Mammary Cell News Volume 14.10 | Mar 17 2022

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    2022-03-17 | MCN 14.10


    Mammary Cell News by STEMCELL Technologies
    Vol. 14.10 – 17 March, 2022
    TOP STORY

    Cancer Stem Cell Regulated Phenotypic Plasticity Protects Metastasized Cancer Cells from Ferroptosis

    Investigators demonstrated that the breast cancer stem cell secretome autonomously compressed the stem cell population.
    [Nature Communications]

    Full Article
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    Deubiquitination of MYC by OTUB1 Contributes to HK2 Mediated Glycolysis and Breast Tumorigenesis

    The mechanisms underlying MYC deubiquitination in breast cancer were not well defined. Researchers reported that OTUB1 was responsible for MYC deubiquitination.
    [Cell Death & Differentiation]

    Abstract

    A Novel HIF-2α Targeted Inhibitor Suppresses Hypoxia-Induced Breast Cancer Stemness via SOD2-mtROS-PDI/GPR78-UPRER Axis

    Investigators illustrated that HIF-2α induced stemness in breast cancers under hypoxia through the SOD2-mtROS-PDI/GRP78-UPRER pathway, linking mitochondrial metabolic state to endoplasmic reticulum response via mitochondrial reactive oxygen species (mtROS) level.
    [Cell Death & Differentiation]

    Full Article

    PRMT5 Regulates RNA M6A Demethylation for Doxorubicin Sensitivity in Breast Cancer

    Scientists found that doxorubicin treatment significantly induced RNA N6-methyladenosine (m6A) methylation in breast cancer cells in both a dose- and time-dependent manner.
    [Molecular Therapy]

    AbstractGraphical Abstract

    SIK2 Maintains Breast Cancer Stemness by Phosphorylating LRP6 and Activating Wnt/β-Catenin Signaling

    Knockdown of salt-inducible kinase 2 (SIK2) expression reduced the proportion of breast cancer (BC) stem cells and the tumor initiation of BC cells.
    [Oncogene]

    Abstract

    Spatial Collagen Stiffening Promotes Collective Breast Cancer Cell Invasion by Reinforcing Extracellular Matrix Alignment

    Using organotypic models from mouse invasive ductal and invasive lobular breast cancers, researchers showed that increased collagen bundling in 3D induced a generic increase in breast cancer invasion that was independent of migration mode.
    [Oncogene]

    Full Article

    CCL18 Promotes Breast Cancer Progression by Exosomal MiR-760 Activation of ARF6/Src/PI3K/Akt Pathway

    MiRNAs that targeted ADP-ribosylation factor 6 (ARF6) were predicted and selected in high metastatic breast cancer cells treated with C–C motif chemokine ligand 18 (CCL18).
    [Molecular Therapy Oncolytics]

    AbstractGraphical Abstract

    YTHDF1 Promotes Breast Cancer Cell Growth, DNA Damage Repair, and Chemoresistance

    YTHDF1 facilitated S-phase entry, DNA replication and DNA damage repair, and accordingly YTHDF1 knockdown sensitized breast cancer cells to Adriamycin and Cisplatin as well as Olaparib, a poly ADP ribose polymerase inhibitor.
    [Cell Death & Disease]

    Full Article

    Zinc Complex of 3,5-Di-Tert-Butyl Salicylate Inhibits Viability, Migration, and Invasion in Triple-Negative Breast Cancer Cells

    Investigators found that the zinc complex of 3,5-di-tert-butyl salicylate compound inhibited viability, invasion, and migration and induced apoptosis in TNBC 4T1 cells.
    [Scientific Reports]

    Full Article

    Circ-TFF1 Promotes Breast Cancer Progression Through the MiR-129-2-3p/IRAK1 Axis

    Circular RNA-trefoil factor 1 (circ-TFF1) and interleukin-1 receptor-associated kinase 1 (IRAK1) were highly expressed in breast cancer tissues and cells. While the silencing of circ-TFF1 reduced the proliferation, migration, invasion and tube formation, it increased the apoptosis of MDA-MB-361 and SK-Br-3 cells.
    [Biochemical Genetics]

    Abstract
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    REVIEWS

    IL-6/JAK/STAT3 Signaling in Breast Cancer Metastasis: Biology and Treatment

    The authors cover the current biological understanding of the interleukin-6 (IL-6) signaling pathway and its impact on breast cancer metastasis, as well as therapeutic interventions that target components of the IL-6 pathway.
    [Frontiers in Oncology]

    Full Article
    INDUSTRY AND POLICY NEWS

    LYNPARZA® (olaparib) Reduced Risk of Death by 32% in Patients With Germline BRCA-Mutated, HER2-Negative High-Risk Early Breast Cancer in Phase III OlympiA Trial

    AstraZeneca and Merck announced additional positive results from the Phase III OlympiA trial, where LYNPARZA demonstrated a statistically significant improvement in overall survival for the treatment of high-risk early breast cancer.
    [Merck]

    Press Release
    FEATURED EVENT

    13th Online Dutch Stem Cell Meeting

    April 16, 2022
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    JOB OPPORTUNITIES

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    Case Western Reserve University – Cleveland, OH, United States

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    Institute of Cancer Research – London, England, United Kingdom

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    Diagnostisk Center, Rigshospitalet – Copenhagen, Denmark

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    Institute of Cancer Research – London, England, United Kingdom

    Postdoctoral Position – Breast Cancer Precision Oncology

    German Cancer Research Center in the Helmholtz Association – Heidelberg, German

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