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Seeherman HJ, Berasi SP, Brown CT, Martinez RX, Juo ZS, Jelinsky S, Cain MJ, Grode J, Tumelty KE, Bohner M, Grinberg O, Orr N, Shoseyov O, Eyckmans J, Chen C, Morales PR, Wilson CG, Vanderploeg EJ, Wozney JM. A BMP/activin A chimera is superior to native BMPs and induces bone repair in nonhuman primates when delivered in a composite matrix. Sci Transl Med 2020; 11:11/489/eaar4953. [PMID: 31019025 DOI: 10.1126/scitranslmed.aar4953] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 07/19/2018] [Accepted: 03/11/2019] [Indexed: 12/17/2022]
Abstract
Bone morphogenetic protein (BMP)/carriers approved for orthopedic procedures achieve efficacy superior or equivalent to autograft bone. However, required supraphysiological BMP concentrations have been associated with potential local and systemic adverse events. Suboptimal BMP/receptor binding and rapid BMP release from approved carriers may contribute to these outcomes. To address these issues and improve efficacy, we engineered chimeras with increased receptor binding by substituting BMP-6 and activin A receptor binding domains into BMP-2 and optimized a carrier for chimera retention and tissue ingrowth. BV-265, a BMP-2/BMP-6/activin A chimera, demonstrated increased binding affinity to BMP receptors, including activin-like kinase-2 (ALK2) critical for bone formation in people. BV-265 increased BMP intracellular signaling, osteogenic activity, and expression of bone-related genes in murine and human cells to a greater extent than BMP-2 and was not inhibited by BMP antagonist noggin or gremlin. BV-265 induced larger ectopic bone nodules in rats compared to BMP-2 and was superior to BMP-2, BMP-2/6, and other chimeras in nonhuman primate bone repair models. A composite matrix (CM) containing calcium-deficient hydroxyapatite granules suspended in a macroporous, fenestrated, polymer mesh-reinforced recombinant human type I collagen matrix demonstrated improved BV-265 retention, minimal inflammation, and enhanced handling. BV-265/CM was efficacious in nonhuman primate bone repair models at concentrations ranging from 1/10 to 1/30 of the BMP-2/absorbable collagen sponge (ACS) concentration approved for clinical use. Initial toxicology studies were negative. These results support evaluations of BV-265/CM as an alternative to BMP-2/ACS in clinical trials for orthopedic conditions requiring augmented healing.
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Affiliation(s)
| | - Stephen P Berasi
- Centers for Therapeutic Innovation, Pfizer Inc., Boston, MA 02115, USA
| | | | - Robert X Martinez
- Department of Inflammation and Immunology, Pfizer Inc., Cambridge, MA 02139, USA
| | - Z Sean Juo
- Biomedical Design, Pfizer Inc., Cambridge, MA 02139, USA
| | - Scott Jelinsky
- Department of Inflammation and Immunology, Pfizer Inc., Cambridge, MA 02139, USA
| | - Michael J Cain
- Department of Inflammation and Immunology, Pfizer Inc., Cambridge, MA 02139, USA
| | - Jaclyn Grode
- Bioventus Surgical, Bioventus LLC, Boston, MA 02215, USA
| | | | - Marc Bohner
- Robert Mathys Stiftung (RMS) Foundation, Bettlach 2544, Switzerland
| | | | - Nadav Orr
- CollPlant Ltd., Ness Ziona 74140, Israel
| | | | - Jeroen Eyckmans
- Biological Design Center and Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA.,Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA 02115, USA
| | - Christopher Chen
- Biological Design Center and Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA.,Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA 02115, USA
| | | | | | | | - John M Wozney
- Bioventus Surgical, Bioventus LLC, Boston, MA 02215, USA
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2
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Zhong X, Cooley C, Seth N, Juo ZS, Presman E, Resendes N, Kumar R, Allen M, Mosyak L, Stahl M, Somers W, Kriz R. Engineering novel Lec1 glycosylation mutants in CHO-DUKX cells: Molecular insights and effector modulation of N-acetylglucosaminyltransferase I. Biotechnol Bioeng 2012; 109:1723-34. [DOI: 10.1002/bit.24448] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 01/12/2012] [Accepted: 01/13/2012] [Indexed: 12/29/2022]
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Liu H, Juo ZS, Hye-Ryong Shim A, Focia PJ, Chen X, Garcia KC, He X. Structural basis of semaphorin-plexin recognition and viral mimicry from Sema7A and A39R complexes with PlexinC1. Cell 2010; 142:749-61. [PMID: 20727575 PMCID: PMC2936782 DOI: 10.1016/j.cell.2010.07.040] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2010] [Revised: 06/08/2010] [Accepted: 07/20/2010] [Indexed: 12/19/2022]
Abstract
Repulsive signaling by Semaphorins and Plexins is crucial for the development and homeostasis of the nervous, immune, and cardiovascular systems. Sema7A acts as both an immune and a neural Semaphorin through PlexinC1, and A39R is a Sema7A mimic secreted by smallpox virus. We report the structures of Sema7A and A39R complexed with the Semaphorin-binding module of PlexinC1. Both structures show two PlexinC1 molecules symmetrically bridged by Semaphorin dimers, in which the Semaphorin and PlexinC1 beta propellers interact in an edge-on, orthogonal orientation. Both binding interfaces are dominated by the insertion of the Semaphorin's 4c-4d loop into a deep groove in blade 3 of the PlexinC1 propeller. A39R appears to achieve Sema7A mimicry by preserving key Plexin-binding determinants seen in the mammalian Sema7A complex that have evolved to achieve higher affinity binding to the host-derived PlexinC1. The complex structures support a conserved Semaphorin-Plexin recognition mode and suggest that Plexins are activated by dimerization.
