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Mahmoudi N, Roque M, Paiva Dos Santos B, Oliveira H, Siadous R, Rey S, Garanger E, Lecommandoux S, Catros S, Garbay B, Amédée Vilamitjana J. An Elastin-Derived Composite Matrix for Enhanced Vascularized and Innervated Bone Tissue Reconstruction: From Material Development to Preclinical Evaluation. Adv Healthc Mater 2024; 13:e2303765. [PMID: 38651610 DOI: 10.1002/adhm.202303765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 03/28/2024] [Indexed: 04/25/2024]
Abstract
Despite progress in bone tissue engineering, reconstruction of large bone defects remains an important clinical challenge. Here, a biomaterial designed to recruit bone cells, endothelial cells, and neuronal fibers within the same matrix is developed, enabling bone tissue regeneration. The bioactive matrix is based on modified elastin-like polypeptides (ELPs) grafted with laminin-derived adhesion peptides IKVAV and YIGSR, and the SNA15 peptide for retention of hydroxyapatite (HA) particles. The composite matrix shows suitable porosity, interconnectivity, biocompatibility for endothelial cells, and the ability to support neurites outgrowth by sensory neurons. Subcutaneous implantation leads to the formation of osteoid tissue, characterized by the presence of bone cells, vascular networks, and neuronal structures, while minimizing inflammation. Using a rat femoral condyle defect model, longitudinal micro-CT analysis is performed, which demonstrates a significant increase in the volume of mineralized tissue when using the ELP-based matrix compared to empty defects and a commercially available control (Collapat). Furthermore, visible blood vessel networks and nerve fibers are observed within the lesions after a period of two weeks. By incorporating multiple key components that support cell growth, mineralization, and tissue integration, this ELP-based composite matrix provides a holistic and versatile solution to enhance bone tissue regeneration.
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Affiliation(s)
- Nadia Mahmoudi
- Tissue Bioengineering Laboratory (BioTis), Inserm U1026, University of Bordeaux, Bordeaux, France
| | - Micaela Roque
- Tissue Bioengineering Laboratory (BioTis), Inserm U1026, University of Bordeaux, Bordeaux, France
| | - Bruno Paiva Dos Santos
- Tissue Bioengineering Laboratory (BioTis), Inserm U1026, University of Bordeaux, Bordeaux, France
| | - Hugo Oliveira
- Tissue Bioengineering Laboratory (BioTis), Inserm U1026, University of Bordeaux, Bordeaux, France
| | - Robin Siadous
- Tissue Bioengineering Laboratory (BioTis), Inserm U1026, University of Bordeaux, Bordeaux, France
| | - Sylvie Rey
- Tissue Bioengineering Laboratory (BioTis), Inserm U1026, University of Bordeaux, Bordeaux, France
| | | | | | - Sylvain Catros
- CHU Bordeaux, Dentistry and Oral Health Department, Bordeaux, 33076, France
| | - Bertrand Garbay
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR, Pessac, 5629, France
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Pascouau C, Schweitzer M, Besenius P. Supramolecular Assembly and Thermogelation Strategies Using Peptide-Polymer Conjugates. Biomacromolecules 2024; 25:2659-2678. [PMID: 38663862 PMCID: PMC11095398 DOI: 10.1021/acs.biomac.4c00031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 05/14/2024]
Abstract
Peptide-polymer conjugates (PPCs) are of particular interest in the development of responsive, adaptive, and interactive materials due to the benefits offered by combining both building blocks and components. This review presents pioneering work as well as recent advances in the design of peptide-polymer conjugates, with a specific focus on their thermoresponsive behavior. This unique class of materials has shown great promise in the development of supramolecular structures with physicochemical properties that are modulated using soft and biorthogonal external stimuli. The temperature-induced self-assembly of PPCs into various supramolecular architectures, gelation processes, and tuning of accessible processing parameters to biologically relevant temperature windows are described. The discussion covers the chemical design of the conjugates, the supramolecular driving forces involved, and the mutual influence of the polymer and peptide segments. Additionally, some selected examples for potential biomedical applications of thermoresponsive PPCs in tissue engineering, delivery systems, tumor therapy, and biosensing are highlighted, as well as perspectives on future challenges.
