Involving Immune Complex Formed In Liquid Phase Patents (Class 436/536)
  • Patent number: 7232891
    Abstract: The subject invention provides a method for detecting the presence of human malignant cells in a sample of tumor cells, which comprises contacting the sample with an antibody directed to an epitope present on the ? subunit of human luteinizing hormone or on intact human luteinizing hormone under conditions such that the antibody forms a complex with cells present in the sample if the epitope is present on the surface of the cells, and determining whether the antibody forms such a complex. The subject invention also provides a method for determining whether a tumor present in a human subject is malignant which comprises obtaining a sample of cells from the tumor and detecting the presence of malignant cells in the sample according to the method of the subject invention.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: June 19, 2007
    Assignees: The Trustees of Columbia University in the city of New York, Allegheny-Singer Research Institute
    Inventors: Hernan Acevedo, Alexander Krichevsky
  • Patent number: 7217533
    Abstract: Acquired and de novo endocrine resistance are major clinical problems in the management of breast cancer patients. Though the antiestrogen tamoxifen prolongs disease-free and overall survival in the adjuvant setting, and induces remissions in over half of the patients with estrogen receptor positive metastatic disease, all patients eventually acquire tamoxifen resistance. Furthermore, many of the resistant tumors actually appear to be stimulated by tamoxifen just as they are by estrogens. The present invention provides methods of predicting endocrine resistance comprising detecting the biological activity and/or expression of p38 MAPK and/or AIB1. The invention further provides methods of reducing, reversing, or preventing endocrine resistance comprising contacting a breast or prostate tumor with a p38 MAPK pathway inhibitor.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: May 15, 2007
    Assignee: Baylor College of Medicine
    Inventors: C. Kent Osborne, Rachel Schiff, Jiang Shou
  • Patent number: 7211443
    Abstract: The invention is directed to a method and device for simultaneously testing a sample for the presence, absence, and/or amounts of one or more a plurality of selected analytes. The invention includes, in one aspect, a device for detecting or quantitating a plurality of different analytes in a liquid sample. The device includes a substrate which defines a sample-distribution network having (i) a sample inlet, (ii) one or more detection chambers, and (iii) channel means providing a dead-end fluid connection between each of the chambers and the inlet. Each chamber may include an analyte-specific reagent effective to react with a selected analyte that may be present in the sample, and detection means for detecting the signal. Also disclosed are methods utilizing the device.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: May 1, 2007
    Assignee: Applera Corporation
    Inventors: Timothy M. Woudenberg, Michael Albin, Reid B. Kowalis, Yefim Raysberg, Robert P. Ragusa, Emily S. Winn-Deen
  • Patent number: 7211440
    Abstract: The invention relates to an enhancement solution for an assay technology using lanthanide ions or their chelates as labels and dissociative fluorescence enhancement as a tool for detection, wherein said enhancement solution comprises a ?-diketone of formula I wherein R1 is an aryl, optionally mono- or multi-substituted, and R2 is a straight or branched alkyl chain with 2 to 9 carbon atoms substituted with four or more fluorine atoms. The invention further relates to a bioaffinity assay using lanthanide ions or their chelates as labels and dissociative fluorescence enhancement as a tool for detection comprising the use of said enhancement solution.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: May 1, 2007
    Assignee: Wallac Oy
    Inventors: Iikka Hemmilä, Kaj Blomberg, Veli-Matti Mukkala, Harri Hakala
  • Patent number: 7202044
    Abstract: The invention relates to defined peptides and the quantitative determination thereof in body fluids of patients suffering from progredient chronic dementia, in relation to the concentration of said peptides in a control group. The inventive peptides come from a protein precursor having the corresponding gene, are processed in a specific manner, and are optionally post-translationally modified, especially phosphorylized. An increase in the concentrations of these peptides or the corresponding non-processed protein indicates progredient chronic dementia. Progredient chronic dementia is detected by identifying the peptides and/or the protein individually or in combinations. The invention also relates to the use of said peptides for controlling the course of progredient chronic dementia and for the prognosis of progredient chronic dementia, especially for complementing or replacing mini-mental scores, and for developing therapeutic agents to combat progredient chronic dementia such as Alzheimer's disease.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: April 10, 2007
    Assignee: Biovision AG
    Inventors: Norbert Lamping, Hans-Dieter Zucht, Harmut Selle, Michael Jürgens, Gabriele Heine, Rüdiger Hess
  • Patent number: 7202041
    Abstract: The present invention relates to an immunoreaction measuring method for measuring an antigen or antibody contained as a subject substance in a sample, wherein the sample was mixed with at least one compound selected from the group consisting of dicarboxylic acids having a hydroxyl group, dicarboxylic acids having a double bond, straight-chain dicarboxylic acids expressed by the chemical formula (1): HOOC(CH2)nCOOH (n is an integer), and the salts of these dicarboxylic acids, and an antibody or antigen as a specifically binding substance capable of specifically binding to the subject substance, to obtain an acidic reaction solution, and then an antigen-antibody complex, generated by an antigen-antibody reaction of the subject substance with the specifically binding substance in the reaction solution was detected. This makes it possible to improve a measurement value and to relax a limitation of a measurement range due to a zone phenomenon that occurs in an antigen-excess region.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: April 10, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akihito Kamei, Tatsurou Kawamura, Keiko Yugawa
  • Patent number: 7179655
    Abstract: Methods and compositions are described for analyzing complex protein mixtures, such as proteomes, using activity-based probes. In particular, probes that specifically react with and bind to the active form of one or more target proteins are employed. Labeled peptides obtained from the labeled active target proteins can be used in screening and identification procedures, and can be related to the identity, presence, amount, or activity of active members of the desired target protein class. The methods and compositions described herein can be used, for example, to provide diagnostic information concerning pathogenic states, in identifying proteins that may act as therapeutic targets, and in drug discovery.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: February 20, 2007
    Assignee: Activx Biosciences, Inc.
