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  • Articles  (24)
  • Binding Sites
  • Signal Transduction
  • American Association for the Advancement of Science (AAAS)  (24)
  • Elsevier
  • 2015-2019  (24)
  • Computer Science  (24)
  • Chemistry and Pharmacology  (24)
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  • Articles  (24)
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  • 1
    Publication Date: 2015-09-19
    Description: Prostate cancer is initially responsive to androgen deprivation, but the effectiveness of androgen receptor (AR) inhibitors in recurrent disease is variable. Biopsy of bone metastases is challenging; hence, sampling circulating tumor cells (CTCs) may reveal drug-resistance mechanisms. We established single-cell RNA-sequencing (RNA-Seq) profiles of 77 intact CTCs isolated from 13 patients (mean six CTCs per patient), by using microfluidic enrichment. Single CTCs from each individual display considerable heterogeneity, including expression of AR gene mutations and splicing variants. Retrospective analysis of CTCs from patients progressing under treatment with an AR inhibitor, compared with untreated cases, indicates activation of noncanonical Wnt signaling (P = 0.0064). Ectopic expression of Wnt5a in prostate cancer cells attenuates the antiproliferative effect of AR inhibition, whereas its suppression in drug-resistant cells restores partial sensitivity, a correlation also evident in an established mouse model. Thus, single-cell analysis of prostate CTCs reveals heterogeneity in signaling pathways that could contribute to treatment failure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miyamoto, David T -- Zheng, Yu -- Wittner, Ben S -- Lee, Richard J -- Zhu, Huili -- Broderick, Katherine T -- Desai, Rushil -- Fox, Douglas B -- Brannigan, Brian W -- Trautwein, Julie -- Arora, Kshitij S -- Desai, Niyati -- Dahl, Douglas M -- Sequist, Lecia V -- Smith, Matthew R -- Kapur, Ravi -- Wu, Chin-Lee -- Shioda, Toshi -- Ramaswamy, Sridhar -- Ting, David T -- Toner, Mehmet -- Maheswaran, Shyamala -- Haber, Daniel A -- 2R01CA129933/CA/NCI NIH HHS/ -- EB008047/EB/NIBIB NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Sep 18;349(6254):1351-6. doi: 10.1126/science.aab0917.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Massachusetts General Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. ; Massachusetts General Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA. ; Massachusetts General Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. ; Massachusetts General Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. ; Massachusetts General Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. ; Massachusetts General Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. Department of Urology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. ; Center for Bioengineering in Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. ; Massachusetts General Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. haber@helix.mgh.harvard.edu smaheswaran@mgh.harvard.edu. ; Massachusetts General Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA. Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. haber@helix.mgh.harvard.edu smaheswaran@mgh.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26383955" target="_blank"〉PubMed〈/a〉
    Keywords: Androgen Antagonists/pharmacology/*therapeutic use ; Animals ; Cell Line, Tumor ; Drug Resistance, Neoplasm/*genetics ; Humans ; Male ; Mice ; Neoplastic Cells, Circulating/drug effects/*metabolism ; Phenylthiohydantoin/*analogs & derivatives/pharmacology/therapeutic use ; Prostate/drug effects/metabolism/pathology ; Prostatic Neoplasms/*drug therapy/*pathology ; Proto-Oncogene Proteins/genetics/metabolism ; RNA Splicing ; Receptors, Androgen/*genetics ; Sequence Analysis, RNA/methods ; Signal Transduction ; Single-Cell Analysis/methods ; Transcriptome ; Wnt Proteins/genetics/*metabolism ; Xenograft Model Antitumor Assays
    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: 2015-02-14
