1
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Henderson EA, Lukomski S, Boone BA. Emerging applications of cancer bacteriotherapy towards treatment of pancreatic cancer. Front Oncol 2023; 13:1217095. [PMID: 37588093 PMCID: PMC10425600 DOI: 10.3389/fonc.2023.1217095] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/26/2023] [Indexed: 08/18/2023] Open
Abstract
Pancreatic cancer is a highly aggressive form of cancer with a five-year survival rate of only ten percent. Pancreatic ductal adenocarcinoma (PDAC) accounts for ninety percent of those cases. PDAC is associated with a dense stroma that confers resistance to current treatment modalities. Increasing resistance to cancer treatments poses a challenge and a need for alternative therapies. Bacterial mediated cancer therapies were proposed in the late 1800s by Dr. William Coley when he injected osteosarcoma patients with live streptococci or a fabrication of heat-killed Streptococcus pyogenes and Serratia marcescens known as Coley's toxin. Since then, several bacteria have gained recognition for possible roles in potentiating treatment response, enhancing anti-tumor immunity, and alleviating adverse effects to standard treatment options. This review highlights key bacterial mechanisms and structures that promote anti-tumor immunity, challenges and risks associated with bacterial mediated cancer therapies, and applications and opportunities for use in PDAC management.
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Affiliation(s)
- Emily A. Henderson
- Department of Microbiology, Immunology and Cell Biology, West Virginia University, Morgantown, WV, United States
| | - Slawomir Lukomski
- Department of Microbiology, Immunology and Cell Biology, West Virginia University, Morgantown, WV, United States
- West Virginia Cancer Institute, West Virginia University, Morgantown, WV, United States
| | - Brian A. Boone
- Department of Microbiology, Immunology and Cell Biology, West Virginia University, Morgantown, WV, United States
- West Virginia Cancer Institute, West Virginia University, Morgantown, WV, United States
- Department of Surgery, West Virginia University, Morgantown, WV, United States
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2
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Goncalves AG, Hartzell EJ, Sullivan MO, Chen W. Recombinant protein polymer-antibody conjugates for applications in nanotechnology and biomedicine. Adv Drug Deliv Rev 2022; 191:114570. [PMID: 36228897 DOI: 10.1016/j.addr.2022.114570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 09/03/2022] [Accepted: 10/04/2022] [Indexed: 01/24/2023]
Abstract
Currently, there are over 100 antibody-based therapeutics on the market for the treatment of various diseases. The increasing importance of antibody treatment is further highlighted by the recent FDA emergency use authorization of certain antibody therapies for COVID-19 treatment. Protein-based materials have gained momentum for antibody delivery due to their biocompatibility, tunable chemistry, monodispersity, and straightforward synthesis and purification. In this review, we discuss progress in engineering the molecular features of protein-based biomaterials, in particular recombinant protein polymers, for introducing novel functionalities and enhancing the delivery properties of antibodies and related binding protein domains.
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Affiliation(s)
- Antonio G Goncalves
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, DE 19716, United States
| | - Emily J Hartzell
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, DE 19716, United States
| | - Millicent O Sullivan
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, DE 19716, United States.
| | - Wilfred Chen
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, DE 19716, United States.
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3
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Hu J, Wang J, Zhu X, Tu RS, Nanda V, Xu F. Design Strategies to Tune the Structural and Mechanical Properties of Synthetic Collagen Hydrogels. Biomacromolecules 2021; 22:3440-3450. [PMID: 34212715 DOI: 10.1021/acs.biomac.1c00520] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
As an important component of biomaterials, collagen provides three-dimensional scaffolds and biological cues for cell adhesion and proliferation in tissue engineering. Recombinant collagen-like proteins, which were initially discovered in Streptococcus pyogenes and produced in heterologous hosts, have been chemically and genetically engineered for biomaterial applications. However, existing collagen-like proteins do not form gels, limiting their utility as biomaterials. Here, we present a series of rationally designed collagen-like proteins composed of a trimerization domain, triple-helical domains with various lengths, and a pair of heterotrimeric coiled-coil sequences attached to the N- and C-termini as adhesive ends. These designed proteins fold into triple helices and form self-supporting gels. As the triple-helical domains are lengthened, the gels become less stiff, pore sizes increase, and structural anisotropy decreases. Moreover, cell-culture assay confirms that the designed proteins are noncytotoxic. This study provides a design strategy for collagen-based biomaterials. The sequence variations reveal a relationship between the protein primary structure and material properties, where variations in the cross-linking density and association energies define the gelation of the protein network.
