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Ghafoor MH, Song BL, Zhou L, Qiao ZY, Wang H. Self-Assembly of Peptides as an Alluring Approach toward Cancer Treatment and Imaging. ACS Biomater Sci Eng 2024; 10:2841-2862. [PMID: 38644736 DOI: 10.1021/acsbiomaterials.4c00491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Cancer is a severe threat to humans, as it is the second leading cause of death after cardiovascular diseases and still poses the biggest challenge in the world of medicine. Due to its higher mortality rates and resistance, it requires a more focused and productive approach to provide the solution for it. Many therapies promising to deliver favorable results, such as chemotherapy and radiotherapy, have come up with more negatives than positives. Therefore, a new class of medicinal solutions and a more targeted approach is of the essence. This review highlights the alluring properties, configurations, and self-assembly of peptide molecules which benefit the traditional approach toward cancer therapy while sparing the healthy cells in the process. As targeted drug delivery systems, self-assembled peptides offer a wide spectrum of conjugation, biocompatibility, degradability-controlled responsiveness, and biomedical applications, including cancer treatment and cancer imaging.
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Affiliation(s)
- Muhammad Hamza Ghafoor
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Ben-Li Song
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Lei Zhou
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
| | - Zeng-Ying Qiao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Hao Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
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2
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Doulames VM, Marquardt LM, Hefferon ME, Baugh NJ, Suhar RA, Wang AT, Dubbin KR, Weimann JM, Palmer TD, Plant GW, Heilshorn SC. Custom-engineered hydrogels for delivery of human iPSC-derived neurons into the injured cervical spinal cord. Biomaterials 2024; 305:122400. [PMID: 38134472 PMCID: PMC10846596 DOI: 10.1016/j.biomaterials.2023.122400] [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: 06/23/2023] [Revised: 09/18/2023] [Accepted: 11/11/2023] [Indexed: 12/24/2023]
Abstract
Cervical damage is the most prevalent type of spinal cord injury clinically, although few preclinical research studies focus on this anatomical region of injury. Here we present a combinatorial therapy composed of a custom-engineered, injectable hydrogel and human induced pluripotent stem cell (iPSC)-derived deep cortical neurons. The biomimetic hydrogel has a modular design that includes a protein-engineered component to allow customization of the cell-adhesive peptide sequence and a synthetic polymer component to allow customization of the gel mechanical properties. In vitro studies with encapsulated iPSC-neurons were used to select a bespoke hydrogel formulation that maintains cell viability and promotes neurite extension. Following injection into the injured cervical spinal cord in a rat contusion model, the hydrogel biodegraded over six weeks without causing any adverse reaction. Compared to cell delivery using saline, the hydrogel significantly improved the reproducibility of cell transplantation and integration into the host tissue. Across three metrics of animal behavior, this combinatorial therapy significantly improved sensorimotor function by six weeks post transplantation. Taken together, these findings demonstrate that design of a combinatorial therapy that includes a gel customized for a specific fate-restricted cell type can induce regeneration in the injured cervical spinal cord.
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Affiliation(s)
- V M Doulames
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - L M Marquardt
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - M E Hefferon
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - N J Baugh
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - R A Suhar
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - A T Wang
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - K R Dubbin
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - J M Weimann
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - T D Palmer
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - G W Plant
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, 94305, USA.
| | - S C Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
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3
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Sreedevi Madhavikutty A, Singh Chandel AK, Tsai CC, Inagaki NF, Ohta S, Ito T. pH responsive cationic guar gum-borate self-healing hydrogels for muco-adhesion. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2023; 24:2175586. [PMID: 36896456 PMCID: PMC9990695 DOI: 10.1080/14686996.2023.2175586] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/22/2023] [Accepted: 01/29/2023] [Indexed: 06/08/2023]
Abstract
We developed a new muco-adhesive hydrogel composed of cationic guar gum (CGG) and boric acid (BA). The CGG-BA precursor solution of 0.5-2% w/v concentration exhibited fluidity at low pH (3-5), while gelation occurred within 1 min at physiological pH (7-8) conditions. Scanning electron microscopy and Fourier-transform infrared spectroscopy results confirmed the change in physical and chemical behavior, respectively, with change in pH. The pH-responsive self-healing ability was analyzed through microscopy and rheology. CGG-BA hydrogels showed good self-healing property at pH 7.4. The in vitro biocompatibility test of the hydrogel studied using NIH3T3 and NHEK cells showed that it was non-toxic at concentrations of CGG-BA below 2% w/v. Ex vivo mucoadhesive tests confirmed the hydrogel's potential for use as a muco-adhesive. Burst pressure tests were conducted using pig esophageal mucosa and the results showed that at pH 7.4, 1% w/v CGG-BA self-healable hydrogel resisted about 8 ± 2 kPa pressure, comparable to that of Fibrin glue. This was higher than that at solution (pH 5) and brittle gel (pH 10) conditions. To confirm the good adhesive strength of the self-healable hydrogels, lap shear tests conducted, resulted in adhesive strengths measured in the range of 1.0 ± 0.5-2.0 ± 0.6 kPa, which was also comparable to fibrin glue control 1.8 ± 0.6 kPa. Hydrogel weight measurements showed that 40-80% gel lasted under physiological conditions for 10 h. The results suggest that CGG-BA hydrogel has potential as a pH responsive mucosal protectant biomaterial.
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Affiliation(s)
| | - Arvind K. Singh Chandel
- Center for Disease Biology and Integrative Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Ching-Cheng Tsai
- Department of Bioengineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Natsuko F. Inagaki
- Center for Disease Biology and Integrative Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Seiichi Ohta
- Department of Chemical System Engineering, The University of Tokyo, Tokyo 113-8656, Japan
- Department of Bioengineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Taichi Ito
- Department of Chemical System Engineering, The University of Tokyo, Tokyo 113-8656, Japan
- Center for Disease Biology and Integrative Medicine, The University of Tokyo, Tokyo 113-0033, Japan
- Department of Bioengineering, The University of Tokyo, Tokyo 113-8656, Japan
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4
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Sedighi M, Shrestha N, Mahmoudi Z, Khademi Z, Ghasempour A, Dehghan H, Talebi SF, Toolabi M, Préat V, Chen B, Guo X, Shahbazi MA. Multifunctional Self-Assembled Peptide Hydrogels for Biomedical Applications. Polymers (Basel) 2023; 15:polym15051160. [PMID: 36904404 PMCID: PMC10007692 DOI: 10.3390/polym15051160] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 03/02/2023] Open
Abstract
Self-assembly is a growth mechanism in nature to apply local interactions forming a minimum energy structure. Currently, self-assembled materials are considered for biomedical applications due to their pleasant features, including scalability, versatility, simplicity, and inexpensiveness. Self-assembled peptides can be applied to design and fabricate different structures, such as micelles, hydrogels, and vesicles, by diverse physical interactions between specific building blocks. Among them, bioactivity, biocompatibility, and biodegradability of peptide hydrogels have introduced them as versatile platforms in biomedical applications, such as drug delivery, tissue engineering, biosensing, and treating different diseases. Moreover, peptides are capable of mimicking the microenvironment of natural tissues and responding to internal and external stimuli for triggered drug release. In the current review, the unique characteristics of peptide hydrogels and recent advances in their design, fabrication, as well as chemical, physical, and biological properties are presented. Additionally, recent developments of these biomaterials are discussed with a particular focus on their biomedical applications in targeted drug delivery and gene delivery, stem cell therapy, cancer therapy and immune regulation, bioimaging, and regenerative medicine.
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Affiliation(s)
- Mahsa Sedighi
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Birjand University of Medical Sciences, Birjand 9717853076, Iran
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand 9717853076, Iran
| | - Neha Shrestha
- Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, Université Catholique de Louvain, 1200 Brussels, Belgium
- Department of Biomedicine and Translational Research, Research Institute for Bioscience and Biotechnology, Kathmandu P.O. Box 7731, Nepal
| | - Zahra Mahmoudi
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan 6517838636, Iran
| | - Zahra Khademi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
| | - Alireza Ghasempour
- Student Research Committee, Birjand University of Medical Sciences, Birjand 9717853076, Iran
| | - Hamideh Dehghan
- Student Research Committee, Birjand University of Medical Sciences, Birjand 9717853076, Iran
| | - Seyedeh Fahimeh Talebi
- Student Research Committee, Birjand University of Medical Sciences, Birjand 9717853076, Iran
| | - Maryam Toolabi
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Véronique Préat
- Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Bozhi Chen
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xindong Guo
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Correspondence: (X.G.); (M.-A.S.)
| | - Mohammad-Ali Shahbazi
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
- W.J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
- Correspondence: (X.G.); (M.-A.S.)
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5
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Sperle K, Pochan DJ, Langhans SA. 3D Hydrogel Cultures for High-Throughput Drug Discovery. Methods Mol Biol 2023; 2614:369-381. [PMID: 36587136 PMCID: PMC10786336 DOI: 10.1007/978-1-0716-2914-7_22] [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] [Indexed: 01/02/2023]
Abstract
Our increased understanding of how a cell's microenvironment influences its behavior has fueled an interest in three-dimensional (3D) cell cultures for drug discovery. Particularly, scaffold-based 3D cultures are expected to recapitulate in vivo tissue stiffness and extracellular matrix composition more accurately than standard two-dimensional (2D) monolayer cultures. Here we present a 3D hydrogel cell culture setup suitable for automated screening with standard high-throughput screening (HTS) liquid handling equipment commonly found in a drug discovery laboratory. Further, we describe the steps required to validate the assay system for compound screening.
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Affiliation(s)
- Karen Sperle
- Nemours Biomedical Research, Nemours Children's Hospital - Delaware, Wilmington, DE, USA
| | - Darrin J Pochan
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, USA
| | - Sigrid A Langhans
- Nemours Biomedical Research, Nemours Children's Hospital - Delaware, Wilmington, DE, USA.
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6
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Ahmadi M, Nicolella P, Seiffert S. Network Percolation in Transient Polymer Networks with Temporal Hierarchy of Energy Dissipation. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mostafa Ahmadi
- Department of Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Paola Nicolella
- Department of Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Sebastian Seiffert
- Department of Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
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7
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Bertsch P, Diba M, Mooney DJ, Leeuwenburgh SCG. Self-Healing Injectable Hydrogels for Tissue Regeneration. Chem Rev 2022; 123:834-873. [PMID: 35930422 PMCID: PMC9881015 DOI: 10.1021/acs.chemrev.2c00179] [Citation(s) in RCA: 182] [Impact Index Per Article: 91.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Biomaterials with the ability to self-heal and recover their structural integrity offer many advantages for applications in biomedicine. The past decade has witnessed the rapid emergence of a new class of self-healing biomaterials commonly termed injectable, or printable in the context of 3D printing. These self-healing injectable biomaterials, mostly hydrogels and other soft condensed matter based on reversible chemistry, are able to temporarily fluidize under shear stress and subsequently recover their original mechanical properties. Self-healing injectable hydrogels offer distinct advantages compared to traditional biomaterials. Most notably, they can be administered in a locally targeted and minimally invasive manner through a narrow syringe without the need for invasive surgery. Their moldability allows for a patient-specific intervention and shows great prospects for personalized medicine. Injected hydrogels can facilitate tissue regeneration in multiple ways owing to their viscoelastic and diffusive nature, ranging from simple mechanical support, spatiotemporally controlled delivery of cells or therapeutics, to local recruitment and modulation of host cells to promote tissue regeneration. Consequently, self-healing injectable hydrogels have been at the forefront of many cutting-edge tissue regeneration strategies. This study provides a critical review of the current state of self-healing injectable hydrogels for tissue regeneration. As key challenges toward further maturation of this exciting research field, we identify (i) the trade-off between the self-healing and injectability of hydrogels vs their physical stability, (ii) the lack of consensus on rheological characterization and quantitative benchmarks for self-healing injectable hydrogels, particularly regarding the capillary flow in syringes, and (iii) practical limitations regarding translation toward therapeutically effective formulations for regeneration of specific tissues. Hence, here we (i) review chemical and physical design strategies for self-healing injectable hydrogels, (ii) provide a practical guide for their rheological analysis, and (iii) showcase their applicability for regeneration of various tissues and 3D printing of complex tissues and organoids.
