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Sun Z, Hu H, Zhang X, Luan X, Xi Y, Wei G, Zhang X. Recent advances in peptide-based bioactive hydrogels for nerve repair and regeneration: from material design to fabrication, functional tailoring and applications. J Mater Chem B 2024; 12:2253-2273. [PMID: 38375592 DOI: 10.1039/d4tb00019f] [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: 02/21/2024]
Abstract
The injury of both central and peripheral nervous systems can result in neurological disorders and severe nervous diseases, which has been one of the challenges in the medical field. The use of peptide-based hydrogels for nerve repair and regeneration (NRR) provides a promising way for treating these problems, but the effects of the functions of peptide hydrogels on the NRR efficiency have been not understood clearly. In this review, we present recent advances in the material design, matrix fabrication, functional tailoring, and NRR applications of three types of peptide-based hydrogels, including pure peptide hydrogels, other component-functionalized peptide hydrogels, and peptide-modified polymer hydrogels. The case studies on the utilization of various peptide-based hydrogels for NRR are introduced and analyzed, in which the effects and mechanisms of the functions of hydrogels on NRR are illustrated specifically. In addition, the fabrication of medical NRR scaffolds and devices for pre-clinical application is demonstrated. Finally, we provide potential directions on the development of this promising topic. This comprehensive review could be valuable for readers to know the design and synthesis strategies of bioactive peptide hydrogels, as well as their functional tailoring, in order to promote their practical applications in tissue engineering, biomedical engineering, and materials science.
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Affiliation(s)
- Zhengang Sun
- Department of Spinal Surgery, Qingdao Huangdao Central Hospital, Qingdao University Medical Group, Qingdao 266555, P. R. China
- College of Chemistry and Chemical Engineering, Qingdao University, 266071 Qingdao, P. R. China.
- The Department of Plastic Surgery, Lanzhou University Second Hospital, Lanzhou University, Lanzhou 730030, P. R. China.
| | - Huiqiang Hu
- College of Chemistry and Chemical Engineering, Qingdao University, 266071 Qingdao, P. R. China.
- Department of Spinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266071, P. R. China.
| | - Xingchao Zhang
- Department of Spinal Surgery, Qingdao Huangdao Central Hospital, Qingdao University Medical Group, Qingdao 266555, P. R. China
| | - Xin Luan
- College of Chemistry and Chemical Engineering, Qingdao University, 266071 Qingdao, P. R. China.
| | - Yongming Xi
- Department of Spinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266071, P. R. China.
| | - Gang Wei
- College of Chemistry and Chemical Engineering, Qingdao University, 266071 Qingdao, P. R. China.
| | - Xuanfen Zhang
- The Department of Plastic Surgery, Lanzhou University Second Hospital, Lanzhou University, Lanzhou 730030, P. R. China.
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Tariq M, Khokhar R, Javed A, Usman M, Anjum SMM, Rasheed H, Bukhari NI, Yan C, Nawaz HA. Novel Hydrophilic Oligomer-Crosslinked Gelatin-Based Hydrogels for Biomedical Applications. Gels 2023; 9:564. [PMID: 37504443 PMCID: PMC10379017 DOI: 10.3390/gels9070564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/29/2023] Open
Abstract
Gelatin-based hydrogels have shown good injectability and biocompatibility and have been broadly used for drug delivery and tissue regeneration. However, their low mechanical strengths and fast degradation rates must be modified for long-term implantation applications. With an aim to develop mechanically stable hydrogels, reactive anhydride-based oligomers were developed and used to fabricate gelatin-based crosslinked hydrogels in this study. A cascade of hydrophilic oligomers containing reactive anhydride groups was synthesized by free radical polymerization. These oligomers varied in degree of reactivity, comonomer composition, and showed low molecular weights (Mn < 5 kDa). The reactive oligomers were utilized to fabricate hydrogels that differed in their mechanical strengths and degradation profiles. These formulations exhibited good cytocompatibility with human adipose tissue-derived stem cells (hADCs). In conclusion, the reactive MA-containing oligomers were successfully synthesized and utilized for the development of oligomer-crosslinked hydrogels. Such oligomer-crosslinked gelatin-based hydrogels hold promise as drug or cell carriers in various biomedical applications.