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Affiliation(s)
- Chloé Pascouau
- Department of Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 1014, D-55128 Mainz, Germany
| | - Maren Schweitzer
- Department of Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 1014, D-55128 Mainz, Germany
| | - Pol Besenius
- Department of Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 1014, D-55128 Mainz, Germany
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Levêque M, Lecommandoux S, Garanger E. Thermoresponsive Core-cross-linked Nanoparticles from HA- b-ELP Diblock Copolymers. Biomacromolecules 2024; 25:3011-3017. [PMID: 38689515 DOI: 10.1021/acs.biomac.4c00137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Stabilization against the dilution-dependent disassembly of self-assembled nanoparticles is a requirement for in vivo application. Herein, we propose a simple and biocompatible cross-linking reaction for the stabilization of a series of nanoparticles formed by the self-assembly of amphiphilic HA-b-ELP block copolymers, through the alkylation of methionine residues from the ELP block with diglycidyl ether compounds. The core-cross-linked nanoparticles retain their colloidal properties, with a spherical core-shell morphology, while maintaining thermoresponsive behavior. As such, instead of a reversible disassembly when non-cross-linked, a reversible swelling of nanoparticles' core and increase of hydrodynamic diameter are observed with lowering of the temperature.
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Affiliation(s)
- Manon Levêque
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac F-33600, France
| | | | - Elisabeth Garanger
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac F-33600, France
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Grazon C, Garanger E, Lalanne P, Ibarboure E, Galagan JE, Grinstaff MW, Lecommandoux S. Transcription-Factor-Induced Aggregation of Biomimetic Oligonucleotide- b-Protein Micelles. Biomacromolecules 2023; 24:5027-5034. [PMID: 37877162 DOI: 10.1021/acs.biomac.3c00662] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Polymeric micelles and especially those based on natural diblocks are of particular interest due to their advantageous properties in terms of molecular recognition, biocompatibility, and biodegradability. We herein report a facile and straightforward synthesis of thermoresponsive elastin-like polypeptide (ELP) and oligonucleotide (ON) diblock bioconjugates, ON-b-ELP, through copper-catalyzed azide-alkyne cycloaddition. The resulting thermosensitive diblock copolymer self-assembles above its critical micelle temperature (CMT ∼30 °C) to form colloidally stable micelles of ∼50 nm diameter. The ON-b-ELP micelles hybridize with an ON complementary strand and maintain their size and stability. Next, we describe the capacity of these micelles to bind proteins, creating more complex structures using the classic biotin-streptavidin pairing and the specific recognition between a transcription factor protein and the ON strand. In both instances, the micelles are intact, form larger structures, and retain their sensitivity to temperature.
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Affiliation(s)
- Chloé Grazon
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, Talence F-33400, France
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac F-33600, France
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Elisabeth Garanger
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac F-33600, France
| | - Pierre Lalanne
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac F-33600, France
| | - Emmanuel Ibarboure
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac F-33600, France
| | - James E Galagan
- Department of Microbiology, Boston University, Boston, Massachusetts 02118, United States
| | - Mark W Grinstaff
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
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Garanger E, Lecommandoux S. Emerging opportunities in bioconjugates of Elastin-like polypeptides with synthetic or natural polymers. Adv Drug Deliv Rev 2022; 191:114589. [PMID: 36323382 DOI: 10.1016/j.addr.2022.114589] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 10/10/2022] [Accepted: 10/24/2022] [Indexed: 01/24/2023]
Abstract
Nature is an everlasting source of inspiration for chemical and polymer scientists seeking to develop ever more innovative materials with greater performances. Natural structural proteins are particularly scrutinized to design biomimetic materials. Often characterized by repeat peptide sequences, that together interact by inter- and intramolecular interactions and form a 3D skeleton, they contribute to the mechanical properties of individual cells, tissues, organs, and whole organisms. (Numata, K. Polymer Journal 2020, 52, 1043-1056) Among them elastin, and its main repeat sequences, have been a source of intense studies for more than 50 years resulting in the specific research field dedicated to elastin-like polypeptides (ELPs). These are currently widely investigated in different applications, namely protein purification, tissue engineering, and drug delivery, and some technologies based on ELPs are currently explored by several start-up companies. In the present review, we have summarized pioneering contributions on ELPs, progress made in their genetic engineering, and understanding of their thermal behavior and self-assembly properties. Considered as intrinsically disordered protein polymers, we have finally focused on the works where ELPs have been conjugated to other synthetic macromolecules as covalent hybrid, statistical, graft, or block copolymers, highlighting the huge opportunities that have still not been explored so far.
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Affiliation(s)
- Elisabeth Garanger
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, ENSCBP, 16 Avenue Pey-Berland, Pessac F-33600, France.
| | - Sébastien Lecommandoux
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, ENSCBP, 16 Avenue Pey-Berland, Pessac F-33600, France.
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