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Affiliation(s)
- Pascal Bertsch
- Department
of Dentistry-Regenerative Biomaterials, Radboud Institute for Molecular
Life Sciences, Radboud University Medical
Center, 6525 EX Nijmegen, The Netherlands
| | - Mani Diba
- Department
of Dentistry-Regenerative Biomaterials, Radboud Institute for Molecular
Life Sciences, Radboud University Medical
Center, 6525 EX Nijmegen, The Netherlands,John
A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States,Wyss
Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts 02115, United States
| | - David J. Mooney
- John
A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States,Wyss
Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts 02115, United States
| | - Sander C. G. Leeuwenburgh
- Department
of Dentistry-Regenerative Biomaterials, Radboud Institute for Molecular
Life Sciences, Radboud University Medical
Center, 6525 EX Nijmegen, The Netherlands,
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8
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Hong IS. Enhancing Stem Cell-Based Therapeutic Potential by Combining Various Bioengineering Technologies. Front Cell Dev Biol 2022; 10:901661. [PMID: 35865629 PMCID: PMC9294278 DOI: 10.3389/fcell.2022.901661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/17/2022] [Indexed: 12/05/2022] Open
Abstract
Stem cell-based therapeutics have gained tremendous attention in recent years due to their wide range of applications in various degenerative diseases, injuries, and other health-related conditions. Therapeutically effective bone marrow stem cells, cord blood- or adipose tissue-derived mesenchymal stem cells (MSCs), embryonic stem cells (ESCs), and more recently, induced pluripotent stem cells (iPSCs) have been widely reported in many preclinical and clinical studies with some promising results. However, these stem cell-only transplantation strategies are hindered by the harsh microenvironment, limited cell viability, and poor retention of transplanted cells at the sites of injury. In fact, a number of studies have reported that less than 5% of the transplanted cells are retained at the site of injury on the first day after transplantation, suggesting extremely low (<1%) viability of transplanted cells. In this context, 3D porous or fibrous national polymers (collagen, fibrin, hyaluronic acid, and chitosan)-based scaffold with appropriate mechanical features and biocompatibility can be used to overcome various limitations of stem cell-only transplantation by supporting their adhesion, survival, proliferation, and differentiation as well as providing elegant 3-dimensional (3D) tissue microenvironment. Therefore, stem cell-based tissue engineering using natural or synthetic biomimetics provides novel clinical and therapeutic opportunities for a number of degenerative diseases or tissue injury. Here, we summarized recent studies involving various types of stem cell-based tissue-engineering strategies for different degenerative diseases. We also reviewed recent studies for preclinical and clinical use of stem cell-based scaffolds and various optimization strategies.
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Affiliation(s)
- In-Sun Hong
- Department of Health Sciences and Technology, GAIHST, Gachon University, Seongnam, South Korea
- Department of Molecular Medicine, School of Medicine, Gachon University, Seongnam, South Korea
- *Correspondence: In-Sun Hong,
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Xu Y, Gaillez MP, Zheng K, Voigt D, Cui M, Kurth T, Xiao L, Rothe R, Hauser S, Lee PW, Wieduwild R, Lin W, Bornhäuser M, Pietzsch J, Boccaccini AR, Zhang Y. A Self-Assembled Matrix System for Cell-Bioengineering Applications in Different Dimensions, Scales, and Geometries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2104758. [PMID: 35132776 DOI: 10.1002/smll.202104758] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 12/30/2021] [Indexed: 06/14/2023]
Abstract
Stem cell bioengineering and therapy require different model systems and materials in different stages of development. If a chemically defined biomatrix system can fulfill most tasks, it can minimize the discrepancy among various setups. By screening biomaterials synthesized through a coacervation-mediated self-assembling mechanism, a biomatrix system optimal for 2D human mesenchymal stromal cell (hMSC) culture and osteogenesis is identified. Its utility for hMSC bioengineering is further demonstrated in coating porous bioactive glass scaffolds and nanoparticle synthesis for esiRNA delivery to knock down the SOX-9 gene with high delivery efficiency. The self-assembled injectable system is further utilized for 3D cell culture, segregated co-culture of hMSC with human umbilical vein endothelial cells (HUVEC) as an angiogenesis model, and 3D bioprinting. Most interestingly, the coating of bioactive glass with the self-assembled biomatrix not only supports the proliferation and osteogenesis of hMSC in the 3D scaffold but also induces the amorphous bioactive glass (BG) scaffold surface to form new apatite crystals resembling bone-shaped plate structures. Thus, the self-assembled biomatrix system can be utilized in various dimensions, scales, and geometries for many different bioengineering applications.
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Affiliation(s)
- Yong Xu
- B CUBE Center for Molecular Bioengineering, Technische Universität Dresden, 01307, Dresden, Germany
| | - Michelle Patino Gaillez
- B CUBE Center for Molecular Bioengineering, Technische Universität Dresden, 01307, Dresden, Germany
| | - Kai Zheng
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058, Erlangen, Germany
| | - Dagmar Voigt
- Institute of Botany, Faculty of Biology, Technische Universität Dresden, 01062, Dresden, Germany
| | - Meiying Cui
- B CUBE Center for Molecular Bioengineering, Technische Universität Dresden, 01307, Dresden, Germany
| | - Thomas Kurth
- Technische Universität Dresden, Center for Molecular and Cellular Bioengineering (CMCB), Technology Platform, EM Facilty, 01307, Dresden, Germany
| | - Lingfei Xiao
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China
| | - Rebecca Rothe
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiopharmaceutical Cancer Research Department of Radiopharmaceutical and Chemical Biology, 01328, Dresden, Germany
- Technische Universität Dresden, School of Science, Faculty of Chemistry and Food Chemistry, 01062, Dresden, Germany
| | - Sandra Hauser
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiopharmaceutical Cancer Research Department of Radiopharmaceutical and Chemical Biology, 01328, Dresden, Germany
| | - Pao-Wan Lee
- B CUBE Center for Molecular Bioengineering, Technische Universität Dresden, 01307, Dresden, Germany
| | - Robert Wieduwild
- B CUBE Center for Molecular Bioengineering, Technische Universität Dresden, 01307, Dresden, Germany
| | - Weilin Lin
- B CUBE Center for Molecular Bioengineering, Technische Universität Dresden, 01307, Dresden, Germany
| | - Martin Bornhäuser
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Fetscherstraße 105, 01307, Dresden, Germany
- University Hospital Carl Gustav Carus der Technischen Universität Dresden, Medizinische Klinik und Poliklinik I, Fetscherstraße 74, 01307, Dresden, Germany
| | - Jens Pietzsch
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiopharmaceutical Cancer Research Department of Radiopharmaceutical and Chemical Biology, 01328, Dresden, Germany
- Technische Universität Dresden, School of Science, Faculty of Chemistry and Food Chemistry, 01062, Dresden, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058, Erlangen, Germany
| | - Yixin Zhang
- B CUBE Center for Molecular Bioengineering, Technische Universität Dresden, 01307, Dresden, Germany
- Cluster of Excellence Physics of Life, Technische Universität Dresden, 01062, Dresden, Germany
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10
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Strauß S, Schroth B, Hubbuch J. Evaluation of the Reproducibility and Robustness of Extrusion-Based Bioprinting Processes Applying a Flow Sensor. Front Bioeng Biotechnol 2022; 10:831350. [PMID: 35309988 PMCID: PMC8927775 DOI: 10.3389/fbioe.2022.831350] [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: 12/08/2021] [Accepted: 01/17/2022] [Indexed: 11/13/2022] Open
Abstract
Bioprinting is increasingly regarded as a suitable additive manufacturing method in biopharmaceutical process development and formulation. In order to manage the leap from research to industrial application, higher levels of reproducibility and a standardized bioprinting process are prerequisites. This said, the concept of process analytical technologies, standard in the biopharmaceutical industry, is still at its very early steps. To date most extrusion-based printing processes are controlled over penumatic pressure and thus not adaptive to environmental or system related changes over several experimental runs. A constant set pressure applied over a number of runs, might lead to variations in flow rate and thus to unreliable printed constructs. With this in mind, the simple question arises whether a printing process based on a set flow rate could improve reproduciblity and transfer to different printing systems. The control and monitoring of flow rate aim to introduce the concept of PAT in the field of bioprinting. This study investigates the effect of different processing modes (set pressure vs. set flow rate) on printing reproducibility occurring during an extrusion-based printing process consisting of 6 experimental runs consisting of 3 printed samples each. Additionally, the influence of different filling levels of the ink containing cartridge during a printing process was determined. Different solutions based on a varying amount of alginate polymer and Kolliphor hydrogels in varying concentrations showed the need for individual setting of printing parameter. To investigate parameter transferability among different devices two different printers were used and the flow was monitored using a flow sensor attached to the printing unit. It could be demonstrated that a set flow rate controlled printing process improved accuracy and the filling level also affects the accuracy of printing, the magnitude of this effects varies as the cartridge level declined. The transferability between printed devices was eased by setting the printing parameters according to a set flow rate of each bioink disregarding the value of the set pressure. Finally, by a bioprinting porcess control based on a set flow rate, the coefficient of variance for printed objects could be reduced from 0.2 to 0.02 for 10% (w/v) alginate polymer solutions.
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Affiliation(s)
- Svenja Strauß
- Karlsruhe Institute of Technology, Institute of Functional Interfaces, Karlsruhe, Germany
| | - Bianca Schroth
- Karlsruhe Institute of Technology, Institute of Functional Interfaces, Karlsruhe, Germany
| | - Jürgen Hubbuch
- Karlsruhe Institute of Technology, Institute of Functional Interfaces, Karlsruhe, Germany
- Institute of Engineering in Life Sciences, Section IV: Molecular Separation Engineering, Karlsruhe Institute of Technology, Karlsruhe, Germany
- *Correspondence: Jürgen Hubbuch,
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11
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Hull SM, Brunel LG, Heilshorn SC. 3D Bioprinting of Cell-Laden Hydrogels for Improved Biological Functionality. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2103691. [PMID: 34672027 PMCID: PMC8988886 DOI: 10.1002/adma.202103691] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 09/15/2021] [Indexed: 05/03/2023]
Abstract
The encapsulation of cells within gel-phase materials to form bioinks offers distinct advantages for next-generation 3D bioprinting. 3D bioprinting has emerged as a promising tool for patterning cells, but the technology remains limited in its ability to produce biofunctional, tissue-like constructs due to a dearth of materials suitable for bioinks. While early demonstrations commonly used viscous polymers optimized for printability, these materials often lacked cell compatibility and biological functionality. In response, advanced materials that exist in the gel phase during the entire printing process are being developed, since hydrogels are uniquely positioned to both protect cells during extrusion and provide biological signals to embedded cells as the construct matures during culture. Here, an overview of the design considerations for gel-phase materials as bioinks is presented, with a focus on their mechanical, biochemical, and dynamic gel properties. Current challenges and opportunities that arise due to the fact that bioprinted constructs are active, living hydrogels composed of both acellular and cellular components are also evaluated. Engineering hydrogels with consideration of cells as an intrinsic component of the printed bioink will enable control over the evolution of the living construct after printing to achieve greater biofunctionality.
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Affiliation(s)
- Sarah M Hull
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Lucia G Brunel
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Sarah C Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
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12
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Yan X, Yang B, Chen Y, Song Y, Ye J, Pan Y, Zhou B, Wang Y, Mao F, Dong Y, Liu D, Yu J. Anti-Friction MSCs Delivery System Improves the Therapy for Severe Osteoarthritis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2104758. [PMID: 34657320 DOI: 10.1002/adma.202104758] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 10/12/2021] [Indexed: 06/13/2023]
Abstract
Osteoarthritis (OA) is a musculoskeletal disorder disease affecting about 500 million people worldwide and mesenchymal sem cells (MSCs) therapy has been demonstrated as a potential strategy to treat OA. However, the shear forces during direct injection and the harsher shear condition of OA environments would lead to significant cell damage and inhibit the therapeutic efficacy. Herein, DNA supramolecular hydrogel has been applied as delivering material for MSCs to treat severe OA model, which perform extraordinary protection in MSCs against the shear force both in vitro and in vivo. It is demonstrated that the DNA supramolecular hydrogel can promote formation of quality cartilage, reduce osteophyte, and normalize subchondral bone under the high friction condition of OA, whose molecular mechanisms underlying therapeutic effects are also investigated. It can be anticipated that DNA supramolecular hydrogel would be a promising cell delivery system for multiple potential MSCs therapy.