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Affiliation(s)
- Mamoona Tariq
- School of Pharmacy, Shanghai Jiao Tong University, Dongchuan Road 800, Minhang District, Shanghai 200240, China
| | - Rabia Khokhar
- Punjab University College of Pharmacy (PUCP), University of the Punjab, Lahore 54000, Pakistan
- Institute of Pharmaceutical Sciences (IPS), University of Veterinary & Animal Sciences (UVAS), Lahore 54000, Pakistan
| | - Arslan Javed
- Punjab University College of Pharmacy (PUCP), University of the Punjab, Lahore 54000, Pakistan
- Institute of Pharmaceutical Sciences (IPS), University of Veterinary & Animal Sciences (UVAS), Lahore 54000, Pakistan
| | - Muhammad Usman
- Institute of Pharmaceutical Sciences (IPS), University of Veterinary & Animal Sciences (UVAS), Lahore 54000, Pakistan
| | - Syed Muhammad Muneeb Anjum
- Institute of Pharmaceutical Sciences (IPS), University of Veterinary & Animal Sciences (UVAS), Lahore 54000, Pakistan
| | - Huma Rasheed
- Institute of Pharmaceutical Sciences (IPS), University of Veterinary & Animal Sciences (UVAS), Lahore 54000, Pakistan
| | - Nadeem Irfan Bukhari
- Punjab University College of Pharmacy (PUCP), University of the Punjab, Lahore 54000, Pakistan
| | - Chao Yan
- School of Pharmacy, Shanghai Jiao Tong University, Dongchuan Road 800, Minhang District, Shanghai 200240, China
| | - Hafiz Awais Nawaz
- Institute of Pharmaceutical Sciences (IPS), University of Veterinary & Animal Sciences (UVAS), Lahore 54000, Pakistan
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3
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Mineralizing Gelatin Microparticles as Cell Carrier and Drug Delivery System for siRNA for Bone Tissue Engineering. Pharmaceutics 2022; 14:pharmaceutics14030548. [PMID: 35335924 PMCID: PMC8949427 DOI: 10.3390/pharmaceutics14030548] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/24/2022] [Accepted: 02/25/2022] [Indexed: 11/19/2022] Open
Abstract
The local release of complexed siRNA from biomaterials opens precisely targeted therapeutic options. In this study, complexed siRNA was loaded to gelatin microparticles cross-linked (cGM) with an anhydride-containing oligomer (oPNMA). We aggregated these siRNA-loaded cGM with human mesenchymal stem cells (hMSC) to microtissues and stimulated them with osteogenic supplements. An efficient knockdown of chordin, a BMP-2 antagonist, caused a remarkably increased alkaline phosphatase (ALP) activity in the microtissues. cGM, as a component of microtissues, mineralized in a differentiation medium within 8–9 days, both in the presence and in the absence of cells. In order to investigate the effects of our pre-differentiated and chordin-silenced microtissues on bone homeostasis, we simulated in vivo conditions in an unstimulated co-culture system of hMSC and human peripheral blood mononuclear cells (hPBMC). We found enhanced ALP activity and osteoprotegerin (OPG) secretion in the model system compared to control microtissues. Our results suggest osteoanabolic effects of pre-differentiated and chordin-silenced microtissues.
