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Liu Q, Xie J, Zhou R, Deng J, Nie W, Sun S, Wang H, Shi C. A matrix metalloproteinase-responsive hydrogel system controls angiogenic peptide release for repair of cerebral ischemia/reperfusion injury. Neural Regen Res 2025; 20:503-517. [PMID: 38819063 PMCID: PMC11317963 DOI: 10.4103/nrr.nrr-d-23-01322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 12/12/2023] [Accepted: 01/29/2024] [Indexed: 06/01/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202502000-00028/figure1/v/2024-05-28T214302Z/r/image-tiff Vascular endothelial growth factor and its mimic peptide KLTWQELYQLKYKGI (QK) are widely used as the most potent angiogenic factors for the treatment of multiple ischemic diseases. However, conventional topical drug delivery often results in a burst release of the drug, leading to transient retention (inefficacy) and undesirable diffusion (toxicity) in vivo. Therefore, a drug delivery system that responds to changes in the microenvironment of tissue regeneration and controls vascular endothelial growth factor release is crucial to improve the treatment of ischemic stroke. Matrix metalloproteinase-2 (MMP-2) is gradually upregulated after cerebral ischemia. Herein, vascular endothelial growth factor mimic peptide QK was self-assembled with MMP-2-cleaved peptide PLGLAG (TIMP) and customizable peptide amphiphilic (PA) molecules to construct nanofiber hydrogel PA-TIMP-QK. PA-TIMP-QK was found to control the delivery of QK by MMP-2 upregulation after cerebral ischemia/reperfusion and had a similar biological activity with vascular endothelial growth factor in vitro. The results indicated that PA-TIMP-QK promoted neuronal survival, restored local blood circulation, reduced blood-brain barrier permeability, and restored motor function. These findings suggest that the self-assembling nanofiber hydrogel PA-TIMP-QK may provide an intelligent drug delivery system that responds to the microenvironment and promotes regeneration and repair after cerebral ischemia/reperfusion injury.
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Affiliation(s)
- Qi Liu
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, China
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Jianye Xie
- Department of General Practice, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Runxue Zhou
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, China
| | - Jin Deng
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, China
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Weihong Nie
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, China
| | - Shuwei Sun
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, China
| | - Haiping Wang
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Chunying Shi
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, China
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Li Y, Hu L, Wang J, Wang H. Clustering of the Membrane Protein by Molecular Self-Assembly Downregulates the Signaling Pathway for Cancer Cell Inhibition. NANO LETTERS 2024. [PMID: 39158180 DOI: 10.1021/acs.nanolett.4c03217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/20/2024]
Abstract
This work reports a cyclic peptide appended self-assembled scaffold that recognizes the membrane protein EGFR and arrests the EGFR signaling through multivalent interactions by assembly-induced aggregation. When incubated with cells, the oligomers of PAD-1 first recognize the overexpressed EGFR on cancer cell membranes for arresting EGFR, which then initiates cellular uptake through endocytosis. The accumulation of PAD-1 and EGFR in the lysosome results in the formation of nanofibers, leading to the lysosomal membrane permeabilization (LMP). These processes disrupt the homeostasis of EGFR and inhibit the downstream signaling transduction of EGFR for cancer cell survival. Moreover, LMP induced the release of protein aggregates that could generate endoplasmic reticulum (ER) stress, resulting in cancer cell death selectively. In vivo studies indicate the efficient antitumor efficiency of PAD-1 in tumor-bearing mice. As a first example, this work provides an alternative strategy for controlling protein behavior for tuning cellular events in living cells.
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Affiliation(s)
- Ying Li
- Department of Chemistry, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
- Department of Chemistry, School of Science, Westlake University; Institute of Natural Sciences, Westlake Institute for Advanced Study, No. 600 Dunyu Road, Hangzhou 310024, Zhejiang Province, China
| | - Liangbo Hu
- Department of Chemistry, School of Science, Westlake University; Institute of Natural Sciences, Westlake Institute for Advanced Study, No. 600 Dunyu Road, Hangzhou 310024, Zhejiang Province, China
| | - Jing Wang
- Department of Chemistry, School of Science, Westlake University; Institute of Natural Sciences, Westlake Institute for Advanced Study, No. 600 Dunyu Road, Hangzhou 310024, Zhejiang Province, China
| | - Huaimin Wang
- Department of Chemistry, School of Science, Westlake University; Institute of Natural Sciences, Westlake Institute for Advanced Study, No. 600 Dunyu Road, Hangzhou 310024, Zhejiang Province, China
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3
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Zheng D, Guo J, Liang Z, Jin Y, Ding Y, Liu J, Qi C, Shi K, Xie L, Zhu M, Wang L, Hu Z, Yang Z, Liu Q, Li X, Ning W, Gao J. Supramolecular Nanofibers Ameliorate Bleomycin-Induced Pulmonary Fibrosis by Restoring Autophagy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2401327. [PMID: 38725147 PMCID: PMC11267363 DOI: 10.1002/advs.202401327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/02/2024] [Indexed: 07/25/2024]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive and ultimately fatal interstitial lung disease, with limited therapeutic options available. Impaired autophagy resulting from aberrant TRB3/p62 protein-protein interactions (PPIs) contributes to the progression of IPF. Restoration of autophagy by modulating the TRB3/p62 PPIs has rarely been reported for the treatment of IPF. Herein, peptide nanofibers are developed that specifically bind to TRB3 protein and explored their potential as a therapeutic approach for IPF. By conjugating with the self-assembling fragment (Ac-GFFY), a TRB3-binding peptide motif A2 allows for the formation of nanofibers with a stable α-helix secondary structure. The resulting peptide (Ac-GFFY-A2) nanofibers exhibit specific high-affinity binding to TRB3 protein in saline buffer and better capacity of cellular uptake to A2 peptide. Furthermore, the TRB3-targeting peptide nanofibers efficiently interfere with the aberrant TRB3/p62 PPIs in activated fibroblasts and fibrotic lung tissue of mice, thereby restoring autophagy dysfunction. The TRB3-targeting peptide nanofibers inhibit myofibroblast differentiation, collagen production, and fibroblast migration in vitro is demonstrated, as well as bleomycin-induced pulmonary fibrosis in vivo. This study provides a supramolecular method to modulate PPIs and highlights a promising strategy for treating IPF diseases by restoring autophagy.
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Affiliation(s)
- Debin Zheng
- Beijing Key Laboratory of Disaster MedicineMedical Innovation Research Division of the Chinese PLA General HospitalNo. 28 Fu Xing RoadBeijing100853P. R. China
- State Key Laboratory of Medicinal Chemical BiologyKey Laboratory of Bioactive Materials (Ministry of Education)College of Life SciencesNankai International Advanced Research Institute (SHENZHEN FUTIAN)Nankai UniversityTianjin300071P. R. China
| | - Jiasen Guo
- State Key Laboratory of Medicinal Chemical BiologyKey Laboratory of Bioactive Materials (Ministry of Education)College of Life SciencesNankai International Advanced Research Institute (SHENZHEN FUTIAN)Nankai UniversityTianjin300071P. R. China
| | - Ziyi Liang
- State Key Laboratory of Medicinal Chemical BiologyKey Laboratory of Bioactive Materials (Ministry of Education)College of Life SciencesNankai International Advanced Research Institute (SHENZHEN FUTIAN)Nankai UniversityTianjin300071P. R. China
| | - Yueyue Jin
- State Key Laboratory of Medicinal Chemical BiologyKey Laboratory of Bioactive Materials (Ministry of Education)College of Life SciencesNankai International Advanced Research Institute (SHENZHEN FUTIAN)Nankai UniversityTianjin300071P. R. China
| | - Yinghao Ding
- State Key Laboratory of Medicinal Chemical BiologyKey Laboratory of Bioactive Materials (Ministry of Education)College of Life SciencesNankai International Advanced Research Institute (SHENZHEN FUTIAN)Nankai UniversityTianjin300071P. R. China
| | - Jingfei Liu
- State Key Laboratory of Medicinal Chemical BiologyKey Laboratory of Bioactive Materials (Ministry of Education)College of Life SciencesNankai International Advanced Research Institute (SHENZHEN FUTIAN)Nankai UniversityTianjin300071P. R. China
| | - Chao Qi
- State Key Laboratory of Medicinal Chemical BiologyKey Laboratory of Bioactive Materials (Ministry of Education)College of Life SciencesNankai International Advanced Research Institute (SHENZHEN FUTIAN)Nankai UniversityTianjin300071P. R. China
| | - Kaiwen Shi
- Beijing Key Laboratory of Disaster MedicineMedical Innovation Research Division of the Chinese PLA General HospitalNo. 28 Fu Xing RoadBeijing100853P. R. China
| | - Limin Xie
- State Key Laboratory of Medicinal Chemical BiologyKey Laboratory of Bioactive Materials (Ministry of Education)College of Life SciencesNankai International Advanced Research Institute (SHENZHEN FUTIAN)Nankai UniversityTianjin300071P. R. China
| | - Meiqi Zhu
- Beijing Key Laboratory of Disaster MedicineMedical Innovation Research Division of the Chinese PLA General HospitalNo. 28 Fu Xing RoadBeijing100853P. R. China
| | - Ling Wang
- State Key Laboratory of Medicinal Chemical BiologyCollege of PharmacyNankai UniversityTianjin300071P. R. China
| | - Zhiwen Hu
- State Key Laboratory of Medicinal Chemical BiologyKey Laboratory of Bioactive Materials (Ministry of Education)College of Life SciencesNankai International Advanced Research Institute (SHENZHEN FUTIAN)Nankai UniversityTianjin300071P. R. China
| | - Zhimou Yang
- State Key Laboratory of Medicinal Chemical BiologyKey Laboratory of Bioactive Materials (Ministry of Education)College of Life SciencesNankai International Advanced Research Institute (SHENZHEN FUTIAN)Nankai UniversityTianjin300071P. R. China
| | - Qian Liu
- Department of UrologyTianjin First Central HospitalTianjin300192P. R. China
| | - Xiaoxue Li
- Beijing Key Laboratory of Disaster MedicineMedical Innovation Research Division of the Chinese PLA General HospitalNo. 28 Fu Xing RoadBeijing100853P. R. China
| | - Wen Ning
- State Key Laboratory of Medicinal Chemical BiologyKey Laboratory of Bioactive Materials (Ministry of Education)College of Life SciencesNankai International Advanced Research Institute (SHENZHEN FUTIAN)Nankai UniversityTianjin300071P. R. China
| | - Jie Gao
- State Key Laboratory of Medicinal Chemical BiologyKey Laboratory of Bioactive Materials (Ministry of Education)College of Life SciencesNankai International Advanced Research Institute (SHENZHEN FUTIAN)Nankai UniversityTianjin300071P. R. China
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Sangji MH, Lee SR, Sai H, Weigand S, Palmer LC, Stupp SI. Self-Sorting vs Coassembly in Peptide Amphiphile Supramolecular Nanostructures. ACS NANO 2024; 18:15878-15887. [PMID: 38848478 DOI: 10.1021/acsnano.4c03083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
The functionality of supramolecular nanostructures can be expanded if systems containing multiple components are designed to either self-sort or mix into coassemblies. This is critical to gain the ability to craft self-assembling materials that integrate functions, and our understanding of this process is in its early stages. In this work, we have utilized three different peptide amphiphiles with the capacity to form β-sheets within supramolecular nanostructures and found binary systems that self-sort and others that form coassemblies. This was measured using atomic force microscopy to reveal the nanoscale morphology of assemblies and confocal laser scanning microscopy to determine the distribution of fluorescently labeled monomers. We discovered that PA assemblies with opposite supramolecular chirality self-sorted into chemically distinct nanostructures. In contrast, the PA molecules that formed a mixture of right-handed, left-handed, and flat nanostructures on their own were able to coassemble with the other PA molecules. We attribute this phenomenon to the energy barrier associated with changing the handedness of a β-sheet twist in a coassembly of two different PA molecules. This observation could be useful for designing biomolecular nanostructures with dual bioactivity or interpenetrating networks of PA supramolecular assemblies.
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Affiliation(s)
- M Hussain Sangji
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Sieun Ruth Lee
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Hiroaki Sai
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E Superior St., Chicago, Illinois 60611, United States
| | - Steven Weigand
- DuPont-Northwestern-Dow Collaborative Access Team Synchrotron Research Center, Northwestern University, Advanced Photon Source/Argonne National Laboratory 432-A004, Argonne, Illinois 60439, United States
| | - Liam C Palmer
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E Superior St., Chicago, Illinois 60611, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E Superior St., Chicago, Illinois 60611, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, 676 N St. Clair Street, Chicago, Illinois 60611, United States
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5
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Song P, Han T, Wu Z, Fang H, Liu Y, Ying W, Wang X, Shen C. Transplantation of Neural Stem Cells Loaded in an IGF-1 Bioactive Supramolecular Nanofiber Hydrogel for the Effective Treatment of Spinal Cord Injury. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306577. [PMID: 38441409 PMCID: PMC11077690 DOI: 10.1002/advs.202306577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/11/2024] [Indexed: 05/09/2024]
Abstract
Spinal cord injury (SCI) leads to massive cell death, disruption, and demyelination of axons, resulting in permanent motor and sensory dysfunctions. Stem cell transplantation is a promising therapy for SCI. However, owing to the poor microenvironment that develops following SCI, the bioactivities of these grafted stem cells are limited. Cell implantation combined with biomaterial therapies is widely studied for the development of tissue engineering technology. Herein, an insulin-like growth factor-1 (IGF-1)-bioactive supramolecular nanofiber hydrogel (IGF-1 gel) is synthesized that can activate IGF-1 downstream signaling, prevent the apoptosis of neural stem cells (NSCs), improve their proliferation, and induce their differentiation into neurons and oligodendrocytes. Moreover, implantation of NSCs carried out with IGF-1 gels promotes neurite outgrowth and myelin sheath regeneration at lesion sites following SCI. In addition, IGF-1 gels can enrich extracellular vesicles (EVs) derived from NSCs or from nerve cells differentiated from these NSCs via miRNAs related to axonal regeneration and remyelination, even in an inflammatory environment. These EVs are taken up by autologous endogenous NSCs and regulate their differentiation. This study provides adequate evidence that combined treatment with NSCs and IGF-1 gels is a potential therapeutic strategy for treating SCI.