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Affiliation(s)
- Xin Yan
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, 100191, China
- Institute of Sports Medicine, Peking University, Beijing, 100191, China
| | - Bo Yang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yourong Chen
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, 100191, China
- Institute of Sports Medicine, Peking University, Beijing, 100191, China
| | - Yifan Song
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, 100191, China
- Institute of Sports Medicine, Peking University, Beijing, 100191, China
| | - Jing Ye
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, 100191, China
- Institute of Sports Medicine, Peking University, Beijing, 100191, China
| | - Yufan Pan
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Bini Zhou
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yuqing Wang
- Tsinghua Laboratory of Brain and Intelligence, Tsinghua University, Beijing, 100084, China
| | - Fengbiao Mao
- Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Yuanchen Dong
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Dongsheng Liu
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jiakuo Yu
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, 100191, China
- Institute of Sports Medicine, Peking University, Beijing, 100191, China
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13
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Mañas-Torres MC, Gila-Vilchez C, Vazquez-Perez FJ, Kuzhir P, Momier D, Scimeca JC, Borderie A, Goracci M, Burel-Vandenbos F, Blanco-Elices C, Rodriguez IA, Alaminos M, de Cienfuegos LÁ, Lopez-Lopez MT. Injectable Magnetic-Responsive Short-Peptide Supramolecular Hydrogels: Ex Vivo and In Vivo Evaluation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:49692-49704. [PMID: 34645258 PMCID: PMC8554763 DOI: 10.1021/acsami.1c13972] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The inclusion of magnetic nanoparticles (MNP) in a hydrogel matrix to produce magnetic hydrogels has broadened the scope of these materials in biomedical research. Embedded MNP offer the possibility to modulate the physical properties of the hydrogel remotely and on demand by applying an external magnetic field. Moreover, they enable permanent changes in the mechanical properties of the hydrogel, as well as alterations in the micro- and macroporosity of its three-dimensional (3D) structure, with the associated potential to induce anisotropy. In this work, the behavior of biocompatible and biodegradable hydrogels made with Fmoc-diphenylalanine (Fmoc-FF) (Fmoc = fluorenylmethoxycarbonyl) and Fmoc-arginine-glycine-aspartic acid (Fmoc-RGD) short peptides to which MNP were incorporated was studied in detail with physicochemical, mechanical, and biological methods. The resulting hybrid hydrogels showed enhance mechanical properties and withstood injection without phase disruption. In mice, the hydrogels showed faster and improved self-healing properties compared to their nonmagnetic counterparts. Thanks to these superior physical properties and stability during culture, they can be used as 3D scaffolds for cell growth. Additionally, magnetic short-peptide hydrogels showed good biocompatibility and the absence of toxicity, which together with their enhanced mechanical stability and excellent injectability make them ideal biomaterials for in vivo biomedical applications with minimally invasive surgery. This study presents a new approach to improving the physical and mechanical properties of supramolecular hydrogels by incorporating MNP, which confer structural reinforcement and stability, remote actuation by magnetic fields, and better injectability. Our approach is a potential catalyst for expanding the biomedical applications of supramolecular short-peptide hydrogels.
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Affiliation(s)
- Mari C. Mañas-Torres
- Universidad
de Granada, Departamento de Química Orgánica, Facultad
de Ciencias, Unidad de Excelencia de Química
Aplicada a Biomedicina y Medioambiente, 18071 Granada, Spain
- Instituto
de Investigación Biosanitaria (ibs.GRANADA), 18012 Granada, Spain
| | - Cristina Gila-Vilchez
- Universidad
de Granada, Departamento de
Física Aplicada, Facultad de Ciencias, 18071 Granada, Spain
- Instituto
de Investigación Biosanitaria (ibs.GRANADA), 18012 Granada, Spain
| | | | - Pavel Kuzhir
- Université
Côte d’Azur, CNRS UMR 7010, Institute of Physics of Nice, Parc Valrose, 06108 Nice, France
| | - David Momier
- Université
Côte d’Azur, CNRS UMR 7277, Institute of Biology Valrose, 06107 Nice, France
| | - Jean-Claude Scimeca
- Université
Côte d’Azur, CNRS UMR 7277, Institute of Biology Valrose, 06107 Nice, France
| | - Arnaud Borderie
- Université
Côte d’Azur, Department of Pathology, CHU Nice, 06107 Nice, France
| | - Marianne Goracci
- Université
Côte d’Azur, Department of Pathology, CHU Nice, 06107 Nice, France
| | | | - Cristina Blanco-Elices
- Instituto
de Investigación Biosanitaria (ibs.GRANADA), 18012 Granada, Spain
- University
of Granada, Department of Histology and
Tissue Engineering Group, Faculty of Medicine, 18071 Granada, Spain
| | - Ismael A. Rodriguez
- University
of Granada, Department of Histology and
Tissue Engineering Group, Faculty of Medicine, 18071 Granada, Spain
- Department
of Histology, Faculty of Dentistry, National
University of Cordoba, 5000 Cordoba, Argentina
| | - Miguel Alaminos
- Instituto
de Investigación Biosanitaria (ibs.GRANADA), 18012 Granada, Spain
- University
of Granada, Department of Histology and
Tissue Engineering Group, Faculty of Medicine, 18071 Granada, Spain
| | - Luis Álvarez de Cienfuegos
- Universidad
de Granada, Departamento de Química Orgánica, Facultad
de Ciencias, Unidad de Excelencia de Química
Aplicada a Biomedicina y Medioambiente, 18071 Granada, Spain
- Instituto
de Investigación Biosanitaria (ibs.GRANADA), 18012 Granada, Spain
| | - Modesto T. Lopez-Lopez
- Universidad
de Granada, Departamento de
Física Aplicada, Facultad de Ciencias, 18071 Granada, Spain
- Instituto
de Investigación Biosanitaria (ibs.GRANADA), 18012 Granada, Spain
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14
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Soranno DE, Kirkbride-Romeo L, Han D, Altmann C, Rodell CB. Measurement of glomerular filtration rate reveals that subcapsular injection of shear-thinning hyaluronic acid hydrogels does not impair kidney function in mice. J Biomed Mater Res A 2021; 110:652-658. [PMID: 34590787 PMCID: PMC9292789 DOI: 10.1002/jbm.a.37317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 09/20/2021] [Accepted: 09/22/2021] [Indexed: 11/07/2022]
Abstract
The continued development of minimally invasive therapeutic implants, such as injectable hydrogels, necessitates the concurrent advancement of methods to best assess their biocompatibility via functional outcomes in vivo. Biomaterial implants have been studied to treat kidney disease; however, assessment of biocompatibility has been limited to biomarker and histological assessments. Techniques now exist to measure kidney function serially in vivo in murine studies via transcutaneous measurements of glomerular filtration rate (tGFR). In this study, adult male and female wild-type BalbC mice underwent right unilateral nephrectomy. The remaining solitary left kidney was allowed 4 weeks to recover via compensatory hypertrophy, after which subcapsular injection of either saline or shear-thinning hyaluronic acid hydrogel was performed. Serial tGFR measurements before and after treatment were used to assess the effect of hydrogel injection on kidney filtration. Urine and serum biomarkers of kidney function, and kidney histology were also quantified. Hydrogel injection did not affect kidney function, as assessed by tGFR. Results were in agreement with standard metrics of serum and urine biomarkers of injury as well as histological assessment of inflammation. The model developed provides a direct functional assessment of implant compatibility for the treatment of kidney disease and impact on kidney function.
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Affiliation(s)
- Danielle E Soranno
- Department of Pediatrics, University of Colorado, Aurora, Colorado, USA.,Department of Bioengineering, University of Colorado, Aurora, Colorado, USA.,Department of Medicine, University of Colorado, Aurora, Colorado, USA
| | | | - Daniel Han
- Department of Urology, Stanford University, CA, USA
| | | | - Christopher B Rodell
- School of Biomedical Engineering, Science and Health SystemsScience and Health Systems, Drexel University, Philadelphia, Pennsylvania, USA
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15
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Madhavikutty AS, Ohta S, Chandel AKS, Qi P, Ito T. Analysis of Endoscopic Injectability and Post-Ejection Dripping of Yield Stress Fluids: Laponite, Carbopol and Xanthan Gum. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2021. [DOI: 10.1252/jcej.21we018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | - Seiichi Ohta
- Institute of Engineering Innovation, The University of Tokyo
| | | | - Pan Qi
- Center for Disease Biology and Integrative Medicine, The University of Tokyo
| | - Taichi Ito
- Center for Disease Biology and Integrative Medicine, The University of Tokyo
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16
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Firipis K, Nisbet DR, Franks SJ, Kapsa RMI, Pirogova E, Williams RJ, Quigley A. Enhancing Peptide Biomaterials for Biofabrication. Polymers (Basel) 2021; 13:polym13162590. [PMID: 34451130 PMCID: PMC8400132 DOI: 10.3390/polym13162590] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/30/2021] [Accepted: 07/30/2021] [Indexed: 12/20/2022] Open
Abstract
Biofabrication using well-matched cell/materials systems provides unprecedented opportunities for dealing with human health issues where disease or injury overtake the body’s native regenerative abilities. Such opportunities can be enhanced through the development of biomaterials with cues that appropriately influence embedded cells into forming functional tissues and organs. In this context, biomaterials’ reliance on rigid biofabrication techniques needs to support the incorporation of a hierarchical mimicry of local and bulk biological cues that mimic the key functional components of native extracellular matrix. Advances in synthetic self-assembling peptide biomaterials promise to produce reproducible mimics of tissue-specific structures and may go some way in overcoming batch inconsistency issues of naturally sourced materials. Recent work in this area has demonstrated biofabrication with self-assembling peptide biomaterials with unique biofabrication technologies to support structural fidelity upon 3D patterning. The use of synthetic self-assembling peptide biomaterials is a growing field that has demonstrated applicability in dermal, intestinal, muscle, cancer and stem cell tissue engineering.
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Affiliation(s)
- Kate Firipis
- Biofab3D, Aikenhead Centre for Medical Discovery, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (K.F.); (R.M.I.K.); (E.P.)
- Biomedical and Electrical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - David R. Nisbet
- Laboratory of Advanced Biomaterials, The Australian National University, Acton, Canberra, ACT 2601, Australia; (D.R.N.); (S.J.F.)
- The Graeme Clark Institute, Faculty of Engineering and Information Technology, Melbourne, VIC 3000, Australia
- Faculty of Medicine, Dentistry and Health Services, The University of Melbourne, Melbourne, VIC 3000, Australia
| | - Stephanie J. Franks
- Laboratory of Advanced Biomaterials, The Australian National University, Acton, Canberra, ACT 2601, Australia; (D.R.N.); (S.J.F.)
| | - Robert M. I. Kapsa
- Biofab3D, Aikenhead Centre for Medical Discovery, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (K.F.); (R.M.I.K.); (E.P.)
- Biomedical and Electrical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
- Department of Medicine, Melbourne University, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3064, Australia
| | - Elena Pirogova
- Biofab3D, Aikenhead Centre for Medical Discovery, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (K.F.); (R.M.I.K.); (E.P.)
- Biomedical and Electrical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Richard J. Williams
- Biofab3D, Aikenhead Centre for Medical Discovery, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (K.F.); (R.M.I.K.); (E.P.)
- Institute of Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia
- Correspondence: (R.J.W.); (A.Q.)
| | - Anita Quigley
- Biofab3D, Aikenhead Centre for Medical Discovery, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (K.F.); (R.M.I.K.); (E.P.)
- Biomedical and Electrical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
- Department of Medicine, Melbourne University, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3064, Australia
- Correspondence: (R.J.W.); (A.Q.)
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17
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Jones CW, Morales CG, Eltiste SL, Yanchik-Slade FE, Lee NR, Nilsson BL. Capacity for increased surface area in the hydrophobic core of β-sheet peptide bilayer nanoribbons. J Pept Sci 2021; 27:e3334. [PMID: 34151480 PMCID: PMC8349901 DOI: 10.1002/psc.3334] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 04/19/2021] [Indexed: 12/12/2022]
Abstract
Amphipathic peptides with amino acids arranged in alternating patterns of hydrophobic and hydrophilic residues efficiently self‐assemble into β‐sheet bilayer nanoribbons. Hydrophobic side chain functionality is effectively buried in the interior of the putative bilayer of these nanoribbons. This study investigates consequences on self‐assembly of increasing the surface area of aromatic side chain groups that reside in the hydrophobic core of nanoribbons derived from Ac‐(XKXE)2‐NH2 peptides (X = hydrophobic residue). A series of Ac‐(XKXE)2‐NH2 peptides incorporating aromatic amino acids of increasing molecular volume and steric profile (X = phenylalanine [Phe], homophenylalanine [Hph], tryptophan [Trp], 1‐naphthylalanine [1‐Nal], 2‐naphthylalanine [2‐Nal], or biphenylalanine [Bip]) were assessed to determine substitution effects on self‐assembly propensity and on morphology of the resulting nanoribbon structures. Additional studies were conducted to determine the effects of incorporating amino acids of differing steric profile in the hydrophobic core (Ac‐X1KFEFKFE‐NH2 and Ac‐(X1,5KFE)‐NH2 peptides, X = Trp or Bip). Spectroscopic analysis by circular dichroism (CD) and Fourier transform infrared (FT‐IR) spectroscopy indicated β‐sheet formation for all variants. Self‐assembly rate increased with peptide hydrophobicity; increased molecular volume of the hydrophobic side chain groups did not appear to induce kinetic penalties on self‐assembly rates. Transmission electron microscopy (TEM) imaging indicated variation in fibril morphology as a function of amino acid in the X positions. This study confirms that hydrophobicity of amphipathic Ac‐(XKXE)2‐NH2 peptides correlates to self‐assembly propensity and that the hydrophobic core of the resulting nanoribbon bilayers has a significant capacity to accommodate sterically demanding functional groups. These findings provide insight that may be used to guide the exploitation of self‐assembled amphipathic peptides as functional biomaterials.
