Mammary Cell News Volume 15.03 | Jan 26 2023

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    2023-01-26 | MCN 15.03


    Mammary Cell News by STEMCELL Technologies
    Vol. 15.03 – 26 January, 2023
    TOP STORY

    Cullin-5 Deficiency Orchestrates the Tumor Microenvironment to Promote Mammary Tumor Development through CREB1-CCL2 Signaling

    Scientists used both the sleeping beauty transposon mutagenesis system and CRISPR-Cas9–mediated genome-wide screening in mice to identify potential genetic alterations that acted synergistically with breast cancer–associated gene 1 deficiency to promote tumorigenesis.
    [Science Advances]

    Full Article
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    The Pseudokinase NRBP1 Activates Rac1/Cdc42 via P-Rex1 to Drive Oncogenic Signaling in Triple-Negative Breast Cancer

    Researchers determined that expression of the pseudokinase nuclear receptor binding protein 1 (NRBP1) was positively associated with poor prognosis in TNBC and was required for efficient migration, invasion, and proliferation of TNBC cells in culture as well as the growth of TNBC orthotopic xenografts.
    [Oncogene]

    Full Article

    DNA Damage Triggers Squamous Metaplasia in Human Lung and Mammary Cells via Mitotic Checkpoints

    Investigators showed that human lung or mammary cells underwent squamous metaplasia with polyploidization when they were exposed to genotoxic or mitotic drugs.
    [Cell Death Discovery]

    Full Article

    Murine Breast Cancers Disorganize the Liver Transcriptome in a Zonated Manner

    Using spatial transcriptomics, the authors investigated the abundance and zonation of hepatic genes in cancer-bearing mice. They found that breast cancers affected liver zonation in various distinct manners depending on biological pathways.
    [Communications Biology]

    Full Article

    A Truncated and Catalytically Inactive Isoform of KDM5B Histone Demethylase Accumulates in Breast Cancer Cells and Regulates H3K4 Tri-Methylation and Gene Expression

    Researchers showed that histone lysine demethylase (KDM) 5B-N-terminal truncated, accumulated in breast cancer cell lines due to remarkable protein stability relative to the canonical PLU-1 isoform, which showed a much faster turnover.
    [Cancer Gene Therapy]

    Full Article

    Catechol-O-Methyl Transferase Suppresses Cell Invasion and Interplays with MET Signaling in Estrogen Dependent Breast Cancer

    To delineate catechol-O-methyl transferase (COMT) role in metastasis of estrogen receptor dependent breast cancer, scientists investigated the effect of COMT overexpression on invasion, transcriptome, proteome and interactome of MCF7 cells stably transduced with lentiviral vector carrying COMT gene.
    [Scientific Reports]

    Full Article

    Cyperotundone Combined with Adriamycin Induces Apoptosis in MCF-7 and MCF-7/ADR Cancer Cells by ROS Generation and NRF2/ARE Signaling Pathway

    Investigators found that adriamycin (ADR) + cyperotundone (CYT) inhibited the activity of MCF-7 and MCF-7/ADR cells in breast cancer, as well as causing apoptosis in MCF-7 and MCF-7/ADR cells and blocking the cell cycle in the G0/G1 phase.
    [Scientific Reports]

    Full Article

    Deregulation of miR-375 Inhibits HOXA5 and Promotes Migration, Invasion, and Cell Proliferation in Breast Cancer

    Researchers explored the function of miR-375 in breast cancer. MicroRNA-375 targets were predicted by online target prediction tools and found that HOXA5 was one of the potential targets.
    [Applied Biochemistry and Biotechnology]

    Abstract

    Eribulin Treatment Promotes Re-Expression of Estrogen Receptor in Endocrine Therapy-Resistant Hormone Receptor-Positive Breast Cancer Cells

    Scientists established hypoxia-resistant breast cancer cell lines by continuous culture in a hypoxic environment and investigated the effect of eribulin on hormone receptor-positive breast cancer cells that were resistant to endocrine blockade.
    [Anticancer Research]

    Abstract
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    REVIEWS

    Metaplastic Breast Cancer: A Review

    The authors synthesize the existing data on the clinical, pathological and genomic features, management, and outcomes of metaplastic breast cancer. They also identify potential targets for future clinical trials.
    [Critical Reviews in Oncology/Hematology]

    AbstractGraphical Abstract
    INDUSTRY AND POLICY NEWS

    Scientists behind Breast Cancer Gene Discovery Honored with New Plaques

    The team of 41 scientists who made a ground-breaking gene discovery of the BRCA2 cancer gene in 1995, transforming the field of cancer research, have been celebrated with the unveiling of two commemorative plaques in London.
    [The Institute of Cancer Research]

    Press Release
    FEATURED EVENT

    AACR Annual Meeting 2023

    April 14 – 19, 2023
    Orlando, Florida, United States

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    JOB OPPORTUNITIES

    Medical Science Liaison – Breast/GYN

    Novartis – Atlanta, Georgia, United States

    Postdoctoral Fellowship – Breast Cancer

    Umeå University – Umeå, Sweden

    Research Associate – CAR T Immunotherapy

    Imperial College London – London, England, United Kingdom

    Postdoctoral Position – Spatial Omics Analysis

    European Molecular Biology Laboratory – Heidelberg, Germany

    Postdoctoral Training Fellow – Cancer Bioinformatics

    Institute of Cancer Research – London, England, United Kingdom

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