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4
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Hinkelmann S, Springwald AH, Starke A, Kalwa H, Wölk C, Hacker MC, Schulz-Siegmund M. Microtissues from mesenchymal stem cells and siRNA-loaded cross-linked gelatin microparticles for bone regeneration. Mater Today Bio 2022; 13:100190. [PMID: 34988418 PMCID: PMC8693629 DOI: 10.1016/j.mtbio.2021.100190] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/20/2021] [Accepted: 12/11/2021] [Indexed: 12/13/2022] Open
Abstract
The aim of this study was the evaluation of cross-linked gelatin microparticles (cGM) as substrates for osteogenic cell culture to assemble 3D microtissues and their use as delivery system for siRNA to cells in these assemblies. In a 2D transwell cultivation system, we found that cGM are capable to accumulate calcium ions from the surrounding medium. Such a separation of cGM and SaOS-2 cells consequently led to a suppressed matrix mineral formation in the SaOS-2 culture on the well bottom of the transwell system. Thus, we decided to use cGM as component in 3D microtissues and get a close contact between calcium ion accumulating microparticles and cells to improve matrix mineralization. Gelatin microparticles were cross-linked with a N,N-diethylethylenediamine-derivatized (DEED) maleic anhydride (MA) containing oligo (pentaerythritol diacrylate monostearate-co-N-isopropylacrylamide-co-MA) (oPNMA) and aggregated with SaOS-2 or human mesenchymal stem cells (hMSC) to microtissue spheroids. We systematically varied the content of cGM in microtissues and observed cell differentiation and tissue formation. Microtissues were characterized by gene expression, ALP activity and matrix mineralization. Mineralization was detectable in microtissues with SaOS-2 cells after 7 days and with hMSC after 24–28 days in osteogenic culture. When we transfected hMSC via cGM loaded with Lipofectamine complexed chordin siRNA, we found increased ALP activity and accelerated mineral formation in microtissues in presence of BMP-2. As a model for positive paracrine effects that indicate promising in vivo effects of these microtissues, we incubated pre-differentiated microtissues with freshly seeded hMSC monolayers and found improved mineral formation all over the well in the co-culture model. These findings may support the concept of microtissues from hMSC and siRNA-loaded cGM for bone regeneration.
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Affiliation(s)
- Sandra Hinkelmann
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Germany
| | - Alexandra H Springwald
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Germany
| | - Annett Starke
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Germany
| | - Hermann Kalwa
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Faculty of Medicine, University of Leipzig, Leipzig, Germany
| | - Christian Wölk
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Germany
| | - Michael C Hacker
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Germany.,Institute of Pharmaceutics and Biopharmaceutics, Heinrich Heine University, Düsseldorf, Germany
| | - Michaela Schulz-Siegmund
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Germany
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Krieghoff J, Gronbach M, Schulz-Siegmund M, Hacker MC. Biodegradable macromers for implant bulk and surface engineering. Biol Chem 2021; 402:1357-1374. [PMID: 34433237 DOI: 10.1515/hsz-2021-0161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 08/09/2021] [Indexed: 11/15/2022]
Abstract
Macromers, polymeric molecules with at least two functional groups for cross-polymerization, are interesting materials to tailor mechanical, biochemical and degradative bulk and surface properties of implants for tissue regeneration. In this review we focus on macromers with at least one biodegradable building block. Manifold design options, such as choice of polymeric block(s), optional core molecule and reactive groups, as well as cross-co-polymerization with suitable anchor or linker molecules, allow the adaptation of macromer-based biomaterials towards specific application requirements in both hard and soft tissue regeneration. Implants can be manufactured from macromers using additive manufacturing as well as molding and templating approaches. This review summarizes and discusses the overall concept of biodegradable macromers and recent approaches for macromer processing into implants as well as techniques for surface modification directed towards bone regeneration. These aspects are reviewed including a focus on the authors' contributions to the field through research within the collaborative research project Transregio 67.