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Affiliation(s)
| | - Crystal G Morales
- Department of Biological Sciences, Northern Arizona University, Flagstaff, Arizona, USA
| | - Sharon L Eltiste
- Department of Chemistry and Biochemistry, Center for Materials Interfaces in Research and Applications (¡MIRA!), Northern Arizona University, Flagstaff, Arizona, USA
| | | | - Naomi R Lee
- Department of Chemistry and Biochemistry, Center for Materials Interfaces in Research and Applications (¡MIRA!), Northern Arizona University, Flagstaff, Arizona, USA
| | - Bradley L Nilsson
- Department of Chemistry, University of Rochester, Rochester, New York, USA
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18
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Raskatov JA, Schneider JP, Nilsson BL. Defining the Landscape of the Pauling-Corey Rippled Sheet: An Orphaned Motif Finding New Homes. Acc Chem Res 2021; 54:2488-2501. [PMID: 33901396 PMCID: PMC8154201 DOI: 10.1021/acs.accounts.1c00084] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
![]()
When peptides are mixed with their mirror images in an equimolar
ratio, two-dimensional periodic structural folds can form, in which
extended peptide strands are arrayed with alternating chirality. The
resultant topography class, termed the rippled β-sheet, was
introduced as a theoretical concept by Pauling and Corey in 1953.
Unlike other fundamental protein structural motifs identified around
that time, including the α-helix and the pleated β-sheet,
it took several decades before conclusive experimental data supporting
the proposed rippled β-sheet motif were gained. Much of the
key experimental evidence was provided over the course of the past
decade through the concurrent efforts of our three laboratories. Studies
that focused on developing new self-assembling hydrogel materials
have shown that certain amphiphilic peptides form fibrils and hydrogel
networks that are more rigid and have a higher thermodynamic stability
when made from racemic peptide mixtures as opposed to pure enantiomers.
Related interrogation of assemblies composed of mixtures of l- and d-amphiphilic peptides confirmed that the resulting
fibrils were composed of alternating l/d peptides
consistent with rippled β-sheets. It was also demonstrated that
mirror-image amyloid beta (Aβ) could act as a molecular chaperone
to promote oligomer-to-fibril conversion of the natural Aβ enantiomer,
which was found to reduce Aβ neurotoxicity against different
neuronal cell models. With a cross-disciplinary approach that combines
experiment and theory, our three laboratories have demonstrated the
unique biophysical, biochemical, and biological properties that arise
upon mixing of peptide enantiomers, in consequence of rippled β-sheet
formation. In this Account, we give an overview of the early history
of the rippled β-sheet and provide a detailed structural description/definition
of this motif relative to the pleated β-sheet. We then summarize
the key findings, obtained on three unique sets of aggregating mirror-image
peptide pairs through independent efforts of our three laboratories,
and use these results to delineate the landscape of the rippled β-sheet
structural motif to inspire future studies. Peptide sequence parameters
that favor rippled β-sheet assembly are described, along with
the accompanying kinetic and thermodynamic properties, as well as
the resulting emergent physical properties of the assemblies. The
Account then concludes with a brief overview of some key unresolved
challenges in this nascent field. There is much potential for future
applications of this unique supramolecular motif in the realm of materials
design and biomedical research. We hope this Account will stimulate
much-needed discussion of this fascinating structural class to eventually
produce a fully quantitative, rational framework for the molecular
engineering of rippled β-sheets in the future.
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Affiliation(s)
- Jevgenij A. Raskatov
- Department of Chemistry and Biochemistry, UCSC, 1156 High Street, Santa Cruz, California 95064, United States
| | - Joel P. Schneider
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21702, United States
| | - Bradley L. Nilsson
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, United States
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19
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Safakas K, Saravanou SF, Iatridi Z, Tsitsilianis C. Alginate- g-PNIPAM-Based Thermo/Shear-Responsive Injectable Hydrogels: Tailoring the Rheological Properties by Adjusting the LCST of the Grafting Chains. Int J Mol Sci 2021; 22:3824. [PMID: 33917134 PMCID: PMC8067843 DOI: 10.3390/ijms22083824] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/04/2021] [Accepted: 04/05/2021] [Indexed: 12/14/2022] Open
Abstract
Graft copolymers of alginate backbone and N-isopropylacrylamide/N-tert-butylacrylamide random copolymer, P(NIPAMx-co-NtBAMy), side chains (stickers) with various NtBAM content were designed and explored in aqueous media. Self-assembling thermoresponsive hydrogels are formed upon heating, in all cases, through the hydrophobic association of the P(NIPAMx-co-NtBAMy) sticky pendant chains. The rheological properties of the formulations depend remarkably on the NtBAM hydrophobic content, which regulates the lower critical solution temperature (LCST) and, in turn, the stickers' thermo-responsiveness. The gelation point, Tgel, was shifted to lower temperatures from 38 to 20 °C by enriching the PNIPAM chains with 20 mol % NtBAM, shifting accordingly to the gelation temperature window. The consequences of the Tgel shift to the hydrogels' rheological properties are significant at room and body temperature. For instance, at 37 °C, the storage modulus increases about two orders of magnitude and the terminal relaxation time increase about 10 orders of magnitude by enriching the stickers with 20 mol % hydrophobic moieties. Two main thermo-induced behaviors were revealed, characterized by a sol-gel and a weak gel-stiff gel transition for the copolymer with stickers of low (0.6 mol %) and high (14, 20 mol %) NtBAM content, respectively. The first type of hydrogels is easily injectable, while for the second one, the injectability is provided by shear-thinning effects. The influence of the type of media (phosphate buffer (PB), phosphate-buffered saline (PBS), Dulbecco's modified Eagle's medium (DMEM)) on the hydrogel properties was also explored and discussed. The 4 wt % NaALG-g-P(NIPAM80-co-NtBAM20)/DMEM formulation showed excellent shear-induced injectability at room temperature and instantaneous thermo-induced gel stiffening at body temperature, rendering it a good candidate for cell transplantation potential applications.
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Affiliation(s)
| | | | | | - Constantinos Tsitsilianis
- Department of Chemical Engineering, University of Patras, 26500 Patras, Greece; (K.S.); (S.-F.S.); (Z.I.)
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20
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Yamada Y, Fichman G, Schneider JP. Serum Protein Adsorption Modulates the Toxicity of Highly Positively Charged Hydrogel Surfaces. ACS APPLIED MATERIALS & INTERFACES 2021; 13:8006-8014. [PMID: 33590757 PMCID: PMC9169696 DOI: 10.1021/acsami.0c21596] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Hydrogels formed from peptide self-assembly are a class of materials that are being explored for their utility in tissue engineering, drug and cell delivery, two- and three-dimensional cell culture, and as adjuvants in surgical procedures. Most self-assembled peptide gels can be syringe-injected in vivo to facilitate the local delivery of payloads, including cells, directly to the targeted tissue. Herein, we report that highly positively charged peptide gels are inherently toxic to cells, which would seem to limit their utility. However, adding media containing fetal bovine serum, a common culture supplement, directly transforms these toxic gels into cytocompatible materials capable of sustaining cell viability even in the absence of added nutrients. Multistage mass spectrometry showed that at least 40 serum proteins can absorb to a gel's surface through electrostatic attraction ameliorating its toxicity. Further, cell-based studies employing model gels having only bovine serum albumin, fetuin-A, or vitronectin absorbed to the gel surface showed that single protein additives can also be effective depending on the identity of the cell line. Separate studies employing these model gels showed that the mechanism(s) responsible for mitigating apoptosis involve both the pacification of gel surface charge and adsorbed protein-mediated cell signaling events that activate both the PI3/Akt and MAPK/ERK pathways which are known to facilitate resistance to stress-induced apoptosis and overall cell survival.
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Affiliation(s)
- Yuji Yamada
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, Maryland 21702, United States
| | - Galit Fichman
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, Maryland 21702, United States
| | - Joel P Schneider
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, Maryland 21702, United States
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21
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Poustchi F, Amani H, Ahmadian Z, Niknezhad SV, Mehrabi S, Santos HA, Shahbazi M. Combination Therapy of Killing Diseases by Injectable Hydrogels: From Concept to Medical Applications. Adv Healthc Mater 2021; 10:e2001571. [PMID: 33274841 DOI: 10.1002/adhm.202001571] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/13/2020] [Indexed: 01/16/2023]
Abstract
The complexity of hard-to-treat diseases strongly undermines the therapeutic potential of available treatment options. Therefore, a paradigm shift from monotherapy toward combination therapy has been observed in clinical research to improve the efficiency of available treatment options. The advantages of combination therapy include the possibility of synchronous alteration of different biological pathways, reducing the required effective therapeutic dose, reducing drug resistance, and lowering the overall costs of treatment. The tunable physical properties, excellent biocompatibility, facile preparation, and ease of administration with minimal invasiveness of injectable hydrogels (IHs) have made them excellent candidates to solve the clinical and pharmacological limitations of present systems for multitherapy by direct delivery of therapeutic payloads and improving therapeutic responses through the formation of depots containing drugs, genes, cells, or a combination of them in the body after a single injection. In this review, currently available methods for the design and fabrication of IHs are systematically discussed in the first section. Next, as a step toward establishing IHs for future multimodal synergistic therapies, recent advances in cancer combination therapy, wound healing, and tissue engineering are addressed in detail in the following sections. Finally, opportunities and challenges associated with IHs for multitherapy are listed and further discussed.
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Affiliation(s)
- Fatemeh Poustchi
- Drug Research Program Division of Pharmaceutical Chemistry and Technology Faculty of Pharmacy University of Helsinki Helsinki FI‐00014 Finland
- Department of Nanotechnology University of Guilan Rasht Guilan 41996‐13765 Iran
| | - Hamed Amani
- Faculty of Advanced Technologies in Medicine, Department of Medical Nanotechnology Iran University of Medical Science Tehran 14496‐14535 Iran
| | - Zainab Ahmadian
- Department of Pharmaceutics School of Pharmacy Zanjan University of Medical Science Zanjan 45139‐56184 Iran
| | - Seyyed Vahid Niknezhad
- Burn and Wound Healing Research Center Shiraz University of Medical Sciences Shiraz 71987‐54361 Iran
| | - Soraya Mehrabi
- Faculty of Medicine, Department of Physiology Iran University of Medical Sciences Tehran 14496‐14535 Iran
| | - Hélder A. Santos
- Drug Research Program Division of Pharmaceutical Chemistry and Technology Faculty of Pharmacy University of Helsinki Helsinki FI‐00014 Finland
- Helsinki Institute of Life Science (HiLIFE) University of Helsinki Helsinki FI‐00014 Finland
| | - Mohammad‐Ali Shahbazi
- Drug Research Program Division of Pharmaceutical Chemistry and Technology Faculty of Pharmacy University of Helsinki Helsinki FI‐00014 Finland
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC) Zanjan University of Medical Sciences Zanjan 45139‐56184 Iran
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22
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Design of RGDS Peptide-Immobilized Self-Assembling β-Strand Peptide from Barnacle Protein. Int J Mol Sci 2021; 22:ijms22031240. [PMID: 33513895 PMCID: PMC7866236 DOI: 10.3390/ijms22031240] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 11/17/2022] Open
Abstract
We designed three types of RGD-containing barnacle adhesive proteins using self-assembling peptides. In the present study, three types of RGD-containing peptides were synthesized by solid-phase peptide synthesis, and the secondary structures of these peptides were analyzed by CD and FT-IR spectroscopy. The mechanical properties of peptide hydrogels were characterized by a rheometer. We discuss the correlation between the peptide conformation, and cell attachment and cell spreading activity from the viewpoint of developing effective tissue engineering scaffolds. We created a peptide-coated cell culture substrate by coating peptides on a polystyrene plate. They significantly facilitated cell adhesion and spreading compared to a non-coated substrate. When the RGDS sequence was modified at N- or C-terminal of R-Y, it was found that the self-assembling ability was dependent on the strongly affects hydrogel formation and cell adhesion caused by its secondary structure.