    Inventor: Matthew Patricelli
  • Patent number: 7179605
    Abstract: The instant invention involves the use of a combination of preparatory steps in conjunction with mass spectroscopy and time-of-flight detection procedures to maximize the diversity of biopolymers which are verifiable within a particular sample. The cohort of biopolymers verified within such a sample is then viewed with reference to their ability to evidence at least one particular disease state; thereby enabling a diagnostician to gain the ability to characterize either the presence or absence of at least one disease state relative to recognition of the presence and/or the absence of the biopolymer, predict disease risk assessment, and develop therapeutic avenues against the disease.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: February 20, 2007
    Assignee: Nanogen Inc.
    Inventors: George Jackowski, John Marshall
  • Patent number: 7176036
    Abstract: Methods and devices for electrochemical detection of a specific binding pair member utilizing a microsphere with an incorporated electroactive marker, wherein a member of the specific binding pair to be detected is bound, directly or through one or more intermediates, to the microsphere. Multiple specific binding pair members may be detected by use of electrochemically distinguishable electroactive markers. Microspheres with incorporated electroactive markers may include one or more functional groups for binding members of specific binding pairs, and are preferably insoluble in aqueous solvents but soluble in selected organic solvents.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: February 13, 2007
    Assignee: Arrowhead Center, Inc.
    Inventors: Joseph Wang, Ronen Polsky, Kathryn L. Turner
  • Patent number: 7172874
    Abstract: Diagnostic methods for identifying a test subject who has or is at risk of developing age-related macular degeneration (AMD) or an analogous disease associated with oxidation of DHA-containing lipids are provided. In one aspect, the methods comprise: assaying for the presence of elevated levels of 2-(?-carboxyethyl) pyrrole (CEP) adducts in a bodily fluid which has been obtained from the test subject. In a preferred embodiment, such methods comprise providing an antibody that is immunospecific for CEP, contacting a bodily fluid from the subject with the anti-CEP antibody, and assaying for the formation of a complex between the antibody and an antigen in the sample. In another aspect, the methods comprise assaying for the presence of elevated levels of an antibody that binds to or is immunospecific for a CEP adduct in the bodily fluid of the test subject. The present invention also relates to CEP protein and peptide adducts, an antibody reactive with a CEP adduct and a diagnostic kit comprising such antibody.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: February 6, 2007
    Assignees: The Cleveland Clinic Foundation, Case Western Reserve University
    Inventors: Joe G. Hollyfield, Robert G. Salomon, John W. Crabb, Xiaorong Gu
  • Patent number: 7169618
    Abstract: An improved method for separating materials is provided, using colloidal, magnetizable aggregates, optionally silanized, and coated with a one or more layers of novel polysaccharide derivatives. Materials separated by the aggregates of the invention include inorganic and organic molecules, viruses, organelles, and cells. The invention also relates to a kit for separating such materials. The separated materials are useful in analytical and preparative or in diagnostic and therapeutic techniques.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: January 30, 2007
    Assignee: Skold Technology
    Inventor: Carl Nelson Skold
  • Patent number: 7166423
    Abstract: Cells can be labeled with products which they secrete and release in an efficient manner by coupling the cells at their surface to a specific binding partner for the product and allowing the product to be captured by the specific binding partner as it is secreted and released. The product-labeled cells can then be further coupled to suitable labels, if desired, and separated according to the presence, absence, or amount of product.
