Patents by Inventor Daniel Zagury

Daniel Zagury 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: 11957748
    Abstract: A method for preventing an infectious disease in a subject in need thereof. In particular the method includes the administration of a combination, pharmaceutical combination, medicament or kit-of-parts including a first part including a CD8 vaccine specific for at least one infectious disease-related antigen, optionally a second part including an interferon alpha blocking agent, and a third part including a type III interferon and/or an agent stimulating the production of type III interferon.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: April 16, 2024
    Assignee: 21 C Bio
    Inventor: Daniel Zagury
  • Publication number: 20230323299
    Abstract: Natural Treg (nTreg) can potentially suppress cell immune response. Consequently, these CD4+ CD25+ CD127low Foxp3+ T cells are used in adoptive therapy against autoimmune and GVH disease. One difficulty is the varying functional properties depending on the microenvironment that may cause the loss of their suppressive activity and promote TH17- induced inflammatory effects. By ex vivo transdetermination of CD31 TH0 cells, the inventors established and expanded a Foxp3 regulatory T cell population (CD31d-Treg cells) functionally committed to exert a permanent Ag-specific regulatory activity whichever the microenvironmental conditions are. By contrast to nTreg cells, CD31d-Treg cells do not express the IL1 Receptor whose activation is required for IL-17 production. Accordingly, the present invention relates to a population of CD31d-Treg cells functionally committed to exert a regulatory activity and their use for Treg-based adoptive therapy.
    Type: Application
    Filed: August 2, 2021
    Publication date: October 12, 2023
    Inventors: Hélène LE BUANEC, Daniel ZAGURY
  • Patent number: 11365392
    Abstract: The present invention relates to a method for ex vivo generating and expanding MHCII restricted CD4+ Foxp3+ regulatory T cells, and therapeutic uses thereof. The inventors here demonstrated the optimal conditions for inducing Foxp3 expression in naive CD3+ CD4+ TCR??+ MHCII restricted T following polyclonal or following antigen-specific activation. They also developed an experimental procedure to generate autologous CD8+ T cell lines functionally committed to lyse tumor-antigen specific FOXP3 expressing TCR??+ MHCII restricted T cells, pathogenic CD4+ T cells that favour tumor cell immune evasion. In particular, the present invention relates to a method for generating ex vivo MHCII restricted CD4+ Foxp3+ regulatory T cells having the following phenotype: CD3+ CD4+ Foxp3+.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: June 21, 2022
    Assignees: INSERM (INSTITUT NATIONAL DE LA SANTÉ ET DE LA RECHERCHE MÉDICALE), MEDECINE ET INNOVATION, UNIVERSITÉ PARIS DIDEROT—PARIS 7, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
    Inventors: Daniel Zagury, Helene Le Buanec, Sophie Duchez, Valerie Schiavon, Armand Bensussan
  • Publication number: 20220119766
    Abstract: The present invention relates to a method for ex vivo generating and expanding ?? Foxp3+ regulatory T cells, and therapeutic uses thereof. The inventors performed the induction of Foxp3+ expression in ex vivo human induced tumor-antigen specific CD4? TCR?? unrestricted T cells and the induction of autologous CD8-mediated T-cell responses against tumor-antigen specific FOXP3 expressing CD4+ TCR?? unrestricted T cells. The inventors developed a method to ex vivo generated and expanded antigen specific Foxp3 expressing CD3+ TCR??+ unrestricted T cells, committed to exclusively exert regulatory activity, whichever culture condition of stimulation is. In particular, the present invention relates to a method for generating ex vivo ?? Foxp3+ regulatory T cells having the following phenotype: CD3+ TCR??+ Foxp3+.
