Patents by Inventor Alexander B. Sigalov

Alexander B. Sigalov 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: 20230364179
    Abstract: Peptides are provided consisting of L- and/or D-amino acids and combinations thereof, which affect myeloid cells by action on the triggering receptors expressed on myeloid cells (TREMs), including TREM-1 and TREM-2. The peptides act on the TREM/DAP-12 signaling complex. Also provided are lipid and sugar conjugated peptides comprising L- or D-amino acids. A method is provided of designing the peptides and lipid- and/or sugar-conjugated peptides comprising L- or D- amino acids. The disclosure relates to the therapy of various myeloid cell-related disease states involving the use of these peptides and compounds. The peptides and compounds are useful in the treatment and/or prevention of a disease or condition where myeloid cells are involved or recruited. The peptides of the present invention also are useful in the production of medical devices comprising peptide matrices (for example, medical implants and implantable devices).
    Type: Application
    Filed: April 4, 2023
    Publication date: November 16, 2023
    Inventor: Alexander B. Sigalov
  • Patent number: 11638739
    Abstract: Peptides are provided consisting of L- and/or D-amino acids and combinations thereof, which affect myeloid cells by action on the triggering receptors expressed on myeloid cells (TREMs), including TREM-1 and TREM-2. The peptides act on the TREM/DAP-12 signaling complex. Also provided are lipid and sugar conjugated peptides comprising L- or D-amino acids. A method is provided of designing the peptides and lipid- and/or sugar-conjugated peptides comprising L- or D-amino acids. The disclosure relates to the therapy of various myeloid cell-related disease states involving the use of these peptides and compounds. The peptides and compounds are useful in the treatment and/or prevention of a disease or condition where myeloid cells are involved or recruited. The peptides of the present invention also are useful in the production of medical devices comprising peptide matrices (for example, medical implants and implantable devices).
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: May 2, 2023
    Assignee: SIGNABLOK, INC.
    Inventor: Alexander B. Sigalov
  • Publication number: 20220259267
    Abstract: The present invention provides compositions comprising peptides derived from amino acid sequences (or from combinations thereof) of fusion and other protein regions of various viruses, including but not limited to, severe acute respiratory syndrome coronavirus, herpesvirus saimiri, human herpesvirus 6, Lassa virus, lymphocytic choriomeningitis virus, Mopeia virus, Tacaribe virus, Friend murine leukemia virus; human T lymphotropic virus type 1; herpesvirus ateles; Marburg virus; Sudan Ebola virus; Zaire Ebola virus, and comprising L- and/or D-amino acids and combinations thereof, which affect T cells by acting on the T cell antigen receptor (TCR). More specifically, the peptides act on the TCR??-CD3??-CD3??-?? signaling complex. Yet more specifically, the peptides act on the TCR?/CD3??/?? signaling module of TCR. The present invention further relates to the prevention and therapy of various T cell-related disease states involving the use of these compositions.
    Type: Application
    Filed: December 18, 2019
    Publication date: August 18, 2022
    Inventor: Alexander B Sigalov
  • Publication number: 20210322508
    Abstract: The invention disclosed herein provides compositions and methods of treating cancer and other diseases related to activated immune cells using modulators of the TREM-1/DAP-12 signaling pathway. The compositions, including peptides and peptide variants, modulate TREM-1-mediated immunological response as standalone and combination-therapy treatment regimen. Further, methods are provided for predicting the efficacy of TREM-1 modulatory therapies in patients. In one embodiment, the present invention relates to targeted treatment, prevention and/or detection of cancer including but not limited to lung cancer including non-small cell lung cancer, pancreatic cancer, giant cell tumor of the tendon sheath, tenosynovial giant cell tumor, pigmented villonodular synovitis, cancer cachexia, etc., and other cancers associated with myeloid cell activation and recruitment.
    Type: Application
    Filed: August 13, 2019
    Publication date: October 21, 2021
    Inventor: Alexander B. Sigalov
  • Patent number: 11097020
    Abstract: The disclosure provides compounds and compositions, and methods of using these compounds and compositions, for the targeted delivery of therapeutic agents. In one embodiment, these compositions are used for the tumor-targeted delivery of chemotherapeutic agents useful for treating cancer.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: August 24, 2021
    Assignee: SIGNABLOK, INC.
    Inventor: Alexander B. Sigalov
  • Publication number: 20210205485
    Abstract: A new approach to targeting imaging agents to macrophage-rich sites of interest is disclosed. Compositions of the invention are rHDL and HDL-like liposomal compositions, protein constituents of which, apolipoproteins A-I and/or A-II or fragments thereof are used not only as structural but also as targeting agents. This is achieved by certain controlled chemical or enzymatic modification of apolipoproteins A-I or A-II or fragments thereof. Such modification converts these apolipoproteins to substrates for macrophage scavenger receptors and results in the improvement of contrast agent-(HDL/modified apolipoprotein)-particle association with macrophages and/or absorption (uptake) by macrophages when compared to that of the contrast agent-(HDL/apolipoprotein)-particle constructed with non-modified naturally occurring apo A-I.