    Type: Grant
    Filed: October 21, 1993
    Date of Patent: January 23, 2007
    Assignee: Miltenyi Biotec GmbH
    Inventors: Stefan Miltenyi, Andreas Radbruch, Rudi Manz
  • Patent number: 7166476
    Abstract: The present invention provides an agglutination immunoassay, wherein the agglutination of insoluble carrier particles such as latex are stabilized and uniformized to give good reproducibility, and a reagent therefor. In the agglutination immunoassay which comprises allowing an antigenic substance in a sample to bind to insoluble carrier particles carrying substantially neither antigens nor antibodies thereon, and allowing an antibody or an antibody complex which reacts specifically to the antigenic substance to bind to the antigenic substance to give a selective agglutination of the insoluble carrier particles, a homopolymer prepared by polymerization of a monomer such as 2-methacryloyloxyethyl phosphorylcholine having a phosphorylcholine group and a vinyl group, or a copolymer prepared by polymerization of a monomer having a phosphorylcholine group and a vinyl group, with a monomer having a vinyl group such as n-butyl methacrylate is used.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: January 23, 2007
    Assignees: Kyowa Medex Co., Ltd., NOF Corporation
    Inventors: Kayoko Shigenobu, Kenshiro Shuto, Shujiro Sakaki
  • Patent number: 7166477
    Abstract: A method of preparing a sample of muscle tissue and of assaying the prepared sample to determine the presence of prions in the sample is disclosed. The muscle tissue is homogenized and mixed with a complexing agent which forms a complex with a higher specific gravity than PrPSc, the complexing agent or other components of the homogenate. Gravity is then used (e.g. ultra centrifugation) to concentrate the complex and the concentrate is assayed to detect prions. The muscle tissue is preferably extracted from a muscle or group of muscles such as hind limb muscle which have a higher or more preferably the highest concentration of prions as compared to other muscle in the mammal.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: January 23, 2007
    Assignee: The Regents of the University of California
    Inventors: Stanley B. Prusiner, Patrick Bosque
  • Patent number: 7160686
    Abstract: The present invention pertains to the field of medicine and may be used for producing a specific antiserum as well as for carrying out immunological diagnoses of malignant tumours. This method for producing an antiserum involves sampling an embryo at the foetal stage from animals of a same genetic type so as to obtain a cell suspension. After immunization, this method involves sampling spleen cells from the animal, separating lymphocytes and immunizing the animal of the same genetic line using the lymphocyte suspension. An antiserum is then obtained and cells originating from healthy organs of the same animals are added to the antiserum. The mixture is finally decanted and the liquid located above the sediments is filtered. In order to carry out a diagnosis, the filtrate is added to the subject's blood and the results are obtained by immuno-fluorescence, by blood tests or using other methods of immunological diagnosis.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: January 9, 2007
    Assignee: Widnes Company Inc.
    Inventors: Galina Mikhailivna Erkhova, legal representative, Valentin Sergeevich Erkhov, deceased
  • Patent number: 7153660
    Abstract: Methods and kits for diagnosing the presence of and prognosing the appearance of tissue remodelling-associated conditions, involving the presence of enzyme complexes in a biological sample, are disclosed. In particular, the method pertains to diagnosing the presence of or prognosing appearance of metastatic cancer by the identification of high molecular weight enzyme complexes comprising MMPs.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: December 26, 2006
    Assignee: Children's Medical Center Corporation
    Inventors: Marsha A. Moses, Li Yan
  • Patent number: 7153661
    Abstract: A fibronectin type III (Fn3) polypeptide monobody, a nucleic acid molecule encoding said monobody, and a variegated nucleic acid library encoding said monobody, are provided by the invention. Also provided are methods of preparing a Fn3 polypeptide monobody, and kits to perform said methods. Further provided is a method of identifying the amino acid sequence of a polypeptide molecule capable of binding to a specific binding partner (SBP) so as to form a polypeptide:SSP complex, and a method of identifying the amino acid sequence of a polypeptide molecule capable of catalyzing a chemical reaction with a catalyzed rate constant, kcat, and an uncatalyzed rate constant, kuncat, such that the ratio of kcat/kuncat is greater than 10.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: December 26, 2006
    Assignee: Research Corporation Technologies, Inc.
