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  • Mice  (78)
  • Chemistry
  • Nature Publishing Group (NPG)  (78)
  • 1
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    GOLPH3 modulates mTOR signalling and rapamycin sensitivity in cancer (2009)
    Nature Publishing Group (NPG)
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    Publication Date: 2009-06-26
    Description: Genome-wide copy number analyses of human cancers identified a frequent 5p13 amplification in several solid tumour types, including lung (56%), ovarian (38%), breast (32%), prostate (37%) and melanoma (32%). Here, using integrative analysis of a genomic profile of the region, we identify a Golgi protein, GOLPH3, as a candidate targeted for amplification. Gain- and loss-of-function studies in vitro and in vivo validated GOLPH3 as a potent oncogene. Physically, GOLPH3 localizes to the trans-Golgi network and interacts with components of the retromer complex, which in yeast has been linked to target of rapamycin (TOR) signalling. Mechanistically, GOLPH3 regulates cell size, enhances growth-factor-induced mTOR (also known as FRAP1) signalling in human cancer cells, and alters the response to an mTOR inhibitor in vivo. Thus, genomic and genetic, biological, functional and biochemical data in yeast and humans establishes GOLPH3 as a new oncogene that is commonly targeted for amplification in human cancer, and is capable of modulating the response to rapamycin, a cancer drug in clinical use.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2753613/" 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/PMC2753613/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scott, Kenneth L -- Kabbarah, Omar -- Liang, Mei-Chih -- Ivanova, Elena -- Anagnostou, Valsamo -- Wu, Joyce -- Dhakal, Sabin -- Wu, Min -- Chen, Shujuan -- Feinberg, Tamar -- Huang, Joseph -- Saci, Abdel -- Widlund, Hans R -- Fisher, David E -- Xiao, Yonghong -- Rimm, David L -- Protopopov, Alexei -- Wong, Kwok-Kin -- Chin, Lynda -- 5-T32-AR07098-31/AR/NIAMS NIH HHS/ -- P50 CA090578/CA/NCI NIH HHS/ -- P50 CA093683/CA/NCI NIH HHS/ -- P50 CA093683-06A20011/CA/NCI NIH HHS/ -- P50 CA93683/CA/NCI NIH HHS/ -- R0-1 CA 114277/CA/NCI NIH HHS/ -- R01 AG2400401/AG/NIA NIH HHS/ -- R01 CA093947/CA/NCI NIH HHS/ -- R01 CA093947-08/CA/NCI NIH HHS/ -- R01 CA114277/CA/NCI NIH HHS/ -- R01 CA114277-04/CA/NCI NIH HHS/ -- R01 CA122794/CA/NCI NIH HHS/ -- R01 CA122794-03/CA/NCI NIH HHS/ -- R01 CA93947/CA/NCI NIH HHS/ -- T32 AR007098/AR/NIAMS NIH HHS/ -- T32 AR007098-32/AR/NIAMS NIH HHS/ -- England -- Nature. 2009 Jun 25;459(7250):1085-90. doi: 10.1038/nature08109.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19553991" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibiotics, Antineoplastic/*pharmacology ; Cell Line, Tumor/drug effects ; DNA-Binding Proteins/genetics ; Female ; Gene Knockdown Techniques ; Humans ; Membrane Proteins/genetics/*metabolism ; Mice ; Mice, Nude ; Neoplasms/*physiopathology ; Protein Kinases/genetics/*metabolism ; Saccharomyces cerevisiae/genetics ; *Signal Transduction ; Sirolimus/*pharmacology ; TOR Serine-Threonine Kinases ; Transcription Factors/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
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    Pancreatic cancer genomes reveal aberrations in axon guidance pathway genes (2012)
    Nature Publishing Group (NPG)
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    Publication Date: 2012-10-30
    Description: Pancreatic cancer is a highly lethal malignancy with few effective therapies. We performed exome sequencing and copy number analysis to define genomic aberrations in a prospectively accrued clinical cohort (n = 142) of early (stage I and II) sporadic pancreatic ductal adenocarcinoma. Detailed analysis of 99 informative tumours identified substantial heterogeneity with 2,016 non-silent mutations and 1,628 copy-number variations. We define 16 significantly mutated genes, reaffirming known mutations (KRAS, TP53, CDKN2A, SMAD4, MLL3, TGFBR2, ARID1A and SF3B1), and uncover novel mutated genes including additional genes involved in chromatin modification (EPC1 and ARID2), DNA damage repair (ATM) and other mechanisms (ZIM2, MAP2K4, NALCN, SLC16A4 and MAGEA6). Integrative analysis with in vitro functional data and animal models provided supportive evidence for potential