1
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Chen T, Jiang Y, Huang JP, Wang J, Wang ZK, Ding PH. Essential elements for spatiotemporal delivery of growth factors within bio-scaffolds: A comprehensive strategy for enhanced tissue regeneration. J Control Release 2024; 368:97-114. [PMID: 38355052 DOI: 10.1016/j.jconrel.2024.02.006] [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: 11/05/2023] [Revised: 01/28/2024] [Accepted: 02/07/2024] [Indexed: 02/16/2024]
Abstract
The precise delivery of growth factors (GFs) in regenerative medicine is crucial for effective tissue regeneration and wound repair. However, challenges in achieving controlled release, such as limited half-life, potential overdosing risks, and delivery control complexities, currently hinder their clinical implementation. Despite the plethora of studies endeavoring to accomplish effective loading and gradual release of GFs through diverse delivery methods, the nuanced control of spatial and temporal delivery still needs to be elucidated. In response to this pressing clinical imperative, our review predominantly focuses on explaining the prevalent strategies employed for spatiotemporal delivery of GFs over the past five years. This review will systematically summarize critical aspects of spatiotemporal GFs delivery, including judicious bio-scaffold selection, innovative loading techniques, optimization of GFs activity retention, and stimulating responsive release mechanisms. It aims to identify the persisting challenges in spatiotemporal GFs delivery strategies and offer an insightful outlook on their future development. The ultimate objective is to provide an invaluable reference for advancing regenerative medicine and tissue engineering applications.
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Affiliation(s)
- Tan Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310000, China
| | - Yao Jiang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310000, China
| | - Jia-Ping Huang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310000, China
| | - Jing Wang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310000, China
| | - Zheng-Ke Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, China.
| | - Pei-Hui Ding
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310000, China.
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2
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Gupta S, Sharma A, Petrovski G, Verma RS. Vascular reconstruction of the decellularized biomatrix for whole-organ engineering-a critical perspective and future strategies. Front Bioeng Biotechnol 2023; 11:1221159. [PMID: 38026872 PMCID: PMC10680456 DOI: 10.3389/fbioe.2023.1221159] [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: 05/11/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Whole-organ re-engineering is the most challenging goal yet to be achieved in tissue engineering and regenerative medicine. One essential factor in any transplantable and functional tissue engineering is fabricating a perfusable vascular network with macro- and micro-sized blood vessels. Whole-organ development has become more practical with the use of the decellularized organ biomatrix (DOB) as it provides a native biochemical and structural framework for a particular organ. However, reconstructing vasculature and re-endothelialization in the DOB is a highly challenging task and has not been achieved for constructing a clinically transplantable vascularized organ with an efficient perfusable capability. Here, we critically and articulately emphasized factors that have been studied for the vascular reconstruction in the DOB. Furthermore, we highlighted the factors used for vasculature development studies in general and their application in whole-organ vascular reconstruction. We also analyzed in detail the strategies explored so far for vascular reconstruction and angiogenesis in the DOB for functional and perfusable vasculature development. Finally, we discussed some of the crucial factors that have been largely ignored in the vascular reconstruction of the DOB and the future directions that should be addressed systematically.
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Affiliation(s)
- Santosh Gupta
- Stem Cell and Molecular Biology, Laboratory, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences. Indian Institute of Technology Madras, Chennai, India
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Akriti Sharma
- Stem Cell and Molecular Biology, Laboratory, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences. Indian Institute of Technology Madras, Chennai, India
| | - Goran Petrovski
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Ophthalmology, Oslo University Hospital, Oslo, Norway
- Department of Ophthalmology, University of Split School of Medicine and University Hospital Centre, Split, Croatia
| | - Rama Shanker Verma
- Stem Cell and Molecular Biology, Laboratory, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences. Indian Institute of Technology Madras, Chennai, India
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3
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David M, Mohanty AR, Peppas NA. Two-phase matrices for the controlled release of therapeutic proteins. J Mater Chem B 2023; 11:8689-8696. [PMID: 37641956 DOI: 10.1039/d3tb01641b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Controlled and sustained delivery of therapeutic proteins is crucial for achieving desired effects in wound healing applications. Yet, this remains a challenge in growth factor delivery for bone tissue engineering. Current delivery systems can lead to negative side effects, such as ectopic bone growth and cancer, due to the over administration of growth inducing proteins. Here, we have developed a two-phase system for the controlled release of therapeutic proteins. The system consists of protein-loaded poly(methacrylic acid)-based nanoparticles conjugated to chitosan scaffolds. The effect of co-monomer hydrophilicity and crosslinking density on nanoparticle properties was evaluated. It was found that the release kinetics of model therapeutic proteins were dependent on nanoparticle hydrophilicity. The chitosan scaffold, chosen for its biocompatibility and osteogenic properties, provided additional barriers to diffusion and promoted nanoparticle retention, leading to more sustained protein delivery. Additionally, the ability of MC3T3-E1 pre-osteoblast cells to proliferate on scaffolds with and without conjugated nanoparticles was evaluated and all scaffolds were shown to promote cell growth. The results demonstrate that the two-phase scaffold system presents a superior strategy for the sustained and controlled release of therapeutic proteins for bone tissue engineering applications.
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Affiliation(s)
- Mariya David
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA.
- Institute of Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, Austin, TX, USA
| | - Avha R Mohanty
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA.
- Institute of Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, Austin, TX, USA
| | - Nicholas A Peppas
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA.