    Inventor: Shohei Koide
  • Patent number: 7151000
    Abstract: A sample is prepared from blood in a manner which makes it possible to further analyze proteins in the sample, e.g. to detect prions in the sample. Blood is extracted, allowed to clot and subjected to separation processing (e.g. centrifugation) to obtain serum. The serum is treated with a complexing agent which agent binds prions in the sample forming an agent/protein complex which makes it possible to concentrate the complex. Concentration of the complex results in a sample which can be successfully analyzed, e.g. assayed using a range of different types of assay methodologies for detecting prions.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: December 19, 2006
    Assignee: The Regents of the University of California
    Inventors: Stanley B. Prusiner, Jiri G. Safar
  • Patent number: 7144704
    Abstract: This invention relates to immunological reagents and methods specific for a mammalian, transmembrane protein termed Pgp, having a non-specific efflux pump activity established in the art as being a component of clinically-important multidrug resistance in cancer patients undergoing chemotherapy. The invention provides methods for developing and using immunological reagents specific for certain mutant forms of Pgp and for wild-type Pgp in a conformation associated with substrate binding or in the presence of ATP depleting agents. The invention also provides improved methods for identifying and characterizing anticancer compounds.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: December 5, 2006
    Assignee: Oncotech, Inc.
    Inventors: Eugene Mechetner, John Fruehauf
  • Patent number: 7141376
    Abstract: The present invention provides compositions and methods for detecting mutations associated with polycystic kidney disease in the cat.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: November 28, 2006
    Inventors: Leslie A. Lyons, Robert A. Grahn, Carolyn A. Erdman
  • Patent number: 7135297
    Abstract: The instant invention involves the use of a combination of preparatory steps in conjunction with mass spectroscopy and time-of-flight detection procedures to maximize the diversity of biopolymers which are verifiable within a particular sample. The cohort of biopolymers verified within such a sample is then viewed with reference to their ability to evidence at least one particular disease state; thereby enabling a diagnostician to gain the ability to characterize either the presence or absence of at least one disease state relative to recognition of the presence and/or the absence of the biopolymer, predict disease risk assessment, and develop therapeutic avenues against disease.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: November 14, 2006
    Assignee: Nanogen Inc.
    Inventors: George Jackowski, John Marshall
  • Patent number: 7118924
    Abstract: An improved method for producing human antibodies in SCID mice is provided. The improvement includes the use of dendritic cells pulsed with antigen-antibody complexes and antigen-antibody complexes as immunizing agents.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: October 10, 2006
    Assignee: Biogen IDEC Inc.
    Inventors: Marco Anthony Coccia, Peter Brams
  • Patent number: 7118853
    Abstract: The invention provides a variety of reagents for use in the diagnosis and management of breast cancer. The invention utilizes cDNA microarray technology to identify genes whose expression profile across a large group of tumor samples correlates with that of cytokeratin 5 and cytokeratin 17, markers for basal cells of the normal mammary lactation gland. The invention demonstrates that tumors that express cytokeratin 5/6 and/or 17 have a poor prognosis relative to tumors overall. The invention provides basal marker genes and their expression products and uses of these genes for diagnosis of breast cancer and for identification of therapies for breast cancer. In particular, the invention provides basal marker genes including cadherin3, matrix metalloproteinase 14, and cadherin EGF LAG seven-pass G-type receptor 2. The invention provides antibodies to the polypeptides expressed by these genes and methods of use thereof.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: October 10, 2006
    Assignees: Applied Genomics, Inc., Board of Trustees of Leland Stanford Junior University
    Inventors: David Botstein, Patrick O. Brown, Charles M. Perou, Brian Ring, Douglas Ross, Rob Seitz, Jan Matthijs van de Rijn
  • Patent number: 7108986
    Abstract: Glycosylphosphatidylinositol-(GPI-) anchored HSPG glypican-1 is strongly expressed in human breast and pancreatic cancer—both by the cancer cells and in the case of pancreatic cancer the adjacent fibroblasts—whereas expression of glypican-1 is low in the normal pancreas and in chronic pancreatitis. Treatment of two pancreatic cancer cell lines, which express glypican-1, with the enzyme phosphoinositide-specific phospholipase-C (PI-PLC) abrogated their mitogenic responses to two heparin-binding growth factors: fibroblast growth factor-2 (FGF2) and heparin-binding EGF-like growth factor (HB-EGF). Treatment of MDA-MB-231 and MDA-MB-468 breast cancer cells with PI-PLC abrogates the mitogenic response to two heparin-binding growth factors, heparin-binding epidermal growth factor-like growth factor (HB-EGF) and fibroblast growth factor-2 (FGF-2). Syndecan-1 is also expressed at high levels in breast cancer tissues as well as breast cancer cells by comparison with breast normal tissues.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: September 19, 2006
    Assignee: The Regents of the University of California
    Inventors: Murray Korc, Arthur D. Lander
  • Patent number: 7097983
    Abstract: The invention features a method of determining whether one or more members of an analyte family are present in a sample. The method makes use of a test zone binder, e.g., a receptor that can bind one or a plurality of analytes within an analyte family, the analytes family defined by similar structural binding sites. Members of an analyte family can have different detection level requirements and, therefore, additional analyte binders can be employed to adjust test sensitivity for a subset of the analytes in the analyte family individually, so that each analyte can be detected only if it is present in the sample above a predetermined threshold.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: August 29, 2006
    Assignee: Charm Sciences, Inc.