roles for these genetic aberrations in carcinogenesis. Pathway-based analysis of recurrently mutated genes recapitulated clustering in core signalling pathways in pancreatic ductal adenocarcinoma, and identified new mutated genes in each pathway. We also identified frequent and diverse somatic aberrations in genes described traditionally as embryonic regulators of axon guidance, particularly SLIT/ROBO signalling, which was also evident in murine Sleeping Beauty transposon-mediated somatic mutagenesis models of pancreatic cancer, providing further supportive evidence for the potential involvement of axon guidance genes in pancreatic carcinogenesis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3530898/" 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/PMC3530898/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Biankin, Andrew V -- Waddell, Nicola -- Kassahn, Karin S -- Gingras, Marie-Claude -- Muthuswamy, Lakshmi B -- Johns, Amber L -- Miller, David K -- Wilson, Peter J -- Patch, Ann-Marie -- Wu, Jianmin -- Chang, David K -- Cowley, Mark J -- Gardiner, Brooke B -- Song, Sarah -- Harliwong, Ivon -- Idrisoglu, Senel -- Nourse, Craig -- Nourbakhsh, Ehsan -- Manning, Suzanne -- Wani, Shivangi -- Gongora, Milena -- Pajic, Marina -- Scarlett, Christopher J -- Gill, Anthony J -- Pinho, Andreia V -- Rooman, Ilse -- Anderson, Matthew -- Holmes, Oliver -- Leonard, Conrad -- Taylor, Darrin -- Wood, Scott -- Xu, Qinying -- Nones, Katia -- Fink, J Lynn -- Christ, Angelika -- Bruxner, Tim -- Cloonan, Nicole -- Kolle, Gabriel -- Newell, Felicity -- Pinese, Mark -- Mead, R Scott -- Humphris, Jeremy L -- Kaplan, Warren -- Jones, Marc D -- Colvin, Emily K -- Nagrial, Adnan M -- Humphrey, Emily S -- Chou, Angela -- Chin, Venessa T -- Chantrill, Lorraine A -- Mawson, Amanda -- Samra, Jaswinder S -- Kench, James G -- Lovell, Jessica A -- Daly, Roger J -- Merrett, Neil D -- Toon, Christopher -- Epari, Krishna -- Nguyen, Nam Q -- Barbour, Andrew -- Zeps, Nikolajs -- Australian Pancreatic Cancer Genome Initiative -- Kakkar, Nipun -- Zhao, Fengmei -- Wu, Yuan Qing -- Wang, Min -- Muzny, Donna M -- Fisher, William E -- Brunicardi, F Charles -- Hodges, Sally E -- Reid, Jeffrey G -- Drummond, Jennifer -- Chang, Kyle -- Han, Yi -- Lewis, Lora R -- Dinh, Huyen -- Buhay, Christian J -- Beck, Timothy -- Timms, Lee -- Sam, Michelle -- Begley, Kimberly -- Brown, Andrew -- Pai, Deepa -- Panchal, Ami -- Buchner, Nicholas -- De Borja, Richard -- Denroche, Robert E -- Yung, Christina K -- Serra, Stefano -- Onetto, Nicole -- Mukhopadhyay, Debabrata -- Tsao, Ming-Sound -- Shaw, Patricia A -- Petersen, Gloria M -- Gallinger, Steven -- Hruban, Ralph H -- Maitra, Anirban -- Iacobuzio-Donahue, Christine A -- Schulick, Richard D -- Wolfgang, Christopher L -- Morgan, Richard A -- Lawlor, Rita T -- Capelli, Paola -- Corbo, Vincenzo -- Scardoni, Maria -- Tortora, Giampaolo -- Tempero, Margaret A -- Mann, Karen M -- Jenkins, Nancy A -- Perez-Mancera, Pedro A -- Adams, David J -- Largaespada, David A -- Wessels, Lodewyk F A -- Rust, Alistair G -- Stein, Lincoln D -- Tuveson, David A -- Copeland, Neal G -- Musgrove, Elizabeth A -- Scarpa, Aldo -- Eshleman, James R -- Hudson, Thomas J -- Sutherland, Robert L -- Wheeler, David A -- Pearson, John V -- McPherson, John D -- Gibbs, Richard A -- Grimmond, Sean M -- 13031/Cancer Research UK/United Kingdom -- 2P50CA101955/CA/NCI NIH HHS/ -- P01CA134292/CA/NCI NIH HHS/ -- P50 CA101955/CA/NCI NIH HHS/ -- P50 CA102701/CA/NCI NIH HHS/ -- P50CA062924/CA/NCI NIH HHS/ -- R01 CA097075/CA/NCI NIH HHS/ -- R01 CA97075/CA/NCI NIH HHS/ -- U54 HG003273/HG/NHGRI NIH HHS/ -- Cancer Research UK/United Kingdom -- Wellcome Trust/United Kingdom -- England -- Nature. 2012 Nov 15;491(7424):399-405. doi: 10.1038/nature11547. Epub 2012 Oct 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Kinghorn Cancer Centre, 370 Victoria Street, Darlinghurst, Sydney, New South Wales 2010, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23103869" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*metabolism ; Carcinoma, Pancreatic Ductal/*genetics/*pathology ; Gene Dosage ; Gene Expression Regulation, Neoplastic ; Genome/*genetics ; Humans ; Kaplan-Meier Estimate ; Mice ; Mutation ; Pancreatic Neoplasms/*genetics/*pathology ; Proteins/genetics ; 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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  • 3