    Type: Application
    Filed: November 8, 2021
    Publication date: April 21, 2022
    Inventors: Daniel ZAGURY, Helene LE BUANEC, Sophie DUCHEZ, Valerie SCHIAVON, Armand BENSUSSAN
  • Publication number: 20220018835
    Abstract: Among regulatory T cells, natural regulatory T cells (nTregs) ensure the control of self-tolerance and are currently tested in clinical trials in autoimmune diseases and allogeneic hematopoietic stem cell transplantation. Here the inventors show that based on CD39/CD26 markers, the human nTreg population is comprised of 5 major cell subsets each representing a distinct state of maturation. Phenotypic and genetic characteristics of the subsets illustrate the structural parental maturation between subsets which further correlates with expression of regulatory factors. Importantly, the inventors also show that blood nTreg CD39/CD26 profile, remaining constant over a 2year period in healthy persons but varying between individuals, represents a novel biomarker for monitoring chronic diseases, as illustrated in their preliminary study on AI (dermatomyositis, rheumatoid arthritis and leukemias).
    Type: Application
    Filed: December 6, 2019
    Publication date: January 20, 2022
    Inventors: Daniel ZAGURY, Hélène LE BUANEC, Armand BENSUSSAN, Charles CASSIUS
  • Patent number: 11198851
    Abstract: The present invention relates to a method for ex vivo generating and expanding ?? Foxp3+ regulatory T cells, and therapeutic uses thereof. The inventors performed the induction of Foxp3+ expression in ex vivo human induced tumor-antigen specific CD4+ TCR?? unrestricted T cells and the induction of autologous CD8-mediated T-cell responses against tumor-antigen specific FOXP3 expressing CD4+ TCR?? unrestricted T cells. The inventors developed a method to ex vivo generated and expanded antigen specific Foxp3 expressing CD3+ TCR??+ unrestricted T cells, committed to exclusively exert regulatory activity, whichever culture condition of stimulation is. In particular, the present invention relates to a method for generating ex vivo ?? Foxp3+ regulatory T cells having the following phenotype: CD3+ TCR??+ Foxp3+.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: December 14, 2021
    Assignees: INSERM (INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERE MEDICALE), MEDECINE ET INNOVATION, UNIVERSITE DE PARIS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
    Inventors: Daniel Zagury, Helene Le Buanec, Sophie Duchez, Valerie Schiavon, Armand Bensussan
  • Publication number: 20210332127
    Abstract: A method for treating acquired immune deficiency syndrome (AIDS) in a subject in need thereof. In particular, the method includes the administration of a combination, a kit-of-parts, a composition or a pharmaceutical composition including an interferon-alpha (IFN-?) blocking agent, a type III interferon blocking agent, an antiretroviral (ART) agent and, optionally, an interferon-beta (IFN-?) blocking agent and/or a latency-reversing agent (LRA).
    Type: Application
    Filed: April 24, 2020
    Publication date: October 28, 2021
    Applicant: 21C Bio
    Inventor: Daniel ZAGURY
  • Publication number: 20210322538
    Abstract: A method for preventing an infectious disease in a subject in need thereof. In particular the method includes the administration of a combination, pharmaceutical combination, medicament or kit-of-parts including a first part including a CD8 vaccine specific for at least one infectious disease-related antigen, optionally a second part including an interferon alpha blocking agent, and a third part including a type III interferon and/or an agent stimulating the production of type III interferon.
    Type: Application
    Filed: June 28, 2021
    Publication date: October 21, 2021
    Applicant: 21C Bio
    Inventor: Daniel ZAGURY
  • Patent number: 11077185
    Abstract: In the present invention, the Applicant provides a novel method for preventing or treating an infectious disease in a subject in need thereof. In particular said method comprise the administration of a combination, pharmaceutical combination, medicament or kit-of-parts comprising a first part comprising a CD8 vaccine specific for at least one infectious disease-related antigen, optionally a second part comprising an interferon alpha blocking agent, and a third part comprising a type III interferon and/or an agent stimulating the production of type III interferon.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: August 3, 2021
    Assignee: 21C Bio
    Inventor: Daniel Zagury
  • Publication number: 20200297837
    Abstract: In the present invention, the Applicant provides a novel method for preventing or treating an infectious disease in a subject in need thereof. In particular said method comprise the administration of a combination, pharmaceutical combination, medicament or kit-of-parts comprising a first part comprising a CD8 vaccine specific for at least one infectious disease-related antigen, optionally a second part comprising an interferon alpha blocking agent, and a third part comprising a type III interferon and/or an agent stimulating the production of type III interferon.
