nitrophenols and Malaria

Glycogen synthase kinase-3 (GSK-3) is a regulator of signaling pathways. KRas is frequently mutated in pancreatic cancers. The growth of certain pancreatic cancers is KRas-dependent and can be suppressed by GSK-3 inhibitors, documenting a link between KRas and GSK-3. To further elucidate the roles of GSK-3β in drug-resistance, we transfected KRas-dependent MIA-PaCa-2 pancreatic cells with wild-type (WT) and kinase-dead (KD) forms of GSK-3β. Transfection of MIA-PaCa-2 cells with WT-GSK-3β increased their resistance to various chemotherapeutic drugs and certain small molecule inhibitors. Transfection of cells with KD-GSK-3β often increased therapeutic sensitivity. An exception was observed with cells transfected with WT-GSK-3β and sensitivity to the BCL2/BCLXL ABT737 inhibitor. WT-GSK-3β reduced glycolytic capacity of the cells but did not affect the basal glycolysis and mitochondrial respiration. KD-GSK-3β decreased both basal glycolysis and glycolytic capacity and reduced mitochondrial respiration in MIA-PaCa-2 cells. As a comparison, the effects of GSK-3 on MCF-7 breast cancer cells, which have mutant

Topics: Adenocarcinoma; Adenylate Kinase; Antineoplastic Agents; bcl-X Protein; Berberine; Biphenyl Compounds; Breast Neoplasms; Cell Line, Tumor; Cell Proliferation; Deoxycytidine; Diabetes Mellitus; Dietary Supplements; Disease Progression; Doxorubicin; Female; Fluorouracil; Gemcitabine; Glycogen Synthase Kinase 3 beta; Glycolysis; Humans; Inhibitory Concentration 50; Malaria; MCF-7 Cells; Metformin; Molecular Targeted Therapy; Neoplasm Metastasis; Nitrophenols; Pancreatic Neoplasms; Piperazines; Protein Kinase Inhibitors; Signal Transduction; Sulfonamides; Thiadiazoles; Tumor Stem Cell Assay

In an enzyme-linked immunosorbent assay test for malaria antibodies, antibodies to Plasmodium vivax and P. falciparum in man are detected using a crude antigen prepared from the simian malaria parasite P. knowlesi. The test may be suitable for epidemiological studies.

Topics: Adsorption; Alkaline Phosphatase; Animals; Antibodies; Antigens; Humans; Macaca mulatta; Malaria; Nitrophenols; Plasmodium; Plasmodium falciparum; Plasmodium vivax; Serologic Tests; Spectrophotometry

Topics: Acetanilides; Animals; Antimalarials; Malaria; Mice; Mice, Inbred DBA; Nitrophenols; Plasmodium berghei; Sulfones

Topics: Aniline Compounds; Animals; Anisoles; Blood Cell Count; Cytochromes; Endoplasmic Reticulum; Enzyme Induction; Hexobarbital; Malaria; Male; Microsomes, Liver; Morphinans; Nitrophenols; Phenobarbital; Phenylhydrazines; Plasmodium; Proteins; Rats; Reticulocytes; Sleep; Time Factors