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Bladzijde 1 van 229 resultaten

The level of anti-(GalNAc beta) and anti-para-Forssman disaccharide IgG antibodies in patients with gastrointestinal cancer: relation to survival.

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Serum anti-(GalNAcβ) and anti-para-Forssman disaccharide (PF(di), GalNAcβ1--3GalNAcβ) IgG levels were earlier found to be related to histological grading and progression of gastrointestinal cancer. OBJECTIVE To study the relation of serum antibodies level to survival in patients with

Heparin disaccharides inhibit tumor necrosis factor-alpha production by macrophages and arrest immune inflammation in rodents.

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Inflammation is the clinical expression of chemical mediators such as the pro-inflammatory cytokine tumor necrosis factor (TNF-)-alpha produced by macrophages and other cells activated in the immune response. Hence, agents that can inhibit TNF-alpha may be useful in treating arthritis and other

Disaccharide esters screened for inhibition of tumor necrosis factor-alpha release are new anti-cancer agents.

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Tumor necrosis factor-alpha (TNF-alpha) is a proinflammatory cytokine playing a part in various pathological states. Non-toxic inhibitors of TNF-alpha release are thought to be promising agents for cancer prevention. We found that the acetone fraction of the tobacco leaf surface lipid containing

Selective tumor cell targeting by the disaccharide moiety of bleomycin.

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In a recent study, the well-documented tumor targeting properties of the antitumor agent bleomycin (BLM) were studied in cell culture using microbubbles that had been derivatized with multiple copies of BLM. It was shown that BLM selectively targeted MCF-7 human breast carcinoma cells but not the

Improved efficacy and enlarged spectrum of activity of a novel anthracycline disaccharide analogue of doxorubicin against human tumor xenografts.

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On the basis of a structure-activity study of a new series of anthracycline disaccharides, we recently identified a doxorubicin analogue (MEN 10755) with a promising antitumor activity. In the present study, to better support the pharmacological interest of MEN 10755, we extended the preclinical

Pharmacokinetics of MEN-10755, a novel anthracycline disaccharide analogue, in two phase I studies in adults with advanced solid tumours.

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The doxorubicin analogue MEN-10755 has been identified as a compound with promising antitumour activity based on structure-activity studies of a new series of anthracycline disaccharides. The high antitumour activity of MEN-10755 in human tumour xenografts, including doxorubicin-resistant

Structural features facilitating tumor cell targeting and internalization by bleomycin and its disaccharide.

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We have shown previously that the bleomycin (BLM) carbohydrate moiety can recapitulate the tumor cell targeting effects of the entire BLM molecule, that BLM itself is modular in nature consisting of a DNA-cleaving aglycone which is delivered selectively to the interior of tumor cells by its

Modified bleomycin disaccharides exhibiting improved tumor cell targeting.

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The bleomycins (BLMs) are a family of antitumor antibiotics used clinically for anticancer chemotherapy. Their antitumor selectivity derives at least in part from their ability to target tumor cells, a property that resides in the carbohydrate moiety of the antitumor agent. In earlier studies, we

Tumor marker disaccharide D-Gal-beta 1, 3-GalNAc complexed to heat-labile enterotoxin from Escherichia coli.

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Heat-labile enterotoxin (LT) is part of the cholera toxin (CT) family and consists of a catalytic A subunit and a B pentamer that serves to recognize the oligosaccharide part of the GM1 ganglioside receptor. We report here the crystal structure of heat-labile enterotoxin in complex with the

Novel group of tyrosyl-DNA-phosphodiesterase 1 inhibitors based on disaccharide nucleosides as drug prototypes for anti-cancer therapy.

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A new class of tyrosyl-DNA phosphodiesterase 1 (TDP1) inhibitors based on disaccharide nucleosides was identified. TDP1 plays an essential role in the resistance of cancer cells to currently used antitumour drugs based on Top1 inhibitors such as topotecan and irinotecan. The most effective

Prebiotic Chondroitin Sulfate Disaccharide Isolated from Chicken Keel Bone Exhibiting Anticancer Potential Against Human Colon Cancer Cells.

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Chondroitin sulfate (CS)-Keel disaccharide (CSD) was produced by chondroitin AC lyase (PsPL8A) degradation of food grade CS-Keel polysaccharide isolated from chicken keel cartilage. PsPL8A showed specific activity, 340 ± 5.2 U mg^-1 with CS-Keel polysaccharide. TLC showed CSD as the major

A disaccharide-based inhibitor of glycosylation attenuates metastatic tumor cell dissemination.

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OBJECTIVE The binding of hematogenously borne malignant cells that express the carbohydrate sialyl Lewis X (sLe(X)) to selectin adhesion receptors on leukocytes, platelets, and endothelial cells facilitates metastasis. The glycosylation inhibitor, per-O-acetylated

A disaccharide precursor of sialyl Lewis X inhibits metastatic potential of tumor cells.

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Clustered presentation of sialyl Lewis X (sLe(X)) on tumor cell mucins is thought to facilitate metastasis through binding to selectin adhesion receptors expressed on platelets, leukocytes and endothelial cells. Thus, interfering with sLe(X) assembly might provide a chemotherapeutic method for

Bacterial Natural Disaccharide (Trehalose Tetraester): Molecular Modeling and in Vitro Study of Anticancer Activity on Breast Cancer Cells.

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Isolation and characterization of new biologically active substances affecting cancer cells is an important issue of fundamental research in biomedicine. Trehalose lipid was isolated from Rhodococcus wratislaviensis strain and purified by liquid chromatography. The effect of

Structure-activity relationship of oleanane disaccharides isolated from Akebia quinata versus cytotoxicity against cancer cells and NO inhibition.

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In order to further determine the nature of structure-activity relationship on the cytotoxicities of saponins with 1-->2 and 1-->3 linkages of disaccharides, we isolated guaianin N, collinsonidin, kalopanaxsaponin A and hederoside D(2) as disaccharides, and patrinia glycoside B-II as a

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