    Type: Application
    Filed: March 20, 2020
    Publication date: September 24, 2020
    Applicant: 21C Bio
    Inventor: Daniel ZAGURY
  • Patent number: 10632186
    Abstract: A novel method for preventing or treating an infectious disease in a subject in need thereof. In particular the method includes the administration of a combination, pharmaceutical combination, medicament or kit-of-parts having a first part including a CD8 vaccine specific for at least one infectious disease-related antigen, a second part including an agent neutralizing circulating alpha interferon and/or an agent blocking interferon alpha signaling, and/or a third part including a type III interferon and/or an agent stimulating the production of type III interferon.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: April 28, 2020
    Assignee: 21C Bio
    Inventor: Daniel Zagury
  • Publication number: 20190167791
    Abstract: The present invention relates to therapeutic uses of ex vivo generated Foxp3+ regulatory T cells. The inventors showed the presence of Foxp3+ expressing T cells in tumor infiltrating lymphocytes (TILs) isolated from luminal-B breast cancer. The inventors performed an ex vivo generation and expansion of specific CD3+ TCRy8+ expressing Foxp3: CD3+ TCRy8+ T cells maintain their Foxp3 level and their suppressive activity, after a further 21-day-culture. They also showed that tumor Ag-specific CD3+ TCR Va24+ T cells maintain their ability to perform suppressive function in pro-inflammatory conditions. In particular, the present invention relates to immunotherapeutic uses of at least one of ex vivo generated Foxp3+regulatory T cells population selected among a MHCII restricted CD4+Foxp3+regulatory T cells population, a y8 Foxp3+regulatory T cells population and an invariant Foxp3+regulatory T cells population.
    Type: Application
    Filed: August 4, 2017
    Publication date: June 6, 2019
    Inventors: Daniel ZAGURY, Helene LE BUANEC, Sophie DUCHEZ, Valerie SCHIAVON, Armand BENSUSSAN
  • Publication number: 20190161728
    Abstract: The present invention relates to a method for ex vivo generating and expanding MHCII restricted CD4+ Foxp3+ regulatory T cells, and therapeutic uses thereof. The inventors here demonstrated the optimal conditions for inducing Foxp3 expression in naive CD3+ CD4+ TCR??+ MHCII restricted T following polyclonal or following antigen-specific activation. They also developed an experimental procedure to generate autologous CD8+ T cell lines functionally committed to lyse tumor-antigen specific FOXP3 expressing TCR??+ MHCII restricted T cells, pathogenic CD4+ T cells that favour tumor cell immune evasion. In particular, the present invention relates to a method for generating ex vivo MHCII restricted CD4+ Foxp3+ regulatory T cells having the following phenotype: CD3+ CD4+ Foxp3+.
    Type: Application
    Filed: August 4, 2017
    Publication date: May 30, 2019
    Inventors: Daniel ZAGURY, Helene LE BUANEC, Sophie DUCHEZ, Valerie SCHIAVON, Armand BENSUSSAN
  • Publication number: 20190161729
    Abstract: The present invention relates to a method for ex vivo generating and expanding ?? Foxp3+ regulatory T cells, and therapeutic uses thereof. The inventors performed the induction of Foxp3? expression in ex vivo human induced tumor-antigen specific CD4+ TCR?? unrestricted T cells and the induction of autologous CD8-mediated T-cell responses against tumor-antigen specific FOXP3 expressing CD4+ TCR?? unrestricted T cells. The inventors developed a method to ex vivo generated and expanded antigen specific Foxp3 expressing CD3+ TCR?? unrestricted T cells, committed to exclusively exert regulatory activity, whichever culture condition of stimulation is. In particular, the present invention relates to a method for generating ex vivo ?? Foxp3+ regulatory T cells having the following phenotype: CD3+ TCR?? Foxp3+.