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    Therapeutic antibody targeting of individual Notch receptors (2010)
    Nature Publishing Group (NPG)
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    Publication Date: 2010-04-16
    Description: The four receptors of the Notch family are widely expressed transmembrane proteins that function as key conduits through which mammalian cells communicate to regulate cell fate and growth. Ligand binding triggers a conformational change in the receptor negative regulatory region (NRR) that enables ADAM protease cleavage at a juxtamembrane site that otherwise lies buried within the quiescent NRR. Subsequent intramembrane proteolysis catalysed by the gamma-secretase complex liberates the intracellular domain (ICD) to initiate the downstream Notch transcriptional program. Aberrant signalling through each receptor has been linked to numerous diseases, particularly cancer, making the Notch pathway a compelling target for new drugs. Although gamma-secretase inhibitors (GSIs) have progressed into the clinic, GSIs fail to distinguish individual Notch receptors, inhibit other signalling pathways and cause intestinal toxicity, attributed to dual inhibition of Notch1 and 2 (ref. 11). To elucidate the discrete functions of Notch1 and Notch2 and develop clinically relevant inhibitors that reduce intestinal toxicity, we used phage display technology to generate highly specialized antibodies that specifically antagonize each receptor paralogue and yet cross-react with the human and mouse sequences, enabling the discrimination of Notch1 versus Notch2 function in human patients and rodent models. Our co-crystal structure shows that the inhibitory mechanism relies on stabilizing NRR quiescence. Selective blocking of Notch1 inhibits tumour growth in pre-clinical models through two mechanisms: inhibition of cancer cell growth and deregulation of angiogenesis. Whereas inhibition of Notch1 plus Notch2 causes severe intestinal toxicity, inhibition of either receptor alone reduces or avoids this effect, demonstrating a clear advantage over pan-Notch inhibitors. Our studies emphasize the value of paralogue-specific antagonists in dissecting the contributions of distinct Notch receptors to differentiation and disease and reveal the therapeutic promise in targeting Notch1 and Notch2 independently.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Yan -- Cain-Hom, Carol -- Choy, Lisa -- Hagenbeek, Thijs J -- de Leon, Gladys P -- Chen, Yongmei -- Finkle, David -- Venook, Rayna -- Wu, Xiumin -- Ridgway, John -- Schahin-Reed, Dorreyah -- Dow, Graham J -- Shelton, Amy -- Stawicki, Scott -- Watts, Ryan J -- Zhang, Jeff -- Choy, Robert -- Howard, Peter -- Kadyk, Lisa -- Yan, Minhong -- Zha, Jiping -- Callahan, Christopher A -- Hymowitz, Sarah G -- Siebel, Christian W -- England -- Nature. 2010 Apr 15;464(7291):1052-7. doi: 10.1038/nature08878.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Antibody Engineering, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20393564" target="_blank"〉PubMed〈/a〉
    Keywords: Angiogenesis Inhibitors/immunology/pharmacology/therapeutic use ; Animals ; Antibodies/adverse effects/immunology/*pharmacology/*therapeutic use ; Antibody Specificity/immunology ; Cell Line, Tumor ; Cell Proliferation/drug effects ; Goblet Cells/drug effects/pathology ; Humans ; Mice ; Mice, Inbred BALB C ; NIH 3T3 Cells ; Neoplasms/blood supply/*drug therapy/*metabolism/pathology ; Neovascularization, Pathologic/drug therapy ; Peptide Library ; Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/drug ; therapy/metabolism/pathology ; Receptor, Notch1/antagonists & inhibitors/immunology ; Receptor, Notch2/antagonists & inhibitors/immunology ; Receptors, Notch/*antagonists & inhibitors/genetics/immunology/metabolism ; Signal Transduction/drug effects
    Print ISSN: 0028-0836
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  • 4
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    SMAD4-dependent barrier constrains prostate cancer growth and metastatic progression (2011)
    Nature Publishing Group (NPG)
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    Publication Date: 2011-02-04
