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  • 11
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    Rapamycin-induced insulin resistance is mediated by mTORC2 loss and uncoupled from longevity (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-31
    Description: Rapamycin, an inhibitor of mechanistic target of rapamycin complex 1 (mTORC1), extends the life spans of yeast, flies, and mice. Calorie restriction, which increases life span and insulin sensitivity, is proposed to function by inhibition of mTORC1, yet paradoxically, chronic administration of rapamycin substantially impairs glucose tolerance and insulin action. We demonstrate that rapamycin disrupted a second mTOR complex, mTORC2, in vivo and that mTORC2 was required for the insulin-mediated suppression of hepatic gluconeogenesis. Further, decreased mTORC1 signaling was sufficient to extend life span independently from changes in glucose homeostasis, as female mice heterozygous for both mTOR and mLST8 exhibited decreased mTORC1 activity and extended life span but had normal glucose tolerance and insulin sensitivity. Thus, mTORC2 disruption is an important mediator of the effects of rapamycin in vivo.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3324089/" 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/PMC3324089/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lamming, Dudley W -- Ye, Lan -- Katajisto, Pekka -- Goncalves, Marcus D -- Saitoh, Maki -- Stevens, Deanna M -- Davis, James G -- Salmon, Adam B -- Richardson, Arlan -- Ahima, Rexford S -- Guertin, David A -- Sabatini, David M -- Baur, Joseph A -- 1F32AG032833-01A1/AG/NIA NIH HHS/ -- CA129105/CA/NCI NIH HHS/ -- F32 AG032833/AG/NIA NIH HHS/ -- P30DK19525/DK/NIDDK NIH HHS/ -- R01 CA129105/CA/NCI NIH HHS/ -- R01 CA129105-05/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Mar 30;335(6076):1638-43. doi: 10.1126/science.1215135.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22461615" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue, White/metabolism ; Animals ; Carrier Proteins/genetics/metabolism ; Female ; Gluconeogenesis ; Glucose/metabolism ; Glucose Clamp Technique ; Homeostasis ; Insulin/administration & dosage/blood ; *Insulin Resistance ; Liver/metabolism ; *Longevity ; Male ; Mice ; Mice, Inbred C57BL ; Multiprotein Complexes ; Muscle, Skeletal/metabolism ; Phosphorylation ; Proteins/antagonists & inhibitors/metabolism ; Proto-Oncogene Proteins c-akt/metabolism ; Signal Transduction ; Sirolimus/*pharmacology ; TOR Serine-Threonine Kinases/genetics/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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  • 12
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    Shear-activated nanotherapeutics for drug targeting to obstructed blood vessels (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-07-07
    Description: Obstruction of critical blood vessels due to thrombosis or embolism is a leading cause of death worldwide. Here, we describe a biomimetic strategy that uses high shear stress caused by vascular narrowing as a targeting mechanism--in the same way platelets do--to deliver drugs to obstructed blood vessels. Microscale aggregates of nanoparticles were fabricated to break up into nanoscale components when exposed to abnormally high fluid shear stress. When coated with tissue plasminogen activator and administered intravenously in mice, these shear-activated nanotherapeutics induce rapid clot dissolution in a mesenteric injury model, restore normal flow dynamics, and increase survival in an otherwise fatal mouse pulmonary embolism model. This biophysical strategy for drug targeting, which lowers required doses and minimizes side effects while maximizing drug efficacy, offers a potential new approach for treatment of life-threatening diseases that result from acute vascular occlusion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Korin, Netanel -- Kanapathipillai, Mathumai -- Matthews, Benjamin D -- Crescente, Marilena -- Brill, Alexander -- Mammoto, Tadanori -- Ghosh, Kaustabh -- Jurek, Samuel -- Bencherif, Sidi A -- Bhatta, Deen -- Coskun, Ahmet U -- Feldman, Charles L -- Wagner, Denisa D -- Ingber, Donald E -- New York, N.Y. -- Science. 2012 Aug 10;337(6095):738-42. doi: 10.1126/science.1217815. Epub 2012 Jul 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22767894" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biomimetic Materials ; Blood Circulation ; Drug Delivery Systems/*methods ; Fibrinolytic Agents/*administration & dosage ; Hemodynamics ; Hemorheology ; Lactic Acid ; Male ; Mesenteric Arteries ; Mesenteric Vascular Occlusion/*drug therapy ; Mice ; Mice, Inbred C57BL ; Microfluidic Analytical Techniques ; Models, Anatomic ; *Nanoparticles ; Polyglycolic Acid ; Pulmonary Embolism/*drug therapy ; Stress, Mechanical ; Thrombosis/*drug therapy/prevention & control ; Tissue Plasminogen Activator/*administration & dosage
