Patents by Inventor Longqin Hu

Longqin Hu 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: 11628221
    Abstract: The present disclosure is directed to a series of target-selective chemotherapeutic ester prodrugs comprising PSA-cleavable peptides that promote the delivery of free doxorubicin and other chemotherapeutic agents into the prostate and/or prostate tumors with greater efficiency.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: April 18, 2023
    Assignee: Rutgers, The State University of New Jersey
    Inventors: Longqin Hu, Herve Aloysius
  • Publication number: 20230043330
    Abstract: This document discloses novel cystine analogs, methods of making cystine analogs, compositions containing cystine analogs and methods of using such analogs for inhibiting cystine stone formation and treatment of cystinuria.
    Type: Application
    Filed: December 11, 2020
    Publication date: February 9, 2023
    Applicant: Rutgers, The State University of New Jersey
    Inventors: Longqin Hu, Haifa Albanyan
  • Publication number: 20230002337
    Abstract: Cystine analogs that improve the solubility of L-cystine in urine for treatment of cystinuria and which have the structure: and pharmaceutically acceptable salts, solvates and prodrugs thereof, wherein each R and R? pair are independently selected from (i) or (ii); (i) R and R? are independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alcohol, substituted or unsubstituted aryl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocyclic, and substituted or unsubstituted heteroaryl, or (ii) R and R? together form a substituted or unsubstituted heterocyclic ring structure, or a substituted or unsubstituted heteroaryl ring structure; X is hydrogen, or an alkyl; and Y is O or S.
    Type: Application
    Filed: August 22, 2022
    Publication date: January 5, 2023
    Applicant: Rutgers, The State University of New Jersey
    Inventors: Longqin Hu, Amrik Sahota
  • Patent number: 11420949
    Abstract: Cystine analogs that improve the solubility of L-cystine in urine for treatment of cystinuria and which have the structure: and pharmaceutically acceptable salts, solvates and prodrugs thereof, wherein each R and R? pair are independently selected from (i) or (ii); (i) R and R? are independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alcohol, substituted or unsubstituted aryl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocyclic, and substituted or unsubstituted heteroaryl, or (ii) R and R? together form a substituted or unsubstituted heterocyclic ring structure, or a substituted or unsubstituted heteroaryl ring structure; X is hydrogen, or an alkyl; and Y is O or S.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: August 23, 2022
    Assignee: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventor: Longqin Hu
  • Publication number: 20220112160
    Abstract: This patent document discloses novel compounds and methods of preventing or treating diseases or conditions related to Keap1-Nrf2 interaction activity by use of the novel compounds. As direct inhibitors of Keap1-Nrf2 interaction, the compounds disclosed herein are more specific and free of various undesirable effects than existing indirect inhibitors, and are potential dmg candidates of chemopreventive and therapeutic agents for treatment of various diseases or conditions involving oxidative stress and/or inflammation, including but not limited to cancers, diabetes, Alzheimer's, Parkinson's, and inflammatory bowel disease including ulcerative colitis.
    Type: Application
    Filed: January 16, 2020
    Publication date: April 14, 2022
    Applicant: Rutgers, The State University of New Jersey
    Inventors: Longqin Hu, Dhulfiqar A. Abed
  • Publication number: 20220088209
    Abstract: The present disclosure is directed to a series of target-selective chemotherapeutic ester prodrugs comprising PSA-cleavable peptides that promote the delivery of free doxorubicin and other chemotherapeutic agents into the prostate and/or prostate tumors with greater efficiency.
    Type: Application
    Filed: September 21, 2021
    Publication date: March 24, 2022
    Inventors: Longqin HU, Herve ALOYSIUS
  • Patent number: 11129901
    Abstract: The present disclosure is directed to a series of target-selective chemotherapeutic ester prodrugs comprising PSA-cleavable peptides that promote the delivery of free doxorubicin and other chemotherapeutic agents into the prostate and/or prostate tumors with greater efficiency.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: September 28, 2021
    Assignee: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Longqin Hu, Herve Aloysius
  • Publication number: 20210024477
    Abstract: Cystine analogs that improve the solubility of L-cystine in urine for treatment of cystinuria and which have the structure: and pharmaceutically acceptable salts, solvates and prodrugs thereof, wherein each R and R? pair are independently selected from (i) or (ii); (i) R and R? are independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alcohol, substituted or unsubstituted aryl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocyclic, and substituted or unsubstituted heteroaryl, or (ii) R and R? together form a substituted or unsubstituted heterocyclic ring structure, or a substituted or unsubstituted heteroaryl ring structure; X is hydrogen, or an alkyl; and Y is O or S.
