5-fluoro-2--deoxycytidine and Breast-Neoplasms

Between 82.8% and 92.5% of participants in any BMI group were responders by AS, and between 91.3% and 100% were responders by BBPS in the right colon. Efficacy was consistent across BMI groups, with no clear trends. Greater than 83% of participants in any BMI group found the preparation 'easy' or 'acceptable' to ingest, and the majority (>58%) rated SPMC oral solution as 'better' than a prior bowel preparation. In all BMI groups, safety data were similar to the overall cohort. Commonly reported, drug-related, treatment-emergent AEs were, by ascending BMI group, nausea (1.1%, 5.3%, 1.0%, 5.7%, and 0%) and headache (1.1%, 4.1%, 1.0%, 5.7%, and 0%).. Ready-to-drink SPMC oral solution had consistent, good quality colon cleansing, and favorable tolerability among participants of all BMI groups.. NCT03017235.. The pretreatment serum AST/ALT ratio predicts poor disease outcome and response rate in patients with advanced PDAC treated with gemcitabine/nab-paclitaxel and might represent a novel and inexpensive marker for individual risk assessment in the treatment of pancreatic cancer.. Of the 98 patients included in the study, 58 had CR (59%), 28 had PR (29%), and 12 patients had NR (12%). The percent splenic tissue embolized was significantly greater in the CR group compared to the PR group (P = 0.001). The percent volume of splenic tissue embolized was linearly correlated with the magnitude of platelet increase without a minimum threshold. At least one line of chemotherapy was successfully restarted in 97% of patients, and 41% of patients did not experience recurrence of thrombocytopenia for the duration of their survival. The major complication rate was 8%, with readmission following initial hospitalization for persistent "post-embolization syndrome" symptoms the most common.. In cancer patients with hypersplenism-related thrombocytopenia, PSAE is a safe intervention that effects a durable elevation in platelet counts across a range of malignancies and following the re-initiation of chemotherapy.. Postoperative CRP elevation was a better predictor of prognosis in patients with gastric cancer than the occurrence of intra-abdominal infectious complications.. In clinical practice, mixed-species malaria infections are often not detected by light microscopy (LM) or rapid diagnostic test, as a low number of parasites of one species may occur. Here, we report the case of an 8-year-old girl migrating with her family from Afghanistan with a two-species mixed infection with

