Patents by Inventor Leaf Huang

Leaf Huang 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: 11911359
    Abstract: The present invention provides compositions and methods for stimulating an immune response using cationic lipids alone or in combination with antigens.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: February 27, 2024
    Assignee: PDS Biotechnology Corporation
    Inventors: Weihsu Chen, Weili Yan, Kenya Johnson, Gregory Conn, Frank Bedu-Addo, Leaf Huang
  • Publication number: 20230417751
    Abstract: Provided herein is a method and system for detecting kinase activity, comprising: providing one or more mutated kinases, wherein the one or more mutated kinases comprise a mutation that enlarges an ATP binding pocket of the kinase; contacting the one or more mutated kinases with an ATP or ADP analog-nanoparticle conjugate capable of intracellular delivery of the ATP or ADP analog-nanoparticle conjugate, wherein the ATP or ADP analog comprises a detectable label; assaying the one or more mutated kinases under conditions in which the ATP or ADP analog-nanoparticle conjugate contacts the one or more mutated kinases, wherein the one or more kinases react to transfer the detectable label to the substrate, wherein the ATP analog only fluoresces upon contact with the ATP binding pocket of the kinase.
    Type: Application
    Filed: May 24, 2023
    Publication date: December 28, 2023
    Inventors: Degeng Wang, Leaf Huang, Hongjun Liang, Weimin Gao
  • Patent number: 11801257
    Abstract: A composition and method for activating immune cells ex-vivo, or inducing an immune response in a subject including a composition comprising at least one chiral cationic lipid. The chiral cationic lipid in one embodiment comprises a nonsteroidal cationic lipid having a structure represented by formula (I); wherein in R1 is a quaternary ammonium group, Y1 is a space chosen from a hydrocarbon chain, an ester, a ketone, and a peptide, C* is a chiral carbon, R2 and R3 are independently chosen from a saturated fatty acid, an unsaturated fatty acid, an ester-linked hydrocarbon, phosphor-diesters, and combination thereof.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: October 31, 2023
    Assignee: PDS BIOTECHNOLOGY CORPORATION
    Inventors: Elizabeth Ann Vasievich, Weihsu Claire Chen, Kenya N. Toney Johnson, Gregory Conn, Frank Bedu-Addo, Leaf Huang
  • Publication number: 20220378936
    Abstract: Provided herein are methods and compositions for the delivery of a combination of oxiplatin and folinic acid to a cell, tissue, or physiological site. The compositions comprise delivery system complexes comprising liposomes encapsulating dihydrate(1,2-diaminocyclohexane)platinum(II)-folinic acid or delivery system complexes comprising a 5-fluorouracil active metabolite. Also provided herein are methods for the treatment of cancer, wherein the methods comprise administering the delivery system complexes comprising dihydrate(1,2-diaminocyclohexane)platinum(II)-folinic acid or delivery system complexes comprising a 5-fluorouracil active metabolite that have therapeutic activity against the cancer.
    Type: Application
    Filed: October 13, 2020
    Publication date: December 1, 2022
    Inventors: Leaf HUANG, Jianfeng GUO
  • Publication number: 20220364143
    Abstract: The present invention includes method and system for detecting kinase activity in vivo, comprising: providing a cell that comprises one or more mutated kinases, wherein the one or more mutated kinases comprise a mutation that enlarges an ATP binding pocket of the kinase; contacting the cell with an ATP analog-nanoparticle conjugate capable of intracellular delivery of the ATP analog-nanoparticle conjugate, wherein the ATP analog comprises a detectable label; culturing the cells under conditions in which the ATP analog-nanoparticle conjugate contacts the one or more mutated kinases in cellulo, wherein the detectable label is transferred from the ATP analog-nanoparticle conjugate to a substrate of the one or more mutated kinases, wherein the one or more kinases react to transfer the detectable label to the substrate.
    Type: Application
    Filed: May 11, 2022
    Publication date: November 17, 2022
    Inventors: Degeng Wang, Leaf Huang, Hongjun Liang, Fengqian Chen, Weimin Gao
  • Publication number: 20220211663
    Abstract: Disclosed are micellar formulations comprising a synergistic combination of quercetin and alantolactone and their use for treating a cancer, including microsatellite-stable colorectal cancer (CRC), which otherwise is resistant to immunotherapy. The combination of quercetin and alantolactone was found to induce synergistic immunogenic cell death (ICD) at synergistic ratiometric micellar loadings.
    Type: Application
    Filed: April 23, 2020
    Publication date: July 7, 2022
    Inventors: Leaf Huang, Jing Zhang, Limei Shen
  • Publication number: 20220193103
    Abstract: Disclosed are nanoemulsions comprising puerarin and methods of their use in treating cancer, including breast cancer and melanoma. The presently disclosed puerarin-containing nanoemulsions regulate the tumor microenvironment and importantly de-activate tumor associated fibroblasts (TAFs) rather than killing them. The presently disclosed methods can be used in combination with chemotherapy, e.g., polymer formulations of paclitaxel, or PD-L1 blockade therapy to treat cancer.