- Institute of Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, Austin, TX, USA
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA
- Department of Pediatrics and Department of Surgery and Perioperative Care, Dell Medical School, The University of Texas at Austin, Austin, TX, USA
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
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4
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Rana D, Padmanaban P, Becker M, Stein F, Leijten J, Koopman B, Rouwkema J. Spatial control of self-organizing vascular networks with programmable aptamer-tethered growth factor photopatterning. Mater Today Bio 2023; 19:100551. [PMID: 36747582 PMCID: PMC9898740 DOI: 10.1016/j.mtbio.2023.100551] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 01/10/2023] [Accepted: 01/12/2023] [Indexed: 01/22/2023] Open
Abstract
Given the dynamic nature of engineered vascular networks within biofabricated tissue analogues, it is instrumental to have control over the constantly evolving biochemical cues within synthetic matrices throughout tissue remodeling. Incorporation of pro-angiogenic vascular endothelial growth factor (VEGF165) specific aptamers into cell-instructive polymer networks is shown to be pivotal for spatiotemporally controlling the local bioactivity of VEGF that selectively elicit specific cell responses. To harness this effect and quantitatively unravel its spatial resolution, herein, bicomponent micropatterns consisting of VEGF165 specific aptamer-functionalized gelatin methacryloyl (GelMA) (aptamer regions) overlaid with pristine GelMA regions using visible-light photoinitiators (Ru/SPS) were fabricated via two-step photopatterning approach. For the 3D co-culture study, human umbilical vein-derived endothelial cells and mesenchymal stromal cells were used as model cell types. Bicomponent micropatterns with spatially defined spacings (300/500/800 μm) displayed high aptamer retention, aptamer-fluorescent complementary sequence (CSF) molecular recognition and VEGF sequestration localized within patterned aptamer regions. Stiffness gradient at the interface of aptamer and GelMA regions was observed with high modulus in aptamer region followed by low stiffness GelMA regions. Leveraging aptamer-tethered VEGF's dynamic affinity interactions with CS that upon hybridization facilitates triggered VEGF release, co-culture studies revealed unique characteristics of aptamer-tethered VEGF to form spatially defined luminal vascular networks covered with filopodia-like structures in vitro (spatial control) and highlights their ability to control network properties including orientation over time using CS as an external trigger (temporal control). Moreover, the comparison of single and double exposed regions within micropatterns revealed differences in cell behavior among both regions. Specifically, the localized aptamer-tethered VEGF within single exposed aptamer regions exhibited higher cellular alignment within the micropatterns till d5 of culture. Taken together, this study highlights the potential of photopatterned aptamer-tethered VEGF to spatiotemporally regulate vascular morphogenesis as a tool for controlling vascular remodeling in situ.
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Affiliation(s)
- Deepti Rana
- Department of Biomechanical Engineering, Technical Medical Centre, Faculty of Engineering Technology, University of Twente, 7522NB Enschede, the Netherlands
| | - Prasanna Padmanaban
- Department of Biomechanical Engineering, Technical Medical Centre, Faculty of Engineering Technology, University of Twente, 7522NB Enschede, the Netherlands
| | - Malin Becker
- Department of Developmental BioEngineering, Faculty of Science and Technology, Technical Medical Centre, University of Twente, 7522NB Enschede, the Netherlands
| | - Fabian Stein
- Department of Biomechanical Engineering, Technical Medical Centre, Faculty of Engineering Technology, University of Twente, 7522NB Enschede, the Netherlands
| | - Jeroen Leijten
- Department of Developmental BioEngineering, Faculty of Science and Technology, Technical Medical Centre, University of Twente, 7522NB Enschede, the Netherlands
| | - Bart Koopman
- Department of Biomechanical Engineering, Technical Medical Centre, Faculty of Engineering Technology, University of Twente, 7522NB Enschede, the Netherlands
| | - Jeroen Rouwkema
- Department of Biomechanical Engineering, Technical Medical Centre, Faculty of Engineering Technology, University of Twente, 7522NB Enschede, the Netherlands,Corresponding author.
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5
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Jain P, Rauer SB, Möller M, Singh S. Mimicking the Natural Basement Membrane for Advanced Tissue Engineering. Biomacromolecules 2022; 23:3081-3103. [PMID: 35839343 PMCID: PMC9364315 DOI: 10.1021/acs.biomac.2c00402] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
![]()
Advancements in the field of tissue engineering have
led to the
elucidation of physical and chemical characteristics of physiological
basement membranes (BM) as specialized forms of the extracellular
matrix. Efforts to recapitulate the intricate structure and biological
composition of the BM have encountered various advancements due to
its impact on cell fate, function, and regulation. More attention
has been paid to synthesizing biocompatible and biofunctional fibrillar
scaffolds that closely mimic the natural BM. Specific modifications
in biomimetic BM have paved the way for the development of in vitro models like alveolar-capillary barrier, airway
models, skin, blood-brain barrier, kidney barrier, and metastatic
models, which can be used for personalized drug screening, understanding
physiological and pathological pathways, and tissue implants. In this
Review, we focus on the structure, composition, and functions of in vivo BM and the ongoing efforts to mimic it synthetically.
Light has been shed on the advantages and limitations of various forms
of biomimetic BM scaffolds including porous polymeric membranes, hydrogels,
and electrospun membranes This Review further elaborates and justifies
the significance of BM mimics in tissue engineering, in particular
in the development of in vitro organ model systems.
