Patents by Inventor ZELIG A. ESHHAR

ZELIG A. ESHHAR 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: 20240139247
    Abstract: The present invention provides T-cells expressing at least two different chimeric antigen receptors, wherein one of the CARs binds specifically to CD138 and another CAR binds specifically to CD38. In particular, the present invention provides T-cells expressing two different CARs, when one CAR comprises anti-CD138 scFv and the second CAR anti-CD138 scFv. Further, the invention provides a pharmaceutical composition comprising these dual CAR T-cells and their use in treatment of cancer, in particular multiple myeloma, and methods for preparation of these cells.
    Type: Application
    Filed: January 9, 2024
    Publication date: May 2, 2024
    Inventors: Zelig ESHHAR, Tova WAKS, Anat GLOBERSON LEVIN, Moran RAWET SLOBODKIN
  • Patent number: 11944644
    Abstract: The present invention provides T-cells expressing at least two different chimeric antigen receptors, wherein one of the CARs binds specifically to CD138 and another CAR binds specifically to CD38. In particular, the present invention provides T-cells expressing two different CARs, when one CAR comprises anti-CD138 sc Fv and the second CAR anti-CD138 sc Fv. Further, the invention provides a pharmaceutical composition comprising these dual CAR T-cells and their use in treatment of cancer, in particular multiple myeloma, and methods for preparation of these cells.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: April 2, 2024
    Assignees: THE MEDICAL RESEARCH INFRASTRUCTURE AND HEALTH SERVICES FUND OF THE TEL AVIV MEDICAL CENTER, YEDA RESEARCH AND DEVELOPMENT CO. LTD
    Inventors: Zelig Eshhar, Tova Waks, Anat Globerson Levin, Moran Rawet Slobodkin
  • Patent number: 11932871
    Abstract: Methods of culturing T cells are provided. Accordingly there is provided a method of culturing T cells comprising culturing T cells in the presence of a T cell stimulator, an exogenous CCL21 and an exogenous ICAM1, thereby culturing the T cells. Also provided are cell cultures, isolated T cells and uses of same.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: March 19, 2024
    Assignees: YEDA RESEARCH AND DEVELOPMENT CO. LTD., THE MEDICAL RESEARCH, INFRASTRUCTURE AND HEALTH SERVICES FUND OF THE TEL AVIV MEDICAL CENTER
    Inventors: Benjamin Geiger, Nir Friedman, Shimrit Lieber, Zelig Eshhar, Tova Waks, Anat Globerson Levin
  • Publication number: 20230321235
    Abstract: A method of generating a population of genetically modified veto cells is disclosed. The method comprising: (a) providing a population of cells comprising T cells, the T cells comprising at least 40% memory CD8+ T cells; (b) culturing the population of cells comprising T cells with an antigen or antigens under conditions which allow enrichment of tolerance-inducing antigen-specific cells having a central memory T-lymphocyte (Tcm) phenotype, the cells being depleted of graft versus host (GVH) reactivity; and (c) transducing the cells with a polynucleotide encoding a heterologous cell surface receptor comprising a T cell receptor signaling module, thereby generating the population of genetically modified veto cells.
    Type: Application
    Filed: August 11, 2021
    Publication date: October 12, 2023
    Applicants: Yeda Research and Development Co. Ltd., Ichilov Tech Ltd.
    Inventors: Yair REISNER, Anat GLOBERSON LEVIN, Esther BACHAR-LUSTIG, Assaf LASK, Bar NATHANSOHN-LEVI, Tova WAKS, Galit HORN, Zelig ESHHAR
  • Publication number: 20230058044
    Abstract: The present invention discloses chimeric antigen receptors that specifically recognize and bind to SLe A carbohydrate antigen with high specificity and selectivity. The invention further provides lymphocytic cells, such as T cells, comprising said CARs, compositions comprising said cells or CARs as well as uses thereof.