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Affiliation(s)
- Heli Liu
- Northwestern University Feinberg School of Medicine, Department of Molecular Pharmacology & Biological Chemistry, Searle 8-417, 303 E Chicago Ave, Chicago, IL 60611, USA
| | - Z. Sean Juo
- Howard Hughes Medical Institute, and Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Beckman B171B, 279 Campus Dr, Stanford, CA 94305
| | - Ann Hye-Ryong Shim
- Northwestern University Feinberg School of Medicine, Department of Molecular Pharmacology & Biological Chemistry, Searle 8-417, 303 E Chicago Ave, Chicago, IL 60611, USA
| | - Pamela J. Focia
- Northwestern University Feinberg School of Medicine, Department of Molecular Pharmacology & Biological Chemistry, Searle 8-417, 303 E Chicago Ave, Chicago, IL 60611, USA
| | - Xiaoyan Chen
- Northwestern University Feinberg School of Medicine, Department of Molecular Pharmacology & Biological Chemistry, Searle 8-417, 303 E Chicago Ave, Chicago, IL 60611, USA
| | - K. Christopher Garcia
- Howard Hughes Medical Institute, and Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Beckman B171B, 279 Campus Dr, Stanford, CA 94305
| | - Xiaolin He
- Northwestern University Feinberg School of Medicine, Department of Molecular Pharmacology & Biological Chemistry, Searle 8-417, 303 E Chicago Ave, Chicago, IL 60611, USA
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LaPorte SL, Juo ZS, Vaclavikova J, Colf LA, Qi X, Heller NM, Keegan AD, Garcia KC. Molecular and structural basis of cytokine receptor pleiotropy in the interleukin-4/13 system. Cell 2008; 132:259-72. [PMID: 18243101 PMCID: PMC2265076 DOI: 10.1016/j.cell.2007.12.030] [Citation(s) in RCA: 405] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2007] [Revised: 11/20/2007] [Accepted: 12/15/2007] [Indexed: 11/19/2022]
Abstract
Interleukin-4 and Interleukin-13 are cytokines critical to the development of T cell-mediated humoral immune responses, which are associated with allergy and asthma, and exert their actions through three different combinations of shared receptors. Here we present the crystal structures of the complete set of type I (IL-4R alpha/gamma(c)/IL-4) and type II (IL-4R alpha/IL-13R alpha1/IL-4, IL-4R alpha/IL-13R alpha1/IL-13) ternary signaling complexes. The type I complex reveals a structural basis for gamma(c)'s ability to recognize six different gamma(c)-cytokines. The two type II complexes utilize an unusual top-mounted Ig-like domain on IL-13R alpha1 for a novel mode of cytokine engagement that contributes to a reversal in the IL-4 versus IL-13 ternary complex assembly sequences, which are mediated through substantially different recognition chemistries. We also show that the type II receptor heterodimer signals with different potencies in response to IL-4 versus IL-13 and suggest that the extracellular cytokine-receptor interactions are modulating intracellular membrane-proximal signaling events.
