Patents by Inventor Traian Sulea

Traian Sulea 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: 11591408
    Abstract: The present invention relates to compounds, compositions, and methods are provided for covalently linking a cargo molecule, such as a therapeutic or a diagnostic agent, to a glycan in the Fab region of an antibody. Also provided are methods of modeling and producing antibodies having de novo Fab glycosylation sites. Also provided are antibody carrier conjugates, methods of using the conjugates.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: February 28, 2023
    Assignee: National Research Council of Canada
    Inventors: Michel Gilbert, Traian Sulea, Maria L. Jaramillo, Yves Durocher, Maurizio Acchione
  • Publication number: 20220323495
    Abstract: The present disclosure relates to antigen-binding agents that specifically bind to epidermal growth factor receptor variant III (EGFRvIII). Antigen-binding agents of the present disclosure include antibodies and antigen-binding fragments thereof, chimeric antigen receptors (CARs) and bi-specific T-cell engagers (BITE!), bispecific killer cell engagers (BiKEs) and bispecific killer cell engagers (TriKEs). Nucleic acid molecules and vectors expressing antibodies, antigen-binding fragments, CARs, BiTEs, BiKEs or TriKEs are also encompassed by the present disclosure. Immune cells engineered to express CARs, BiTEs, BiKEs or TriKEs may be used to specifically recognize and kill cells expressing EGFRvIII.
    Type: Application
    Filed: March 23, 2020
    Publication date: October 13, 2022
    Inventors: Scott McComb, Risini Dhammika WEERATNA, Maria JARAMILLO, Anne MARCIL, Traian SULEA, Cunle WU, Darin BLOEMBERG
  • Patent number: 11384141
    Abstract: The present document describes an antibody or an antigen-binding fragment that bind to serum albumin comprising three complementarity determining regions (CDR1, CDR2 and CDR3), for half-life extension of biologics. The present invention also relates to pharmaceutical compositions, nucleic acid vectors, cells comprising the nucleic acid vectors, and methods of removing molecules from serum.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: July 12, 2022
    Assignee: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Gregory Hussack, Jamshid Tanha, Kevin Henry, Traian Sulea
  • Publication number: 20220204587
    Abstract: The present invention relates, in general, to polypeptides capable of binding and neutralizing transforming growth factor beta (TGF-?) ligands, and uses of these polypeptides for treating disorders related to TGF-beta expression or activation (e.g. cancer and fibrotic diseases), and methods of making such molecules.
    Type: Application
    Filed: March 1, 2018
    Publication date: June 30, 2022
    Inventors: Anne E.G. LENFERINK, John C. ZWAAGSTRA, Traian SULEA, Maureen D. O'CONNOR-MCCOURT
  • Publication number: 20220193132
    Abstract: Antigen-binding agents such as antibodies or antigen-binding fragments thereof, chimeric antigen receptors (CARs), bispecific T-cell engagers (BiTEs) and the like that specifically bind to epidermal growth factor receptor variant III (EGFRvIII) are provided. The EGFRvIII-specific antibodies or antigen-binding fragments, CARs and BiTEs thereof may be used for the treatment of cancer. Antibody drug conjugates targeting EGFRvIII-expressing cells are particularly contemplated.
    Type: Application
    Filed: March 23, 2020
    Publication date: June 23, 2022
    Inventors: Anne MARCIL, Maria JARAMILLO, Traian SULEA, Maria MORENO, Cunle WU
  • Patent number: 11359010
    Abstract: It is provided an inhibitor of Toll-like Receptor 2 (TLR2) that specifically blocks an interaction between S1009A and Toll-like Receptor 2 (TLR2), and more particularly a humanized antibody against S100A9 protein for inhibiting and treating inflammatory conditions in a human patient. Particularly, this humanized antibody is specific for blocking the interaction between the S100A9 protein and the TLR-2 receptor.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: June 14, 2022
    Assignee: UNIVERSITÉ LAVAL
    Inventors: Philippe Tessier, Mélanie Tardif, Traian Sulea
  • Publication number: 20220169702
    Abstract: The present invention relates, in general, to polypeptides capable of binding and neutralizing transforming growth factor beta (TGF-beta) ligands, and uses of these polypeptides for treating disorders related to TGF-beta expression or activation (e.g. cancer and fibrotic diseases), and methods of making such molecules.