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Affiliation(s)
- Jan Krieghoff
- Medical Faculty, Pharmaceutical Technology, Leipzig University, Eilenburger Str. 15A, D-04317 Leipzig, Germany.,Collaborative Research Center (SFB-TRR67) "Functional Biomaterials for Controlling Healing Processes in Bone and Skin - From Material Science to Clinical Application", Leipzig and Dresden, Germany
| | - Mathis Gronbach
- Medical Faculty, Pharmaceutical Technology, Leipzig University, Eilenburger Str. 15A, D-04317 Leipzig, Germany.,Collaborative Research Center (SFB-TRR67) "Functional Biomaterials for Controlling Healing Processes in Bone and Skin - From Material Science to Clinical Application", Leipzig and Dresden, Germany
| | - Michaela Schulz-Siegmund
- Medical Faculty, Pharmaceutical Technology, Leipzig University, Eilenburger Str. 15A, D-04317 Leipzig, Germany.,Collaborative Research Center (SFB-TRR67) "Functional Biomaterials for Controlling Healing Processes in Bone and Skin - From Material Science to Clinical Application", Leipzig and Dresden, Germany
| | - Michael C Hacker
- Medical Faculty, Pharmaceutical Technology, Leipzig University, Eilenburger Str. 15A, D-04317 Leipzig, Germany.,Collaborative Research Center (SFB-TRR67) "Functional Biomaterials for Controlling Healing Processes in Bone and Skin - From Material Science to Clinical Application", Leipzig and Dresden, Germany.,Institute of Pharmaceutics and Biopharmaceutics, Heinrich Heine University, Universitätsstrasse 1, D-40225 Düsseldorf, Germany
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6
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Nawaz HA, Schröck K, Schmid M, Krieghoff J, Maqsood I, Kascholke C, Kohn-Polster C, Schulz-Siegmund M, Hacker MC. Injectable oligomer-cross-linked gelatine hydrogels via anhydride-amine-conjugation. J Mater Chem B 2021; 9:2295-2307. [PMID: 33616150 DOI: 10.1039/d0tb02861d] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Injectable gelatine-based hydrogels are valuable tools for drug and cell delivery due to their extracellular matrix-like properties that can be adjusted by the degree of cross-linking. We have established anhydride-containing oligomers for the cross-linking of gelatine via anhydride-amine-conjugation. So far, this conversion required conditions not compatible with cell encapsulation or in vivo injection. In order to overcome this limitation, we developed an array of quarter-oligomers varying in comonomer composition and contents of reactive anhydride units reactive towards amine groups under physiological conditions. The oligomers were of low molecular weight (Mn < 5 kDa) with a high degree of chemically intact anhydrides. Chemical comonomer composition was determined by 1H-NMR. Dissolutions experiments confirmed improved hydrophilicity of the synthesized oligomers over our established compositions. Injectable formulations are described utilizing cytocompatible concentrations of constituent materials and proton-scavenging base. Degree of cross-linking and stiffness of injectable hydrogels were controlled by composition. The gels hold promise as injectable drug or cell carrier and as bioink.
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Affiliation(s)
- Hafiz Awais Nawaz
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15 a, 04317 Leipzig, Germany and Institute of Pharmaceutical Sciences (IPS), University of Veterinary & Animal Sciences (UVAS), Abdul Qadir Jillani road, Lahore, Pakistan
| | - Kathleen Schröck
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15 a, 04317 Leipzig, Germany
| | - Maximilian Schmid
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15 a, 04317 Leipzig, Germany
| | - Jan Krieghoff
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15 a, 04317 Leipzig, Germany
| | - Iram Maqsood
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15 a, 04317 Leipzig, Germany
| | - Christian Kascholke
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15 a, 04317 Leipzig, Germany
| | - Caroline Kohn-Polster
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15 a, 04317 Leipzig, Germany
| | - Michaela Schulz-Siegmund
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15 a, 04317 Leipzig, Germany
| | - Michael C Hacker
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15 a, 04317 Leipzig, Germany and Institute of Pharmaceutics and Biopharmaceutics, Heinrich-Heine-Universität, Universitätsstraße 1, Düsseldorf, 40225 Düsseldorf, Germany.
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7
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Krieghoff J, Rost J, Kohn-Polster C, Müller BM, Koenig A, Flath T, Schulz-Siegmund M, Schulze FP, Hacker MC. Extrusion-Printing of Multi-Channeled Two-Component Hydrogel Constructs from Gelatinous Peptides and Anhydride-Containing Oligomers. Biomedicines 2021; 9:biomedicines9040370. [PMID: 33916295 PMCID: PMC8065526 DOI: 10.3390/biomedicines9040370] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/27/2021] [Accepted: 03/29/2021] [Indexed: 01/22/2023] Open
Abstract
The performance of artificial nerve guidance conduits (NGC) in peripheral nerve regeneration can be improved by providing structures with multiple small channels instead of a single wide lumen. 3D-printing is a strategy to access such multi-channeled structures in a defined and reproducible way. This study explores extrusion-based 3D-printing of two-component hydrogels from a single cartridge printhead into multi-channeled structures under aseptic conditions. The gels are based on a platform of synthetic, anhydride-containing oligomers for cross-linking of gelatinous peptides. Stable constructs with continuous small channels and a variety of footprints and sizes were successfully generated from formulations containing either an organic or inorganic gelation base. The adjustability of the system was investigated by varying the cross-linking oligomer and substituting the gelation bases controlling the cross-linking kinetics. Formulations with organic N-methyl-piperidin-3-ol and inorganic K2HPO4 yielded hydrogels with comparable properties after manual processing and extrusion-based 3D-printing. The slower reaction kinetics of formulations with K2HPO4 can be beneficial for extending the time frame for printing. The two-component hydrogels displayed both slow hydrolytic and activity-dependent enzymatic degradability. Together with satisfying in vitro cell proliferation data, these results indicate the suitability of our cross-linked hydrogels as multi-channeled NGC for enhanced peripheral nerve regeneration.