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MESH Headings
- Amino Acid Sequence
- Binding Sites
- Cell Line
- Cell Line, Tumor
- Crystallography, X-Ray
- Dimerization
- Dose-Response Relationship, Drug
- Histidine/metabolism
- Humans
- Hydrogen Bonding
- Hydrophobic and Hydrophilic Interactions
- Interleukin-13/genetics
- Interleukin-13/isolation & purification
- Interleukin-13/metabolism
- Interleukin-13/pharmacology
- Interleukin-4/genetics
- Interleukin-4/isolation & purification
- Interleukin-4/metabolism
- Interleukin-4/pharmacology
- Kinetics
- Ligands
- Models, Molecular
- Molecular Mimicry
- Molecular Sequence Data
- Phosphorylation
- Protein Binding
- Protein Structure, Secondary
- Protein Structure, Tertiary
- Receptors, Cytokine/chemistry
- Receptors, Cytokine/metabolism
- Receptors, Interleukin-13/chemistry
- Receptors, Interleukin-13/metabolism
- Receptors, Interleukin-4/chemistry
- Receptors, Interleukin-4/metabolism
- Recombinant Proteins/metabolism
- STAT3 Transcription Factor/metabolism
- STAT6 Transcription Factor/metabolism
- Sequence Homology, Amino Acid
- Signal Transduction
- Thermodynamics
- Tyrosine/metabolism
- X-Ray Diffraction
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Affiliation(s)
- Sherry L. LaPorte
- Howard Hughes Medical Institute, Departments of Molecular and Cellular Physiology, and Structural Biology, Stanford University School of Medicine, Stanford, CA 94305
| | - Z. Sean Juo
- Howard Hughes Medical Institute, Departments of Molecular and Cellular Physiology, and Structural Biology, Stanford University School of Medicine, Stanford, CA 94305
| | - Jana Vaclavikova
- Howard Hughes Medical Institute, Departments of Molecular and Cellular Physiology, and Structural Biology, Stanford University School of Medicine, Stanford, CA 94305
| | - Leremy A. Colf
- Howard Hughes Medical Institute, Departments of Molecular and Cellular Physiology, and Structural Biology, Stanford University School of Medicine, Stanford, CA 94305
| | - Xiulan Qi
- Center for Vascular and Inflammatory Diseases and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland, 21201
| | - Nicola M. Heller
- Center for Vascular and Inflammatory Diseases and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland, 21201
| | - Achsah D. Keegan
- Center for Vascular and Inflammatory Diseases and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland, 21201
| | - K. Christopher Garcia
- Howard Hughes Medical Institute, Departments of Molecular and Cellular Physiology, and Structural Biology, Stanford University School of Medicine, Stanford, CA 94305
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5
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Abstract
Measles virus is a highly pathogenic virus that infects roughly 20 million people per year. We report here the crystal structure of the measles virus hemagglutinin, the surface glycoprotein responsible for the binding of measles virus to its host cell receptors. Although the protein lacks neuraminidase activity, its structure resembles a 'dead' neuraminidase fold, presenting spatially distinct receptor-binding sites for its receptors CD46 and SLAM.
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Affiliation(s)
- Leremy A Colf
- Howard Hughes Medical Institute, Departments of Molecular and Cellular Physiology and of Structural Biology, Stanford University School of Medicine, Beckman Building B171, 279 Campus Drive, Stanford, California 94305, USA
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Adams EJ, Juo ZS, Venook RT, Boulanger MJ, Arase H, Lanier LL, Garcia KC. Structural elucidation of the m157 mouse cytomegalovirus ligand for Ly49 natural killer cell receptors. Proc Natl Acad Sci U S A 2007; 104:10128-33. [PMID: 17537914 PMCID: PMC1891256 DOI: 10.1073/pnas.0703735104] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2007] [Indexed: 11/18/2022] Open
Abstract
Natural killer (NK) cells express activating and inhibitory receptors that, in concert, survey cells for proper expression of cell surface major histocompatibility complex (MHC) class I molecules. The mouse cytomegalovirus encodes an MHC-like protein, m157, which is the only known viral antigen to date capable of engaging both activating (Ly49H) and inhibitory (Ly49I) NK cell receptors. We have determined the 3D structure of m157 and studied its biochemical and cellular interactions with the Ly49H and Ly49I receptors. m157 has a characteristic MHC-fold, yet possesses several unique structural features not found in other MHC class I-like molecules. m157 does not bind peptides or other small ligands, nor does it associate with beta(2)-microglobulin. Instead, m157 engages in extensive intra- and intermolecular interactions within and between its domains to generate a compact minimal MHC-like molecule. m157's binding affinity for Ly49I (K(d) approximately 0.2 microM) is significantly higher than that of classical inhibitory Ly49-MHC interactions. Analysis of viral escape mutations on m157 that render it resistant to NK killing reveals that it is likely to be recognized by Ly49H in a binding mode that differs from Ly49/MHC-I. In addition, Ly49H+ NK cells can efficiently lyse RMA cells expressing m157, despite the presence of native MHC class I. Collectively, our results show that m157 represents a structurally divergent form of MHC class I-like proteins that directly engage Ly49 receptors with appreciable affinity in a noncanonical fashion.