    Description: Effective clinical management of prostate cancer (PCA) has been challenged by significant intratumoural heterogeneity on the genomic and pathological levels and limited understanding of the genetic elements governing disease progression. Here, we exploited the experimental merits of the mouse to test the hypothesis that pathways constraining progression might be activated in indolent Pten-null mouse prostate tumours and that inactivation of such progression barriers in mice would engender a metastasis-prone condition. Comparative transcriptomic and canonical pathway analyses, followed by biochemical confirmation, of normal prostate epithelium versus poorly progressive Pten-null prostate cancers revealed robust activation of the TGFbeta/BMP-SMAD4 signalling axis. The functional relevance of SMAD4 was further supported by emergence of invasive, metastatic and lethal prostate cancers with 100% penetrance upon genetic deletion of Smad4 in the Pten-null mouse prostate. Pathological and molecular analysis as well as transcriptomic knowledge-based pathway profiling of emerging tumours identified cell proliferation and invasion as two cardinal tumour biological features in the metastatic Smad4/Pten-null PCA model. Follow-on pathological and functional assessment confirmed cyclin D1 and SPP1 as key mediators of these biological processes, which together with PTEN and SMAD4, form a four-gene signature that is prognostic of prostate-specific antigen (PSA) biochemical recurrence and lethal metastasis in human PCA. This model-informed progression analysis, together with genetic, functional and translational studies, establishes SMAD4 as a key regulator of PCA progression in mice and humans.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3753179/" 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/PMC3753179/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ding, Zhihu -- Wu, Chang-Jiun -- Chu, Gerald C -- Xiao, Yonghong -- Ho, Dennis -- Zhang, Jingfang -- Perry, Samuel R -- Labrot, Emma S -- Wu, Xiaoqiu -- Lis, Rosina -- Hoshida, Yujin -- Hiller, David -- Hu, Baoli -- Jiang, Shan -- Zheng, Hongwu -- Stegh, Alexander H -- Scott, Kenneth L -- Signoretti, Sabina -- Bardeesy, Nabeel -- Wang, Y Alan -- Hill, David E -- Golub, Todd R -- Stampfer, Meir J -- Wong, Wing H -- Loda, Massimo -- Mucci, Lorelei -- Chin, Lynda -- DePinho, Ronald A -- P50 CA090381/CA/NCI NIH HHS/ -- P50 CA090381-08/CA/NCI NIH HHS/ -- P50 CA90381/CA/NCI NIH HHS/ -- R01 5R01CA136578/CA/NCI NIH HHS/ -- R01 CA131945/CA/NCI NIH HHS/ -- R01CA131945/CA/NCI NIH HHS/ -- R01CA141298/CA/NCI NIH HHS/ -- U01-CA84313/CA/NCI NIH HHS/ -- England -- Nature. 2011 Feb 10;470(7333):269-73. doi: 10.1038/nature09677. Epub 2011 Feb 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Belfer Institute for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21289624" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Morphogenetic Proteins/metabolism ; Cell Proliferation ; Cyclin D1/genetics/metabolism ; *Disease Progression ; Gene Expression Profiling ; Gene Expression Regulation, Neoplastic ; Genes, Tumor Suppressor/physiology ; Humans ; Lung Neoplasms/secondary ; Lymphatic Metastasis ; Male ; Mice ; Mice, Transgenic ; Models, Biological ; Neoplasm Invasiveness/genetics/pathology ; Neoplasm Metastasis/genetics/*pathology ; Osteopontin/genetics/metabolism ; PTEN Phosphohydrolase/deficiency/genetics ; Penetrance ; Prognosis ; Prostate/metabolism ; Prostate-Specific Antigen/metabolism ; Prostatic Neoplasms/diagnosis/genetics/*pathology ; Smad4 Protein/deficiency/genetics/*metabolism ; Transforming Growth Factor beta
    Print ISSN: 0028-0836
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  • 5
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    Role of corin in trophoblast invasion and uterine spiral artery remodelling in pregnancy (2012)
    Nature Publishing Group (NPG)
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    Publication Date: 2012-03-23
