Patents by Inventor Samir Khleif
Samir Khleif 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).
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Publication number: 20250074905Abstract: Compounds of Formula Ia or Ib are described, where the various substituents are defined herein. The compounds can e modulate a property or effect of Akt3 in vitro or in vivo, and can also be used, individually or in combination with other agents, in the CN prevention or treatment of a variety of conditions. Methods for synthesizing the compounds are described. Pharmaceutical compositions and methods of using these compounds or compositions, individually or in combination with other agents or compositions, in the prevention or treatment of a variety of conditions are also described.Type: ApplicationFiled: November 4, 2022Publication date: March 6, 2025Inventors: Samir KHLEIF, MiKayel MKRTICHYAN, Malcolm MACCOSS
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Publication number: 20250051419Abstract: Isolated polypeptides are described, which are mutants of programmed death 1 ligand 2 (“PD-L2”) and can either activate or suppress immune cells through activating or suppressing programmed cell death protein 1 (“PD-1”). Also described are isolated polypeptides that block the activating or inhibitory site of PD-L2, thereby inhibiting or activating PD-1. Further described are pharmaceutical compositions including the polypeptides and methods of using the polypeptides.Type: ApplicationFiled: December 8, 2022Publication date: February 13, 2025Inventors: SAMIR KHLEIF, Mikayel MKRTICHYAN
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Patent number: 12209127Abstract: Antibodies and antigen binding fragments thereof are provided that immunospecifically bind to PD-1 and induce or promote an immune response that activates immune cell proliferation or activity. Contrary to the existing paradigm that PD-1 exclusively promotes a suppressive immune response, the disclosed antibodies and antigen binding fragments thereof, immunospecifically bind to PD-1 and cause an activating signal to be delivered to the immune cell that activates the immune cell rather than suppressing the immune cell. In one embodiment, the disclosed antibodies and antigen binding fragments thereof specifically bind to PD-1 expressed on immune cells. The binding of the disclosed antibodies and antigen binding fragments thereof to PD-1 on immune cells causes an activating signal to be transmitted into the immune cell, for example a signal that enhances or promotes cytokine production and/or activation of immune cell proliferation.Type: GrantFiled: September 22, 2023Date of Patent: January 28, 2025Assignee: AUGUSTA UNIVERSITY RESEARCH INSTITUTE, INC.Inventors: Samir Khleif, Mikayel Mkrtichyan
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Publication number: 20250009735Abstract: Compositions and methods of selectively activating Akt3 are provided.Type: ApplicationFiled: March 15, 2024Publication date: January 9, 2025Inventors: Samir Khleif, Mikayel Mkrtichyan
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Publication number: 20250002511Abstract: Compounds of Formula la, lb, Ic, Ila, lIb, lIc, Illa, Illb, IIIc, IVa, IVb, or IVc, or, are described, where the various substituents are defined herein. The compounds can modulate a property or effect of Akt3 in vitro or in vivo, and can also be used, individually or in combination with other agents, in the prevention or treatment of a variety of conditions. Methods for synthesizing the compounds are described. Pharmaceutical compositions and methods of using these compounds or compositions, individually or in combination with other agents or compositions, in the prevention or treatment of a variety of conditions are also described.Type: ApplicationFiled: November 4, 2022Publication date: January 2, 2025Inventors: Samir KHLEIF, Mikayel MKRTICHYAN, Malcolm MACCOSS
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Patent number: 12168687Abstract: Antibodies and antigen-binding fragments thereof that immunospecifically bind to PD-1, such as human or mouse PD-1, and are agonists of PD-1 and can induce or promote an immune response that activates immune cell proliferation or activity. Unlike the majority of known anti-PD-1 and anti-PD-L1 antibodies, which reduce the suppression of PD-1 function by e.g., PD-L1 by physically blocking the interaction between PD-1 and an inactivating ligand, although not to be bound by theory, the disclosed antibodies and antigen-binding fragments thereof are currently best understood to immunospecifically bind to an epitope of PD-1 whereby PD-1 is activated directly. Methods for the treatment of cancer comprising administration of the antibodies or antigen-binding fragments to a subject in need thereof. Polynucleotides encoding the antibodies or antigen-binding fragments. Host cells comprising the polynucleotides.Type: GrantFiled: January 26, 2024Date of Patent: December 17, 2024Assignee: Georgiamune Inc.Inventors: Mikayel Mkrtichyan, Samir Khleif
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Publication number: 20240228457Abstract: Compounds of Formula Ia, Ib, or Ic, Formula (Ia); Formula (Ib); or Formula (Ic), are described, where the various substituents are defined herein. The compounds can modulate a property or effect of Akt3 in vitro or in vivo, and can also be used, individually or in combination with other agents, in the prevention or treatment of a variety of conditions. Methods for synthesizing the compounds are described. Pharmaceutical compositions and methods of using these compounds or compositions, individually or in combination with other agents or compositions, in the prevention or treatment of a variety of conditions are also described.Type: ApplicationFiled: May 7, 2021Publication date: July 11, 2024Inventors: Samir KHLEIF, Mikayel MKRTICHYAN, Malcolm MACCOSS
