Patents by Inventor Virginia Espina

Virginia Espina has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8628931
    Abstract: This invention relates, e.g., to a method for predicting a subject's response to a chemotherapeutic agent and/or the subject's prognosis, comprising measuring the phosphorylation state of at least one member of the mTOR pathway, and/or of at least one member of an interconnected polypeptide pathway (e.g. a member of the Akt pathway or a member of the IRS pathway), compared to a baseline value, in a cancer tissue or cancer cell sample from the subject, wherein an elevated level of the phosphorylation state compared to the baseline value indicates that the subject is a non-responder to the chemotherapeutic agent and/or has a poor prognosis. Also described is a method for treating a cancer in a subject in need thereof, wherein the subject exhibits an elevated level of the phosphorylation state, comprising administering one or more inhibitors of the mTOR and/or an interconnected pathway.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: January 14, 2014
    Assignee: George Mason Intellectual Properties, Inc.
    Inventors: Lance A. Liotta, Emanuel F. Petricoin, III, Virginia Espina
  • Publication number: 20130345075
    Abstract: This invention relates, e.g., to a composition that, at room temperature, when contacted with a sample comprising phosphoproteins, can fix and stabilize cellular phosphoproteins, preserve cellular morphology, and allow the sample to be frozen to generate a cryostat frozen section suitable for molecular analysis. The composition comprises (1) a fixative that stabilizes the proteins in the sample and that has a sufficient water content for a stabilizer and/or a permeability enhancing agent to be soluble therein; (2) a stabilizer, comprising (a) a kinase inhibitor and (b) a phosphatase inhibitor and, optionally, (c) a protease (e.g., proteinase) inhibitor; (3) a permeability enhancing agent; and (4) lactic acid. Methods and kits are described for preserving phosphoproteins, using such a composition. Also described are endogenous surrogate markers for monitoring protein degradation, including the loss of posttranslational modifications (such as phosphorylation), e.g.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 26, 2013
    Inventors: Virginia A. Espina, Lance A. Liotta, David Geho
  • Patent number: 8497137
    Abstract: Capture particles for harvesting analytes from solution and methods for using them are described. The capture particles are made up of a polymeric matrix having pore size that allows for the analytes to enter the capture particles. The pore size of the capture particles are changeable upon application of a stimulus to the particles, allowing the pore size of the particles to be changed so that analytes of interest remain sequestered inside the particles. The polymeric matrix of the capture particles are made of co-polymeric materials having a structural monomer and an affinity monomer, the affinity monomer having properties that attract the analyte to the capture particle. The capture particles may be used to isolate and identify analytes present in a mixture. They may also be used to protect analytes which are typically subject to degradation upon harvesting and to concentrate low an analyte in low abundance in a fluid.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: July 30, 2013
    Inventors: Alessandra Luchini, Lance Liotta, Emanuel Petricoin, Barney Bishop, Caterina Longo, Virginia Espina, Alexis Patanarut
  • Patent number: 8460859
    Abstract: This invention relates, e.g., to a composition that, at room temperature, when contacted with a sample comprising phosphoproteins, can fix and stabilize cellular phosphoproteins, preserve cellular morphology, and allow the sample to be frozen to generate a cryostat frozen section suitable for molecular analysis. The composition comprises (1) a fixative that is effective to fix the phosphoproteins, and that has a sufficient water content to be soluble for a stabilizer and/or a permeability enhancing agent); (2) a stabilizer, comprising (a) a kinase inhibitor and (b) a phosphatase inhibitor and, optionally, (c) a protease (e.g., proteinase) inhibitor; and (3) a permeability enhancing agent (e.g. PEG). Methods are described for preserving phosphoproteins, using such a composition. Also described are endogenous surrogate markers for monitoring protein degradation, including the loss of posttranslational modifications (such as phosphorylation), e.g.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: June 11, 2013
    Assignee: George Mason Intellectual Properties, Inc.
