摘要:
A method of detecting binding interactions and target molecules, such as proteins, protein fragments, recombinant proteins, recombinant protein fragments, extracellular matrix proteins, ligands, carbohydrates, steroids, hormones, drugs, drug candidates, immunoglobulins and receptors of eukaryotic, prokaryotic or viral origin, by mediated electrochemistry using labels that react with transition metal mediator complexes in a detectable catalytic redox reaction. These labels are attached directly to binders, target molecules, surrogate target molecules, or to affinity ligands capable of binding to the target or to surrogate target molecules capable of competing with the target for binding to another binder. The labels can be naturally present (endogenous) in the binder, target or affinity ligand, or constructed by the covalent attachment of the label to the binder, target, affinity ligand or surrogate target (exogenous).
摘要:
A method of detecting two different target molecules through a single electrode is carried out by (a) providing a conductive oxidation-reduction reaction detection electrode; (b) contacting a sample suspected of containing a first and second target molecule to the electrode under conditions in which the first and second target molecules are deposited on the electrode, wherein the first target molecule comprises a first label and the second target molecule comprises a second label; (c) contacting to the electrode a first transition metal complex that oxidizes the first preselected label in a first oxidation-reduction reaction and a second transition metal complex that oxidizes the first and second labels in a second oxidation-reduction reaction, with the first and second oxidation-reduction reactions producing different detectable signals; (d) detecting the presence of the first target molecule by detecting the first oxidation-reduction reaction; and (e) detecting the presence of the second target molecule by detecting the second oxidation-reduction reaction. Devices for carrying out the method are also described.
摘要:
Compositions and methods for diagnosing ovarian cancer in a patient and for identifying patients with an increased likelihood of having ovarian cancer are provided. The compositions include novel monoclonal antibodies, and variants and fragments thereof, that specifically bind to glycodelin. Monoclonal antibodies having the binding characteristics of a glycodelin antibody of the invention and monoclonal antibodies that bind to a glycodelin epitope of a disclosed antibody are further provided. Hybridoma cell lines that produce a glycodelin monoclonal antibody of the invention are also disclosed herein. Kits comprising one or more of the disclosed glycodelin monoclonal antibodies and for practicing the methods of the invention are further provided. Polypeptides comprising the amino acid sequence for a glycodelin epitope of a disclosed monoclonal glycodelin antibody and methods of using these polypeptides in the production of glycodelin antibodies are also encompassed by the present invention.
摘要:
Compositions and methods for diagnosing ovarian cancer in a patient and for identifying patients with an increased likelihood of having ovarian cancer are provided. The compositions include novel monoclonal antibodies, and variants and fragments thereof, that specifically bind to HE4. Monoclonal antibodies having the binding characteristics of an HE4 antibody of the invention are further provided. Hybridoma cell lines that produce an HE4 monoclonal antibody of the invention are also disclosed herein. The compositions find use in diagnostic methods as well as in screening methods for identifying patients having an increased likelihood of having ovarian cancer. Kits comprising one or more of the disclosed HE4 monoclonal antibodies and for practicing the methods of the invention are further provided. Polypeptides comprising the amino acid sequence for an HE4 epitope and methods of using these polypeptides in the production of antibodies are also encompassed by the present invention.
摘要:
Methods and compositions for identifying ovarian cancer in a patient sample are provided. The methods of the invention comprise detecting overexpression of at least one biomarker in a body sample, wherein the biomarker is selectively overexpressed in ovarian cancer. In preferred embodiments, the body sample is a serum sample. The biomarkers of the invention include any genes or proteins that are selectively overexpressed in ovarian cancer, including, for example, acute phase reactants, lipoproteins, proteins involved in the regulation of the complement system, regulators of apoptosis, proteins that bind hemoglobin, heme, or iron, cytostructural proteins, enzymes that detoxify metabolic byproducts, growth factors, and hormone transporters. In some aspects of the invention, overexpression of a biomarker of interest is detected at the protein level using biomarker-specific antibodies or at the nucleic acid level using nucleic acid hybridization techniques. Kits for practicing the methods of the invention are further provided.