    Type: Application
    Filed: August 4, 2017
    Publication date: May 30, 2019
    Inventors: Daniel ZAGURY, Helene LE BUANEC, Sophie DUCHEZ, Valerie SCHIAVON, Armand BENSUSSAN
  • Patent number: 8697047
    Abstract: The invention relates to a stable immunogenic product for the induction of antibodies against one or more antigenic proteins in a subject. The invention is characterized in that it comprises proteinaceous immunogenic heterocomplexes which are formed by associations between (i) antigenic protein molecules and (ii) proteinaceous carrier molecules and in that less than 40% of the antigenic proteins (i) are linked to the proteinaceous carrier molecules (ii) by a covalent bond.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: April 15, 2014
    Assignee: Neovacs
    Inventors: Helene Le Buannec, Daniel Zagury
  • Patent number: 8679483
    Abstract: The invention concerns a pharmaceutical composition comprising, as the active ingredient, human natural antibodies of the IgG isotype, that neutralize the activity of a human cytokine selected from VEGF, IFN?, IL-4, TNF? and TGF?, the said neutralizing antibodies inhibiting at least 50% of the maximum biological activity induced by an amount ranging from 0.006 ng to 0.05 ng of the said cytokine in vitro.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: March 25, 2014
    Assignee: Neovacs
    Inventors: Bernard Bizzini, Helene Le Buanec, Daniel Zagury
  • Patent number: 8372388
    Abstract: A stable immunogenic product for the induction of antibodies against one or more antigenic proteins in a subject, characterized in that it comprises proteinaceous immunogenic heterocomplexes which are formed by associations between (i) antigenic protein molecules and (ii) proteinaceous carrier molecules and in that less than 40% of the antigenic proteins (i) are linked to the proteinaceous carrier molecules (ii) by a covalent bond.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: February 12, 2013
    Assignee: Neovacs
    Inventors: Hélène Le Buanec, Daniel Zagury
  • Patent number: 8101165
    Abstract: The invention concerns vaccines comprising as an active principle an immunogen which is a cytokinetic factor or a cell regulating factor particularly transcriptional or another type of factor with immunosuppressive/apoptotic/angiogenic properties abnormally released in the extracellular (stromal) environment by cancer or stromal cells of malignant tumors, and a pharmaceutically acceptable carrier for inducing a systemic or mucosal immune response with secretory formation of class IgC or IgA neutralizing antibodies directed against the native factor, or which is derived from such a factor and the use of said immunogen to obtain a medicine for use as anticancer drug.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: January 24, 2012
    Assignee: Neovacs
    Inventors: Jean Francois Zagury, Bernard Bizzini, Helene Le Buanec, Daniel Zagury
  • Publication number: 20110250174
    Abstract: The invention relates to a stable immunogenic product for the induction of antibodies against one or more antigenic proteins in a subject. The invention is characterised in that it comprises proteinaceous immunogenic heterocomplexes which are formed by associations between (i) antigenic protein molecules and (ii) proteinaceous carrier molecules and in that less than 40% of the antigenic proteins (i) are linked to the proteinaceous carrier molecules (ii) by a covalent bond.
    Type: Application
    Filed: May 31, 2011
    Publication date: October 13, 2011
    Applicant: NEOVACS
    Inventors: Helene LE BUANNEC, Daniel ZAGURY
  • Patent number: 7972603
    Abstract: The invention relates to a stable immunogenic product for the induction of antibodies against one or more antigenic proteins in a subject. The invention is characterised in that it comprises proteinaceous immunogenic heterocomplexes which are formed by associations between (i) antigenic protein molecules and (ii) proteinaceous carrier molecules and in that less than 40% of the antigenic proteins (i) are linked to the proteinaceous carrier molecules (ii) by a covalent bond.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: July 5, 2011
    Assignee: Neovacs
    Inventors: Helene Le Buannec, Daniel Zagury