    Type: Application
    Filed: November 25, 2020
    Publication date: February 23, 2023
    Inventors: Vered PADLER-KARAVANI, Yafit ATIYA-NASAGI, Ron AMON, Anat GLOBERSON LEVIN, Tova WAKS, Moran RAWET-SLOBODKIN, Lihi NINIO MANY, Zelig ESHHAR
  • Publication number: 20220204928
    Abstract: The present invention provides extracellular vesicles (EVs) derived from T-cells expressing chimeric antigen receptors (CAR) specifically activated with an antigen to which the CAR bind specifically, pharmaceutical compositions comprising these vesicles as well as their use in treating cancer. In particular the present invention exemplifies EVs derived from activated T-cells expressing CAR that bind specifically to HER2 cancer antigen, pharmaceutical composition comprising these EVs and their use in treating a cancer overexpressing HER2, such as ovarian cancer and breast cancer.
    Type: Application
    Filed: April 16, 2020
    Publication date: June 30, 2022
    Inventors: Anat AHARON, Anat GLOBERSON LEVIN, Irit AVIVI, Galit HORN, Tova WAKS, Zelig ESHHAR
  • Patent number: 11326147
    Abstract: A redirected Treg cell is endowed with specificity toward a selected target antigen or ligand. The cell contains a chimeric receptor polypeptide that is expressed in a single, continuous chain, with an extracellular recognition region displayed on the surface of the cell, a transmembrane region and an intracellular signaling region. The extracellular recognition region is specific for the selected target antigen or ligand. The intracellular signaling region includes a combination of T-cell signaling polypeptide moieties, which combination, upon binding of the extracellular recognition region to the selected target antigen or ligand, triggers activation of the redirected Treg cells to cause suppression of T-cell mediated immunity. Such redirected Treg cells may be used to suppress undesired activity of T effector cells thereby mediating an immune or inflammatory response.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: May 10, 2022
    Assignee: YEDA RESEARCH AND DEVELOPMENT CO. LTD.
    Inventors: Zelig Eshhar, Eran Elinav
  • Publication number: 20210300986
    Abstract: The present invention provides T-cells modified to express at least two chimeric antigen receptors, wherein one of the CARs binds specifically to an antigen selected from CD138, HER2 and CD24 and another CAR binds specifically a different antigen selected from CD138, HER2 and CD24. Further, the invention provides pharmaceutical compositions comprising these CAR T-cells and their use in treatment of cancer, in particular, ovarian cancer, DNA constructs encoding said CARs and methods for preparation of T-cells expressing said CARs.
    Type: Application
    Filed: December 4, 2018
    Publication date: September 30, 2021
    Inventors: Zelig ESHHAR, Tova WAKS, Anat GLOBERSON LEVIN, Naamit DESHET-UNGER, Moran REWET SLOBODKIN, Dan GRISARU, Ben Zion KATZ, Ido LASKOV
  • Publication number: 20200384024
    Abstract: The present invention provides T-cells expressing at least two different chimeric antigen receptors, wherein one of the CARs binds specifically to CD138 and another CAR binds specifically to CD38. In particular, the present invention provides T-cells expressing two different CARs, when one CAR comprises anti-CD138 sc Fv and the second CAR anti-CD138 sc Fv. Further, the invention provides a pharmaceutical composition comprising these dual CAR T-cells and their use in treatment of cancer, in particular multiple myeloma, and methods for preparation of these cells.
    Type: Application
    Filed: December 4, 2018
    Publication date: December 10, 2020
    Inventors: Zelig ESHHAR, Tova WAKS, Anat GLOBERSON LEVIN, Moran RAWET SLOBODKIN
  • Publication number: 20200215112
    Abstract: The present invention provides compositions and methods for improved T-cell therapy of cancer characterized by overexpression of Her2/neu oncogene. Provided are T cells capable of expressing or expressing chimeric antigen receptor (CAR) that specifically recognizes Her2/neu. These T cells have prolonged half-life in the blood circulation and enhanced cytotoxicity, and are used in treatment of a cancer characterized by overexpression of Her2/neu oncogene.