    Type: Application
    Filed: October 12, 2020
    Publication date: January 28, 2021
    Applicant: Rutgers, The State University of New Jersey
    Inventor: Longqin Hu
  • Patent number: 10836737
    Abstract: Cystine analogs that improve the solubility of L-cystine in urine for treatment of cystinuria and which have the structure: and pharmaceutically acceptable salts, solvates and prodrugs thereof, wherein each R and R? pair are independently selected from (i) or (ii); (i) R and R? are independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alcohol, substituted or unsubstituted aryl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocyclic, and substituted or unsubstituted heteroaryl, or (ii) R and R? together form a substituted or unsubstituted heterocyclic ring structure, or a substituted or unsubstituted heteroaryl ring structure; X is hydrogen, or an alkyl; and Y is O or S.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: November 17, 2020
    Assignee: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Longqin Hu, Amrik Sahota
  • Publication number: 20190358337
    Abstract: The present disclosure is directed to a series of target-selective chemotherapeutic ester prodrugs comprising PSA-cleavable peptides that promote the delivery of free doxorubicin and other chemotherapeutic agents into the prostate and/or prostate tumors with greater efficiency.
    Type: Application
    Filed: February 2, 2018
    Publication date: November 28, 2019
    Inventors: Longqin HU, Herve ALOYSIUS
  • Patent number: 10106502
    Abstract: A method of identifying compounds as direct inhibitors of Keap1-Nrf2 interaction through high-throughput screening and lead development. The direct inhibitors of Keap1-Nrf2 interaction are more specific and free of various undesirable effects than existing indirect inhibitors, and are potential drug candidates of chemopreventive and therapeutic agents for treatment of various diseases or conditions involving oxidative stress and/or inflammation, including but not limited to cancers, diabetes, Alzheimer's, and Parkinson's. Novel compounds are identified and methods of preventing or treating diseases or conditions related to Keap1-Nrf2 interaction activity by use of the novel compounds identified or compositions containing such compounds are also disclosed.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: October 23, 2018
    Assignees: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY, THE BROAD INSTITUTE, INC.
    Inventors: Longqin Hu, Sadagopan Magesh, Lin Chen, Timothy Lewis, Ben Munoz, Lili Wang
  • Publication number: 20180148408
    Abstract: A method of identifying compounds as direct inhibitors of Keap1-Nrf2 interaction through high-throughput screening and lead development. The direct inhibitors of Keap1-Nrf2 interaction are more specific and free of various undesirable effects than existing indirect inhibitors, and are potential drug candidates of chemopreventive and therapeutic agents for treatment of various diseases or conditions involving oxidative stress and/or inflammation, including but not limited to cancers, diabetes, Alzheimer's, and Parkinson's. Novel compounds are identified and methods of preventing or treating diseases or conditions related to Keap1-Nrf2 interaction activity by use of the novel compounds identified or compositions containing such compounds are also disclosed.
    Type: Application
    Filed: September 28, 2017
    Publication date: May 31, 2018
    Inventors: Longqin Hu, Sadagopan Magesh, Lin Chen, Timothy Lewis, Ben Munoz, Lili Wang
  • Publication number: 20160362386
    Abstract: Cystine analogs that improve the solubility of L-cystine in urine for treatment of cystinuria and which have the structure: and pharmaceutically acceptable salts, solvates and prodrugs thereof, wherein each R and R? pair are independently selected from (i) or (ii); (i) R and R? are independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alcohol, substituted or unsubstituted aryl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocyclic, and substituted or unsubstituted heteroaryl, or (ii) R and R? together form a substituted or unsubstituted heterocyclic ring structure, or a substituted or unsubstituted heteroaryl ring structure; X is hydrogen, or an alkyl; and Y is O or S.