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Affiliation(s)
- Jinyuan Hu
- Ministry of Education Key Laboratory of Industrial Biotechnology, School of Biotechnology, Jiangnan University, 214122 Wuxi, China
| | - Jie Wang
- Ministry of Education Key Laboratory of Industrial Biotechnology, School of Biotechnology, Jiangnan University, 214122 Wuxi, China
| | - Xiaonan Zhu
- Ministry of Education Key Laboratory of Industrial Biotechnology, School of Biotechnology, Jiangnan University, 214122 Wuxi, China
| | - Raymond S Tu
- Department of Chemical Engineering, The City College of City University of New York, 160 Convent Avenue, Steinman Hall T313, New York, New York 10031, United States
| | - Vikas Nanda
- Center for Advanced Biotechnology and Medicine and the Department of Biochemistry and Molecular Biology, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Fei Xu
- Ministry of Education Key Laboratory of Industrial Biotechnology, School of Biotechnology, Jiangnan University, 214122 Wuxi, China
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4
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Merrett K, Wan F, Lee CJ, Harden JL. Enhanced Collagen-like Protein for Facile Biomaterial Fabrication. ACS Biomater Sci Eng 2021; 7:1414-1427. [PMID: 33733733 DOI: 10.1021/acsbiomaterials.1c00069] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We present a collagen-mimetic protein of bacterial origin based upon a modified subdomain of the collagen-like Sc12 protein from Streptococcus pyogenes, as an alternative collagen-like biomaterial platform that is highly soluble, forms stable, homogeneous, fluid-like solutions at elevated concentrations, and that can be efficiently fabricated into hydrogel materials over a broad range of pH conditions. This extended bacterial collagen-like (eBCL) protein is expressed in a bacterial host and purified as a trimeric assembly exhibiting a triple helical secondary structure in its collagen-like subdomain that is stable near physiological solution conditions (neutral pH and 37 °C), as well as over a broad range of pH conditions. We also show how this sequence can be modified to include biofunctional attributes, in particular, the Arg-Gly-Asp (RGD) sequence to elicit integrin-specific cell binding, without loss of structural function. Furthermore, through the use of EDC-NHS chemistry, we demonstrate that members of this eBCL protein system can be covalently cross-linked to fabricate transparent hydrogels with high protein concentrations (at least to 20% w/w). These hydrogels are shown to possess material properties and resistance to enzymatic degradation that are comparable or superior to a type I collagen control. Moreover, such hydrogels containing the constructs with the RGD integrin-binding sequence are shown to promote the adhesion, spreading, and proliferation of C2C12 and 3T3 cells in vitro. Due to its enhanced solubility, structural stability, fluidity at elevated concentrations, ease of modification, and facility of cross-linking, this eBCL collagen-mimetic system has potential for numerous biomedical material applications, where the ease of processing and fabrication and the facility to tailor the sequence for specific biological functionality are desired.
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Affiliation(s)
- Kim Merrett
- Department of Physics, University of Ottawa, Ontario K1N 6N5, Canada
| | - Fan Wan
- Department of Physics, University of Ottawa, Ontario K1N 6N5, Canada
| | - Chyan-Jang Lee
- Department of Physics, University of Ottawa, Ontario K1N 6N5, Canada
| | - James L Harden
- Department of Physics, University of Ottawa, Ontario K1N 6N5, Canada.,Ottawa Institute of Systems Biology, University of Ottawa, Ontario K1H 8M5, Canada.,Centre for Advanced Materials Research, University of Ottawa, Ontario K1N 6N5, Canada
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5
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Chen EA, Lin YS. Using synthetic peptides and recombinant collagen to understand DDR–collagen interactions. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:118458. [DOI: 10.1016/j.bbamcr.2019.03.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/03/2019] [Accepted: 03/08/2019] [Indexed: 12/31/2022]
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McNitt DH, Van De Water L, Marasco D, Berisio R, Lukomski S. Streptococcal Collagen-like Protein 1 Binds Wound Fibronectin: Implications in Pathogen Targeting. Curr Med Chem 2019; 26:1933-1945. [PMID: 30182848 DOI: 10.2174/0929867325666180831165704] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/18/2018] [Accepted: 06/28/2018] [Indexed: 02/01/2023]
Abstract
Group A Streptococcus (GAS) infections are responsible for significant morbidity and mortality worldwide. The outlook for an effective global vaccine is reduced because of significant antigenic variation among GAS strains worldwide. Other challenges in GAS therapy include the lack of common access to antibiotics in developing countries, as well as allergy to and treatment failures with penicillin and increasing erythromycin resistance in the industrialized world. At the portal of entry, GAS binds to newly deposited extracellular matrix, which is rich in cellular fibronectin isoforms with extra domain A (EDA, also termed EIIIA) via the surface adhesin, the streptococcal collagen-like protein 1 (Scl1). Recombinant Scl1 constructs, derived from diverse GAS strains, bind the EDA loop segment situated between the C and C' β-strands. Despite the sequence diversity in Scl1 proteins, multiple sequence alignments and secondary structure predictions of Scl1 variants, as well as crystallography and homology modeling studies, point to a conserved mechanism of Scl1-EDA binding. We propose that targeting this interaction may prevent the progression of infection. A synthetic cyclic peptide, derived from the EDA C-C' loop, binds to recombinant Scl1 with a micromolar dissociation constant. This review highlights the current concept of EDA binding to Scl1 and provides incentives to exploit this binding to treat GAS infections and wound colonization.