    Description: In pregnancy, trophoblast invasion and uterine spiral artery remodelling are important for lowering maternal vascular resistance and increasing uteroplacental blood flow. Impaired spiral artery remodelling has been implicated in pre-eclampsia, a major complication of pregnancy, for a long time but the underlying mechanisms remain unclear. Corin (also known as atrial natriuretic peptide-converting enzyme) is a cardiac protease that activates atrial natriuretic peptide (ANP), a cardiac hormone that is important in regulating blood pressure. Unexpectedly, corin expression was detected in the pregnant uterus. Here we identify a new function of corin and ANP in promoting trophoblast invasion and spiral artery remodelling. We show that pregnant corin- or ANP-deficient mice developed high blood pressure and proteinuria, characteristics of pre-eclampsia. In these mice, trophoblast invasion and uterine spiral artery remodelling were markedly impaired. Consistent with this, the ANP potently stimulated human trophoblasts in invading Matrigels. In patients with pre-eclampsia, uterine Corin messenger RNA and protein levels were significantly lower than that in normal pregnancies. Moreover, we have identified Corin gene mutations in pre-eclamptic patients, which decreased corin activity in processing pro-ANP. These results indicate that corin and ANP are essential for physiological changes at the maternal-fetal interface, suggesting that defects in corin and ANP function may contribute to pre-eclampsia.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3578422/" 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/PMC3578422/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cui, Yujie -- Wang, Wei -- Dong, Ningzheng -- Lou, Jinglei -- Srinivasan, Dinesh Kumar -- Cheng, Weiwei -- Huang, Xiaoyi -- Liu, Meng -- Fang, Chaodong -- Peng, Jianhao -- Chen, Shenghan -- Wu, Shannon -- Liu, Zhenzhen -- Dong, Liang -- Zhou, Yiqing -- Wu, Qingyu -- HD064634/HD/NICHD NIH HHS/ -- HL089298/HL/NHLBI NIH HHS/ -- R01 HD064634/HD/NICHD NIH HHS/ -- R01 HL089298/HL/NHLBI NIH HHS/ -- England -- Nature. 2012 Mar 21;484(7393):246-50. doi: 10.1038/nature10897.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Cardiology, Nephrology and Hypertension, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, Ohio 44195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22437503" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atrial Natriuretic Factor/deficiency/genetics/metabolism ; Blood Pressure/genetics ; Case-Control Studies ; Cells, Cultured ; Disease Models, Animal ; Female ; Gene Expression Regulation ; HEK293 Cells ; Humans ; Ischemia/metabolism/pathology ; Kidney/blood supply/pathology ; Kidney Diseases/genetics/pathology ; Mice ; Mice, Knockout ; Mice, Transgenic ; Mutation ; Pre-Eclampsia/genetics/metabolism/pathology/physiopathology ; Pregnancy ; Serine Endopeptidases/chemistry/genetics/*metabolism ; Trophoblasts/*cytology/metabolism ; Uterine Artery/*growth & development ; Uterus/*blood supply/*metabolism
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  • 6
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    Therapeutic antibodies reveal Notch control of transdifferentiation in the adult lung (2015)
    Nature Publishing Group (NPG)
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    Publication Date: 2015-11-19
    Description: Prevailing dogma holds that cell-cell communication through Notch ligands and receptors determines binary cell fate decisions during progenitor cell divisions, with differentiated lineages remaining fixed. Mucociliary clearance in mammalian respiratory airways depends on secretory cells (club and goblet) and ciliated cells to produce and transport mucus. During development or repair, the closely related Jagged ligands (JAG1 and JAG2) induce Notch signalling to determine the fate of these lineages as they descend from a common proliferating progenitor. In contrast to such situations in which cell fate decisions are made in rapidly dividing populations, cells of the homeostatic adult airway epithelium are long-lived, and little is known about the role of active Notch signalling under such conditions. To disrupt Jagged signalling acutely in adult mammals, here we generate antibody antagonists that selectively target each Jagged paralogue, and determine a crystal structure that explains selectivity. We show that acute Jagged blockade induces a rapid and near-complete loss of club cells, with a concomitant gain in ciliated cells, under homeostatic conditions without increased cell death or division. Fate analyses demonstrate a direct conversion of club cells to ciliated cells without proliferation, meeting a conservative definition of direct transdifferentiation. Jagged inhibition also reversed goblet cell metaplasia in a preclinical asthma model, providing