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Affiliation(s)
- Peiwen Song
- Department of Orthopedics (Spinal Surgery)Laboratory of Spinal and Spinal Cord Injury Regeneration and RepairThe First Affiliated Hospital of Anhui Medical UniversityHefei230032China
- Anhui Province Research Center for the Clinical Application of Medical TechnologyThe First Affiliated Hospital of Anhui Medical UniversityHefei230032China
| | - Tianyu Han
- Department of Orthopedics (Spinal Surgery)Laboratory of Spinal and Spinal Cord Injury Regeneration and RepairThe First Affiliated Hospital of Anhui Medical UniversityHefei230032China
- Anhui Province Research Center for the Clinical Application of Medical TechnologyThe First Affiliated Hospital of Anhui Medical UniversityHefei230032China
| | - Zuomeng Wu
- Department of Orthopedics (Spinal Surgery)Laboratory of Spinal and Spinal Cord Injury Regeneration and RepairThe First Affiliated Hospital of Anhui Medical UniversityHefei230032China
- Anhui Province Research Center for the Clinical Application of Medical TechnologyThe First Affiliated Hospital of Anhui Medical UniversityHefei230032China
| | - Huang Fang
- Department of Orthopedics (Spinal Surgery)The First Affiliated Hospital of USTCHefei230032China
| | - Yunlei Liu
- Department of Clinical LaboratoryThe First Affiliated Hospital of Anhui Medical UniversityHefei230032China
| | - Wang Ying
- Department of Medical ImagingThe First Affiliated Hospital of Anhui Medical UniversityHefei230032China
| | - Xianwen Wang
- School of Biomedical EngineeringResearch and Engineering Center of Biomedical MaterialsAnhui Provincial Institute of Translational MedicineAnhui Medical UniversityHefei230032P. R. China
| | - Cailiang Shen
- Department of Orthopedics (Spinal Surgery)Laboratory of Spinal and Spinal Cord Injury Regeneration and RepairThe First Affiliated Hospital of Anhui Medical UniversityHefei230032China
- Anhui Province Research Center for the Clinical Application of Medical TechnologyThe First Affiliated Hospital of Anhui Medical UniversityHefei230032China
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Dranseike D, Ota Y, Edwardson TGW, Guzzi EA, Hori M, Nakic ZR, Deshmukh DV, Levasseur MD, Mattli K, Tringides CM, Zhou J, Hilvert D, Peters C, Tibbitt MW. Designed modular protein hydrogels for biofabrication. Acta Biomater 2024; 177:107-117. [PMID: 38382830 DOI: 10.1016/j.actbio.2024.02.019] [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] [Received: 10/03/2023] [Revised: 02/01/2024] [Accepted: 02/13/2024] [Indexed: 02/23/2024]
Abstract
Designing proteins that fold and assemble over different length scales provides a way to tailor the mechanical properties and biological performance of hydrogels. In this study, we designed modular proteins that self-assemble into fibrillar networks and, as a result, form hydrogel materials with novel properties. We incorporated distinct functionalities by connecting separate self-assembling (A block) and cell-binding (B block) domains into single macromolecules. The number of self-assembling domains affects the rigidity of the fibers and the final storage modulus G' of the materials. The mechanical properties of the hydrogels could be tuned over a broad range (G' = 0.1 - 10 kPa), making them suitable for the cultivation and differentiation of multiple cell types, including cortical neurons and human mesenchymal stem cells. Moreover, we confirmed the bioavailability of cell attachment domains in the hydrogels that can be further tailored for specific cell types or other biological applications. Finally, we demonstrate the versatility of the designed proteins for application in biofabrication as 3D scaffolds that support cell growth and guide their function. STATEMENT OF SIGNIFICANCE: Designed proteins that enable the decoupling of biophysical and biochemical properties within the final material could enable modular biomaterial engineering. In this context, we present a designed modular protein platform that integrates self-assembling domains (A blocks) and cell-binding domains (B blocks) within a single biopolymer. The linking of assembly domains and cell-binding domains this way provided independent tuning of mechanical properties and inclusion of biofunctional domains. We demonstrate the use of this platform for biofabrication, including neural cell culture and 3D printing of scaffolds for mesenchymal stem cell culture and differentiation. Overall, this work highlights how informed design of biopolymer sequences can enable the modular design of protein-based hydrogels with independently tunable biophysical and biochemical properties.
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Affiliation(s)
- Dalia Dranseike
- Macromolecular Engineering Laboratory, ETH Zurich, Zurich, Switzerland
| | - Yusuke Ota
- Organic Chemistry Laboratory, ETH Zurich, Zurich, Switzerland
| | | | - Elia A Guzzi
- Macromolecular Engineering Laboratory, ETH Zurich, Zurich, Switzerland
| | - Mao Hori
- Organic Chemistry Laboratory, ETH Zurich, Zurich, Switzerland
| | | | | | | | - Kevin Mattli
- Biosystems Technology, ZHAW, Wädenswil, Switzerland
| | | | - Jiangtao Zhou
- Laboratory of Food and Soft Materials, ETH Zurich, Switzerland
| | - Donald Hilvert
- Organic Chemistry Laboratory, ETH Zurich, Zurich, Switzerland.
| | | | - Mark W Tibbitt
- Macromolecular Engineering Laboratory, ETH Zurich, Zurich, Switzerland.
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Roy A, Hao L, Francisco J, Guan J, Mareedu S, Zhai P, Dodd-O J, Heffernan C, Del Re D, Lee EJA, Kumar VA. Injectable Peptide Hydrogels Loaded with Murine Embryonic Stem Cells Relieve Ischemia In Vivo after Myocardial Infarction. Biomacromolecules 2024; 25:1319-1329. [PMID: 38291600 DOI: 10.1021/acs.biomac.3c01345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Myocardial infarction (MI) is a major cause of morbidity and mortality worldwide, especially in aging and metabolically unhealthy populations. A major target of regenerative tissue engineering is the restoration of viable cardiomyocytes to preserve cardiac function and circumvent the progression to heart failure post-MI. Amelioration of ischemia is a crucial component of such restorative strategies. Angiogenic β-sheet peptides can self-assemble into thixotropic nanofibrous hydrogels. These syringe aspiratable cytocompatible gels were loaded with stem cells and showed excellent cytocompatibility and minimal impact on the storage and loss moduli of hydrogels. Gels with and without cells were delivered into the myocardium of a mouse MI model (LAD ligation). Cardiac function and tissue remodeling were evaluated up to 4 weeks in vivo. Injectable peptide hydrogels synergized with loaded murine embryonic stem cells to demonstrate enhanced survival after intracardiac delivery during the acute phase post-MI, especially at 7 days. This approach shows promise for post-MI treatment and potentially functional cardiac tissue regeneration and warrants large-scale animal testing prior to clinical translation.
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Affiliation(s)
- Abhishek Roy
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Lei Hao
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Jamie Francisco
- Department of Cell Biology and Molecular Medicine, New Jersey Medical School, Newark, New Jersey 07103, United States
| | - Jin Guan
- Department of Cell Biology and Molecular Medicine, New Jersey Medical School, Newark, New Jersey 07103, United States
| | - Satvik Mareedu
- Department of Cell Biology and Molecular Medicine, New Jersey Medical School, Newark, New Jersey 07103, United States
| | - Peiyong Zhai
- Department of Cell Biology and Molecular Medicine, New Jersey Medical School, Newark, New Jersey 07103, United States
| | - Joseph Dodd-O
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Corey Heffernan
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Dominic Del Re
- Department of Cell Biology and Molecular Medicine, New Jersey Medical School, Newark, New Jersey 07103, United States
| | - Eun Jung A Lee
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Vivek A Kumar
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
- Department of Biological Sciences, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
- Department of Endodontics, Rutgers School of Dental Medicine, Newark, New Jersey 07103, United States
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8
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Smith CS, Álvarez Z, Qiu R, Sasselli IR, Clemons T, Ortega JA, Vilela-Picos M, Wellman H, Kiskinis E, Stupp SI. Enhanced Neuron Growth and Electrical Activity by a Supramolecular Netrin-1 Mimetic Nanofiber. ACS NANO 2023; 17:19887-19902. [PMID: 37793046 DOI: 10.1021/acsnano.3c04572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
Neurotrophic factors are essential not only for guiding the organization of the developing nervous system but also for supporting the survival and growth of neurons after traumatic injury. In the central nervous system (CNS), inhibitory factors and the formation of a glial scar after injury hinder the functional recovery of neurons, requiring exogenous therapies to promote regeneration. Netrin-1, a neurotrophic factor, can initiate axon guidance, outgrowth, and branching, as well as synaptogenesis, through activation of deleted in colorectal cancer (DCC) receptors. We report here the development of a nanofiber-shaped supramolecular mimetic of netrin-1 with monomers that incorporate a cyclic peptide sequence as the bioactive component. The mimetic structure was found to activate the DCC receptor in primary cortical neurons using low molar ratios of the bioactive comonomer. The supramolecular nanofibers enhanced neurite outgrowth and upregulated maturation as well as pre- and postsynaptic markers over time, resulting in differences in electrical activity similar to neurons treated with the recombinant netrin-1 protein. The results suggest the possibility of using the supramolecular structure as a therapeutic to promote regenerative bioactivity in CNS injuries.
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Affiliation(s)
- Cara S Smith
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Zaida Álvarez
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Biomaterials for Neural Regeneration, Institute for Bioengineering of Catalonia (IBEC), Barcelona 08028, Spain
| | - Ruomeng Qiu
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Ivan R Sasselli
- Centro de Fisica de Materiales (CFM), CSIC-UPV/EHU, San Sebastián 20018, Spain
| | - Tristan Clemons
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - J Alberto Ortega
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- The Ken & Ruth Davee Department of Neurology, Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Department of Pathology and Experimental Therapeutics, Institute of Neurosciences, University of Barcelona, L'Hospitalet de Llobregat, Barcelona 08907, Spain
| | - Marcos Vilela-Picos
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Haley Wellman
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Evangelos Kiskinis
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- The Ken & Ruth Davee Department of Neurology, Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Department of Neuroscience, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States
| | - Samuel I Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
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9
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Duan L, Wang Z, Fan S, Wang C, Zhang Y. Research progress of biomaterials and innovative technologies in urinary tissue engineering. Front Bioeng Biotechnol 2023; 11:1258666. [PMID: 37645598 PMCID: PMC10461011 DOI: 10.3389/fbioe.2023.1258666] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 08/02/2023] [Indexed: 08/31/2023] Open
Abstract
Substantial interests have been attracted to multiple bioactive and biomimetic biomaterials in recent decades because of their ability in presenting a structural and functional reconstruction of urinary tissues. Some innovative technologies have also been surging in urinary tissue engineering and urological regeneration by providing insights into the physiological behavior of the urinary system. As such, the hierarchical structure and tissue function of the bladder, urethra, and ureter can be reproduced similarly to the native urinary tissues. This review aims to summarize recent advances in functional biomaterials and biomimetic technologies toward urological reconstruction. Various nanofirous biomaterials derived from decellularized natural tissues, synthetic biopolymers, and hybrid scaffolds were developed with desired microstructure, surface chemistry, and mechanical properties. Some growth factors, drugs, as well as inorganic nanomaterials were also utilized to enhance the biological activity and functionality of scaffolds. Notably, it is emphasized that advanced approaches, such as 3D (bio) printing and organoids, have also been developed to facilitate structural and functional regeneration of the urological system. So in this review, we discussed the fabrication strategies, physiochemical properties, and biofunctional modification of regenerative biomaterials and their potential clinical application of fast-evolving technologies. In addition, future prospective and commercial products are further proposed and discussed.
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Affiliation(s)
- Liwei Duan
- The Second Hospital, Jilin University, Changchun, China
| | - Zongliang Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Shuang Fan
- The Second Hospital, Jilin University, Changchun, China
| | - Chen Wang
- The Second Hospital, Jilin University, Changchun, China
| | - Yi Zhang
- The Second Hospital, Jilin University, Changchun, China
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10
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Qiu R, Chen F, Álvarez Z, Clemons TD, Biswas S, Karver MR, Takata N, Sai H, Peng H, Weigand S, Palmer LC, Stupp SI. Supramolecular Nanofibers Block SARS-CoV-2 Entry into Human Host Cells. ACS APPLIED MATERIALS & INTERFACES 2023; 15:26340-26348. [PMID: 37235485 DOI: 10.1021/acsami.3c02447] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection relies on its spike protein binding to angiotensin-converting enzyme 2 (ACE2) on host cells to initiate cellular entry. Blocking the interactions between the spike protein and ACE2 offers promising therapeutic opportunities to prevent infection. We report here on peptide amphiphile supramolecular nanofibers that display a sequence from ACE2 in order to promote interactions with the SARS-CoV-2 spike receptor binding domain. We demonstrate that displaying this sequence on the surface of supramolecular assemblies preserves its α-helical conformation and blocks the entry of a pseudovirus and its two variants into human host cells. We also found that the chemical stability of the bioactive structures was enhanced in the supramolecular environment relative to the unassembled peptide molecules. These findings reveal unique advantages of supramolecular peptide therapies to prevent viral infections and more broadly for other targets as well.
