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  • 1
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    Heat shock is lethal to fibroblasts microinjected with antibodies against hsp70 (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-10-21
    Description: Synthesis of a small group of highly conserved proteins in response to elevated temperature and other agents that induce stress is a universal feature of prokaryotic and eukaryotic cells. Although correlative evidence suggests that these proteins play a role in enhancing survival during and after stress, there is no direct evidence to support this in mammalian cells. To assess the role of the most highly conserved heat shock protein (hsp) family during heat shock, affinity-purified monoclonal antibodies to hsp70 were introduced into fibroblasts by needle microinjection. In addition to impairing the heat-induced translocation of hsp70 proteins into the nucleus after mild heat shock treatment, injected cells were unable to survive a brief incubation at 45 degrees C. Cells injected with control antibodies survived a similar heat shock. These results indicate that functional hsp70 is required for survival of these cells during and after thermal stress.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Riabowol, K T -- Mizzen, L A -- Welch, W J -- GM33551/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Oct 21;242(4877):433-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, NY 11724.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175665" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/administration & dosage ; Antigen-Antibody Complex ; Cell Survival ; Fibroblasts/cytology ; Heat-Shock Proteins/immunology/*physiology ; *Hot Temperature ; Microinjections ; Rats
    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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  • 2
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    Interaction of Hsp 70 with newly synthesized proteins: implications for protein folding and assembly (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-05-18
    Description: The 70-kilodalton family of heat shock proteins (Hsp 70) has been implicated in posttranslational protein assembly and translocation. Binding of cytosolic forms of Hsp 70 (Hsp 72,73) with nascent proteins in the normal cell was investigated and found to be transient and adenosine triphosphate (ATP)-dependent. Interaction of Hsp 72,73 with newly synthesized proteins appeared to occur cotranslationally, because nascent polypeptides released prematurely from polysomes in vivo can be isolated in a complex with Hsp 72,73. Moreover, isolation of polysomes from short-term [35S]Met-labeled cells (pulsed) revealed that Hsp 72,73 associated with nascent polypeptide chains. In cells experiencing stress, newly synthesized proteins coimmunoprecipitated with Hsp 72,73; however, in contrast to normal cells, interaction with Hsp 72,73 was not transient. A model consistent with these data suggests that under normal growth conditions, cytosolic Hsp 72,73 interact transiently with nascent polypeptides to facilitate proper folding, and that metabolic stress interferes with these events.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beckmann, R P -- Mizzen, L E -- Welch, W J -- GM 33551/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1990 May 18;248(4957):850-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2188360" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Azetidinecarboxylic Acid/pharmacology ; Cycloheximide/pharmacology ; HeLa Cells/metabolism ; Heat-Shock Proteins/*metabolism ; Humans ; Immunosorbent Techniques ; Macromolecular Substances ; Molecular Weight ; *Protein Biosynthesis ; Protein Conformation ; Protein Processing, Post-Translational ; Proteins/metabolism ; Puromycin/pharmacology
    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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  • 3
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    Recognition by human V gamma 9/V delta 2 T cells of a GroEL homolog on Daudi Burkitt's lymphoma cells (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-11-30
    Description: All human gamma delta T cells coexpressing the products of the variable (V) region T cell receptor (TCR) gene segments V gamma 9 and V delta 2 recognize antigens from mycobacterial extracts and Daudi cells. Exogenous and endogenous ligands on the cell surface, homologous to the groEL heat shock family, induced reactivities that resembled superantigen responses in this major subset of human peripheral blood gamma delta T cells. Stimulation of human V gamma 9/V delta 2 T cells is not restricted by human leukocyte antigens (HLA), including nonpolymorphic beta 2-microglobulin (beta 2M)-associated class Ib molecules. These data may be important for understanding the role of gamma delta T cells in autoimmunity and in responses to microorganisms and tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fisch, P -- Malkovsky, M -- Kovats, S -- Sturm, E -- Braakman, E -- Klein, B S -- Voss, S D -- Morrissey, L W -- DeMars, R -- Welch, W J -- New York, N.Y. -- Science. 1990 Nov 30;250(4985):1269-73.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Human Oncology, University of Wisconsin, Madison 53792.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1978758" target="_blank"〉PubMed〈/a〉
    Keywords: Antigen-Presenting Cells/immunology ; Antigens, Bacterial/*immunology ; Antigens, Neoplasm/*immunology ; Bacterial Proteins/*immunology ; Burkitt Lymphoma/*immunology ; Chaperonin 60 ; Clone Cells/immunology ; Escherichia coli/immunology ; Gene Expression ; Heat-Shock Proteins/*immunology ; Histocompatibility Antigens Class I/immunology ; Humans ; Immunoglobulin Variable Region/genetics/immunology ; Immunoglobulin delta-Chains/genetics/immunology ; Immunoglobulin gamma-Chains/genetics/immunology ; Immunosorbent Techniques ; Mycobacterium/immunology ; Receptors, Antigen, T-Cell/genetics/immunology ; T-Lymphocytes/*immunology ; Tumor Cells, Cultured
    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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  • 4