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 13
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    Clonal selection drives genetic divergence of metastatic medulloblastoma (2012)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2012-02-22
    Description: Medulloblastoma, the most common malignant paediatric brain tumour, arises in the cerebellum and disseminates through the cerebrospinal fluid in the leptomeningeal space to coat the brain and spinal cord. Dissemination, a marker of poor prognosis, is found in up to 40% of children at diagnosis and in most children at the time of recurrence. Affected children therefore are treated with radiation to the entire developing brain and spinal cord, followed by high-dose chemotherapy, with the ensuing deleterious effects on the developing nervous system. The mechanisms of dissemination through the cerebrospinal fluid are poorly studied, and medulloblastoma metastases have been assumed to be biologically similar to the primary tumour. Here we show that in both mouse and human medulloblastoma, the metastases from an individual are extremely similar to each other but are divergent from the matched primary tumour. Clonal genetic events in the metastases can be demonstrated in a restricted subclone of the primary tumour, suggesting that only rare cells within the primary tumour have the ability to metastasize. Failure to account for the bicompartmental nature of metastatic medulloblastoma could be a major barrier to the development of effective targeted therapies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3288636/" 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/PMC3288636/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Xiaochong -- Northcott, Paul A -- Dubuc, Adrian -- Dupuy, Adam J -- Shih, David J H -- Witt, Hendrik -- Croul, Sidney -- Bouffet, Eric -- Fults, Daniel W -- Eberhart, Charles G -- Garzia, Livia -- Van Meter, Timothy -- Zagzag, David -- Jabado, Nada -- Schwartzentruber, Jeremy -- Majewski, Jacek -- Scheetz, Todd E -- Pfister, Stefan M -- Korshunov, Andrey -- Li, Xiao-Nan -- Scherer, Stephen W -- Cho, Yoon-Jae -- Akagi, Keiko -- MacDonald, Tobey J -- Koster, Jan -- McCabe, Martin G -- Sarver, Aaron L -- Collins, V Peter -- Weiss, William A -- Largaespada, David A -- Collier, Lara S -- Taylor, Michael D -- K01CA122183/CA/NCI NIH HHS/ -- NS055089/NS/NINDS NIH HHS/ -- R01 CA108622/CA/NCI NIH HHS/ -- R01 CA113636/CA/NCI NIH HHS/ -- R01 CA148699/CA/NCI NIH HHS/ -- R01 CA148699-03/CA/NCI NIH HHS/ -- R01 NS055089/NS/NINDS NIH HHS/ -- R01CA148699/CA/NCI NIH HHS/ -- Canadian Institutes of Health Research/Canada -- England -- Nature. 2012 Feb 15;482(7386):529-33. doi: 10.1038/nature10825.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Arthur and Sonia Labatt Brain Tumour Research Center, Program in Developmental and Stem Cell Biology, The Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22343890" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Clonal Evolution/*genetics ; CpG Islands/genetics ; DNA Methylation ; DNA Transposable Elements/genetics ; Disease Models, Animal ; Genes, p53/genetics ; Germ-Line Mutation/genetics ; Humans ; Li-Fraumeni Syndrome/complications/genetics ; Medulloblastoma/complications/*genetics/*pathology ; Mice ; Mutagenesis, Insertional ; Neoplasm Metastasis/*genetics/*pathology ; Survival Rate
    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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  • 14
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    Medulloblastoma exome sequencing uncovers subtype-specific somatic mutations (2012)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2012-07-24