    Inventors: Robert J. Markovsky, Cheryl A. Boyer, Stanley E. Charm, Paul R. Donahue, Yael Agi Glickman, Steven J. Saul, Joan L. Scheemaker, Richard T. Skiffington, Shefali B. Trivedi, Eliezer Zomer
  • Patent number: 7090988
    Abstract: A device for detecting the presence of an antigen including (1) a cell having antibodies which are expressed on the surface of the cell and are specific for the antigen to be detected, where binding of the antigen to the antibodies results in an increase in calcium concentration in the cytosol of the cell, the cell further having a emitter molecule which, in response to the increased calcium concentration in the cytosol, emits a photon; (2) a liquid medium for receiving the antigen and in which the cell is immersed; and (3) an optical detector arranged for receiving the photon emitted from the cell.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: August 15, 2006
    Assignee: Massachusetts Institute of Technology
    Inventors: Todd H. Rider, Laura Bortolin
  • Patent number: 7087395
    Abstract: The present invention features a kit and a method of using the kit for determining a concentration of a vitamin D component. The kit comprises a releasing composition and a detecting composition. The releasing composition comprises an aqueous base component. In one embodiment, the releasing composition is substantially free from an organic solvent.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: August 8, 2006
    Assignee: Quest Diagnostics Investments Incorporated
    Inventors: Martha Garrity, Jacqueline Tran
  • Patent number: 7081334
    Abstract: The present invention provides a method for quantifying the presence of extracellular LBP in body fluids including blood in a subject comprising conducting an LBP immunoassay on plasma obtained from said subject.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: July 25, 2006
    Assignee: Xoma Corporation
    Inventors: Mark Leslie White, Stephen Fitzhugh Carroll, Jeremy Kam-kuen Ma
  • Patent number: 7081348
    Abstract: There is provided an immunoassay by which the amount of human medullasin present inside granulocytes, which are one leukocyte component in blood, can be determined with high accuracy and with good reproducibility. Also provided is an immunoassay of medullasin, wherein when measuring the medullasin in blood using an anti-human medullasin antibody, the determination of the amount of human medullasin in a blood sample using said anti-human medullasin antibody is carried out after treating the blood sample with an aqueous liquid having a specific osmotic pressure different to the osmotic pressure of blood to completely break up the leukocytes. Also provided is a method of diagnosing multiple sclerosis characterized in that the human medullasin content of a blood sample is measured using an immunoassay, and the onset of multiple sclerosis and the extent of the disease is diagnosed according to the size of, or changes in, this measured value.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: July 25, 2006
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Hideaki Suzuki, Kiyoshi Takahashi, Hisashi Katsuragi, Yosuke Aoki
  • Patent number: 7070924
    Abstract: A method for detecting cell death, which comprises determining cytochrome C in body fluid and detecting cell death based on a quantified value, as well as a method for determining cytochrome C in body fluid by a sandwich method and a reagent for measuring cytochrome C for determination cytochrome C in body fluid by a sandwich method, which comprises an antibody directed to cytochrome C as an ingredient.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: July 4, 2006
    Assignee: EISAI Co., Ltd.
    Inventors: Fumio Endo, Naoto Adachi, Hiroyuki Nunoi, Keisuke Watanabe
  • Patent number: 7070941
    Abstract: The invention provides methods and compositions for azide tagging of biomolecules. In one embodiment of the invention, proteins are tagged by metabolic incorporation of prenylated azido-analog substrates. Examples of such analogs are azido farnesyl diphosphate and azido farnesyl alcohol. The azido moiety in the resulting modified proteins provides an affinity tag, which can be chemoselectively captured by an azide-specific conjugation reaction, such as the Staudinger reaction, using a phosphine capture reagent. When the capture agent is biotinylated, the resulting conjugates can be detected and affinity-purified by streptavidin-linked- HRP and streptavidin-conjugated agarose beads, respectively. The invention allows detection and isolation of proteins with high yield, high specificity, and low contamination without harsh treatment of proteins.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: July 4, 2006
    Assignee: Board of Regents, The University of Texas System
    Inventors: Yingming Zhao, John R. Falck
  • Patent number: 7060505
    Abstract: An assay device and method are provided which allow the determination of the presence or absence of at least one analyte in a test sample, while providing specific identification of the test subject. The assay device includes a reaction medium having at least one reaction zone and at least one control zone, which is capable of providing a pattern suitable for identifying the test subject. The pattern suitable for identifying the test subject is preferably a fingerprint. In a preferred embodiment of the invention, the reaction zone and the control zone include at least one member of a ligand/receptor pair.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: June 13, 2006
    Assignee: La Mina, Inc.
