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  • 1
    Publication Date: 1999-06-18
    Description: In contrast with the prevailing view that most tumors and metastases begin as avascular masses, evidence is presented here that a subset of tumors instead initially grows by coopting existing host vessels. This coopted host vasculature does not immediately undergo angiogenesis to support the tumor but instead regresses, leading to a secondarily avascular tumor and massive tumor cell loss. Ultimately, however, the remaining tumor is rescued by robust angiogenesis at the tumor margin. The expression patterns of the angiogenic antagonist angiopoietin-2 and of pro-angiogenic vascular endothelial growth factor (VEGF) suggest that these proteins may be critical regulators of this balance between vascular regression and growth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holash, J -- Maisonpierre, P C -- Compton, D -- Boland, P -- Alexander, C R -- Zagzag, D -- Yancopoulos, G D -- Wiegand, S J -- New York, N.Y. -- Science. 1999 Jun 18;284(5422):1994-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10373119" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/blood supply/pathology ; Angiopoietin-1 ; Angiopoietin-2 ; Animals ; Apoptosis ; Blood Vessels/pathology ; Endothelial Growth Factors/genetics/*physiology ; Endothelium, Vascular/pathology/physiology ; Glioblastoma/blood supply/pathology ; Glioma/blood supply/pathology ; In Situ Hybridization ; Lymphokines/genetics/*physiology ; Male ; Membrane Glycoproteins/genetics/*physiology ; Mice ; Mice, Inbred C57BL ; Muscle, Smooth, Vascular/pathology/physiology ; Neoplasm Transplantation ; Neoplasms, Experimental/*blood supply/*pathology ; *Neovascularization, Pathologic ; Proteins/genetics/*physiology ; Rats ; Rats, Sprague-Dawley ; Up-Regulation ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2009-08-13
    Description: Recent landmark experiments have shown that transient overexpression of a small number of transcription factors can reprogram differentiated cells into induced pluripotent stem (iPS) cells that resemble embryonic stem (ES) cells. These iPS cells hold great promise for medicine because they have the potential to generate patient-specific cell types for cell replacement therapy and produce in vitro models of disease, without requiring embryonic tissues or oocytes. Although current iPS cell lines resemble ES cells, they have not passed the most stringent test of pluripotency by generating full-term or adult mice in tetraploid complementation assays, raising questions as to whether they are sufficiently potent to generate all of the cell types in an organism. Whether this difference between iPS and ES cells reflects intrinsic limitations of direct reprogramming is not known. Here we report fertile adult mice derived entirely from iPS cells that we generated by inducible genetic reprogramming of mouse embryonic fibroblasts. Producing adult mice derived entirely from a reprogrammed fibroblast shows that all features of a differentiated cell can be restored to an embryonic level of pluripotency without exposure to unknown ooplasmic factors. Comparing these fully pluripotent iPS cell lines to less developmentally potent lines may reveal molecular markers of different pluripotent states. Furthermore, mice derived entirely from iPS cells will provide a new resource to assess the functional and genomic stability of cells and tissues derived from iPS cells, which is important to validate their utility in cell replacement therapy and research applications.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boland, Michael J -- Hazen, Jennifer L -- Nazor, Kristopher L -- Rodriguez, Alberto R -- Gifford, Wesley -- Martin, Greg -- Kupriyanov, Sergey -- Baldwin, Kristin K -- England -- Nature. 2009 Sep 3;461(7260):91-4. doi: 10.1038/nature08310.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19672243" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Animals ; Cell Dedifferentiation ; Cell Differentiation ; Cell Line ; Cell Lineage ; Embryo, Mammalian/cytology/embryology/metabolism ; Female ; Fibroblasts/cytology ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Pluripotent Stem Cells/cytology/*physiology ; Pregnancy ; *Reproductive Techniques ; Survival Rate
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2005-04-23
    Description: Obligate Acacia ant plants house mutualistic ants as a defense mechanism and provide them with extrafloral nectar (EFN). Ant/plant mutualisms are widespread, but little is known about the biochemical basis of their species specificity. Despite its importance in these and other plant/animal interactions, little attention has been paid to the control of the chemical composition of nectar. We found high invertase (sucrose-cleaving) activity in Acacia EFN, which thus contained no sucrose. Sucrose, a disaccharide common in other EFNs, usually attracts nonsymbiotic ants. The EFN of the ant acacias was therefore unattractive to such ants. The Pseudomyrmex ants that are specialized to live on Acacia had almost no invertase activity in their digestive tracts and preferred sucrose-free EFN. Our results demonstrate postsecretory regulation of the carbohydrate composition of nectar.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heil, M -- Rattke, J -- Boland, W -- New York, N.Y. -- Science. 2005 Apr 22;308(5721):560-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioorganic Chemistry, Max-Planck-Institute for Chemical Ecology, Hans-Knoll-Strasse 8, D-07745 Jena, Germany. Heil_Martin@web.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15845855" target="_blank"〉PubMed〈/a〉