a therapeutic foundation. Our discovery that Jagged antagonism relieves a blockade of cell-to-cell conversion unveils unexpected plasticity, and establishes a model for Notch regulation of transdifferentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lafkas, Daniel -- Shelton, Amy -- Chiu, Cecilia -- de Leon Boenig, Gladys -- Chen, Yongmei -- Stawicki, Scott S -- Siltanen, Christian -- Reichelt, Mike -- Zhou, Meijuan -- Wu, Xiumin -- Eastham-Anderson, Jeffrey -- Moore, Heather -- Roose-Girma, Meron -- Chinn, Yvonne -- Hang, Julie Q -- Warming, Soren -- Egen, Jackson -- Lee, Wyne P -- Austin, Cary -- Wu, Yan -- Payandeh, Jian -- Lowe, John B -- Siebel, Christian W -- England -- Nature. 2015 Dec 3;528(7580):127-31. doi: 10.1038/nature15715. Epub 2015 Nov 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Discovery Oncology, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Antibody Engineering, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Structural Biology, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Pathology, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Translational Immunology, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Discovery Immunology, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Molecular Biology, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, USA. ; Departments of Protein Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26580007" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/immunology/pharmacology/*therapeutic use ; Asthma/drug therapy/metabolism/pathology ; Calcium-Binding Proteins/antagonists & inhibitors/immunology/metabolism ; Cell Death/drug effects ; Cell Division/drug effects ; Cell Lineage/drug effects ; Cell Tracking ; *Cell Transdifferentiation/drug effects ; Cilia/metabolism ; Disease Models, Animal ; Female ; Goblet Cells/cytology/drug effects/pathology ; Homeostasis/drug effects ; Humans ; Intercellular Signaling Peptides and Proteins/immunology/metabolism ; Ligands ; Lung/*cytology/drug effects/*metabolism ; Male ; Membrane Proteins/antagonists & inhibitors/immunology/metabolism ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Receptors, Notch/*metabolism ; Signal Transduction/drug effects
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  • 7
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    Production of p53 gene knockout rats by homologous recombination in embryonic stem cells (2010)
    Nature Publishing Group (NPG)
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    Publication Date: 2010-08-13
    Description: The use of homologous recombination to modify genes in embryonic stem (ES) cells provides a powerful means to elucidate gene function and create disease models. Application of this technology to engineer genes in rats has not previously been possible because of the absence of germline-competent ES cells in this species. We have recently established authentic rat ES cells. Here we report the generation of gene knockout rats using the ES-cell-based gene targeting technology. We designed a targeting vector to disrupt the tumour suppressor gene p53 (also known as Tp53) in rat ES cells by means of homologous recombination. p53 gene-targeted rat ES cells can be routinely generated. Furthermore, the p53 gene-targeted mutation in the rat ES-cell genome can transmit through the germ line via ES-cell rat chimaeras to create p53 gene knockout rats. The rat is the most widely used animal model in biological research. The establishment of gene targeting technology in rat ES cells, in combination with advances in genomics and the vast amount of research data on physiology and pharmacology in this species, now provide a powerful new platform for the study of human disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2937076/" 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/PMC2937076/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tong, Chang -- Li, Ping -- Wu, Nancy L -- Yan, Youzhen -- Ying, Qi-Long -- 1R01 RR025881/RR/NCRR NIH HHS/ -- R01 OD010926/OD/NIH HHS/ -- R01 RR025881/RR/NCRR NIH HHS/ -- R01 RR025881-01A2/RR/NCRR NIH HHS/ -- England -- Nature. 2010 Sep 9;467(7312):211-3. doi: 10.1038/nature09368. Epub 2010 Aug 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research at USC, Department of Cell and Neurobiology, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20703227" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Culture Techniques ; Embryo, Mammalian/cytology ; Embryonic Stem Cells/*cytology ; Female ; Gene Knockout Techniques/*methods ; *Genes, p53 ; Germ-Line Mutation ; Male ; Mice ; Molecular Sequence Data ; Rats/*genetics ; Rats, Inbred F344 ; Rats, Sprague-Dawley ; Recombination, Genetic