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Publication number: 20240182574Abstract: Antibodies and antigen-binding fragments thereof that immunospecifically bind to PD-1, such as human or mouse PD-1, and are agonists of PD-1 and can induce or promote an immune response that activates immune cell proliferation or activity. Unlike the majority of known anti-PD-1 and anti-PD-L1 antibodies, which reduce the suppression of PD-1 function by e.g., PD-L1 by physically blocking the interaction between PD-1 and an inactivating ligand, although not to be bound by theory, the disclosed antibodies and antigen-binding fragments thereof are currently best understood to immunospecifically bind to an epitope of PD-1 whereby PD-1 is activated directly. Methods for the treatment of cancer comprising administration of the antibodies or antigen-binding fragments to a subject in need thereof. Polynucleotides encoding the antibodies or antigen-binding fragments. Host cells comprising the polynucleotides.Type: ApplicationFiled: January 26, 2024Publication date: June 6, 2024Inventors: Mikayel MKRTICHYAN, Samir KHLEIF
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Patent number: 11957673Abstract: Compositions and methods of selectively activating Akt3 are provided.Type: GrantFiled: September 6, 2018Date of Patent: April 16, 2024Assignee: AUGUSTA UNIVERSITY RESEARCH INSTITUTE, INC.Inventors: Samir Khleif, Mikayel Mkrtichyan
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Publication number: 20240076379Abstract: Antibodies and antigen binding fragments thereof are provided that immunospecifically bind to PD-1, and induce or promote an immune response that activates immune cell proliferation or activity. Contrary to the existing paradigm that PD-1 exclusively promotes a suppressive immune response, the disclosed antibodies and antigen binding fragments thereof, immunospecifically bind to PD-1 and cause an activating signal to be delivered to the immune cell that activates the immune cell rather than suppressing the immune cell. In one embodiment, the disclosed antibodies and antigen binding fragments thereof specifically bind to PD-1 expressed on immune cells. The binding of the disclosed antibodies and antigen binding fragments thereof to PD-1 on immune cells causes an activating signal to be transmitted into the immune cell, for example a signal that enhances or promotes cytokine production and/or activation of immune cell proliferation.Type: ApplicationFiled: September 22, 2023Publication date: March 7, 2024Inventors: Samir Khleif, Mikayel Mkrtichyan
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Patent number: 11780921Abstract: Antibodies and antigen binding fragments thereof are provided that immunospecifically bind to PD-1, preferably human or mouse PD-1, and induce or promote an immune response that activates immune cell proliferation or activity. Contrary to the existing paradigm that PD-1 exclusively promotes a suppressive immune response, the disclosed antibodies and antigen binding fragments thereof, immunospecifically bind to PD-1 and cause an activating signal to be delivered to the immune cell that activates the immune cell rather than suppressing the immune cell. In one embodiment, the disclosed antibodies and antigen binding fragments thereof specifically bind to PD-1 expressed on immune cells. The binding of the disclosed antibodies and antigen binding fragments thereof to PD-1 on immune cells causes an activating signal to be transmitted into the immune cell, for example a signal that enhances or promotes cytokine production and/or activation of immune cell proliferation.Type: GrantFiled: March 23, 2021Date of Patent: October 10, 2023Assignee: AUGUSTA UNIVERSITY RESEARCH INSTITUTE, INC.Inventors: Samir Khleif, Mikayel Mkrtichyan
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Publication number: 20230295114Abstract: Compounds of Formula la, lb, or Ic,, are described, where the various substituents are defined herein. The compounds can modulate a property or effect of Akt3 in vitro or in vivo, and can also be used, individually or in combination with other agents, in the prevention or treatment of a variety of conditions. Methods for synthesizing the compounds are described. Pharmaceutical compositions and methods of using these compounds or compositions, individually or in combination with other agents or compositions, in the prevention or treatment of a variety of conditions are also described.Type: ApplicationFiled: May 7, 2021Publication date: September 21, 2023Inventors: Samir KHLEIF, Mikayel MKRTICHYAN, Malcolm MACCOSS
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Publication number: 20230219927Abstract: Compounds of Formula 1a, 1b, or Ic, (Ia); (Ib); or (Ic), are described, where the various substituents are defined herein. The compounds can modulate a property or effect of Akt3 in vitro or in vivo, and can also be used, individually or in combination with other agents, in the prevention or treatment of a variety of conditions. Methods for synthesizing the compounds are described. Pharmaceutical compositions and methods of using these compounds or compositions, individually or in combination with other agents or compositions, in the prevention or treatment of a variety of conditions are also described.Type: ApplicationFiled: May 7, 2021Publication date: July 13, 2023Inventors: Samir KHLEIF, Mikayel MKRTICHYAN, Malcolm MACCOSS