    Inventors: Virginia A. Espina, Lance A. Liotta, David Geho
  • Publication number: 20130137094
    Abstract: The invention relates to a one-step chemical composition that preserves animal tissue, cells, and biomolecules, such as human tissue, human cells, and biomolecules therein. It improves the fidelity and morphologic structure of cells, organelles, and nuclear chromatin, and maintains and enhances the cellular antigenicity for immunohistochemistry and flow cytometry, while preserving proteins, post-translational modifications of proteins, and nucleic acids. In one embodiment, the composition comprises a) a non-aldehyde precipitating fixative at a concentration below 25% (volume/volume), b) a reversible/cleavable protein cross-linker that targets lipid-associated molecules, and c) a c reversible/cleavable protein cross-linker that targets water soluble molecules. In another embodiment, the composition further includes a kinase inhibitor, a phosphatase inhibitor, and a permeation enhancer.
    Type: Application
    Filed: January 25, 2011
    Publication date: May 30, 2013
    Applicant: GEORGE MASON INTELLECTUAL PROPERTIES, INC.
    Inventors: Virginia A. Espina, Lance A. Liotta, Claudius Mueller
  • Publication number: 20120164749
    Abstract: Capture particles for harvesting analytes from solution and methods for using them are described. The capture particles are made up of a polymeric matrix having pore size that allows for the analytes to enter the capture particles. The pore size of the capture particles are changeable upon application of a stimulus to the particles, allowing the pore size of the particles to be changed so that analytes of interest remain sequestered inside the particles. The polymeric matrix of the capture particles are made of co-polymeric materials having a structural monomer and an affinity monomer, the affinity monomer having properties that attract the analyte to the capture particle. The capture particles may be used to isolate and identify analytes present in a mixture. They may also be used to protect analytes which are typically subject to degradation upon harvesting and to concentrate low an analyte in low abundance in a fluid.
    Type: Application
    Filed: August 19, 2008
    Publication date: June 28, 2012
    Inventors: Alessandra Luchini, Lance Liotta, Emanuel Petricoin, Barney Bishop, Caterina Longo, Virginia Espina, Alexis Patanarut
  • Publication number: 20120107959
    Abstract: This invention describes the identification of novel organic dye chemistries that can be used as affinity baits to capture proteins and other biomolecules useful in the fields of medical diagnostics, environmental science, toxicology, and infectious disease. Incorporation of unique affinity dye compounds within hydrogel capture particles improves analyte yield and preanalytical precision, and stabilizes the analyte against degradation, while increasing measurement sensitivity. The particles in this invention can be used for routine clinical testing as well as for discovery of low abundance disease biomarkers. Example hydrogel particles containing new high affinity bait chemistries were used to identify a new set of human serum biomarkers.
    Type: Application
    Filed: June 21, 2010
    Publication date: May 3, 2012
    Inventors: Lance Liotta, Virginia Espina, Alessandra Luchini, Davide Tamburro
  • Publication number: 20120083422
    Abstract: Glioblastoma multiforme biomarkers, methods, and compositions are provided. Methods of selecting a treatment for a patient with a brain neoplasm, including Glioblastoma multiforme, are provided. Methods of treating a patient at risk for Glioblastoma multiforme are provided.
    Type: Application
    Filed: June 2, 2011
    Publication date: April 5, 2012
    Inventors: Claudius Mueller, Lance Liotta, Emanuel Petricoin, Virginia Espina
  • Publication number: 20120077843
    Abstract: Described herein are progenitor cancer cells and cell lines isolated from human breast ductal carcinoma in situ (DCIS) lesions and the uses of these cells or cell lines in drug design, drug screening, and monitoring in vivo therapy. The DCIS malignant precursor cells or cell lines are epithelial in origin, are positive for markers of autophagy, show at least one genetic difference from normal cells of said fragment, form 3-D tube-like structures or ball aggregates, or are inhibited in formation of 3-D structures and migration by treatment with chloroquine.
    Type: Application
    Filed: March 29, 2010
    Publication date: March 29, 2012
    Inventors: Lance A. Liotta, Virginia Espina, Rosa I. Gallagher, Kirsten Edmiston
  • Publication number: 20120076770
    Abstract: THE INVENTION RELATES TO compounds, proteins and methods of treatment therewith. Aspects of embodiments of the invention further relates to compounds and methods of treatment for bone, bone marrow, and bone tissue.