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Affiliation(s)
- Puja Jain
- DWI-Leibniz-Institute for Interactive Materials e.V, Aachen 52074, Germany
| | | | - Martin Möller
- DWI-Leibniz-Institute for Interactive Materials e.V, Aachen 52074, Germany
| | - Smriti Singh
- Max-Planck-Institute for Medical Research, Heidelberg 69028, Germany
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6
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Jaiswal N, Halder S, Mahata N, Chanda N. Bi-Functional Gold Nanorod-Protein Conjugates with Biomimetic BSA@Folic Acid Corona for Improved Tumor Targeting and Intracellular Delivery of Therapeutic Proteins in Colon Cancer 3D Spheroids. ACS APPLIED BIO MATERIALS 2022; 5:1476-1488. [PMID: 35285613 DOI: 10.1021/acsabm.1c01216] [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] [Indexed: 01/05/2023]
Abstract
Gold nanorods (AuNRs) remain well-developed inorganic nanocarriers of small molecules for a plethora of biomedical and therapeutic applications. However, the delivery of therapeutic proteins using AuNRs with high protein loading capacity (LC), serum stability, excellent target specificity, and minimal off-target protein release is not known. Herein, we report two bi-functional AuNR-protein nanoconjugates, AuNR@EGFP-BSAFA and AuNR@RNaseA-BSAFA, supramolecularly coated with folic acid-modified BSA (BSAFA) acting as biomimetic protein corona to demonstrate targeted cytosolic delivery of enhanced green fluorescent protein (EGFP) and therapeutic ribonuclease A enzyme (RNase A) in their functional forms. AuNR@EGFP-BSAFA and AuNR@RNaseA-BSAFA exhibit high LCs of ∼42 and ∼54%, respectively, increased colloidal stability, and rapid protein release in the presence of biological thiols. As a nanocarrier, AuNR@EGFP-BSAFA and AuNR@RNaseA-BSAFA show resistance to corona formation in high-serum media even after 24 h, guaranteeing a greater circulation lifetime. Folate receptor-targeting BSAFA on the AuNR surface facilitates the receptor-mediated internalization, followed by the release of EGFP and RNase A in HT29 cells. The green fluorescence dispersed throughout the cell's cytoplasm indicates successful cytosolic delivery of EGFP by AuNR@EGFP-BSAFA. AuNR@RNaseA-BSAFA-mediated therapeutic RNase A delivery in multicellular 3D spheroids of HT29 cells exhibits a radical reduction in the cellular RNA fluorescence intensity to 38%, signifying RNA degradation and subsequent cell death. The versatile nanoformulation strategy in terms of the anisotropic particle morphology, protein type, and ability for targeted delivery in the functional form makes the present AuNR-protein nanoconjugates a promising platform for potential application in cancer management.
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Affiliation(s)
- Namita Jaiswal
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur 713209, India.,Material Processing and Microsystem Laboratory, CSIR─Central Mechanical Engineering Research Institute, Durgapur 713209, India
| | - Sudeshna Halder
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur 713209, India
| | - Nibedita Mahata
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur 713209, India
| | - Nripen Chanda
- Material Processing and Microsystem Laboratory, CSIR─Central Mechanical Engineering Research Institute, Durgapur 713209, India
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7
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Bupphathong S, Quiroz C, Huang W, Chung PF, Tao HY, Lin CH. Gelatin Methacrylate Hydrogel for Tissue Engineering Applications—A Review on Material Modifications. Pharmaceuticals (Basel) 2022; 15:ph15020171. [PMID: 35215284 PMCID: PMC8878046 DOI: 10.3390/ph15020171] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/21/2022] [Accepted: 01/22/2022] [Indexed: 11/26/2022] Open
Abstract
To recreate or substitute tissue in vivo is a complicated endeavor that requires biomaterials that can mimic the natural tissue environment. Gelatin methacrylate (GelMA) is created through covalent bonding of naturally derived polymer gelatin and methacrylic groups. Due to its biocompatibility, GelMA receives a lot of attention in the tissue engineering research field. Additionally, GelMA has versatile physical properties that allow a broad range of modifications to enhance the interaction between the material and the cells. In this review, we look at recent modifications of GelMA with naturally derived polymers, nanomaterials, and growth factors, focusing on recent developments for vascular tissue engineering and wound healing applications. Compared to polymers and nanoparticles, the modifications that embed growth factors show better mechanical properties and better cell migration, stimulating vascular development and a structure comparable to the natural-extracellular matrix.
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Affiliation(s)
- Sasinan Bupphathong
- Graduate Institute of Nanomedicine and Medical Engineering, Taipei Medical University, Taipei 110, Taiwan; (S.B.); (H.-Y.T.)
| | - Carlos Quiroz
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan;
| | - Wei Huang
- Department of Orthodontics, Rutgers School of Dental Medicine, Newark, NJ 07103, USA;
| | - Pei-Feng Chung
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan;
| | - Hsuan-Ya Tao
- Graduate Institute of Nanomedicine and Medical Engineering, Taipei Medical University, Taipei 110, Taiwan; (S.B.); (H.-Y.T.)
| | - Chih-Hsin Lin
- Graduate Institute of Nanomedicine and Medical Engineering, Taipei Medical University, Taipei 110, Taiwan; (S.B.); (H.-Y.T.)