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Affiliation(s)
- Ruomeng Qiu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Feng Chen
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Zaida Álvarez
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Medicine, Northwestern University, 676 N. St. Clair Street, Chicago, Illinois 60611, United States
| | - Tristan D Clemons
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Suvendu Biswas
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Mark R Karver
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Nozomu Takata
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Hiroaki Sai
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Han Peng
- Department of Dermatology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States
| | - Steven Weigand
- DuPont-Northwestern-Dow Collaborative Access Team (DND-CAT) Synchrotron Research Center, Advanced Photon Source (APS)/Argonne National Laboratory 432-A004, Northwestern University, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Liam C Palmer
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, 676 N. St. Clair Street, Chicago, Illinois 60611, United States
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11
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Binaymotlagh R, Chronopoulou L, Palocci C. Peptide-Based Hydrogels: Template Materials for Tissue Engineering. J Funct Biomater 2023; 14:jfb14040233. [PMID: 37103323 PMCID: PMC10145623 DOI: 10.3390/jfb14040233] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/12/2023] [Accepted: 04/17/2023] [Indexed: 04/28/2023] Open
Abstract
Tissue and organ regeneration are challenging issues, yet they represent the frontier of current research in the biomedical field. Currently, a major problem is the lack of ideal scaffold materials' definition. As well known, peptide hydrogels have attracted increasing attention in recent years thanks to significant properties such as biocompatibility, biodegradability, good mechanical stability, and tissue-like elasticity. Such properties make them excellent candidates for 3D scaffold materials. In this review, the first aim is to describe the main features of a peptide hydrogel in order to be considered as a 3D scaffold, focusing in particular on mechanical properties, as well as on biodegradability and bioactivity. Then, some recent applications of peptide hydrogels in tissue engineering, including soft and hard tissues, will be discussed to analyze the most relevant research trends in this field.
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Affiliation(s)
- Roya Binaymotlagh
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Laura Chronopoulou
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
- Research Center for Applied Sciences to the Safeguard of Environment and Cultural Heritage (CIABC), Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Cleofe Palocci
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
- Research Center for Applied Sciences to the Safeguard of Environment and Cultural Heritage (CIABC), Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
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12
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Mitrakas AG, Tsolou A, Didaskalou S, Karkaletsou L, Efstathiou C, Eftalitsidis E, Marmanis K, Koffa M. Applications and Advances of Multicellular Tumor Spheroids: Challenges in Their Development and Analysis. Int J Mol Sci 2023; 24:ijms24086949. [PMID: 37108113 PMCID: PMC10138394 DOI: 10.3390/ijms24086949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/31/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Biomedical research requires both in vitro and in vivo studies in order to explore disease processes or drug interactions. Foundational investigations have been performed at the cellular level using two-dimensional cultures as the gold-standard method since the early 20th century. However, three-dimensional (3D) cultures have emerged as a new tool for tissue modeling over the last few years, bridging the gap between in vitro and animal model studies. Cancer has been a worldwide challenge for the biomedical community due to its high morbidity and mortality rates. Various methods have been developed to produce multicellular tumor spheroids (MCTSs), including scaffold-free and scaffold-based structures, which usually depend on the demands of the cells used and the related biological question. MCTSs are increasingly utilized in studies involving cancer cell metabolism and cell cycle defects. These studies produce massive amounts of data, which demand elaborate and complex tools for thorough analysis. In this review, we discuss the advantages and disadvantages of several up-to-date methods used to construct MCTSs. In addition, we also present advanced methods for analyzing MCTS features. As MCTSs more closely mimic the in vivo tumor environment, compared to 2D monolayers, they can evolve to be an appealing model for in vitro tumor biology studies.
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Affiliation(s)
- Achilleas G Mitrakas
- Cell Biology Lab, Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Avgi Tsolou
- Cell Biology Lab, Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Stylianos Didaskalou
- Cell Biology Lab, Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Lito Karkaletsou
- Cell Biology Lab, Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Christos Efstathiou
- Cell Biology Lab, Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Evgenios Eftalitsidis
- Cell Biology Lab, Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Konstantinos Marmanis
- Cell Biology Lab, Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Maria Koffa
- Cell Biology Lab, Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
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13
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Bai T, Li M, Liu Y, Qiao Z, Zhang X, Wang Y, Wang Z. The promotion action of AURKA on post-ischemic angiogenesis in diabetes-related limb ischemia. Mol Med 2023; 29:39. [PMID: 36977984 PMCID: PMC10053687 DOI: 10.1186/s10020-023-00635-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 03/13/2023] [Indexed: 03/30/2023] Open
Abstract
Abstract
Background
Diabetes-related limb ischemia is a challenge for lower extremity amputation. Aurora Kinase A (AURKA) is an essential serine/threonine kinase for mitosis, while its role in limb ischemia remains unclear.
Method
Human microvascular endothelial cells (HMEC-1) were cultured in high glucose (HG, 25 mmol/L d-glucose) and no additional growth factors (ND) medium to mimic diabetes and low growth factors deprivation as in vitro model. Diabetic C57BL/6 mice were induced by streptozotocin (STZ) administration. After seven days, ischemia was surgically performed by left unilateral femoral artery ligation on diabetic mice. The vector of adenovirus was utilized to overexpress AURKA in vitro and in vivo.
Results
In our study, HG and ND-mediated downregulation of AURKA impaired the cell cycle progression, proliferation, migration, and tube formation ability of HMEC-1, which were rescued by overexpressed AURKA. Increased expression of vascular endothelial growth factor A (VEGFA) induced by overexpressed AURKA were likely regulatory molecules that coordinate these events. Mice with AURKA overexpression exhibited improved angiogenesis in response to VEGF in Matrigel plug assay, with increased capillary density and hemoglobin content. In diabetic limb ischemia mice, AURKA overexpression rescued blood perfusion and motor deficits, accompanied by the recovery of gastrocnemius muscles observed by H&E staining and positive Desmin staining. Moreover, AURKA overexpression rescued diabetes-related impairment of angiogenesis, arteriogenesis, and functional recovery in the ischemic limb. Signal pathway results revealed that VEGFR2/PI3K/AKT pathway might be involved in AURKA triggered angiogenesis procedure. In addition, AURKA overexpression impeded oxidative stress and subsequent following lipid peroxidation both in vitro and in vivo, indicating another protective mechanism of AURKA function in diabetic limb ischemia. The changes in lipid peroxidation biomarkers (lipid ROS, GPX4, SLC7A11, ALOX5, and ASLC4) in in vitro and in vivo were suggestive of the possible involvement of ferroptosis and interaction between AUKRA and ferroptosis in diabetic limb ischemia, which need further investigation.
Conclusions
These results implicated a potent role of AURKA in diabetes-related impairment of ischemia-mediated angiogenesis and implied a potential therapeutic target for ischemic diseases of diabetes.
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Hu Y, Shi H, Ma X, Xia T, Wu Y, Chen L, Ren Z, Lei L, Jiang J, Wang J, Li X. Highly stable fibronectin-mimetic-peptide-based supramolecular hydrogel to accelerate corneal wound healing. Acta Biomater 2023; 159:128-139. [PMID: 36708851 DOI: 10.1016/j.actbio.2023.01.047] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 12/30/2022] [Accepted: 01/19/2023] [Indexed: 01/27/2023]
Abstract
Without timely treatment, poor wound healing in corneal injuries can seriously impair vision and lead to blindness. Thus, it is vital to develop a therapeutic strategy to accelerate corneal re-epithelialization. The conjugation of self-assembled motifs with a fibronectin-mimetic peptide sequence (PHSRN) drastically improves the chemical stability of PHSRN against protease hydrolysis and minimally affects its biological activity to promote the migration of corneal epithelial cells. The optimized Nap-FFPHSRN self-assembled into bioactive supramolecular hydrogels increases cell motility by remolding F-actin and boosts the tight junction of the corneal epithelium by increasing the expression of zonula occludens-1 (ZO-1). An in vivo experiment showed that a Nap-FFPHSRN hydrogel provided extended precorneal retention with good ocular tolerance after topical instillation. An animal model of corneal scrape showed that a single daily dose of Nap-FFPHSRN hydrogel had a superior therapeutic effect in facilitating corneal re-epithelialization with complete morphological and architectural recovery. With a rational approach to mimic bioactive proteins, this study presents a new strategy to demonstrate the potential of peptide-based supramolecular hydrogels for use in clinical treatment of corneal injury. STATEMENT OF SIGNIFICANCE: Here we systematically investigate the self-assembly behavior and chemical stability of designed peptide amphiphiles (Nap-FPHRSN, Nap-FFPHSRN and Nap-FFFPHSRN). The introduction of self-assembled motifs (Nap-F, Nap-FF and Nap-FFF) drastically enhances the chemical stability of fibronectin-mimetic peptide (PHSRN). Moreover, topical instillation of Nap-FFPHSRN hydrogel once daily, exhibits a better in vivo effect than PHSRN and the same in vivo effect as fibronectin, both of which are instilled three times daily, for promoting full morphological and architectural recovery after corneal re-epithelialization. As a rational design of conjugating bioactive peptides with self-assembled motifs to mimic bioactive proteins, this work may lead to a new approach that improves the in vivo therapeutic effect for treating corneal injury in clinic settings.
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Affiliation(s)
- Yuhan Hu
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, China
| | - Hui Shi
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, China
| | - Xiaohui Ma
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, China
| | - Tian Xia
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, China
| | - Yiping Wu
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, China
| | - Lei Chen
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, China
| | - Zhibin Ren
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, China
| | - Lei Lei
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, China
| | - Jun Jiang
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, China
| | - Jiaqing Wang
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, China.
| | - Xingyi Li
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, China.
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15
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Sun W, Gregory DA, Zhao X. Designed peptide amphiphiles as scaffolds for tissue engineering. Adv Colloid Interface Sci 2023; 314:102866. [PMID: 36898186 DOI: 10.1016/j.cis.2023.102866] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 02/22/2023] [Accepted: 02/24/2023] [Indexed: 03/03/2023]
Abstract
Peptide amphiphiles (PAs) are peptide-based molecules that contain a peptide sequence as a head group covalently conjugated to a hydrophobic segment, such as lipid tails. They can self-assemble into well-ordered supramolecular nanostructures such as micelles, vesicles, twisted ribbons and nanofibers. In addition, the diversity of natural amino acids gives the possibility to produce PAs with different sequences. These properties along with their biocompatibility, biodegradability and a high resemblance to native extracellular matrix (ECM) have resulted in PAs being considered as ideal scaffold materials for tissue engineering (TE) applications. This review introduces the 20 natural canonical amino acids as building blocks followed by highlighting the three categories of PAs: amphiphilic peptides, lipidated peptide amphiphiles and supramolecular peptide amphiphile conjugates, as well as their design rules that dictate the peptide self-assembly process. Furthermore, 3D bio-fabrication strategies of PAs hydrogels are discussed and the recent advances of PA-based scaffolds in TE with the emphasis on bone, cartilage and neural tissue regeneration both in vitro and in vivo are considered. Finally, future prospects and challenges are discussed.
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Affiliation(s)
- Weizhen Sun
- School of Pharmacy, Changzhou University, Changzhou 213164, China; Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, UK
| | - David Alexander Gregory
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, UK; Department of Material Science and Engineering, University of Sheffield, Sheffield S3 7HQ, UK
| | - Xiubo Zhao
- School of Pharmacy, Changzhou University, Changzhou 213164, China; Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, UK.
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16
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Yamaura K, Sather NA, Metlushko A, Nishimura H, Pavlović RZ, Hambright S, Ravuri SK, Philippon MJ, Stupp SI, Bahney CS, Huard J. Sustained-release losartan from peptide nanofibers promotes chondrogenesis. Front Bioeng Biotechnol 2023; 11:1122456. [PMID: 36814717 PMCID: PMC9939695 DOI: 10.3389/fbioe.2023.1122456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 01/20/2023] [Indexed: 02/09/2023] Open
Abstract
Introduction: The central pathologic feature of osteoarthritis (OA) is the progressive loss of articular cartilage, which has a limited regenerative capacity. The TGF-β1 inhibitor, losartan, can improve cartilage repair by promoting hyaline rather that fibrous cartilage tissue regeneration. However, there are concerns about side effects associated with oral administration and short retention within the joint following intra-articular injections. To facilitate local and sustained intra-articular losartan delivery we have designed an injectable peptide amphiphile (PA) nanofiber that binds losartan. The aims of this study are to characterize the release kinetics of losartan from two different PA nanofiber compositions followed by testing pro-regenerative bioactivity on chondrocytes. Methods: We tested the impact of electrostatic interactions on nanostructure morphology and release kinetics of the negatively charged losartan molecule from either a positively or negatively charged PA nanofiber. Subsequently, cytotoxicity and bioactivity were evaluated in vitro in both normal and an IL-1β-induced OA chondrocyte model using ATDC5. Results: Both nanofiber systems promoted cell proliferation but that the positively-charged nanofibers also significantly increased glycosaminoglycans production. Furthermore, gene expression analysis suggested that losartan-encapsulated nanofibers had significant anti-inflammatory, anti-degenerative, and cartilage regenerative effects by significantly blocking TGF-β1 in this in vitro system. Discussion: The results of this study demonstrated that positively charged losartan sustained-release nanofibers may be a novel and useful treatment for cartilage regeneration and OA by blocking TGF-β1.
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Affiliation(s)
- Kohei Yamaura
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States
| | - Nicholas A. Sather
- Simpson Querrey Institute for Bionanotechnology, Northwestern University, Chicago, IL, United States
| | - Anna Metlushko
- Simpson Querrey Institute for Bionanotechnology, Northwestern University, Chicago, IL, United States
| | - Haruki Nishimura
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States
| | - Radoslav Z. Pavlović
- Simpson Querrey Institute for Bionanotechnology, Northwestern University, Chicago, IL, United States
| | - Sealy Hambright
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States
| | - Sudheer K. Ravuri
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States
| | - Marc J. Philippon
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States,The Steadman Clinic, Vail, CO, United States
| | - Samuel I. Stupp
- Simpson Querrey Institute for Bionanotechnology, Northwestern University, Chicago, IL, United States
| | - Chelsea S. Bahney
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States,The Orthopaedic Trauma Institute, University of California, San Francisco (UCSF), San Francisco, CA, United States,*Correspondence: Chelsea S. Bahney, ; Johnny Huard,
| | - Johnny Huard
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States,*Correspondence: Chelsea S. Bahney, ; Johnny Huard,
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17
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Álvarez Z, Ortega JA, Sato K, Sasselli IR, Kolberg-Edelbrock AN, Qiu R, Marshall KA, Nguyen TP, Smith CS, Quinlan KA, Papakis V, Syrgiannis Z, Sather NA, Musumeci C, Engel E, Stupp SI, Kiskinis E. Artificial extracellular matrix scaffolds of mobile molecules enhance maturation of human stem cell-derived neurons. Cell Stem Cell 2023; 30:219-238.e14. [PMID: 36638801 PMCID: PMC9898161 DOI: 10.1016/j.stem.2022.12.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 11/04/2022] [Accepted: 12/13/2022] [Indexed: 01/13/2023]
Abstract
Human induced pluripotent stem cell (hiPSC) technologies offer a unique resource for modeling neurological diseases. However, iPSC models are fraught with technical limitations including abnormal aggregation and inefficient maturation of differentiated neurons. These problems are in part due to the absence of synergistic cues of the native extracellular matrix (ECM). We report on the use of three artificial ECMs based on peptide amphiphile (PA) supramolecular nanofibers. All nanofibers display the laminin-derived IKVAV signal on their surface but differ in the nature of their non-bioactive domains. We find that nanofibers with greater intensity of internal supramolecular motion have enhanced bioactivity toward hiPSC-derived motor and cortical neurons. Proteomic, biochemical, and functional assays reveal that highly mobile PA scaffolds caused enhanced β1-integrin pathway activation, reduced aggregation, increased arborization, and matured electrophysiological activity of neurons. Our work highlights the importance of designing biomimetic ECMs to study the development, function, and dysfunction of human neurons.
