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Puslapis 1 nuo 66 rezultatus
In vitro and in vivo characterization of 2-deoxy-2-18F-fluoro-D-mannose as a tumor-imaging agent for PET.
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2-Deoxy-2-(18)F-fluoro-d-mannose ((18)F-FDM) is an (18)F-labeled mannose derivative and a stereoisomer of (18)F-FDG. Our preliminary study demonstrated that (18)F-FDM accumulated in tumors to the same extent as (18)F-FDG, with less uptake in the brain and faster clearance from the blood. However,
Experimental study for cancer diagnosis with positron-labeled fluorinated glucose analogs: [18F]-2-fluoro-2-deoxy-D-mannose: a new tracer for cancer detection.
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18F-2-fluoro-2-deoxy-D-glucose (18F-FDG) and 18F-2-fluoro-2-deoxy-D-mannose (18F-FDM) were tested as tumor diagnostic agents in a transplantable rat tumor and rabbit tumors. Tissue distribution studies in rats showed high tumor uptakes of both radiopharmaceuticals. The tumor uptake reached 2.65 +/-
Water-soluble photoluminescent d-mannose and l-alanine functionalized silicon nanocrystals and their application to cancer cell imaging.
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Herein, we report the straightforward synthesis, photoluminescent properties, and cell imaging studies of d-mannose and l-alanine functionalized silicon nanocrystals (SiNCs). Tailoring nanocrystal surface functionalization is essential to interfacing SiNCs with their environment and rendering them
Versatile intermediates in the selective modification of the amino function of 2-amino-2-deoxy-D-mannopyranose and the 3-position of 2-acetamido-2-deoxy-D-mannose: potential membrane modifiers in neoplastic control.
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A general method has been developed to selectively modify the amino group of 2-amino-2-deoxy-D-mannopyranose (D-mannosamine), a precursor of the terminal membrane sugar, sialic acid. 1,3,4,6-Tetra-O-acetyl-2-amino-2-deoxy-alpha-D-mannopyranose oxalate was prepared via two routes that allowed
[Rapid diagnosis of experimental tumor by FITC-Con A lectin--a comparative study of smear and section specimens].
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FITC-Con A staining as a rapid diagnostic method for tumor cells was applied to the tumors smeared on glass slide and section specimens to evaluate the reactivity with FITC-Con A. Good staining results were obtained in smear specimens with clear fluorescence on the membrane of tumor cells. Con A and
Mannose Conjugated Starch Nanoparticles for Preferential Targeting of Liver Cancer
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To design D-Mannose conjugated 5-Fluorouracil (5-FU) loaded Jackfruit seed starch nanoparticles (JFSSNPs) for site specific delivery. <P> Background: Liver cancer is the third leading cause of death in world and fifth most often diagnosed cancer is the major global threat to public health.
Synthesis of D-mannose capped silicon nanoparticles and their interactions with MCF-7 human breast cancerous cells.
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Silicon nanoparticles (SiNPs) hold prominent interest in various aspects of biomedical applications. For this purpose, surface functionalization of the NPs is essential to stabilize them, target them to specific disease area, and allow them to selectively bind to the cells or the bio-molecules
A novel mannose-binding lectin from Liparis nervosa with anti-fungal and anti-tumor activities
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Plant lectins are carbohydrate-binding proteins with nonimmune origin, which can reversibly bind with carbohydrates, agglutinate cells, and precipitate polysaccharides and glycoconjugates. Plant lectins have attracted much attention for their anti-virus, anti-proliferation, and pro-apoptosis
Selective effect of 2-(polyhydroxyalkyl)-thiazolidine-4-carboxylic acids on nonprotein sulfhydryl groups in tumor bearing mice.
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1. Thiazolidine derivatives (TD), the products of condensation of L-cysteine (cys) with sugars (D-glucose, D-xylose, D-arabinose, D-galactose, and D-mannose), successfully elevated nonprotein sulfhydryl (NPSH) levels in livers of Ehrlich ascites tumor (EAT)-bearing mice. 2. At the same time, TD
Immunization of fucose-containing polysaccharides from Reishi mushroom induces antibodies to tumor-associated Globo H-series epitopes.
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Carbohydrate-based vaccines have shown therapeutic efficacy for infectious disease and cancer. The mushroom Ganoderma lucidum (Reishi) containing complex polysaccharides has been used as antitumor supplement, but the mechanism of immune response has rarely been studied. Here, we show that the mice
D-Glucose and D-mannose-based metabolic probes. Part 3: Synthesis of specifically deuterated D-glucose, D-mannose, and 2-deoxy-D-glucose.
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Altered carbohydrate metabolism in cancer cells was first noted by Otto Warburg more than 80 years ago. Upregulation of genes controlling the glycolytic pathway under normoxia, known as the Warburg effect, clearly differentiates malignant from non-malignant cells. The resurgence of interest in
α-D-mannose derivatives as models designed for selective inhibition of Golgi α-mannosidase II.
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Human Golgi α-mannosidase II (hGM) is a pharmaceutical target for the design of inhibitors with anti-tumor activity. Nanomolar inhibitors of hGM exhibit unwanted co-inhibition of the human lysosomal α-mannosidase (hLM). Hence, improving specificity of the inhibitors directed toward hGM is desired in
Effects of naturally occurring sugars on Ehrlich ascites tumor growth in mice.
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The growth of Ehrlich ascites tumor cells in Swiss mice was modified by the addition of certain naturally occurring sugars to the drinking water or by ip inoculation of mice after infection. D-Mannose, D-ribose, and D-glucosamine produced the most striking antitumor effects, increasing significantly
Recent studies on the biological production of D-mannose.
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D-Mannose is an epimer of glucose at the C-2 position and exists in nature as a component of mannan. It has 60 and 86% sweetness than that of sucrose and D-glucose, respectively. Because of its low-calorie and nontoxic features, D-mannose is used widely in food, medicine, cosmetic, and food-additive
Targeting glycosylation pathways and the cell cycle: sugar-dependent activity of butyrate-carbohydrate cancer prodrugs.
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Short-chain fatty acid (SCFA)-carbohydrate hybrid molecules that target both histone deacetylation and glycosylation pathways to achieve sugar-dependent activity against cancer cells are described in this article. Specifically, n-butyrate esters of N-acetyl-D-mannosamine (But4ManNAc, 1) induced
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