Patents by Inventor Martha S. Hayden
Martha S. Hayden 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: 20240294889Abstract: Compositions and methods relating to DNase fusion polypeptides are disclosed. The fusion polypeptides include a biologically active DNase joined to the amino-terminus of an immunoglobulin Fc region via a flexible polypeptide linker (e.g., a linker containing at least 26 amino acid residues). Typically, the DNase is a hyperactive and/or actin-resistant DNase1 variant (e.g., a variant of human DNase1 having one or more amino acid substitutions selected from substitutions at Asp-53, Tyr-65, Glu-69, Arg-74, Gly-105, and Ala-114 according to amino acid position numbering of mature wild-type human DNase1) or a DNase1L3 variant (e.g., a variant of human DNase1L3 in which the native nuclear localization signals are removed). In some embodiments, the fusion polypeptide includes a polypeptide segment located carboxyl-terminal to the Fc region and which may be, e.g., a biologically active paraoxonase. Also disclosed are dimeric proteins comprising first and second DNase fusion polypeptides as disclosed herein.Type: ApplicationFiled: April 25, 2024Publication date: September 5, 2024Applicant: Theripion, Inc.Inventors: Jeffrey A. Ledbetter, Martha S. Hayden-Ledbetter
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Publication number: 20240101982Abstract: Compositions and methods relating to paraoxonase fusion polypeptides are disclosed. In some aspects, the fusions are bispecific molecules that include a first biologically active polypeptide linked amino-terminal to a biologically active paraoxonase (e.g., human PON1 or a variant thereof), wherein the first biologically active polypeptide is a DNase, an RNase, a SOD1, a CTLA-4 extracellular domain, a CD40 extracellular domain, or a polypeptide that specifically binds and neutralizes an inflammatory cytokine. Bispecific fusions may further include a second biologically active polypeptide (e.g., a dimerizing domain or a domain that specifically binds to the neonatal Fc receptor (FcRn)) linked carboxyl-terminal to the first biologically active polypeptide and amino-terminal to the paraoxonase. In other aspects, a fusion polypeptide includes a biologically active paraoxonase linked carboxyl-terminal or amino-terminal to a dimerizing or FcRn-binding domain.Type: ApplicationFiled: February 17, 2022Publication date: March 28, 2024Inventors: Jeffrey A. Ledbetter, Martha S. Hayden-Ledbetter
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Publication number: 20230024372Abstract: Compositions and methods relating to ApoA-1 fusion polypeptides are disclosed. The fusion polypeptides include a first polypeptide segment corresponding to an ApoA-1 polypeptide or ApoA-1 mimetic, and may also include a dimerizing domain such as, e.g., an Fc region, which is typically linked carboxyl-terminal to the first polypeptide segment via a flexible linker. In some embodiments, the fusion polypeptide further includes a second polypeptide segment located carboxyl-terminal to the first polypeptide segment and which confers a second biological activity (e.g., an RNase, paraoxonase, platelet-activating factor acetylhydrolase, cholesterol ester transfer protein, lecithin-cholesterol acyltransferase, polypeptide that specifically binds to proprotein convertase subtilisin/kexin type 9, or polypeptide that specifically binds to amyloid beta). Also disclosed are dimeric proteins comprising first and second ApoA-1 fusion polypeptides as disclosed herein.Type: ApplicationFiled: September 9, 2022Publication date: January 26, 2023Inventors: Martha S. Hayden-Ledbetter, Jeffrey A. Ledbetter
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Publication number: 20230015291Abstract: Compositions and methods relating to DNase fusion polypeptides are disclosed. The fusion polypeptides include a biologically active DNase joined to the amino-terminus of an immunoglobulin Fc region via a flexible polypeptide linker (e.g., a linker containing at least 26 amino acid residues). Typically, the DNase is a hyperactive and/or actin-resistant DNase1 variant (e.g., a variant of human DNase1 having one or more amino acid substitutions selected from substitutions at Asp-53, Tyr-65, Glu-69, Arg-74, Gly-105, and Ala-114 according to amino acid position numbering of mature wild-type human DNase1) or a DNase1L3 variant (e.g., a variant of human DNase1L3 in which the native nuclear localization signals are removed). In some embodiments, the fusion polypeptide includes a polypeptide segment located carboxyl-terminal to the Fc region and which may be, e.g., a biologically active paraoxonase. Also disclosed are dimeric proteins comprising first and second DNase fusion polypeptides as disclosed herein.Type: ApplicationFiled: August 11, 2022Publication date: January 19, 2023Inventors: Jeffrey A. Ledbetter, Martha S. Hayden-Ledbetter