    Inventor: Raouf Guirguis
  • Patent number: 7060801
    Abstract: The present invention relates to huXAG-1, huXAG-2 and huXAG-3 proteins which are novel human growth factors. In particular, isolated nucleic acid molecules are provided encoding the huXAG-1, huXAG-2 and huXAG-3 proteins. huXAG-1, huXAG-2 and huXAG-3 polypeptides are also provided as are vectors, host cells and recombinant methods for producing the same. The invention further relates to screening methods for identifying agonists and antagonists of huXAG-1, huXAG-2 or huXAG-3 activity. Also provided are diagnostic and therapeutic uses of huXAG-1. huXAG-2 and huXAG-3.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: June 13, 2006
    Assignee: Human Genome Sciences, Inc.
    Inventors: Guo-Liang Yu, Patrick J. Dillon, Reinhard Ebner, Gregory A. Endress
  • Patent number: 7045310
    Abstract: Novel bipyridyl-osmium complex conjugates and their use in electrochemical assays are described. The redox reversible-osmium complexes can be prepared to exhibit unique reversible redox potentials and can thus be used in combination with other electroactive redox reversible species having redox potentials differing by at least 50 millivolts in electrochemical assays designed for use of multiple electroactive species in the same cell and in the same sample without interference between the two or more redox coupled conjugate systems.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: May 16, 2006
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Harvey B. Buck, Jr., Zhi David Deng, Eric R. Diebold
  • Patent number: 7029867
    Abstract: By allowing serum or plasma samples collected from humans to react with laminin-1 or a fragment thereof, and then determining whether or not anti-laminin-1 antibody, an auto-antibody against laminin-1, in the sample bound to laminin-1 to detect anti-laminin-1 antibody in the sample, gynecology-related diseases such as habitual abortion, sterility, infertility, and endometriosis can be diagnosed.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: April 18, 2006
    Inventors: Eiji Matsuura, Junko Inagaki, Koji Aoki
  • Patent number: 7015005
    Abstract: The present invention relates to novel methods and devices for detecting non-complexed prostate specific antigen (PSA), which can be used either alone or in conjunction with total PSA tests to identify patients having either benign prostatic diseases (BPD), such as benign prostatic hyperplasia, prostatitis, or glandular atrophy or prostatic adenocarcinoma (CAP). In a biological sample, one can find not only non-complexed PSA, but also PSA which has formed a complex with ?1-antichymotrypsin (ACT). The present invention removes or precipitates complexed PSA (PSA-ACT) and ACT from a fluid sample, thereby removing any possible interference due to the binding of complexed PSA to assay reagents.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: March 21, 2006
    Assignee: Scantibodies Laboratory, Inc.
    Inventor: Thomas L. Cantor
  • Patent number: 7001775
    Abstract: A method and kit for screening a sample of body fluid for at least one autoantibody to at least one antigen. A source of at least one antigen to the autoantibody is provided. A substrate having immobilized thereto at least one antibody to the antigen is also provided. The antigen source is contacted with the sample of body fluid, so as to obtain a mixture wherein the antigen is allowed to substantially bind with the autoantibody, when the latter is present in the sample of body fluid. The mixture is allowed to flow relative to the substrate so as to allow the mixture to contact the antibody immobilized to the substrate. Labeling means are provided to permit monitoring of binding of the autoanitbody and the antigen present in the mixture, so as to provide an indication of the presence of the autoanitbody in the sample of body fluid.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: February 21, 2006
    Assignee: RSR Limited
    Inventors: Peter John Burne, Bernard Rees Smith
  • Patent number: 6998246
    Abstract: The invention concerns a method for the detection of an analyte in a sample using analyte-specific conjugates which have at least one heterologous group for an analyte-independent binding to a control zone. The present invention additionally provides new conjugates and reagent kits.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: February 14, 2006
    Assignee: Roche Diagnostics Corporation
    Inventors: Jürgen Schäffler, Barbara Upmeier
  • Patent number: 6998242
    Abstract: A method of diagnosing metabolic bone diseases, especially osteoporosis and arthrosis characterized by determining the concentration of osteoclastgenesis inhibitory factor (OCIF) in humor. Monoclonal antibodies recognizing equally both of monomer type and dimer type of OCIF. Monoclonal antibodies recognizing selectively dimer type of OCIF. And to provide an assay kit for determination of OCIF concentration comprising the aforementioned two antibodies recognizing different epitope of OCIF and having high affinity showing dissociation constant of less than 2×10?7 M with antigen. It is useful for a method of diagnosing metabolic bone diseases, especially osteoporosis and arthrosis or for an assay reagent for research thereof.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: February 14, 2006
    Assignee: Sankyo Co., Ltd.