    Description: Although it is generally accepted that cellular differentiation requires changes to transcriptional networks, dynamic regulation of promoters and enhancers at specific sets of genes has not been previously studied en masse. Exploiting the fact that active promoters and enhancers are transcribed, we simultaneously measured their activity in 19 human and 14 mouse time courses covering a wide range of cell types and biological stimuli. Enhancer RNAs, then messenger RNAs encoding transcription factors, dominated the earliest responses. Binding sites for key lineage transcription factors were simultaneously overrepresented in enhancers and promoters active in each cellular system. Our data support a highly generalizable model in which enhancer transcription is the earliest event in successive waves of transcriptional change during cellular differentiation or activation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4681433/" 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/PMC4681433/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arner, Erik -- Daub, Carsten O -- Vitting-Seerup, Kristoffer -- Andersson, Robin -- Lilje, Berit -- Drablos, Finn -- Lennartsson, Andreas -- Ronnerblad, Michelle -- Hrydziuszko, Olga -- Vitezic, Morana -- Freeman, Tom C -- Alhendi, Ahmad M N -- Arner, Peter -- Axton, Richard -- Baillie, J Kenneth -- Beckhouse, Anthony -- Bodega, Beatrice -- Briggs, James -- Brombacher, Frank -- Davis, Margaret -- Detmar, Michael -- Ehrlund, Anna -- Endoh, Mitsuhiro -- Eslami, Afsaneh -- Fagiolini, Michela -- Fairbairn, Lynsey -- Faulkner, Geoffrey J -- Ferrai, Carmelo -- Fisher, Malcolm E -- Forrester, Lesley -- Goldowitz, Daniel -- Guler, Reto -- Ha, Thomas -- Hara, Mitsuko -- Herlyn, Meenhard -- Ikawa, Tomokatsu -- Kai, Chieko -- Kawamoto, Hiroshi -- Khachigian, Levon M -- Klinken, S Peter -- Kojima, Soichi -- Koseki, Haruhiko -- Klein, Sarah -- Mejhert, Niklas -- Miyaguchi, Ken -- Mizuno, Yosuke -- Morimoto, Mitsuru -- Morris, Kelly J -- Mummery, Christine -- Nakachi, Yutaka -- Ogishima, Soichi -- Okada-Hatakeyama, Mariko -- Okazaki, Yasushi -- Orlando, Valerio -- Ovchinnikov, Dmitry -- Passier, Robert -- Patrikakis, Margaret -- Pombo, Ana -- Qin, Xian-Yang -- Roy, Sugata -- Sato, Hiroki -- Savvi, Suzana -- Saxena, Alka -- Schwegmann, Anita -- Sugiyama, Daisuke -- Swoboda, Rolf -- Tanaka, Hiroshi -- Tomoiu, Andru -- Winteringham, Louise N -- Wolvetang, Ernst -- Yanagi-Mizuochi, Chiyo -- Yoneda, Misako -- Zabierowski, Susan -- Zhang, Peter -- Abugessaisa, Imad -- Bertin, Nicolas -- Diehl, Alexander D -- Fukuda, Shiro -- Furuno, Masaaki -- Harshbarger, Jayson -- Hasegawa, Akira -- Hori, Fumi -- Ishikawa-Kato, Sachi -- Ishizu, Yuri -- Itoh, Masayoshi -- Kawashima, Tsugumi -- Kojima, Miki -- Kondo, Naoto -- Lizio, Marina -- Meehan, Terrence F -- Mungall, Christopher J -- Murata, Mitsuyoshi -- Nishiyori-Sueki, Hiromi -- Sahin, Serkan -- Nagao-Sato, Sayaka -- Severin, Jessica -- de Hoon, Michiel J L -- Kawai, Jun -- Kasukawa, Takeya -- Lassmann, Timo -- Suzuki, Harukazu -- Kawaji, Hideya -- Summers, Kim M -- Wells, Christine -- FANTOM Consortium -- Hume, David A -- Forrest, Alistair R R -- Sandelin, Albin -- Carninci, Piero -- Hayashizaki, Yoshihide -- P30 CA010815/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2015 Feb 27;347(6225):1010-4. doi: 10.1126/science.1259418. Epub 2015 Feb 12.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25678556" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Cattle ; Cell Differentiation/*genetics ; Dogs ; *Enhancer Elements, Genetic ; *Gene Expression Regulation, Developmental ; Mice ; RNA, Messenger/genetics/metabolism ; Rats ; Stem Cells/*cytology/metabolism ; Transcription Factors/*metabolism ; *Transcription, Genetic
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  • 3
    Publication Date: 2015-06-20
