Updates from ASCO 2015 - Don't Miss This Huge Issue of Mammary Cell News!
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- Published: 05 June 2015
PUBLICATIONS(Ranked by impact factor of the journal)
LABORATORY RESEARCH
Oncogenic PI3K and K-Ras Stimulate De Novo Lipid Synthesis through mTORC1 and SREBP
Oncogenic stimulation of mechanistic target of rapamycin complex 1 (mTORC1) signaling in an isogenic setting or a panel of eight breast cancer cell lines led to activation of the sterol regulatory element-binding proteins (SREBPs) that are required for oncogene-induced lipid synthesis. The SREBPs are also required for the growth factor-independent growth and proliferation of oncogene-expressing cells. [Oncogene] Abstract
Induction of miRNA-181a by Genotoxic Treatments Promotes Chemotherapeutic Resistance and Metastasis in Breast Cancer
The authors showed that genotoxic treatments significantly increased the expression of miR-181a in triple negative breast cancer (TNBC) cells, which enhanced TNBC cell survival and metastasis upon doxorubicin treatment. [Oncogene] Abstract
MERIT40 Is an Akt Substrate that Promotes Resolution of DNA Damage Induced by Chemotherapy
Scientists identified a mechanism by which the PI3K/Akt pathway mediates resistance to doxorubicin. In addition to inducing DNA damage, doxorubicin triggers sustained activation of Akt signaling in breast cancer cells. [Cell Rep] Full Article | Graphical Abstract
Histone Deacetylase Inhibitor Entinostat Inhibits Tumor-Initiating Cells in Triple Negative Breast Cancer Cells
Investigators showed that entinostat (ENT) treatment can reduce the percentage of tumor-initiating cells (TICs) from triple negative breast cancer cells. ENT treatment was able to reduce the CD44high/CD24low cell population, ALDH-1 activity as well as protein and mRNA expression of known TIC markers such as Bmi-1, Nanog and Oct-4. [Mol Cancer Ther] Abstract
CD24+ Cells Fuel Rapid Tumor Growth and Display High Metastatic Capacity
Researchers demonstrated that CD24+ cells create intra-tumor heterogeneity, and display highly metastatic properties. The cells formed mammospheres in high efficiency and CD24+ tumors displayed rapid growth in both WT and MKR mice, and were more metastatic than CD24− cells. [Breast Cancer Res] Abstract | Full Article
Ubiquitin Specific Protease 2 Acts as a Key Modulator for the Regulation of Cell Cycle by Adiponectin and Leptin in Cancer Cells
Scientists investigated the effects of adiponectin and leptin on ubiquitin specific protease-2 (USP-2) expression and its potential role in the modulation of cell cycle. Treatment with globular adiponectin decreased, whereas leptin increased USP-2 expression both in human hepatoma and breast cancer cells. [Mol Cell Endocrinol]Abstract
Down-Regulation of Programmed Cell Death 4 (PDCD4) Is Associated with Aromatase Inhibitor Resistance and a Poor Prognosis in Estrogen Receptor-Positive Breast Cancer
Researchers determined PDCD4 expression levels in aromatase inhibitor (AI)-resistant breast cancer cell lines and estrogen receptor-positive breast cancer tumors and investigated the regulation of PDCD4 in AI-resistant breast cancer cell lines. [Breast Cancer Res Treat] Abstract
p53 Modulates Notch Signaling in MCF-7 Breast Cancer Cells by Associating with the Notch Transcriptional Complex via MAML1
The authors studied the regulation of Notch signaling by p53 in MCF-7 cells and normal human mammary epithelial cells. [J Cell Physiol] Abstract
AP4 Activates Cell Migration and EMT Mediated by p53 in MDA-MB-231 Breast Carcinoma Cells
It has been found that activating enhancer-binding protein (AP4) upregulates the genes involved in EMT and cell proliferation in colorectal cancer cells and that the aggressive human breast cancer cells MDA-MB-231 are highly metastatic. Therefore, investigators tested the hypothesis that AP4 may also affect cell migration and EMT in this cell type. [Mol Cell Biochem] Abstract