    Type: Application
    Filed: April 23, 2020
    Publication date: June 23, 2022
    Inventors: Leaf Huang, Huan Xu
  • Publication number: 20220168439
    Abstract: The subject matter described herein is directed to methods of modifying the micro-environment of a target cell or The methods comprise systemically administering to a subject a composition comprising a vector, wherein the vector comprises a construct for the expression of a trap in the target cell, wherein the trap is expressed in the target cell thereby modifying the micro-environment. Also described herein are methods of reducing metastasis of a cancer comprising, systemically administering to a subject suffering from the cancer, a composition comprising a vector, wherein the vector comprises a construct for the expression of a trap, wherein the trap is delivered to and then expressed in tissue susceptible to metastasis, wherein metastasis of the cancer to the tissue is reduced. Compositions for carrying out the methods are also described.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 2, 2022
    Inventors: Leaf Huang, Tyler GOODWIN, Rihe LIU, Lei MIAO
  • Publication number: 20220031650
    Abstract: The present invention provides compositions and methods for stimulating an immune response using cationic lipids alone or in combination with antigens.
    Type: Application
    Filed: July 22, 2021
    Publication date: February 3, 2022
    Inventors: Weihsu Chen, Weili Yan, Kenya Johnson, Gregory Conn, Frank Bedu-Addo, Leaf Huang
  • Patent number: 11219694
    Abstract: The subject matter described herein is directed to methods of modifying the micro-environment of a target cell or The methods comprise systemically administering to a subject a composition comprising a vector, wherein the vector comprises a construct for the expression of a trap in the target cell, wherein the trap is expressed in the target cell thereby modifiying the micro-environment. Also described herein are methods of reducing metastasis of a cancer comprising, systemically administering to a subject suffering from the cancer, a composition comprising a vector, wherein the vector comprises a construct for the expression of a trap, wherein the trap is delivered to and then expressed in tissue susceptible to metastasis, wherein metastasis of the cancer to the tissue is reduced. Compositions for carrying out the methods are also described.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: January 11, 2022
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Leaf Huang, Tyler Goodwin, Rihe Liu, Lei Miao
  • Publication number: 20210346333
    Abstract: The present invention provides compositions and methods for stimulating an immune response using cationic lipids alone or in combination with antiigens.
    Type: Application
    Filed: July 22, 2021
    Publication date: November 11, 2021
    Inventors: Weihsu Chen, Weili Yan, Kenya Johnson, Gregory Conn, Frank Bedu-Addo, Leaf Huang
  • Publication number: 20210308157
    Abstract: A composition and method for activating immune cells ex-vivo, or inducing an immune response in a subject including a composition comprising at least one chiral cationic lipid. The chiral cationic lipid in one embodiment comprises a nonsteroidal cationic lipid having a structure represented by formula (I); wherein in R1 is a quaternary ammonium group, Y1 is a space chosen from a hydrocarbon chain, an ester, a ketone, and a peptide, C* is a chiral carbon, R2 and R3 are independently chosen from a saturated fatty acid, an unsaturated fatty acid, an ester-linked hydrocarbon, phosphor-diesters, and combination thereof.
    Type: Application
    Filed: March 25, 2021
    Publication date: October 7, 2021
    Inventors: Elizabeth Ann Vasievich, Weihsu Claire Chen, Kenya N. Toney Johnson, Gregory Conn, Frank Bedu-Addo, Leaf Huang
  • Publication number: 20200330491
    Abstract: A composition and method for activating immune cells ex-vivo, or inducing an immune response in a subject including a composition comprising at least one chiral cationic lipid. The chiral cationic lipid in one embodiment comprises a nonsteroidal cationic lipid having a structure represented by formula (I); wherein in R1 is a quaternary ammonium group, Y1 is a space chosen from a hydrocarbon chain, an ester, a ketone, and a peptide, C* is a chiral carbon, R2 and R3 are independently chosen from a saturated fatty acid, an unsaturated fatty acid, an ester-linked hydrocarbon, phosphor-diesters, and combination thereof.