    Type: Application
    Filed: March 28, 2011
    Publication date: March 29, 2012
    Inventors: Virginia Espina, Lance Liotta, Antonella Chiechi, Alessandra Romano, Emanuel Petricoin, Amy Van Meter
  • Publication number: 20120065166
    Abstract: THE INVENTION RELATES TO compositions, compounds, proteins and methods of treatment therewith. Aspects of embodiments also relate to a method of treating a patient by delivering to the tissues of said patient or administering to said patient a therapeutically effective amount of one or more compounds. Aspects of embodiments also relate to a method of detecting the presence of bone disease by machine-assaying detectable serotonin. Aspects of embodiments also relate to methods of treating disease in subjects.
    Type: Application
    Filed: August 15, 2011
    Publication date: March 15, 2012
    Inventors: Virginia Espina, Lance Liotta, Antonella Chiechi, Alessandra Romano
  • Publication number: 20110250260
    Abstract: A method of treating or inhibiting progress of dementia and/or macular degeneration in a mammal involves administering compositions containing siRNA to heme oxygenase-1 (HO-1) or heme oxygenase-2 (HO-2), a matrix metalloproteinase (MMP) inhibitor, a caspase inhibitor, or a metalloporphyrinan in a manner that permits access to brain sites and/or the macula of the patient.
    Type: Application
    Filed: February 25, 2011
    Publication date: October 13, 2011
    Applicants: Loma Linda University Medical Center, The Regents of the University of California, The Research Foundation of State University of New York for and on behalf of State University of N.Y, George Mason University
    Inventors: Wolff Kirsch, Lance A. Liotta, William Van Nostrand, Harry V. Vinters, Virginia A. Espina
  • Publication number: 20110236999
    Abstract: An immunoassay device incorporating porous polymeric capture nanoparticles within either the sample collection vessel or pre-impregnated into a porous substratum within fluid flow path of the analytical device is presented. This incorporation of capture particles within the immunoassay device improves sensitivity while removing the requirement for pre-processing of samples prior to loading the immunoassay device. A preferred embodiment is coreshell bait containing capture nanoparticles which perform three functions in one step, in solution: a) molecular size sieving, b) target analyte sequestration and concentration, and c) protection from degradation. The polymeric matrix of the capture particles may be made of co-polymeric materials having a structural monomer and an affinity monomer, the affinity monomer having properties that attract the analyte to the capture particle.
    Type: Application
    Filed: August 26, 2009
    Publication date: September 29, 2011
    Inventors: Lance A. Liotta, Alessandra Luchini, Emaneul F. Petricoin, Virginia Espina
  • Publication number: 20110207627
    Abstract: Methods of selecting a treatment for a patient with multiple myeloma are provided. Prior to commencing a treatment regime, bone marrow aspirates are isolated from a patient and incubated with one or more candidate therapeutics. The methods identify the therapy or combination of therapies most likely to yield the best results for a particular individual. In addition to improving clinical outcome, such theranostic evaluations dramatically reduce health care costs, by avoiding ineffective therapies. Screening assays for identifying treatments for multiple myeloma also are provided.
    Type: Application
    Filed: August 12, 2009
    Publication date: August 25, 2011
    Inventors: Lance A. Liotta, Emanuel F. Petricoin, III, Virginia Espina
  • Publication number: 20110189173
    Abstract: The present invention provides reliable methods to identify subsets of subjects with a cancer of epithelial origin characterized by a high level of phosphorylated c-erbB2 which does not correlate with the over-expression of total c-erbB2 as measured by IHC or FISH, for selection and inclusion for c-erbB2-direct treatment and therapy. Furthermore, the present invention provides a reliable method to determine whether a subject with a cancer of epithelial origin who has been determined to be c-erbB2 positive by IHC and by FISH should be excluded from c-erbB2-direct treatment because of a non-significant level of phosphorylated c-erbB2 in epithelial tumor tissue.
    Type: Application
    Filed: July 8, 2009
    Publication date: August 4, 2011
    Applicant: George Mason Intellectual Properties, Inc.
