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  • Cell Line, Tumor  (4)
  • Nature Publishing Group (NPG)  (4)
  • American Geophysical Union (AGU)
  • Cambridge University Press
  • Springer
  • 2005-2009  (4)
  • 1935-1939
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  • 1
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    Pten in stromal fibroblasts suppresses mammary epithelial tumours (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-10-23
    Description: The tumour stroma is believed to contribute to some of the most malignant characteristics of epithelial tumours. However, signalling between stromal and tumour cells is complex and remains poorly understood. Here we show that the genetic inactivation of Pten in stromal fibroblasts of mouse mammary glands accelerated the initiation, progression and malignant transformation of mammary epithelial tumours. This was associated with the massive remodelling of the extracellular matrix (ECM), innate immune cell infiltration and increased angiogenesis. Loss of Pten in stromal fibroblasts led to increased expression, phosphorylation (T72) and recruitment of Ets2 to target promoters known to be involved in these processes. Remarkably, Ets2 inactivation in Pten stroma-deleted tumours ameliorated disruption of the tumour microenvironment and was sufficient to decrease tumour growth and progression. Global gene expression profiling of mammary stromal cells identified a Pten-specific signature that was highly represented in the tumour stroma of patients with breast cancer. These findings identify the Pten-Ets2 axis as a critical stroma-specific signalling pathway that suppresses mammary epithelial tumours.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2767301/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2767301/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trimboli, Anthony J -- Cantemir-Stone, Carmen Z -- Li, Fu -- Wallace, Julie A -- Merchant, Anand -- Creasap, Nicholas -- Thompson, John C -- Caserta, Enrico -- Wang, Hui -- Chong, Jean-Leon -- Naidu, Shan -- Wei, Guo -- Sharma, Sudarshana M -- Stephens, Julie A -- Fernandez, Soledad A -- Gurcan, Metin N -- Weinstein, Michael B -- Barsky, Sanford H -- Yee, Lisa -- Rosol, Thomas J -- Stromberg, Paul C -- Robinson, Michael L -- Pepin, Francois -- Hallett, Michael -- Park, Morag -- Ostrowski, Michael C -- Leone, Gustavo -- P01 CA097189/CA/NCI NIH HHS/ -- P01 CA097189-050002/CA/NCI NIH HHS/ -- P01CA097189/CA/NCI NIH HHS/ -- R01 CA053271/CA/NCI NIH HHS/ -- R01 CA085619/CA/NCI NIH HHS/ -- R01 CA085619-05/CA/NCI NIH HHS/ -- R01 CA121275/CA/NCI NIH HHS/ -- R01 CA121275-02/CA/NCI NIH HHS/ -- R01 HD047470/HD/NICHD NIH HHS/ -- R01 HD047470-05/HD/NICHD NIH HHS/ -- R01CA053271/CA/NCI NIH HHS/ -- R01CA85619/CA/NCI NIH HHS/ -- R01HD47470/HD/NICHD NIH HHS/ -- England -- Nature. 2009 Oct 22;461(7267):1084-91. doi: 10.1038/nature08486.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics, College of Biological Sciences, The Ohio State University, Columbus, Ohio 43210, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19847259" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breast Neoplasms/*metabolism/*pathology ; Cell Line, Tumor ; Cell Proliferation ; Cell Transformation, Neoplastic ; Extracellular Matrix/metabolism ; Fibroblasts/*metabolism ; Gene Deletion ; Gene Expression Regulation, Neoplastic ; Humans ; Immunity, Innate ; Mammary Neoplasms, Experimental/metabolism/pathology ; Mice ; Mice, Transgenic ; Neoplasms, Glandular and Epithelial/*metabolism/*pathology ; PTEN Phosphohydrolase/deficiency/genetics/*metabolism ; Proto-Oncogene Protein c-ets-2/deficiency/metabolism ; Stromal Cells/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    c-Myc suppression of miR-23a/b enhances mitochondrial glutaminase expression and glutamine metabolism (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-02-17