Topics: 3-Hydroxybutyric Acid; Acetazolamide; Acrylates; Administration, Intravenous; Adolescent; Adult; Aerosols; Afghanistan; Aflatoxin M1; Agaricales; Aged; Aged, 80 and over; Agricultural Irrigation; Air Pollutants; alpha-L-Fucosidase; Amino Acid Sequence; Androgen Antagonists; Animals; Antibodies, Bacterial; Antigens, Bacterial; Antineoplastic Agents; Antioxidants; Apoptosis; Artifacts; Autophagy; B7-H1 Antigen; Bacterial Proteins; Bacterial Typing Techniques; Bariatric Surgery; Base Composition; Bayes Theorem; Bile; Bioelectric Energy Sources; Biosensing Techniques; Body Mass Index; Brain; Brazil; Breast Neoplasms; Bufo arenarum; Burkholderia; C-Reactive Protein; Cadmium; Carbon Compounds, Inorganic; Carbon-13 Magnetic Resonance Spectroscopy; Carbonic Anhydrase Inhibitors; Carbonic Anhydrases; Carcinoma, Transitional Cell; Case-Control Studies; CD4-Positive T-Lymphocytes; Cell Count; Cell Hypoxia; Cell Line, Tumor; Cell Proliferation; Characiformes; Child; China; Cities; Cobalt; Colonic Neoplasms; Copper Sulfate; Cross-Sectional Studies; Cyclin-Dependent Kinase Inhibitor p16; Cytokines; Deoxycytidine; Diagnosis, Differential; Digestive System; Dihydroxyphenylalanine; Disease Models, Animal; DNA (Cytosine-5-)-Methyltransferase 1; DNA Barcoding, Taxonomic; DNA, Bacterial; Dose-Response Relationship, Drug; Down-Regulation; Edetic Acid; Electrochemical Techniques; Electrodes; Embolization, Therapeutic; Embryo, Nonmammalian; Environmental Monitoring; Enzyme-Linked Immunosorbent Assay; Epithelial-Mesenchymal Transition; Fatty Acids; Feces; Female; Follow-Up Studies; Food Contamination; Forkhead Box Protein M1; Fresh Water; Fungicides, Industrial; Gallium Isotopes; Gallium Radioisotopes; Gastrectomy; Gastric Bypass; Gastric Outlet Obstruction; Gastroplasty; Gene Expression Profiling; Gene Expression Regulation, Neoplastic; Genes, Bacterial; Genetic Markers; Genome, Bacterial; Genome, Mitochondrial; Glioma; Glycogen Synthase Kinase 3 beta; Goats; Gonads; Guatemala; Halomonadaceae; HEK293 Cells; Helicobacter Infections; Helicobacter pylori; Hepacivirus; Histone-Lysine N-Methyltransferase; Hormones; Humans; Hydroxybutyrate Dehydrogenase; Hypersplenism; Hypoxia-Inducible Factor 1, alpha Subunit; Immunohistochemistry; Iran; Japan; Lactuca; Laparoscopy; Larva; Ligands; Liver Neoplasms; Lymphocyte Activation; Macrophages; Malaria; Male; Mercury; Metabolic Syndrome; Metals, Heavy; Mice; Middle Aged; Milk, Human; Mitochondria; Models, Molecular; Molecular Structure; Mothers; Multilocus Sequence Typing; Muscles; Mutation; Nanocomposites; Nanotubes, Carbon; Neoplasm Invasiveness; Neoplasm Recurrence, Local; Neoplasms; Neoplastic Cells, Circulating; Neoplastic Stem Cells; Neuroimaging; Nitriles; Nitrogen Isotopes; Non-alcoholic Fatty Liver Disease; Nuclear Magnetic Resonance, Biomolecular; Obesity; Obesity, Morbid; Oligopeptides; Oxidation-Reduction; Pancreatic Neoplasms; Particle Size; Particulate Matter; Pepsinogen A; Pesticides; Pharmacogenetics; Phosphatidylinositol 3-Kinases; Phospholipids; Phylogeny; Plasmodium ovale; Plasmodium vivax; Platelet Count; Polyhydroxyalkanoates; Positron Emission Tomography Computed Tomography; Positron-Emission Tomography; Postoperative Complications; Pregnancy; Prevalence; Prognosis; Prospective Studies; Prostate-Specific Antigen; Prostatic Neoplasms; Protein Domains; Proto-Oncogene Proteins c-akt; Proton Magnetic Resonance Spectroscopy; Pseudogenes; PTEN Phosphohydrolase; Pyrazoles; Pyrimidines; Radiographic Image Interpretation, Computer-Assisted; Radiopharmaceuticals; Rats, Long-Evans; Rats, Sprague-Dawley; RAW 264.7 Cells; Reactive Oxygen Species; Real-Time Polymerase Chain Reaction; Receptor, Notch3; Receptors, G-Protein-Coupled; Receptors, Urokinase Plasminogen Activator; Recombinant Proteins; Repressor Proteins; Resveratrol; Retrospective Studies; Risk Assessment; Risk Factors; RNA, Messenger; RNA, Ribosomal, 16S; Salinity; Salvage Therapy; Seasons; Sequence Analysis, DNA; Seroepidemiologic Studies; Signal Transduction; Skin; Snails; Soluble Guanylyl Cyclase; Solutions; Spain; Species Specificity; Spheroids, Cellular; Splenic Artery; Stomach Neoplasms; Streptococcus pneumoniae; Structure-Activity Relationship; Sulfonamides; Sunlight; Surface Properties; Surgical Instruments; Surgical Wound Infection; Survival Rate; Tetrahydrouridine; Thinness; Thrombocytopenia; Tissue Distribution; Titanium; Tomography, X-Ray Computed; TOR Serine-Threonine Kinases; Tumor Microenvironment; Tumor Necrosis Factor-alpha; Turkey; Ubiquinone; Urologic Neoplasms; Viral Envelope Proteins; Wastewater; Water Pollutants, Chemical; Weather; Wnt Signaling Pathway; Xenograft Model Antitumor Assays; Young Adult

