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Pàgina 1 des de 203 resultats
[An evaluation of endogenous lectins in the intrapulmonary metastases of osteogenic sarcoma].
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Assessment is made of the presence or absence of specific sugar receptors (lectins) in patients operated for intrapulmonary metastases of osteogenic sarcoma. Investigations were carried out on histochemically stained paraffin sections for the separate types of sugars. Highest was the presence of
Blocking of lectin-like adhesion molecules on pulmonary cells inhibits lung sarcoma L-1 colonization in BALB/c-mice.
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Adhesion and inhibition experiments with pulmonary cells of BALB/c-mouse origin and syngeneic sarcoma L-1 cells indicated that L-fucose specific lectin-like adhesion molecules, presumably situated on pulmonary cell surfaces are (at least partly) responsible for the specificity of this cell-cell
Eosinophilic globule cells in mouse MFH-like sarcomas: lectin histochemistry.
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Lectin binding patterns in ten mouse malignant fibrous histiocytoma (MFH)-like sarcomas containing eosinophilic globule (EG) cells and in granular metrial gland (GMG) cells of mouse placenta were stained with nine lectins (Con A, LCA, WGA, DBA, SBA, e-PHA, PNA, RCA-I and UEA-I) by an
Binding and cytotoxicity of Ricinus communis lectins to HeLa cells, Sarcoma 180 ascites tumor cells and erythrocytes.
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The binding of Ricinus communis lectins to HeLa cells, Sarcoma 180 ascites tumor cells and human erythrocytes was studied in detail. Scatchard plots of binding of 125I-lectins to these cells gave biphasic lines except for HeLa cells at 0 degree C. The association constants of lectins for the three
Case reports of sarcoma patients with optimized lectin-oriented mistletoe extract therapy.
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BACKGROUND
Mistletoe (Viscum album L) extracts (ME) are widespread as immunomodulatory therapeutic agents in alternative tumor treatment. Assessing the often-controversial clinical results is rather difficult since the effects of ME on the immune system cannot be equally reproduced. Mistletoe
Antinociceptive activity of Schinus terebinthifolia leaf lectin (SteLL) in sarcoma 180-bearing mice.
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Evaluation of antitumor activity and toxicity of Schinus terebinthifolia leaf extract and lectin (SteLL) in sarcoma 180-bearing mice.
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Influence of bacterial lectins on some reactions of nonspecific immunity in sarcoma 37 transplanted mice.
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OBJECTIVE
To study preventive effect of cytotoxic lectin from Bacillus subtilis B-7025 on the tumor growth and nonspecific immunity in sarcoma 37 transplanted mice.
METHODS
Sarcoma 37 cells were transplanted in Balb/c mice. Cytotoxic lectin (CL) was isolated from cultural fluid of B.subtilis strain
Actions of lectins from the mushroom Tricholoma mongolicum on macrophages, splenocytes and life-span in sarcoma-bearing mice.
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Two lectins isolated from the mushroom Tricholoma mongolicum stimulated the production of nitrite ions by macrophages in normal and tumor-bearing mice. Both lectins exhibited negligible mitogenic activity toward T-cells or splenocytes from normal mice in vitro when compared with Con A. Similarly,
Isolation and analysis of lectin-reactive sarcoma-associated membrane glycoproteins.
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Sarcoma and normal tissue plasma membrane lectin-reactive glycoproteins were analyzed by sodium dodecyl sulfate polyacrylamide gel electrophoresis. Two peanut agglutinin-reactive N-acetylgalactosamine-containing glycoproteins of 1.05 x 10(6) and 1.25 x 10(5) Da and one lentil agglutinin-reactive
In vitro influence of lectins and neoglycoconjugates on the growth of three human sarcoma cell lines.
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OBJECTIVE
The aim of our study is to investigate the in vitro effects of plant lectins, galectins and neoglycoconjugates on the proliferation of three human sarcoma cell lines.
METHODS
Proliferation was assessed by means of the tetrazolium derivative reduction (MTT) assay. In addition,
Lectin affinity chromatography of Sindbis and Rous sarcoma virus glycopeptides and oligosaccharides.
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Glycopeptides and endogly cosidase-digested oligosaccharides from [3H]mannose-labeled Rous sarcoma virus and Sinbis virus have been fractionated by lentil lectin-Sepharose and concanavalin A-agarose affinity chromatography and subsequently analyzed by BioGel P-4 gel filtration. Only a specific
Pattern of endogenous lectins of a human sarcoma (Ewing's sarcoma) reveals differences to human normal tissues and tumors of epithelial and germ cell origin.
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A human sarcoma, Ewing's sarcoma, contains activities of endogenous lectins. Fractionation of salt and detergent extracts by affinity chromatography on columns with immobilized sugars or glycoproteins results in the pattern of endogenous lectins for alpha- and beta-galactosides, alpha-mannosyl- and
Partial purification of tumour-specific transplantation antigens from methylcholanthrene-induced murine sarcomas by immobilized lectins.
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Plasma membranes isolated from two immunogenic, non-cross-protecting, MC sarcomas were shown to retain the specific rejection antigens of whole cells as well as serologically detected H-2 antigens. Solubilization of the membranes with sodium deoxycholate gave quantitative release of H-2 and retained
[Changes in the structure of fibronectin glycans caused by the transformation of BHK21/C13 cells induced by hamster sarcoma viruses. Hypothesis concerning metastatic diffusion by masking lectin sites of fibronectin].
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Transformation of BHK21/C13 cells by the hamster sarcoma virus induces dramatic modifications of glycans of the N-acetyllactosaminic type from fibronectin secreted in the culture medium. In fact, the ratio tri + tetraantennary glycans/biantennary glycans increases from 0.73 to 2.46. Moreover, the
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