    Description: Altered glucose metabolism in cancer cells is termed the Warburg effect, which describes the propensity of most cancer cells to take up glucose avidly and convert it primarily to lactate, despite available oxygen. Notwithstanding the renewed interest in the Warburg effect, cancer cells also depend on continued mitochondrial function for metabolism, specifically glutaminolysis that catabolizes glutamine to generate ATP and lactate. Glutamine, which is highly transported into proliferating cells, is a major source of energy and nitrogen for biosynthesis, and a carbon substrate for anabolic processes in cancer cells, but the regulation of glutamine metabolism is not well understood. Here we report that the c-Myc (hereafter referred to as Myc) oncogenic transcription factor, which is known to regulate microRNAs and stimulate cell proliferation, transcriptionally represses miR-23a and miR-23b, resulting in greater expression of their target protein, mitochondrial glutaminase, in human P-493 B lymphoma cells and PC3 prostate cancer cells. This leads to upregulation of glutamine catabolism. Glutaminase converts glutamine to glutamate, which is further catabolized through the tricarboxylic acid cycle for the production of ATP or serves as substrate for glutathione synthesis. The unique means by which Myc regulates glutaminase uncovers a previously unsuspected link between Myc regulation of miRNAs, glutamine metabolism, and energy and reactive oxygen species homeostasis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2729443/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2729443/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gao, Ping -- Tchernyshyov, Irina -- Chang, Tsung-Cheng -- Lee, Yun-Sil -- Kita, Kayoko -- Ochi, Takafumi -- Zeller, Karen I -- De Marzo, Angelo M -- Van Eyk, Jennifer E -- Mendell, Joshua T -- Dang, Chi V -- N01-HV-28180/HV/NHLBI NIH HHS/ -- P50CA58236/CA/NCI NIH HHS/ -- R01 CA057341/CA/NCI NIH HHS/ -- R01 CA057341-17/CA/NCI NIH HHS/ -- R01 CA120185/CA/NCI NIH HHS/ -- R01 CA120185-01A2/CA/NCI NIH HHS/ -- R01 CA120185-02/CA/NCI NIH HHS/ -- R01 CA120185-03/CA/NCI NIH HHS/ -- R01 HL085434/HL/NHLBI NIH HHS/ -- R01 HL085434-01A2/HL/NHLBI NIH HHS/ -- R01CA051497/CA/NCI NIH HHS/ -- R01CA120185/CA/NCI NIH HHS/ -- R01CA57341/CA/NCI NIH HHS/ -- R37 CA051497/CA/NCI NIH HHS/ -- R37 CA051497-17/CA/NCI NIH HHS/ -- England -- Nature. 2009 Apr 9;458(7239):762-5. doi: 10.1038/nature07823. Epub 2009 Feb 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA. pgao2@jhmi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19219026" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Untranslated Regions/metabolism ; Cell Line, Tumor ; *Gene Expression Regulation, Enzymologic ; Glutaminase/*metabolism ; Glutamine/*metabolism ; Humans ; MicroRNAs/*metabolism ; Mitochondria/*enzymology ; Proto-Oncogene Proteins c-myc/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
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    Metabolomic profiles delineate potential role for sarcosine in prostate cancer progression (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-02-13
    Description: Multiple, complex molecular events characterize cancer development and progression. Deciphering the molecular networks that distinguish organ-confined disease from metastatic disease may lead to the identification of critical biomarkers for cancer invasion and disease aggressiveness. Although gene and protein expression have been extensively profiled in human tumours, little is known about the global metabolomic alterations that characterize neoplastic progression. Using a combination of high-throughput liquid-and-gas-chromatography-based mass spectrometry, we profiled more than 1,126 metabolites across 262 clinical samples related to prostate cancer (42 tissues and 110 each of urine and plasma). These unbiased metabolomic profiles were able to distinguish benign prostate, clinically localized prostate cancer and metastatic disease. Sarcosine, an N-methyl derivative of the amino acid glycine, was identified as a differential metabolite that was highly increased during prostate cancer progression to metastasis and can be detected non-invasively in urine. Sarcosine levels were also increased in invasive prostate cancer cell lines relative to benign prostate epithelial cells. Knockdown of glycine-N-methyl transferase, the enzyme that generates sarcosine from glycine, attenuated prostate cancer invasion. Addition of exogenous sarcosine or knockdown of the enzyme that leads to sarcosine degradation, sarcosine dehydrogenase, induced an invasive phenotype in benign prostate epithelial cells. Androgen receptor and the ERG gene fusion product coordinately regulate components of the sarcosine pathway. Here, by profiling the metabolomic alterations of prostate cancer progression, we reveal sarcosine as a potentially important metabolic