    Keywords: Acacia/chemistry/*enzymology/physiology ; Animals ; Ants/enzymology/*physiology ; Biological Evolution ; Feeding Behavior ; Hydrolysis ; Species Specificity ; Sucrose/analysis/*metabolism ; *Symbiosis ; beta-Fructofuranosidase/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2015-03-04
    Description: Inflammation promotes regeneration of injured tissues through poorly understood mechanisms, some of which involve interleukin (IL)-6 family members, the expression of which is elevated in many diseases including inflammatory bowel diseases and colorectal cancer. Here we show in mice and human cells that gp130, a co-receptor for IL-6 cytokines, triggers activation of YAP and Notch, transcriptional regulators that control tissue growth and regeneration, independently of the gp130 effector STAT3. Through YAP and Notch, intestinal gp130 signalling stimulates epithelial cell proliferation, causes aberrant differentiation and confers resistance to mucosal erosion. gp130 associates with the related tyrosine kinases Src and Yes, which are activated on receptor engagement to phosphorylate YAP and induce its stabilization and nuclear translocation. This signalling module is strongly activated upon mucosal injury to promote healing and maintain barrier function.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4447318/" 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/PMC4447318/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taniguchi, Koji -- Wu, Li-Wha -- Grivennikov, Sergei I -- de Jong, Petrus R -- Lian, Ian -- Yu, Fa-Xing -- Wang, Kepeng -- Ho, Samuel B -- Boland, Brigid S -- Chang, John T -- Sandborn, William J -- Hardiman, Gary -- Raz, Eyal -- Maehara, Yoshihiko -- Yoshimura, Akihiko -- Zucman-Rossi, Jessica -- Guan, Kun-Liang -- Karin, Michael -- CA118165-09/CA/NCI NIH HHS/ -- CA132809/CA/NCI NIH HHS/ -- DP2 OD008469/OD/NIH HHS/ -- EY022611/EY/NEI NIH HHS/ -- R00 DK088589/DK/NIDDK NIH HHS/ -- R01 CA118165/CA/NCI NIH HHS/ -- England -- Nature. 2015 Mar 5;519(7541):57-62. doi: 10.1038/nature14228. Epub 2015 Feb 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Laboratory of Gene Regulation and Signal Transduction, University of California, San Diego, La Jolla, California 92093, USA [2] Departments of Pharmacology and Pathology, University of California, San Diego, La Jolla, California 92093, USA [3] Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan [4] Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo 160-8582, Japan. ; 1] Laboratory of Gene Regulation and Signal Transduction, University of California, San Diego, La Jolla, California 92093, USA [2] Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan. ; 1] Laboratory of Gene Regulation and Signal Transduction, University of California, San Diego, La Jolla, California 92093, USA [2] Fox Chase Cancer Center, Cancer Prevention and Control Program, Philadelphia, Pennsylvania 19111, USA. ; Department of Medicine, University of California, San Diego, La Jolla, California 92093, USA. ; 1] Departments of Pharmacology and Pathology, University of California, San Diego, La Jolla, California 92093, USA [2] Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA [3] Department of Biology, Lamar University, PO Box 10037, Beaumont, Texas 77710, USA. ; 1] Departments of Pharmacology and Pathology, University of California, San Diego, La Jolla, California 92093, USA [2] Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA [3] Children's Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China. ; Laboratory of Gene Regulation and Signal Transduction, University of California, San Diego, La Jolla, California 92093, USA. ; Department of Medicine, VA San Diego Healthcare System, San Diego, California 92161, USA. ; Inflammatory Bowel Disease Center, Division of Gastroenterology, Department of Medicine, School of Medicine, University of California, San Diego, La Jolla, California 92093, USA. ; 1] Department of Medicine, Medical University of South Carolina, Charleston, South Carolina 29425, USA [2] CSRC and BIMRC, San Diego State University, San Diego, California 92182, USA. ; Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan. ; 1] Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo 160-8582, Japan [2] Japan Science and Technology Agency, CREST, Tokyo 102-0076, Japan. ; 1] Inserm, UMR 1162, Genomique fonctionnelle des tumeurs solides, IUH, Paris 75010, France [2] Universite Paris Descartes, Labex Immuno-oncology, Sorbonne Paris Cite, Faculte de Medicine, Paris 75006, France. ; 1] Departments of Pharmacology and Pathology, University of California, San Diego, La Jolla, California 92093, USA [2] Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA. ; 1] Laboratory of Gene Regulation and Signal Transduction, University of California, San Diego, La Jolla, California 92093, USA [2] Departments of Pharmacology and Pathology, University of California, San Diego, La Jolla, California 92093, USA [3] Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25731159" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/*metabolism ; Animals ; Body Weight ; Cell Differentiation ; Cell Proliferation ; Cytokine Receptor gp130/*metabolism ; Disease Models, Animal ; Enzyme Activation ; Epithelial Cells/*cytology/metabolism/pathology ; HEK293 Cells ; Homeostasis ; Humans ; Inflammation/*metabolism/pathology ; Inflammatory Bowel Diseases/metabolism/pathology ; Intestinal Mucosa/*cytology/metabolism/pathology ; Mice ; Phosphoproteins/*metabolism ; Proto-Oncogene Proteins c-yes/metabolism ; Proto-Oncogene Proteins pp60(c-src)/*metabolism ; Receptors, Notch/metabolism ; *Regeneration ; Signal Transduction ; Up-Regulation
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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