    Description: Medulloblastomas are the most common malignant brain tumours in children. Identifying and understanding the genetic events that drive these tumours is critical for the development of more effective diagnostic, prognostic and therapeutic strategies. Recently, our group and others described distinct molecular subtypes of medulloblastoma on the basis of transcriptional and copy number profiles. Here we use whole-exome hybrid capture and deep sequencing to identify somatic mutations across the coding regions of 92 primary medulloblastoma/normal pairs. Overall, medulloblastomas have low mutation rates consistent with other paediatric tumours, with a median of 0.35 non-silent mutations per megabase. We identified twelve genes mutated at statistically significant frequencies, including previously known mutated genes in medulloblastoma such as CTNNB1, PTCH1, MLL2, SMARCA4 and TP53. Recurrent somatic mutations were newly identified in an RNA helicase gene, DDX3X, often concurrent with CTNNB1 mutations, and in the nuclear co-repressor (N-CoR) complex genes GPS2, BCOR and LDB1. We show that mutant DDX3X potentiates transactivation of a TCF promoter and enhances cell viability in combination with mutant, but not wild-type, beta-catenin. Together, our study reveals the alteration of WNT, hedgehog, histone methyltransferase and now N-CoR pathways across medulloblastomas and within specific subtypes of this disease, and nominates the RNA helicase DDX3X as a component of pathogenic beta-catenin signalling in medulloblastoma.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3413789/" 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/PMC3413789/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pugh, Trevor J -- Weeraratne, Shyamal Dilhan -- Archer, Tenley C -- Pomeranz Krummel, Daniel A -- Auclair, Daniel -- Bochicchio, James -- Carneiro, Mauricio O -- Carter, Scott L -- Cibulskis, Kristian -- Erlich, Rachel L -- Greulich, Heidi -- Lawrence, Michael S -- Lennon, Niall J -- McKenna, Aaron -- Meldrim, James -- Ramos, Alex H -- Ross, Michael G -- Russ, Carsten -- Shefler, Erica -- Sivachenko, Andrey -- Sogoloff, Brian -- Stojanov, Petar -- Tamayo, Pablo -- Mesirov, Jill P -- Amani, Vladimir -- Teider, Natalia -- Sengupta, Soma -- Francois, Jessica Pierre -- Northcott, Paul A -- Taylor, Michael D -- Yu, Furong -- Crabtree, Gerald R -- Kautzman, Amanda G -- Gabriel, Stacey B -- Getz, Gad -- Jager, Natalie -- Jones, David T W -- Lichter, Peter -- Pfister, Stefan M -- Roberts, Thomas M -- Meyerson, Matthew -- Pomeroy, Scott L -- Cho, Yoon-Jae -- CA050661/CA/NCI NIH HHS/ -- L40 NS063706/NS/NINDS NIH HHS/ -- P30 HD018655/HD/NICHD NIH HHS/ -- P30 HD18655/HD/NICHD NIH HHS/ -- R01 CA030002/CA/NCI NIH HHS/ -- R01 CA105607/CA/NCI NIH HHS/ -- R01 CA109467/CA/NCI NIH HHS/ -- R01 CA148699/CA/NCI NIH HHS/ -- R01 CA154480/CA/NCI NIH HHS/ -- R01 NS046789/NS/NINDS NIH HHS/ -- R01CA105607/CA/NCI NIH HHS/ -- R01CA109467/CA/NCI NIH HHS/ -- R01CA148699/CA/NCI NIH HHS/ -- R25 NS070682/NS/NINDS NIH HHS/ -- R25NS070682/NS/NINDS NIH HHS/ -- U54 HG003067/HG/NHGRI NIH HHS/ -- U54HG003067/HG/NHGRI NIH HHS/ -- Canadian Institutes of Health Research/Canada -- Howard Hughes Medical Institute/ -- England -- Nature. 2012 Aug 2;488(7409):106-10. doi: 10.1038/nature11329.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22820256" target="_blank"〉PubMed〈/a〉
    Keywords: Cerebellar Neoplasms/classification/*genetics ; Child ; DEAD-box RNA Helicases/chemistry/genetics/metabolism ; DNA Helicases/chemistry/genetics ; DNA-Binding Proteins/genetics ; Exome/*genetics ; Genome, Human/*genetics ; Hedgehog Proteins/metabolism ; Histone-Lysine N-Methyltransferase/genetics/metabolism ; Humans ; Intracellular Signaling Peptides and Proteins/genetics ; LIM Domain Proteins/genetics ; Medulloblastoma/classification/*genetics ; Models, Molecular ; Mutation/*genetics ; Neoplasm Proteins/genetics ; Nuclear Proteins/chemistry/genetics ; Promoter Regions, Genetic/genetics ; Protein Structure, Tertiary/genetics ; Proto-Oncogene Proteins/genetics ; Receptors, Cell Surface/genetics ; Repressor Proteins/genetics ; Signal Transduction ; TCF Transcription Factors/metabolism ; Transcription Factors/chemistry/genetics ; Tumor Suppressor Protein p53/genetics ; Wnt Proteins/metabolism ; beta Catenin/genetics/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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  • 15
