Patents Assigned to Expression Pathology, Inc.
  • Patent number: 9869680
    Abstract: The current disclosure provides for specific peptides, and derived ionization characteristics of the peptides, from the Receptor Tyrosine-Protein Kinase erbB-3, or Her3 , that are particularly advantageous for quantifying the Her3 protein directly in biological samples that have been fixed in formalin by the method of Selected Reaction Monitoring (SRM) mass spectrometry, or what can also be termed as Multiple Reaction Monitoring (MRM) mass spectrometry. Such biological samples are chemically preserved and fixed wherein said biological sample is selected from tissues and cells treated with formaldehyde containing agents/fixatives including formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and tissue culture cells that have been formalin fixed and or paraffin embedded.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: January 16, 2018
    Assignee: Expression Pathology, Inc.
    Inventors: David Krizman, Todd Hembrough, Sheeno Thyparambil
  • Patent number: 9840728
    Abstract: The current disclosure provides for specific peptides, and derived ionization characteristics of the peptides, from the ALK, Ros, Ron, Ret, TS, and/or FGFR1 proteins that are particularly advantageous for quantifying the ALK, Ros, Ron, Ret, TS, and/or FGFR1 proteins directly in biological samples that have been fixed in formalin by the methods of Selected Reaction Monitoring (SRM) mass spectrometry, or as Multiple Reaction Monitoring (MRM) mass spectrometry. Such biological samples are chemically preserved and fixed wherein the biological sample is selected from tissues and cells treated with formaldehyde containing agents/fixatives including formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and tissue culture cells that have been formalin fixed and or paraffin embedded.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: December 12, 2017
    Assignee: Expression Pathology, Inc.
    Inventors: David B. Krizman, Todd Hembrough, Sheeno Thyparambil, Wei-Li Liao
  • Patent number: 9804164
    Abstract: Specific peptides, and derived ionization characteristics of the peptides, from the Fatty acid synthase (FASN) protein are provided that are particularly advantageous for quantifying the FASN protein directly in biological samples that have been fixed in formalin by the method of Selected Reaction Monitoring (SRM) mass spectrometry, or what can also be termed as Multiple Reaction Monitoring (MRM) mass spectrometry. Such biological samples are chemically preserved and fixed and are selected from tissues and cells treated with formaldehyde containing agents/fixatives including formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and tissue culture cells that have been formalin fixed and or paraffin embedded.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: October 31, 2017
    Assignee: Expression Pathology, Inc.
    Inventors: David B. Krizman, Todd Hembrough, Sheeno Thyparambil, Wei-Li Liao
  • Patent number: 9804169
    Abstract: Specific peptides, and derived ionization characteristics of those peptides from Death Receptor 5 (DR5) protein are provided that are particularly advantageous for quantifying the DR5 protein directly in biological samples that have been fixed in formalin by the method of Selected Reaction Monitoring/Multiple Reaction Monitoring (SRM/MRM) mass spectrometry. Such biological samples are chemically preserved and fixed wherein the biological sample is selected from tissues and cells treated with formaldehyde containing agents/fixatives including formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and tissue culture cells that have been formalin fixed and or paraffin embedded.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: October 31, 2017
    Assignee: Expression Pathology, Inc.
    Inventors: David Krizman, Todd Hembrough, Sheeno Thyparambil, Wei-Li Liao
  • Patent number: 9766246
    Abstract: The current disclosure provides for specific peptides, and derived ionization characteristics of the peptides, from the KRT5, KRT7, NapsinA, TTF1, TP63, and/or MUC1 proteins that are particularly advantageous for quantifying the KRT5, KRT7, NapsinA, TTF1, TP63, and/or MUC1 proteins directly in biological samples that have been fixed in formalin by the method of Selected Reaction Monitoring (SRM) mass spectrometry, or what can also be termed as Multiple Reaction Monitoring (MRM) mass spectrometry. Such biological samples are chemically preserved and fixed wherein said biological sample is selected from tissues and cells treated with formaldehyde containing agents/fixatives including formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and tissue culture cells that have been formalin fixed and or paraffin embedded.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: September 19, 2017
    Assignee: Expression Pathology, Inc.
    Inventors: David B. Krizman, Wei-Li Liao, Sheeno Thyparambil, Todd Hembrough
  • Patent number: 9765380
    Abstract: This disclosure provides ten (10) specific peptides, and particular peptide characteristics, from the cell membrane-bound Her2 protein and a diagnostic assay useful for determining the presence and amount of full length and truncated versions of the full-length Her2 protein in cells derived from formalin fixed paraffin embedded tissue.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: September 19, 2017
    Assignee: Expression Pathology, Inc.
