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  • 1
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    CD24 and Siglec-10 selectively repress tissue damage-induced immune responses (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-03-07
    Description: Patten recognition receptors, which recognize pathogens or components of injured cells (danger), trigger activation of the innate immune system. Whether and how the host distinguishes between danger- versus pathogen-associated molecular patterns remains unresolved. We report that CD24-deficient mice exhibit increased susceptibility to danger- but not pathogen-associated molecular patterns. CD24 associates with high mobility group box 1, heat shock protein 70, and heat shock protein 90; negatively regulates their stimulatory activity; and inhibits nuclear factor kappaB (NF-kappaB) activation. This occurs at least in part through CD24 association with Siglec-10 in humans or Siglec-G in mice. Our results reveal that the CD24-Siglec G pathway protects the host against a lethal response to pathological cell death and discriminates danger- versus pathogen-associated molecular patterns.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2765686/" 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/PMC2765686/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Guo-Yun -- Tang, Jie -- Zheng, Pan -- Liu, Yang -- AI064350/AI/NIAID NIH HHS/ -- CA112001/CA/NCI NIH HHS/ -- CA58033/CA/NCI NIH HHS/ -- R01 AI064350/AI/NIAID NIH HHS/ -- R01 AI064350-04/AI/NIAID NIH HHS/ -- R01 CA058033/CA/NCI NIH HHS/ -- R01 CA058033-16A2/CA/NCI NIH HHS/ -- R01 CA112001/CA/NCI NIH HHS/ -- R01 CA112001-02/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Mar 27;323(5922):1722-5. doi: 10.1126/science.1168988. Epub 2009 Mar 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Immunotherapy, Department of Surgery, University of Michigan School of Medicine, Ann Arbor, MI 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19264983" target="_blank"〉PubMed〈/a〉
    Keywords: Acetaminophen/toxicity ; Animals ; Antigens, CD24/genetics/*metabolism ; Cytokines/metabolism ; Dendritic Cells/immunology ; HMGB1 Protein/chemistry/immunology/*metabolism ; HSP70 Heat-Shock Proteins/metabolism ; HSP90 Heat-Shock Proteins/metabolism ; Humans ; *Immunity, Innate ; Immunoprecipitation ; Inflammation/*immunology ; Lectins/*metabolism ; Lipopolysaccharides/toxicity ; Liver/immunology/pathology ; Mice ; Mutant Proteins/chemistry/metabolism ; Necrosis/chemically induced/immunology ; Protein Structure, Tertiary ; Protein Tyrosine Phosphatase, Non-Receptor Type 6/metabolism ; Receptors, Antigen, B-Cell/*metabolism ; Receptors, Cell Surface/metabolism ; Receptors, Pattern Recognition/immunology/metabolism ; Signal Transduction ; Transcription Factor RelA/metabolism
    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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    Rheb activates mTOR by antagonizing its endogenous inhibitor, FKBP38 (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-11-10
    Description: The mammalian target of rapamycin, mTOR, is a central regulator of cell growth. Its activity is regulated by Rheb, a Ras-like small guanosine triphosphatase (GTPase), in response to growth factor stimulation and nutrient availability. We show that Rheb regulates mTOR through FKBP38, a member of the FK506-binding protein (FKBP) family that is structurally related to FKBP12. FKBP38 binds to mTOR and inhibits its activity in a manner similar to that of the FKBP12-rapamycin complex. Rheb interacts directly with FKBP38 and prevents its association with mTOR in a guanosine 5'-triphosphate (GTP)-dependent manner. Our findings suggest that FKBP38 is an endogenous inhibitor of mTOR, whose inhibitory activity is antagonized by Rheb in response to growth factor stimulation and nutrient availability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bai, Xiaochun -- Ma, Dongzhu -- Liu, Anling -- Shen, Xiaoyun -- Wang, Qiming J -- Liu, Yongjian -- Jiang, Yu -- GM068832/GM/NIGMS NIH HHS/ -- R01 CA129821/CA/NCI NIH HHS/ -- R01 GM068832/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2007 Nov 9;318(5852):977-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Pittsburgh School of Medicine, E1357 Biomedical Science Tower, 200 Lothrop Street, Pittsburgh, PA 15213, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17991864" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acids/metabolism ; Cell Line ; Culture Media ; Guanosine Triphosphate/metabolism ; Humans ; Insulin/metabolism ; Intercellular Signaling Peptides and Proteins/metabolism ; Monomeric GTP-Binding Proteins/*metabolism ; Multiprotein Complexes ; Mutant Proteins/metabolism ; Neuropeptides/*metabolism ; Phosphorylation ; Protein Binding ; Protein Kinases/chemistry/*metabolism ; Protein Structure, Tertiary ; Proteins ; Recombinant Proteins/metabolism ; Serum ; Signal Transduction ; Sirolimus/metabolism/pharmacology ; TOR Serine-Threonine Kinases ; Tacrolimus Binding Proteins/antagonists & inhibitors/*metabolism ; Transcription Factors/metabolism
    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)
    Location Call Number Expected Availability
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