    Type: Application
    Filed: December 3, 2020
    Publication date: July 8, 2021
    Inventor: Alexander B. Sigalov
  • Patent number: 10894098
    Abstract: A new approach to targeting imaging agents to macrophage-rich sites of interest is disclosed. Compositions of the invention are rHDL and HDL-like liposomal compositions, protein constituents of which, apolipoproteins A-I and/or A-II or fragments thereof are used not only as structural but also as targeting agents. This is achieved by certain controlled chemical or enzymatic modification of apolipoproteins A-I or A-II or fragments thereof. Such modification converts these apolipoproteins to substrates for macrophage scavenger receptors and results in the improvement of contrast agent-(HDL/modified apolipoprotein)-particle association with macrophages and/or absorption (uptake) by macrophages when compared to that of the contrast agent-(HDL/apolipoprotein)-particle constructed with non-modified naturally occurring apo A-I.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: January 19, 2021
    Assignee: Signablok, Inc.
    Inventor: Alexander B Sigalov
  • Publication number: 20200123205
    Abstract: The present invention provides compositions comprising peptides derived from amino acid sequences (or from combinations thereof) of fusion and other protein regions of various viruses, including but not limited to, severe acute respiratory syndrome coronavirus, herpesvirus saimiri, human herpesvirus 6, Lassa virus, lymphocytic choriomeningitis virus, Mopeia virus, Tacaribe virus, Friend murine leukemia virus; human T lymphotropic virus type 1; herpesvirus ateles; Marburg virus; Sudan Ebola virus; Zaire Ebola virus, and comprising L- and/or D-amino acids and combinations thereof, which affect T cells by acting on the T cell antigen receptor (TCR). More specifically, the peptides act on the TCR??-CD3??-CD3??-?? signaling complex. Yet more specifically, the peptides act on the TCR?/CD3??/?? signaling module of TCR. The present invention further relates to the prevention and therapy of various T cell-related disease states involving the use of these compositions.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Inventor: Alexander B Sigalov
  • Publication number: 20200101178
    Abstract: A new approach to targeting imaging agents to macrophage-rich sites of interest is disclosed. Compositions of the invention are rHDL and HDL-like liposomal compositions, protein constituents of which, apolipoproteins A-I and/or A-II or fragments thereof are used not only as structural but also as targeting agents. This is achieved by certain controlled chemical or enzymatic modification of apolipoproteins A-I or A-II or fragments thereof. Such modification converts these apolipoproteins to substrates for macrophage scavenger receptors and results in the improvement of contrast agent-(HDL/modified apolipoprotein)-particle association with macrophages and/or absorption (uptake) by macrophages when compared to that of the contrast agent-(HDL/apolipoprotein)-particle constructed with non-modified naturally occurring apo A-I.
    Type: Application
    Filed: December 12, 2019
    Publication date: April 2, 2020
    Inventor: Alexander B Sigalov
  • Patent number: 10538558
    Abstract: The present invention provides compositions comprising peptides derived from amino acid sequences (or from combinations thereof) of fusion and other protein regions of various viruses, including but not limited to, severe acute respiratory syndrome coronavirus, herpesvirus saimiri, human herpesvirus 6, Lassa virus, lymphocytic choriomeningitis virus, Mopeia virus, Tacaribe virus, Friend murine leukemia virus; human T lymphotropic virus type 1; herpesvirus ateles; Marburg virus; Sudan Ebola virus; Zaire Ebola virus, and comprising L- and/or D-amino acids and combinations thereof, which affect T cells by acting on the T cell antigen receptor (TCR). More specifically, the peptides act on the TCR??-CD3??-CD3??-?? signaling complex. Yet more specifically, the peptides act on the TCR?/CD3??/?? signaling module of TCR. The present invention further relates to the prevention and therapy of various T cell-related disease states involving the use of these compositions.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: January 21, 2020
    Assignee: SIGNABLOK, INC
    Inventor: Alexander B. Sigalov
  • Patent number: 10525152
    Abstract: A new approach to targeting imaging agents to macrophage-rich sites of interest is disclosed. Compositions of the invention are rHDL and HDL-like liposomal compositions, protein constituents of which, apolipoproteins A-I and/or A-II or fragments thereof are used not only as structural but also as targeting agents. This is achieved by certain controlled chemical or enzymatic modification of apolipoproteins A-I or A-II or fragments thereof. Such modification converts these apolipoproteins to substrates for macrophage scavenger receptors and results in the improvement of contrast agent-(HDL/modified apolipoprotein)-particle association with macrophages and/or absorption (uptake) by macrophages when compared to that of the contrast agent-(HDL/apolipoprotein)-particle constructed with non-modified naturally occurring apo A-I.