    Description: G protein-coupled receptors (GPCRs) relay diverse extracellular signals into cells by catalyzing nucleotide release from heterotrimeric G proteins, but the mechanism underlying this quintessential molecular signaling event has remained unclear. Here we use atomic-level simulations to elucidate the nucleotide-release mechanism. We find that the G protein alpha subunit Ras and helical domains-previously observed to separate widely upon receptor binding to expose the nucleotide-binding site-separate spontaneously and frequently even in the absence of a receptor. Domain separation is necessary but not sufficient for rapid nucleotide release. Rather, receptors catalyze nucleotide release by favoring an internal structural rearrangement of the Ras domain that weakens its nucleotide affinity. We use double electron-electron resonance spectroscopy and protein engineering to confirm predictions of our computationally determined mechanism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dror, Ron O -- Mildorf, Thomas J -- Hilger, Daniel -- Manglik, Aashish -- Borhani, David W -- Arlow, Daniel H -- Philippsen, Ansgar -- Villanueva, Nicolas -- Yang, Zhongyu -- Lerch, Michael T -- Hubbell, Wayne L -- Kobilka, Brian K -- Sunahara, Roger K -- Shaw, David E -- P30EY00331/EY/NEI NIH HHS/ -- R01EY05216/EY/NEI NIH HHS/ -- R01GM083118/GM/NIGMS NIH HHS/ -- T32 GM008294/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Jun 19;348(6241):1361-5. doi: 10.1126/science.aaa5264.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉D. E. Shaw Research, New York, NY 10036, USA. ron.dror@deshawresearch.com david.shaw@deshawresearch.com. ; D. E. Shaw Research, New York, NY 10036, USA. ; Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA 94305, USA. ; Department of Pharmacology, University of Michigan Medical School, Ann Arbor, MI 48109, USA. ; Jules Stein Eye Institute and Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA. ; D. E. Shaw Research, New York, NY 10036, USA. Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY 10032, USA. ron.dror@deshawresearch.com david.shaw@deshawresearch.com.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26089515" target="_blank"〉PubMed〈/a〉
    Keywords: GTP-Binding Protein alpha Subunits, Gi-Go/*chemistry ; GTP-Binding Protein alpha Subunits, Gs/*chemistry ; Guanine Nucleotide Exchange Factors/*chemistry ; Humans ; Models, Chemical ; Molecular Dynamics Simulation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Receptors, G-Protein-Coupled/*chemistry ; Signal Transduction
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  • 4
    Publication Date: 2015-01-03
    Description: Lysosomes are crucial cellular organelles for human health that function in digestion and recycling of extracellular and intracellular macromolecules. We describe a signaling role for lysosomes that affects aging. In the worm Caenorhabditis elegans, the lysosomal acid lipase LIPL-4 triggered nuclear translocalization of a lysosomal lipid chaperone LBP-8, which promoted longevity by activating the nuclear hormone receptors NHR-49 and NHR-80. We used high-throughput metabolomic analysis to identify several lipids in which abundance was increased in worms constitutively overexpressing LIPL-4. Among them, oleoylethanolamide directly bound to LBP-8 and NHR-80 proteins, activated transcription of target genes of NHR-49 and NHR-80, and promoted longevity in C. elegans. These findings reveal a lysosome-to-nucleus signaling pathway that promotes longevity and suggest a function of lysosomes as signaling organelles in metazoans.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4425353/" 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/PMC4425353/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Folick, Andrew -- Oakley, Holly D -- Yu, Yong -- Armstrong, Eric H -- Kumari, Manju -- Sanor, Lucas -- Moore, David D -- Ortlund, Eric A -- Zechner, Rudolf -- Wang, Meng C -- F30 AG046043/AG/NIA NIH HHS/ -- F30AG046043/AG/NIA NIH HHS/ -- R00 AG034988/AG/NIA NIH HHS/ -- R00AG034988/AG/NIA NIH HHS/ -- R01 AG045183/AG/NIA NIH HHS/ -- R01 DK095750/DK/NIDDK NIH HHS/ -- R01AG045183/AG/NIA NIH HHS/ -- R01DK095750/DK/NIDDK NIH HHS/ -- T32 GM008602/GM/NIGMS NIH HHS/ -- T32GM008602/GM/NIGMS NIH HHS/ -- T32HD055200/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2015 Jan 2;347(6217):83-6. doi: 10.1126/science.1258857.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA. ; Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA. Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA. ; Department of Biochemistry, Discovery and Developmental Therapeutics, Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA 30322, USA. ; Institute of Molecular Biosciences, University of Graz, Graz, A-8010, Austria. ; Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA. ; Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA. Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA. ; Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA. Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA. Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA. wmeng@bcm.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25554789" target="_blank"〉PubMed〈/a〉