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Patent number: 11472864Abstract: Compositions and methods relating to ApoA-1 fusion polypeptides are disclosed. The fusion polypeptides include a first polypeptide segment corresponding to an ApoA-1 polypeptide or ApoA-1 mimetic, and may also include a dimerizing domain such as, e.g., an Fc region, which is typically linked carboxyl-terminal to the first polypeptide segment via a flexible linker. In some embodiments, the fusion polypeptide further includes a second polypeptide segment located carboxyl-terminal to the first polypeptide segment and which confers a second biological activity (e.g., an RNase, paraoxonase, platelet-activating factor acetylhydrolase, cholesterol ester transfer protein, lecithin-cholesterol acyltransferase, polypeptide that specifically binds to proprotein convertase subtilisin/kexin type 9, or polypeptide that specifically binds to amyloid beta). Also disclosed are dimeric proteins comprising first and second ApoA-1 fusion polypeptides as disclosed herein.Type: GrantFiled: December 3, 2021Date of Patent: October 18, 2022Assignee: Theripion, Inc.Inventors: Martha S. Hayden-Ledbetter, Jeffrey A. Ledbetter
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Publication number: 20220089687Abstract: Compositions and methods relating to ApoA-1 fusion polypeptides are disclosed. The fusion polypeptides include a first polypeptide segment corresponding to an ApoA-1 polypeptide or ApoA-1 mimetic, and may also include a dimerizing domain such as, e.g., an Fc region, which is typically linked carboxyl-terminal to the first polypeptide segment via a flexible linker. In some embodiments, the fusion polypeptide further includes a second polypeptide segment located carboxyl-terminal to the first polypeptide segment and which confers a second biological activity (e.g., an RNase, paraoxonase, platelet-activating factor acetylhydrolase, cholesterol ester transfer protein, lecithin-cholesterol acyltransferase, polypeptide that specifically binds to proprotein convertase subtilisin/kexin type 9, or polypeptide that specifically binds to amyloid beta). Also disclosed are dimeric proteins comprising first and second ApoA-1 fusion polypeptides as disclosed herein.Type: ApplicationFiled: December 3, 2021Publication date: March 24, 2022Inventors: Martha S. Hayden-Ledbetter, Jeffrey A. Ledbetter
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Patent number: 10307481Abstract: The present invention generally provides methods for B-cell reduction in an individual using CD37-specific binding molecules. In particular, the invention provides methods for B-cell reduction using CD37-specific binding molecules alone, or a combination of CD37-specific binding molecules and CD20-specific binding molecules, in some instances a synergistic combination. The invention further provides materials and methods for treatment of diseases involving aberrant B-cell activity. In addition, the invention provides humanized CD37-specific binding molecules.Type: GrantFiled: July 25, 2006Date of Patent: June 4, 2019Assignee: Aptevo Research and Development LLCInventors: Laura S. Grosmaire, Martha S. Hayden-Ledbetter, Jeffrey A. Ledbetter, Peter A. Thompson, Sandy A. Simon, William Brady
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Publication number: 20180201664Abstract: Compositions and methods relating to ApoA-1 fusion polypeptides are disclosed. The fusion polypeptides include a first polypeptide segment corresponding to an ApoA-1 polypeptide or ApoA-1 mimetic, and may also include a dimerizing domain such as, e.g., an Fc region, which is typically linked carboxyl-terminal to the first polypeptide segment via a flexible linker. In some embodiments, the fusion polypeptide further includes a second polypeptide segment located carboxyl-terminal to the first polypeptide segment and which confers a second biological activity (e.g., an RNase, paraoxonase, platelet-activating factor acetylhydrolase, cholesterol ester transfer protein, lecithin-cholesterol acyltransferase, polypeptide that specifically binds to proprotein convertase subtilisin/kexin type 9, or polypeptide that specifically binds to amyloid beta). Also disclosed are dimeric proteins comprising first and second ApoA-1 fusion polypeptides as disclosed herein.Type: ApplicationFiled: March 1, 2018Publication date: July 19, 2018Inventors: Martha S. Hayden-Ledbetter, Jeffrey A. Ledbetter
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Patent number: 9101609Abstract: The present disclosure provides a humanized anti-CD37 small modular immunopharmaceutical (SMIP) molecule, as well as synergistic combination therapies of CD37-specific binding molecules (such as anti-CD37 SMIP proteins or antibodies) with bifunctional chemotherapeutics (such as bendamustine) that can be administered concurrently or sequentially, for use in treating or preventing B-cell related autoimmune, inflammatory, or hyperproliferative diseases.Type: GrantFiled: April 13, 2009Date of Patent: August 11, 2015Assignee: EMERGENT PRODUCT DEVELOPMENT SEATTLE, LLCInventors: Philip Tan, Sandy A Simon, Charles G Cerveny, Christy Anne Nilsson, William Brady, Jeffrey A Ledbetter, Martha S Hayden-Ledbetter, Peter A Thompson, Cecile Morales