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    Gas jets associated with star formation (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-06-21
    Description: Young stellar objects of both high and low luminosity emit energetic jets or winds of material that are often highly collimated and often bipolar. Near the stars, turbulent swept-up gas is observed in the emission of interstellar molecules such as carbon monoxide, and small, bright regions of water maser emission and the nebulous bright patches known as Herbig-Haro objects appear to be participating in the outflows. There are striking changes in chemical abundances associated with the attendant shocks. Probably every star goes through this phase, which may mark the end of its period of accretion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Welch, W J -- Vogel, S N -- Plambeck, R L -- Wright, M C -- Bieging, J H -- New York, N.Y. -- Science. 1985 Jun 21;228(4706):1389-95.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17814472" target="_blank"〉PubMed〈/a〉
    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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  • 5
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    Hyperthermia protects against light damage in the rat retina (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-30
    Description: An increase in the synthesis of heat shock proteins that is induced in cells in vitro by hyperthermia or other types of metabolic stress correlates with enhanced cell survival upon further stress. To determine if a similar increase in stress tolerance could be elicited in vivo, rats were made hyperthermic, and then their retinas were tested for sensitivity to light damage. This treatment resulted in a marked decrease in photoreceptor degeneration after exposure to bright light as compared to normothermic animals. Concomitant with such protection was an increase in retinal synthesis of three heat shock proteins. Thus, a physiological rise in body temperature enhances the stress tolerance of nerve tissue, perhaps by increasing heat shock protein production.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barbe, M F -- Tytell, M -- Gower, D J -- Welch, W J -- 1 R01 EY07616/EY/NEI NIH HHS/ -- GM 33551-06/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Sep 30;241(4874):1817-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy, Medical College of Pennsylvania, Philadelphia 19144.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175623" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blotting, Western ; Heat-Shock Proteins/*physiology ; *Hot Temperature ; In Vitro Techniques ; Rats ; Retina/pathology/physiology/*radiation effects ; Time Factors
    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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  • 6
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    Star Formation in W49A: Gravitational Collapse of the Molecular Cloud Core Toward a Ring of Massive Stars (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-12-11
    Description: High-resolution molecular line and continuum radio images from the Hat Creek Radio Observatory and the Very Large Array suggest that the core of the W49A star-forming region is undergoing gravitational collapse. The radio continuum shows a 2-parsec ring of at least ten distinct ultracompact H-II regions, each associated with at least one O star. The ring is a region of large-scale, organized massive star formation. Recombination line velocities and HCO(+) excitation requirements indicate that the ring is rotating around 50,000 solar masses of material. Because the HCO(+) (1-0) line shows red-shifted absorption but blue-shifted emission, the molecular cloud core is believed to be collapsing toward the center of the ring. The HCO(+) radial velocities, as well as H-I, H(2)CO, and magnetic-field measurements, fit a simple model of inside-out gravitational collapse of a once magnetically supported cloud.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Welch, W J -- Dreher, J W -- Jackson, J M -- Terebey, S -- Vogel, S N -- New York, N.Y. -- Science. 1987 Dec 11;238(4833):1550-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17784292" target="_blank"〉PubMed〈/a〉
    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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  • 7
    Electronic Resource
    Electronic Resource
    Millimeter and Submillimeter Interferometry of Astronomical Sources (1993)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Astronomy and Astrophysics 31 (1993), S. 297-343 
    Details
    ISSN: 0066-4146
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.aa.31.090193.001501
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  • 8
    Electronic Resource
    Electronic Resource
    Role of the Major Heat Shock Proteins as Molecular Chaperones (1993)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Cell and Developmental Biology 9 (1993), S. 601-634 
    Details
    ISSN: 0743-4634
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.cb.09.110193.003125
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  • 9
    Electronic Resource
    Electronic Resource
    Very long baseline interferometry at a wavelength of 3.4 mm (1983)
    [s.l.] : Nature Publishing Group
    Nature 303 (1983), S. 504-506 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] There are some compelling astrophysical reasons for attempting VLBI at the highest possible frequencies: (1) The resolution provided by millimetre VLBI enables us to study nearby active gajactic nuclei on a scale 1017 cm, which is comparable with the predicted size of an accretion disk around a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/303504a0
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  • 10
    Electronic Resource
    Electronic Resource
    The Mammalian Stress Response and the Cytoskeleton: Alterations in Intermediate Filaments (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 455 (1985), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1985.tb50403.x
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