    Keywords: Active Transport, Cell Nucleus ; Animals ; Caenorhabditis elegans/genetics/*physiology ; Caenorhabditis elegans Proteins/genetics/*metabolism ; Cell Nucleus/metabolism ; Lipase/metabolism ; Lipid Metabolism ; Longevity/genetics/*physiology ; Lysosomes/*metabolism ; Molecular Chaperones/genetics/*metabolism ; Receptors, Cytoplasmic and Nuclear/metabolism ; Signal Transduction
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  • 5
    Publication Date: 2015-01-09
    Description: The mechanistic target of rapamycin complex 1 (mTORC1) protein kinase is a master growth regulator that responds to multiple environmental cues. Amino acids stimulate, in a Rag-, Ragulator-, and vacuolar adenosine triphosphatase-dependent fashion, the translocation of mTORC1 to the lysosomal surface, where it interacts with its activator Rheb. Here, we identify SLC38A9, an uncharacterized protein with sequence similarity to amino acid transporters, as a lysosomal transmembrane protein that interacts with the Rag guanosine triphosphatases (GTPases) and Ragulator in an amino acid-sensitive fashion. SLC38A9 transports arginine with a high Michaelis constant, and loss of SLC38A9 represses mTORC1 activation by amino acids, particularly arginine. Overexpression of SLC38A9 or just its Ragulator-binding domain makes mTORC1 signaling insensitive to amino acid starvation but not to Rag activity. Thus, SLC38A9 functions upstream of the Rag GTPases and is an excellent candidate for being an arginine sensor for the mTORC1 pathway.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4295826/" 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/PMC4295826/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Shuyu -- Tsun, Zhi-Yang -- Wolfson, Rachel L -- Shen, Kuang -- Wyant, Gregory A -- Plovanich, Molly E -- Yuan, Elizabeth D -- Jones, Tony D -- Chantranupong, Lynne -- Comb, William -- Wang, Tim -- Bar-Peled, Liron -- Zoncu, Roberto -- Straub, Christoph -- Kim, Choah -- Park, Jiwon -- Sabatini, Bernardo L -- Sabatini, David M -- AI47389/AI/NIAID NIH HHS/ -- F30 CA180754/CA/NCI NIH HHS/ -- F31 AG044064/AG/NIA NIH HHS/ -- F31 CA180271/CA/NCI NIH HHS/ -- R01 CA103866/CA/NCI NIH HHS/ -- R37 AI047389/AI/NIAID NIH HHS/ -- T32 GM007287/GM/NIGMS NIH HHS/ -- T32 GM007753/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Jan 9;347(6218):188-94. doi: 10.1126/science.1257132. Epub 2015 Jan 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research and Massachusetts Institute of Technology, Department of Biology, 9 Cambridge Center, Cambridge, MA 02142, USA. Howard Hughes Medical Institute, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Koch Institute for Integrative Cancer Research, 77 Massachusetts Avenue, Cambridge, MA 02139, USA. Broad Institute of Harvard and Massachusetts Institute of Technology, 7 Cambridge Center, Cambridge, MA 02142, USA. ; Harvard Medical School, 260 Longwood Avenue, Boston, MA 02115, USA. ; Department of Neurobiology, Howard Hughes Medical Institute, Harvard Medical School, 220 Longwood Avenue, Boston, MA 02115, USA. ; Whitehead Institute for Biomedical Research and Massachusetts Institute of Technology, Department of Biology, 9 Cambridge Center, Cambridge, MA 02142, USA. Howard Hughes Medical Institute, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Koch Institute for Integrative Cancer Research, 77 Massachusetts Avenue, Cambridge, MA 02139, USA. Broad Institute of Harvard and Massachusetts Institute of Technology, 7 Cambridge Center, Cambridge, MA 02142, USA. sabatini@wi.mit.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25567906" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Transport Systems/chemistry/genetics/*metabolism ; Arginine/deficiency/*metabolism ; HEK293 Cells ; Humans ; Lysosomes/*enzymology ; Molecular Sequence Data ; Monomeric GTP-Binding Proteins/*metabolism ; Multiprotein Complexes/*metabolism ; Protein Structure, Tertiary ; Signal Transduction ; TOR Serine-Threonine Kinases/*metabolism
