Mammary Cell News Volume 4.46 | Nov 22 2012

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    Mammary Cell News 4.46 November 22, 2012
    Mammary Cell News
         In this issue: Publications | Reviews Industry News | Policy News | Events | Jobs
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    TOP STORY
    Host Epithelial Geometry Regulates Breast Cancer Cell Invasiveness
    Researchers explored how the biophysical characteristics of the host microenvironment affect the proliferative and invasive tumor phenotype of the earliest stages of tumor development, by using a 3D microfabrication-based approach to engineer ducts composed of normal mammary epithelial cells that contained a single tumor cell. [Proc Natl Acad Sci USA] Abstract | Full Article

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    PUBLICATIONS (Ranked by impact factor of the journal)

    LABORATORY RESEARCH

    A Preclinical Mouse Model of Invasive Lobular Breast Cancer Metastasis
    The authors report the development of a mouse model of spontaneous breast cancer metastasis which recapitulates key events in its formation and clinical course. [Cancer Res] Abstract

    Tumor Associated Macrophages Regulate Murine Breast Cancer Stem Cells through a Novel Paracrine EGFR/Stat3/Sox-2 Signaling Pathway
    Scientists report that tumor-associated macrophages promote cancer stem cell-like phenotypes in murine breast cancer cells by upregulating their expression of Sox-2. [Stem Cells] Abstract

    Targeting CXCR1/2 Significantly Reduces Breast Cancer Stem Cell Activity and Increases the Efficacy of Inhibiting HER2 via HER2-Dependent and -Independent Mechanisms
    The authors investigated the role of interleukin-8 in the regulation of cancer stem-like cells activity using patient-derived breast cancers and determined the potential benefit of combining CXCR1/2 inhibition with HER2-targeted therapy. [Clin Cancer Res] Abstract

    CLOCK Is a Substrate of SUMO and Sumoylation of CLOCK Upregulates the Transcriptional Activity of Estrogen Receptor-α
    Scientists showed that circadian locomotor output cycles kaput (CLOCK), a key circadian protein, can interact with estrogen receptor-α. Furthermore, this interaction was enhanced by estrogen. [Oncogene] Abstract

    Class IIa HDACs Repressive Activities on MEF2-Dependent Transcription Are Associated with Poor Prognosis of ER+ Breast Tumors
    The authors found that class IIa HDACs are heterogeneously expressed and display redundant activities in breast cancer cells. [FASEB J] Abstract

    TCPTP Regulates Src Family Protein Tyrosine Kinases and STAT3 Signaling and Is Lost in Triple Negative Breast Cancers
    Scientists report that TCPTP protein levels are decreased in a subset of breast cancer cell lines in vitro and that TCPTP protein is absent in a large proportion of ‘triple negative’ primary human breast cancers. [Mol Cell Biol] Abstract

    Loss of Pigment Epithelium-Derived Factor: A Novel Mechanism for the Development of Endocrine Resistance in Breast Cancer
    The authors investigated the role of pigment epithelium-derived factor in the development of endocrine resistance in breast cancer. [Breast Cancer Res] Abstract | Full Article

    Heparins Modulate the IFN-γ-Induced Production of Chemokines in Human Breast Cancer Cells
    Researchers tested whether heparins had an impact on the chemokines CXCL9 and CXCL10 as well as the IFN-γ signaling in human breast cancer cells in vitro. [Breast Cancer Res Treat] Abstract

    CLINICAL RESEARCH

    Risk of Metachronous Breast Cancer after BRCA Mutation-Associated Ovarian Cancer
    The authors sought to estimate the risk of breast cancer after a diagnosis of ovarian cancer associated with mutation of the BRCA1/2 (breast cancer, early onset) genes. [Cancer] Abstract

    The Risk of Primary and Contralateral Breast Cancer after Ovarian Cancer in BRCA1/BRCA2 Mutation Carriers
    The objective of this study was to assess the incidence of primary breast cancer and contralateral breast cancer in patients who had BRCA1/BRCA2-associated epithelial ovarian cancer. [Cancer] Abstract

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    REVIEWS

    Management of the Axilla in Early Breast Cancer Patients in the Genomic Era
    Because the integration of novel surgical management and tumor biology is needed, the authors provide an overview of the current challenges that a more detailed knowledge of tumor biology has brought to early breast cancer staging and treatment. [Ann Oncol] Abstract

    Stat5 in Breast Cancer: Potential Oncogenic Activity Coincides with Positive Prognosis for the Disease
    Nuclear localization of signal transducer and activator of transcription (Stat) 5 marks good prognosis in estrogen receptor/progesterone receptor-positive breast tumors. [Carcinogenesis] Abstract

    INDUSTRY NEWS

    Caliber and ImmunGene Launch Valor Biotherapeutics, a Joint Venture to Develop Antibody-Interferon Fusion Therapeutics to Treat Cancers
    Valor will combine the assets and resources of Caliber with ImmunGene’s technologies, know-how, and intellectual property (IP). ImmunGene will grant Valor exclusive licenses to its IP for three monoclonal antibody-interferon fusion product candidates in various stages of preclinical development. Caliber will commit sufficient funds to enable Valor to reach certain development milestones for these compounds in the treatment of non-Hodgkin’s lymphoma, multiple myeloma, and breast cancer. [PR Newswire Association LLC] Press Release

    Colby and MannKind Sign License and Joint Development Agreement to Develop and Commercialize Cancer Immunotherapy Products
    Colby Pharmaceutical Company and MannKind Corporation announced a license agreement granting Colby exclusive worldwide rights to develop and commercialize disease-specific antigen compounds and intra-lymph node delivery technologies from MannKind’s novel MKC1106 active immunotherapy programs, which are currently being developed for the treatment of melanoma, prostate, hematological disorders and other human cancers. [MannKind Corporation] Press Release

    POLICY NEWS

    National Institutes of Health (United States)

    Food and Drug Administration (United States)

    Center for Biologics Evaluation and Research (United States)

    European Medicines Agency (European Union)

    Medicines and Healthcare Products Regulatory Agency (United Kingdom)

    Therapeutic Goods Administration (Australia)

    EVENTS

    NEW Keystone Symposia: Tumor Metabolism
    Keystone, United States
    February 24-March 1, 2013

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

    JOB OPPORTUNITIES

    Product Quality Scientist (STEMCELL Technologies, Inc.)

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

    Research Technologist – Cell Separation (STEMCELL Technologies, Inc.)

    Scientist or Engineer – hPSC Bioengineer (STEMCELL Technologies, Inc.)

    Quality Control Analyst (STEMCELL Technologies, Inc.)

    Postdoctoral Position – Tumor Stem Cells (Cancer Institute of New Jersey)

    Laboratory Heads – Developmental Biology and Stem Cell Biology (RIKEN Center for Developmental Biology)

    Postdoctoral Fellow – Cancer Genomics (Mayo Clinic Florida)

    Assistant Professor – Breast Cancer (Cedars-Sinai Medical Center)

    Principal Investigator – Cancer Research (Institut de Recherches Cliniques de Montréal)

    Postdoctoral Position – Genetic Biomarkers in Breast Cancer (Rush University Medical Center)


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