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Affiliation(s)
- Zaida Álvarez
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Medicine, Northwestern University, Chicago, IL 60611, USA; Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC), Barcelona 08028, Spain
| | - J Alberto Ortega
- The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences, University of Barcelona, L'Hospitalet de Llobregat, Barcelona 08907, Spain
| | - Kohei Sato
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Ivan R Sasselli
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA; Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián 20014, Spain
| | - Alexandra N Kolberg-Edelbrock
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Ruomeng Qiu
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Kelly A Marshall
- The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Thao Phuong Nguyen
- The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Cara S Smith
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Katharina A Quinlan
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Vasileios Papakis
- The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Zois Syrgiannis
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Nicholas A Sather
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - Chiara Musumeci
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Elisabeth Engel
- Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC), Barcelona 08028, Spain
| | - Samuel I Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA; Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA; Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA; Department of Medicine, Northwestern University, Chicago, IL 60611, USA.
| | - Evangelos Kiskinis
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Department of Neuroscience, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
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18
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Yao T, Chen H, Wang R, Rivero R, Wang F, Kessels L, Agten SM, Hackeng TM, Wolfs TG, Fan D, Baker MB, Moroni L. Thiol-ene conjugation of a VEGF peptide to electrospun scaffolds for potential applications in angiogenesis. Bioact Mater 2023; 20:306-317. [PMID: 35755423 PMCID: PMC9192696 DOI: 10.1016/j.bioactmat.2022.05.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 05/07/2022] [Accepted: 05/23/2022] [Indexed: 01/17/2023] Open
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19
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Wu H, Shang Y, Sun W, Ouyang X, Zhou W, Lu J, Yang S, Wei W, Yao X, Wang X, Zhang X, Chen Y, He Q, Yang Z, Ouyang H. Seamless and early gap healing of osteochondral defects by autologous mosaicplasty combined with bioactive supramolecular nanofiber-enabled gelatin methacryloyl (BSN-GelMA) hydrogel. Bioact Mater 2023; 19:88-102. [PMID: 35441114 PMCID: PMC9005961 DOI: 10.1016/j.bioactmat.2022.03.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/04/2022] [Accepted: 03/25/2022] [Indexed: 12/02/2022] Open
Abstract
Autologous mosaicplasty is a common approach used to treat osteochondral defects in clinical practice. Gap integration between host and transplanted plugs requires bone tissue reservation and hyaline cartilage regeneration without uneven surface, graft necrosis and sclerosis. However, poor gap integration is a serious concern, which eventually leads to deterioration of joint function. To deal with such complications, this study has developed a strategy to effectively enhance integration of the gap region following mosaicplasty by applying injectable bioactive supramolecular nanofiber-enabled gelatin methacryloyl (GelMA) hydrogel (BSN-GelMA). A rabbit osteochondral defect model demonstrated that BSN-GelMA achieved seamless osteochondral healing in the gap region between plugs of osteochondral defects following mosaicplasty, as early as six weeks. Moreover, the International Cartilage Repair Society score, histology score, glycosaminoglycan content, subchondral bone volume, and collagen II expression were observed to be the highest in the gap region of BSN-GelMA treated group. This improved outcome was due to bio-interactive materials, which acted as tissue fillers to bridge the gap, prevent cartilage degeneration, and promote graft survival and migration of bone marrow mesenchymal stem cells by releasing bioactive supramolecular nanofibers from the GelMA hydrogel. This study provides a powerful and applicable approach to improve gap integration after autologous mosaicplasty. It is also a promising off-the-shelf bioactive material for cell-free in situ tissue regeneration. A novel strategy that can effectively enhance post-mosaicplasty interstitial integration was developed. The bioactive supramolecular nanofibers (BSN) exhibited comparable bioactivity to insulin-like growth factor-1 (IGF-1). The BSN-GelMA hydrogel is a promising off-the-shelf bioactive material for cell-free in situ tissue regeneration.
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20
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Hoseinzadeh A, Ghoddusi Johari H, Anbardar MH, Tayebi L, Vafa E, Abbasi M, Vaez A, Golchin A, Amani AM, Jangjou A. Effective treatment of intractable diseases using nanoparticles to interfere with vascular supply and angiogenic process. Eur J Med Res 2022; 27:232. [PMID: 36333816 PMCID: PMC9636835 DOI: 10.1186/s40001-022-00833-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 09/30/2022] [Indexed: 11/06/2022] Open
Abstract
Angiogenesis is a vital biological process involving blood vessels forming from pre-existing vascular systems. This process contributes to various physiological activities, including embryonic development, hair growth, ovulation, menstruation, and the repair and regeneration of damaged tissue. On the other hand, it is essential in treating a wide range of pathological diseases, such as cardiovascular and ischemic diseases, rheumatoid arthritis, malignancies, ophthalmic and retinal diseases, and other chronic conditions. These diseases and disorders are frequently treated by regulating angiogenesis by utilizing a variety of pro-angiogenic or anti-angiogenic agents or molecules by stimulating or suppressing this complicated process, respectively. Nevertheless, many traditional angiogenic therapy techniques suffer from a lack of ability to achieve the intended therapeutic impact because of various constraints. These disadvantages include limited bioavailability, drug resistance, fast elimination, increased price, nonspecificity, and adverse effects. As a result, it is an excellent time for developing various pro- and anti-angiogenic substances that might circumvent the abovementioned restrictions, followed by their efficient use in treating disorders associated with angiogenesis. In recent years, significant progress has been made in different fields of medicine and biology, including therapeutic angiogenesis. Around the world, a multitude of research groups investigated several inorganic or organic nanoparticles (NPs) that had the potential to effectively modify the angiogenesis processes by either enhancing or suppressing the process. Many studies into the processes behind NP-mediated angiogenesis are well described. In this article, we also cover the application of NPs to encourage tissue vascularization as well as their angiogenic and anti-angiogenic effects in the treatment of several disorders, including bone regeneration, peripheral vascular disease, diabetic retinopathy, ischemic stroke, rheumatoid arthritis, post-ischemic cardiovascular injury, age-related macular degeneration, diabetic retinopathy, gene delivery-based angiogenic therapy, protein delivery-based angiogenic therapy, stem cell angiogenic therapy, and diabetic retinopathy, cancer that may benefit from the behavior of the nanostructures in the vascular system throughout the body. In addition, the accompanying difficulties and potential future applications of NPs in treating angiogenesis-related diseases and antiangiogenic therapies are discussed.
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Affiliation(s)
- Ahmad Hoseinzadeh
- Thoracic and Vascular Surgery Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Surgery, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamed Ghoddusi Johari
- Thoracic and Vascular Surgery Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Surgery, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Lobat Tayebi
- Marquette University School of Dentistry, Milwaukee, WI, 53233, USA
| | - Ehsan Vafa
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Milad Abbasi
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmad Vaez
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Golchin
- Solid Tumor Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran
- Department of Clinical Biochemistry and Applied Cell Sciences, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Ali Mohammad Amani
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Jangjou
- Department of Emergency Medicine, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran.
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21
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Sharma TT, Rabizadeh RR, Prabhakar VS, Bury MI, Sharma AK. Evolving Experimental Platforms to Evaluate Ulcerative Colitis. Adv Biol (Weinh) 2022; 6:e2200018. [PMID: 35866469 DOI: 10.1002/adbi.202200018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 05/06/2022] [Indexed: 01/28/2023]
Abstract
Ulcerative colitis (UC) is a multifactorial disease defined by chronic intestinal inflammation with idiopathic origins. It has a predilection to affect the mucosal lining of the large intestines and rectum. Management of UC depends upon numerous factors that include disease pathogenesis and severity that are maintained via medical or surgical means. Chronic inflammation that is left untreated or managed poorly from a clinical stance can result in intestinal ulceration accompanied by resulting physiological dysfunction. End-stage UC is mediated by surgical intervention with the resection of diseased tissue. This can lead to numerous health-related quality of life issues but is considered a curative approach. Regimens to treat UC are ever evolving and find their basis within various platforms to evaluate and treat UC. Numerous modeling systems have been examined to delineate potential mechanisms of action. However, UC is a heterogenous disease spanning unknown genetic origins coupled with environmental factors that can influence disease outcomes and related treatment procedures. Unfortunately, there is no one-size-fits-all model to fully assess all facets of UC. Within the context of this review article, the utility of various approaches that have been employed to gain insight into different aspects of UC will be investigated.
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Affiliation(s)
- Tiffany T Sharma
- Lurie Children's Hospital, Division of Pediatric Urology, Chicago, IL, 60611, USA.,Stanley Manne Children's Research Institute, Chicago, IL, 60611, USA
| | - Rebecca R Rabizadeh
- Lurie Children's Hospital, Division of Pediatric Urology, Chicago, IL, 60611, USA
| | - Vibhav S Prabhakar
- Lurie Children's Hospital, Division of Pediatric Urology, Chicago, IL, 60611, USA
| | - Matthew I Bury
- Lurie Children's Hospital, Division of Pediatric Urology, Chicago, IL, 60611, USA
| | - Arun K Sharma
- Lurie Children's Hospital, Division of Pediatric Urology, Chicago, IL, 60611, USA.,Stanley Manne Children's Research Institute, Chicago, IL, 60611, USA.,Feinberg School of Medicine, Department of Urology, Northwestern University, Chicago, IL, 60611, USA.,McCormick School of Engineering, Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA.,Center for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, IL, 60208, USA.,Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL, 60611, USA
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22
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Small extracellular vesicles of hypoxic endothelial cells regulate the therapeutic potential of adipose-derived mesenchymal stem cells via miR-486-5p/PTEN in a limb ischemia model. J Nanobiotechnology 2022; 20:422. [PMID: 36153544 PMCID: PMC9509557 DOI: 10.1186/s12951-022-01632-1] [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: 06/23/2022] [Accepted: 09/12/2022] [Indexed: 11/29/2022] Open
Abstract
Background Patients with critical limb ischemia (CLI) are at great risk of major amputation and cardiovascular events. Adipose-derived mesenchymal stem cell (ADSC) therapy is a promising therapeutic strategy for CLI, but the poor engraftment and insufficient angiogenic ability of ADSCs limit their regenerative potential. Herein, we explored the potential of human umbilical vein endothelial cells (HUVECs)-derived small extracellular vesicles (sEVs) for enhancing the therapeutic efficacy of ADSCs in CLI. Results sEVs derived from hypoxic HUVECs enhanced the resistance of ADSCs to reactive oxygen species (ROS) and further improved the proangiogenic ability of ADSCs in vitro. We found that the hypoxic environment altered the composition of sEVs from HUVECs and that hypoxia increased the level of miR-486-5p in sEVs. Compared to normoxic sEVs (nsEVs), hypoxic sEVs (hsEVs) of HUVECs significantly downregulated the phosphatase and tensin homolog (PTEN) via direct targeting of miR-486-5p, therefore activating the AKT/MTOR/HIF-1α pathway and influencing the survival and pro-angiogenesis ability of ADSCs. In a hindlimb ischemia model, we discovered that hsEVs-primed ADSCs exhibited superior cell engraftment, and resulted in better angiogenesis and tissue repair. Conclusion hsEVs could be used as a therapeutic booster to improve the curative potential of ADSCs in a limb ischemia model. This finding offers new insight for CLI treatment. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-022-01632-1.
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Kobayashi Y, Nouet J, Baljinnyam E, Siddiqui Z, Fine DH, Fraidenraich D, Kumar VA, Shimizu E. iPSC-derived cranial neural crest-like cells can replicate dental pulp tissue with the aid of angiogenic hydrogel. Bioact Mater 2022; 14:290-301. [PMID: 35310357 PMCID: PMC8897656 DOI: 10.1016/j.bioactmat.2021.11.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 11/07/2021] [Accepted: 11/09/2021] [Indexed: 12/18/2022] Open
Abstract
The dental pulp has irreplaceable roles in maintaining healthy teeth and its regeneration is a primary aim of regenerative endodontics. This study aimed to replicate the characteristics of dental pulp tissue by using cranial neural crest (CNC)-like cells (CNCLCs); these cells were generated by modifying several steps of a previously established method for deriving NC-like cells from induced pluripotent stem cells (iPSCs). CNC is the anterior region of the neural crest in vertebrate embryos, which contains the primordium of dental pulp cells or odontoblasts. The produced CNCLCs showed approximately 2.5–12,000-fold upregulations of major CNC marker genes. Furthermore, the CNCLCs exhibited remarkable odontoblastic differentiation ability, especially when treated with a combination of the fibroblast growth factors (FGFs) FGF4 and FGF9. The FGFs induced odontoblast marker genes by 1.7–5.0-fold, as compared to bone morphogenetic protein 4 (BMP4) treatment. In a mouse subcutaneous implant model, the CNCLCs briefly fated with FGF4 + FGF9 replicated dental pulp tissue characteristics, such as harboring odontoblast-like cells, a dentin-like layer, and vast neovascularization, induced by the angiogenic self-assembling peptide hydrogel (SAPH), SLan. SLan acts as a versatile biocompatible scaffold in the canal space. This study demonstrated a successful collaboration between regenerative medicine and SAPH technology. Cranial neural crest like cells (CNCLCs) were generated by simplifying a previously established method for deriving neural crest-like cells from iPSCs. The produced CNCLCs showed approximately ∼12,000-fold upregulations of major CNC marker genes. The combination of fibroblast growth factors, FGF4 and FGF9, induced the CNCLCs toward odontoblastic differentiation more effectively than BMP4. In a mice subcutaneous implant model, the CNCLCs replicated the characteristics of dental pulp harboring vast neovascularization with the aid of the angiogenic hydrogel, SLan.