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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    Pluripotent stem cells induced from adult neural stem cells by reprogramming with two factors (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-07-03
    Description: Reprogramming of somatic cells is a valuable tool to understand the mechanisms of regaining pluripotency and further opens up the possibility of generating patient-specific pluripotent stem cells. Reprogramming of mouse and human somatic cells into pluripotent stem cells, designated as induced pluripotent stem (iPS) cells, has been possible with the expression of the transcription factor quartet Oct4 (also known as Pou5f1), Sox2, c-Myc and Klf4 (refs 1-11). Considering that ectopic expression of c-Myc causes tumorigenicity in offspring and that retroviruses themselves can cause insertional mutagenesis, the generation of iPS cells with a minimal number of factors may hasten the clinical application of this approach. Here we show that adult mouse neural stem cells express higher endogenous levels of Sox2 and c-Myc than embryonic stem cells, and that exogenous Oct4 together with either Klf4 or c-Myc is sufficient to generate iPS cells from neural stem cells. These two-factor iPS cells are similar to embryonic stem cells at the molecular level, contribute to development of the germ line, and form chimaeras. We propose that, in inducing pluripotency, the number of reprogramming factors can be reduced when using somatic cells that endogenously express appropriate levels of complementing factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Jeong Beom -- Zaehres, Holm -- Wu, Guangming -- Gentile, Luca -- Ko, Kinarm -- Sebastiano, Vittorio -- Arauzo-Bravo, Marcos J -- Ruau, David -- Han, Dong Wook -- Zenke, Martin -- Scholer, Hans R -- England -- Nature. 2008 Jul 31;454(7204):646-50. doi: 10.1038/nature07061. Epub 2008 Jun 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Rontgenstrasse 20, 48149 Munster, NRW, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18594515" target="_blank"〉PubMed〈/a〉
    Keywords: Adult Stem Cells/*cytology/metabolism ; Animals ; Cell Differentiation/genetics ; Cells, Cultured ; *Cellular Reprogramming ; Chimera ; DNA-Binding Proteins/genetics/metabolism ; Female ; Gene Expression Profiling ; Genes, myc/genetics ; HMGB Proteins/genetics/metabolism ; Homeodomain Proteins/genetics ; Kruppel-Like Transcription Factors/genetics/metabolism ; Male ; Mice ; Mice, Nude ; Mice, Transgenic ; Neurons/*cytology ; Octamer Transcription Factor-3/genetics/metabolism ; Pluripotent Stem Cells/*cytology/*metabolism ; Proteins/genetics ; Proto-Oncogene Proteins c-myc/metabolism ; RNA, Untranslated ; SOXB1 Transcription Factors ; Transcription Factors/genetics/metabolism ; Transduction, Genetic
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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    Multi-genetic events collaboratively contribute to Pten-null leukaemia stem-cell formation (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-05-09
    Description: Cancer stem cells, which share many common properties and regulatory machineries with normal stem cells, have recently been proposed to be responsible for tumorigenesis and to contribute to cancer resistance. The main challenges in cancer biology are to identify cancer stem cells and to define the molecular events required for transforming normal cells to cancer stem cells. Here we show that Pten deletion in mouse haematopoietic stem cells leads to a myeloproliferative disorder, followed by acute T-lymphoblastic leukaemia (T-ALL). Self-renewable leukaemia stem cells (LSCs) are enriched in the c-Kit(mid)CD3(+)Lin(-) compartment, where unphosphorylated beta-catenin is significantly increased. Conditional ablation of one allele of the beta-catenin gene substantially decreases the incidence and delays the occurrence of T-ALL caused by Pten loss, indicating that activation of the beta-catenin pathway may