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  • 6
    Publication Date: 2016-01-23
    Description: The plant root cap, surrounding the very tip of the growing root, perceives and transmits environmental signals to the inner root tissues. In Arabidopsis thaliana, auxin released by the root cap contributes to the regular spacing of lateral organs along the primary root axis. Here, we show that the periodicity of lateral organ induction is driven by recurrent programmed cell death at the most distal edge of the root cap. We suggest that synchronous bursts of cell death in lateral root cap cells release pulses of auxin to surrounding root tissues, establishing the pattern for lateral root formation. The dynamics of root cap turnover may therefore coordinate primary root growth with root branching in order to optimize the uptake of water and nutrients from the soil.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xuan, Wei -- Band, Leah R -- Kumpf, Robert P -- Van Damme, Daniel -- Parizot, Boris -- De Rop, Gieljan -- Opdenacker, Davy -- Moller, Barbara K -- Skorzinski, Noemi -- Njo, Maria F -- De Rybel, Bert -- Audenaert, Dominique -- Nowack, Moritz K -- Vanneste, Steffen -- Beeckman, Tom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2016 Jan 22;351(6271):384-7. doi: 10.1126/science.aad2776.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Systems Biology, Vlaams Instituut voor Biotechnologie (VIB), Technologiepark 927, 9052 Ghent, Belgium. Department of Plant Biotechnology and Bioinformatics, Gent University, Technologiepark 927, 9052 Ghent, Belgium. State Key Laboratory of Crop Genetics and Germplasm Enhancement and MOA Key Laboratory of Plant Nutrition and Fertilization in Lower-Middle Reaches of the Yangtze River, Nanjing Agricultural University, Weigang No. 1, Nanjing 210095, PR China. ; Centre for Plant Integrative Biology, University of Nottingham, Nottingham LE12 5RD, UK. ; Department of Plant Systems Biology, Vlaams Instituut voor Biotechnologie (VIB), Technologiepark 927, 9052 Ghent, Belgium. Department of Plant Biotechnology and Bioinformatics, Gent University, Technologiepark 927, 9052 Ghent, Belgium. ; Max Planck Institute for Developmental Biology, Spemannstrasse 35, 72076 Tubingen, Germany. ; Department of Plant Systems Biology, Vlaams Instituut voor Biotechnologie (VIB), Technologiepark 927, 9052 Ghent, Belgium. Department of Plant Biotechnology and Bioinformatics, Gent University, Technologiepark 927, 9052 Ghent, Belgium. Laboratory of Biochemistry, Wageningen University, Dreijenlaan 3, 6703HA Wageningen, Netherlands. ; Department of Plant Systems Biology, Vlaams Instituut voor Biotechnologie (VIB), Technologiepark 927, 9052 Ghent, Belgium. Department of Plant Biotechnology and Bioinformatics, Gent University, Technologiepark 927, 9052 Ghent, Belgium. tobee@psb.vib-ugent.be.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26798015" target="_blank"〉PubMed〈/a〉
    Keywords: *Apoptosis ; Arabidopsis/cytology/*growth & development/metabolism ; Indoleacetic Acids/*metabolism ; Plant Epidermis/cytology/growth & development/metabolism ; Plant Root Cap/cytology/*growth & development/metabolism ; Receptors, TNF-Related Apoptosis-Inducing Ligand/genetics/metabolism ; Signal Transduction ; Soil ; Water/metabolism
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  • 7
    Publication Date: 2015-08-22