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Affiliation(s)
- Dudley H McNitt
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, 2095 Health Sciences North, Morgantown, WV 26506, United States
| | - Livingston Van De Water
- Departments of Surgery and Regenerative and Cancer Cell Biology, Albany Medical College, Albany, NY 12208, United States
| | - Daniela Marasco
- Department of Pharmacy, University of Naples Frederico II, Naples, Italy
| | - Rita Berisio
- Institute of Biostructures and Bioimaging, National Research Council, via Mezzocannone, 16, 80134, Naples, Italy
| | - Slawomir Lukomski
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, 2095 Health Sciences North, Morgantown, WV 26506, United States
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7
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8
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McNitt DH, Choi SJ, Keene DR, Van De Water L, Squeglia F, Berisio R, Lukomski S. Surface-exposed loops and an acidic patch in the Scl1 protein of group A Streptococcus enable Scl1 binding to wound-associated fibronectin. J Biol Chem 2018; 293:7796-7810. [PMID: 29615492 DOI: 10.1074/jbc.ra118.002250] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 03/29/2018] [Indexed: 12/22/2022] Open
Abstract
Keratinized epidermis constitutes a powerful barrier of the mucosa and skin, effectively preventing bacterial invasion, unless it is wounded and no longer protective. Wound healing involves deposition of distinct extracellular matrix (ECM) proteins enriched in cellular fibronectin (cFn) isoforms containing extra domain A (EDA). The streptococcal collagen-like protein 1 (Scl1) is a surface adhesin of group A Streptococcus (GAS), which contains an N-terminal variable (V) domain and a C-terminally located collagen-like domain. During wound infection, Scl1 selectively binds EDA/cFn isoforms and laminin, as well as low-density lipoprotein (LDL), through its V domain. The trimeric V domain has a six-helical bundle fold composed of three pairs of anti-parallel α-helices interconnected by hypervariable loops, but the roles of these structures in EDA/cFn binding are unclear. Here, using recombinant Scl (rScl) constructs to investigate structure-function determinants of the Scl1-EDA/cFn interaction, we found that full-length rScl1, containing both the globular V and the collagen domains, is necessary for EDA/cFn binding. We established that the surface-exposed loops, interconnecting conserved α-helices, guide recognition and binding of Scl1-V to EDA and binding to laminin and LDL. Moreover, electrostatic surface potential models of the Scl1-V domains pointed to a conserved, negatively charged pocket, surrounded by positively charged and neutral regions, as a determining factor for the binding. In light of these findings, we propose an updated model of EDA/cFn recognition by the Scl1 adhesin from GAS, representing a significant step in understanding the Scl1-ECM interactions within the wound microenvironment that underlie GAS pathogenesis.