    Type: Application
    Filed: June 12, 2020
    Publication date: October 22, 2020
    Inventors: Elizabeth Ann Vasievich, Weihsu Claire Chen, Kenya N. Toney Johnson, Gregory Conn, Frank Bedu-Addo, Leaf Huang
  • Patent number: 10702541
    Abstract: A composition and method for activating immune cells ex-vivo, or inducing an immune response in a subject including a composition comprising at least one chiral cationic lipid. The chiral cationic lipid in one embodiment comprises a nonsteroidal cationic lipid having a structure represented by formula (I); wherein in R1 is a quaternary ammonium group, Y1 is a spacer chosen from a hydrocarbon chain, an ester, a ketone, and a peptide, C* is a chiral carbon, R2 and R3 are independently chosen from a saturated fatty acid, an unsaturated fatty acid, an ester-linked hydrocarbon, phosphor-diesters, and combinations thereof.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: July 7, 2020
    Assignee: PDS Biotechnology Corporation
    Inventors: Elizabeth Ann Vasievich, Weihsu Claire Chen, Kenya N. Toney Johnson, Gregory Conn, Frank Bedu-Addo, Leaf Huang
  • Patent number: 10639372
    Abstract: A medical nanoparticle includes a core, an outer lipid layer, an inner lipid layer, a photosensitizer, and a nucleic acid. The core includes a bio-degradable ionic precipitate (BIP). The inner lipid layer is between the core and the outer lipid layer. The photosensitizer is between the inner lipid layer and the outer lipid layer, and the nucleic acid is at the surface of the core.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: May 5, 2020
    Assignee: CHUNG YUAN CHRISTIAN UNIVERSITY
    Inventors: Leaf Huang, Yih-Chih Hsu, Gang Zheng, Chia-Hsien Yeh
  • Patent number: 10624852
    Abstract: Provided herein are methods and compositions for the delivery of bioactive compounds to a cell, tissue, or physiological site. The compositions comprise delivery system complexes comprising liposomes encapsulating a biodegradable ionic precipitate having incorporated therein a bioactive compound and delivery system complexes comprising a biodegradable ionic precipitate ionically bound to a surrounding lipid bilayer, wherein the biodegradable ionic precipitate comprises a bioactive compound. Also provided herein are methods for the treatment of a disease or an unwanted condition in a subject, wherein the methods comprise administering the delivery system complexes comprising bioactive compounds that have therapeutic activity against the disease or unwanted condition to the subject.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: April 21, 2020
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Leaf Huang, Jun Li
  • Publication number: 20190381184
    Abstract: The subject matter described herein is directed to methods of modifying the micro-environment of a target cell or The methods comprise systemically administering to a subject a composition comprising a vector, wherein the vector comprises a construct for the expression of a trap in the target cell, wherein the trap is expressed in the target cell thereby modifiying the micro-environment. Also described herein are methods of reducing metastasis of a cancer comprising, systemically administering to a subject suffering from the cancer, a composition comprising a vector, wherein the vector comprises a construct for the expression of a trap, wherein the trap is delivered to and then expressed in tissue susceptible to metastasis, wherein metastasis of the cancer to the tissue is reduced. Compositions for carrying out the methods are also described.
    Type: Application
    Filed: September 15, 2016
    Publication date: December 19, 2019
    Inventors: Leaf HUANG, Tyler GOODWIN, Rihe LIU, Lei MIAO
  • Patent number: 10426745
    Abstract: Provided herein are polymers comprising Metformin residues (“PolyMet”) as useful therapeutic agents, delivery vehicles and transfection agents for nucleotides. Also provided herein are methods for the treatment of a disease or an unwanted condition in a subject, wherein the methods comprise administering PolyMet as a therapeutic agent to combat the disease or condition. Also provided herein are methods for the treatment of a disease or an unwanted condition in a subject, wherein the methods comprise administering a therapeutic agent in a delivery vehicle that comprises PolyMet. Further provided herein are methods for making PolyMet.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: October 1, 2019
    Assignee: THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
    Inventors: Leaf Huang, Yi Zhao, Shutao Guo, Kai Shi
  • Publication number: 20190015330
    Abstract: Provided herein are methods and compositions for the delivery of bioactive compounds to a cell, tissue, or physiological site. The compositions comprise delivery system complexes comprising liposomes encapsulating a biodegradable ionic precipitate having incorporated therein a bioactive compound and delivery system complexes comprising a biodegradable ionic precipitate ionically bound to a surrounding lipid bilayer, wherein the biodegradable ionic precipitate comprises a bioactive compound. Also provided herein are methods for the treatment of a disease or an unwanted condition in a subject, wherein the methods comprise administering the delivery system complexes comprising bioactive compounds that have therapeutic activity against the disease or unwanted condition to the subject.
    Type: Application
    Filed: April 9, 2018
    Publication date: January 17, 2019
    Inventors: Leaf Huang, Jun Li
  • Patent number: 9937128
    Abstract: Provided herein are methods and compositions for the delivery of bioactive compounds to a cell, tissue, or physiological site. The compositions comprise delivery system complexes comprising liposomes encapsulating a biodegradable ionic precipitate having incorporated therein a bioactive compound and delivery system complexes comprising a biodegradable ionic precipitate ionically bound to a surrounding lipid bilayer, wherein the biodegradable ionic precipitate comprises a bioactive compound. Also provided herein are methods for the treatment of a disease or an unwanted condition in a subject, wherein the methods comprise administering the delivery system complexes comprising bioactive compounds that have therapeutic activity against the disease or unwanted condition to the subject.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: April 10, 2018
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Leaf Huang, Jun Li