- Correspondence:
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8
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The essential anti-angiogenic strategies in cartilage engineering and osteoarthritic cartilage repair. Cell Mol Life Sci 2022; 79:71. [PMID: 35029764 PMCID: PMC9805356 DOI: 10.1007/s00018-021-04105-0] [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: 09/14/2021] [Revised: 12/01/2021] [Accepted: 12/18/2021] [Indexed: 01/16/2023]
Abstract
In the cartilage matrix, complex interactions occur between angiogenic and anti-angiogenic components, growth factors, and environmental stressors to maintain a proper cartilage phenotype that allows for effective load bearing and force distribution. However, as seen in both degenerative disease and tissue engineering, cartilage can lose its vascular resistance. This vascularization then leads to matrix breakdown, chondrocyte apoptosis, and ossification. Research has shown that articular cartilage inflammation leads to compromised joint function and decreased clinical potential for regeneration. Unfortunately, few articles comprehensively summarize what we have learned from previous investigations. In this review, we summarize our current understanding of the factors that stabilize chondrocytes to prevent terminal differentiation and applications of these factors to rescue the cartilage phenotype during cartilage engineering and osteoarthritis treatment. Inhibiting vascularization will allow for enhanced phenotypic stability so that we are able to develop more stable implants for cartilage repair and regeneration.
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9
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Liu Z, Liu X, Bao L, Liu J, Zhu X, Mo X, Tang R. The evaluation of functional small intestinal submucosa for abdominal wall defect repair in a rat model: Potent effect of sequential release of VEGF and TGF-β1 on host integration. Biomaterials 2021; 276:120999. [PMID: 34273685 DOI: 10.1016/j.biomaterials.2021.120999] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 06/14/2021] [Accepted: 06/25/2021] [Indexed: 12/12/2022]
Abstract
Ineffective vessel penetration and extracellular matrix (ECM) remodeling are responsible for the failure of porcine small intestinal submucosa (SIS)-repaired abdominal wall defects. Combined growth factors could be used as directing signals in a nature-mimicking strategy to improve this repair through mesh functionalization. In this work, vascular endothelial growth factor (VEGF) and transforming growth factor β1 (TGF-β1) were incorporated into a silk fibroin membrane via coaxial aqueous electrospinning to exploit their benefits of biological interactions. The membrane was sandwiched into the SIS bilayer as a functional mesh to repair partial-thickness defects in a rat model. Membrane characterization demonstrated that the core-shell structure ensured the independent distribution and sequential release of two regulators and protection of their bioactivities, which were confirmed by cell viability and protein expression. The mesh was further assessed to facilitate vasculature formation and collagen secretion in vitro, and exhibited better host integration than VEGF- or TGF-β1-containing mesh and developed reinforced mechanical properties compared with the VEGF-containing mesh after 28 days in vivo. Determination of the underlying biological interactions revealed that rapid VEGF release promotes angiogenesis and collagen secretion but initially potentiates the inflammatory response. Sustained TGF-β1 release at relatively low concentrations promoted VEGF for vessel permeation and maturation and steadily induced ECM remodeling under milder foreign body reactions. The functionalization of SIS improves repair by sufficient integration with timely remodeling and helps elucidate the related regulatory interactions.
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Affiliation(s)
- Zhengni Liu
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, 150 Ji Mo Road, Shanghai, 200120, PR China
| | - Xuezhe Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Luhan Bao
- Group of Microbiological Engineering and Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Jiajie Liu
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, 150 Ji Mo Road, Shanghai, 200120, PR China
| | - Xiaoqiang Zhu
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, 150 Ji Mo Road, Shanghai, 200120, PR China
| | - Xiumei Mo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Rui Tang
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, 150 Ji Mo Road, Shanghai, 200120, PR China.
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10
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Salerno A, Netti PA. Review on Computer-Aided Design and Manufacturing of Drug Delivery Scaffolds for Cell Guidance and Tissue Regeneration. Front Bioeng Biotechnol 2021; 9:682133. [PMID: 34249885 PMCID: PMC8264554 DOI: 10.3389/fbioe.2021.682133] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/26/2021] [Indexed: 12/11/2022] Open
Abstract
In the last decade, additive manufacturing (AM) processes have updated the fields of biomaterials science and drug delivery as they promise to realize bioengineered multifunctional devices and implantable tissue engineering (TE) scaffolds virtually designed by using computer-aided design (CAD) models. However, the current technological gap between virtual scaffold design and practical AM processes makes it still challenging to realize scaffolds capable of encoding all structural and cell regulatory functions of the native extracellular matrix (ECM) of health and diseased tissues. Indeed, engineering porous scaffolds capable of sequestering and presenting even a complex array of biochemical and biophysical signals in a time- and space-regulated manner, require advanced automated platforms suitable of processing simultaneously biomaterials, cells, and biomolecules at nanometric-size scale. The aim of this work was to review the recent scientific literature about AM fabrication of drug delivery scaffolds for TE. This review focused on bioactive molecule loading into three-dimensional (3D) porous scaffolds, and their release effects on cell fate and tissue growth. We reviewed CAD-based strategies, such as bioprinting, to achieve passive and stimuli-responsive drug delivery scaffolds for TE and cancer precision medicine. Finally, we describe the authors' perspective regarding the next generation of CAD techniques and the advantages of AM, microfluidic, and soft lithography integration for enhancing 3D porous scaffold bioactivation toward functional bioengineered tissues and organs.