摘要:
Screening methods for identifying patients with an increased likelihood of having ovarian cancer are provided. The screening methods involve the detection of expression of a plurality of biomarkers in a body sample, wherein overexpression of the biomarkers is indicative of an increased likelihood of having ovarian cancer. The screening methods may further comprise a two-step analysis. Biomarkers of interest include genes and proteins that are, for example, involved in defects in DNA replication/cell cycle control, cell growth and proliferation, escape from apoptosis, angiogenesis or lymphogenesis, or the mechanisms of cancer cell motility and invasion. In some aspects of the invention, expression of a biomarker is detected at the protein level using a biomarker-specific antibody or at the nucleic acid level using nucleic acid hybridization techniques. Methods for detecting ovarian cancer in patients are further disclosed herein. Kits for practicing the methods of the invention are further provided.
摘要:
Compositions and methods for diagnosing ovarian cancer in a patient and for identifying patients with an increased likelihood of having ovarian cancer are provided. The compositions include novel monoclonal antibodies, and variants and fragments thereof, that specifically bind to glycodelin. Monoclonal antibodies having the binding characteristics of a glycodelin antibody of the invention and monoclonal antibodies that bind to a glycodelin epitope of a disclosed antibody are further provided. Hybridoma cell lines that produce a glycodelin monoclonal antibody of the invention are also disclosed herein. The compositions find use in diagnostic methods as well as in screening methods for identifying patients having an increased likelihood of having ovarian cancer. Kits comprising one or more of the disclosed glycodelin monoclonal antibodies and for practicing the methods of the invention are further provided. Polypeptides comprising the amino acid sequence for a glycodelin epitope of a disclosed monoclonal glycodelin antibody and methods of using these polypeptides in the production of glycodelin antibodies are also encompassed by the present invention.
摘要:
Compositions and methods for diagnosing ovarian cancer in a patient and for identifying patients with an increased likelihood of having ovarian cancer are provided. The compositions include novel monoclonal antibodies, and variants and fragments thereof, that specifically bind to glycodelin. Monoclonal antibodies having the binding characteristics of a glycodelin antibody of the invention and monoclonal antibodies that bind to a glycodelin epitope of a disclosed antibody are further provided. Hybridoma cell lines that produce a glycodelin monoclonal antibody of the invention are also disclosed herein. The compositions find use in diagnostic methods as well as in screening methods for identifying patients having an increased likelihood of having ovarian cancer. Kits comprising one or more of the disclosed glycodelin monoclonal antibodies and for practicing the methods of the invention are further provided. Polypeptides comprising the amino acid sequence for a glycodelin epitope of a disclosed monoclonal glycodelin antibody and methods of using these polypeptides in the production of glycodelin antibodies are also encompassed by the present invention.
摘要:
Screening methods for identifying patients with an increased likelihood of having ovarian cancer are provided. The screening methods involve the detection of expression of a plurality of biomarkers in a body sample, wherein overexpression of the biomarkers is indicative of an increased likelihood of having ovarian cancer. The screening methods may further comprise a two-step analysis. Biomarkers of interest include genes and proteins that are, for example, involved in defects in DNA replication/cell cycle control, cell growth and proliferation, escape from apoptosis, angiogenesis or lymphogenesis, or the mechanisms of cancer cell motility and invasion. In some aspects of the invention, expression of a biomarker is detected at the protein level using a biomarker-specific antibody or at the nucleic acid level using nucleic acid hybridization techniques. Methods for detecting ovarian cancer in patients are further disclosed herein. Kits for practicing the methods of the invention are further provided.
摘要:
Compositions and methods for diagnosing ovarian cancer in a patient and for identifying patients with an increased likelihood of having ovarian cancer are provided. The compositions include novel monoclonal antibodies, and variants and fragments thereof, that specifically bind to HE4. Monoclonal antibodies having the binding characteristics of an HE4 antibody of the invention are further provided. Hybridoma cell lines that produce an HE4 monoclonal antibody of the invention are also disclosed herein. The compositions find use in diagnostic methods as well as in screening methods for identifying patients having an increased likelihood of having ovarian cancer. Kits comprising one or more of the disclosed HE4 monoclonal antibodies and for practicing the methods of the invention are further provided. Polypeptides comprising the amino acid sequence for an HE4 epitope and methods of using these polypeptides in the production of antibodies are also encompassed by the present invention.