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Publication number: 20230181563Abstract: Compositions and methods of modulating Akt3 are disclosed herein. Also disclosed are methods of their use to treat or prevent various diseases. Activators and inhibitors of Akt3 are disclosed for use in treating and preventing various diseases.Type: ApplicationFiled: May 7, 2021Publication date: June 15, 2023Inventors: Samir KHLEIF, Mikayel MKRTICHYAN
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Publication number: 20230183226Abstract: Compounds of Formula la, lb, or Ic, are described, where the various substituents are defined herein. The compounds can modulate a property or effect of Akt3 in vitro or in vivo, and can also be used, individually or in combination with other agents, in the prevention or treatment of a variety of conditions. Methods for synthesizing the compounds are described. Pharmaceutical compositions and methods of using these compounds or compositions, individually or in combination with other agents or compositions, in the prevention or treatment of a variety of conditions are also described.Type: ApplicationFiled: May 7, 2021Publication date: June 15, 2023Inventors: Samir KHLEIF, Mikayel MKRTICHYAN, Malcolm MACCOSS
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Publication number: 20220135681Abstract: Antibodies and antigen binding fragments thereof are provided that immunospecifically bind to PD-1, preferably human or mouse PD-1, and induce or promote an immune response that activates immune cell proliferation or activity. Contrary to the existing paradigm that PD-1 exclusively promotes a suppressive immune response, the disclosed antibodies and antigen binding fragments thereof, immunospecifically bind to PD-1 and cause an activating signal to be delivered to the immune cell that activates the immune cell rather than suppressing the immune cell. In one embodiment, the disclosed antibodies and antigen binding fragments thereof specifically bind to PD-1 expressed on immune cells. The binding of the disclosed antibodies and antigen binding fragments thereof to PD-1 on immune cells causes an activating signal to be transmitted into the immune cell, for example a signal that enhances or promotes cytokine production and/or activation of immune cell proliferation.Type: ApplicationFiled: March 23, 2021Publication date: May 5, 2022Inventors: Samir KHLEIF, Mikayel MKRTICHYAN
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Publication number: 20210348125Abstract: Methods for inducing CD8+ T cells to express a CD62LhiCD44lo naïve-like phenotype are provided. One embodiment provides a pharmaceutical composition containing CD8+ T cells induced to express a CD62LhiCD44lo naïve-like phenotype and optionally an excipient. The CD8+ T cells can be induced by contacting them with an effective amount of a MEK1/2 inhibitor. An exemplary MEK1/2 inhibitor is Selumetinib. The induced CD8+ cells can be used to treat cancer, reduce tumor burden, or treat infections in a subject in need thereof.Type: ApplicationFiled: July 19, 2021Publication date: November 11, 2021Inventors: Samir Khleif, Vivek Verma
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Patent number: 11021540Abstract: Antibodies and antigen binding fragments thereof are provided that immunospecifically bind to PD-1, preferably human or mouse PD-1, and induce or promote an immune response that activates immune cell proliferation or activity. Contrary to the existing paradigm that PD-1 exclusively promotes a suppressive immune response, the disclosed antibodies and antigen binding fragments thereof, immunospecifically bind to PD-1 and cause an activating signal to be delivered to the immune cell that activates the immune cell rather than suppressing the immune cell. In one embodiment, the disclosed antibodies and antigen binding fragments thereof specifically bind to PD-1 expressed on immune cells. The binding of the disclosed antibodies and antigen binding fragments thereof to PD-1 on immune cells causes an activating signal to be transmitted into the immune cell, for example a signal that enhances or promotes cytokine production and/or activation of immune cell proliferation.Type: GrantFiled: September 7, 2018Date of Patent: June 1, 2021Assignee: AUGUSTA UNIVERSITY RESEARCH INSTITUTE, INC.Inventors: Samir Khleif, Mikayel Mkrtichyan
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Publication number: 20210113550Abstract: Compositions and methods of selectively activating Akt3 are provided.Type: ApplicationFiled: September 6, 2018Publication date: April 22, 2021Inventors: Samir KHLEIF, Mikayel MKRTICHYAN
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Publication number: 20210032341Abstract: Antibodies and antigen binding fragments thereof are provided that immunospecifically bind to PD-1, preferably human or mouse PD-1, and induce or promote an immune response that activates immune cell proliferation or activity. Contrary to the existing paradigm that PD-1 exclusively promotes a suppressive immune response, the disclosed antibodies and antigen binding fragments thereof, immunospecifically bind to PD-1 and cause an activating signal to be delivered to the immune cell that activates the immune cell rather than suppressing the immune cell. In one embodiment, the disclosed antibodies and antigen binding fragments thereof specifically bind to PD-1 expressed on immune cells. The binding of the disclosed antibodies and antigen binding fragments thereof to PD-1 on immune cells causes an activating signal to be transmitted into the immune cell, for example a signal that enhances or promotes cytokine production and/or activation of immune cell proliferation.Type: ApplicationFiled: September 7, 2018Publication date: February 4, 2021Inventors: Samir KHLEIF, Mikayel MKRTICHYAN