    Type: Application
    Filed: August 8, 2018
    Publication date: July 9, 2020
    Inventors: Debora Rosa BUBLIK, Zelig ESHHAR, Salomon STEMMER, Izhak HAVIV, Guy ALLON, Ido BACHELET, Yoav BEN YAACOV, Nadav COHEN
  • Publication number: 20200071669
    Abstract: Methods of culturing T cells are provided. Accordingly there is provided a method of culturing T cells comprising culturing T cells in the presence of a T cell stimulator, an exogenous CCL21 and an exogenous ICAM1, thereby culturing the T cells. Also provided are cell cultures, isolated T cells and uses of same.
    Type: Application
    Filed: March 2, 2018
    Publication date: March 5, 2020
    Applicants: Yeda Research and Development Co. Ltd., The Medical Research, Infrastructure and Health Services Fund of the Tel Aviv Medical Center
    Inventors: Benjamin GEIGER, Nir FRIEDMAN, Shimrit LIEBER, Zelig ESHHAR, Tova WAKS, An at GLOBERSON LEVIN
  • Publication number: 20200056152
    Abstract: A redirected Treg cell is endowed with specificity toward a selected target antigen or ligand. The cell contains a chimeric receptor polypeptide that is expressed in a single, continuous chain, with an extracellular recognition region displayed on the surface of the cell, a transmembrane region and an intracellular signaling region. The extracellular recognition region is specific for the selected target antigen or ligand. The intracellular signaling region includes a combination of T-cell signaling polypeptide moieties, which combination, upon binding of the extracellular recognition region to the selected target antigen or ligand, triggers activation of the redirected Treg cells to cause suppression of T-cell mediated immunity. Such redirected Treg cells may be used to suppress undesired activity of T effector cells thereby mediating an immune or inflammatory response.
    Type: Application
    Filed: March 22, 2019
    Publication date: February 20, 2020
    Inventors: Zelig Eshhar, Eran Elinav
  • Publication number: 20170216356
    Abstract: A method of treating a disease, such as cancer, by administering to a subject in need of such treatment an effective amount of allogeneic T cells with a MHC unrestricted chimeric receptor short time after partial lymphodepletion. The method also comprises administering one or more agents that delay egression of the allogeneic T cells from lymph nodes of said subject during adoptive transfer of said allogeneic T cells to the subject by trapping the T cells in the lymph nodes.
    Type: Application
    Filed: February 14, 2017
    Publication date: August 3, 2017
    Inventors: Zelig ESHHAR, Assaf MARCUS, Tova WAKS
  • Patent number: 9623049
    Abstract: A method of treating a disease, such as cancer, by administering to a subject in need of such treatment an effective amount of allogeneic T cells with a MHC unrestricted chimeric receptor short time after partial lymphodepletion. The method also comprises administering one or more agents that delay egression of the allogeneic T cells from lymph nodes of said subject during adoptive transfer of said allogeneic T cells to the subject by trapping the T cells in the lymph nodes.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: April 18, 2017
    Assignee: YEDA RESEARCH AND DEVELOPMENT CO. LTD.
    Inventors: Zelig Eshhar, Assaf Marcus, Tova Waks
  • Patent number: 9346854
    Abstract: Isolated peptides of 13-30 amino acids comprising 5-9 consecutive repeats of the amino acid pair Alanine-Leucine or Alanine-Valine are provided. The peptides further comprise a stretch of 1-3 Lysine residues present at least at one of the peptide's termini, wherein the only Lysine residue in the isolated peptide is present at the stretch of 1-3 Lysine residues. Pharmaceutical compositions comprising same, methods of treating inflammatory conditions and allergic reactions, as well as methods of neutralizing the activity of lypopolysaccharides are also provided.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: May 24, 2016
    Assignee: Yeda Research and Developement Co. Ltd.