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23
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Imere A, Ligorio C, O'Brien M, Wong JKF, Domingos M, Cartmell SH. Engineering a cell-hydrogel-fibre composite to mimic the structure and function of the tendon synovial sheath. Acta Biomater 2021; 119:140-154. [PMID: 33189954 DOI: 10.1016/j.actbio.2020.11.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 11/05/2020] [Accepted: 11/10/2020] [Indexed: 12/27/2022]
Abstract
The repair of tendon injuries is often compromised by post-operative peritendinous adhesions. Placing a physical barrier at the interface between the tendon and the surrounding tissue could potentially solve this problem by reducing adhesion formation. At present, no such system is available for routine use in clinical practice. Here, we propose the development of a bilayer membrane combining a nanofibrous poly(ε-caprolactone) (PCL) electrospun mesh with a layer of self-assembling peptide hydrogel (SAPH) laden with type-B synoviocytes. This bilayer membrane would act as an anti-adhesion system capable of restoring tendon lubrication, while assisting with synovial sheath regeneration. The PCL mesh showed adequate mechanical properties (Young's modulus=19±4 MPa, ultimate tensile stress=9.6±1.7 MPa, failure load=0.5±0.1 N), indicating that the membrane is easy to handle and capable to withstand the frictional forces generated on the tendon's surface during movement (~0.3 N). Morphological analysis confirmed the generation of a mesh with nanosized PCL fibres and small pores (< 3 μm), which prevented fibroblast infiltration to impede extrinsic healing but still allowing diffusion of nutrients and waste. Rheological tests showed that incorporation of SAPH layer allows good lubrication properties when the membrane is articulated against porcine tendon or hypodermis, suggesting that restoration of tendon gliding is possible upon implantation. Moreover, viability and metabolic activity tests indicated that the SAPH was conducive to rabbit synoviocyte growth and proliferation over 28 days of 3D culture, sustaining cell production of specific matrix components, particularly hyaluronic acid. Synoviocyte-laden peptide hydrogel promoted a sustained endogenous production of hyaluronic acid, providing an anti-friction layer that potentially restores the tendon gliding environment.
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Affiliation(s)
- Angela Imere
- Department of Materials, School of Natural Sciences, Faculty of Science and Engineering, The University of Manchester, Manchester, UK.; The Henry Royce Institute, Royce Hub Building, The University of Manchester, Manchester, UK
| | - Cosimo Ligorio
- Department of Materials, School of Natural Sciences, Faculty of Science and Engineering, The University of Manchester, Manchester, UK.; Manchester Institute of Biotechnology (MIB), The University of Manchester, Manchester, UK
| | - Marie O'Brien
- Department of Materials, School of Natural Sciences, Faculty of Science and Engineering, The University of Manchester, Manchester, UK.; The Henry Royce Institute, Royce Hub Building, The University of Manchester, Manchester, UK
| | - Jason K F Wong
- Blond McIndoe Laboratories, Division of Cell Matrix Biology & Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK.; Department of Plastic Surgery & Burns, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Marco Domingos
- The Henry Royce Institute, Royce Hub Building, The University of Manchester, Manchester, UK.; Department of Mechanical, Aerospace and Civil Engineering, School of Engineering, Faculty of Science and Engineering, The University of Manchester, Manchester, UK
| | - Sarah H Cartmell
- Department of Materials, School of Natural Sciences, Faculty of Science and Engineering, The University of Manchester, Manchester, UK.; The Henry Royce Institute, Royce Hub Building, The University of Manchester, Manchester, UK..
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24
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Ding X, Zhao H, Li Y, Lee AL, Li Z, Fu M, Li C, Yang YY, Yuan P. Synthetic peptide hydrogels as 3D scaffolds for tissue engineering. Adv Drug Deliv Rev 2020; 160:78-104. [PMID: 33091503 DOI: 10.1016/j.addr.2020.10.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 09/25/2020] [Accepted: 10/13/2020] [Indexed: 12/13/2022]
Abstract
The regeneration of tissues and organs poses an immense challenge due to the extreme complexity in the research work involved. Despite the tissue engineering approach being considered as a promising strategy for more than two decades, a key issue impeding its progress is the lack of ideal scaffold materials. Nature-inspired synthetic peptide hydrogels are inherently biocompatible, and its high resemblance to extracellular matrix makes peptide hydrogels suitable 3D scaffold materials. This review covers the important aspects of peptide hydrogels as 3D scaffolds, including mechanical properties, biodegradability and bioactivity, and the current approaches in creating matrices with optimized features. Many of these scaffolds contain peptide sequences that are widely reported for tissue repair and regeneration and these peptide sequences will also be discussed. Furthermore, 3D biofabrication strategies of synthetic peptide hydrogels and the recent advances of peptide hydrogels in tissue engineering will also be described to reflect the current trend in the field. In the final section, we will present the future outlook in the design and development of peptide-based hydrogels for translational tissue engineering applications.
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Affiliation(s)
- Xin Ding
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China.
| | - Huimin Zhao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Yuzhen Li
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Ashlynn Lingzhi Lee
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Zongshao Li
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Mengjing Fu
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Chengnan Li
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore.
| | - Peiyan Yuan
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China.
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25
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Yang Z, Xu H, Zhao X. Designer Self-Assembling Peptide Hydrogels to Engineer 3D Cell Microenvironments for Cell Constructs Formation and Precise Oncology Remodeling in Ovarian Cancer. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1903718. [PMID: 32382486 PMCID: PMC7201262 DOI: 10.1002/advs.201903718] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/08/2020] [Indexed: 02/05/2023]
Abstract
Designer self-assembling peptides form the entangled nanofiber networks in hydrogels by ionic-complementary self-assembly. This type of hydrogel has realistic biological and physiochemical properties to serve as biomimetic extracellular matrix (ECM) for biomedical applications. The advantages and benefits are distinct from natural hydrogels and other synthetic or semisynthetic hydrogels. Designer peptides provide diverse alternatives of main building blocks to form various functional nanostructures. The entangled nanofiber networks permit essential compositional complexity and heterogeneity of engineering cell microenvironments in comparison with other hydrogels, which may reconstruct the tumor microenvironments (TMEs) in 3D cell cultures and tissue-specific modeling in vitro. Either ovarian cancer progression or recurrence and relapse are involved in the multifaceted TMEs in addition to mesothelial cells, fibroblasts, endothelial cells, pericytes, immune cells, adipocytes, and the ECM. Based on the progress in common hydrogel products, this work focuses on the diverse designer self-assembling peptide hydrogels for instructive cell constructs in tissue-specific modeling and the precise oncology remodeling for ovarian cancer, which are issued by several research aspects in a 3D context. The advantages and significance of designer peptide hydrogels are discussed, and some common approaches and coming challenges are also addressed in current complex tumor diseases.
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Affiliation(s)
- Zehong Yang
- West China School of Basic Medical Sciences and Forensic MedicineSichuan UniversityChengduSichuan610041P. R. China
- Institute for Nanobiomedical Technology and Membrane BiologyWest China HospitalSichuan UniversityChengduSichuan610041P. R. China
| | - Hongyan Xu
- GL Biochem (Shanghai) Ltd.519 Ziyue Rd.Shanghai200241P. R. China
| | - Xiaojun Zhao
- Institute for Nanobiomedical Technology and Membrane BiologyWest China HospitalSichuan UniversityChengduSichuan610041P. R. China
- Wenzhou InstituteUniversity of Chinese Academy of Sciences (Wenzhou Institute of Biomaterials & Engineering)WenzhouZhejiang325001P. R. China
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26
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Marquardt LM, Doulames VM, Wang AT, Dubbin K, Suhar RA, Kratochvil MJ, Medress ZA, Plant GW, Heilshorn SC. Designer, injectable gels to prevent transplanted Schwann cell loss during spinal cord injury therapy. SCIENCE ADVANCES 2020; 6:eaaz1039. [PMID: 32270042 PMCID: PMC7112763 DOI: 10.1126/sciadv.aaz1039] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 01/08/2020] [Indexed: 05/09/2023]
Abstract
Transplantation of patient-derived Schwann cells is a promising regenerative medicine therapy for spinal cord injuries; however, therapeutic efficacy is compromised by inefficient cell delivery. We present a materials-based strategy that addresses three common causes of transplanted cell death: (i) membrane damage during injection, (ii) cell leakage from the injection site, and (iii) apoptosis due to loss of endogenous matrix. Using protein engineering and peptide-based assembly, we designed injectable hydrogels with modular cell-adhesive and mechanical properties. In a cervical contusion model, our hydrogel matrix resulted in a greater than 700% improvement in successful Schwann cell transplantation. The combination therapy of cells and gel significantly improved the spatial distribution of transplanted cells within the endogenous tissue. A reduction in cystic cavitation and neuronal loss were also observed with substantial increases in forelimb strength and coordination. Using an injectable hydrogel matrix, therefore, can markedly improve the outcomes of cellular transplantation therapies.
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Affiliation(s)
- Laura M. Marquardt
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Vanessa M. Doulames
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Alice T. Wang
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
| | - Karen Dubbin
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
| | - Riley A. Suhar
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
| | - Michael J. Kratochvil
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
- Division of Infectious Diseases, Stanford University School of Medicine, Stanford CA 94305, USA
| | - Zachary A. Medress
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Giles W. Plant
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA 94305, USA
- Corresponding author. (G.W.P.); (S.C.H.)
| | - Sarah C. Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
- Corresponding author. (G.W.P.); (S.C.H.)
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27
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Wang H, Jia L, Cong L, Yu H, Wang X. Enzymatically mediated, physiologically triggered N-palmitoyl chitosan hydrogels with temporally modulated high injectability. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123940] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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28
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Employing PEG crosslinkers to optimize cell viability in gel phase bioinks and tailor post printing mechanical properties. Acta Biomater 2019; 99:121-132. [PMID: 31539655 DOI: 10.1016/j.actbio.2019.09.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 08/26/2019] [Accepted: 09/07/2019] [Indexed: 12/20/2022]
Abstract
The field of 3D bioprinting has rapidly grown, yet the fundamental ability to manipulate material properties has been challenging with current bioink methods. Here, we change bioink properties using our PEG cross-linking (PEGX) bioink method with the objective of optimizing cell viability while retaining control of mechanical properties of the final bioprinted construct. First, we investigate cytocompatible, covalent cross-linking chemistries for bioink synthesis (e.g. Thiol Michael type addition and bioorthogonal inverse electron demand Diels-Alder reaction). We demonstrate these reactions are compatible with the bioink method, which results in high cell viability. The PEGX method is then exploited to optimize extruded cell viability by manipulating bioink gel robustness, characterized by mass flow rate. Below a critical point, cell viability linearly decreases with decreasing flow rates, but above this point, high viability is achieved. This work underscores the importance of building a foundational understanding of the relationships between extrudable bioink properties and cell health post-printing to more efficiently tune material properties for a variety of tissue and organ engineering applications. Finally, we also develop a post-printing, cell-friendly cross-linking strategy utilizing the same reactions used for synthesis. This secondary cross-linking leads to a range of mechanical properties relevant to soft tissue engineering as well as highly viable cell-laden gels stable for over one month in culture. STATEMENT OF SIGNIFICANCE: We demonstrate that a PEG crosslinking bioink method can be used with various cytocompatible, covalent cross-linking reactions: Thiol Michael type addition and tetrazine-norbornene click. The ability to vary bioink chemistry expands candidate polymers, and therefore can expedite development of new bioinks from unique polymers. We confirm post-printed cell viability and are the first to probe, in covalently cross-linked inks, how cell viability is impacted by different flow properties (mass flow rate). Finally, we also present PEG cross-linking as a new method of post-printing cross-linking that improves mechanical properties and stability while maintaining cell viability. By varying the cross-linking reaction, this method can be applicable to many types of polymers/inks for easy adoption by others investigating bioinks and hydrogels.