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Affiliation(s)
| | - Paolo A. Netti
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia, Naples, Italy
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
- Interdisciplinary Research Center on Biomaterials, University of Naples Federico II, Naples, Italy
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11
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He YJ, Santana MF, Staneviciute A, Pimentel MB, Yang F, Goes J, Kawaji K, Vaicik MK, Abdulhadi R, Hibino N, Papavasiliou G. Cell-Laden Gradient Hydrogel Scaffolds for Neovascularization of Engineered Tissues. Adv Healthc Mater 2021; 10:e2001706. [PMID: 33511790 PMCID: PMC8035317 DOI: 10.1002/adhm.202001706] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 12/16/2020] [Indexed: 12/26/2022]
Abstract
Gradients in mechanical properties, physical architecture and biochemical composition exist in a variety of complex tissues, yet 3D in vitro models that enable investigation of these cues on cellular processes, especially those contributing to vascularization of engineered tissues are limited. Here, a photopolymerization approach to create cell-laden hydrogel biomaterials with decoupled and combined gradients in modulus, immobilized cell adhesive peptide (RGD) concentration, and proteolytic degradation enabling spatial encapsulation of vascular spheroids is reported to elucidate their impact on vascular sprouting in 3D culture. Vascular spheroids encapsulated in these gradient scaffolds exhibit spatial variations in total sprout length. Scaffolds presenting an immobilized RGD gradient promote biased vascular sprouting toward increasing RGD concentration. Importantly, biased sprouting is found to be dependent on immobilized RGD gradient characteristics, including magnitude and slope, with increases in these factors contributing to significant enhancements in biased sprouting responses. Conversely, reduction in biased sprouting responses is observed in combined gradient scaffolds possessing opposing gradients in RGD and modulus. The presented work is the first to demonstrate the use of a cell-laden biomaterial platform to systematically investigate the role of multiple scaffold gradients as well as gradient slope, magnitude and orientation on vascular sprouting responses in 3D culture.
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Affiliation(s)
- Yusheng J He
- Department of Surgery, University of Chicago, 5841 S Maryland Ave, Suit E500, Chicago, IL, 60637, USA
| | - Martin F Santana
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Austeja Staneviciute
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Marja B Pimentel
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Feipeng Yang
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Jacob Goes
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Keigo Kawaji
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Marcella K Vaicik
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Rayan Abdulhadi
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Narutoshi Hibino
- Department of Surgery, University of Chicago, 5841 S Maryland Ave, Suit E500, Chicago, IL, 60637, USA
| | - Georgia Papavasiliou
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
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12
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Hinchliffe JD, Parassini Madappura A, Syed Mohamed SMD, Roy I. Biomedical Applications of Bacteria-Derived Polymers. Polymers (Basel) 2021; 13:1081. [PMID: 33805506 PMCID: PMC8036740 DOI: 10.3390/polym13071081] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 12/12/2022] Open
Abstract
Plastics have found widespread use in the fields of cosmetic, engineering, and medical sciences due to their wide-ranging mechanical and physical properties, as well as suitability in biomedical applications. However, in the light of the environmental cost of further upscaling current methods of synthesizing many plastics, work has recently focused on the manufacture of these polymers using biological methods (often bacterial fermentation), which brings with them the advantages of both low temperature synthesis and a reduced reliance on potentially toxic and non-eco-friendly compounds. This can be seen as a boon in the biomaterials industry, where there is a need for highly bespoke, biocompatible, processable polymers with unique biological properties, for the regeneration and replacement of a large number of tissue types, following disease. However, barriers still remain to the mass-production of some of these polymers, necessitating new research. This review attempts a critical analysis of the contemporary literature concerning the use of a number of bacteria-derived polymers in the context of biomedical applications, including the biosynthetic pathways and organisms involved, as well as the challenges surrounding their mass production. This review will also consider the unique properties of these bacteria-derived polymers, contributing to bioactivity, including antibacterial properties, oxygen permittivity, and properties pertaining to cell adhesion, proliferation, and differentiation. Finally, the review will select notable examples in literature to indicate future directions, should the aforementioned barriers be addressed, as well as improvements to current bacterial fermentation methods that could help to address these barriers.
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Affiliation(s)
| | | | | | - Ipsita Roy
- Department of Materials Science and Engineering, Faculty of Engineering, University of Sheffield, Sheffield S1 3JD, UK; (J.D.H.); (A.P.M.); (S.M.D.S.M.)
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13
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Cook A, Decuzzi P. Harnessing Endogenous Stimuli for Responsive Materials in Theranostics. ACS NANO 2021; 15:2068-2098. [PMID: 33555171 PMCID: PMC7905878 DOI: 10.1021/acsnano.0c09115] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 02/02/2021] [Indexed: 05/04/2023]
Abstract
Materials that respond to endogenous stimuli are being leveraged to enhance spatiotemporal control in a range of biomedical applications from drug delivery to diagnostic tools. The design of materials that undergo morphological or chemical changes in response to specific biological cues or pathologies will be an important area of research for improving efficacies of existing therapies and imaging agents, while also being promising for developing personalized theranostic systems. Internal stimuli-responsive systems can be engineered across length scales from nanometers to macroscopic and can respond to endogenous signals such as enzymes, pH, glucose, ATP, hypoxia, redox signals, and nucleic acids by incorporating synthetic bio-inspired moieties or natural building blocks. This Review will summarize response mechanisms and fabrication strategies used in internal stimuli-responsive materials with a focus on drug delivery and imaging for a broad range of pathologies, including cancer, diabetes, vascular disorders, inflammation, and microbial infections. We will also discuss observed challenges, future research directions, and clinical translation aspects of these responsive materials.
