glucuronic acid/kanser

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Synthesis of some novel D-glucuronic acid acetylated derivatives as potential anti-tumor agents.

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A structurally diverse series of Δ(4,5) -uronamide derivatives have been chemically synthesized starting from D-glucuronic acid itself by means of acetylation, activation, amide bond formation and base-catalyzed elimination protocols. Structure elucidation for all products along with optimization of

[Anticarcinogenic effect of potassium salts of glucaric and glucuronic acid in induced models of cervical and esophageal tumors].

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This study compares the anti-carcinogenic activity of calcium glucarate, potassium glucarate, and potassium glucuronate in cervix and esophagus induced cancer murine models. The cervical cancer induction was performed by tampons moistened with 0.1% solution of 7,12-dimethylbenz(a) anthracene (DMBA)

Niosomes from glucuronic acid-based surfactant as new carriers for cancer therapy: preparation, characterization and biological properties.

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Niosomes are vesicular systems composed of surfactant molecules, claimed to be used as drug delivery carriers thanks to their physico-chemical and biological properties. The aim of this work was to design niosomes obtained with a surfactant synthesized from glucuronic acid. Doxorubicin and 5FU were

A new glycoprotein SPG-8700 isolated from sweet potato with potential anti-cancer activity against colon cancer.

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A new small molecule glycoprotein SPG-8700 with potential anti-colorectal cancer activity was firstly separated by tracking of bioactivity from a new sweet potato variety Zhongshu-1. Matrix-assisted laser desorption ionization mass spectrometry, high-performance liquid chromatography and amino acid

Tunicate Heparan Sulfate Enriched in 2-Sulfated β-Glucuronic Acid: Structure, Anticoagulant Activity, and Inhibitory Effect on the Binding of Human Colon Adenocarcinoma Cells to Immobilized P-Selectin.

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Heparin or highly sulfated heparan sulfate (HS) has been described in different invertebrates. In ascidians (Chordata-Tunicata), these glycosaminoglycans occur in intracellular granules of oocyte accessory cells and circulating basophil-like cells, resembling mammalian mast cells and basophils,

Chemoprotection against cancer by induction of phase 2 enzymes.

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Induction of Phase 2 enzymes is an effective and sufficient strategy for achieving protection against the toxic and neoplastic effects of many carcinogens. It is proposed that the concept of Phase 2 enzymes as being responsible only for the conjugation of functionalized xenobiotics with endogenous

gem-Diamine 1-N-iminosugars and related iminosugars, candidate of therapeutic agents for tumor metastasis.

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Cancer metastasis is one of the major challenges in cancer research. Inhibitors of tumor metastasis are rapidly emerging as important new drug candidates for cancer therapy. Tumor metastasis formation occurs via a complex multistage process which involves a crucial step of tumor invasion through the

Structural characterization of a polysaccharide from Sargassum henslowianum, and its immunomodulatory effect on gastric cancer rat.

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A complicated sulfated fucoidan, SHPPB2, was purified from Sargassum henslowianum by DEAE-cellulose 52 and Sephacryl S-300 column chromatography. Via chemical and spectral method, SHPPB2 was found to contain mannose, glucuronic acid, galactose, xylose, and fucose, in a ratio of 17.4: 13.5: 10.5:

[Correlation of polymorphisms of UDP-glucuronosyltransferase 1A7 gene to genetic susceptibility of lung cancer].

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OBJECTIVE UDP-glucuronosyltransferase 1A7 (UGT1A7) plays an important role in detoxification through catalyzing combination of glucuronic acid and tobacco carcinogens, including benzo [alpha] pyrene, nitrosamine, and heterocyclic amine PhIP, therefore, inactivates the carcinogens. This study was to

A glucuronic acid binding leguminous lectin with mitogenic activity toward mouse splenocytes.

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A dimeric 64-kDa lectin was purified from seeds of French bean (Phaseolus vulgaris) cultivar number 1. The purification protocol entailed Q-Sepharose, Affi-gel blue gel, Mono S and Superdex 75. The lectin-enriched fraction was adsorbed on Q-Sepharose and Affi-gel blue gel and desorbed using 1M NaCl

Population pharmacokinetics of the photodynamic therapy agent 2-[1-hexyloxyethyl]-2-devinyl pyropheophorbide-a in cancer patients.

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Photodynamic therapy is an effective and often curative treatment for certain solid tumors. The porphyrin-based photosensitizer Photofrin, the only Food and Drug Administration-approved drug for this therapy, suffers from certain disadvantages: its complex chemical nature; retention by skin (leading

A minimal toxicity approach to cancer therapy: possible role of beta-glucuronidase.

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Most cancer cells differ from normal cells in that they show higher beta-glucuronidase activity and lower pH of their cytoplasm. Anti-cancer drugs can be designed which take advantage of these gradients to deliver maximal toxicity to tumors and minimal toxicity to normal tissue. Many design criteria

Enterolactone glucuronide and β-glucuronidase in antibody directed enzyme prodrug therapy for targeted prostate cancer cell treatment.

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Evidence from preclinical and animal studies demonstrated an anticancer effect of flaxseed lignans, particularly enterolactone (ENL), against prostate cancer. However, extensive first-pass metabolism following oral lignan consumption results in their systemic availability primarily as glucuronic

Glucuronic acid conjugates.

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The methods of assay in body fluids of 1-beta-alkyl, 1-beta-phenyl and 1-beta-acyl glucuronic acids ("glucuronide conjugates") have been reviewed. Most of the 78 references cited (from the literature of the period 1990-1997) concern the glucuronide conjugates of drug metabolites, and these have been

Metabolite characterization of a novel anti-cancer agent, icotinib, in humans through liquid chromatography/quadrupole time-of-flight tandem mass spectrometry.

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Icotinib is a novel anti-cancer drug that has shown promising clinical efficacy and safety in patients with non-small-cell lung cancer (NSCLC). At this time, the metabolic fate of icotinib in humans is unknown. In the present study, a liquid chromatography/quadrupole time-of-flight tandem mass

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