    Inventor: David Krizman
  • Patent number: 9746477
    Abstract: Improved methods are provided for treating cancer patients, particularly patients suffering from lung cancer. Methods are provided for identifying whether a lung tumor will be responsive to treatment with a therapeutic regimen that includes pemetrexed and optionally includes cisplatin. A specific FR-? fragment peptide and a specific GART fragment peptide are precisely detected and quantitated by SRM-mass spectrometry directly in lung tumor cells collected from lung tumor tissue that was obtained from a cancer patient and compared to reference levels in order to determine if the lung cancer patient will positively respond to treatment with the c therapeutic regimen.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: August 29, 2017
    Assignees: Expression Pathology, Inc., West Virginia University
    Inventors: Todd Hembrough, Fabiola Cecchi, Eunkyung An, Manish Monga
  • Patent number: 9733253
    Abstract: The current disclosure provides for specific peptides from the Secreted Protein Acidic and Rich in Cysteine (SPARC) protein and the derived ionization characteristics of those peptides that are advantageous for quantifying the SPARC directly in formalin fixed biological samples by the method of Selected Reaction Monitoring (SRM) mass spectrometry. Such fixed biological samples include: formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and formalin fixed and paraffin embedded tissue culture cells. SPARC protein is quantitated in biological samples by the method of SRM/MRM mass spectrometry by quantitating one or more of the peptides described herein. The peptides can be quantitated if they reside in a modified or an unmodified form. Examples of potentially modified forms of an SPARC peptides include those bearing phosphorylation of a tyrosine, threonine, serine, and/or other amino acid residues within the peptide sequence.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 15, 2017
    Assignee: Expression Pathology, Inc.
    Inventors: David B. Krizman, Todd Hembrough, Sheeno Thyparambil
  • Patent number: 9470687
    Abstract: The current disclosure provides for specific peptides, and derived ionization characteristics of the peptides, from the KRT5, KRT7, NapsinA, TTF1, TP63, and/or MUC1 proteins that are particularly advantageous for quantifying the KRT5, KRT7, NapsinA, TTF1, TP63, and/or MUC1 proteins directly in biological samples that have been fixed in formalin by the method of Selected Reaction Monitoring (SRM) mass spectrometry, or what can also be termed as Multiple Reaction Monitoring (MRM) mass spectrometry. Such biological samples are chemically preserved and fixed wherein said biological sample is selected from tissues and cells treated with formaldehyde containing agents/fixatives including formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and tissue culture cells that have been formalin fixed and or paraffin embedded.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: October 18, 2016
    Assignee: Expression Pathology, Inc.
    Inventors: David B. Krizman, Wei-Li Liao, Sheeno Thyparambil, Todd Hembrough
  • Patent number: 9255934
    Abstract: Specific peptides, and derived ionization characteristics of the peptides, from the Insulin Receptor protein (IR), and its isoforms IR-A and IR-B, that are particularly advantageous for quantifying the IR protein, IR-A isoform and/or IR-B isoform, directly in biological samples that have been fixed in formalin by the method of Selected Reaction Monitoring (SRM) mass spectrometry, or what can also be termed as Multiple Reaction Monitoring (MRM) mass spectrometry. Such biological samples are chemically preserved and fixed and are selected from tissues and cells treated with formaldehyde containing agents/fixatives including formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and tissue culture cells that have been formalin fixed and or paraffin embedded.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: February 9, 2016
    Assignee: Expression Pathology, Inc.
    Inventors: David B. Krizman, Wei-Li Liao, Sheeno Thyparambil, Todd Hembrough
  • Publication number: 20150369818
    Abstract: The current disclosure provides for specific peptides, and derived ionization characteristics of the peptides, from the Receptor Tyrosine-Protein Kinase erbB-3, or Her3, that are particularly advantageous for quantifying the Her3 protein directly in biological samples that have been fixed in formalin by the method of Selected Reaction Monitoring (SRM) mass spectrometry, or what can also be termed as Multiple Reaction Monitoring (MRM) mass spectrometry. Such biological samples are chemically preserved and fixed wherein said biological sample is selected from tissues and cells treated with formaldehyde containing agents/fixatives including formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and tissue culture cells that have been formalin fixed and or paraffin embedded.
    Type: Application
    Filed: September 8, 2015
    Publication date: December 24, 2015
    Applicant: Expression Pathology, Inc.