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Affiliation(s)
- Dudley H McNitt
- From the Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, West Virginia 26506
| | - Soo Jeon Choi
- From the Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, West Virginia 26506
| | - Douglas R Keene
- the Micro-imaging Center, Shriners Hospital for Children, Portland, Oregon 97239
| | - Livingston Van De Water
- the Departments of Surgery and Regenerative and Cancer Cell Biology, Albany Medical College, Albany, New York 12208, and
| | - Flavia Squeglia
- the Institute of Biostructures and Bioimaging, Italian National Research Council, Via Mezzocannone 16, I-80134 Naples, Italy
| | - Rita Berisio
- the Institute of Biostructures and Bioimaging, Italian National Research Council, Via Mezzocannone 16, I-80134 Naples, Italy
| | - Slawomir Lukomski
- From the Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, West Virginia 26506,
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9
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Golser AV, Röber M, Börner HG, Scheibel T. Engineered Collagen: A Redox Switchable Framework for Tunable Assembly and Fabrication of Biocompatible Surfaces. ACS Biomater Sci Eng 2017; 4:2106-2114. [DOI: 10.1021/acsbiomaterials.7b00583] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Adrian V. Golser
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
| | - Matthias Röber
- Laboratory for Organic Synthesis of Functional Systems, Department of Chemistry Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489 Berlin, Germany
| | - Hans G. Börner
- Laboratory for Organic Synthesis of Functional Systems, Department of Chemistry Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489 Berlin, Germany
| | - Thomas Scheibel
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
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10
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Lukomski S, Bachert BA, Squeglia F, Berisio R. Collagen-like proteins of pathogenic streptococci. Mol Microbiol 2017; 103:919-930. [PMID: 27997716 DOI: 10.1111/mmi.13604] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2016] [Indexed: 12/19/2022]
Abstract
The collagen domain, which is defined by the presence of the Gly-X-Y triplet repeats, is amongst the most versatile and widespread known structures found in proteins from organisms representing all three domains of life. The streptococcal collagen-like (Scl) proteins are widely present in pathogenic streptococci, including Streptococcus pyogenes, S. agalactiae, S. pneumoniae, and S. equi. Experiments and bioinformatic analyses support the hypothesis that all Scl proteins are homotrimeric and cell wall-anchored. These proteins contain the rod-shaped collagenous domain proximal to cell surface, as well as a variety of outermost non-collagenous domains that generally lack predicted functions but can be grouped into one of six clusters based on sequence similarity. The well-characterized Scl1 proteins of S. pyogenes show a dichotomous switch in ligand binding between human tissue and blood environments. In tissue, Scl1 adhesin specifically recognizes the wound microenvironment, promotes adhesion and biofilm formation, decreases bacterial killing by neutrophil extracellular traps, and modulates S. pyogenes virulence. In blood, ligands include components of complement and coagulation-fibrinolytic systems, as well as plasma lipoproteins. In all, the Scl proteins signify a large family of structurally related surface proteins, which contribute to the ability of streptococci to colonize and cause diseases in humans and animals.
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Affiliation(s)
- Slawomir Lukomski
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, WV, 26506, USA
| | - Beth A Bachert
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, WV, 26506, USA
| | - Flavia Squeglia
- Institute of Biostructures and Bioimaging, National Research Council, Naples, I-80134, Italy
| | - Rita Berisio
- Institute of Biostructures and Bioimaging, National Research Council, Naples, I-80134, Italy
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11
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Golser A, Scheibel T. Biotechnological production of the mussel byssus derived collagen preColD. RSC Adv 2017. [DOI: 10.1039/c7ra04515h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
preColD, a mussel byssus derived structural protein with a central collagen, was successfully produced recombinantly in the yeast Pichia pastoris. It shows stable beta-sheet secondary structure (based on its silk-like terminal domains) and undergoes fibrillization as the natural preCols.
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Affiliation(s)
- Adrian V. Golser
- Lehrstuhl Biomaterialien
- Fakultät für Ingenieurwissenschaften
- Universität Bayreuth
- 95440 Bayreuth
- Germany
| | - Thomas Scheibel
- Lehrstuhl Biomaterialien
- Fakultät für Ingenieurwissenschaften
- Universität Bayreuth
- 95440 Bayreuth
- Germany
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12
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Parmar AS, Xu F, Pike DH, Belure SV, Hasan NF, Drzewiecki KE, Shreiber DI, Nanda V. Metal Stabilization of Collagen and de Novo Designed Mimetic Peptides. Biochemistry 2015; 54:4987-97. [PMID: 26225466 PMCID: PMC5335877 DOI: 10.1021/acs.biochem.5b00502] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We explore the design of metal binding sites to modulate triple-helix stability of collagen and collagen-mimetic peptides. Globular proteins commonly utilize metals to connect tertiary structural elements that are well separated in sequence, constraining structure and enhancing stability. It is more challenging to engineer structural metals into fibrous protein scaffolds, which lack the extensive tertiary contacts seen in globular proteins. In the collagen triple helix, the structural adjacency of the carboxy-termini of the three chains makes this region an attractive target for introducing metal binding sites. We engineered His3 sites based on structural modeling constraints into a series of designed homotrimeric and heterotrimeric peptides, assessing the capacity of metal binding to improve stability and in the case of heterotrimers, affect specificity of assembly. Notable enhancements in stability for both homo- and heteromeric systems were observed upon addition of zinc(II) and several other metal ions only when all three histidine ligands were present. Metal binding affinities were consistent with the expected Irving-Williams series for imidazole. Unlike other metals tested, copper(II) also bound to peptides lacking histidine ligands. Acetylation of the peptide N-termini prevented copper binding, indicating proline backbone amide metal-coordination at this site. Copper similarly stabilized animal extracted Type I collagen in a metal-specific fashion, highlighting the potential importance of metal homeostasis within the extracellular matrix.
