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[L-Glutamic acid modulates the cytotoxic effect of tumor necrosis factor in the HL-60 cell line].

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L-Glutamic acid was shown to increase the stability of cells of the HL-60 line of human promyelocyte leukemia to the cytotoxic action of tumor necrosis factor alpha (TNF-alpha) due to the inhibition of apoptotic and NF-kappaB-activating cascades induced by this cytokine. At the same time, L-glutamic

Influence of L-glutamic acid on binding of interleukin-1beta, tumour necrosis factor-alpha and interleukin-6 to HL-60 cells.

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To elucidate the mechanism of differentiating activity on L-Glu to HL-60 cells, its influence on binding of human recombinant interleukine-1beta (rHuIL-1beta), tumour necrosis factor-alpha (rHuTNF-alpha) and interleukine-6 (IL-6) by HL-60 cells was studied. It was established, that L-Glu converted

[Effect of L-glutamic acid on the reception of cytokines by HL-60 cells].

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L-Glutamic acid at a concentration of 0.1 microM was found to induce differentiation of the cell line of HL-60 promyelocytic leukemia into granulocytes or neutrophils. The HL-60 cells have no specific glutamate-binding sites, but L-glutamic acid influences the reception of several cytokines by these

L-glutamine and L-glutamic acid facilitate successful agrobacterium infection of recalcitrant tea cultivars.

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The first step in Agrobacterium tumefaciens infection of plants is the establishment of cell-cell contact between the two partners. However, failure to establish such contact makes many plants and explants recalcitrant to A. tumefaciens infection. Tea is one such example where even the popular

Tumor necrosis factor alpha stimulates taurine uptake and transporter gene expression in human intestinal Caco-2 cells.

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The effect of cytokines on the taurine uptake by human intestinal epithelial Caco-2 cells was investigated. Among the various cytokines tested, tumor necrosis factor alpha (TNF-alpha) markedly increased the taurine uptake by Caco-2 cells, resulting in an increase in the intracellular taurine level.

Magnetic resonance imaging of therapy-induced necrosis using gadolinium-chelated polyglutamic acids.

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OBJECTIVE Necrosis is the most common morphologic alteration found in tumors and surrounding normal tissues after radiation therapy or chemotherapy. Accurate measurement of necrosis may provide an early indication of treatment efficacy or associated toxicity. The purpose of this report is to

Complete regression of well-established tumors using a novel water-soluble poly(L-glutamic acid)-paclitaxel conjugate.

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Despite an intensive search, few water-soluble paclitaxel derivatives have been shown to have a therapeutic index superior to paclitaxel itself. We now report a water-soluble poly(L-glutamic acid)-paclitaxel conjugate (PG-TXL) that produces striking antitumor effects with diminished toxicity. A

Co-administration of combretastatin A4 nanoparticles and sorafenib for systemic therapy of hepatocellular carcinoma.

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Effective systemic therapy is highly desired for the treatment of hepatocellular carcinoma (HCC). In this study, a combination of nanoparticles of poly(L-glutamic acid)-graft-methoxy poly(ethylene glycol)/combretastatin A4 sodium salt (CA4-NPs) plus sorafenib is developed for the cooperative

Antibacterial protection of suture material by chlorhexidine-functionalized polyelectrolyte multilayer films.

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The formation of bacterial biofilms on the surface of implanted materials is a critical factor that may lead to chronic microbial infection and tissue necrosis. In the present study we analysed the stability of polyelectrolyte multilayer (ML) films on suture materials and the antibacterial effect

[Physiological function of blood-brain barrier transporters as the CNS supporting and protecting system].

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The blood-brain barrier (BBB) segregates the circulating blood from interstitial fluid in the brain and restricts drug permeability into the brain. Our latest studies have revealed that the BBB transporters play important physiological roles in maintaining the brain environment. For an

Active Nanofibrous Membrane Effects on Gingival Cell Inflammatory Response.

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Alpha-melanocyte stimulating hormone (α-MSH) is involved in normal skin wound healing and also has anti-inflammatory properties. The association of α-MSH to polyelectrolyte layers with various supports has been shown to improve these anti-inflammatory properties. This study aimed to evaluate the

Anionic polymer-coated lipoplex for safe gene delivery into tumor by systemic injection.

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In this study, we developed an anionic lipoplex by coating cationic lipoplex with anionic polymers such as hyaluronan (HA), chondroitin sulfate C (CS) and poly-l-glutamic acid (PLE) to deliver the plasmid DNA efficiently into the tumor by avoiding interaction with erythrocytes. The sizes of HA-, CS-

Mechanism of the suppression against D-galactosamine-induced hepatic injury by dietary amino acids in rats.

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To elucidate the mechanism by which dietary amino acids suppress the D-galactosamine (D-GalN)-induced hepatitis, we examined the involvement of Kupffer cells, tumor necrosis factor-alpha (TNF-alpha) and apoptosis in the mechanism. In experiment 1, the rats were fed with 10% L-glutamine or 5% glycine

Polypeptide Nanogels With Different Functional Cores Promote Chemotherapy of Lung Carcinoma.

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Two kinds of tumor microenvironment-responsive polypeptide nanogels were developed for intracellular delivery of cytotoxics to enhance the antitumor efficacies and reduce the side effects in the chemotherapy of lung carcinoma. The sizes of both doxorubicin (DOX)-loaded nanogels methoxy poly(ethylene

The effects of heparin and related molecules upon the adhesion of human polymorphonuclear leucocytes to vascular endothelium in vitro.

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1. The effects of an unfractionated heparin preparation (Multiparin), a low molecular weight heparin preparation (Fragmin) and a selectively O-desulphated derivative of heparin lacking anticoagulant activity, have been investigated for their effects on the adhesion of human polymorphonuclear

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