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Patent number: 9005612Abstract: The invention relates to novel binding domain immunoglobulin fusion proteins that feature a binding domain for a cognate structure such as an antigen, a counterreceptor or the like, a hinge region polypeptide having either zero or one cysteine residue, and immunoglobulin CH2 and CH3 domains, and that are capable of ADCC and/or CDC while occurring predominantly as monomeric polypeptides. The fusion proteins can be recombinantly produced at high expression levels. Also provided are related compositions and methods, including immunotherapeutic applications.Type: GrantFiled: April 20, 2012Date of Patent: April 14, 2015Assignee: Emergent Product Development Seattle, LLCInventors: Jeffrey A. Ledbetter, Martha S. Hayden-Ledbetter
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Publication number: 20130142793Abstract: The invention relates to novel binding domain immunoglobulin fusion proteins that feature a binding domain for a cognate structure such as an antigen, a counterreceptor or the like, a hinge region polypeptide having either zero or one cysteine residue, and immunoglobulin CH2 and CH3 domains, and that are capable of ADCC and/or CDC while occurring predominantly as monomeric polypeptides. The fusion proteins can be recombinantly produced at high expression levels. Also provided are related compositions and methods, including immunotherapeutic applications.Type: ApplicationFiled: April 20, 2012Publication date: June 6, 2013Applicant: EMERGENT PRODUCT DEVELOPMENT SEATTLE, LLCInventors: Jeffrey A. LEDBETTER, Martha S. Hayden-Ledbetter
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Patent number: 8106161Abstract: The invention relates to novel binding domain-immunoglobulin fusion proteins that feature a binding domain for a cognate structure such as an antigen, a counterreceptor or the like, a hinge region polypeptide having either zero or one cysteine residue, and immunoglobulin CH2 and CH3 domains, and that are capable of ADCC and/or CDC while occurring predominantly as monomeric polypeptides. The fusion proteins can be recombinantly produced at high expression levels. Also provided are related compositions and methods, including immunotherapeutic applications.Type: GrantFiled: March 23, 2005Date of Patent: January 31, 2012Assignee: Emergent Product Development Seattle, LLCInventors: Jeffrey A. Ledbetter, Martha S. Hayden-Ledbetter
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Publication number: 20110223164Abstract: The invention relates to novel binding domain-immunoglobulin fusion proteins that feature a binding domain for a cognate structure such as an antigen, a counterreceptor or the like, a wild-type lgG1, IGA or IgE hinge region polypeptide or a mutant IgG1 hinge region polypeptide having either zero, one or two cysteine residues, and immunoglobulin CH2 and CH3 domains, and that are capable of ADCC and/or CDC while occurring predominantly as polypeptides that are compromised in their ability to form disulfide-linked multimers. The fusion proteins can be recombinantly produced at high express levels. Also provided are related compositions and methods, including cell surface forms of the fusion proteins and immunotherapeutic applications of the fusion proteins and of polynucleotides encoding such fusion proteins.Type: ApplicationFiled: March 2, 2011Publication date: September 15, 2011Applicant: Emergent Product Development Seattle, LLCInventors: Jeffrey A. Ledbetter, Martha S. Hayden-Ledbetter
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Publication number: 20110105729Abstract: The invention relates to novel binding domain-immunoglobulin fusion proteins that feature a binding domain for a cognate structure such as an antigen, a counterreceptor or the like, a hinge region polypeptide having either zero or one cysteine residue, and immunoglobulin CH2 and CH3 domains, and that are capable of ADCC and/or CDC while occurring predominantly as monomeric polypeptides. The fusion proteins can be recombinantly produced at high expression levels. Also provided are related compositions and methods, including immunotherapeutic applications.Type: ApplicationFiled: October 8, 2010Publication date: May 5, 2011Applicant: TRUBION PHARMACEUTICALS, INC.Inventors: Jeffrey A. Ledbetter, Martha S. Hayden-Ledbetter
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Publication number: 20110091461Abstract: The invention relates to novel binding domain-immunoglobulin fusion proteins that feature a binding domain for a cognate structure such as an antigen, a counterreceptor or the like, a hinge region polypeptide having either zero or one cysteine residue, and immunoglobulin CH2 and CH3 domains, and that are capable of ADCC and/or CDC while occurring predominantly as monomeric polypeptides. The fusion proteins can be recombinantly produced at high expression levels. Also provided are related compositions and methods, including immunotherapeutic applications.Type: ApplicationFiled: October 8, 2010Publication date: April 21, 2011Applicant: TRUBION PHARMACEUTICALS, INC.Inventors: Jeffrey A. Ledbetter, Martha S. Hayden-Ledbetter