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24
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Research Advances of Injectable Functional Hydrogel Materials in the Treatment of Myocardial Infarction. Gels 2022; 8:gels8070423. [PMID: 35877508 PMCID: PMC9316750 DOI: 10.3390/gels8070423] [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: 05/31/2022] [Revised: 06/30/2022] [Accepted: 07/03/2022] [Indexed: 12/10/2022] Open
Abstract
Myocardial infarction (MI) has become one of the serious diseases threatening human life and health. However, traditional treatment methods for MI have some limitations, such as irreversible myocardial necrosis and cardiac dysfunction. Fortunately, recent endeavors have shown that hydrogel materials can effectively prevent negative remodeling of the heart and improve the heart function and long-term prognosis of patients with MI due to their good biocompatibility, mechanical properties, and electrical conductivity. Therefore, this review aims to summarize the research progress of injectable hydrogel in the treatment of MI in recent years and to introduce the rational design of injectable hydrogels in myocardial repair. Finally, the potential challenges and perspectives of injectable hydrogel in this field will be discussed, in order to provide theoretical guidance for the development of new and effective treatment strategies for MI.
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25
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Guo T, He C, Venado A, Zhou Y. Extracellular Matrix Stiffness in Lung Health and Disease. Compr Physiol 2022; 12:3523-3558. [PMID: 35766837 PMCID: PMC10088466 DOI: 10.1002/cphy.c210032] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The extracellular matrix (ECM) provides structural support and imparts a wide variety of environmental cues to cells. In the past decade, a growing body of work revealed that the mechanical properties of the ECM, commonly known as matrix stiffness, regulate the fundamental cellular processes of the lung. There is growing appreciation that mechanical interplays between cells and associated ECM are essential to maintain lung homeostasis. Dysregulation of ECM-derived mechanical signaling via altered mechanosensing and mechanotransduction pathways is associated with many common lung diseases. Matrix stiffening is a hallmark of lung fibrosis. The stiffened ECM is not merely a sequelae of lung fibrosis but can actively drive the progression of fibrotic lung disease. In this article, we provide a comprehensive view on the role of matrix stiffness in lung health and disease. We begin by summarizing the effects of matrix stiffness on the function and behavior of various lung cell types and on regulation of biomolecule activity and key physiological processes, including host immune response and cellular metabolism. We discuss the potential mechanisms by which cells probe matrix stiffness and convert mechanical signals to regulate gene expression. We highlight the factors that govern matrix stiffness and outline the role of matrix stiffness in lung development and the pathogenesis of pulmonary fibrosis, pulmonary hypertension, asthma, chronic obstructive pulmonary disease (COPD), and lung cancer. We envision targeting of deleterious matrix mechanical cues for treatment of fibrotic lung disease. Advances in technologies for matrix stiffness measurements and design of stiffness-tunable matrix substrates are also explored. © 2022 American Physiological Society. Compr Physiol 12:3523-3558, 2022.
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Affiliation(s)
- Ting Guo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Alabama, USA.,Department of Respiratory Medicine, the Second Xiangya Hospital, Central-South University, Changsha, Hunan, China
| | - Chao He
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Alabama, USA
| | - Aida Venado
- Pulmonary, Critical Care, Allergy and Sleep Medicine, Department of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Yong Zhou
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Alabama, USA
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26
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Anderson CF, Chakroun RW, Grimmett ME, Domalewski CJ, Wang F, Cui H. Collagen-Binding Peptide-Enabled Supramolecular Hydrogel Design for Improved Organ Adhesion and Sprayable Therapeutic Delivery. NANO LETTERS 2022; 22:4182-4191. [PMID: 35522052 PMCID: PMC9844543 DOI: 10.1021/acs.nanolett.2c00967] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Spraying serves as an attractive, minimally invasive means of administering hydrogels for localized delivery, particularly due to high-throughput deposition of therapeutic depots over an entire target site of uneven surfaces. However, it remains a great challenge to design systems capable of rapid gelation after shear-thinning during spraying and adhering to coated tissues in wet, physiological environments. We report here on the use of a collagen-binding peptide to enable a supramolecular design of a biocompatible, bioadhesive, and sprayable hydrogel for sustained release of therapeutics. After spraying, the designed peptide amphiphile-based supramolecular filaments exhibit fast, physical cross-linking under physiological conditions. Our ex vivo studies suggest that the hydrogelator strongly adheres to the wet surfaces of multiple organs, and the extent of binding to collagen influences release kinetics from the gel. We envision that the sprayable organ-adhesive hydrogel can serve to enhance the efficacy of incorporated therapeutics for many biomedical applications.
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Affiliation(s)
- Caleb F Anderson
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Rami W Chakroun
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department of Chemical Engineering and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Maria E Grimmett
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Christopher J Domalewski
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Feihu Wang
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Honggang Cui
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department of Oncology and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, United States
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27
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Ma S, Gu S, Zhang J, Qi W, Lin Z, Zhai W, Zhan J, Li Q, Cai Y, Lu Y. Robust drug bioavailability and safety for rheumatoid arthritis therapy using D-amino acids-based supramolecular hydrogels. Mater Today Bio 2022; 15:100296. [PMID: 35665233 PMCID: PMC9157599 DOI: 10.1016/j.mtbio.2022.100296] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 05/12/2022] [Accepted: 05/14/2022] [Indexed: 01/13/2023]
Affiliation(s)
- Shaodan Ma
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Diseases, Guangzhou, 510280, China
- Shenshan Medical Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Shanwei, 516600, China
| | - Shunan Gu
- Department of Joint and Orthopedics, Orthopedic Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Jinwei Zhang
- Department of Joint and Orthopedics, Orthopedic Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Weizhong Qi
- Department of Joint and Orthopedics, Orthopedic Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Zhaowei Lin
- Department of Joint and Orthopedics, Orthopedic Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Weicheng Zhai
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Diseases, Guangzhou, 510280, China
| | - Jie Zhan
- Department of Laboratory Medicine, Guangdong Engineering and Technology Research Center for Rapid Diagnostic Biosensors, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Qi Li
- Department of Joint and Orthopedics, Orthopedic Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
- Corresponding author.
| | - Yanbin Cai
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Diseases, Guangzhou, 510280, China
- Corresponding author.
| | - Yao Lu
- Department of Joint and Orthopedics, Orthopedic Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
- Guangdong Key Lab of Orthopedic Technology and Implant, Guangzhou, 510010, China
- Corresponding author. Department of Joint and Orthopedics, Orthopedic Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.
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28
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Zhang H, Fu X, Zhang S, Li Q, Chen Y, Liu H, Zhou W, Wei S. Strategy of Stem Cell Transplantation for Bone Regeneration with Functionalized Biomaterials and Vascularized Tissues in Immunocompetent Mice. ACS Biomater Sci Eng 2022; 8:1656-1666. [PMID: 35341241 DOI: 10.1021/acsbiomaterials.1c01512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The use of human bone marrow mesenchymal stem cells (hBMSCs) to regenerate and repair bone tissue defects is a complex research field of bone tissue engineering; nevertheless, it is a hot topic. One of the biggest problems is the limited survival and osteogenic capacity of the transplanted cells within the host tissue. Even for hBMSCs with their low immunogenicity, the body will still cause a local immune-inflammatory response directed against the allogeneic cells and thereby reduce the activity of the transplanted cells. Even in the case of successful transplantation, the lack of vascularization at the transplantation site makes it difficult for the transplanted cells to exchange nutrients and metabolic wastes that ultimately affects bone regeneration. In this study, we covalently modified alginate with RGD and QK peptides that were injected subcutaneously into immunocompetent mice. Histological analysis, as well as ELISA techniques, proved that this method is able to provide bioactive stem cell transplant beds containing functionalized biomaterials and vascularized surrounding tissues. Inflammation-related factors, such as IL-2, IL-6, TNF-α, and IFN-γ, around the cell graft beds decreased with time and were lowest at the second week. Then, the hBMSCs were injected into the cell transplantation beds intended to form vascularized bonelike tissues that were evaluated by micro-computed tomography (Micro CT), histological, and immunohistochemical analyses. The results showed that the expression of osteogenesis-related proteins RUNX2, COL1A1, and OPN, as well as the expression of angiogenic factor vWF and cartilage-related protein COL2A1 were significantly upregulated in the hBMSC-derived osteogenic tissue. These results suggest that the stem cell transplantation strategy by constructing bioactive cell transplant beds is effective to enhance the bone regeneration capacity of hBMSCs and holds great potential in bone tissue engineering.
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Affiliation(s)
- He Zhang
- Central Laboratory, and Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Peking University, Beijing 100081, P. R. China
| | - Xiaoming Fu
- Central Laboratory, and Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Peking University, Beijing 100081, P. R. China
| | - Siqi Zhang
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, P. R. China
| | - Qian Li
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, P. R. China
| | - Yang Chen
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, P. R. China
| | - Hao Liu
- Central Laboratory, and Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Peking University, Beijing 100081, P. R. China
| | - Wen Zhou
- Central Laboratory, and Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Peking University, Beijing 100081, P. R. China
| | - Shicheng Wei
- Central Laboratory, and Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Peking University, Beijing 100081, P. R. China.,Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, P. R. China
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29
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Hao Z, Li H, Wang Y, Hu Y, Chen T, Zhang S, Guo X, Cai L, Li J. Supramolecular Peptide Nanofiber Hydrogels for Bone Tissue Engineering: From Multihierarchical Fabrications to Comprehensive Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2103820. [PMID: 35128831 PMCID: PMC9008438 DOI: 10.1002/advs.202103820] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 01/02/2022] [Indexed: 05/03/2023]
Abstract
Bone tissue engineering is becoming an ideal strategy to replace autologous bone grafts for surgical bone repair, but the multihierarchical complexity of natural bone is still difficult to emulate due to the lack of suitable biomaterials. Supramolecular peptide nanofiber hydrogels (SPNHs) are emerging biomaterials because of their inherent biocompatibility, satisfied biodegradability, high purity, facile functionalization, and tunable mechanical properties. This review initially focuses on the multihierarchical fabrications by SPNHs to emulate natural bony extracellular matrix. Structurally, supramolecular peptides based on distinctive building blocks can assemble into nanofiber hydrogels, which can be used as nanomorphology-mimetic scaffolds for tissue engineering. Biochemically, bioactive motifs and bioactive factors can be covalently tethered or physically absorbed to SPNHs to endow various functions depending on physiological and pharmacological requirements. Mechanically, four strategies are summarized to optimize the biophysical microenvironment of SPNHs for bone regeneration. Furthermore, comprehensive applications about SPNHs for bone tissue engineering are reviewed. The biomaterials can be directly used in the form of injectable hydrogels or composite nanoscaffolds, or they can be used to construct engineered bone grafts by bioprinting or bioreactors. Finally, continuing challenges and outlook are discussed.
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Affiliation(s)
- Zhuowen Hao
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Hanke Li
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Yi Wang
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Yingkun Hu
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Tianhong Chen
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Shuwei Zhang
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Xiaodong Guo
- Department of OrthopedicsUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Road 1277Wuhan430022China
| | - Lin Cai
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Jingfeng Li
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
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30
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Guan T, Li J, Chen C, Liu Y. Self-Assembling Peptide-Based Hydrogels for Wound Tissue Repair. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104165. [PMID: 35142093 PMCID: PMC8981472 DOI: 10.1002/advs.202104165] [Citation(s) in RCA: 92] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 12/23/2021] [Indexed: 05/02/2023]
Abstract
Wound healing is a long-term, multistage biological process that includes hemostasis, inflammation, proliferation, and tissue remodeling and requires intelligent designs to provide comprehensive and convenient treatment. The complexity of wounds has led to a lack of adequate wound treatment materials, which must systematically regulate unique wound microenvironments. Hydrogels have significant advantages in wound treatment due to their ability to provide spatiotemporal control over the wound healing process. Self-assembling peptide-based hydrogels are particularly attractive due to their innate biocompatibility and biodegradability along with additional advantages including ligand-receptor recognition, stimulus-responsive self-assembly, and the ability to mimic the extracellular matrix. The ability of peptide-based materials to self-assemble in response to the physiological environment, resulting in functionalized microscopic structures, makes them conducive to wound treatment. This review introduces several self-assembling peptide-based systems with various advantages and emphasizes recent advances in self-assembling peptide-based hydrogels that allow for precise control during different stages of wound healing. Moreover, the development of multifunctional self-assembling peptide-based hydrogels that can regulate and remodel the wound immune microenvironment in wound therapy with spatiotemporal control has also been summarized. Overall, this review sheds light on the future clinical and practical applications of self-assembling peptide-based hydrogels.