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Affiliation(s)
- Jan Krieghoff
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Eilenburger Straße 15a, 04317 Leipzig, Germany; (J.K.); (M.S.-S.)
| | - Johannes Rost
- Department of Mechanical and Energy Engineering, Leipzig University of Applied Sciences (HTWK Leipzig), Karl-Liebknecht-Straße 134, 04277 Leipzig, Germany; (T.F.); (F.-P.S.)
| | - Caroline Kohn-Polster
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Eilenburger Straße 15a, 04317 Leipzig, Germany; (J.K.); (M.S.-S.)
| | - Benno M. Müller
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Eilenburger Straße 15a, 04317 Leipzig, Germany; (J.K.); (M.S.-S.)
| | - Andreas Koenig
- Department of Prosthodontics and Materials Science, University of Leipzig, Liebigstraße 12, 04103 Leipzig, Germany;
| | - Tobias Flath
- Department of Mechanical and Energy Engineering, Leipzig University of Applied Sciences (HTWK Leipzig), Karl-Liebknecht-Straße 134, 04277 Leipzig, Germany; (T.F.); (F.-P.S.)
| | - Michaela Schulz-Siegmund
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Eilenburger Straße 15a, 04317 Leipzig, Germany; (J.K.); (M.S.-S.)
| | - Fritz-Peter Schulze
- Department of Mechanical and Energy Engineering, Leipzig University of Applied Sciences (HTWK Leipzig), Karl-Liebknecht-Straße 134, 04277 Leipzig, Germany; (T.F.); (F.-P.S.)
| | - Michael C. Hacker
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Eilenburger Straße 15a, 04317 Leipzig, Germany; (J.K.); (M.S.-S.)
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich Heine University, Universitätsstraße 1, 40225 Düsseldorf, Germany
- Correspondence: ; Tel.: +49-211-81-14220
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8
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Puertas-Bartolomé M, Włodarczyk-Biegun MK, del Campo A, Vázquez-Lasa B, San Román J. 3D Printing of a Reactive Hydrogel Bio-Ink Using a Static Mixing Tool. Polymers (Basel) 2020; 12:E1986. [PMID: 32878273 PMCID: PMC7564821 DOI: 10.3390/polym12091986] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/18/2020] [Accepted: 08/27/2020] [Indexed: 12/20/2022] Open
Abstract
Hydrogel-based bio-inks have recently attracted more attention for 3D printing applications in tissue engineering due to their remarkable intrinsic properties, such as a cell supporting environment. However, their usually weak mechanical properties lead to poor printability and low stability of the obtained structures. To obtain good shape fidelity, current approaches based on extrusion printing use high viscosity solutions, which can compromise cell viability. This paper presents a novel bio-printing methodology based on a dual-syringe system with a static mixing tool that allows in situ crosslinking of a two-component hydrogel-based ink in the presence of living cells. The reactive hydrogel system consists of carboxymethyl chitosan (CMCh) and partially oxidized hyaluronic acid (HAox) that undergo fast self-covalent crosslinking via Schiff base formation. This new approach allows us to use low viscosity solutions since in situ gelation provides the appropriate structural integrity to maintain the printed shape. The proposed bio-ink formulation was optimized to match crosslinking kinetics with the printing process and multi-layered 3D bio-printed scaffolds were successfully obtained. Printed scaffolds showed moderate swelling, good biocompatibility with embedded cells, and were mechanically stable after 14 days of the cell culture. We envision that this straightforward, powerful, and generalizable printing approach can be used for a wide range of materials, growth factors, or cell types, to be employed for soft tissue regeneration.
