George Mason University

Other

The United States of America, As Represented by the Secretary, Department of Health and Human Services

Center for Applied Proteomics and Molecular Medicine

Emanuel Petricoin

Lance A Liotta

Alessandra Luchini

Barney Bishop

Alexis Patanarut

Virginia Espina

David Geho

Julia Wulfkuhle

Francesco Meani

Claudia Fredolini

Thomas M Dunlap

Alessandra Luchini Kunkel

Mariaelena Pierobon

Arpita I Mehta

Elisa Baldelli

Lance Liotta

Caterina Longo

An embodiment relates to a method, comprising: obtaining a biological sample, performing a protein complex immunoprecipitation (Co-IP) on the sample, performing a reverse phase protein array (RPPA) on the sample after performing the protein complex immunoprecipitation, and identifying one or more protein complexes. A further embodiment relates to a method of treatment, comprising: obtaining a tissue sample from a patient, performing Co-IP then RPPA on the sample, identifying a protein complex, determining whether the protein complex comprises known protein drug targets, and treating the patient with a drug that interacts with the known protein drug targets.

Methods for discovering protein-protein interactions

Disclosed herein are methods for treating subjects with breast cancer, comprising determining a therapeutic regimen for cancer by measuring the level (amount) of proteins of one or more biomarkers. Also disclosed are methods of treating a subject with breast cancer by predicting or assessing a therapeutic outcome for subject.

Methods for breast cancer treatment

Disclosed herein are methods for treating subjects with breast cancer, comprising determining a therapeutic regimen for cancer by measuring the level (amount) of proteins of one or more biomarkers. Also disclosed are methods of predicting or assessing therapeutic outcome for subject.

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.

Method for harvesting nanoparticles and sequestering biomarkers

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. This device is useful for point of care diagnostic assays for biomedical applications and as field deployable assays for environmental, pathogen and chemical or biological threat identification.

Hydrogel nanoparticle based immunoassay

The current invention is a capture-particle comprising: a) a molecular sieve portion; and b) an analyte binding portion; wherein the molecular sieve portion, analyte binding portion or both further comprise a cross-linked region having modified porosity. Capture particles wherein the molecular sieve portion, analyte binding portion or both comprise pore dimensions sufficient to exclude molecules larger than about 60 kDa. These particles are useful in purification and diagnostic methods. Kits comprising the capture particles are also described.

Method of isolating analytes from a sample

Smart hydrogel particles for biomarker harvesting

A method for selecting combinations of drugs for treatment of diseases that arise from deranged signaling pathways is disclosed. The method involves measuring the activity states for signaling proteins in a diseased cell and determining whether the activity states are different from the activity states observed for a reference cell such as a normal cell. Based on the observed differences, combinations of two or more drugs are selected to reduce these differences. Treatment of a subject with the combinations restores the activity states of the signaling proteins of the deranged disease-associated signaling pathways toward the activity states observed in the reference cell. Since the diseased cell and the reference cell can both be obtained from the same subject, combinations of drugs that specifically target patient-specific signaling derangements is possible.

Combinatorial therapy for protein signaling diseases

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 may be 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 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. 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.

The present invention relates to compositions and methods for characterizing the physiological state of a living system, including cells, tissues, organs, and whole organisms. The methods involve capturing biomarkers from the living system, and correlating their presence or absence to a physiological state. The biomarkers can be captured from the system, and then detected using any suitable analytical system to determine their presence or absence. In one embodiment, the invention relates to a method of detecting a polypeptide biomarker in a blood serum or plasma sample obtained from a single subject with an affinity ligand which is capable of binding to a plurality of different polypeptide biomarkers derived from the same parental molecule.

Growing community of inventors

Gainesville, VA, United States of America

Emanuel Petricoin