® for EU Approval Marking Major Milestone in the Treatment of Advanced Breast Cancer
    Novartis announced that the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency has adopted a positive opinion for Afinitor® (everolimus) tablets, in combination with exemestane, for the treatment of hormone receptor-positive, HER2/neu-negative advanced breast cancer, in postmenopausal women without symptomatic visceral disease after recurrence or progression following a non-steroidal aromatase inhibitor. [Novartis AG] Press Release

    New Scottish-Californian Stem Cell Research Announced
    Scientists from Heriot-Watt together with their counterparts in St Andrews and Stanford universities are to work together on new medical research that could lead to major breakthroughs for people living with life-threatening conditions. The Heriot-Watt and St Andrews teams will work with research groups at Stanford to examine how stem cells grow and divide and how they change shape to form different types of tissue. [Heriot-Watt University] Press Release

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    POLICY NEWS

    U.K. Panel Backs Open Access for All Publicly Funded Research Papers
    A long-awaited government report in the United Kingdom says open access journals should be “the main vehicle for the publication of research.” But it warns that such a move would cost the United Kingdom more than $80 million per year in publication charges and other costs. [The Working Group on Expanding Access to Published Research Findings, United Kingdom] Press Release

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    European Medicines Agency (European Union)

    Medicines and Healthcare Products Regulatory Agency (United Kingdom)

    Therapeutic Goods Administration (Australia)

    EVENTS

    NEW Gordon Research Conference: Cancer Genetics & Epigenetics
    April 21-26, 2013
    Lucca, Italy

    Visit
    our events page to see a complete list of events in the mammary cell community.

    JOB OPPORTUNITIES

    Research Associate – Chemistry (STEMCELL Technologies, Inc.)

    Research Associate – Particle Chemistry (STEMCELL Technologies, Inc.)

    Research Technologist – Contract Assay Services (STEMCELL Technologies, Inc.)

    Research Technologist – Media Development (STEMCELL Technologies, Inc.)

    Scientist – Epithelial Cell Research (STEMCELL Technologies, Inc.)


    Scientist – Induced Pluripotent Stem Cells (STEMCELL Technologies, Inc.)


    Scientist – hPSC Bioengineering (STEMCELL Technologies Inc.)

    Scientist – Mesenchymal Cell Research (STEMCELL Technologies, Inc.)


    Postdoctoral Position – Gene Regulation in Breast Cancer/Stem Cell Biology (University of Cincinnati)

    Assistant Professor – Oncology/Breast Cancer (University of Chicago)

    Associate Professor – Metastatic Breast Cancer (University of Colorado Comprehensive Cancer Center)

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