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Affiliation(s)
- Alexander
B. Cook
- Laboratory of Nanotechnology
for Precision Medicine, Istituto Italiano
di Tecnologia, Via Morego
30, 16163 Genova, Italy
| | - Paolo Decuzzi
- Laboratory of Nanotechnology
for Precision Medicine, Istituto Italiano
di Tecnologia, Via Morego
30, 16163 Genova, Italy
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14
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Cheah E, Wu Z, Thakur SS, O'Carroll SJ, Svirskis D. Externally triggered release of growth factors - A tissue regeneration approach. J Control Release 2021; 332:74-95. [PMID: 33600882 DOI: 10.1016/j.jconrel.2021.02.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 02/10/2021] [Accepted: 02/11/2021] [Indexed: 12/22/2022]
Abstract
Tissue regeneration aims to achieve functional restoration following injury by creating an environment to enable the body to self-repair. Strategies for regeneration rely on the introduction of biomaterial scaffolding, cells and bioactive molecules into the body, at or near the injury site. Of these bioactive molecules, growth factors (GFs) play a pivotal role in directing regenerative pathways for many cell populations. However, the therapeutic use of GFs has been limited by the complexity of biological injury and repair, and the properties of the GFs themselves, including their short half-life, poor tissue penetration, and off-target side effects. Externally triggered delivery systems have the potential to facilitate the delivery of GFs into the target tissues with considerations of the timing, sequence, amount, and location of GF presentation. This review briefly discusses the challenges facing the therapeutic use of GFs, then, we discuss approaches to externally trigger GF release from delivery systems categorised by stimulation type; ultrasound, temperature, light, magnetic fields and electric fields. Overall, while the use of GFs for tissue regeneration is still in its infancy, externally controlled GF delivery technologies have the potential to achieve robust and effective solutions to present GFs to injured tissues. Future technological developments must occur in conjunction with a comprehensive understanding of the biology at the injury site to ensure translation of promising technologies into real world benefit.
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Affiliation(s)
- Ernest Cheah
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Zimei Wu
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Sachin S Thakur
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Simon J O'Carroll
- Department of Anatomy and Medical Imaging, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Darren Svirskis
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand.
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15
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Scheiner KC, Maas-Bakker RF, van Steenbergen MJ, Schwendeman SP, Hennink WE, Kok RJ. Post-loading of proangiogenic growth factors in PLGA microspheres. Eur J Pharm Biopharm 2021; 158:1-10. [DOI: 10.1016/j.ejpb.2020.10.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 10/07/2020] [Accepted: 10/10/2020] [Indexed: 02/07/2023]
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16
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Zhu X, Tang R, Wang S, Chen X, Hu J, Lei C, Huang Y, Wang H, Nie Z, Yao S. Protein@Inorganic Nanodumpling System for High-Loading Protein Delivery with Activatable Fluorescence and Magnetic Resonance Bimodal Imaging Capabilities. ACS NANO 2020; 14:2172-2182. [PMID: 31990525 DOI: 10.1021/acsnano.9b09024] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Efficient protein delivery into the target cell is highly desirable for protein therapeutics. Current approaches for protein delivery commonly suffer from low-loading protein capacity, poor specificity for target cells, and invisible protein release. Herein, we report a protein@inorganic nanodumpling (ND) system as an intracellular protein delivery platform. Similar to a traditional Chinese food, the dumpling, ND consists of a protein complex "filling" formed by metal-ion-directed self-assembly of protein cargos fused to histidine-rich green fluorescent proteins (H39GFPs), which are further encapsulated by an external surface "wrapper" of manganese dioxide (MnO2) via in situ biomineralization. This ND structure allows for a high loading capacity (>63 wt %) for protein cargos with enhanced stability. NDs can be targeted and internalized into cancer cells specifically through folic acid receptors by surface-tailored folic acid. The protein cargo release is in a bistimuli-responsive manner, triggered by an either reductive or acidic intracellular microenvironment. Moreover, the MnO2 nanowrapper is an efficient fluorescence quencher for inner fused GFPs and also a "switch-on" magnetic resonance imaging (MRI) agent via triggered release of Mn2+ ions, which enables activatable fluorescence/MRI bimodal imaging of protein release. Finally, the ND is highly potent and specific to deliver functional protein ribonuclease A (RNase A) into cultured target cells and the tumor site in a xenografted mouse model, eliminating the tumor cells with high therapeutic efficacy. Our approach provides a promising alternative to advance protein-based cancer therapeutics.