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MESH Headings
- Animals
- Antigens, Ly/chemistry
- Baculoviridae/genetics
- Binding Sites
- Cell Line, Tumor
- Crystallography, X-Ray
- Disulfides/chemistry
- Histocompatibility Antigens Class I/immunology
- Hydrogen Bonding
- Killer Cells, Natural/immunology
- Lectins, C-Type/chemistry
- Ligands
- Lymphoma, T-Cell/pathology
- Mice
- Models, Molecular
- Muromegalovirus/immunology
- NK Cell Lectin-Like Receptor Subfamily A
- Protein Binding
- Protein Conformation
- Protein Structure, Secondary
- Protein Structure, Tertiary
- Receptors, Immunologic/chemistry
- Receptors, Immunologic/genetics
- Receptors, Immunologic/immunology
- Receptors, NK Cell Lectin-Like
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Affiliation(s)
- Erin J. Adams
- *Departments of Molecular and Cellular Physiology and Structural Biology
| | - Z. Sean Juo
- *Departments of Molecular and Cellular Physiology and Structural Biology
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305; and
| | - Rayna Takaki Venook
- Department of Microbiology and Immunology, the Biomedical Sciences Graduate Program, and the Cancer Research Institute, University of California, San Francisco, CA 94143
| | | | - Hisashi Arase
- Department of Microbiology and Immunology, the Biomedical Sciences Graduate Program, and the Cancer Research Institute, University of California, San Francisco, CA 94143
| | - Lewis L. Lanier
- Department of Microbiology and Immunology, the Biomedical Sciences Graduate Program, and the Cancer Research Institute, University of California, San Francisco, CA 94143
| | - K. Christopher Garcia
- *Departments of Molecular and Cellular Physiology and Structural Biology
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305; and
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7
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Abstract
The pre-B cell receptor (pre-BCR) serves as a checkpoint in B cell development. In the 2.7 angstrom structure of a human pre-BCR Fab-like fragment, consisting of an antibody heavy chain (HC) paired with the surrogate light chain, the "unique regions" of VpreB and lambda5 replace the complementarity-determining region 3 (CDR3) loop of an antibody light chain and appear to "probe" the HC CDR3, potentially influencing the selection of the antibody repertoire. Biochemical analysis indicates that the pre-BCR is impaired in its ability to recognize antigen, which, together with electron microscopic visualization of a pre-BCR dimer, suggests ligand-independent oligomerization as the likely signaling mechanism.
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Affiliation(s)
- Alexander J Bankovich
- Program in Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
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Juo ZS, Kassavetis GA, Wang J, Geiduschek EP, Sigler PB. Crystal structure of a transcription factor IIIB core interface ternary complex. Nature 2003; 422:534-9. [PMID: 12660736 DOI: 10.1038/nature01534] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2002] [Accepted: 03/11/2003] [Indexed: 11/09/2022]
Abstract
Transcription factor IIIB (TFIIIB), consisting of the TATA-binding protein (TBP), TFIIB-related factor (Brf1) and Bdp1, is a central component in basal and regulated transcription by RNA polymerase III. TFIIIB recruits its polymerase to the promoter and subsequently has an essential role in the formation of the open initiation complex. The amino-terminal half of Brf1 shares a high degree of sequence similarity with the polymerase II general transcription factor TFIIB, but it is the carboxy-terminal half of Brf1 that contributes most of its binding affinity with TBP. The principal anchoring region is located between residues 435 and 545 of yeast Brf1, comprising its homology domain II. The same region also provides the primary interface for assembling Bdp1 into the TFIIIB complex. We report here a 2.95 A resolution crystal structure of the ternary complex containing Brf1 homology domain II, the conserved region of TBP and 19 base pairs of U6 promoter DNA. The structure reveals the core interface for assembly of TFIIIB and demonstrates how the loosely packed Brf1 domain achieves remarkable binding specificity with the convex and lateral surfaces of TBP.
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Affiliation(s)
- Z Sean Juo
- Department of Molecular Biophysics & Biochemistry, Yale University, 266 Whitney Avenue, New Haven, Connecticut 06520-8114, USA.
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9
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Abstract
The crystal structure of a complex of human TATA-binding protein with TATA-sequence DNA has been solved, complementing earlier TBP/DNA analyses from Saccharomyces cerevisiae and Arabidopsis thaliana. Special insight into TATA box specificity is provided by considering the TBP/DNA complex, not as a protein molecule with bound DNA, but as a DNA duplex with a particularly large minor groove ligand. This point of view provides explanations for: (1) why T.A base-pairs are required rather than C.G; (2) why an alternation of T and A bases is needed; (3) how TBP recognizes the upstream and downstream ends of the TATA box in order to bind properly; and (4) why the second half of the TATA box can be more variable than the first.
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Affiliation(s)
- Z S Juo
- Molecular Biology Institute, University of California at Los Angeles 90095, USA
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