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Affiliation(s)
- Avanish S. Parmar
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad-500046, Telangana, INDIA
- Center for Advanced Biotechnology and Medicine, Department of Biochemistry and Molecular Biology Robert Wood Johnson Medical School, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Fei Xu
- Center for Advanced Biotechnology and Medicine, Department of Biochemistry and Molecular Biology Robert Wood Johnson Medical School, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Douglas H. Pike
- Center for Advanced Biotechnology and Medicine, Department of Biochemistry and Molecular Biology Robert Wood Johnson Medical School, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Sandeep V. Belure
- Center for Advanced Biotechnology and Medicine, Department of Biochemistry and Molecular Biology Robert Wood Johnson Medical School, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Nida F. Hasan
- Center for Advanced Biotechnology and Medicine, Department of Biochemistry and Molecular Biology Robert Wood Johnson Medical School, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Kathryn E. Drzewiecki
- Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey 08854, USA
| | - David I. Shreiber
- Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Vikas Nanda
- Center for Advanced Biotechnology and Medicine, Department of Biochemistry and Molecular Biology Robert Wood Johnson Medical School, Rutgers University, Piscataway, New Jersey 08854, USA
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13
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Cereceres S, Touchet T, Browning MB, Smith C, Rivera J, Höök M, Whitfield-Cargile C, Russell B, Cosgriff-Hernandez E. Chronic Wound Dressings Based on Collagen-Mimetic Proteins. Adv Wound Care (New Rochelle) 2015; 4:444-456. [PMID: 26244101 DOI: 10.1089/wound.2014.0614] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 03/27/2015] [Indexed: 12/26/2022] Open
Abstract
Objective: Chronic wounds are projected to reach epidemic proportions due to the aging population and the increasing incidence of diabetes. There is a strong clinical need for an improved wound dressing that can balance wound moisture, promote cell migration and proliferation, and degrade at an appropriate rate to minimize the need for dressing changes. Approach: To this end, we have developed a bioactive, hydrogel microsphere wound dressing that incorporates a collagen-mimetic protein, Scl2GFPGER, to promote active wound healing. A redesigned Scl2GFPGER, engineered collagen (eColGFPGER), was created to reduce steric hindrance of integrin-binding motifs and increase overall stability of the triple helical backbone, thereby resulting in increased cell adhesion to substrates. Results: This study demonstrates the successful modification of the Scl2GFPGER protein to eColGFPGER, which displayed enhanced stability and integrin interactions. Fabrication of hydrogel microspheres provided a matrix with adaptive moisture technology, and degradation rates have potential for use in human wounds. Innovation: This collagen-mimetic wound dressing was designed to permit controlled modulation of cellular interactions and degradation rate without impact on other physical properties. Its fabrication into uniform hydrogel microspheres provides a bioactive dressing that can readily conform to irregular wounds. Conclusion: Overall, this new eColGFPGER shows strong promise in the generation of bioactive hydrogels for wound healing as well as a variety of tissue scaffolds.