Recently, there has been much interest in the use of radionuclide conjugated monoclonal antibodies for the treatment of human malignancies. One way to potentially maximize the therapeutic effectiveness of radioimmunotherapy would be to sensitize tumor cells to the radiation dose delivered by the antibody. Since radioimmunotherapy can potentially treat disseminated disease, including micrometastasis, we chose to study a halogenated pyrimidine radiosensitizer, a class of compounds that affect nonhypoxic cells. 5-Iododeoxyuridine, administered with pyrimidine metabolism modulators, increased the therapeutic effectiveness of radioimmunotherapy, resulting in individual cures of human tumors growing in BALB/c nu/nu (nude) mice. 5-Iododeoxyuridine was administered with N-(phosphonacetyl)-L-aspartic acid and 5-fluoro-deoxycytidine plus tetrahydrouridine. This drug treatment was combined with radioimmunotherapy using 131I conjugated to a monoclonal antibody, Mc5. Mc5 binds to a mucin component of the human milk fat globule. This antigen is expressed on the surface of MX-1 cells, the transplantable human tumor used in this study. Tumor-bearing mice treated with both the drug protocol and 131I-Mc5 (540 microCi, 10 microCi/micrograms) showed a regression in average tumor volume. The average tumor volume was reduced below the initial size at treatment for 50 days; two of five cures were obtained. Neither cures nor regressions were observed with either the drug or antibody treatments alone. Our results indicate the potential for increasing the therapeutic effectiveness of radioimmunotherapy of human solid tumors with halogenated pyrimidines.

Topics: Animals; Aspartic Acid; Breast Neoplasms; Deoxycytidine; Drug Therapy, Combination; Humans; Idoxuridine; Mice; Mice, Inbred BALB C; Mice, Nude; Neoplasm Transplantation; Phosphonoacetic Acid; Radiation-Sensitizing Agents; Radioimmunotherapy; Tetrahydrouridine; Transplantation, Heterologous

Several mechanisms of action have been proposed for the antitumor agents, 5-fluorouracil (FUra) and 5-fluorodeoxyuridine (FdUrd), including their incorporation into both cellular RNA and DNA. Another fluorinated pyrimidine, 5-fluorodeoxycytidine (FdCyd), has been shown to be even more active than FdUrd against certain experimental tumors. Although FdCyd is deaminated to FdUrd, the precise mechanism of action of this agent has remained unclear. We have therefore monitored the incorporation of FdCyd and its metabolites into the nucleic acids of human MCF-7 breast carcinoma cells. The results demonstrate the internucleotide incorporation of FdCyd in MCF-7 DNA. The results also demonstrate that FUra residues are detectable in both MCF-7 DNA and RNA following treatment with FdCyd. Cytidine and deoxycytidylate deaminase inhibitors increased the extent of (FdCyd) DNA synthesis, but they had little if any effect on formation of (FUra) RNA. In contrast, deoxyuridine increased incorporation of FdCyd into DNA and blocked the formation of FUra RNA. Deoxyuridine also enhanced the cytotoxicity associated with FdCyd treatment. The present results further demonstrate that FdCyd inhibits postsynthetic methylation of MCF-7 DNA. These findings would suggest that FdCyd has multiple mechanisms of action and that incorporation of this agent into DNA distinguishes its effects from those of FUra and FdUrd.

Topics: Azacitidine; Breast Neoplasms; Cell Line; Cell Survival; Decitabine; Deoxycytidine; Deoxyuridine; DNA, Neoplasm; Floxuridine; Humans; Methylation; RNA, Neoplasm; Tetrahydrouridine