    Description: Plasma membrane depolarization can trigger cell proliferation, but how membrane potential influences mitogenic signaling is uncertain. Here, we show that plasma membrane depolarization induces nanoscale reorganization of phosphatidylserine and phosphatidylinositol 4,5-bisphosphate but not other anionic phospholipids. K-Ras, which is targeted to the plasma membrane by electrostatic interactions with phosphatidylserine, in turn undergoes enhanced nanoclustering. Depolarization-induced changes in phosphatidylserine and K-Ras plasma membrane organization occur in fibroblasts, excitable neuroblastoma cells, and Drosophila neurons in vivo and robustly amplify K-Ras-dependent mitogen-activated protein kinase (MAPK) signaling. Conversely, plasma membrane repolarization disrupts K-Ras nanoclustering and inhibits MAPK signaling. By responding to voltage-induced changes in phosphatidylserine spatiotemporal dynamics, K-Ras nanoclusters set up the plasma membrane as a biological field-effect transistor, allowing membrane potential to control the gain in mitogenic signaling circuits.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4687752/" 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/PMC4687752/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhou, Yong -- Wong, Ching-On -- Cho, Kwang-jin -- van der Hoeven, Dharini -- Liang, Hong -- Thakur, Dhananiay P -- Luo, Jialie -- Babic, Milos -- Zinsmaier, Konrad E -- Zhu, Michael X -- Hu, Hongzhen -- Venkatachalam, Kartik -- Hancock, John F -- R01 NS081301/NS/NINDS NIH HHS/ -- R01NS081301/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2015 Aug 21;349(6250):873-6. doi: 10.1126/science.aaa5619.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Biology and Pharmacology, Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA. ; Department of Diagnostic and Biomedical Sciences, Dental School, University of Texas Health Science Center at Houston, Houston, TX 77054, USA. ; Department of Neuroscience, University of Arizona, Tucson, AZ 85721, USA. ; Department of Integrative Biology and Pharmacology, Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA. Program in Cell and Regulatory Biology, University of Texas Graduate School of Biomedical Sciences, Houston, TX 77030, USA. ; Department of Integrative Biology and Pharmacology, Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA. Program in Cell and Regulatory Biology, University of Texas Graduate School of Biomedical Sciences, Houston, TX 77030, USA. john.f.hancock@uth.tmc.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26293964" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line, Tumor ; Cell Membrane/metabolism/*physiology ; Cricetinae ; Drosophila melanogaster ; Fibroblasts ; *Membrane Potentials ; Mice ; Neurons ; Phosphatidylinositol 4,5-Diphosphate/*metabolism ; Phosphatidylserines/*metabolism ; Signal Transduction ; ras Proteins/*metabolism
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  • 8
    Publication Date: 2015-08-01
    Description: The inefficient clearance of dying cells can lead to abnormal immune responses, such as unresolved inflammation and autoimmune conditions. We show that tumor suppressor p53 controls signaling-mediated phagocytosis of apoptotic cells through its target, Death Domain1alpha (DD1alpha), which suggests that p53 promotes both the proapoptotic pathway and postapoptotic events. DD1alpha appears to function as an engulfment ligand or receptor that engages in homophilic intermolecular interaction at intercellular junctions of apoptotic cells and macrophages, unlike other typical scavenger receptors that recognize phosphatidylserine on the surface of dead cells. DD1alpha-deficient mice showed in vivo defects in clearing dying cells, which led to multiple organ damage indicative of immune dysfunction. p53-induced expression of DD1alpha thus prevents persistence of cell corpses and ensures efficient generation of precise immune responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoon, Kyoung Wan -- Byun, Sanguine -- Kwon, Eunjeong -- Hwang, So-Young -- Chu, Kiki -- Hiraki, Masatsugu -- Jo, Seung-Hee -- Weins, Astrid -- Hakroush, Samy -- Cebulla, Angelika -- Sykes, David B -- Greka, Anna -- Mundel, Peter -- Fisher, David E -- Mandinova, Anna -- Lee, Sam W -- CA142805/CA/NCI NIH HHS/ -- CA149477/CA/NCI NIH HHS/ -- CA80058/CA/NCI NIH HHS/ -- DK062472/DK/NIDDK NIH HHS/ -- DK091218/DK/NIDDK NIH HHS/ -- DK093378/DK/NIDDK NIH HHS/ -- DK57683/DK/NIDDK NIH HHS/ -- S10RR027673/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2015 Jul 31;349(6247):1261669. doi: 10.1126/science.1261669.