    Type: Application
    Filed: November 10, 2021
    Publication date: June 2, 2022
    Applicant: National Research Council of Canada
    Inventors: John C. Zwaagstra, Traian Sulea, Maria L. Jaramillo, Maureen D. O'Connor, Anne E.G. Lenferink
  • Publication number: 20220162337
    Abstract: The present invention is directed to anti-Her2 antibodies and fragments thereof, compositions, and uses thereof. The antibodies and fragments thereof bind to Her2-expressing cells in a pH-dependent manner, with low affinity at the physiological pH typical of normal cells and tissues, and with high affinity at the slightly acidic pH characteristic to solid tumors. Furthermore, the antibodies inhibit the growth of tumor spheroids at a level comparable to that of the benchmark anti-Her2 antibody Herceptin at acidic pH, whereas these effects were significantly reduced at physiological pH. This pH selectivity of cellular growth inhibition is maintained upon antibody conjugation to cytotoxic drugs. The invention also includes methods of treating solid tumors, methods of detecting solid tumors, and methods of pH-dependent capturing of the Her-2 ectodomain.
    Type: Application
    Filed: March 30, 2020
    Publication date: May 26, 2022
    Applicant: National Research Council of Canada
    Inventors: Traian Sulea, Jason Baardsnes, Christopher R. Corbeil, Maria L. Jaramillo, Enrico O. Purisima, John C. Zwaagstra, Nazanin Larijani Rohani
  • Publication number: 20220089704
    Abstract: Featured are compositions comprising humanized and engineered variants of an antibody variable domain (e.g., FC5), chimeric molecules comprising same, compositions comprising same, and uses thereof.
    Type: Application
    Filed: October 28, 2019
    Publication date: March 24, 2022
    Inventors: Benjamin A. Smith, Andreas Lehmann, Thomas O. Cameron, R. Blake Pepinsky, Dingyi Wen, Graham K. Farrington, Gopalan Raghunathan, Nels E. Pederson, Danica Stanimirovic, Traian Sulea, Arsalan S. Haqqani
  • Publication number: 20210332096
    Abstract: Recombinant transforming growth factor (TGF)-? monomers modified to inhibit dimerization and block TGF-? signaling are described. The recombinant TGF-? monomers lack the ability to bind and recruit TGF-? type I receptor (T?RI), but retain the capacity to bind the high affinity TGF-? type II receptor (T?RII), and in some instances, include mutations that increase their affinity for T?RII. Nucleic acid molecules and vectors encoding the recombinant TGF-? monomers are also described. Isolated cells, such as T cells, can be re-programmed with a TGF-? monomer-encoding nucleic acid or vector to secrete the monomer. Use of the recombinant TGF-? monomers and/or cells producing the recombinant TGF-? monomers, to inhibit TGF-? signaling, such as to treat disorders associated with aberrant TGF-? signaling, are also described.
    Type: Application
    Filed: July 7, 2021
    Publication date: October 28, 2021
    Applicants: University of Pittsburgh - Of the Commonwealth System of Higher Education, National Research Council of Canada
    Inventors: Andrew Peterson Hinck, Traian Sulea
  • Publication number: 20210277101
    Abstract: It is provided an inhibitor of Toll-like Receptor 2 (TLR2) that specifically blocks an interaction between S1009A and Toll-like Receptor 2 (TLR2), and more particularly a humanized antibody against S100A9 protein for inhibiting and treating inflammatory conditions in a human patient. Particularly, this humanized antibody is specific for blocking the interaction between the S100A9 protein and the TLR-2 receptor.
    Type: Application
    Filed: July 11, 2016
    Publication date: September 9, 2021
    Applicant: UNIVERSITÉ LAVAL
    Inventors: Philippe TESSIER, Mélanie TARDIF, Traian SULEA
  • Publication number: 20210253679
    Abstract: The present document describes an antibody or an antigen-binding fragment that bind to serum albumin comprising three complementarity determining regions (CDR1, CDR2 and CDR3), for half-life extension of biologics. The present invention also relates to pharmaceutical compositions, nucleic acid vectors, cells comprising the nucleic acid vectors, and methods of removing molecules from serum.
    Type: Application
    Filed: April 24, 2019
    Publication date: August 19, 2021
    Inventors: Gregory HUSSACK, Jamshid TANHA, Kevin HENRY, Traian SULEA
  • Patent number: 11091523
    Abstract: Recombinant transforming growth factor (TGF)-? monomers modified to inhibit dimerization and block TGF-? signaling are described. The recombinant TGF-? monomers lack the ability to bind and recruit TGF-? type I receptor (T?RI), but retain the capacity to bind the high affinity TGF-? type II receptor (T?RII), and in some instances, include mutations that increase their affinity for T?RII. Nucleic acid molecules and vectors encoding the recombinant TGF-? monomers are also described. Isolated cells, such as T cells, can be re-programmed with a TGF-? monomer-encoding nucleic acid or vector to secrete the monomer. Use of the recombinant TGF-? monomers and/or cells producing the recombinant TGF-? monomers, to inhibit TGF-? signaling, such as to treat disorders associated with aberrant TGF-? signaling, are also described.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: August 17, 2021
    Assignees: University of Pittsburgh—Of the Commonwealth System of Higher Education, National Research Council of Canada
    Inventors: Andrew Peterson Hinck, Traian Sulea
  • Publication number: 20210206842
    Abstract: The present disclosure concerns antibodies specific for the Na v.7 polypeptides which are capable of antagonizing the biological activity of the Na v.7 polypeptide. The anti-Na v.7 antibodies can be used for alleviating the symptoms of pain and/or for treating or alleviating the symptoms of an hyperproliferative disease. The presence disclosure also concerns immunogens and methods for making antibodies, such as the anti-Na v.7 antibodies, comprising a single-domain antibody.