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Affiliation(s)
- Stacy Cereceres
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas
| | - Tyler Touchet
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas
| | - Mary Beth Browning
- Institute for Bioscience and Technology, Texas A&M Health Science Center, Houston, Texas
| | - Clayton Smith
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas
| | - Jose Rivera
- Institute for Bioscience and Technology, Texas A&M Health Science Center, Houston, Texas
| | - Magnus Höök
- Institute for Bioscience and Technology, Texas A&M Health Science Center, Houston, Texas
| | | | - Brooke Russell
- Institute for Bioscience and Technology, Texas A&M Health Science Center, Houston, Texas
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14
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Yu Z, An B, Ramshaw JA, Brodsky B. Bacterial collagen-like proteins that form triple-helical structures. J Struct Biol 2014; 186:451-61. [DOI: 10.1016/j.jsb.2014.01.003] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2013] [Revised: 01/09/2014] [Accepted: 01/09/2014] [Indexed: 02/06/2023]
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15
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Squeglia F, Bachert B, De Simone A, Lukomski S, Berisio R. The crystal structure of the streptococcal collagen-like protein 2 globular domain from invasive M3-type group A Streptococcus shows significant similarity to immunomodulatory HIV protein gp41. J Biol Chem 2013; 289:5122-33. [PMID: 24356966 DOI: 10.1074/jbc.m113.523597] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The arsenal of virulence factors deployed by streptococci includes streptococcal collagen-like (Scl) proteins. These proteins, which are characterized by a globular domain and a collagen-like domain, play key roles in host adhesion, host immune defense evasion, and biofilm formation. In this work, we demonstrate that the Scl2.3 protein is expressed on the surface of invasive M3-type strain MGAS315 of Streptococcus pyogenes. We report the crystal structure of Scl2.3 globular domain, the first of any Scl. This structure shows a novel fold among collagen trimerization domains of either bacterial or human origin. Despite there being low sequence identity, we observed that Scl2.3 globular domain structurally resembles the gp41 subunit of the envelope glycoprotein from human immunodeficiency virus type 1, an essential subunit for viral fusion to human T cells. We combined crystallographic data with modeling and molecular dynamics techniques to gather information on the entire lollipop-like Scl2.3 structure. Molecular dynamics data evidence a high flexibility of Scl2.3 with remarkable interdomain motions that are likely instrumental to the protein biological function in mediating adhesive or immune-modulatory functions in host-pathogen interactions. Altogether, our results provide molecular tools for the understanding of Scl-mediated streptococcal pathogenesis and important structural insights for the future design of small molecular inhibitors of streptococcal invasion.
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Affiliation(s)
- Flavia Squeglia
- From the Institute of Biostructures and Bioimaging, Consiglio Nazionale delle Ricerche, Via Mezzocannone 16, I-80134 Napoli, Italy
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16
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Price S, Anandan S. Characterization of a novel collagen-like protein TrpA in the cyanobacterium Trichodesmium erythraeum IMS101. JOURNAL OF PHYCOLOGY 2013; 49:758-764. [PMID: 27007208 DOI: 10.1111/jpy.12086] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 04/26/2013] [Indexed: 06/05/2023]
Abstract
The collagen protein family is diverse and its membership is continually expanding as new collagen-like molecules are identified. Identification of collagen in unicellular eukaryotes and prokaryotes has opened discussion on the function of these collagens and their role in the emergence of multicellularity. The previous identification of a collagen gene in Trichodesmium erythraeum raises the question of function of this structural protein in a prokaryote. In this study, we show that this gene is expressed during all phases of growth, indicating that it may be required for all phases of growth. Using immunofluorescence techniques, we demonstrate that the collagen-like protein is localized in a specific manner between adjacent cells along the trichome of T. erythraeum. Trichomes treated with the enzyme collagenase exhibited fragmentation, supporting our immunofluorescence localization data that this collagen-like protein is found between adjacent cells. Our data strongly suggest that the collagen-like protein found in T. erythraeum functions to maintain the structural integrity of the trichome through the adhesion of adjacent cells.
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Affiliation(s)
- Simara Price
- Department of Biology, Drexel University, 3245 Chestnut Street, Philadelphia, Pennsylvania, 19104, USA
| | - Shivanthi Anandan
- Department of Biology, Drexel University, 3245 Chestnut Street, Philadelphia, Pennsylvania, 19104, USA
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17
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Mizuno K, Boudko S, Engel J, Bächinger HP. Vascular Ehlers-Danlos syndrome mutations in type III collagen differently stall the triple helical folding. J Biol Chem 2013; 288:19166-76. [PMID: 23645670 DOI: 10.1074/jbc.m113.462002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Vascular Ehlers-Danlos syndrome (EDS) type IV is the most severe form of EDS. In many cases the disease is caused by a point mutation of Gly in type III collagen. A slower folding of the collagen helix is a potential cause for over-modifications. However, little is known about the rate of folding of type III collagen in patients with EDS. To understand the molecular mechanism of the effect of mutations, a system was developed for bacterial production of homotrimeric model polypeptides. The C-terminal quarter, 252 residues, of the natural human type III collagen was attached to (GPP)7 with the type XIX collagen trimerization domain (NC2). The natural collagen domain forms a triple helical structure without 4-hydroxylation of proline at a low temperature. At 33 °C, the natural collagenous part is denatured, but the C-terminal (GPP)7-NC2 remains intact. Switching to a low temperature triggers the folding of the type III collagen domain in a zipper-like fashion that resembles the natural process. We used this system for the two known EDS mutations (Gly-to-Val) in the middle at Gly-910 and at the C terminus at Gly-1018. In addition, wild-type and Gly-to-Ala mutants were made. The mutations significantly slow down the overall rate of triple helix formation. The effect of the Gly-to-Val mutation is much more severe compared with Gly-to-Ala. This is the first report on the folding of collagen with EDS mutations, which demonstrates local delays in the triple helix propagation around the mutated residue.