    Inventors: Kazuki Yano, Fumie Kobayashi, Masaaki Goto, Naohiro Washida, Eisuke Tsuda, Kaoji Higashio, Yoshiji Yamada
  • Patent number: 6995018
    Abstract: The invention provides methods and compositions for exploiting the discovery that members of the small integrin-binding ligand, n-linked glycoproteins family termed SIBLINGS bind to complement Factor H, and moreover that SIBLINGS proteins, such as BSP, exist in relatively acidic forms. The methods provided can be used to detect SIBLINGS proteins in samples from subjects that are suspected of having tumors or abnormal bone turnover. The invention also provides methods of using SIBLINGS proteins to protect cells from complement mediated lysis. Finally, the discovery allows for the creation of specific binding agents that facilitate the detection of SIBLINGS proteins when they are associated with Factor H.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: February 7, 2006
    Assignee: The United States of America as represented by the Secretary of the Department of Health and Human Services
    Inventors: Larry W. Fisher, Neal S. Fedarko, Marian F. Young
  • Patent number: 6991909
    Abstract: A novel protein, enkurin, that is preferentially expressed in sperm has been discovered. Enkurin binds to TRPCs including TRPC2-S, a protein encoded by TRPC2 that is not predicted to be a calcium channel subunit. The invention includes methods of identifying compounds that affect enkurin expression or activity, and are useful, e.g., for contraception and treatment of infertility.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: January 31, 2006
    Assignee: University of Massachusetts
    Inventors: Harvey Florman, Melissa Jungnickel, Keith Sutton
  • Patent number: 6986995
    Abstract: The present invention provides a method of diagnosing the presence or severity of liver fibrosis in an individual by detecting ?2-macroglobulin (?2-MG) in a sample from the individual; detecting hyaluronic acid (HA) in a sample from the individual; detecting tissue inhibitor of metalloproteinases-1 (TIMP-1) in a sample from the individual; and diagnosing the presence or severity of liver fibrosis in the individual based on the presence or level of ?2-MG, HA and TIMP-1.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: January 17, 2006
    Assignee: Prometheus Laboratories, Inc.
    Inventors: Steven L. Rose, Esther H. Oh, Michael J. Walsh
  • Patent number: 6969605
    Abstract: A hand held, self-contained, automatic, low power and rapid sensor platform for detecting and quantifying a plurality of analytes. A sample solution potentially containing an unknown amount of an analyte is passed through an affinity column which contains antibodies to which the analyte binds thereby extracting the analyte. The affinity column is then rinsed to remove any other chemicals that may fluoresce. The rinsed affinity column is then eluted with a known volume of elution fluid causing the analyte to release from the antibody and dissolve in the fluid (eluant). The eluant is then placed in the quartz cuvette of a fluorometer. The analyte suspended in the eluant fluoresces at a waveband which is different than that of the light source that excites it. The amount of fluorescence is measured and the level of analyte determined.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: November 29, 2005
    Assignee: The Johns Hopkins University
    Inventors: Charles W. Anderson, C. Brent Bargeron, Richard C. Benson, Micah A. Carlson, Allan B. Fraser, John D. Groopman, Harvey W. Ko, David R. Kohler, Terry E. Phillips, Paul T. Strickland
  • Patent number: 6951760
    Abstract: The invention relates to a method for detection of an analyte in a test sample by a specific binding reaction among the analyte, a specific binding partner for the analyte, and an (immuno)reactant provided with a label, characterized in that the label is a lanthanide ion-ligand complex wherein the lanthanide ion is neodymium(III) ion (Nd3+), ytterbium(III) ion (Yb3+), or erbium(III) ion (Er3+) and the ligand comprises or is in contact with a sensitizing moiety which absorbs in the 400-1000 nm region, and preferably in the 400-800 nm region.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: October 4, 2005
    Inventor: Johannes Willem Hofstraat
  • Patent number: 6951763
    Abstract: Methods of detecting antibodies to one or more glycosphingolipid(s) of interest in a sample are disclosed which comprise using a solid-phase reactant having carbonyl groups attached theron, and the glycosphingolipid(s) of interest linked to the solid-phase reactant by an amide bond between an amino group of the glycosphingolipid of interest and a carbonyl group attached to the solid-phase reactant. The methods of detecting antibodies to glycosphingolipid(s) of interest can be used in methods of diagnosing autoimmune diseases in an individual.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: October 4, 2005
    Assignee: Athena Diagnostics, Inc.