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Affiliation(s)
- María Puertas-Bartolomé
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; (M.P.-B.); (J.S.R.)
- CIBER’s Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Health Institute Carlos III, Monforte de Lemos 3-5, 28029 Madrid, Spain
| | | | - Aránzazu del Campo
- INM—Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany; (M.K.W.-B.); (A.d.C.)
- Chemistry Department, Saarland University, 66123 Saarbrücken, Germany
| | - Blanca Vázquez-Lasa
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; (M.P.-B.); (J.S.R.)
- CIBER’s Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Health Institute Carlos III, Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Julio San Román
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; (M.P.-B.); (J.S.R.)
- CIBER’s Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Health Institute Carlos III, Monforte de Lemos 3-5, 28029 Madrid, Spain
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9
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Sustained delivery of siRNA poly- and lipopolyplexes from porous macromer-crosslinked gelatin gels. Int J Pharm 2017; 526:178-187. [DOI: 10.1016/j.ijpharm.2017.04.065] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/25/2017] [Accepted: 04/26/2017] [Indexed: 01/15/2023]
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10
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Kohn-Polster C, Bhatnagar D, Woloszyn DJ, Richtmyer M, Starke A, Springwald AH, Franz S, Schulz-Siegmund M, Kaplan HM, Kohn J, Hacker MC. Dual-Component Gelatinous Peptide/Reactive Oligomer Formulations as Conduit Material and Luminal Filler for Peripheral Nerve Regeneration. Int J Mol Sci 2017; 18:E1104. [PMID: 28531139 PMCID: PMC5455012 DOI: 10.3390/ijms18051104] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 05/09/2017] [Accepted: 05/17/2017] [Indexed: 02/01/2023] Open
Abstract
Toward the next generation of nerve guidance conduits (NGCs), novel biomaterials and functionalization concepts are required to address clinical demands in peripheral nerve regeneration (PNR). As a biological polymer with bioactive motifs, gelatinous peptides are promising building blocks. In combination with an anhydride-containing oligomer, a dual-component hydrogel system (cGEL) was established. First, hollow cGEL tubes were fabricated by a continuous dosing and templating process. Conduits were characterized concerning their mechanical strength, in vitro and in vivo degradation and biocompatibility. Second, cGEL was reformulated as injectable shear thinning filler for established NGCs, here tyrosine-derived polycarbonate-based braided conduits. Thereby, the formulation contained the small molecule LM11A-31. The biofunctionalized cGEL filler was assessed regarding building block integration, mechanical properties, in vitro cytotoxicity, and growth permissive effects on human adipose tissue-derived stem cells. A positive in vitro evaluation motivated further application of the filler material in a sciatic nerve defect. Compared to the empty conduit and pristine cGEL, the functionalization performed superior, though the autologous nerve graft remains the gold standard. In conclusion, LM11A-31 functionalized cGEL filler with extracellular matrix (ECM)-like characteristics and specific biochemical cues holds great potential to support PNR.
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Affiliation(s)
- Caroline Kohn-Polster
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, 04317 Leipzig, Germany.
- Collaborative Research Center (SFB-TR67), Matrixengineering Leipzig and Dresden, Germany.
| | - Divya Bhatnagar
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, NJ 08854-8066, USA.
| | - Derek J Woloszyn
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, NJ 08854-8066, USA.
- Boston University School of Medicine, Boston University, Boston, MA 02118, USA.
| | - Matthew Richtmyer
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, NJ 08854-8066, USA.
| | - Annett Starke
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, 04317 Leipzig, Germany.
| | - Alexandra H Springwald
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, 04317 Leipzig, Germany.
| | - Sandra Franz
- Collaborative Research Center (SFB-TR67), Matrixengineering Leipzig and Dresden, Germany.