CLINICAL RESEARCH
Palbociclib in Hormone-Receptor-Positive Advanced Breast Cancer
This Phase III study involved 521 patients with advanced hormone-receptor-positive, human epidermal growth factor receptor 2-negative breast cancer that had relapsed or progressed during prior endocrine therapy. Investigators randomly assigned patients in a 2:1 ratio to receive palbociclib and fulvestrant or placebo and fulvestrant. [N Engl J Med] Full Article | Press Release
Adjuvant Denosumab in Breast Cancer (ABCSG-18): A Multicenter, Randomized, Double-Blind, Placebo-Controlled Trial
In this double-blind, placebo-controlled, Phase III trial, postmenopausal patients with early hormone receptor-positive breast cancer receiving treatment with aromatase inhibitors were randomly assigned in a 1:1 ratio to receive either denosumab 60 mg or placebo administered subcutaneously every six months in 58 trial centres in Austria and Sweden. [Lancet] Abstract | Press Release
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REVIEWS |
The Story of MCF-7 Breast Cancer Cell Line: 40 Years of Experience in Research Visit our reviews page to see a complete list of reviews in the mammary cell research field. |
SCIENCE NEWS |
New Enzalutamide Data in Triple-Negative Breast Cancer Presented Puma Biotechnology Announces Phase III Trial of PB272 in Extended Adjuvant Breast Cancer (ExteNET Trial) Demonstrates Statistically Significant Improvement in Disease Free Survival Oncothyreon Announces Presentation of Positive ONT-380 Data in HER2-Positive Breast Cancer and Updates Development Plan Anastrozole Prevents Recurrence More than Tamoxifen in Some with Noninvasive Breast Cancer Pfizer Announces Palbociclib More than Doubled Progression-Free Survival in Phase III Trial for Patients with HR+, HER2− Metastatic Breast Cancer Whose Disease Has Progressed Following Endocrine Therapy MacroGenics Presents Updated Data from Phase I Study of Margetuximab e=This email address is being protected from spambots. You need JavaScript enabled to view it.
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INDUSTRY NEWS |
Amgen Announces Collaboration with Roche on Cancer Immunotherapy Study with Investigational Medicines Talimogene Laherparepvec and Atezolizumab TESARO and Merck to Collaborate on a Combination Study of Niraparib and KEYTRUDA®(Pembrolizumab) ASCO Launches First-Ever Clinical Trial: Aims to Learn from Patients with Advanced Cancer Who Lack Standard Treatment Options Innovative Health Research at Otago Receives Major Funding |
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 2nd International Symposium of the Cancer Research Center of Lyon (CRCL) Visit our events page to see a complete list of events in the mammary cell community. |
JOB OPPORTUNITIES |
NEW Academic Breast Pathologist (Brigham & Women's Hospital) Research Associate - Cell Separation (STEMCELL Technologies Inc.) Assistant/Associate/Full Professor - Oncology (Shanghai Jiao Tong University School of Medicine) Postdoctoral Research Assistant - Role of BRCA1 in the Repair of DNA Damage (University of Dundee) Postdoctoral Position - Malignant Breast Cancer Cells in the Bone Marrow Microenvironment (Duke University) Postdoctoral Position - Fatty Acid Metabolism Inhibition on Chemoresistant TNBC Models (University of Girona) Postdoctoral Fellow - Regulation of Growth and Survival of Breast Cancer Cells (Icahn School of Medicine at Mount Sinai) Postdoctoral Technician - Prostate/Breast Cancer (Baylor College of Medicine) Postdoctoral Research Fellow/Instructor - Prostate/Breast Cancer (Baylor College of Medicine) Postdoctoral Positions - Molecular Cancer Biology (University of Pennsylvania)
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