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29
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Echeverría C, Mijangos C. A Way to Predict Gold Nanoparticles/Polymer Hybrid Microgel Agglomeration Based on Rheological Studies. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1499. [PMID: 31640156 PMCID: PMC6835908 DOI: 10.3390/nano9101499] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/09/2019] [Accepted: 10/11/2019] [Indexed: 12/12/2022]
Abstract
In this work, a detailed rheological study of hybrid poly(acrylamide-co-acrylic acid) P(AAm-co-AAc) aqueous microgel dispersions is performed. Our intention is to understand how the presence of gold nanoparticles, AuNP, embedded within the microgel matrix, affects the viscoelastic properties, the colloidal gel structure formation, and the structure recovery after cessation of the deformation of the aqueous microgel dispersions. Frequency sweep experiments confirmed that hybrid microgel dispersions present a gel-like behavior and that the presence of AuNP content within microgel matrix contributes to the elasticity of the microgel dispersions. Strain sweep test confirmed that hybrid microgels aqueous dispersion also form colloidal gel structures that break upon deformation but that can be recovered when the deformation decreases. The fractal analysis performed to hybrid microgels, by applying Shih et al. and Wu and Morbidelli's scaling theories, evidenced that AuNP significantly affects the colloidal gel structure configuration ending up with the formation of agglomerates or microgel clusters with closer structures in comparison to the reference P(AAm-co-AAc) aqueous microgel dispersions.
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Affiliation(s)
- Coro Echeverría
- Institute of Polymer Science and Technology (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Carmen Mijangos
- Institute of Polymer Science and Technology (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain.
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30
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Sun W, Duan T, Cao Y, Li H. An Injectable Self-Healing Protein Hydrogel with Multiple Dissipation Modes and Tunable Dynamic Response. Biomacromolecules 2019; 20:4199-4207. [PMID: 31553595 DOI: 10.1021/acs.biomac.9b01114] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hydrogels with dynamic mechanical properties are of special interest in the field of tissue engineering and drug delivery. However, it remains challenging to tailor the dynamic mechanical response of hydrogels to simultaneously meet diverse application needs. Here, we report a hetero-coiled-coil complex cross-linked protein hydrogel exhibiting unusual multiple energy dissipation modes and tunable dynamic response. Such unique features confer on the hydrogel responsiveness to mechanical stimuli in a broad range of frequencies. Therefore, the hydrogels are injectable due to their shearing-thinning properties at low shear rates of 0.8 rad s-1 and can fully recover their mechanical properties within a few seconds due to the intrinsic fast dynamics of the cross-linkers. Moreover, the dynamic response of these hydrogels can be fine-tuned by the temperature and the hydrogel network structures. We anticipate that these hydrogels are promising candidates for delivering therapeutic drugs, biological molecules, and cells in a broad spectrum of biomedical applications.
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Affiliation(s)
- Wenxu Sun
- Department of Chemistry , University of British Columbia , Vancouver , BC V6T 1Z1 , Canada.,School of Physics , Nanjing University , Nanjing 210093 , P. R. China
| | - Tianyu Duan
- Department of Chemistry , University of British Columbia , Vancouver , BC V6T 1Z1 , Canada
| | - Yi Cao
- School of Physics , Nanjing University , Nanjing 210093 , P. R. China
| | - Hongbin Li
- Department of Chemistry , University of British Columbia , Vancouver , BC V6T 1Z1 , Canada
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31
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Tanaka S, Yukami S, Hachiro Y, Ohya Y, Kuzuya A. Application of DNA Quadruplex Hydrogels Prepared from Polyethylene Glycol-Oligodeoxynucleotide Conjugates to Cell Culture Media. Polymers (Basel) 2019; 11:E1607. [PMID: 31581736 PMCID: PMC6835832 DOI: 10.3390/polym11101607] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 09/20/2019] [Accepted: 09/28/2019] [Indexed: 11/17/2022] Open
Abstract
Application of Na+-responsive DNA quadruplex hydrogels, which utilize G-quadruplexes as crosslinking points of poly(ethylene glycol) (PEG) network as cell culture substrate, has been examined. PEG-oligodeoxynucleotide (ODN) conjugate, in which four deoxyguanosine (dG4) residues are tethered to both ends of PEG, was prepared by modified high-efficiency liquid phase (HELP) synthesis of oligonucleotides and used as the macromonomer. When mixed with equal volume of cell culture media, the solution of PEG-ODN turned into stiff hydrogel (G-quadruplex hydrogel) as the result of G-quadruplex formation by the dG4 segments in the presence of Na+. PEG-ODN itself did not show cytotoxicity and the resulting hydrogel was stable enough under cell culture conditions. However, L929 fibroblast cells cultured in G-quadruplex hydrogel remained spherical for a week, yet alive, without proliferation. The cells gradually sedimented through the gel day by day, probably due to the reversible nature of G-quadruplex formation and the resulting slow rearrangement of the macromonomers. Once they reached the bottom glass surface, the cells started to spread and proliferate.
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Grants
- JPMJPR12K4 Japan Science and Technology Agency
- 16H01854 Ministry of Education, Culture, Sports, Science and Technology
- 24350088 Ministry of Education, Culture, Sports, Science and Technology
- 17K19211 Ministry of Education, Culture, Sports, Science and Technology
- 24104004 Ministry of Education, Culture, Sports, Science and Technology
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Affiliation(s)
- Shizuma Tanaka
- Department of Chemistry and Materials Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan.
| | - Shinsuke Yukami
- Department of Chemistry and Materials Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan.
| | - Yuhei Hachiro
- Department of Chemistry and Materials Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan.
| | - Yuichi Ohya
- Department of Chemistry and Materials Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan.
- Collaborative Research Center of Engineering, Medicine, and Pharmacology, ORDIST, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan.
| | - Akinori Kuzuya
- Department of Chemistry and Materials Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan.
- Collaborative Research Center of Engineering, Medicine, and Pharmacology, ORDIST, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan.
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32
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Yamada Y, Patel NL, Kalen JD, Schneider JP. Design of a Peptide-Based Electronegative Hydrogel for the Direct Encapsulation, 3D Culturing, in Vivo Syringe-Based Delivery, and Long-Term Tissue Engraftment of Cells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:34688-34697. [PMID: 31448901 PMCID: PMC8274941 DOI: 10.1021/acsami.9b12152] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Soft materials that facilitate the three-dimensional (3D) encapsulation, proliferation, and facile local delivery of cells to targeted tissues will aid cell-based therapies, especially those that depend on the local engraftment of implanted cells. Herein, we develop a negatively charged fibrillar hydrogel based on the de novo-designed self-assembling peptide AcVES3-RGDV. Cells are easily encapsulated during the triggered self-assembly of the peptide leading to gel formation. Self-assembly is induced by adjusting the ionic strength and/or temperature of the solution, while avoiding large changes in pH. The AcVES3-RGDV gel allows cell-material attachment enabling both two-dimensional and 3D cell culture of adherent cells. Gel-cell constructs display shear-thin/recovery rheological properties enabling their syringe-based delivery. In vivo cellular fluorescence as well as tissue resection experiments show that the gel supports the long-term engraftment of cells delivered subcutaneously into mice.
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Affiliation(s)
- Y. Yamada
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, Maryland 21702, United States
| | - N. L. Patel
- Small Animal Imaging Program, Laboratory Animal Sciences Program, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Incorporation, Frederick, Maryland 21702, United States
| | - J. D. Kalen
- Small Animal Imaging Program, Laboratory Animal Sciences Program, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Incorporation, Frederick, Maryland 21702, United States
| | - J. P. Schneider
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, Maryland 21702, United States
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33
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Li J, Shi K, Sabet ZF, Fu W, Zhou H, Xu S, Liu T, You M, Cao M, Xu M, Cui X, Hu B, Liu Y, Chen C. New power of self-assembling carbonic anhydrase inhibitor: Short peptide-constructed nanofibers inspire hypoxic cancer therapy. SCIENCE ADVANCES 2019; 5:eaax0937. [PMID: 31523712 PMCID: PMC6731069 DOI: 10.1126/sciadv.aax0937] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 08/06/2019] [Indexed: 05/18/2023]
Abstract
Carbonic anhydrase (CA) IX overexpresses exclusively on cell membranes of hypoxic tumors, regulating the acidic tumor microenvironment. Small molecules of CA inhibitor modified with short peptide successfully achieve CA IX-targeted self-assembly that localizes CA inhibitors on hypoxic cancer cell surfaces and enhances their inhibition efficacy and selectivity. CA IX-related endocytosis also promotes selective intracellular uptake of these nanofibers under hypoxia, in which nanofiber structures increase in size with decreasing pH. This effect subsequently causes intracellular acid vesicle damage and blocks protective autophagy. The versatility of tunable nanostructures responding to cell milieu impressively provokes selective toxicities and provides strategic therapy for hypoxic tumors. Moreover, in vivo tests demonstrate considerable antimetastatic and antiangiogenesis effects in breast tumors, and particularly remarkable enhancement of antitumor efficacy in doxorubicin administration. With its biocompatible components and distinctive hypoxia therapies, this nanomaterial advances current chemotherapy, providing a new direction for hypoxic cancer therapy.
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Affiliation(s)
- Jiayang Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
| | - Kejian Shi
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
| | - Zeinab Farhadi Sabet
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Wenjiao Fu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
| | - Huige Zhou
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
| | - Shaoxin Xu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
| | - Tao Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
| | - Min You
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
| | - Mingjing Cao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
| | - Mengzhen Xu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
| | - Xuejing Cui
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
| | - Bin Hu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
| | - Ying Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- Corresponding author.
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Worthington P, Drake KM, Li Z, Napper AD, Pochan DJ, Langhans SA. Implementation of a High-Throughput Pilot Screen in Peptide Hydrogel-Based Three-Dimensional Cell Cultures. SLAS DISCOVERY : ADVANCING LIFE SCIENCES R & D 2019; 24:714-723. [PMID: 31039326 PMCID: PMC7277073 DOI: 10.1177/2472555219844570] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Cell-based high-throughput drug screening (HTS) is a common starting point for the drug discovery and development process. Currently, there is a push to combine complex cell culture systems with HTS to provide more clinically applicable results. However, there are mechanistic requirements inherent to HTS as well as material limitations that make this integration challenging. Here, we used the peptide-based shear-thinning hydrogel MAX8 tagged with the RGDS sequence to create a synthetic extracellular scaffold to culture cells in three dimensions and showed a preliminary implementation of the scaffold within an automated HTS setup using a pilot drug screen targeting medulloblastoma, a pediatric brain cancer. A total of 2202 compounds were screened in the 384-well format against cells encapsulated in the hydrogel as well as cells growing on traditional two-dimensional (2D) plastic. Eighty-two compounds passed the first round of screening at a single point of concentration. Sixteen-point dose-response was done on those 82 compounds, of which 17 compounds were validated. Three-dimensional (3D) cell-based HTS could be a powerful screening tool that allows researchers to finely tune the cell microenvironment, getting more clinically applicable data as a result. Here, we have shown the successful integration of a peptide-based hydrogel into the high-throughput format.
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Affiliation(s)
- Peter Worthington
- Nemours Center for Cancer Research, Alfred I duPont Hospital of Children, Wilmington, DE 19803, USA
- Department of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA
| | - Katherine M. Drake
- Nemours Center for Cancer Research, Alfred I duPont Hospital of Children, Wilmington, DE 19803, USA
| | - Zhiqin Li
- Nemours Center for Cancer Research, Alfred I duPont Hospital of Children, Wilmington, DE 19803, USA
| | - Andrew D. Napper
- Nemours Center for Cancer Research, Alfred I duPont Hospital of Children, Wilmington, DE 19803, USA
| | - Darrin J. Pochan
- Department of Materials Science and Engineering and Delaware Biotechnology Institute, University of Delaware, Newark, DE 19716, USA
| | - Sigrid A. Langhans
- Nemours Center for Cancer Research, Alfred I duPont Hospital of Children, Wilmington, DE 19803, USA
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35
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Recent trends in peripheral nervous regeneration using 3D biomaterials. Tissue Cell 2019; 59:70-81. [PMID: 31383291 DOI: 10.1016/j.tice.2019.06.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 06/17/2019] [Accepted: 06/27/2019] [Indexed: 02/06/2023]
Abstract
Mesenchymal stem cells (MSCs) owing their multipotency are known as progenitors for the regeneration of adult tissues including that of neuronal tissue. The repair and/or regeneration of traumatic nerves is still a challenging task for neurosurgeons. It is also a well-established fact that the microenvironment plays a primary role in determining the fate of stem cells to a specific lineage. In recent years, with the advent of nanotechnology and its positive influence on designing and fabrication of various 3D biomaterials have progressed to a greater extent. The production of 3D biomaterials such as nanofibers, conduits and hydrogels are providing a suitable environment for mimicking physiological niche of stem cells. These 3D biomaterials in combination with MSCs have been successfully analyzed for their potential in the regeneration of degenerative neurological disorders. This review primarily highlights the combinatorial effect of multipotent MSCs seeded on various 3D polymeric scaffolds in repair and regeneration of nervous tissue. The elaboration of MSCs from distinct sources reported so far in literature are summarized to understand their role in regeneration processes. Furthermore, we accentuate the application of 3D biomaterials especially the nanofibers, polymeric conduits, hydrogels infiltrated with MSCs harvested from distinct sources in the field of peripheral nerve regeneration studies.
