Cathepsin L
Mostrando 25-36 de 121 artigos, teses e dissertações.
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25. Secreted cathepsin L generates endostatin from collagen XVIII
Endostatin, an inhibitor of angiogenesis and tumor growth, was identified originally in conditioned media of murine hemangioendothelioma (EOMA) cells. N–terminal amino acid sequencing demonstrated that it corresponds to a fragment of basement membrane collagen XVIII. Here we report that cathepsin L is secreted by EOMA cells and is responsible for the gener
Oxford University Press.
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26. Complete nucleotide and deduced amino acid sequences of human and murine preprocathepsin L. An abundant transcript induced by transformation of fibroblasts.
Transfection of an activated rat oncogene into NIH3T3 fibroblasts leads to transformation and induction of a metastatic phenotype. To identify genes whose activation might mediate these processes, we used a differential screening strategy. A 1.5-kb transcript is induced fiftyfold, constitutes 1% of ras transformed cell messenger RNA (mRNA) and is the most ab
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27. Cathepsin B: association with plasma membrane in metastatic tumors.
The subcellular localization of cathepsin B activity (EC 3.4.22.1) in three murine melanomas of increasing metastatic potential (Cloudman less than B16-F1 less than B16 amelanotic) was determined. Cathepsin B activity was localized in the heavy mitochondrial fraction of normal murine liver but in the light mitochondrial fraction of the metastatic melanomas;
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28. Inhibitors of prostaglandin synthesis or cathepsin B prevent muscle wasting due to sepsis in the rat.
Systemic infection with Streptococcus pneumoniae produced atrophy, decreased twitch and tetanic tension, and altered intracellular electrolyte composition in rat skeletal muscle. Cathepsin B activity was selectively elevated early in the course of illness. Luepeptin, a cathepsin B inhibitor, and indomethacin, a prostaglandin synthesis inhibitor, prevented mu
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29. Protein processing by the placental protease, cathepsin P
Cathepsin P is a member of a family of placentally expressed cathepsins (PECs). The closest human homolog of cathepsin P is cathepsin L, a broad specificity enzyme that has functions in many tissues in addition to placenta. The gene duplications that gave rise to the PECs provide a rare opportunity to define proteolytic functions in placenta, a transient org
Oxford University Press.
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30. Cathepsin S inhibitor prevents autoantigen presentation and autoimmunity
The cysteine endoprotease cathepsin S mediates degradation of the MHC class II invariant chain Ii in human and mouse antigen-presenting cells. Studies described here examine the functional significance of cathepsin S inhibition on autoantigen presentation and organ-specific autoimmune diseases in a murine model for Sjögren syndrome. Specific inhibitor of ca
American Society for Clinical Investigation.
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31. Identification of a human neutrophil angiotension II-generating protease as cathepsin G.
A human neutrophil protease, initially termed neutral peptide-generating protease, has been shown to cleave angiotensin II directly from angiotensinogen and has been identified as leukocyte cathepsin G. When purified neutrophils were disrupted by nitrogen cavitation and fractionated by differential centrifugation, 44 and 24% of the angiotensin II-generating
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32. Cloning and sequence analysis of cDNA for human cathepsin D.
An 1110-base-pair cDNA clone for human cathepsin D was obtained by screening a lambda gt10 human hepatoma G2 cDNA library with a human renin exon 3 genomic fragment. Poly(A)+ RNA blot analysis with this cathepsin D clone demonstrated a message length of about 2.2 kilobases. The partial clone was used to screen a size-selected human kidney cDNA library, from
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33. Recombinant Expression and Localization of Schistosoma mansoni Cathepsin L1 Support Its Role in the Degradation of Host Hemoglobin
Cysteine proteinases expressed by schistosomes appear to play key roles in the digestion of host hemoglobin, the principal source of amino acid nutrients utilized by these parasites. We have shown previously that the predominant cysteine proteinase activity in soluble extracts and excretory/secretory (ES) products of adults of Schistosoma mansoni and S. japo
American Society for Microbiology.
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34. Identification of a Putative Structural Gene for Cathepsin D in Caenorhabditis Elegans
Mutants of Caenorhabditis elegans having about 10% of wild-type activity of the aspartyl protease cathepsin D have been isolated by screening. Mutant homozygotes have normal growth rates and no obvious morphological or developmental abnormalities. The mutant gene (cad-1) has been mapped to the right extremity of linkage group II. Heterozygous animals (cad-1/
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35. Cysteine Proteases and Cell Differentiation: Excystment of the Ciliated Protist Sterkiella histriomuscorum
The process of excystment of Sterkiella histriomuscorum (Ciliophora, Oxytrichidae) leads in a few hours, through a massive influx of water and the resorption of the cyst wall, from an undifferentiated resting cyst to a highly differentiated and dividing vegetative cell. While studying the nature of the genes involved in this process, we isolated three differ
American Society for Microbiology.
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36. Cloning and Expression of the Major Secreted Cathepsin B-Like Protein from Juvenile Fasciola hepatica and Analysis of Immunogenicity following Liver Fluke Infection
The functions of the cathepsin B-like proteases in liver flukes are unknown and analysis has been hindered by a lack of protein for study, since the protein is produced in small amounts by juvenile flukes. To circumvent this, we isolated and characterized a cDNA encoding the major secreted cathepsin B from Fasciola hepatica. The predicted preproprotein is 33
American Society for Microbiology.