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Affiliation(s)
- Kazunori Mizuno
- Shriners Hospitals for Children Portland Research Center, Portland, Oregon 97239, USA
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18
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Hwang ES, Brodsky B. Folding delay and structural perturbations caused by type IV collagen natural interruptions and nearby Gly missense mutations. J Biol Chem 2012; 287:4368-75. [PMID: 22179614 PMCID: PMC3281714 DOI: 10.1074/jbc.m111.269084] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Revised: 11/29/2011] [Indexed: 11/06/2022] Open
Abstract
The standard collagen triple helix requires Gly as every third residue in the amino acid sequence, yet all nonfibrillar collagens contain sites where this repeating pattern is interrupted. To explore the effects of such natural interruptions on the triple helix, a 4- or 15-residue sequence from human basement membrane type IV collagen was introduced between (Gly-Xaa-Yaa)(n) domains within a recombinant bacterial collagen. The interruptions had little effect on melting temperature, consistent with the high thermal stability reported for nonfibrillar collagens. Although the 4-residue interruption cannot be accommodated within a standard triple helix, trypsin and thermolysin resistance indicated a tightly packed structure. Central residues of the 15-residue interruption were protease-susceptible, whereas residues near the (Gly-Xaa-Yaa)(n) boundary were resistant, supporting a transition from an alternate conformation to a well packed triple helix. Both interruptions led to a delay in triple-helix folding, with the 15-residue interruption causing slower folding than the 4-residue interruption. These results suggest that propagation through interruptions represents a slow folding step. To clarify the relation between natural interruptions and pathological mutations, a Gly to Ser missense mutation was placed three triplets away from the 4-residue interruption. As a result of this mutation, the 4-residue interruption and nearby triple helix became susceptible to protease digestion, and an additional folding delay was observed. Because Gly missense mutations that cause disease are often located near natural interruptions, structural and folding perturbations arising from such proximity could be a factor in collagen genetic diseases.
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Affiliation(s)
- Eileen S. Hwang
- From the Department of Biochemistry, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, Piscataway, New Jersey 08854 and
| | - Barbara Brodsky
- From the Department of Biochemistry, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, Piscataway, New Jersey 08854 and
- the Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155
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19
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Yoshizumi A, Fletcher JM, Yu Z, Persikov AV, Bartlett GJ, Boyle AL, Vincent TL, Woolfson DN, Brodsky B. Designed coiled coils promote folding of a recombinant bacterial collagen. J Biol Chem 2011; 286:17512-20. [PMID: 21454493 DOI: 10.1074/jbc.m110.217364] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Collagen triple helices fold slowly and inefficiently, often requiring adjacent globular domains to assist this process. In the Streptococcus pyogenes collagen-like protein Scl2, a V domain predicted to be largely α-helical, occurs N-terminal to the collagen triple helix (CL). Here, we replace this natural trimerization domain with a de novo designed, hyperstable, parallel, three-stranded, α-helical coiled coil (CC), either at the N terminus (CC-CL) or the C terminus (CL-CC) of the collagen domain. CD spectra of the constructs are consistent with additivity of independently and fully folded CC and CL domains, and the proteins retain their distinctive thermal stabilities, CL at ∼37 °C and CC at >90 °C. Heating the hybrid proteins to 50 °C unfolds CL, leaving CC intact, and upon cooling, the rate of CL refolding is somewhat faster for CL-CC than for CC-CL. A construct with coiled coils on both ends, CC-CL-CC, retains the ∼37 °C thermal stability for CL but shows less triple helix at low temperature and less denaturation at 50 °C. Most strikingly however, in CC-CL-CC, the CL refolds slower than in either CC-CL or CL-CC by almost two orders of magnitude. We propose that a single CC promotes folding of the CL domain via nucleation and in-register growth from one end, whereas initiation and growth from both ends in CC-CL-CC results in mismatched registers that frustrate folding. Bioinformatics analysis of natural collagens lends support to this because, where present, there is generally only one coiled-coil domain close to the triple helix, and it is nearly always N-terminal to the collagen repeat.