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    Novel mutations target distinct subgroups of medulloblastoma (2012)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2012-06-23
    Description: Medulloblastoma is a malignant childhood brain tumour comprising four discrete subgroups. Here, to identify mutations that drive medulloblastoma, we sequenced the entire genomes of 37 tumours and matched normal blood. One-hundred and thirty-six genes harbouring somatic mutations in this discovery set were sequenced in an additional 56 medulloblastomas. Recurrent mutations were detected in 41 genes not yet implicated in medulloblastoma; several target distinct components of the epigenetic machinery in different disease subgroups, such as regulators of H3K27 and H3K4 trimethylation in subgroups 3 and 4 (for example, KDM6A and ZMYM3), and CTNNB1-associated chromatin re-modellers in WNT-subgroup tumours (for example, SMARCA4 and CREBBP). Modelling of mutations in mouse lower rhombic lip progenitors that generate WNT-subgroup tumours identified genes that maintain this cell lineage (DDX3X), as well as mutated genes that initiate (CDH1) or cooperate (PIK3CA) in tumorigenesis. These data provide important new insights into the pathogenesis of medulloblastoma subgroups and highlight targets for therapeutic development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3412905/" 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/PMC3412905/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robinson, Giles -- Parker, Matthew -- Kranenburg, Tanya A -- Lu, Charles -- Chen, Xiang -- Ding, Li -- Phoenix, Timothy N -- Hedlund, Erin -- Wei, Lei -- Zhu, Xiaoyan -- Chalhoub, Nader -- Baker, Suzanne J -- Huether, Robert -- Kriwacki, Richard -- Curley, Natasha -- Thiruvenkatam, Radhika -- Wang, Jianmin -- Wu, Gang -- Rusch, Michael -- Hong, Xin -- Becksfort, Jared -- Gupta, Pankaj -- Ma, Jing -- Easton, John -- Vadodaria, Bhavin -- Onar-Thomas, Arzu -- Lin, Tong -- Li, Shaoyi -- Pounds, Stanley -- Paugh, Steven -- Zhao, David -- Kawauchi, Daisuke -- Roussel, Martine F -- Finkelstein, David -- Ellison, David W -- Lau, Ching C -- Bouffet, Eric -- Hassall, Tim -- Gururangan, Sridharan -- Cohn, Richard -- Fulton, Robert S -- Fulton, Lucinda L -- Dooling, David J -- Ochoa, Kerri -- Gajjar, Amar -- Mardis, Elaine R -- Wilson, Richard K -- Downing, James R -- Zhang, Jinghui -- Gilbertson, Richard J -- P01 CA096832/CA/NCI NIH HHS/ -- P01CA96832/CA/NCI NIH HHS/ -- P30 CA021765/CA/NCI NIH HHS/ -- P30CA021765/CA/NCI NIH HHS/ -- R01 CA129541/CA/NCI NIH HHS/ -- R01CA129541/CA/NCI NIH HHS/ -- England -- Nature. 2012 Aug 2;488(7409):43-8. doi: 10.1038/nature11213.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉St Jude Children's Research Hospital, Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22722829" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CREB-Binding Protein/genetics ; Cadherins/genetics ; Cdh1 Proteins ; Cell Cycle Proteins/deficiency/genetics ; Cell Lineage ; Cerebellar Neoplasms/*classification/*genetics/pathology ; Child ; DEAD-box RNA Helicases/genetics ; DNA Copy Number Variations ; DNA Helicases/genetics ; DNA Mutational Analysis ; Disease Models, Animal ; Genome, Human/genetics ; Genomics ; Hedgehog Proteins/metabolism ; Histone Demethylases/genetics ; Histones/metabolism ; Humans ; Medulloblastoma/*classification/*genetics/pathology ; Methylation ; Mice ; Mutation/*genetics ; Nuclear Proteins/genetics ; Phosphatidylinositol 3-Kinases/genetics ; Transcription Factors/genetics ; Wnt Proteins/metabolism ; beta Catenin/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 16
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    CaMKII determines mitochondrial stress responses in heart (2012)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2012-10-12
