monosaccharide/sarcoma

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Differential expression of an alpha-galactosyl-containing trisaccharide on high- and low-malignant murine sarcoma cells: identification and regulation.

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Past studies have shown that carbohydrate residues reactive with the Griffonia simplicifolia isolectin B4 (GS I-B4) are present on the surface of highly-malignant murine sarcoma cells but are lacking or expressed in much lower amounts on the surface of low-malignant cells isolated from the same

Low level toxicity and antitumor activity of butyric mono- and polyester monosaccharide derivates in mice.

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This study compares the antitumor activity of five mono- and polyesters of n-butyric acid derived from monosaccharides in the murine model of Crocker 180 TG Sarcoma. Tumor incidence at ten days, mean survival time and final survival rate were significantly affected in all cases. Combined treatment

Solasodine glycosides. Selective cytotoxicity for cancer cells and inhibition of cytotoxicity by rhamnose in mice with sarcoma 180.

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BEC, a standard mixture of solasodine glycosides is effective in vivo against murine sarcoma 180 (S180), whereas the aglycone solasodine at equimolar concentrations is ineffective. The efficacy of BEC against S180 in vivo can be inhibited by rhamnose. Mice which are in their terminal stage with S180

Characterization of IL-2-dependent cytotoxic T-cell clones. III. Inhibition of killing activity by monosaccharides.

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The effects of monosaccharides on the cytotoxic activity of cytotoxic T lymphocytes (CTL) and three cloned long-term cytotoxic T-lymphocyte lines (CTLL) are compared. Uncultured CTL and clones CTLL-A2 and CTLL-A11 were derived from the peritoneal cavity of C57BL/6 mice immunized against the H-2Dd

Effects of Rehmannia glutinosa polysaccharide b on T-lymphocytes in mice bearing sarcoma 180.

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OBJECTIVE To study immuno-antitumor action mechanism of RGP-b. RGP-b (Rehmannia glutinosa polysaccaride b) is a new component isolated from the herb, had an average molecular mass of 160 kDa and 5 kinds of monosaccharides as acid-splitting products. Its HPLC showed a main sharp peak at 162

Metastatic melanoma cell heparanase. Characterization of heparan sulfate degradation fragments produced by B16 melanoma endoglucuronidase.

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Heparan sulfate (HS), a prominent component of vascular endothelial basal lamina, is cleaved into large Mr fragments and solubilized from subendothelial basal lamina-like matrix by metastatic murine B16 melanoma cells. We have examined the degradation products of HS and other purified

High-Level Production of Exopolysaccharides by a Cosmic Radiation-Induced Mutant M270 of the Maitake Medicinal Mushroom, Grifola frondosa (Agaricomycetes).

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A new Grifola frondosa mutant, M270, was successfully isolated for high production of exopolysaccharides (EPSs) using cosmic radiation-induced mutagenesis. We found that the mutant M270 had a clearer and thicker EPS layer (~10 µm) adhering to mycelia than those of its parent strain 265 after Congo

Effect of growth conditions on the content of the major groups of carbohydrates in chick embryo fibroblasts.

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The levels of glycogen, hyaluronic acid, chondroitin sulfates, N-acetylneuraminic acid, all of the monosaccharide components of the glycoprotein and glycolipid fractions, and the monosaccharide pools were measured in cultured chick embryo fibroblasts. Under all growth conditions, the glycogen plus

Comparison of the binding properties of the mushroom Marasmius oreades lectin and Griffonia simplicifolia I-B isolectin to alphagalactosyl carbohydrate antigens in the surface phase.

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The binding of two alpha-galactophilic lectins, Marasmius oreades agglutinin (MOA), and Griffonia simplicifolia I isolectin B(4) (GS I-B(4)) to neoglycoproteins and natural glycoproteins were compared in a surface phase assay. Neoglycoproteins carrying various alpha-galactosylated glycans and

The major cell surface glycoprotein of chick embryo fibroblasts is an agglutinin.

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A major cell surface protein, CSP, of chick embryo fibroblasts has been shown to constitute up to 3% of total cell protein, and to be decreased after viral transformation. Its role in normal cell behavior is not known. We have isolated CSP from chick embryo fibroblasts by extraction with 1 M urea

Enhancement by stable butyrate derivatives of antitumor and antiviral actions of interferon.

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The use of n-butyric acid has been associated with induction of cell differentiation and bypassing of genetic defects in the suppression of malignancy. This biological response modifier satisfies the requirements for specificity and low toxicity, and its use can be considered as an alternative

Selenium-dependent antitumor immunomodulating activity of polysaccharides from roots of A. membranaceus.

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Roots of Astragalus membranaceus (Fish.) Bge. var. mongholicus (Bge.) Hsiao (A. membranaceus) have been long used as an auxiliary reagent supporting cancer treatment. Here, we compared the chemical composition and antitumor immunomodulating activity of polysaccharides from roots of A. membranaceus

[Structural analysis and anti-tumor activity in vivo of polysaccharide APS-2a from Angelica sinensis].

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The polysaccharide APS-2a was isolated from Angelica sinensis (Oliv.) Diels through water extraction, deprotein, ethanol precipitation and DEAE-sephades A-25 column chromatography respectively,and was further purified by Sephacryl S-400 and Sephadex G-100 column chromatography. The phenol-sulfuric

Purification and characterization of Silurus asotus (catfish) roe lectin.

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A rhamnose-binding lectin isolated from Silurus asotus (catfish) roe by DEAE-cellulose ion exchange and galactose-Sepharose affinity chromatographies predominantly agglutinated human type B and rabbit erythrocytes. S. asotus lectin (SAL) also agglutinated sarcoma 180 ascites carcinoma cells, but not

Partial structure of a membrane glycopeptide from virus-transformed hamster cells.

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The predominant surface glycopeptide from a clone of baby hamster kidney cells transformed by Rous sarcoma virus (C13/B4), metabolically labeled with L-[14C]fucose, has been characterized for the first time. This glycopeptide represents 19% of the total radioactivity removed by trypsin from the cell

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