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Affiliation(s)
- Tong Guan
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology of ChinaBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Jiayang Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology of ChinaBeijing100190P. R. China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology of ChinaBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
- GBA National Institute for Nanotechnology InnovationGuangdong510700P. R. China
| | - Ying Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology of ChinaBeijing100190P. R. China
- GBA National Institute for Nanotechnology InnovationGuangdong510700P. R. China
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31
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He S, Walimbe T, Chen H, Gao K, Kumar P, Wei Y, Hao D, Liu R, Farmer DL, Lam KS, Zhou J, Panitch A, Wang A. Bioactive extracellular matrix scaffolds engineered with proangiogenic proteoglycan mimetics and loaded with endothelial progenitor cells promote neovascularization and diabetic wound healing. Bioact Mater 2022; 10:460-473. [PMID: 34901560 PMCID: PMC8636679 DOI: 10.1016/j.bioactmat.2021.08.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 08/13/2021] [Accepted: 08/13/2021] [Indexed: 02/07/2023] Open
Abstract
Diabetic ischemic wound treatment remains a critical clinical challenge. Neovascularization plays a significant role in wound healing during all stages of the tissue repair process. Strategies that enhance angiogenesis and neovascularization and improve ischemic pathology may promote the healing of poor wounds, particularly diabetic wounds in highly ischemic conditions. We previously identified a cyclic peptide LXW7 that specifically binds to integrin αvβ3 on endothelial progenitor cells (EPCs) and endothelial cells (ECs), activates vascular endothelial growth factor (VEGF) receptors, and promotes EC growth and maturation. In this study, we designed and synthesized a multi-functional pro-angiogenic molecule by grafting LXW7 and collagen-binding peptides (SILY) to a dermatan sulfate (DS) glycosaminoglycan backbone, named LXW7-DS-SILY, and further employed this multi-functional molecule to functionalize collagen-based extracellular matrix (ECM) scaffolds. We confirmed that LXW7-DS-SILY modification significantly promoted EPC attachment and growth on the ECM scaffolds in vitro and supported EPC survival in vivo in the ischemic environment. When applied in an established Zucker Diabetic Fatty (ZDF) rat ischemic skin flap model, LXW7-DS-SILY-functionalized ECM scaffolds loaded with EPCs significantly improved wound healing, enhanced neovascularization and modulated collagen fibrillogenesis in the ischemic environment. Altogether, this study provides a promising novel treatment to accelerate diabetic ischemic wound healing, thereby reducing limb amputation and mortality of diabetic patients.
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Affiliation(s)
- Siqi He
- Department of Burns and Plastic Surgery, The Third Xiangya Hospital of Central South University, China
- Department of Surgery, UC Davis, United States
| | - Tanaya Walimbe
- Department of Biomedical Engineering, UC Davis, United States
| | | | - Kewa Gao
- Department of Burns and Plastic Surgery, The Third Xiangya Hospital of Central South University, China
- Department of Surgery, UC Davis, United States
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children Northern California, United States
| | - Priyadarsini Kumar
- Department of Surgery, UC Davis, United States
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children Northern California, United States
| | - Yifan Wei
- Department of Surgery, UC Davis, United States
| | - Dake Hao
- Department of Surgery, UC Davis, United States
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children Northern California, United States
| | - Ruiwu Liu
- Department of Biochemistry and Molecular Medicine, UC Davis, United States
| | - Diana L Farmer
- Department of Surgery, UC Davis, United States
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children Northern California, United States
| | - Kit S Lam
- Department of Biochemistry and Molecular Medicine, UC Davis, United States
| | - Jianda Zhou
- Department of Burns and Plastic Surgery, The Third Xiangya Hospital of Central South University, China
| | - Alyssa Panitch
- Department of Surgery, UC Davis, United States
- Department of Biomedical Engineering, UC Davis, United States
| | - Aijun Wang
- Department of Surgery, UC Davis, United States
- Department of Biomedical Engineering, UC Davis, United States
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children Northern California, United States
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32
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Qiu R, Sasselli IR, Álvarez Z, Sai H, Ji W, Palmer LC, Stupp SI. Supramolecular Copolymers of Peptides and Lipidated Peptides and Their Therapeutic Potential. J Am Chem Soc 2022; 144:5562-5574. [PMID: 35296133 DOI: 10.1021/jacs.2c00433] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Supramolecular peptide chemistry offers a versatile strategy to create chemical systems useful as new biomaterials with potential to deliver nearly 1000 known candidate peptide therapeutics or integrate other types of bioactivity. We report here on the co-assembly of lipidated β-sheet-forming peptides with soluble short peptides, yielding supramolecular copolymers with various degrees of internal order. At low peptide concentrations, the co-monomer is protected by lodging within internal aqueous compartments and stabilizing internal β-sheets formed by the lipidated peptides. At higher concentrations, the peptide copolymerizes with the lipidated peptide and disrupts the β-sheet secondary structure. The thermodynamic metastability of the co-assembly in turn leads to the spontaneous release of peptide monomers and thus serves as a potential mechanism for drug delivery. We demonstrated the function of these supramolecular systems using a drug candidate for Alzheimer's disease and found that the copolymers enhance neuronal cell viability when the soluble peptide is released from the assemblies.
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Affiliation(s)
- Ruomeng Qiu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Ivan R Sasselli
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States
| | - Zaida Álvarez
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States.,Department of Medicine, Northwestern University, 676 N. St. Clair Street, Chicago, Illinois 60611, United States
| | - Hiroaki Sai
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States.,Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Wei Ji
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States
| | - Liam C Palmer
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States.,Department of Medicine, Northwestern University, 676 N. St. Clair Street, Chicago, Illinois 60611, United States.,Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States.,Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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33
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Alzate-Correa D, Lawrence WR, Salazar-Puerta A, Higuita-Castro N, Gallego-Perez D. Nanotechnology-Driven Cell-Based Therapies in Regenerative Medicine. AAPS J 2022; 24:43. [PMID: 35292878 PMCID: PMC9074705 DOI: 10.1208/s12248-022-00692-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/10/2022] [Indexed: 12/23/2022] Open
Abstract
The administration of cells as therapeutic agents has emerged as a novel approach to complement the use of small molecule drugs and other biologics for the treatment of numerous conditions. Although the use of cells for structural and/or functional tissue repair and regeneration provides new avenues to address increasingly complex disease processes, it also faces numerous challenges related to efficacy, safety, and translational potential. Recent advances in nanotechnology-driven cell therapies have the potential to overcome many of these issues through precise modulation of cellular behavior. Here, we describe several approaches that illustrate the use of different nanotechnologies for the optimization of cell therapies and discuss some of the obstacles that need to be overcome to allow for the widespread implementation of nanotechnology-based cell therapies in regenerative medicine.
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Affiliation(s)
- D Alzate-Correa
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, 43210, USA
| | - W R Lawrence
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, 43210, USA.,Biomedical Sciences Graduate Program, The Ohio State University, Columbus, Ohio, 43210, USA
| | - A Salazar-Puerta
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, 43210, USA
| | - N Higuita-Castro
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, 43210, USA.,Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, Ohio, 43210, USA.,Department of Surgery, The Ohio State University, 140 W. 19th Ave, room 3018, Columbus, Ohio, 43210, USA
| | - D Gallego-Perez
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, 43210, USA. .,Department of Surgery, The Ohio State University, 140 W. 19th Ave, room 3018, Columbus, Ohio, 43210, USA.
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34
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Hyun J, Lee M, Rehman J, Pajcini KV, Malik AB. Notch1 promotes ordered revascularization through Semaphorin 3g modulation of downstream vascular patterning signalling factors. J Physiol 2022; 600:509-530. [PMID: 34921404 PMCID: PMC9305962 DOI: 10.1113/jp282286] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 11/29/2021] [Indexed: 11/12/2022] Open
Abstract
Here we genetically and functionally addressed potential pathways of Notch signalling in mediating vascular regeneration in mouse models. We first used transgenic adult mice with either gain- or loss-of-function Notch signalling in vascular endothelial cells and monitored perfusion in the hindlimb following ischaemia induced by femoral artery ligation. Mice deficient in Notch signalling showed defective perfusion recovery and expansion of collateral arteries. Transcriptomics analysis of arterial endothelial cells in the Notch mutants identified the guidance factor Sema3g as a candidate gene mediating reperfusion downstream of Notch. Studies in the retinal circulation showed the central role of SEMA3G downstream of Notch signalling in the orderly regulation of vascular patterning. These studies in multiple vascular beds show the primacy of Notch signalling and downstream generation of guidance peptides such as SEMA3G in promoting well-ordered vascular regeneration. KEY POINTS: Notch signalling is a critical mediator of revascularization. Yet the cellular processes activated during recovery following vascular injury are incompletely understood. Here we used genetic and cellular approaches in two different vascular beds and cultured endothelial cells to address the generalizability of mechanisms. By utilizing a highly reproducible murine model of hindlimb ischaemia in transgenic mice in which Notch signalling was inhibited at the transcriptional level, we demonstrated the centrality of Notch signalling in perfusion recovery and revascularization. RNA-sequencing of Notch mutants identified class 3 Semaphorins regulated by Notch signalling as downstream targets. Studies in retinal vessels and endothelial cells showed an essential role of guidance peptide Sema3g as a modulator of angiogenesis and orderly vascular patterning. The Notch to Sema3g signalling axis functions as a feedback mechanism to sculpt the growing vasculature in multiple beds.
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Affiliation(s)
- James Hyun
- Department of Pharmacology and Regenerative Medicine, University of Illinois College of Medicine, Chicago, IL, USA
| | - Monica Lee
- Department of Physiology and Biophysics, University of Illinois College of Medicine, Chicago, IL, USA
| | - Jalees Rehman
- Department of Pharmacology and Regenerative Medicine, University of Illinois College of Medicine, Chicago, IL, USA
| | - Kostandin V Pajcini
- Department of Pharmacology and Regenerative Medicine, University of Illinois College of Medicine, Chicago, IL, USA
| | - Asrar B Malik
- Department of Pharmacology and Regenerative Medicine, University of Illinois College of Medicine, Chicago, IL, USA
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35
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Redondo-Gómez C, Padilla-Lopátegui S, Mata A, Azevedo HS. Peptide Amphiphile Hydrogels Based on Homoternary Cucurbit[8]uril Host-Guest Complexes. Bioconjug Chem 2022; 33:111-120. [PMID: 34914370 DOI: 10.1021/acs.bioconjchem.1c00441] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Supramolecular hydrogels based on peptide amphiphiles (PAs) are promising materials for tissue engineering and model extracellular matrixes for biological studies. While PA hydrogels are conventionally formed via electrostatic screening, new hydrogelation mechanisms might help to improve the design and functionality of these materials. Here, we present a host-guest-mediated PA hydrogelation method that relies on the formation of a host-guest homoternary complex with cucurbit[8]uril (CB[8]) and aromatic amino-acid-bearing PA nanofibers. As a result of the host-guest cross-linking between PA nanofibers, hierarchical morphologies and increased stiffness were found when host-guest-mediated PA hydrogels were compared to their ion-based equivalents. Additionally, both families of hydrogels exhibited similar biocompatibilities. These results demonstrate that CB[8]-mediated hydrogelation can be used as an alternative cross-linking method to upgrade the design of PA materials and extend their biomedical applications.
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Affiliation(s)
- Carlos Redondo-Gómez
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, U.K
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, U.K
- National Nanotechnology Laboratory LANOTEC, National Center for High Technology CeNAT, 1174-1200 Pavas, San José 10109, Costa Rica
| | - Soraya Padilla-Lopátegui
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, U.K
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, U.K
| | - Alvaro Mata
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, U.K
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, U.K
- School of Pharmacy, University of Nottingham, University Park, Nottingham NG7 2RD, U.K
- Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, U.K
- Biodiscovery Institute, University of Nottingham, University Park, Nottingham NG7 2RD, U.K
| | - Helena S Azevedo
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, U.K
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, U.K
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36
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Sasselli IR, Syrgiannis Z, Sather NA, Palmer LC, Stupp SI. Modeling Interactions within and between Peptide Amphiphile Supramolecular Filaments. J Phys Chem B 2022; 126:650-659. [PMID: 35029997 DOI: 10.1021/acs.jpcb.1c09258] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Many peptides are able to self-assemble into one-dimensional (1D) nanostructures, such as cylindrical fibers or ribbons of variable widths, but the relationship between the morphology of 1D objects and their molecular structure is not well understood. Here, we use coarse-grained molecular dynamics (CG-MD) simulations to study the nanostructures formed by self-assembly of different peptide amphiphiles (PAs). The results show that ribbons are hierarchical superstructures formed by laterally assembled cylindrical fibers. Simulations starting from bilayer structures demonstrate the formation of filaments, whereas other simulations starting from filaments indicate varying degrees of interaction among them depending on chemical structure. These interactions are verified by observations using atomic force microscopy of the various systems. The interfilament interactions are predicted to be strongest in supramolecular assemblies that display hydrophilic groups on their surfaces, while those with hydrophobic ones are predicted to interact more weakly as confirmed by viscosity measurements. The simulations also suggest that peptide amphiphiles with hydrophobic termini bend to reduce their interfacial energy with water, which may explain why these systems do not collapse into superstructures of bundled filaments. The simulations suggest that future experiments will need to address mechanistic questions about the self-assembly of these systems into hierarchical structures, namely, the preformation of interactive filaments vs equilibration of large assemblies into superstructures.
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Affiliation(s)
- Ivan R Sasselli
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, 11th Floor, Chicago, Illinois 60611, United States.,Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Zois Syrgiannis
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, 11th Floor, Chicago, Illinois 60611, United States.,Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Nicholas A Sather
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, 11th Floor, Chicago, Illinois 60611, United States.,Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Liam C Palmer
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, 11th Floor, Chicago, Illinois 60611, United States.,Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, 11th Floor, Chicago, Illinois 60611, United States.,Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States.,Department of Medicine, Northwestern University, 676 N St. Clair, Chicago, Illinois 60611, United States.,Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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37
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Wu J, Liyarita BR, Zhu H, Liu M, Hu X, Shao F. Self-Assembly of Dendritic DNA into a Hydrogel: Application in Three-Dimensional Cell Culture. ACS APPLIED MATERIALS & INTERFACES 2021; 13:49705-49712. [PMID: 34658242 DOI: 10.1021/acsami.1c14445] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
With inherent biocompatibility, biodegradability, and unique programmability, hydrogels with a DNA framework show great potential in three-dimensional (3D) cell culture. Here, a DNA hydrogel was assembled by a dendritic DNA with four branches. The hydrogel showed tunable mechanical strength and reversible thixotropy even under a nanomolar DNA concentration. The cell culture medium can be converted into the hydrogel isothermally at physiological temperature. This DNA hydrogel allows both cancer and somatic cells to be seeded in situ and to achieve high proliferation and viability. The bis-entity of dendritic branches enabled the specific loading of bioactive clues to regulate cell behaviors. Thus, the dendritic DNA-assembled hydrogel could serve as a highly biocompatible, readily functionalizing, and easy-casting gel platform for 3D cell culture.