    Inventors: Yechiel Shai, Avner Fink, Shay Yaari, Tova Waks, Zelig Eshhar, Christopher J. Arnush
  • Publication number: 20140336105
    Abstract: Anti-inflammatory peptides and pharmaceutical compositions including lysine, alanine, leucine and/or valine for treating inflammatory conditions and uses thereof. Anti-inflammatory peptides for treating IgE-mediated allergies and inflammatory conditions caused by a microbial infection including but not limited to sepsis.
    Type: Application
    Filed: July 3, 2014
    Publication date: November 13, 2014
    Inventors: Yechiel Shai, Avner Fink, Shay Yaari, Tova Waks, Zelig Eshhar, Christopher J. Arnush
  • Patent number: 8211422
    Abstract: Chimeric receptor genes suitable for endowing lymphocytes with antibody-type specificity include a first gene segment encoding a single-chain Fv domain of a specific antibody and a second gene segment encoding all or part of the transmembrane and cytoplasmic domains, and optionally the extracellular domain, of an immune cell-triggering molecule. The chimeric receptor gene, when transfected to immune cells, expresses the antibody-recognition site and the immune cell-triggering moiety into one continuous chain. The transformed lymphocytes are useful in therapeutic treatment methods.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: July 3, 2012
    Assignees: The United States of America, as represented by the Secretary, Department of Health and Human Services, Yeda Research and Development Co., Ltd.
    Inventors: Zelig Eshhar, Daniel Schindler, Tova Waks, Gideon Gross, Steven A. Rosenberg, Patrick Hwu
  • Publication number: 20120093842
    Abstract: Chimeric receptor genes suitable for endowing lymphocytes with antibody-type specificity include a first gene segment encoding a single-chain Fv domain of a specific antibody and a second gene segment encoding all or part of the transmembrane and cytoplasmic domains, and optionally the extracellular domain, of an immune cell-triggering molecule. The chimeric receptor gene, when transfected to immune cells, expresses the antibody-recognition site and the immune cell-triggering moiety into one continuous chain. The transformed lymphocytes are useful in therapeutic treatment methods.
    Type: Application
    Filed: October 26, 2011
    Publication date: April 19, 2012
    Applicants: The United States of America, as represented by the Secretary, Dept. of Health & Human Service, YEDA RESEARCH AND DEVELOPMENT CO., LTD.
    Inventors: Zelig Eshhar, Daniel Schindler, Tova Waks, Gideon Gross, Steven A. Rosenberg, Patrick Hwu
  • Patent number: 7741465
    Abstract: Chimeric receptor genes suitable for endowing lymphocytes with antibody-type specificity include a first gene segment encoding a single-chain Fv domain of a specific antibody and a second gene segment encoding all or part of the transmembrane and cytoplasmic domains, and optionally the extracellular domain, of an immune cell-triggering molecule. The chimeric receptor gene, when transfected to immune cells, expresses the antibody-recognition site and the immune cell-triggering moiety into one continuous chain. The transformed lymphocytes are useful in therapeutic treatment methods.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: June 22, 2010
    Inventors: Zelig Eshhar, Daniel Schindler, Tova Waks, Gideon Gross
  • Publication number: 20100135974
    Abstract: A redirected Treg cell is endowed with specificity toward a selected target antigen or ligand. The cell contains a chimeric receptor polypeptide that is expressed in a single, continuous chain, with an extracellular recognition region displayed on the surface of the cell, a transmembrane region and an intracellular signaling region. The extracellular recognition region is specific for the selected target antigen or ligand. The intracellular signaling region includes a combination of T-cell signaling polypeptide moieties, which combination, upon binding of the extracellular recognition region to the selected target antigen or ligand, triggers activation of the redirected Treg cells to cause suppression of T-cell mediated immunity. Such redirected Treg cells may be used to suppress undesired activity of T effector cells thereby mediating an immune or inflammatory response.
    Type: Application
    Filed: January 31, 2008
    Publication date: June 3, 2010
    Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.
    Inventors: Zelig Eshhar, Eran Elinav