    Type: Grant
    Filed: October 10, 2010
    Date of Patent: January 7, 2020
    Assignee: Signablok, Inc.
    Inventor: Alexander B. Sigalov
  • Publication number: 20190241618
    Abstract: The present invention provides compositions comprising peptides derived from amino acid sequences (or from combinations thereof) of fusion and other protein regions of various viruses, including but not limited to, severe acute respiratory syndrome coronavirus, herpesvirus saimiri, human herpesvirus 6, Lassa virus, lymphocytic choriomeningitis virus, Mopeia virus, Tacaribe virus, Friend murine leukemia virus; human T lymphotropic virus type 1; herpesvirus ateles; Marburg virus; Sudan Ebola virus; Zaire Ebola virus, and comprising L- and/or D-amino acids and combinations thereof, which affect T cells by acting on the T cell antigen receptor (TCR). More specifically, the peptides act on the TCR??-CD3??-CD3??-?? signaling complex. Yet more specifically, the peptides act on the TCR?/CD3??/?? signaling module of TCR. The present invention further relates to the prevention and therapy of various T cell-related disease states involving the use of these compositions.
    Type: Application
    Filed: October 22, 2018
    Publication date: August 8, 2019
    Inventor: Alexander B. Sigalov
  • Publication number: 20190117725
    Abstract: Peptides are provided consisting of L- and/or D-amino acids and combinations thereof, which affect myeloid cells by action on the triggering receptors expressed on myeloid cells (TREMs), including TREM-1 and TREM-2. The peptides act on the TREM/DAP-12 signaling complex. Also provided are lipid and sugar conjugated peptides comprising L- or D-amino acids. A method is provided of designing the peptides and lipid- and/or sugar-conjugated peptides comprising L- or D-amino acids. The disclosure relates to the therapy of various myeloid cell-related disease states involving the use of these peptides and compounds. The peptides and compounds are useful in the treatment and/or prevention of a disease or condition where myeloid cells are involved or recruited. The peptides of the present invention also are useful in the production of medical devices comprising peptide matrices (for example, medical implants and implantable devices).
    Type: Application
    Filed: April 25, 2018
    Publication date: April 25, 2019
    Inventor: Alexander B. Sigalov
  • Patent number: 10138276
    Abstract: The present invention provides compositions comprising peptides derived from amino acid sequences (or from combinations thereof) of fusion and other protein regions of various viruses, including but not limited to, severe acute respiratory syndrome coronavirus, herpesvirus saimiri, human herpesvirus 6, Lassa virus, lymphocytic choriomeningitis virus, Mopeia virus, Tacaribe virus, Friend murine leukemia virus; human T lymphotropic virus type 1; herpesvirus ateles; Marburg virus; Sudan Ebola virus; Zaire Ebola virus, and comprising L- and/or D-amino acids and combinations thereof, which affect T cells by acting on the T cell antigen receptor (TCR). More specifically, the peptides act on the TCR??-CD3??-CD3??-?? signaling complex. Yet more specifically, the peptides act on the TCR?/CD3??/?? signaling module of TCR. The present invention further relates to the prevention and therapy of various T cell-related disease states involving the use of these compositions.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: November 27, 2018
    Assignee: SIGNABLOK, Inc.
    Inventor: Alexander B. Sigalov
  • Patent number: 9981004
    Abstract: Peptides are provided consisting of L- and/or D-amino acids and combinations thereof, which affect myeloid cells by action on the triggering receptors expressed on myeloid cells (TREMs), including TREM-1 and TREM-2. The peptides act on the TREM/DAP-12 signaling complex. Also provided are lipid and sugar conjugated peptides comprising L- or D-amino acids. A method is provided of designing the peptides and lipid- and/or sugar-conjugated peptides comprising L- or D-amino acids. The disclosure relates to the therapy of various myeloid cell-related disease states involving the use of these peptides and compounds. The peptides and compounds are useful in the treatment and/or prevention of a disease or condition where myeloid cells are involved or recruited. The peptides of the present invention also are useful in the production of medical devices comprising peptide matrices (for example, medical implants and implantable devices).
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: May 29, 2018
    Assignee: SignaBlok, Inc.