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Affiliation(s)
- Xiaohua Zhu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology , Hunan University , Changsha 410082 , P. R. China
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha 410081 , P. R. China
| | - Rui Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology , Hunan University , Changsha 410082 , P. R. China
| | - Shigong Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology , Hunan University , Changsha 410082 , P. R. China
| | - Xiaoye Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology , Hunan University , Changsha 410082 , P. R. China
| | - Jiajun Hu
- College of Biology , Hunan University , Changsha 410082 , P. R. China
| | - Chunyang Lei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology , Hunan University , Changsha 410082 , P. R. China
| | - Yan Huang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology , Hunan University , Changsha 410082 , P. R. China
| | - Honghui Wang
- College of Biology , Hunan University , Changsha 410082 , P. R. China
| | - Zhou Nie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology , Hunan University , Changsha 410082 , P. R. China
| | - Shouzhuo Yao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology , Hunan University , Changsha 410082 , P. R. China
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17
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Scheiner KC, Coulter F, Maas-Bakker RF, Ghersi G, Nguyen TT, Steendam R, Duffy GP, Hennink WE, O’Cearbhaill ED, Kok RJ. Vascular Endothelial Growth Factor–Releasing Microspheres Based on Poly(ε-Caprolactone-PEG-ε-Caprolactone)-b-Poly(L-Lactide) Multiblock Copolymers Incorporated in a Three-Dimensional Printed Poly(Dimethylsiloxane) Cell Macroencapsulation Device. J Pharm Sci 2020; 109:863-870. [DOI: 10.1016/j.xphs.2019.10.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/11/2019] [Accepted: 10/15/2019] [Indexed: 12/12/2022]
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18
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Scheiner K, Maas-Bakker RF, Nguyen TT, Duarte AM, Hendriks G, Sequeira L, Duffy GP, Steendam R, Hennink WE, Kok RJ. Sustained Release of Vascular Endothelial Growth Factor from Poly(ε-caprolactone-PEG-ε-caprolactone)- b-Poly(l-lactide) Multiblock Copolymer Microspheres. ACS OMEGA 2019; 4:11481-11492. [PMID: 31460253 PMCID: PMC6681988 DOI: 10.1021/acsomega.9b01272] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 06/18/2019] [Indexed: 05/14/2023]
Abstract
Vascular endothelial growth factor (VEGF) is the major regulating factor for the formation of new blood vessels, also known as angiogenesis. VEGF is often incorporated in synthetic scaffolds to promote vascularization and to enhance the survival of cells that have been seeded in these devices. Such applications require sustained local delivery of VEGF of around 4 weeks for stable blood vessel formation. Most delivery systems for VEGF only provide short-term release for a couple of days, followed by a release phase with very low VEGF release. We now have developed VEGF-loaded polymeric microspheres that provide sustained release of bioactive VEGF for 4 weeks. Blends of two swellable poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone)-b-poly(l-lactide) ([PCL-PEG-PCL]-b-[PLLA])-based multiblock copolymers with different PEG content and PEG molecular weight were used to prepare the microspheres. Loading of the microspheres was established by a solvent evaporation-based membrane emulsification method. The resulting VEGF-loaded microspheres had average sizes of 40-50 μm and a narrow size distribution. Optimized formulations of a 50:50 blend of the two multiblock copolymers had an average VEGF loading of 0.79 ± 0.09%, representing a high average VEGF loading efficiency of 78 ± 16%. These microspheres released VEGF continuously over 4 weeks in phosphate-buffered saline pH 7.4 at 37 °C. This release profile was preserved after repeated and long-term storage at -20 °C for up to 9 months, thereby demonstrating excellent storage stability. VEGF release was governed by diffusion through the water-filled polymer matrix, depending on PEG molecular weight and PEG content of the polymers. The bioactivity of the released VEGF was retained within the experimental error in the 4-week release window, as demonstrated using a human umbilical vein endothelial cells proliferation assay. Thus, the microspheres prepared in this study are suitable for embedment in polymeric scaffolds with the aim of promoting their functional vascularization.
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Affiliation(s)
- Karina
C. Scheiner
- Department
of Pharmaceutics, Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Roel F. Maas-Bakker
- Department
of Pharmaceutics, Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Thanh T. Nguyen
- InnoCore
Pharmaceuticals B.V., L.J. Zielstraweg 1, 9713 GX Groningen, The Netherlands
| | - Ana M. Duarte
- InnoCore
Pharmaceuticals B.V., L.J. Zielstraweg 1, 9713 GX Groningen, The Netherlands
| | - Gert Hendriks
- InnoCore
Pharmaceuticals B.V., L.J. Zielstraweg 1, 9713 GX Groningen, The Netherlands
| | - Lídia Sequeira
- InnoCore
Pharmaceuticals B.V., L.J. Zielstraweg 1, 9713 GX Groningen, The Netherlands
| | - Garry P. Duffy
- Discipline
of Anatomy, School of Medicine, National
University of Ireland Galway, University Road, H91 TK33 Galway, Ireland
| | - Rob Steendam
- InnoCore
Pharmaceuticals B.V., L.J. Zielstraweg 1, 9713 GX Groningen, The Netherlands
| | - Wim E. Hennink
- Department
of Pharmaceutics, Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Robbert J. Kok
- Department
of Pharmaceutics, Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
- E-mail: . Phone: +31 620275995. Fax: +31 30 251789
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19
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Kwee BJ, Seo BR, Najibi AJ, Li AW, Shih TY, White D, Mooney DJ. Treating ischemia via recruitment of antigen-specific T cells. SCIENCE ADVANCES 2019; 5:eaav6313. [PMID: 31392268 PMCID: PMC6669016 DOI: 10.1126/sciadv.aav6313] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 06/25/2019] [Indexed: 05/18/2023]
Abstract
Ischemic diseases are a leading cause of mortality and can result in autoamputation of lower limbs. We explored the hypothesis that implantation of an antigen-releasing scaffold, in animals previously vaccinated with the same antigen, can concentrate TH2 T cells and enhance vascularization of ischemic tissue. This approach may be clinically relevant, as all persons receiving childhood vaccines recommended by the Centers for Disease Control and Prevention have vaccines that contain aluminum, a TH2 adjuvant. To test the hypothesis, mice with hindlimb ischemia, previously vaccinated with ovalbumin (OVA) and aluminum, received OVA-releasing scaffolds. Vaccinated mice receiving OVA-releasing scaffolds locally concentrated antigen-specific TH2 T cells in the surrounding ischemic tissue. This resulted in local angiogenesis, increased perfusion in ischemic limbs, and reduced necrosis and enhanced regenerating myofibers in the muscle. These findings support the premise that antigen depots may provide a treatment for ischemic diseases in patients previously vaccinated with aluminum-containing adjuvants.