intermediary of cancer cell invasion and aggressivity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2724746/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2724746/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sreekumar, Arun -- Poisson, Laila M -- Rajendiran, Thekkelnaycke M -- Khan, Amjad P -- Cao, Qi -- Yu, Jindan -- Laxman, Bharathi -- Mehra, Rohit -- Lonigro, Robert J -- Li, Yong -- Nyati, Mukesh K -- Ahsan, Aarif -- Kalyana-Sundaram, Shanker -- Han, Bo -- Cao, Xuhong -- Byun, Jaeman -- Omenn, Gilbert S -- Ghosh, Debashis -- Pennathur, Subramaniam -- Alexander, Danny C -- Berger, Alvin -- Shuster, Jeffrey R -- Wei, John T -- Varambally, Sooryanarayana -- Beecher, Christopher -- Chinnaiyan, Arul M -- K99 CA129565/CA/NCI NIH HHS/ -- K99 CA129565-01A1/CA/NCI NIH HHS/ -- R01 CA133458/CA/NCI NIH HHS/ -- U01 CA111275/CA/NCI NIH HHS/ -- U01 CA111275-04/CA/NCI NIH HHS/ -- England -- Nature. 2009 Feb 12;457(7231):910-4. doi: 10.1038/nature07762.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Michigan Center for Translational Pathology, Ann Arbor, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19212411" target="_blank"〉PubMed〈/a〉
    Keywords: Androgens/physiology ; Cell Line ; Cell Line, Tumor ; *Disease Progression ; Gene Knockdown Techniques ; Glycine N-Methyltransferase/genetics/metabolism ; Humans ; Male ; *Metabolomics ; Prostatic Neoplasms/enzymology/genetics/*metabolism ; Sarcosine/analysis/*metabolism/urine ; Sarcosine Dehydrogenase/metabolism ; Signal Transduction
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 4
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    Complex landscapes of somatic rearrangement in human breast cancer genomes (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-12-25
    Description: Multiple somatic rearrangements are often found in cancer genomes; however, the underlying processes of rearrangement and their contribution to cancer development are poorly characterized. Here we use a paired-end sequencing strategy to identify somatic rearrangements in breast cancer genomes. There are more rearrangements in some breast cancers than previously appreciated. Rearrangements are more frequent over gene footprints and most are intrachromosomal. Multiple rearrangement architectures are present, but tandem duplications are particularly common in some cancers, perhaps reflecting a specific defect in DNA maintenance. Short overlapping sequences at most rearrangement junctions indicate that these have been mediated by non-homologous end-joining DNA repair, although varying sequence patterns indicate that multiple processes of this type are operative. Several expressed in-frame fusion genes were identified but none was recurrent. The study provides a new perspective on cancer genomes, highlighting the diversity of somatic rearrangements and their potential contribution to cancer development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3398135/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3398135/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stephens, Philip J -- McBride, David J -- Lin, Meng-Lay -- Varela, Ignacio -- Pleasance, Erin D -- Simpson, Jared T -- Stebbings, Lucy A -- Leroy, Catherine -- Edkins, Sarah -- Mudie, Laura J -- Greenman, Chris D -- Jia, Mingming -- Latimer, Calli -- Teague, Jon W -- Lau, King Wai -- Burton, John -- Quail, Michael A -- Swerdlow, Harold -- Churcher, Carol -- Natrajan, Rachael -- Sieuwerts, Anieta M -- Martens, John W M -- Silver, Daniel P -- Langerod, Anita -- Russnes, Hege E G -- Foekens, John A -- Reis-Filho, Jorge S -- van 't Veer, Laura -- Richardson, Andrea L -- Borresen-Dale, Anne-Lise -- Campbell, Peter J -- Futreal, P Andrew -- Stratton, Michael R -- 077012/Z/05/Z/Wellcome Trust/United Kingdom -- 088340/Wellcome Trust/United Kingdom -- CA089393/CA/NCI NIH HHS/ -- England -- Nature. 2009 Dec 24;462(7276):1005-10. doi: 10.1038/nature08645.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1SA, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20033038" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*genetics ; Cell Line, Tumor ; Cells, Cultured ; *Chromosome Aberrations ; DNA Breaks ; Female ; Gene Rearrangement/*genetics ; Genome, Human/*genetics ; Genomic Library ; Humans ; Sequence Analysis, DNA
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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