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36
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Ligorio C, Zhou M, Wychowaniec JK, Zhu X, Bartlam C, Miller AF, Vijayaraghavan A, Hoyland JA, Saiani A. Graphene oxide containing self-assembling peptide hybrid hydrogels as a potential 3D injectable cell delivery platform for intervertebral disc repair applications. Acta Biomater 2019; 92:92-103. [PMID: 31091473 PMCID: PMC6582688 DOI: 10.1016/j.actbio.2019.05.004] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/02/2019] [Accepted: 05/03/2019] [Indexed: 12/23/2022]
Abstract
Cell-based therapies have shown significant promise in tissue engineering with one key challenge being the delivery and retention of cells. As a result, significant efforts have been made in the past decade to design injectable biomaterials to host and deliver cells at injury sites. Intervertebral disc (IVD) degeneration, a major cause of back pain, is a particularly relevant example where a minimally-invasive cellular therapy could bring significant benefits specifically at the early stages of the disease, when a cell-driven process starts in the gelatinous core of the IVD, the nucleus pulposus (NP). In this present study we explore the use of graphene oxide (GO) as nano-filler for the reinforcement of FEFKFEFK (β-sheet forming self-assembling peptide) hydrogels. Our results confirm the presence of strong interactions between FEFKFEFK and GO flakes with the peptide coating and forming short thin fibrils on the surface of the flakes. These strong interactions were found to affect the bulk properties of hybrid hydrogels. At pH 4 electrostatic interactions between the peptide fibres and the peptide-coated GO flakes are thought to govern the final bulk properties of the hydrogels while at pH 7, after conditioning with cell culture media, electrostatic interactions are removed leaving the hydrophobic interactions to govern hydrogel final properties. The GO-F820 hybrid hydrogel, with mechanical properties similar to the NP, was shown to promote high cell viability and retained cell metabolic activity in 3D over the 7 days of culture and therefore shown to harbour significant potential as an injectable hydrogel scaffold for the in-vivo delivery of NP cells. STATEMENT OF SIGNIFICANCE: Short self-assembling peptide hydrogels (SAPHs) have attracted significant interest in recent years as they can mimic the natural extra-cellular matrix, holding significant promise for the ab initio design of cells' microenvironments. Recently the design of hybrid hydrogels for biomedical applications has been explored through the incorporation of specific nanofillers. In this study we exploited graphene oxide (GO) as nanofiller to design hybrid injectable 3Dscaffolds for the delivery of nucleus pulposus cells (NPCs) for intervertebral disc regeneration. Our work clearly shows the presence of strong interactions between peptide and GO, mimicking the mechanical properties of the NP tissue and promoting high cell viability and metabolic activity. These hybrid hydrogels therefore harbour significant potential as injectable scaffolds for the in vivo delivery of NPCs.
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Affiliation(s)
- Cosimo Ligorio
- School of Materials, Faculty of Science and Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK; Manchester Institute of Biotechnology (MIB), The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Mi Zhou
- School of Materials, Faculty of Science and Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK; Manchester Institute of Biotechnology (MIB), The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Jacek K Wychowaniec
- School of Materials, Faculty of Science and Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK; Manchester Institute of Biotechnology (MIB), The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Xinyi Zhu
- Manchester Institute of Biotechnology (MIB), The University of Manchester, Oxford Road, Manchester M13 9PL, UK; School of Chemical Engineering and Analytical Sciences, Faculty of Science and Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Cian Bartlam
- School of Materials, Faculty of Science and Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Aline F Miller
- Manchester Institute of Biotechnology (MIB), The University of Manchester, Oxford Road, Manchester M13 9PL, UK; School of Chemical Engineering and Analytical Sciences, Faculty of Science and Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Aravind Vijayaraghavan
- School of Materials, Faculty of Science and Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK; National Graphene Institute (NGI), The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Judith A Hoyland
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Oxford Road, Manchester M13 9PL, UK; NIHR Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Grafton St, M13 9WU Manchester, UK
| | - Alberto Saiani
- School of Materials, Faculty of Science and Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK; Manchester Institute of Biotechnology (MIB), The University of Manchester, Oxford Road, Manchester M13 9PL, UK.
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Zhao Q, Zhao Y, Lu Z, Tang Y. Amino Acid-Modified Conjugated Oligomer Self-Assembly Hydrogel for Efficient Capture and Specific Killing of Antibiotic-Resistant Bacteria. ACS APPLIED MATERIALS & INTERFACES 2019; 11:16320-16327. [PMID: 30985103 DOI: 10.1021/acsami.9b02643] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Bacterial infection is one of main causes that threaten global human health. Especially, antibiotic-resistant bacteria like methicillin-resistant Staphylococcus aureus (MRSA) lead to high mortality rate and more expensive treatment cost. Here, a novel amino-acid-modified conjugated oligomer OTE-d-Phe was synthesized by modifying the side chain of conjugated oligo(thiophene ethynylene) with d-phenylalanine. By mixing 9-fluorenylmethyloxycarbonyl-l-phenylalanin (Fmoc-l-Phe) with OTE-d-Phe, a new and biocompatible low-molecular weight hydrogel (HG-2) was prepared through self-assembly. In solution, HG-2 can effectively capture bacteria spontaneously, such as Escherichia coli and MRSA. Most importantly, the hydrogel has specific and strong antibacterial activity against MRSA over methicillin-susceptible S. aureus, Staphylococcus epidermidis, and E. coli. Interestingly, when the hydrogel was put on a model surface, a piece of cloth, it also is able to selectively kill MRSA with low cell cytotoxicity. The antibacterial mechanism was investigated, and it demonstrated that the HG-2 interacts with and physically breaks the cell wall and membrane, which leads to MRSA death. Therefore, this new conjugated oligomer-based hydrogel provides promising applications in disinfection and therapy of MRSA in hospital and in community.
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Affiliation(s)
- Qi Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710062 , P. R. China
| | - Yantao Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710062 , P. R. China
| | - Zhuanning Lu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710062 , P. R. China
| | - Yanli Tang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710062 , P. R. China
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De France KJ, Badv M, Dorogin J, Siebers E, Panchal V, Babi M, Moran-Mirabal J, Lawlor M, Cranston ED, Hoare T. Tissue Response and Biodistribution of Injectable Cellulose Nanocrystal Composite Hydrogels. ACS Biomater Sci Eng 2019; 5:2235-2246. [PMID: 33405775 DOI: 10.1021/acsbiomaterials.9b00522] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Interest in cellulose nanocrystal (CNC)-based hydrogels for drug delivery, tissue engineering, and other biomedical applications has rapidly expanded despite the minimal in vivo research reported to date. Herein, we assess both in vitro protein adsorption and cell adhesion as well as in vivo subcutaneous tissue responses and CNC biodistribution of injectable CNC-poly(oligoethylene glycol methacrylate) (POEGMA) hydrogels. Hydrogels with different PEG side chain lengths, CNC loadings, and with or without in situ magnetic alignment of the CNCs are compared. CNC loading has a minimal impact on protein adsorption but significantly increases cell adhesion. In vivo, both CNC-only and CNC-POEGMA injections largely stay at their subcutaneous injection site over one month, with minimal bioaccumulation of CNCs in any typical clearance organ. CNC-POEGMA hydrogels exhibit mild acute and chronic inflammatory responses, although significant fibroblast penetration was observed with the magnetically aligned hydrogels. Collectively, these results suggest that CNC-POEGMA hydrogels offer promise in practical biomedical applications.
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Affiliation(s)
| | | | | | - Emily Siebers
- Department of Pathology and Laboratory Medicine and Neuroscience Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, Wisconsin 53226, United States
| | | | | | | | - Michael Lawlor
- Department of Pathology and Laboratory Medicine and Neuroscience Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, Wisconsin 53226, United States
| | - Emily D Cranston
- Department of Wood Science, University of British Columbia, 2424 Main Mall, Vancouver, British Columbia V6T 1Z4, Canada.,Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, British Columbus V6T 1Z3, Canada
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39
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Reja RM, Patel R, Kumar V, Jha A, Gopi HN. Divergent Supramolecular Gelation of Backbone Modified Short Hybrid δ-Peptides. Biomacromolecules 2019; 20:1254-1262. [DOI: 10.1021/acs.biomac.8b01684] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rahi M. Reja
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune-411008, India
| | - Rajat Patel
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune-411008, India
| | - Vivek Kumar
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune-411008, India
| | - Anjali Jha
- Nanobioscience Group, Agharkar Research Institute, G. G. Agarkar Road, Pune-411004, India
| | - Hosahudya N. Gopi
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune-411008, India
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40
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Teng L, Chen Y, Jia YG, Ren L. Supramolecular and dynamic covalent hydrogel scaffolds: from gelation chemistry to enhanced cell retention and cartilage regeneration. J Mater Chem B 2019; 7:6705-6736. [DOI: 10.1039/c9tb01698h] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review highlights the most recent progress in gelation strategies of biomedical supramolecular and dynamic covalent crosslinking hydrogels and their applications for enhancing cell retention and cartilage regeneration.
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Affiliation(s)
- Lijing Teng
- School of Medicine
- South China University of Technology
- Guangzhou 510006
- China
- National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Yunhua Chen
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
- Guangzhou 510006
- China
- School of Materials Science and Engineering
| | - Yong-Guang Jia
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
- Guangzhou 510006
- China
- School of Materials Science and Engineering
| | - Li Ren
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
- Guangzhou 510006
- China
- School of Materials Science and Engineering
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41
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Hong A, Aguilar MI, Del Borgo MP, Sobey CG, Broughton BRS, Forsythe JS. Self-assembling injectable peptide hydrogels for emerging treatment of ischemic stroke. J Mater Chem B 2019. [DOI: 10.1039/c9tb00257j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ischaemic stroke remains one of the leading causes of death and disability worldwide, without any long-term effective treatments targeted at regeneration. This has led to developments of novel, biomaterial-based strategies using self-assembling peptide hydrogels.
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Affiliation(s)
- Andrew Hong
- Department of Materials Science and Engineering
- Monash Institute of Medical Engineering
- Monash University
- Clayton
- Australia
| | - Marie-Isabel Aguilar
- Department of Biochemistry & Molecular Biology
- Monash Biomedicine Discovery Institute
- Monash University
- Clayton
- Australia
| | - Mark P. Del Borgo
- Department of Biochemistry & Molecular Biology
- Monash Biomedicine Discovery Institute
- Monash University
- Clayton
- Australia
| | - Christopher G. Sobey
- Vascular Biology and Immunopharmacology Group
- Department of Physiology
- Anatomy and Microbiology
- La Trobe University
- Bundoora
| | - Brad R. S. Broughton
- Cardiovascular & Pulmonary Pharmacology Group
- Biomedicine Discovery Institute and Department of Pharmacology
- Monash University
- Clayton
- Australia
| | - John S. Forsythe
- Department of Materials Science and Engineering
- Monash Institute of Medical Engineering
- Monash University
- Clayton
- Australia
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42
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Ashammakhi N, Ahadian S, Darabi MA, El Tahchi M, Lee J, Suthiwanich K, Sheikhi A, Dokmeci MR, Oklu R, Khademhosseini A. Minimally Invasive and Regenerative Therapeutics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1804041. [PMID: 30565732 PMCID: PMC6709364 DOI: 10.1002/adma.201804041] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 08/20/2018] [Indexed: 05/03/2023]
Abstract
Advances in biomaterial synthesis and fabrication, stem cell biology, bioimaging, microsurgery procedures, and microscale technologies have made minimally invasive therapeutics a viable tool in regenerative medicine. Therapeutics, herein defined as cells, biomaterials, biomolecules, and their combinations, can be delivered in a minimally invasive way to regenerate different tissues in the body, such as bone, cartilage, pancreas, cardiac, skeletal muscle, liver, skin, and neural tissues. Sophisticated methods of tracking, sensing, and stimulation of therapeutics in vivo using nano-biomaterials and soft bioelectronic devices provide great opportunities to further develop minimally invasive and regenerative therapeutics (MIRET). In general, minimally invasive delivery methods offer high yield with low risk of complications and reduced costs compared to conventional delivery methods. Here, minimally invasive approaches for delivering regenerative therapeutics into the body are reviewed. The use of MIRET to treat different tissues and organs is described. Although some clinical trials have been performed using MIRET, it is hoped that such therapeutics find wider applications to treat patients. Finally, some future perspective and challenges for this emerging field are highlighted.