    Type: Application
    Filed: May 17, 2019
    Publication date: July 8, 2021
    Inventors: Marzia MARTINA, Balu CHAKRAVARTHY, Yves DUROCHER, Mehdi ARBABI-GHAHROUDI, Anne MARCIL, Danica STANIMIROVIC, Traian SULEA, Maria MORENO, Umberto BANDERALI
  • Publication number: 20210171613
    Abstract: The present invention is directed to Clostridium difficile toxin-specific antibodies, compositions, and uses thereof. The anti-toxin antibodies may be specific for TcdA. The invention also includes methods of treating a Clostridium difficile infection, methods of capturing Clostridium difficile toxins, and methods of detecting Clostridium difficile toxins.
    Type: Application
    Filed: July 9, 2018
    Publication date: June 10, 2021
    Applicant: National Research Council of Canada
    Inventors: Traian SULEA, Gregory HUSSACK, Jamshid TANHA, Enrico O. PURISIMA
  • Publication number: 20210087298
    Abstract: The present invention relates to compounds, compositions, and methods are provided for covalently linking a cargo molecule, such as a therapeutic or a diagnostic agent, to a glycan in the Fab region of an antibody. Also provided are methods of modeling and producing antibodies having de novo Fab glycosylation sites. Also provided are antibody carrier conjugates, methods of using the conjugates.
    Type: Application
    Filed: November 8, 2018
    Publication date: March 25, 2021
    Applicant: National Research Council of Canada
    Inventors: Michel GILBERT, Traian SULEA, Maria L. JARAMILLO, Yves DUROCHER, Maurizio ACCHIONE
  • Publication number: 20210054067
    Abstract: Antibodies and antigen binding fragments that specifically bind to KAAG1 and which may be used in the treatment, detection and diagnosis of cancer comprising KAAG1-expressing cells are disclosed herein. Cells expressing the antibodies and antigen binding fragments as well as methods of detecting and treating cancer using the antibodies and fragments are also disclosed. Cancer indications which may benefit from such treatment or detection include ovarian cancer, renal cancer, lung cancer, colorectal cancer, breast cancer, brain cancer, and prostate cancer, as well as melanomas.
    Type: Application
    Filed: December 9, 2019
    Publication date: February 25, 2021
    Inventors: Gilles Bernard Tremblay, Anna N. Moraitis, Traian Sulea, Mario Filion
  • Patent number: 10906973
    Abstract: The present invention relates, in general, to polypeptides capable of transmigrating the blood-brain barrier, and uses thereof. More specifically, the present invention relates to polypeptides derived by site-directed mutagenesis of an existing antibody fragment and uses thereof, and methods of making such molecules. The polypeptides of the present invention show enhanced blood-brain barrier crossing and brain exposure levels in vitro and in vivo.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: February 2, 2021
    Assignees: National Research Council of Canada, Cephalon, Inc.
    Inventors: Danica Stanimirovic, Traian Sulea, Kristin Kemmerich, David Wilson, Jennifer Stratton, Matthew Pollard, Adam Clarke
  • Publication number: 20200325243
    Abstract: Herein described are antibodies to epidermal growth factor receptor (EGFR) having an EGFR binding affinity that is sufficient to kill disease cells presenting EGFR at high density, but is insufficient for binding to normal cells. A therapeutic effect is thus achieved while avoiding adverse events that result from unintended binding to normal cells.
    Type: Application
    Filed: February 21, 2020
    Publication date: October 15, 2020
    Inventors: Ilia Alexandre TIKHOMIROV, Maria L. JARAMILLO, Maureen D. O'CONNOR-MCCOURT, Traian SULEA, Renald GILBERT, Bruno GAILLET, Jason BAARDSNES, Myriam BANVILLE, Suzanne GROTHE
  • Patent number: 10738115
    Abstract: The present invention relates to antibodies and fragments thereof derived by humanization of an existing antibody, and methods of making them. The humanized antibodies of the present invention show enhanced binding to the brain endothelial antigen, improved transmigration across the blood-brain barrier, and increased thermal stability relative to the parent non-humanized antibody.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: August 11, 2020
    Assignee: National Research Council of Canada
    Inventors: Danica Stanimirovic, Kristin Kemmerich, Yves Durocher, Traian Sulea