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Anti-tumor properties of orally administered glucosamine and N-acetyl-D-glucosamine oligomers in a mouse model.

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The current study evaluated the anti-tumor activities of N-acetyl-d-glucosamine oligomer (NACOS) and glucosamine oligomer (COS) after their oral administration in a tumor (colon 26)-bearing mouse model. Compared to the control group, NACOS and COS groups showed significantly suppressed tumor growth,

N-acetyl-D-glucosamine-coated polyamidoamine dendrimer promotes tumor-specific B cell responses via natural killer cell activation.

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N-acetyl-D-glucosamine-coated polyamidoamine dendrimer (GN8P), exerting high binding affinity to rodent recombinant NKR-P1A and NKR-P1C activating proteins, was shown previously to delay the development of rat colorectal carcinoma as well as mouse B16F10 melanoma, and to potentiate antigen-specific

N-[18F]fluoroacetyl-D-glucosamine: a potential agent for cancer diagnosis.

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Positron labeled substrates such as sugars, amino acids, and nucleosides have been investigated for the in-vivo evaluation of biochemical processes in cancerous tissue. Hexosamines are obligatory structural components of many biologically important macromolecules, including membrane glycoproteins

[Intraarterial chemoembolization therapy for unresectable liver cancer using plachitin particles].

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Plachitin formed of both poly-N-acetyl-D-glucosamine (chitin) and cis-diamminedichloroplatinum (CDDP), was used as an arterial chemoembolization therapy against unresectable liver cancer. One gram of Plachitin contained 300 mg of CDDP. The Plachitin particle was 50-100 microns in diameter. Plachitin

Attachment of tumor cells to endothelial monolayers: detection of surface molecules involved in cell-cell binding.

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Trypsinization of P815 mastocytoma cells interferes with their ability to bind to endothelial monolayers in vitro, suggesting the involvement of proteins in cell-cell binding. Binding is also dependent upon divalent cations. Incubation of tumor cells with tunicamycin, which blocks protein

Isolation of an N-acetyl-D-glucosamine specific lectin from the rhizomes of Arundo donax with antiproliferative activity.

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A lectin with antiproliferative activity towards human cancer cell lines and mitogenic towards human peripheral blood mononuclear cells was purified from the rhizomes of Arundo donax (Linn.) by affinity chromatography on N-acetyl-d-glucosamine linked to epoxy-activated sepharose-6B. The pure

A tumour cell aggregation promoting substance from rat ascites hepatoma cells.

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A substance capable of promoting tumour cell aggregation was released from rat ascites hepatoma cell (possibly from the cell surface) kept in Hanks' balanced salt solution (free of calcium and magnesium) in the cold, and then partially purified by chromatography with DEAE-Sephadex and gel filtration

Chitin or chitin-like glycans as targets for late-term cancer chemoprevention.

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A consistent observation in studies of carcinogenesis is that some glycans are expressed differently in cancer cells than in normal cells. A well-known example is the aberrant β1-6 N-acetyl-d-glucosamine branching associated with metastasis and poor prognosis in many cancers. This commentary

Antitumor activity of N-acetyl-D-glucosamine-substituted glycoconjugates and combined therapy with keyhole limpet hemocyanin in B16F10 mouse melanoma model.

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N-Acetyl-D-glucosamine-substituted glycoconjugates (GCJs) with the polyamidoamine (GN8P) or calix[4]arene (GN4C) scaffold represent ligands for NKR-P1 molecule and induce NK cell-mediated cytotoxicity in vitro. The in vivo effect of these GCJs on mouse melanoma model was determined when administered

Binding capacities of two immunomodulatory lectins, carrier-immobilized glycoligands and steroid hormones in lung cancer and the concentration of nitrite/nitrate in pleural effusions.

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Combined analysis of the binding properties of inflammatory and tumor cells in pleural effusion, and tumor imprints for various carrier-immobilized types of ligands and lectins, and of a biochemical feature of the effusions is performed to extend the characterization of these cells and their

Synthesis of a tetra- and a trisaccharide related to an anti-tumor saponin "Julibroside J28" from Albizia julibrissin.

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Simple and convergent synthesis of a tetra- and a trisaccharide portions of an antitumor compound Julibroside J(28), isolated from Albizia julibrissin, that showed significant in vitro antitumor activity against HeLa, Bel-7402 and PC-3M-1E8 cancer cell lines is reported. The tetrasaccharide has been

Targeted drug delivery: binding and uptake of plant lectins using human 5637 bladder cancer cells.

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In an effort to detect novel strategies in bladder cancer therapy, the potential and the applicability of different plant lectins was investigated using 5637 cells as a model for human urinary carcinoma. The cell-lectin interaction studies were performed with single cells as well as monolayers using

Ulva pertusa lectin 1 delivery through adenovirus vector affects multiple signaling pathways in cancer cells.

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Ulva pertusa lectin 1 (UPL1) is a N-acetyl-D-glucosamine (GlcNAc) binding lectin in marine green alga Ulva pertusa. Exogenous UPL1 colocalized with protein arginine methyltransferase 5 (PRMT5), methylosome protein 50 (MEP50), β-actin and β-tubulin, indicating the interaction of UPL1 with the

Chitooligosaccharides and N-acetyl-D-glucosamine stimulate peripheral blood mononuclear cell-mediated antitumor immune responses.

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The aim of the present study was to evaluate the anticancer effects of chitooligosaccharides (COS) and N-acetyl-D-glucosamine (NAG), as well as to investigate the possible mechanisms involved. MTT assay and flow cytometry were used to evaluate the effect of various concentrations of COS and NAG on

Interaction of colon cancer cells with glycoconjugates triggers complex changes in gene expression, glucose transporters and cell invasion.

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Glycan metabolism balance is critical for cell prosperity, and macromolecule glycosylation is essential for cell communication, signaling and survival. Thus, glycotherapy may be a potential cancer treatment. The aim of the present study was to determine whether combined synthetic glycoconjugates

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