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Affiliation(s)
- Nureddin Ashammakhi
- Center for Minimally Invasive Therapeutics (C-MIT), University of California - Los Angeles, Los Angeles, California, USA
- California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, California, USA
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
- Division of Plastic Surgery, Department of Surgery, Oulu University, Oulu, Finland
| | - Samad Ahadian
- Center for Minimally Invasive Therapeutics (C-MIT), University of California - Los Angeles, Los Angeles, California, USA
- California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, California, USA
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
| | - Mohammad Ali Darabi
- Center for Minimally Invasive Therapeutics (C-MIT), University of California - Los Angeles, Los Angeles, California, USA
- California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, California, USA
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
| | - Mario El Tahchi
- Center for Minimally Invasive Therapeutics (C-MIT), University of California - Los Angeles, Los Angeles, California, USA
- California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, California, USA
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
- LBMI, Department of Physics, Lebanese University - Faculty of Sciences 2, PO Box 90656, Jdeidet, Lebanon
| | - Junmin Lee
- Center for Minimally Invasive Therapeutics (C-MIT), University of California - Los Angeles, Los Angeles, California, USA
- California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, California, USA
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
| | - Kasinan Suthiwanich
- Center for Minimally Invasive Therapeutics (C-MIT), University of California - Los Angeles, Los Angeles, California, USA
- California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, California, USA
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo, Japan
| | - Amir Sheikhi
- Center for Minimally Invasive Therapeutics (C-MIT), University of California - Los Angeles, Los Angeles, California, USA
- California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, California, USA
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
| | - Mehmet R. Dokmeci
- Center for Minimally Invasive Therapeutics (C-MIT), University of California - Los Angeles, Los Angeles, California, USA
- California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, California, USA
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
| | - Rahmi Oklu
- Division of Interventional Radiology, Department of Radiology, Mayo Clinic, Scottsdale, USA
| | - Ali Khademhosseini
- Center for Minimally Invasive Therapeutics (C-MIT), University of California - Los Angeles, Los Angeles, California, USA
- California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, California, USA
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
- Department of Radiological Sciences, University of California - Los Angeles, Los Angeles, California, USA
- Department of Chemical and Biomolecular Engineering, University of California - Los Angeles, Los Angeles, California, USA
- Center of Nanotechnology, Department of Physics, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul, Republic of Korea
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43
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Liang K, Bae KH, Kurisawa M. Recent advances in the design of injectable hydrogels for stem cell-based therapy. J Mater Chem B 2019. [DOI: 10.1039/c9tb00485h] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The recent advances in the design of injectable hydrogels for stem cell delivery, especially for in vivo applications, are overviewed in this review.
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Affiliation(s)
- Kun Liang
- Institute of Bioengineering and Nanotechnology
- Singapore 138669
- Singapore
| | - Ki Hyun Bae
- Institute of Bioengineering and Nanotechnology
- Singapore 138669
- Singapore
| | - Motoichi Kurisawa
- Institute of Bioengineering and Nanotechnology
- Singapore 138669
- Singapore
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44
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Raza F, Zafar H, You X, Khan A, Wu J, Ge L. Cancer nanomedicine: focus on recent developments and self-assembled peptide nanocarriers. J Mater Chem B 2019; 7:7639-7655. [DOI: 10.1039/c9tb01842e] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The applications of nanoparticulate drug delivery have received abundant interest in the field of cancer diagnosis and treatment.
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Affiliation(s)
- Faisal Raza
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
- State Key Laboratory of Natural Medicines and Department of Pharmaceutics
| | - Hajra Zafar
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Xinru You
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong, Province
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- P. R. China
| | - Asifullah Khan
- State Key Laboratory of Natural Medicines and Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing
- China
| | - Jun Wu
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong, Province
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- P. R. China
| | - Liang Ge
- State Key Laboratory of Natural Medicines and Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing
- China
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Joas S, Tovar GEM, Celik O, Bonten C, Southan A. Extrusion-Based 3D Printing of Poly(ethylene glycol) Diacrylate Hydrogels Containing Positively and Negatively Charged Groups. Gels 2018; 4:E69. [PMID: 30674845 PMCID: PMC6209279 DOI: 10.3390/gels4030069] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/30/2018] [Accepted: 08/08/2018] [Indexed: 12/27/2022] Open
Abstract
Hydrogels are an interesting class of materials used in extrusion-based 3D printing, e.g., for drug delivery or tissue engineering. However, new hydrogel formulations for 3D printing as well as a detailed understanding of crucial formulation properties for 3D printing are needed. In this contribution, hydrogels based on poly(ethylene glycol) diacrylate (PEG-DA) and the charged monomers 3-sulfopropyl acrylate and [2-(acryloyloxy)ethyl]trimethylammonium chloride are formulated for 3D printing, together with Poloxamer 407 (P407). Chemical curing of formulations with PEG-DA and up to 5% (w/w) of the charged monomers was possible without difficulty. Through careful examination of the rheological properties of the non-cured formulations, it was found that flow properties of formulations with a high P407 concentration of 22.5% (w/w) possessed yield stresses well above 100 Pa together with pronounced shear thinning behavior. Thus, those formulations could be processed by 3D printing, as demonstrated by the generation of pyramidal objects. Modelling of the flow profile during 3D printing suggests that a plug-like laminar flow is prevalent inside the printer capillary. Under such circumstances, fast recovery of a high vicosity after material deposition might not be necessary to guarantee shape fidelity because the majority of the 3D printed volume does not face any relevant shear stress during printing.
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Affiliation(s)
- Sebastian Joas
- Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Nobelstr. 12, 70569 Stuttgart, Germany.
- Institut für Kunststofftechnik IKT, University of Stuttgart, Pfaffenwaldring 32, 70569 Stuttgart, Germany.
| | - Günter E M Tovar
- Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Nobelstr. 12, 70569 Stuttgart, Germany.
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstr. 12, 70569 Stuttgart, Germany.
| | - Oguz Celik
- Institut für Kunststofftechnik IKT, University of Stuttgart, Pfaffenwaldring 32, 70569 Stuttgart, Germany.
| | - Christian Bonten
- Institut für Kunststofftechnik IKT, University of Stuttgart, Pfaffenwaldring 32, 70569 Stuttgart, Germany.
| | - Alexander Southan
- Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Nobelstr. 12, 70569 Stuttgart, Germany.
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Liu R, Shi Z, Sun J, Li Z. Enzyme responsive supramolecular hydrogels assembled from nonionic peptide amphiphiles. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9282-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Lou J, Liu F, Lindsay CD, Chaudhuri O, Heilshorn SC, Xia Y. Dynamic Hyaluronan Hydrogels with Temporally Modulated High Injectability and Stability Using a Biocompatible Catalyst. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1705215. [PMID: 29682801 DOI: 10.1002/adma.201705215] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 02/17/2018] [Indexed: 05/25/2023]
Abstract
Injectable and biocompatible hydrogels have become increasingly important for cell transplantation to provide mechanical protection of cells during injection and a stable scaffold for cell adhesion post-injection. Injectable hydrogels need to be easily pushed through a syringe needle and quickly recover to a gel state, thus generally requiring noncovalent or dynamic cross-linking. However, a dilemma exists in the design of dynamic hydrogels: hydrogels with fast exchange of cross-links are easier to eject using less force, but lack long-term stability; in contrast, slow exchange of cross-links improves stability, but compromises injectability and thus the ability to protect cells under flow. A new concept to resolve this dilemma using a biocompatible catalyst to modulate the dynamic properties of hydrogels at different time points of application to have both high injectability and high stability is presented. Hyaluronic acid based hydrogels are formed through dynamic covalent hydrazone cross-linking in the presence of a biocompatible benzimidazole-based catalyst. The catalyst accelerates the formation and exchange of hydrazone bonds, enhancing injectability, but rapidly diffuses away from the hydrogel after injection to retard the exchange and improve the long-term stability for cell culture.
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Affiliation(s)
- Junzhe Lou
- Department of Chemistry, Stanford University, Stanford, CA, 94305, USA
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Fang Liu
- Department of Chemistry, Stanford University, Stanford, CA, 94305, USA
| | - Christopher D Lindsay
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Ovijit Chaudhuri
- Department of Mechanical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Sarah C Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Yan Xia
- Department of Chemistry, Stanford University, Stanford, CA, 94305, USA
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48
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Madl CM, Heilshorn SC, Blau HM. Bioengineering strategies to accelerate stem cell therapeutics. Nature 2018; 557:335-342. [PMID: 29769665 PMCID: PMC6773426 DOI: 10.1038/s41586-018-0089-z] [Citation(s) in RCA: 249] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 03/16/2018] [Indexed: 02/06/2023]
Abstract
Although only a few stem cell-based therapies are currently available to patients, stem cells hold tremendous regenerative potential, and several exciting clinical applications are on the horizon. Biomaterials with tuneable mechanical and biochemical properties can preserve stem cell function in culture, enhance survival of transplanted cells and guide tissue regeneration. Rapid progress with three-dimensional hydrogel culture platforms provides the opportunity to grow patient-specific organoids, and has led to the discovery of drugs that stimulate endogenous tissue-specific stem cells and enabled screens for drugs to treat disease. Therefore, bioengineering technologies are poised to overcome current bottlenecks and revolutionize the field of regenerative medicine.
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Affiliation(s)
- Christopher M Madl
- Baxter Laboratory for Stem Cell Biology, Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - Sarah C Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, California, USA
| | - Helen M Blau
- Baxter Laboratory for Stem Cell Biology, Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA.
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Yamada Y, Chowdhury A, Schneider JP, Stetler-Stevenson WG. Macromolecule-Network Electrostatics Controlling Delivery of the Biotherapeutic Cell Modulator TIMP-2. Biomacromolecules 2018; 19:1285-1293. [PMID: 29505725 PMCID: PMC6329387 DOI: 10.1021/acs.biomac.8b00107] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Tissue inhibitor of metalloproteinase 2 (TIMP-2) is an endogenous 22 kDa proteinase inhibitor, demonstrating antitumorigenic, antimetastatic and antiangiogenic activities in vitro and in vivo. Recombinant TIMP-2 is currently undergoing preclinical testing in multiple, murine tumor models. Here we report the development of an inert, injectable peptide hydrogel matrix enabling encapsulation and sustained release of TIMP-2. We studied the TIMP-2 release profile from four β-hairpin peptide gels of varying net electrostatic charge. A negatively charged peptide gel (designated AcVES3) enabling encapsulation of 4 mg/mL of TIMP-2, without effects on rheological properties, facilitated the slow sustained release (0.9%/d) of TIMP-2 over 28 d. Released TIMP-2 is structurally intact and maintains the ability to inhibit MMP activity, as well as suppress lung cancer cell proliferation in vitro. These findings suggest that the AcVES3 hydrogel will be useful as an injectable vehicle for systemic delivery of TIMP-2 in vivo for ongoing preclinical development.
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Affiliation(s)
- Yuji Yamada
- Chemical Biology Laboratory, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21701, United States
| | - Ananda Chowdhury
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Joel P. Schneider
- Chemical Biology Laboratory, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21701, United States
| | - William G. Stetler-Stevenson
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
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Madl CM, Heilshorn SC. Bioorthogonal Strategies for Engineering Extracellular Matrices. ADVANCED FUNCTIONAL MATERIALS 2018; 28:1706046. [PMID: 31558890 PMCID: PMC6761700 DOI: 10.1002/adfm.201706046] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Hydrogels are commonly used as engineered extracellular matrix (ECM) mimics in applications ranging from tissue engineering to in vitro disease models. Ideal mechanisms used to crosslink ECM-mimicking hydrogels do not interfere with the biology of the system. However, most common hydrogel crosslinking chemistries exhibit some form of cross-reactivity. The field of bio-orthogonal chemistry has arisen to address the need for highly specific and robust reactions in biological contexts. Accordingly, bio-orthogonal crosslinking strategies have been incorporated into hydrogel design, allowing for gentle and efficient encapsulation of cells in various hydrogel materials. Furthermore, the selective nature of bio-orthogonal chemistries can permit dynamic modification of hydrogel materials in the presence of live cells and other biomolecules to alter matrix mechanical properties and biochemistry on demand. In this review, we provide an overview of bio-orthogonal strategies used to prepare cell-encapsulating hydrogels and highlight the potential applications of bio-orthogonal chemistries in the design of dynamic engineered ECMs.
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Affiliation(s)
- Christopher M Madl
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Sarah C Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA,
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