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PURPOSE: This research study is studying biomarkers in samples from young patients with acute myeloid leukemia.
- Determine the extent and prognostic implications of variable s-SHIP expression and SHIP gene mutations in pediatric patients with acute myeloid leukemia.
- Determine the effects of aberrant s-SHIP expression on the PI3K/Akt pathway in these patients via electrochemiluminescence and phosphospecific flow cytometry assays.
OUTLINE: RNA samples are analyzed for variable s-SHIP expression and are screened for SHIP mutations. Cryopreserved cells (with known high- or low-s-SHIP expression) are analyzed for the levels of various components of the PI3K/Akt pathway via electrochemiluminescence and phosphospecific flow cytometry.
gene expression analysis, mutation analysis, flow cytometry, laboratory biomarker analysis
Active, not recruiting
National Cancer Institute (NCI)
Published on BioPortfolio: 2014-08-27T03:13:08-0400
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MOLECULAR BIOLOGY techniques used in the diagnosis of disease. Included are such techniques as IN SITU HYBRIDIZATION of chromosomes for CYTOGENETIC ANALYSIS; OLIGONUCLEOTIDE ARRAY SEQUENCE ANALYSIS of gene expression patterns in disease states; identification of pathogenic organisms by analysis of species specific DNA sequences; and detection of mutations with POLYMERASE CHAIN REACTION.
A technique encompassing morphometry, densitometry, neural networks, and expert systems that has numerous clinical and research applications and is particularly useful in anatomic pathology for the study of malignant lesions. The most common current application of image cytometry is for DNA analysis, followed by quantitation of immunohistochemical staining.
The analysis of a chemical substance by inserting a sample into a carrier stream of reagent using a sample injection valve that propels the sample downstream where mixing occurs in a coiled tube, then passes into a flow-through detector and a recorder or other data handling device.
A scanning microscope-based, cytofluorimetry technique for making fluorescence measurements and topographic analysis on individual cells. Lasers are used to excite fluorochromes in labeled cellular specimens. Fluorescence is detected in multiple discrete wavelengths and the locational data is processed to quantitatively assess APOPTOSIS; PLOIDIES; cell proliferation; GENE EXPRESSION; PROTEIN TRANSPORT; and other cellular processes.
Body of knowledge related to the use of organisms, cells or cell-derived constituents for the purpose of developing products which are technically, scientifically and clinically useful. Alteration of biologic function at the molecular level (i.e., GENETIC ENGINEERING) is a central focus; laboratory methods used include TRANSFECTION and CLONING technologies, sequence and structure analysis algorithms, computer databases, and gene and protein structure function analysis and prediction.
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Head and neck cancers
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