    Inventors: David KRIZMAN, Todd Hembrough, Sheeno Thyparambil
  • Publication number: 20130302328
    Abstract: This disclosure provides ten (10) specific peptides, and particular peptide characteristics, from the cell membrane-bound Her2 protein and a diagnostic assay useful for determining the presence and amount of full length and truncated versions of the full-length Her2 protein in cells derived from formalin fixed paraffin embedded tissue.
    Type: Application
    Filed: December 8, 2011
    Publication date: November 14, 2013
    Applicant: Expression Pathology, Inc.
    Inventor: David Krizman
  • Publication number: 20130252840
    Abstract: The current invention provides a method for directly converting histopathologically processed biological samples, tissues, and cells into a multi-use biomolecule lysate. This method allows for simultaneous extraction, isolation, solublization, and storage of all biomolecules contained within the histopathologically processed biological sample, thereby forming a representative library of said sample. This multi-use biomolecule lysate is dilutable, soluble, capable of being fractionated, and used in any number of subsequent experiments.
    Type: Application
    Filed: May 17, 2013
    Publication date: September 26, 2013
    Applicant: Expression Pathology, Inc.
    Inventors: Marlene M. Darfler, David B. Krizman
  • Patent number: 8455215
    Abstract: The current invention provides a method for directly converting histopathologically processed biological samples, tissues, and cells into a multi-use biomolecule lysate. This method allows for simultaneous extraction, isolation, solubilization, and storage of all biomolecules contained within the histopathologically processed biological sample, thereby forming a representative library of said sample. This multi-use biomolecule lysate is dilutable, soluble, capable of being fractionated, and used in any number of subsequent experiments.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: June 4, 2013
    Assignee: Expression Pathology, Inc.
    Inventors: Marlene M. Darfler, David B. Krizman
  • Patent number: 8293485
    Abstract: The invention provides methods for multiplex analysis of biological samples of formalin-fixed tissue samples. The invention provides for a method to achieve a multiplexed, multi-staged plurality of Liquid Tissue preparations simultaneously from a single histopathologically processed biological sample, where the protocol for each Liquid Tissue preparation imparts a distinctive set of biochemical effects on biomolecules procured from histopathologically processed biological samples and which when each of the preparations is analyzed can render additive and complementary data about the same histopathologically processed biological sample.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: October 23, 2012
    Assignee: Expression Pathology, Inc.
    Inventors: David B. Krizman, Marlene M. Darfler
  • Patent number: 7906301
    Abstract: The invention provides methods for multiplex analysis of biological samples of formalin-fixed tissue samples. The invention provides for a method to achieve a multiplexed, multi-staged plurality of Liquid Tissue preparations simultaneously from a single histopathologically processed biological sample, where the protocol for each Liquid Tissue preparation imparts a distinctive set of biochemical effects on biomolecules procured from histopathologically processed biological samples and which when each of the preparations is analyzed can render additive and complementary data about the same histopathologically processed biological sample.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: March 15, 2011
    Assignee: Expression Pathology, Inc.
    Inventors: David B. Krizman, Marlene M. Darfler
  • Publication number: 20110028344
    Abstract: This patent application discloses and describes a list of proteins that are found to be differentially expressed between normal endometrial epithelial cells and early stage cancerous endometrial epithelial cells. These proteins can be used either individually or in specific combinations in diagnostic and prognostic protein assays on various biological samples from endometrial cancer patients, or individuals suspected on having endometrial cancer. In addition, these proteins are also differentially expressed between normal endometrial epithelial cells and epithelial cells of other types of endometrial disease, and thus such diseases can be diagnosed using assays based on these proteins. The full length intact proteins can be assayed or peptides derived from these proteins can be assayed as reporters for these proteins.
    Type: Application
    Filed: April 13, 2009
    Publication date: February 3, 2011
    Applicant: Expression Pathology, Inc.
    Inventors: David B. Krizman, Thomas G. Guiel
  • Patent number: 7473532
    Abstract: The current invention provides a method for directly converting histopathologically processed biological samples, tissues, and cells into a multi-use biomolecule lysate. This method allows for simultaneous extraction, isolation, solublization, and storage of all biomolecules contained within the histopathologically processed biological sample, thereby forming a representative library of said sample. This multi-use biomolecule lysate is dilutable, soluble, capable of being fractionated, and used in any number of subsequent experiments.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: January 6, 2009
    Assignee: Expression Pathology, Inc.
    Inventors: Marlene M. Darfler, David B. Krizman