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Affiliation(s)
- Jingyuan Wu
- Division of Chemistry and Biological Chemistry, Nanyang Technological University, 637371 Singapore
| | - Bella Rosa Liyarita
- Division of Chemistry and Biological Chemistry, Nanyang Technological University, 637371 Singapore
| | - Haishuang Zhu
- ZJU-UIUC Institute, International Campus, Zhejiang University, 718 East Haizhou Road, Haining, Zhejiang 314400, China
| | - Ming Liu
- Temasek Laboratories@NTU, Nanyang Technological University, 637371 Singapore
| | - Xiao Hu
- School of Materials Science and Engineering and Environment Chemistry and Materials Centre, NEWRI, Nanyang Technological University, 637371 Singapore
| | - Fangwei Shao
- ZJU-UIUC Institute, International Campus, Zhejiang University, 718 East Haizhou Road, Haining, Zhejiang 314400, China
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38
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Siddiqui Z, Sarkar B, Kim KK, Kumar A, Paul R, Mahajan A, Grasman JM, Yang J, Kumar VA. Self-assembling Peptide Hydrogels Facilitate Vascularization in Two-Component Scaffolds. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2021; 422:130145. [PMID: 34054331 PMCID: PMC8158327 DOI: 10.1016/j.cej.2021.130145] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
One of the major constraints against using polymeric scaffolds as tissue-regenerative matrices is a lack of adequate implant vascularization. Self-assembling peptide hydrogels can sequester small molecules and biological macromolecules, and they can support infiltrating cells in vivo. Here we demonstrate the ability of self-assembling peptide hydrogels to facilitate angiogenic sprouting into polymeric scaffolds after subcutaneous implantation. We constructed two-component scaffolds that incorporated microporous polymeric scaffolds and viscoelastic nanoporous peptide hydrogels. Nanofibrous hydrogels modified the biocompatibility and vascular integration of polymeric scaffolds with microscopic pores (pore diameters: 100-250 μm). In spite of similar amphiphilic sequences, charges, secondary structures, and supramolecular nanostructures, two soft hydrogels studied herein had different abilities to aid implant vascularization, but had similar levels of cellular infiltration. The functional difference of the peptide hydrogels was predicted by the difference in the bioactive moieties inserted into the primary sequences of the peptide monomers. Our study highlights the utility of soft supramolecular hydrogels to facilitate host-implant integration and control implant vascularization in biodegradable polyester scaffolds in vivo. Our study provides useful tools in designing multi-component regenerative scaffolds that recapitulate vascularized architectures of native tissues.
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Affiliation(s)
- Zain Siddiqui
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Biplab Sarkar
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Ka Kyung Kim
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Arjun Kumar
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Reshma Paul
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Aryan Mahajan
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Jonathan M. Grasman
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Jian Yang
- Department of Biomedical Engineering, Huck Institutes of The Life Sciences, Materials Research Institute, Pennsylvania State University, University Park, PA, USA
| | - Vivek A. Kumar
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
- Department of Chemical & Materials Engineering, New Jersey Institute of Technology, Newark, NJ, USA
- Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ, USA
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39
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Fan F, Saha S, Hanjaya-Putra D. Biomimetic Hydrogels to Promote Wound Healing. Front Bioeng Biotechnol 2021; 9:718377. [PMID: 34616718 PMCID: PMC8488380 DOI: 10.3389/fbioe.2021.718377] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 08/13/2021] [Indexed: 01/13/2023] Open
Abstract
Wound healing is a common physiological process which consists of a sequence of molecular and cellular events that occur following the onset of a tissue lesion in order to reconstitute barrier between body and external environment. The inherent properties of hydrogels allow the damaged tissue to heal by supporting a hydrated environment which has long been explored in wound management to aid in autolytic debridement. However, chronic non-healing wounds require added therapeutic features that can be achieved by incorporation of biomolecules and supporting cells to promote faster and better healing outcomes. In recent decades, numerous hydrogels have been developed and modified to match the time scale for distinct stages of wound healing. This review will discuss the effects of various types of hydrogels on wound pathophysiology, as well as the ideal characteristics of hydrogels for wound healing, crosslinking mechanism, fabrication techniques and design considerations of hydrogel engineering. Finally, several challenges related to adopting hydrogels to promote wound healing and future perspectives are discussed.
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Affiliation(s)
- Fei Fan
- Bioengineering Graduate Program, Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, United States
| | - Sanjoy Saha
- Bioengineering Graduate Program, Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, United States
| | - Donny Hanjaya-Putra
- Bioengineering Graduate Program, Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, United States
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, United States
- Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN, United States
- Center for Stem Cells and Regenerative Medicine, University of Notre Dame, Notre Dame, IN, United States
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40
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Park MJ, An YH, Choi YH, Kim HD, Hwang NS. Enhanced Neovascularization Using Injectable and rhVEGF-Releasing Cryogel Microparticles. Macromol Biosci 2021; 21:e2100234. [PMID: 34382323 DOI: 10.1002/mabi.202100234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Indexed: 11/09/2022]
Abstract
Cryogels are gel networks or scaffolds with a large porous structure; they can be tailored for injectability and for possessing a shape-memory ability. Herein, a growth factor-releasing cryogel microparticle (CMP) system is fabricated, and the therapeutic efficacy of recombinant human vascular endothelial growth factor (rhVEGF)-loaded CMP (V-CMP) for neovascularization is investigated. To prepare the cryogels, both methacrylated chitosan (Chi-MA) and methacrylated chondroitin sulfate (CS-MA) are used, and crosslinking using a radical crosslinking reaction is established. The physical, mechanical, and biological properties of the cryogels are analyzed by varying the amount of CS-MA used. The cryogels are then pulverized, and microsized CMPs are fabricated. CMPs dispersed in saline demonstrate a shear-thinning property, and can thus be extruded through a 23G needle. Additionally, V-CMP exhibit a sustained release profile of rhVEGF and enhance the in vitro proliferation of endothelial cells. Finally, neovascularization and effective tissue necrosis prevention are observed when V-CMPs are injected into a hindlimb ischemia mouse model. Thus, the injectable V-CMP system developed herein demonstrates a high potential utility in various tissue regeneration applications based on cell or growth factor delivery.
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Affiliation(s)
- Mihn Jeong Park
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Young-Hyeon An
- School of Chemical and Biological Engineering, Institute of Chemical Processes, BioMAX/N-Bio Institute, Seoul National University, Seoul, 08826, Republic of Korea.,Institute of Engineering Research, Seoul National University, Seoul, 08826, Republic of Korea
| | - Young Hwan Choi
- School of Chemical and Biological Engineering, Institute of Chemical Processes, BioMAX/N-Bio Institute, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hwan D Kim
- Department of Polymer Science and Engineering, Department of Biomedical Engineering, Korea National University of Transportation, Chungju, 27469, Republic of Korea
| | - Nathaniel S Hwang
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea.,School of Chemical and Biological Engineering, Institute of Chemical Processes, BioMAX/N-Bio Institute, Seoul National University, Seoul, 08826, Republic of Korea.,Institute of Engineering Research, Seoul National University, Seoul, 08826, Republic of Korea
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Synthesis, Characterization and Evaluation of Peptide Nanostructures for Biomedical Applications. Molecules 2021; 26:molecules26154587. [PMID: 34361740 PMCID: PMC8348434 DOI: 10.3390/molecules26154587] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/04/2021] [Accepted: 07/17/2021] [Indexed: 12/19/2022] Open
Abstract
There is a challenging need for the development of new alternative nanostructures that can allow the coupling and/or encapsulation of therapeutic/diagnostic molecules while reducing their toxicity and improving their circulation and in-vivo targeting. Among the new materials using natural building blocks, peptides have attracted significant interest because of their simple structure, relative chemical and physical stability, diversity of sequences and forms, their easy functionalization with (bio)molecules and the possibility of synthesizing them in large quantities. A number of them have the ability to self-assemble into nanotubes, -spheres, -vesicles or -rods under mild conditions, which opens up new applications in biology and nanomedicine due to their intrinsic biocompatibility and biodegradability as well as their surface chemical reactivity via amino- and carboxyl groups. In order to obtain nanostructures suitable for biomedical applications, the structure, size, shape and surface chemistry of these nanoplatforms must be optimized. These properties depend directly on the nature and sequence of the amino acids that constitute them. It is therefore essential to control the order in which the amino acids are introduced during the synthesis of short peptide chains and to evaluate their in-vitro and in-vivo physico-chemical properties before testing them for biomedical applications. This review therefore focuses on the synthesis, functionalization and characterization of peptide sequences that can self-assemble to form nanostructures. The synthesis in batch or with new continuous flow and microflow techniques will be described and compared in terms of amino acids sequence, purification processes, functionalization or encapsulation of targeting ligands, imaging probes as well as therapeutic molecules. Their chemical and biological characterization will be presented to evaluate their purity, toxicity, biocompatibility and biodistribution, and some therapeutic properties in vitro and in vivo. Finally, their main applications in the biomedical field will be presented so as to highlight their importance and advantages over classical nanostructures.
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A Chemotactic Functional Scaffold with VEGF-Releasing Peptide Amphiphiles Facilitates Bone Regeneration by BMP-2 in a Large-Scale Rodent Cranial Defect Model. Plast Reconstr Surg 2021; 147:386-397. [PMID: 33235044 DOI: 10.1097/prs.0000000000007551] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Current common techniques for repairing calvarial defects by autologous bone grafting and alloplastic implants have significant limitations. In this study, the authors investigated a novel alternative approach to bone repair based on peptide amphiphile nanofiber gels that are engineered to control the release of vascular endothelial growth factor (VEGF) to recruit circulating stem cells to a site of bone regeneration and facilitate bone healing by bone morphogenetic protein-2 (BMP-2). METHODS VEGF release kinetics from peptide amphiphile gels were evaluated. Chemotactic functional scaffolds were fabricated by combining collagen sponges with peptide amphiphile gels containing VEGF. The in vitro and in vivo chemotactic activities of the scaffolds were evaluated by measuring mesenchymal stem cell migration, and angiogenic capability of the scaffolds was also evaluated. Large-scale rodent cranial bone defects were created to evaluate bone regeneration after implanting the scaffolds and other control materials. RESULTS VEGF was released from peptide amphiphile in a controlled-release manner. In vitro migration of mesenchymal stem cells was significantly greater when exposed to chemotactic functional scaffolds compared to control scaffolds. In vivo chemotaxis was evidenced by migration of tracer-labeled mesenchymal stem cells to the chemotactic functional scaffolds. Chemotactic functional scaffolds showed significantly increased angiogenesis in vivo. Successful bone regeneration was noted in the defects treated with chemotactic functional scaffolds and BMP-2. CONCLUSIONS The authors' observations suggest that this bioengineered construct successfully acts as a chemoattractant for circulating mesenchymal stem cells because of controlled release of VEGF from the peptide amphiphile gels. The chemotactic functional scaffolds may play a role in the future design of clinically relevant bone graft substitutes for large-scale bone defects.
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Yu S, Xian S, Ye Z, Pramudya I, Webber MJ. Glucose-Fueled Peptide Assembly: Glucagon Delivery via Enzymatic Actuation. J Am Chem Soc 2021; 143:12578-12589. [PMID: 34280305 DOI: 10.1021/jacs.1c04570] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Nature achieves remarkable function from the formation of transient, nonequilibrium materials realized through continuous energy input. The role of enzymes in catalyzing chemical transformations to drive such processes, often as part of stimuli-directed signaling, governs both material formation and lifetime. Inspired by the intricate nonequilibrium nanostructures of the living world, this work seeks to create transient materials in the presence of a consumable glucose stimulus under enzymatic control of glucose oxidase. Compared to traditional glucose-responsive materials, which typically engineer degradation to release insulin under high-glucose conditions, the transient nanofibrillar hydrogel materials here are stabilized in the presence of glucose but destabilized under conditions of limited glucose to release encapsulated glucagon. In the context of blood glucose control, glucagon offers a key antagonist to insulin in responding to hypoglycemia by signaling the release of glucose stored in tissues so as to restore normal blood glucose levels. Accordingly, these materials are evaluated in a prophylactic capacity in diabetic mice to release glucagon in response to a sudden drop in blood glucose brought on by an insulin overdose. Delivery of glucagon using glucose-fueled nanofibrillar hydrogels succeeds in limiting the onset and severity of hypoglycemia in mice. This general strategy points to a new paradigm in glucose-responsive materials, leveraging glucose as a stabilizing cue for responsive glucagon delivery in combating hypoglycemia. Moreover, compared to most fundamental reports achieving nonequilibrium and/or fueled classes of materials, the present work offers a rare functional example using a disease-relevant fuel to drive deployment of a therapeutic.
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Affiliation(s)
- Sihan Yu
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, Indiana 46556, United States
| | - Sijie Xian
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, Indiana 46556, United States
| | - Zhou Ye
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, Indiana 46556, United States
| | - Irawan Pramudya
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, Indiana 46556, United States
| | - Matthew J Webber
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, Indiana 46556, United States
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Zhang Z, Ai S, Yang Z, Li X. Peptide-based supramolecular hydrogels for local drug delivery. Adv Drug Deliv Rev 2021; 174:482-503. [PMID: 34015417 DOI: 10.1016/j.addr.2021.05.010] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 04/26/2021] [Accepted: 05/11/2021] [Indexed: 12/19/2022]
Abstract
Peptide-based supramolecular hydrogels have shown great promise as drug delivery systems (DDSs) because of their excellent biocompatibility, biodegradability, biological function, synthetic feasibility, and responsiveness to external stimuli. Self-assembling peptide molecules are able rationally designed into specific nanoarchitectures in response to the different environmental factors under different circumstances. Among all stimuli that have been investigated, utilizing inherent biological microenvironment, such as metal ions, enzymes and endogenous redox species, to trigger self-assembly endows such systems spatiotemporal controllability to transport therapeutics more accurately. Materials formed by weak non-covalent interactions result in the shear-thinning and immediate recovery behavior. Thus, they are injectable via a syringe or catheter, making them the ideal vehicles to deliver drugs. Based on the above merits, self-assembling peptide-based DDSs have been applied to treat various diseases via direct administration at the lesion site. Herein, in this review, we outline the triggers for inducing peptide-based hydrogels formation and serving as DDSs. We also described the advancements of peptide-based supramolecular hydrogels for local drug delivery, including intratumoral, subcutaneous, ischemia-related tissue (intramyocardial, intrarenal, and ischemic hind limb), and ocular administration. Finally, we give a brief perspective about the prospects and challenges in this field.