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Affiliation(s)
- Ayumi Yoshizumi
- Department of Biochemistry, University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School, Piscataway, New Jersey 08854, USA
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20
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Yu Z, Brodsky B, Inouye M. Dissecting a bacterial collagen domain from Streptococcus pyogenes: sequence and length-dependent variations in triple helix stability and folding. J Biol Chem 2011; 286:18960-8. [PMID: 21454494 DOI: 10.1074/jbc.m110.217422] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
To better investigate the relationship between sequence, stability, and folding, the Streptococcus pyogenes collagenous domain CL (Gly-Xaa-Yaa)(79) was divided to create three recombinant triple helix subdomains A, B, and C of almost equal size with distinctive amino acid features: an A domain high in polar residues, a B domain containing the highest concentration of Pro residues, and a very highly charged C domain. Each segment was expressed as a monomer, a linear dimer, and a linear trimer fused with the trimerization domain (V domain) in Escherichia coli. All recombinant proteins studied formed stable triple helical structures, but the stability varied depending on the amino acid sequence in the A, B, and C segments and increased as the triple helix got longer. V-AAA was found to melt at a much lower temperature (31.0 °C) than V-ABC (V-CL), whereas V-BBB melted at almost the same temperature (∼36-37 °C). When heat-denatured, the V domain enhanced refolding for all of the constructs; however, the folding rate was affected by their amino acid sequences and became reduced for longer constructs. The folding rates of all the other constructs were lower than that of the natural V-ABC protein. Amino acid substitution mutations at all Pro residues in the C fragment dramatically decreased stability but increased the folding rate. These results indicate that the thermostability of the bacterial collagen is dominated by the most stable domain in the same manner as found with eukaryotic collagens.
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Affiliation(s)
- Zhuoxin Yu
- Department of Biochemistry, Robert Wood Johnson Medical School, Piscataway, New Jersey 08854, USA
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21
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Cheng H, Rashid S, Yu Z, Yoshizumi A, Hwang E, Brodsky B. Location of glycine mutations within a bacterial collagen protein affects degree of disruption of triple-helix folding and conformation. J Biol Chem 2011; 286:2041-6. [PMID: 21071452 PMCID: PMC3023501 DOI: 10.1074/jbc.m110.153965] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 10/06/2010] [Indexed: 11/06/2022] Open
Abstract
The hereditary bone disorder osteogenesis imperfecta is often caused by missense mutations in type I collagen that change one Gly residue to a larger residue and that break the typical (Gly-Xaa-Yaa)(n) sequence pattern. Site-directed mutagenesis in a recombinant bacterial collagen system was used to explore the effects of the Gly mutation position and of the identity of the residue replacing Gly in a homogeneous collagen molecular population. Homotrimeric bacterial collagen proteins with a Gly-to-Arg or Gly-to-Ser replacement formed stable triple-helix molecules with a reproducible 2 °C decrease in stability. All Gly replacements led to a significant delay in triple-helix folding, but a more dramatic delay was observed when the mutation was located near the N terminus of the triple-helix domain. This highly disruptive mutation, close to the globular N-terminal trimerization domain where folding is initiated, is likely to interfere with triple-helix nucleation. A positional effect of mutations was also suggested by trypsin sensitivity for a Gly-to-Arg replacement close to the triple-helix N terminus but not for the same replacement near the center of the molecule. The significant impact of the location of a mutation on triple-helix folding and conformation could relate to the severe consequences of mutations located near the C terminus of type I and type III collagens, where trimerization occurs and triple-helix folding is initiated.
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Affiliation(s)
- Haiming Cheng
- From the Department of Biochemistry, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, Piscataway, New Jersey 08854
| | - Shayan Rashid
- From the Department of Biochemistry, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, Piscataway, New Jersey 08854
| | - Zhuoxin Yu
- From the Department of Biochemistry, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, Piscataway, New Jersey 08854
| | - Ayumi Yoshizumi
- From the Department of Biochemistry, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, Piscataway, New Jersey 08854
| | - Eileen Hwang
- From the Department of Biochemistry, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, Piscataway, New Jersey 08854
| | - Barbara Brodsky
- From the Department of Biochemistry, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, Piscataway, New Jersey 08854
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