    Type: Application
    Filed: August 26, 2016
    Publication date: December 15, 2016
    Inventors: Longqin Hu, Amrik Sahota
  • Patent number: 9428453
    Abstract: Cystine analogs that improve the solubility of L-cystine in urine for treatment of cystinuria and which have the structure: and pharmaceutically acceptable salts, solvates and prodrugs thereof, wherein each R and R? pair are independently selected from (i) or (ii); (i) R and R? are independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alcohol, substituted or unsubstituted aryl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocyclic, and substituted or unsubstituted heteroaryl, or (ii) R and R? together form a substituted or unsubstituted heterocyclic ring structure, or a substituted or unsubstituted heteroaryl ring structure; X is hydrogen, or an alkyl; and Y is O or S.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: August 30, 2016
    Assignee: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Longqin Hu, Amrik Sahota
  • Patent number: 9075070
    Abstract: Disclosed are methods and kits for identifying modulators of the Keap1-Nrf2-ARE pathway. In particular, a high throughput fluorescent polarization assay is described that identifies small molecules that inhibit the binding of a fluorescently labeled Nrf2 peptide with the kelch domain of the Keap1 protein. Also provided are probes that can be used in the described fluorescent polarization assay. The small molecules identified using the described assay are useful for combating oxidative stress-related disorders, such as those associated with cancer, emphysema, Huntington's disease, light-induced retinal damage, and stroke.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: July 7, 2015
    Assignee: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Longqin Hu, Daigo Inoyama
  • Publication number: 20140256767
    Abstract: A method of identifying compounds as direct inhibitors of Keap1-Nrf2 interaction through high-throughput screening and lead development. The direct inhibitors of Keap1-Nrf2 interaction are more specific and free of various undesirable effects than existing indirect inhibitors, and are potential drug candidates of chemopreventive and therapeutic agents for treatment of various diseases or conditions involving oxidative stress and/or inflammation, including but not limited to cancers, diabetes, Alzheimer's, and Parkinson's. Novel compounds are identified and methods of preventing or treating diseases or conditions related to Keap1-Nrf2 interaction activity by use of the novel compounds identified or compositions containing such compounds are also disclosed.
    Type: Application
    Filed: October 31, 2012
    Publication date: September 11, 2014
    Applicants: THE BROAD INSTITUTE, INC., RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Longqin Hu, Sadagopan Magesh, Lin Chen, Timothy Lewis, Ben Munoz, Lili Wang
  • Publication number: 20140187546
    Abstract: Cystine analogs that improve the solubility of L-cystine in urine for treatment of cystinuria and which have the structure: and pharmaceutically acceptable salts, solvates and prodrugs thereof, wherein each R and R? pair are independently selected from (i) or (ii); (i) R and R? are independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alcohol, substituted or unsubstituted aryl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocyclic, and substituted or unsubstituted heteroaryl, or (ii) R and R? together form a substituted or unsubstituted heterocyclic ring structure, or a substituted or unsubstituted heteroaryl ring structure; X is hydrogen, or an alkyl; and Y is O or S.
    Type: Application
    Filed: January 2, 2014
    Publication date: July 3, 2014
    Applicant: Rutgers, The State University of New Jersey
    Inventors: Longqin Hu, Amrik Sahota
  • Patent number: 8518891
    Abstract: Chemotherapeutic conjugates of a peptide substrate to a phosphoramide chemotherapeutic agent in which a peptide substrate is covalently linked to the chemotherapeutic agent by a linker with an aminoarylmethyl or aminoheteroaryl moiety, wherein the linking of the peptide to the chemotherapeutic agent inhibits the cytotoxic activity of the chemotherapeutic agent, the peptide is a substrate for proteolytic cleavage by a tumor-specific enzyme; and the linker is capable of undergoing 1,6-elimination in vivo upon cleavage of the peptide substrate. Methods for synthesizing and methods of using the conjugates are also disclosed.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: August 27, 2013
    Inventors: Longqin Hu, Xinghua Wu
  • Publication number: 20120322768
    Abstract: Provided are compounds, compositions and methods for treating protozoan infections.
    Type: Application
    Filed: November 24, 2010
    Publication date: December 20, 2012
    Applicants: QUEEN MARY & WESTFIELD COLLEGE, RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Longqin Hu, Shane R. Wilkinson, Xinghua Wu, Belinda S. Hall
  • Publication number: 20120202298
    Abstract: Disclosed are methods and kits for identifying modulators of the Keap1-Nrf2-ARE pathway. In particular, a high throughput fluorescent polarization assay is described that identifies small molecules that inhibit the binding of a fluorescently labeled Nrf2 peptide with the kelch domain of the Keap1 protein. Also provided are probes that can be used in the described fluorescent polarization assay. The small molecules identified using the described assay are useful for combating oxidative stress-related disorders, such as those associated with cancer, emphysema, Huntington's disease, light-induced retinal damage, and stroke.
    Type: Application
    Filed: February 9, 2012
    Publication date: August 9, 2012
    Applicant: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Longqin Hu, Daigo Inoyama