    Inventors: Emanuel F. Petricoin, III, Lance A. Liotta, Virginia Espina, Julia D. Wulfkuhle
  • Publication number: 20110104065
    Abstract: Described herein are progenitor cancer cells and cell lines isolated from human breast ductal carcinoma in situ (DCIS) lesions and the uses of these cells or cell lines in drug design, drug screening, and monitoring in vivo therapy. The DCIS malignant precursor cells or cell lines are epithelial in origin, are positive for markers of autophagy, show at least one genetic difference from normal cells of said fragment, form 3-D tube-like structures or ball aggregates, or are inhibited in formation of 3-D structures and migration by treatment with chloroquine. In one embodiment, there is a loss of heterozygosity (LOH) that is narrowly confined to a region of chromosome 6p (6p21.1-6p12.3) that contains the SUPT3H gene.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 5, 2011
    Inventors: Virginia Espina, Lance Liotta
  • Publication number: 20110046039
    Abstract: The invention provides methods and materials for identifying agents for preventing and/or treating anthrax and similar diseases. Embodiments provide strains and model systems for studying non-lethal and lethal exposure to anthrax and similar disease vectors. Embodiments provide materials and methods for using the strains and model systems for differential profiling, such as proteomic profiling, such as differentiation phosphorylation profiling, to target identification and therapeutics discovery and development. Embodiments provide pharmaceutically acceptable compositions, and methods for using them to prevent and/or treat anthrax and similar diseases comprising an agent that decreases the activity of caspase ΒΌ, such as YVAD, and/or an agent that increases the phosphorylation of AKT, such as IB-MECA or Cl-IB-MECA, together with, in particular embodiments, an antibiotic, such as ciprofloxacin. Kits comprising the same are provided as well, among other things.
    Type: Application
    Filed: March 6, 2008
    Publication date: February 24, 2011
    Applicant: George Mason Intellectual Properties Inc.
    Inventors: Serguei G. Popov, Taissia Popov, Virginia Espina, Charles Bailey, Lance A. Liotta, Emanuel Petricoin
  • Publication number: 20100159486
    Abstract: Low molecular weight (LMW) peptides have been discovered that are indicative of neurological conditions, such as Alzheimer's Disease (AD), cognitive impairment and brain microhemmorhages. Evaluating patient samples for the presence of such LMW peptides is an effective means of detecting neurological conditions and monitoring the progression of the disease. The LMW peptides are particularly useful in detecting neurological conditions during the early stages without invasive procedures.
    Type: Application
    Filed: November 1, 2007
    Publication date: June 24, 2010
    Inventors: Lance A. Liotta, Wediong Zhou, Wolff Kirsch, Virginia Espina, Emanuel Petricoin, III, Mark Ross, Claudius Mueller, Shino Magaki
  • Publication number: 20100068690
    Abstract: This invention relates, e.g., to a composition that, at room temperature, when contacted with a sample comprising phosphoproteins, can fix and stabilize cellular phosphoproteins, preserve cellular morphology, and allow the sample to be frozen to generate a cryostat frozen section suitable for molecular analysis. The composition comprises (1) a fixative that is effective to fix the phosphoproteins, and that has a sufficient water content to be soluble for a stabilizer and/or a permeability enhancing agent); (2) a stabilizer, comprising (a) a kinase inhibitor and (b) a phosphatase inhibitor and, optionally, (c) a protease (e.g., proteinase) inhibitor; and (3) a permeability enhancing agent (e.g. PEG). Methods are described for preserving phosphoproteins, using such a composition. Also described are endogenous surrogate markers for monitoring protein degradation, including the loss of posttranslational modifications (such as phosphorylation), e.g.
    Type: Application
    Filed: October 26, 2007
    Publication date: March 18, 2010
    Applicant: George Mason Intellectual Properties, Inc.
    Inventors: Lance A. Liotta, Emmanuel F. Petricoin, III, David Geho, Virginia A. Espina
  • Publication number: 20100047336
    Abstract: A method of treating or inhibiting progress of dementia and/or macular degeneration in a mammal involves administering compositions containing siRNA to heme oxygenase-1 (HO-1) or heme oxygenase-2 (HO-2), a matrix metalloproteinase (MMP) inhibitor, a caspase inhibitor, or a metalloporphyrin in a manner that permits access to brain sites and/or the macula of the patient.
    Type: Application
    Filed: August 17, 2009
    Publication date: February 25, 2010
    Applicants: LOMA LINDA UNIVERSITY MEDICAL CENTER, GEORGE MASON UNIVERSITY, STONY BROOK UNIVERSITY, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Wolff Kirsch, Lance A. Liotta, William Van Nostrand, Harry V. Vinters, Virginia A. Espina