    Inventor: Alexander B. Sigalov
  • Publication number: 20140154291
    Abstract: Peptides are provided consisting of L- and/or D-amino acids and combinations thereof, which affect myeloid cells by action on the triggering receptors expressed on myeloid cells (TREMs), including TREM-1 and TREM-2. The peptides act on the TREM/DAP-12 signaling complex. Also provided are lipid and sugar conjugated peptides comprising L- or D-amino acids. A method is provided of designing the peptides and lipid- and/or sugar-conjugated peptides comprising L- or D-amino acids. The disclosure relates to the therapy of various myeloid cell-related disease states involving the use of these peptides and compounds. The peptides and compounds are useful in the treatment and/or prevention of a disease or condition where myeloid cells are involved or recruited. The peptides of the present invention also are useful in the production of medical devices comprising peptide matrices (for example, medical implants and implantable devices).
    Type: Application
    Filed: July 12, 2013
    Publication date: June 5, 2014
    Applicant: SIGNABLOK, INC.
    Inventor: Alexander B. Sigalov
  • Patent number: 8614188
    Abstract: The present invention provides peptides consisting of L- and/or D-amino acids and combinations thereof, which affect platelets by action on the collagen receptor, glycoprotein VI (GPVI). More specifically, however, the peptides act on the GPVI-FcR? signaling complex. The invention also provides lipid and sugar conjugated peptides comprising L- or D-amino acids. The invention still further provides a method of designing of the peptides and lipid- and/or sugar-conjugated peptides comprising L- or D-amino acids. The present invention further relates to the therapy of various disease states involving the use of these peptides and compounds. Specifically, the peptides and compounds are useful in the treatment and/or prevention of a disease or condition involving platelet activation and aggregation, and more particularly, collagen-induced platelet activation and aggregation. They also are useful in the production of medical devices comprising peptide matrices (i.e., for example, cardiovascular stents).
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: December 24, 2013
    Assignee: University of Massachusetts
    Inventor: Alexander B. Sigalov
  • Patent number: 8513185
    Abstract: Peptides are provided consisting of L- and/or D-amino acids and combinations thereof, which affect myeloid cells by action on the triggering receptors expressed on myeloid cells (TREMs), including TREM-1 and TREM-2. The peptides act on the TREM/DAP-12 signaling complex. Also provided are lipid and sugar conjugated peptides comprising L- or D-amino acids. A method is provided of designing the peptides and lipid- and/or sugar-conjugated peptides comprising L- or D-amino acids. The disclosure relates to the therapy of various myeloid cell-related disease states involving the use of these peptides and compounds. The peptides and compounds are useful in the treatment and/or prevention of a disease or condition where myeloid cells are involved or recruited. The peptides of the present invention also are useful in the production of medical devices comprising peptide matrices (for example, medical implants and implantable devices).
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: August 20, 2013
    Inventor: Alexander B. Sigalov
  • Publication number: 20130045161
    Abstract: A new approach to targeting imaging agents to macrophage-rich sites of interest is disclosed. Compositions of the invention are rHDL and HDL-like liposomal compositions, protein constituents of which, apolipoproteins A-I and/or A-II or fragments thereof are used not only as structural but also as targeting agents. This is achieved by certain controlled chemical or enzymatic modification of apolipoproteins A-I or A-II or fragments thereof. Such modification converts these apolipoproteins to substrates for macrophage scavenger receptors and results in the improvement of contrast agent-(HDL/modified apolipoprotein)-particle association with macrophages and/or absorption (uptake) by macrophages when compared to that of the contrast agent-(HDL/apolipoprotein)-particle constructed with non-modified naturally occurring apo A-I.
    Type: Application
    Filed: October 10, 2010
    Publication date: February 21, 2013
    Applicant: SIGNABLOK, INC.
    Inventor: Alexander B. Sigalov
  • Publication number: 20130039948
    Abstract: The present invention provides compositions comprising peptides derived from amino acid sequences (or from combinations thereof) of fusion and other protein regions of various viruses, including but not limited to, severe acute respiratory syndrome coronavirus, herpesvirus saimiri, human herpesvirus 6, Lassa virus, lymphocytic choriomeningitis virus, Mopeia virus, Tacaribe virus, Friend murine leukemia virus; human T lymphotropic virus type 1; herpesvirus ateles; Marburg virus; Sudan Ebola virus; Zaire Ebola virus, and comprising L- and/or D-amino acids and combinations thereof, which affect T cells by acting on the T cell antigen receptor (TCR). More specifically, the peptides act on the TCR??-CD3??-CD3??-?? signaling complex. Yet more specifically, the peptides act on the TCR?/CD3??/?? signaling module of TCR. The present invention further relates to the prevention and therapy of various T cell-related disease states involving the use of these compositions.
    Type: Application
    Filed: September 30, 2010
    Publication date: February 14, 2013
    Applicant: SIGNABLOK, INC.
    Inventor: Alexander B. Sigalov