Memorial Sloan Kettering Cancer Center

Sloan-kettering Institute for Cancer Research

Memorial Hospital for Cancer and Allied Diseases

Martin Fleisher

Howard Scher

Daniel C Danila

H Leon Bradlow

Daniel Danila

Sidney J Winawer

Morton K Schwartz

Howard I Scher

The invention relates to a method for the Cell Type specific labeling with Amino acid Precursors (CTAP). In particular, the disclosed method permits the incorporation of stable isotope-labeled amino acids into the proteome of a vertebrate cell that has been engineered to express an exogenous enzyme that enables the cell to produce an essential amino acid from its amino acid substrate. The method employs stable isotope-labeled amino acid substrate/precursors from which essential amino acids bearing the label are generated. The labeled amino acids generated by the transgenic cell not only supports growth but specifically labels proteins of the transgenic cell. Furthermore, the use of different populations of cells expressing different exogenous amino acid-producing enzymes permits differential labeling of the proteomes of the individual cell populations in multicellular environments.

Genes associated with dasatinib sensitivity

Using an RT-PCR platform, detection of gene transcripts highly expressed in prostate tissue and expressed in peripheral blood mononuclear cells (PBMC) from patients with mCRPC can provide a more reliable and robust prediction of poor overall survival than that of CTC enumeration in mCRPC. Disclosed is the identification of five genes, KLK3, KLK2, HOXB13, GHRL2 and FOXA1, the detection of two (2) or more transcripts of which predicts overall poor survival. The test is performed on blood samples that have been collected in collection tubes that stabilize intracellular RNA, require minimal on-site processing and can be easily stored and shipped for subsequent extraction of total RNA from whole blood for RT-PCR.

Gene expression profile associated with prostate cancer

A method for screening breast cyst fluid to identify patients having a high risk of developing breast cancer, comprising the steps of measuring the chloride ion content of breast cyst fluid aspirated from the patient; and correlating the chloride ion concentration with the risk of developing breast cancer.

Breast cyst fluid screening method for cancer risk assessment

A process and reagent for determining the presence of fecal occult blood in a test sample using a guaiac-peroxidase test matrix and a means for inhibiting peroxidase enzyme interferences which combines the partial denaturing of peroxidase enzyme protein using a protein-hydrogen bond cleaving agent, with the removal of metals necessary for efficient peroxidase enzyme activity wherein the improvement comprises dissolving said reagent for cleaving protein-hydrogen bonds in an alcohol-water solvent before adding said reagent to the sample.

Solvent system for peroxidase inhibitor reagent for fecal occult blood

A sampling system for stool analysis provides an elongated handle and a cylindrical coring device, said handle including means for releasibly holding said coring device. The coring device is inserted into the stool to collect a representative sample. The sample is removed for analysis, as required.

Sampling system for stool analysis

Diagnostic test device for fecal occult blood utilizing a test matrix such as paper impregnated with guaiac. False-positive results in the presence of peroxidases are prevented by adding to the matrix a compound that cleaves protein hydrogen bonds such as guanidine hydrochloride and a chelating agent that binds calcium and/or magnesium such as EDTA.

Growing community of inventors

Glen Cove, NY, United States of America

Martin Fleisher