Patents by Inventor Robert D. Ladner

Robert D. Ladner 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).

  • Publication number: 20180194740
    Abstract: Provided herein are dUTPase inhibitors, compositions comprising such compounds and methods of using such compounds and compositions.
    Type: Application
    Filed: July 7, 2016
    Publication date: July 12, 2018
    Inventors: Robert D. Ladner, Mark Spyvee, Pravin S. Shirude
  • Publication number: 20180155319
    Abstract: Provided herein are dUTPase inhibitors, compositions comprising such compounds and methods of using such compounds and compositions.
    Type: Application
    Filed: September 21, 2017
    Publication date: June 7, 2018
    Inventors: Robert D. Ladner, Bruno Giethlen
  • Publication number: 20180086746
    Abstract: Provided herein are dUTPase inhibitors, compositions comprising such compounds and methods of using such compounds and compositions in a method of treating cancer. The dUTPase inhibitors disclosed contain a uracil isostere in the molecule represented by a 2,6-diketopiperazine moiety. Thioanalogs of the uracil isostere where a thione replaces each of the ketone are also disclosed.
    Type: Application
    Filed: September 28, 2017
    Publication date: March 29, 2018
    Inventors: Robert D. Ladner, Bruno Giethlen
  • Patent number: 9809571
    Abstract: Provided herein are dUTPase inhibitors, compositions comprising such compounds and methods of using such compounds and compositions.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: November 7, 2017
    Assignee: University of Southern California
    Inventors: Robert D. Ladner, Bruno Giethlen
  • Patent number: 9790214
    Abstract: Provided herein are dUTPase inhibitors, compositions comprising such compounds and methods of using such compounds and compositions in a method of treating cancer. The dUTPase inhibitors disclosed contain a uracil isostere in the molecule represented by a 2,6-diketopiperazine moiety. Thioanalogs of the uracil isostere where a thione replaces each of the ketone are also disclosed.
    Type: Grant
    Filed: January 2, 2015
    Date of Patent: October 17, 2017
    Assignee: University of Southern California
    Inventors: Robert D. Ladner, Bruno Giethlen
  • Publication number: 20160326149
    Abstract: Provided herein are dUTPase inhibitors, compositions comprising such compounds and methods of using such compounds and compositions in a method of treating cancer. The dUTPase inhibitors disclosed contain a uracil isostere in the molecule represented by a 2,6-diketopiperazine moiety. Thioanalogs of the uracil isostere where a thione replaces each of the ketone are also disclosed.
    Type: Application
    Filed: January 2, 2015
    Publication date: November 10, 2016
    Inventors: Robert D. Ladner, Bruno Giethlen
  • Publication number: 20160039788
    Abstract: Provided herein are dUTPase inhibitors, compositions comprising such compounds and methods of using such compounds and compositions.
    Type: Application
    Filed: January 3, 2014
    Publication date: February 11, 2016
    Inventors: Robert D. Ladner, Bruno Giethlen
  • Patent number: 8815509
    Abstract: The inventors have developed a rapid and sensitive fluorescence-based assay to quantify dNTPs. This assay relies on the principle that incorporation of a limiting dNTP is required for primer-extension and polymerase-mediated 5-3? exonuclease hydrolysis of a quenched fluorophore-labeled probe resulting in fluorescence. The concentration of limiting dNTPs is directly proportional to the fluorescence generated. This assay has important applications in research that investigates the influence of pathological conditions or pharmacological agents on dNTP biosynthesis and regulation.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: August 26, 2014
    Assignee: University of Southern California
    Inventors: Peter M. Wilson, Robert D. Ladner
  • Publication number: 20130029331
    Abstract: The inventors have developed a rapid and sensitive fluorescence-based assay to quantify dNTPs. This assay relies on the principle that incorporation of a limiting dNTP is required for primer-extension and polymerase-mediated 5-3? exonuclease hydrolysis of a quenched fluorophore-labeled probe resulting in fluorescence. The concentration of limiting dNTPs is directly proportional to the fluorescence generated. This assay has important applications in research that investigates the influence of pathological conditions or pharmacological agents on dNTP biosynthesis and regulation.
    Type: Application
    Filed: June 14, 2012
    Publication date: January 31, 2013
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Peter M. Wilson, Robert D. Ladner
  • Publication number: 20110212467
    Abstract: Evidence demonstrating that elevated expression of dUTPase protects breast cancer cells from the expansion of the intracellular uracil pool, translating to reduced growth inhibition following treatment with 5-FU is provided. The implementation of in silica drug development techniques to identify and develop small molecule inhibitors of dUTPase are reported. As 5-FU and the oral 5-FU pro-drug capecitabine remain central agents in the treatment of a variety of malignancies, the clinical utility of a small molecule inhibitor to dUTPase represents a viable strategy to improve the clinical efficacy of these mainstay chemotherapeutic agents.
    Type: Application
    Filed: August 27, 2009
    Publication date: September 1, 2011
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Robert D. Ladner, Nouri Neamati
  • Publication number: 20020081594
    Abstract: A screening and development of agents that target and disrupt DNA replication is provided. In particular, aberrant UT1 metabolism is provided as a mechanism of inducing cytotoxicity and/or cytostasis.
    Type: Application
    Filed: March 13, 2001
    Publication date: June 27, 2002
    Inventors: Robert D. Ladner, Salvatore J. Caradonna
  • Patent number: 5962246
    Abstract: The invention provides the DNA and amino acid sequence of dUTPase, an enzyme which is essential for life and which is increased during periods of cellular proliferation. The human form of the dUTPase enzyme has been found to have two isoforms, a nuclear and a mitochondrial isoform. Methods of determining the proliferation status of a cell, efficacy of antineoplastic compounds, and response to therapy with antineoplastic compounds, using cellular levels of dUTPase is disclosed. A kit containing the necessary reagents for the determination of dUTPase is also disclosed.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: October 5, 1999
    Assignee: The University of Medicine and Dentistry of New Jersey
    Inventors: Robert D. Ladner, Frank Lynch, Salvatore J. Caradonna