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Affiliation(s)
- Zhenghao Zhang
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, PR China
| | - Sifan Ai
- Key Laboratory of Bioactive Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, PR China
| | - Zhimou Yang
- Key Laboratory of Bioactive Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, PR China; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, PR China.
| | - Xingyi Li
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, PR China.
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Nair RV, Farrukh A, del Campo A. Light-Regulated Angiogenesis via a Phototriggerable VEGF Peptidomimetic. Adv Healthc Mater 2021; 10:e2100488. [PMID: 34110713 DOI: 10.1002/adhm.202100488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 05/06/2021] [Indexed: 12/31/2022]
Abstract
The application of growth factor based therapies in regenerative medicine is limited by the high cost, fast degradation kinetics, and the multiple functions of these molecules in the cell, which requires regulated delivery to minimize side effects. Here a photoactivatable peptidomimetic of the vascular endothelial growth factor (VEGF) that allows the light-controlled presentation of angiogenic signals to endothelial cells embedded in hydrogel matrices is presented. A photoresponsive analog of the 15-mer peptidomimetic Ac-KLTWQELYQLKYKGI-NH2 (abbreviated P QK) is prepared by introducing a 3-(4,5-dimethoxy-2-nitrophenyl)-2-butyl (DMNPB) photoremovable protecting group at the Trp4 residue. This modification inhibits the angiogenic potential of the peptide temporally. Light exposure of P QK modified hydrogels provide instructive cues to embedded endothelial cells and promote angiogenesis at the illuminated sites of the 3D culture, with the possibility of spatial control. P QK modified photoresponsive biomaterials offer an attractive approach for the dosed delivery and spatial control of pro-angiogenic factors to support regulated vascular growth by just using light as an external trigger.
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Affiliation(s)
- Roshna V. Nair
- INM − Leibniz Institute for New Materials Saarbrücken 66123 Germany
| | - Aleeza Farrukh
- INM − Leibniz Institute for New Materials Saarbrücken 66123 Germany
| | - Aránzazu del Campo
- INM − Leibniz Institute for New Materials Saarbrücken 66123 Germany
- Chemistry Department Saarland University Saarbrücken 66123 Germany
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Heat shock protein A12B gene therapy improves perfusion, promotes neovascularization, and decreases fibrosis in a murine model of hind limb ischemia. Surgery 2021; 170:969-977. [PMID: 34092373 DOI: 10.1016/j.surg.2021.05.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 04/28/2021] [Accepted: 05/04/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Heat shock protein A12B expressed in endothelial cells is important and required for angiogenesis to form functional vessels in ischemic tissue. We have previously shown the cardioprotective effects of heat shock protein A12B overexpression in a rat model of diabetic myocardial infarction. In this study, we aim to explore the role of heat shock protein A12B in a surgically-induced murine hind-limb ischemia model. MATERIALS AND METHODS Adult 8- to 12-week-old C57BL/6J mice were divided into 2 groups: treated with Adeno.LacZ (control group) and with Adeno.HSPA12B (experimental group) and, with both groups subjected to right femoral artery ligation. Immediately after surgery, mice in both groups received either Adeno.HSPA12B or Adeno.LacZ (1 × 109 plaque forming units) in both the semimembranosus and gastrocnemius muscles of the right limb. The left limb served as the internal control. Both groups underwent serial laser Doppler imaging preoperatively, and again postoperatively until 28 days. Immunohistochemical analysis was performed 3 and 28 days post-surgery. RESULTS Mice in the Adeno.HSPA12B gene therapy group showed improved motor function and a significantly higher blood perfusion ratio on postoperative days 21 and 28, along with better motor function. Immunohistochemical analysis showed increased expression of vascular endothelial growth factor, thioredoxin-1, heme oxygenase, and hypoxia-inducible factor 1α, along with a decreased expression of A-kinase-anchoring protein 12 and thioredoxin-interacting protein levels. The Adeno.HSPA12B-treated group also showed increased capillary and arteriolar density and an increased capillary-myocyte ratio, along with reduced fibrosis compared to the Adeno.LacZ group. CONCLUSION Our study demonstrates that targeted Adeno.HSPA12B gene delivery into ischemic muscle enhances perfusion and angiogenic protein expression. This molecule shows promise for the management of peripheral vascular disease as a potential target for clinical trials and subsequent drug therapy.
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Guo W, Feng W, Huang J, Zhang J, Fan X, Ma S, Li M, Zhan J, Cai Y, Chen M. Supramolecular Self-Assembled Nanofibers Efficiently Activate the Precursor of Hepatocyte Growth Factor for Angiogenesis in Myocardial Infarction Therapy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:22131-22141. [PMID: 33957750 DOI: 10.1021/acsami.0c23153] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The reconstruction of blood perfusion is a crucial therapeutic method to save and protect cardiac function after acute myocardial infarction (AMI). The activation of the hepatocyte growth factor precursor (pro-HGF) has a significant effect on promoting angiogenesis and antiapoptosis. The oxygen/glucose deprivation (OGD) caused by AMI could induce vascular adventitia fibroblasts to differentiate into myofibroblasts and secrete the pro-HGF. Meanwhile, the specific Met receptor of the hepatocyte growth factor (HGF) is upregulated in endothelial cells during AMI. However, the poor prognosis of AMI suggests that the pro-HGF is not effectively activated. Improving the activation efficiency of the pro-HGF may play a positive role in the treatment of AMI. Herein, we designed supramolecular nanofibers self-assembled by compound 1 (Comp.1, Nap-FFEG-IVGGYPWWMDV), which can strongly activate the pro-HGF and initiate HGF-Met signaling. Studies have proven that Comp.1 possesses a better ability to activate the pro-HGF to perform antiapoptosis and pro-angiogenesis. In vivo results have confirmed that the retention time of Comp.1 and its accumulation in the infarct area of the heart are promoted. Moreover, Comp.1 plays an effective role in promoting angiogenesis in the marginal area of AMI, reducing myocardial fibrosis, and protecting cardiac function. Herein, we will optimize the structure of bioactive peptides through supramolecular self-assembly and amplify their therapeutic effect by improving their efficiency, providing a new strategy for the therapy of AMI.
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Affiliation(s)
- Wenjie Guo
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Weijing Feng
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jing Huang
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Jianwu Zhang
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xianglin Fan
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Shaodan Ma
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Minghui Li
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Jie Zhan
- Shunde Hospital, Southern Medical University, the First People's Hospital of Shunde, Foshan 528300, China
| | - Yanbin Cai
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Minsheng Chen
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
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Webber MJ, Pashuck ET. (Macro)molecular self-assembly for hydrogel drug delivery. Adv Drug Deliv Rev 2021; 172:275-295. [PMID: 33450330 PMCID: PMC8107146 DOI: 10.1016/j.addr.2021.01.006] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 01/15/2023]
Abstract
Hydrogels prepared via self-assembly offer scalable and tunable platforms for drug delivery applications. Molecular-scale self-assembly leverages an interplay of attractive and repulsive forces; drugs and other active molecules can be incorporated into such materials by partitioning in hydrophobic domains, affinity-mediated binding, or covalent integration. Peptides have been widely used as building blocks for self-assembly due to facile synthesis, ease of modification with bioactive molecules, and precise molecular-scale control over material properties through tunable interactions. Additional opportunities are manifest in stimuli-responsive self-assembly for more precise drug action. Hydrogels can likewise be fabricated from macromolecular self-assembly, with both synthetic polymers and biopolymers used to prepare materials with controlled mechanical properties and tunable drug release. These include clinical approaches for solubilization and delivery of hydrophobic drugs. To further enhance mechanical properties of hydrogels prepared through self-assembly, recent work has integrated self-assembly motifs with polymeric networks. For example, double-network hydrogels capture the beneficial properties of both self-assembled and covalent networks. The expanding ability to fabricate complex and precise materials, coupled with an improved understanding of biology, will lead to new classes of hydrogels specifically tailored for drug delivery applications.
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Affiliation(s)
- Matthew J Webber
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, IN 46556, USA.
| | - E Thomas Pashuck
- Lehigh University, Department of Bioengineering, Bethlehem, PA 18015, USA.
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Siddiqui Z, Sarkar B, Kim KK, Kadincesme N, Paul R, Kumar A, Kobayashi Y, Roy A, Choudhury M, Yang J, Shimizu E, Kumar VA. Angiogenic hydrogels for dental pulp revascularization. Acta Biomater 2021. [PMID: 33689817 DOI: 10.1016/j.actbio.2021.1003.1001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/24/2023]
Abstract
Angiogenesis is critical for tissue healing and regeneration. Promoting angiogenesis in materials implanted within dental pulp after pulpectomy is a major clinical challenge in endodontics. We demonstrate the ability of acellular self-assembling peptide hydrogels to create extracellular matrix mimetic architectures that guide in vivo development of neovasculature and tissue deposition. The hydrogels possess facile injectability, as well as sequence-level functionalizability. We explore the therapeutic utility of an angiogenic hydrogel to regenerate vascularized pulp-like soft tissue in a large animal (canine) orthotopic model. The regenerated soft tissue recapitulates key features of native pulp, such as blood vessels, neural filaments, and an odontoblast-like layer next to dentinal tubules. Our study establishes angiogenic peptide hydrogels as potent scaffolds for promoting soft tissue regeneration in vivo. STATEMENT OF SIGNIFICANCE: A major challenge to endodontic tissue engineering is the lack of in situ angiogenesis within intracanal implants, especially after complete removal of the dental pulp. The lack of a robust vasculature in implants limit integration of matrices with the host tissue and regeneration of soft tissue. We demonstrate the development of an acellular material that promotes tissue revascularization in vivo without added growth factors, in a preclinical canine model of pulp-like soft-tissue regeneration. Such acellular biomaterials would facilitate pulp revascularization approaches in large animal models, and translation into human clinical trials.
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Affiliation(s)
- Zain Siddiqui
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Biplab Sarkar
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Ka-Kyung Kim
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Nurten Kadincesme
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Reshma Paul
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Arjun Kumar
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Yoshifumi Kobayashi
- Department of Oral Biology, Department of Endodontics, Rutgers School of Dental Medicine, Newark, NJ, USA
| | - Abhishek Roy
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Marwa Choudhury
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Jian Yang
- Department of Biomedical Engineering, Huck Institutes of The Life Sciences, Materials Research Institute, Pennsylvania State University, University Park, PA, USA
| | - Emi Shimizu
- Department of Oral Biology, Department of Endodontics, Rutgers School of Dental Medicine, Newark, NJ, USA
| | - Vivek A Kumar
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA; Department of Oral Biology, Department of Endodontics, Rutgers School of Dental Medicine, Newark, NJ, USA; Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, USA; Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ, USA.
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50
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Siddiqui Z, Sarkar B, Kim KK, Kadincesme N, Paul R, Kumar A, Kobayashi Y, Roy A, Choudhury M, Yang J, Shimizu E, Kumar VA. Angiogenic hydrogels for dental pulp revascularization. Acta Biomater 2021; 126:109-118. [PMID: 33689817 PMCID: PMC8096688 DOI: 10.1016/j.actbio.2021.03.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/24/2021] [Accepted: 03/01/2021] [Indexed: 12/15/2022]
Abstract
Angiogenesis is critical for tissue healing and regeneration. Promoting angiogenesis in materials implanted within dental pulp after pulpectomy is a major clinical challenge in endodontics. We demonstrate the ability of acellular self-assembling peptide hydrogels to create extracellular matrix mimetic architectures that guide in vivo development of neovasculature and tissue deposition. The hydrogels possess facile injectability, as well as sequence-level functionalizability. We explore the therapeutic utility of an angiogenic hydrogel to regenerate vascularized pulp-like soft tissue in a large animal (canine) orthotopic model. The regenerated soft tissue recapitulates key features of native pulp, such as blood vessels, neural filaments, and an odontoblast-like layer next to dentinal tubules. Our study establishes angiogenic peptide hydrogels as potent scaffolds for promoting soft tissue regeneration in vivo. STATEMENT OF SIGNIFICANCE: A major challenge to endodontic tissue engineering is the lack of in situ angiogenesis within intracanal implants, especially after complete removal of the dental pulp. The lack of a robust vasculature in implants limit integration of matrices with the host tissue and regeneration of soft tissue. We demonstrate the development of an acellular material that promotes tissue revascularization in vivo without added growth factors, in a preclinical canine model of pulp-like soft-tissue regeneration. Such acellular biomaterials would facilitate pulp revascularization approaches in large animal models, and translation into human clinical trials.
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Affiliation(s)
- Zain Siddiqui
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Biplab Sarkar
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Ka-Kyung Kim
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Nurten Kadincesme
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Reshma Paul
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Arjun Kumar
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Yoshifumi Kobayashi
- Department of Oral Biology, Department of Endodontics, Rutgers School of Dental Medicine, Newark, NJ, USA
| | - Abhishek Roy
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Marwa Choudhury
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Jian Yang
- Department of Biomedical Engineering, Huck Institutes of The Life Sciences, Materials Research Institute, Pennsylvania State University, University Park, PA, USA
| | - Emi Shimizu
- Department of Oral Biology, Department of Endodontics, Rutgers School of Dental Medicine, Newark, NJ, USA
| | - Vivek A Kumar
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA; Department of Oral Biology, Department of Endodontics, Rutgers School of Dental Medicine, Newark, NJ, USA; Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, USA; Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ, USA.
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