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cutaneous Biology Research Center, Massachusetts General Hospital and Harvard Medical School, Building 149, 13th Street, Charlestown, MA 02129, USA. ; Department of Pathology, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA 02115, USA. ; Division of Nephrology, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114, USA. ; Center for Regenerative Medicine and Technology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA. ; Department of Medicine, Glom-NExT Center for Glomerular Kidney Disease and Novel Experimental Therapeutics, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA 02115, USA. ; Cutaneous Biology Research Center, Massachusetts General Hospital and Harvard Medical School, Building 149, 13th Street, Charlestown, MA 02129, USA. Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, MA 02142, USA. ; Cutaneous Biology Research Center, Massachusetts General Hospital and Harvard Medical School, Building 149, 13th Street, Charlestown, MA 02129, USA. Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, MA 02142, USA. swlee@mgh.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26228159" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Apoptosis/genetics/*immunology ; Autoimmune Diseases/genetics/immunology ; Cell Line, Tumor ; Female ; Humans ; Inflammation/genetics/immunology ; Macrophages/immunology ; Male ; Membrane Proteins/genetics/*metabolism ; Mice ; Mice, Knockout ; Molecular Sequence Data ; Phagocytosis/*immunology ; Phosphatidylserines/*metabolism ; Signal Transduction ; Tumor Suppressor Protein p53/*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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  • 9
    Publication Date: 2016-04-09
    Description: Activation of various cell surface receptors triggers the reorganization of downstream signaling molecules into micrometer- or submicrometer-sized clusters. However, the functional consequences of such clustering have been unclear. We biochemically reconstituted a 12-component signaling pathway on model membranes, beginning with T cell receptor (TCR) activation and ending with actin assembly. When TCR phosphorylation was triggered, downstream signaling proteins spontaneously separated into liquid-like clusters that promoted signaling outputs both in vitro and in human Jurkat T cells. Reconstituted clusters were enriched in kinases but excluded phosphatases and enhanced actin filament assembly by recruiting and organizing actin regulators. These results demonstrate that protein phase separation can create a distinct physical and biochemical compartment that facilitates signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Su, Xiaolei -- Ditlev, Jonathon A -- Hui, Enfu -- Xing, Wenmin -- Banjade, Sudeep -- Okrut, Julia -- King, David S -- Taunton, Jack -- Rosen, Michael K -- Vale, Ronald D -- 5-F32-DK101188/DK/NIDDK NIH HHS/ -- F32 DK101188/DK/NIDDK NIH HHS/ -- R01 GM056322/GM/NIGMS NIH HHS/ -- R01-GM56322/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2016 Apr 29;352(6285):595-9. doi: 10.1126/science.aad9964. Epub 2016 Apr 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute (HHMI) Summer Institute, Marine Biological Laboratory, Woods Hole, MA 02543, USA. Department of Cellular and Molecular Pharmacology and Howard Hughes Medical Institute, University of California, San Francisco, CA 94158, USA. ; Howard Hughes Medical Institute (HHMI) Summer Institute, Marine Biological Laboratory, Woods Hole, MA 02543, USA. Department of Biophysics and Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. ; HHMI Mass Spectrometry Laboratory and Department of Molecular and Cellular Biology, University of California, Berkeley, CA 94720, USA. ; Howard Hughes Medical Institute (HHMI) Summer Institute, Marine Biological Laboratory, Woods Hole, MA 02543, USA. Department of Biophysics and Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. ron.vale@ucsf.edu michael.rosen@utsouthwestern.edu. ; Howard Hughes Medical Institute (HHMI) Summer Institute, Marine Biological Laboratory, Woods Hole, MA 02543, USA. Department of Cellular and Molecular Pharmacology and Howard Hughes Medical Institute, University of California, San Francisco, CA 94158, USA. ron.vale@ucsf.edu michael.rosen@utsouthwestern.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27056844" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/*metabolism ; Adaptor Proteins, Signal Transducing/*metabolism ; Fluorescence Recovery After Photobleaching ; Humans ; Jurkat Cells ; Membrane Proteins/*metabolism ; Mitogen-Activated Protein Kinase Kinases ; Phosphorylation ; Polymerization ; Receptors, Antigen, T-Cell/*agonists ; Signal Transduction ; T-Lymphocytes/*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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  • 10