    Inventors: Normand J. Robichaud, Louis P. Kertiles
  • Patent number: 6951716
    Abstract: Immunoassay methods and apparatus are provided which utilize flow cytometry, coated latex microspheres, and fluorochrome labeled antibodies, to simultaneously detect the presence and amount of one or more analytes in a sample. Beads of several different sizes, colors or shapes, each bead are coated with a different analyte, for the simultaneous detection of one or more analytes and of cell components. The invention is also directed to platelet Ig positive control reagents and assays which provide for the setting of the fluorescence positive region for each patient. The platelet control is sized to fit between the platelets and red cells and thus making it ideal as a true biological control.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: October 4, 2005
    Inventor: Mark Hechinger
  • Patent number: 6939681
    Abstract: The invention relates to a method of evaluating the immunological status of a subject comprising the steps of 1) determining the content of an antibody in a liquid sample from the subject using an immunoassay, wherein the reaction between the antibody of the sample and a ligand in the form of an antigen, an antibody or a hapten, the ligand being directed to the Fab region of the sample antibody, is carried out in the presence of other constituents of the sample to obtain a measurement 1, 2) determining the content of an antibody in the liquid sample using an immunoassay, wherein the reaction between the antibody of the sample and a ligand in the form of an antigen, an antibody or a hapten, the ligand being directed to the Fab region of the sample antibody, is carried out in the absence of other constituents of the sample to obtain a measurement 2, and 3) interrelating measurements 1 and 2 to express the interference and using the interference as a parameter for evaluating the immunological status of the subje
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: September 6, 2005
    Assignee: Alk-Abello A/S
    Inventors: Hans-Henrik Ipsen, Niels Johansen, Rikke Morkeberg, Soren Bogestrand, Tine Charlotte Beck
  • Patent number: 6939720
    Abstract: A method for the multiplexed diagnostic and genetic analysis of enzymes, DNA fragments, antibodies, and other biomolecules comprises the steps of constructing an appropriately labeled beadset, exposing the beadset to a clinical sample, and analyzing the combined sample/beadset by flow cytometry. Flow cytometric measurements are used to classify, in real-time, beads within an exposed beadset and textual explanations, based on the accumulated data obtained during real-time analysis, are generated for the user. The inventive technology enables the simultaneous, and automated, detection and interpretation of multiple biomolecules or DNA sequences in real-time while also reducing the cost of performing diagnostic and genetic assays.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: September 6, 2005
    Assignee: Luminex Corporation
    Inventors: Van S. Chandler, R. Jerrold Fulton, Mark B. Chandler
  • Patent number: 6939677
    Abstract: A polypeptide has the antibody binding activity of the 46 Kdalton HMFG differentiation antigen and/or homology to at least one of the light chains of clotting factors V and VIII and is also provided as a fusion protein with a second antigenic polypeptide. An antibody has affinity for the polypeptide of the invention or a functional fragment thereof in vivo and in vitro methods for therapy vaccination and detecting the presence of the polypeptide, the antibody, the DNA and RNA of the invention are provided. DNA and RNA sequences encode the polypeptide of the invention or fragments thereof and immunoassay kits comprise the antibodies and/or polypeptides of the invention.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 6, 2005
    Assignee: Cancer Research Fund of Contra Costa
    Inventors: Roberto Luis Ceriani, Jerry Arthur Peterson, David James Larocca
  • Patent number: RE39457
    Abstract: A biological fluid collection container comprising a cup member, a lid assembly removably mounted to the cup member comprising a housing with a downwardly extending cylindrical skirt, a luer lock with a throughgoing bore extending from one side of the lid housing. A hollow tube extends from the other side of the lid housing adjacent the luer lock and is axially aligned with the throughgoing bore of the luer lock. The hollow tube is provided with a plurality of throughgoing holes leading into its lumen along its surface to provide for a sampling along various liquid level layers of the biological fluid specimen collected in the cup member so that when the biological fluid specimen is removed from the cup member a representative sampling is obtained.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: January 2, 2007
    Assignee: LaMina, Inc.
    Inventor: Raouf A. Guirguis