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Patent number: 7915395Abstract: The present invention provides an expression vector encoding monospecific or bispecific fusion protein. In one embodiment the expression vector encodes a monospecific fusion protein, which vector comprises a recombinant monospecific single chain cassette comprising a DNA sequence encoding a first binding domain capable of binding a cell surface antigen. In another embodiment the expression vector encodes a bispecific fusion protein, which vector comprises a recombinant bispecific single chain cassette comprising a DNA sequence encoding a first binding domain capable of binding a cell surface antigen and a DNA sequence encoding a second binding domain capable of binding a cell surface antigen, each domain capable of binding a different antigen. The present invention also provides a method for producing a biologically active monospecific or bispecific fusion protein in a mammalian cell.Type: GrantFiled: October 29, 2002Date of Patent: March 29, 2011Assignee: Bristol-Myers Squibb CompanyInventors: Jeffrey A. Ledbetter, Martha S. Hayden, Peter S. Linsley, Jurgen Bajorath, H. Perry Fell, Lisa K. Gilliland
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Publication number: 20100203052Abstract: The invention relates to novel binding domain-immunoglobulin fusion proteins that feature a binding domain for a cognate structure such as an antigen, a counterreceptor or the like, a wild-type IgG1, IGA or IgE hinge region polypeptide or a mutant IgG1 hinge region polypeptide having either zero, one or two cysteine residues, and immunoglobulin CH2 and CH3 domains, and that are capable of ADCC and/or CDC while occurring predominantly as polypeptides that are compromised in their ability to form disulfide-linked multimers. The fusion proteins can be recombinantly produced at high express levels. Also provided are related compositions and methods, including cell surface forms of the fusion proteins and immunotherapeutic applications of the fusion proteins and of polynucleotides encoding such fusion proteins.Type: ApplicationFiled: March 15, 2010Publication date: August 12, 2010Applicant: Trubion Pharmaceuticals, Inc.Inventors: Jeffrey A. Ledbetter, Martha S. Hayden-Ledbetter
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Patent number: 7754208Abstract: The invention relates to novel binding domain-immunoglobulin fusion proteins that feature a binding domain for a cognate structure such as an antigen, a counterreceptor or the like, a wild-type IgG1, IGA or IgE hinge region polypeptide or a mutant IgG1 hinge region polypeptide having either zero, one or two cysteine residues, and immunoglobulin CH2 and CH3 domains, and that are capable of ADCC and/or CDC while occurring predominantly as polypeptides that are compromised in their ability to form disulfide-linked multimers. The fusion proteins can be recombinantly produced at high expression levels. Also provided are related compositions and methods, including cell surface forms of the fusion proteins and immunotherapeutic applications of the fusion proteins and of polynucleotides encoding such fusion proteins.Type: GrantFiled: July 25, 2002Date of Patent: July 13, 2010Assignee: Trubion Pharmaceuticals, Inc.Inventors: Jeffrey A Ledbetter, Martha S Hayden-Ledbetter
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Publication number: 20090274692Abstract: The present disclosure provides a humanized anti-CD37 small modular immunopharmaceutical (SMIP) molecule, as well as synergistic combination therapies of CD37-specific binding molecules (such as anti-CD37 SMIP proteins or antibodies) with bifunctional chemotherapeutics (such as bendamustine) that can be administered concurrently or sequentially, for use in treating or preventing B-cell related autoimmune, inflammatory, or hyperproliferative diseases.Type: ApplicationFiled: April 13, 2009Publication date: November 5, 2009Applicant: Trubion Pharmaceuticals, Inc.Inventors: Phillip Tan, Sandy A. Simon, Charles G. Cerveny, Christy Anne Nilsson, William Brady, Jeffrey A. Ledbetter, Martha S. Hayden-Ledbetter, Peter A. Thompson, Cecile Morales
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Publication number: 20090214539Abstract: The present invention generally provides methods for B-cell reduction in an individual using CD37-specific binding molecules. In particular, the invention provides methods for B-cell reduction using CD37-specific binding molecules alone, or a combination of CD37-specific binding molecules and CD20-specific binding molecules, in some instances a synergistic combination. The invention further provides materials and methods for treatment of diseases involving aberrant B-cell activity. In addition, the invention provides humanized CD37-specific binding molecules.Type: ApplicationFiled: May 7, 2009Publication date: August 27, 2009Applicant: Trubion Pharmaceuticals, Inc.Inventors: Laura S. Grosmaire, Martha S. Hayden-Ledbetter, Jeffrey A. Ledbetter, Peter A. Thompson, Sandy A. Simon, William Brady