    Description: Myocardial cell death is initiated by excessive mitochondrial Ca(2+) entry causing Ca(2+) overload, mitochondrial permeability transition pore (mPTP) opening and dissipation of the mitochondrial inner membrane potential (DeltaPsim). However, the signalling pathways that control mitochondrial Ca(2+) entry through the inner membrane mitochondrial Ca(2+) uniporter (MCU) are not known. The multifunctional Ca(2+)/calmodulin-dependent protein kinase II (CaMKII) is activated in ischaemia reperfusion, myocardial infarction and neurohumoral injury, common causes of myocardial death and heart failure; these findings suggest that CaMKII could couple disease stress to mitochondrial injury. Here we show that CaMKII promotes mPTP opening and myocardial death by increasing MCU current (I(MCU)). Mitochondrial-targeted CaMKII inhibitory protein or cyclosporin A, an mPTP antagonist with clinical efficacy in ischaemia reperfusion injury, equivalently prevent mPTP opening, DeltaPsim deterioration and diminish mitochondrial disruption and programmed cell death in response to ischaemia reperfusion injury. Mice with myocardial and mitochondrial-targeted CaMKII inhibition have reduced I(MCU) and are resistant to ischaemia reperfusion injury, myocardial infarction and neurohumoral injury, suggesting that pathological actions of CaMKII are substantially mediated by increasing I(MCU). Our findings identify CaMKII activity as a central mechanism for mitochondrial Ca(2+) entry in myocardial cell death, and indicate that mitochondrial-targeted CaMKII inhibition could prevent or reduce myocardial death and heart failure in response to common experimental forms of pathophysiological stress.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3471377/" 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/PMC3471377/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Joiner, Mei-Ling A -- Koval, Olha M -- Li, Jingdong -- He, B Julie -- Allamargot, Chantal -- Gao, Zhan -- Luczak, Elizabeth D -- Hall, Duane D -- Fink, Brian D -- Chen, Biyi -- Yang, Jinying -- Moore, Steven A -- Scholz, Thomas D -- Strack, Stefan -- Mohler, Peter J -- Sivitz, William I -- Song, Long-Sheng -- Anderson, Mark E -- R01 HL062494/HL/NHLBI NIH HHS/ -- R01 HL070250/HL/NHLBI NIH HHS/ -- R01 HL079031/HL/NHLBI NIH HHS/ -- R01 HL083422/HL/NHLBI NIH HHS/ -- R01 HL084583/HL/NHLBI NIH HHS/ -- R01 HL090905/HL/NHLBI NIH HHS/ -- R01 HL113001/HL/NHLBI NIH HHS/ -- R01 HL62494/HL/NHLBI NIH HHS/ -- R01 HL70250/HL/NHLBI NIH HHS/ -- R56 NS056244/NS/NINDS NIH HHS/ -- England -- Nature. 2012 Nov 8;491(7423):269-73. doi: 10.1038/nature11444. Epub 2012 Oct 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine and Cardiovascular Center, Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242, USA. mei-ling-joiner@uiowa.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23051746" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis/drug effects ; Calcium/*metabolism/pharmacology ; Calcium-Calmodulin-Dependent Protein Kinase Type 2/antagonists & ; inhibitors/chemistry/*metabolism ; Cyclosporine/pharmacology ; Female ; Heart/drug effects/physiopathology ; Heart Failure/drug therapy/prevention & control ; Membrane Potential, Mitochondrial/drug effects/physiology ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Mitochondria, Heart/enzymology/*metabolism/*pathology ; Mitochondrial Membrane Transport Proteins/metabolism ; Myocardial Infarction/drug therapy/prevention & control ; Myocardium/*enzymology/metabolism/*pathology ; Reperfusion Injury/enzymology/metabolism/pathology/prevention & control ; Serine/metabolism ; *Stress, Physiological/drug effects
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 17
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    Interactions between commensal fungi and the C-type lectin receptor Dectin-1 influence colitis (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-08
    Description: The intestinal microflora, typically equated with bacteria, influences diseases such as obesity and inflammatory bowel disease. Here, we show that the mammalian gut contains a rich fungal community that interacts with the immune system through the innate immune receptor Dectin-1. Mice lacking Dectin-1 exhibited increased susceptibility to chemically induced colitis, which was the result of altered responses to indigenous fungi. In humans, we identified a polymorphism in the gene for Dectin-1 (CLEC7A) that is strongly linked to a severe form of ulcerative colitis. Together, our findings reveal a eukaryotic fungal community in the gut (the "mycobiome") that coexists with bacteria and substantially expands the repertoire of organisms interacting with the intestinal immune system to influence health and disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3432565/" 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/PMC3432565/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Iliev, Iliyan D -- Funari, Vincent A -- Taylor, Kent D -- Nguyen, Quoclinh -- Reyes, Christopher N -- Strom, Samuel P -- Brown, Jordan -- Becker, Courtney A -- Fleshner, Phillip R -- Dubinsky, Marla -- Rotter, Jerome I -- Wang, Hanlin L -- McGovern, Dermot P B -- Brown, Gordon D -- Underhill, David M -- 086558/Wellcome Trust/United Kingdom -- AI071116/AI/NIAID NIH HHS/ -- P01-DK046763/DK/NIDDK NIH HHS/ -- R01 DK093426/DK/NIDDK NIH HHS/ -- UL1 RR033176/RR/NCRR NIH HHS/ -- UL1 TR000124/TR/NCATS NIH HHS/ -- UL1RR033176/RR/NCRR NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2012 Jun 8;336(6086):1314-7. doi: 10.1126/science.1221789. Epub 2012 Jun 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22674328" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Fungal/blood ; Candida tropicalis/immunology/isolation & purification/pathogenicity/physiology ; Colitis, Ulcerative/chemically induced/*immunology/*microbiology ; Colon/immunology/*microbiology ; Colony Count, Microbial ; Dextran Sulfate ; Disease Susceptibility ; Female ; Fungi/classification/*immunology/isolation & purification/*physiology ; Haplotypes ; Humans ; Immunity, Innate ; Immunity, Mucosal ; Intestinal Mucosa/immunology/*microbiology ; Intestines/immunology/microbiology ; Lectins, C-Type/deficiency/*genetics/*metabolism ; Metagenome ; Mice ; Mice, Inbred C57BL ; Polymorphism, Single Nucleotide
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    Fast-Particle-Driven Alfvénic Modes in a Reversed Field Pinch (2012)
    American Physical Society (APS)
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    Publication Date: 2012-09-14
    Description: Author(s): J. J. Koliner, C. B. Forest, J. S. Sarff, J. K. Anderson, D. Liu, M. D. Nornberg, J. Waksman, L. Lin, D. L. Brower, W. X. Ding, and D. A. Spong Alfvénic modes are observed due to neutral beam injection for the first time in a reversed field pinch plasma. Modeling of the beam deposition and slowing down shows that the velocity and radial localization are high. This allows instability drive from inverse Landau damping of a bump-on-tail in the... [Phys. Rev. Lett. 109, 115003] Published Thu Sep 13, 2012
    Keywords: Plasma and Beam Physics
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
    Published by American Physical Society (APS)
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    Impeding Hohlraum Plasma Stagnation in Inertial-Confinement Fusion (2012)
    American Physical Society (APS)
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    Publication Date: 2012-01-12
    Description: Author(s): C. K. Li, F. H. Séguin, J. A. Frenje, M. J. Rosenberg, H. G. Rinderknecht, A. B. Zylstra, R. D. Petrasso, P. A. Amendt, O. L. Landen, A. J. Mackinnon, R. P. J. Town, S. C. Wilks, R. Betti, D. D. Meyerhofer, J. M. Soures, J. Hund, J. D. Kilkenny, and A. Nikroo [Phys. Rev. Lett. 108, 025001] Published Wed Jan 11, 2012
    Keywords: Plasma and Beam Physics
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
    Published by American Physical Society (APS)
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    Dynamics of Relativistic Laser-Plasma Interaction on Solid Targets (2012)
    American Physical Society (APS)
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    Publication Date: 2012-10-06
    Description: Author(s): Y. Ping, A. J. Kemp, L. Divol, M. H. Key, P. K. Patel, K. U. Akli, F. N. Beg, S. Chawla, C. D. Chen, R. R. Freeman, D. Hey, D. P. Higginson, L. C. Jarrott, G. E. Kemp, A. Link, H. S. McLean, H. Sawada, R. B. Stephens, D. Turnbull, B. Westover, and S. C. Wilks A novel time-resolved diagnostic is used to record the critical surface motion during picosecond-scale relativistic laser interaction with a solid target. Single-shot measurements of the specular light show a redshift decreasing with time during the interaction, corresponding to a slowing-down of th... [Phys. Rev. Lett. 109, 145006] Published Fri Oct 05, 2012
    Keywords: Plasma and Beam Physics
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
    Published by American Physical Society (APS)
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