- Department of Dermatology, Venereology and Allergology of Medical Faculty of Leipzig University, 04317 Leipzig, Germany.
| | - Michaela Schulz-Siegmund
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, 04317 Leipzig, Germany.
- Collaborative Research Center (SFB-TR67), Matrixengineering Leipzig and Dresden, Germany.
| | - Hilton M Kaplan
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, NJ 08854-8066, USA.
| | - Joachim Kohn
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, NJ 08854-8066, USA.
| | - Michael C Hacker
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, 04317 Leipzig, Germany.
- Collaborative Research Center (SFB-TR67), Matrixengineering Leipzig and Dresden, Germany.
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11
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Kascholke C, Loth T, Kohn-Polster C, Möller S, Bellstedt P, Schulz-Siegmund M, Schnabelrauch M, Hacker MC. Dual-Functional Hydrazide-Reactive and Anhydride-Containing Oligomeric Hydrogel Building Blocks. Biomacromolecules 2017; 18:683-694. [PMID: 28125209 DOI: 10.1021/acs.biomac.6b01355] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Biomimetic hydrogels are advanced biomaterials that have been developed following different synthetic routes. Covalent postfabrication functionalization is a promising strategy to achieve efficient matrix modification decoupled of general material properties. To this end, dual-functional macromers were synthesized by free radical polymerization of maleic anhydride with diacetone acrylamide (N-(1,1-dimethyl-3-oxobutyl)acrylamide) and pentaerythritol diacrylate monostearate. Amphiphilic oligomers (Mn < 7.5 kDa) with anhydride contents of 7-20% offered cross-linking reactivity to yield rigid hydrogels with gelatinous peptides (E = 4-13 kPa) and good cell adhesion properties. Mildly reactive methyl ketones as second functionality remained intact during hydrogel formation and potential of covalent matrix modification was shown using hydrazide and hydrazine model compounds. Successful secondary dihydrazide cross-linking was demonstrated by an increase of hydrogel stiffness (>40%). Efficient hydrazide/hydrazine immobilization depending on solution pH, hydrogel ketone content as well as ligand concentration for bioconjugation was shown and reversibility of hydrazone formation was indicated by physiologically relevant hydrazide release over 7 days. Proof-of-concept experiments with hydrazido-functionalized hyaluronan demonstrated potential for covalent aECM immobilization. The presented dual-functional macromers have perspective as reactive hydrogel building blocks for various biomedical applications.
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Affiliation(s)
- Christian Kascholke
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University , Eilenburger Straße 15 a, 04317 Leipzig, Germany.,Collaborative Research Center (SFB/Transregio 67), Matrixengineering, Leipzig and Dresden, Germany
| | - Tina Loth
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University , Eilenburger Straße 15 a, 04317 Leipzig, Germany.,Collaborative Research Center (SFB/Transregio 67), Matrixengineering, Leipzig and Dresden, Germany
| | - Caroline Kohn-Polster
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University , Eilenburger Straße 15 a, 04317 Leipzig, Germany.,Collaborative Research Center (SFB/Transregio 67), Matrixengineering, Leipzig and Dresden, Germany
| | - Stephanie Möller
- Biomaterials Department, INNOVENT e.V. , Prüssingstraße 27 b, 07745 Jena, Germany.,Collaborative Research Center (SFB/Transregio 67), Matrixengineering, Leipzig and Dresden, Germany
| | - Peter Bellstedt
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich-Schiller University Jena , Humboldtstraße 10, 07743 Jena, Germany
| | - Michaela Schulz-Siegmund
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University , Eilenburger Straße 15 a, 04317 Leipzig, Germany.,Collaborative Research Center (SFB/Transregio 67), Matrixengineering, Leipzig and Dresden, Germany
| | - Matthias Schnabelrauch
- Biomaterials Department, INNOVENT e.V. , Prüssingstraße 27 b, 07745 Jena, Germany.,Collaborative Research Center (SFB/Transregio 67), Matrixengineering, Leipzig and Dresden, Germany
| | - Michael C Hacker
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University , Eilenburger Straße 15 a, 04317 Leipzig, Germany.,Collaborative Research Center (SFB/Transregio 67), Matrixengineering, Leipzig and Dresden, Germany
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