contribute to the formation or expansion of the LSC population. Moreover, a recurring chromosomal translocation, T(14;15), results in aberrant overexpression of the c-myc oncogene in c-Kit(mid)CD3(+)Lin(-) LSCs and CD3(+) leukaemic blasts, recapitulating a subset of human T-ALL. No alterations in Notch1 signalling are detected in this model, suggesting that Pten inactivation and c-myc overexpression may substitute functionally for Notch1 abnormalities, leading to T-ALL development. Our study indicates that multiple genetic or molecular alterations contribute cooperatively to LSC transformation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2840044/" 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/PMC2840044/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guo, Wei -- Lasky, Joseph L -- Chang, Chun-Ju -- Mosessian, Sherly -- Lewis, Xiaoman -- Xiao, Yun -- Yeh, Jennifer E -- Chen, James Y -- Iruela-Arispe, M Luisa -- Varella-Garcia, Marileila -- Wu, Hong -- CA16042/CA/NCI NIH HHS/ -- R01 CA121110/CA/NCI NIH HHS/ -- R01 CA121110-01A1/CA/NCI NIH HHS/ -- England -- Nature. 2008 May 22;453(7194):529-33. doi: 10.1038/nature06933. Epub 2008 May 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, California 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18463637" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD3/metabolism ; Cell Proliferation ; Chromosomes, Mammalian/genetics ; Female ; Hematopoietic Stem Cells/cytology/pathology ; In Situ Hybridization, Fluorescence ; Leukemia-Lymphoma, Adult T-Cell/*pathology ; Male ; Mice ; Neoplastic Stem Cells/*metabolism/*pathology ; PTEN Phosphohydrolase/*deficiency/*genetics ; Proto-Oncogene Proteins c-kit/metabolism ; Proto-Oncogene Proteins c-myc/genetics/metabolism ; Receptors, Antigen, T-Cell/genetics ; Translocation, Genetic ; beta Catenin/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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    Epicardial progenitors contribute to the cardiomyocyte lineage in the developing heart (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-06-24
    Description: The heart is formed from cardiogenic progenitors expressing the transcription factors Nkx2-5 and Isl1 (refs 1 and 2). These multipotent progenitors give rise to cardiomyocyte, smooth muscle and endothelial cells, the major lineages of the mature heart. Here we identify a novel cardiogenic precursor marked by expression of the transcription factor Wt1 and located within the epicardium-an epithelial sheet overlying the heart. During normal murine heart development, a subset of these Wt1(+) precursors differentiated into fully functional cardiomyocytes. Wt1(+) proepicardial cells arose from progenitors that express Nkx2-5 and Isl1, suggesting that they share a developmental origin with multipotent Nkx2-5(+) and Isl1(+) progenitors. These results identify Wt1(+) epicardial cells as previously unrecognized cardiomyocyte progenitors, and lay the foundation for future efforts to harness the cardiogenic potential of these progenitors for cardiac regeneration and repair.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2574791/" 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/PMC2574791/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhou, Bin -- Ma, Qing -- Rajagopal, Satish -- Wu, Sean M -- Domian, Ibrahim -- Rivera-Feliciano, Jose -- Jiang, Dawei -- von Gise, Alexander -- Ikeda, Sadakatsu -- Chien, Kenneth R -- Pu, William T -- P50 HL074734/HL/NHLBI NIH HHS/ -- P50 HL074734-05/HL/NHLBI NIH HHS/ -- England -- Nature. 2008 Jul 3;454(7200):109-13. doi: 10.1038/nature07060. Epub 2008 Jun 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Harvard Stem Cell Institute and Department of Cardiology, Children's Hospital Boston, 300 Longwood Avenue, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18568026" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; *Cell Lineage ; Gene Expression Regulation, Developmental ; Green Fluorescent Proteins/genetics/metabolism ; Heart/*embryology ; Homeodomain Proteins/genetics/metabolism ; Mice ; Myocytes, Cardiac/*cytology/metabolism ; Pericardium/*cytology/embryology/metabolism ; Stem Cells/*cytology/metabolism ; Transcription Factors/genetics/metabolism ; WT1 Proteins/genetics/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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