    Publication Date: 2016-03-19
    Description: Systemic inflammation, which results from the massive release of proinflammatory molecules into the circulatory system, is a major risk factor for severe illness, but the precise mechanisms underlying its control are not fully understood. We observed that prostaglandin E2 (PGE2), through its receptor EP4, is down-regulated in human systemic inflammatory disease. Mice with reduced PGE2 synthesis develop systemic inflammation, associated with translocation of gut bacteria, which can be prevented by treatment with EP4 agonists. Mechanistically, we demonstrate that PGE2-EP4 signaling acts directly on type 3 innate lymphoid cells (ILCs), promoting their homeostasis and driving them to produce interleukin-22 (IL-22). Disruption of the ILC-IL-22 axis impairs PGE2-mediated inhibition of systemic inflammation. Hence, the ILC-IL-22 axis is essential in protecting against gut barrier dysfunction, enabling PGE2-EP4 signaling to impede systemic inflammation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4841390/" 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/PMC4841390/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duffin, Rodger -- O'Connor, Richard A -- Crittenden, Siobhan -- Forster, Thorsten -- Yu, Cunjing -- Zheng, Xiaozhong -- Smyth, Danielle -- Robb, Calum T -- Rossi, Fiona -- Skouras, Christos -- Tang, Shaohui -- Richards, James -- Pellicoro, Antonella -- Weller, Richard B -- Breyer, Richard M -- Mole, Damian J -- Iredale, John P -- Anderton, Stephen M -- Narumiya, Shuh -- Maizels, Rick M -- Ghazal, Peter -- Howie, Sarah E -- Rossi, Adriano G -- Yao, Chengcan -- 106122/Wellcome Trust/United Kingdom -- BB/K091121/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- DK37097/DK/NIDDK NIH HHS/ -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2016 Mar 18;351(6279):1333-8. doi: 10.1126/science.aad9903.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council (MRC) Centre for Inflammation Research, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh EH16 4TJ, UK. ; Division of Pathway Medicine, Edinburgh Infectious Diseases, The University of Edinburgh, Edinburgh EH16 4SB, UK. ; Institute for Immunology and Infection Research, The University of Edinburgh, Edinburgh EH9 3JT, UK. ; MRC Centre for Regenerative Medicine, The University of Edinburgh, Edinburgh EH16 4UU, UK. ; Department of Gastroenterology, First Affiliated Hospital of Jinan University, Guangzhou 510630, China. ; Department of Veterans Affairs, Tennessee Valley Health Authority, Nashville, TN 37212, USA. Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA. ; Center for Innovation in Immunoregulative Technology and Therapeutics (AK Project), Kyoto University Graduate School of Medicine, Kyoto 606-8501, Japan. Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Tokyo 102-0075, Japan. ; Division of Pathway Medicine, Edinburgh Infectious Diseases, The University of Edinburgh, Edinburgh EH16 4SB, UK. Centre for Synthetic and Systems Biology (SynthSys), The University of Edinburgh, Edinburgh EH9 3JD, UK. ; Medical Research Council (MRC) Centre for Inflammation Research, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh EH16 4TJ, UK. chengcan.yao@ed.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26989254" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacterial Infections/genetics/immunology ; Dinoprostone/*immunology ; Gene Expression ; Humans ; Immunity, Innate ; Inflammation/drug therapy/*immunology/microbiology ; Interleukins/*immunology ; Intestines/*immunology/microbiology ; Lymphocytes/*immunology ; Mice ; Receptors, Prostaglandin E, EP4 Subtype/antagonists & ; inhibitors/genetics/*immunology ; Signal Transduction
    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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