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Affiliation(s)
- Brian J. Kwee
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Bo Ri Seo
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Alexander J. Najibi
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Aileen W. Li
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Ting-Yu Shih
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Des White
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - David J. Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
- Corresponding author.
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20
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Said SS, Yin H, Elfarnawany M, Nong Z, O'Neil C, Leong H, Lacefield JC, Mequanint K, Pickering JG. Fortifying Angiogenesis in Ischemic Muscle with FGF9-Loaded Electrospun Poly(Ester Amide) Fibers. Adv Healthc Mater 2019; 8:e1801294. [PMID: 30785239 DOI: 10.1002/adhm.201801294] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 02/03/2019] [Indexed: 12/24/2022]
Abstract
Delivery of angiogenic growth factors lessens ischemia in preclinical models but has demonstrated little benefit in patients with peripheral vascular disease. Augmenting the wrapping of nascent microvessels by mural cells constitutes an alternative strategy to regenerating a functional microvasculature, particularly if integrated with a sustained delivery platform. Herein, electrospun poly(ester amide) (PEA) nanofiber mats are fabricated for delivering a mural cell-targeting factor, fibroblast growth factor 9 (FGF9). Proof-of-principle is established by placing FGF9/FGF2-loaded PEA fiber mats on the chick chorioallantoic membrane and identifying enhanced angiogenesis by 3D power Doppler micro-ultrasound imaging. To assess the delivery system in ischemic muscle, FGF9-loaded PEA fiber mats are implanted onto the surface of the tibialis anterior muscle of mice with hindlimb ischemia. The system supplies FGF9 into the tibialis anterior muscle and yields a neo-microvascular network with enhanced mural cell coverage up to 28 days after injury. The regenerating muscle that receives FGF9 display near-normal sized myofibers and reduced interstitial fibrosis. Moreover, the mice demonstrate improved locomotion. These findings of locally released FGF9 from PEA nanofibers raise prospects for a microvascular remodeling approach to improve muscle health in peripheral vascular disease.
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Affiliation(s)
- Somiraa S. Said
- School of Biomedical EngineeringWestern University London Ontario N6A 5B9 Canada
| | - Hao Yin
- Robarts Research InstituteWestern University London Ontario N6A 5B7 Canada
| | - Mai Elfarnawany
- Department of OtolaryngologyWestern University London Ontario N6A 5W9 Canada
| | - Zengxuan Nong
- Robarts Research InstituteWestern University London Ontario N6A 5B7 Canada
| | - Caroline O'Neil
- Robarts Research InstituteWestern University London Ontario N6A 5B7 Canada
| | - Hon Leong
- Department of Surgery (Urology)Schulich School of Medicine and DentistryWestern University London Ontario N6A 5C1 Canada
| | - James C. Lacefield
- School of Biomedical EngineeringDepartment of Electrical and Computer EngineeringDepartment of Medical BiophysicsWestern University London Ontario N6A 5B9 Canada
| | - Kibret Mequanint
- School of Biomedical EngineeringDepartment of Chemical and Biochemical EngineeringWestern University London Ontario N6A 5B9 Canada
| | - J. Geoffrey Pickering
- Robarts Research InstituteDepartment of Medicine (Cardiology)Department of BiochemistryDepartment of Medical BiophysicsSchulich School of Medicine and DentistryWestern UniversityLondon Health Sciences Centre 339 Windermere Rd London Ontario N6A 5A5 Canada
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21
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Tsuruta T, Sakai K, Watanabe J, Katagiri W, Hibi H. Dental pulp-derived stem cell conditioned medium to regenerate peripheral nerves in a novel animal model of dysphagia. PLoS One 2018; 13:e0208938. [PMID: 30533035 PMCID: PMC6289419 DOI: 10.1371/journal.pone.0208938] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 11/26/2018] [Indexed: 12/27/2022] Open
Abstract
In nerve regeneration studies, various animal models are used to assess nerve regeneration. However, because of the difficulties in functional nerve assessment, a visceral nerve injury model is yet to be established. The superior laryngeal nerve (SLN) plays an essential role in swallowing. Although a treatment for SLN injury following trauma and surgery is desirable, no such treatment is reported in the literature. We recently reported that stem cells derived from human exfoliated deciduous teeth (SHED) have a therapeutic effect on various tissues via macrophage polarization. Here, we established a novel animal model of SLN injury. Our model was characterized as having weight loss and drinking behavior changes. In addition, the SLN lesion caused a delay in the onset of the swallowing reflex and gain of laryngeal residue in the pharynx. Systemic administration of SHED-conditioned media (SHED-CM) promoted functional recovery of the SLN and significantly promoted axonal regeneration by converting of macrophages to the anti-inflammatory M2 phenotype. In addition, SHED-CM enhanced new blood vessel formation at the injury site. Our data suggest that the administration of SHED-CM may provide therapeutic benefits for SLN injury.
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Affiliation(s)
- Takeshi Tsuruta
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kiyoshi Sakai
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
- * E-mail:
| | - Junna Watanabe
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Wataru Katagiri
- Division of Reconstructive Surgery for Oral and Maxillofacial Region, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Hideharu Hibi
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
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22
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Composite Hydrogels with the Simultaneous Release of VEGF and MCP-1 for Enhancing Angiogenesis for Bone Tissue Engineering Applications. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8122438] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Rapid new microvascular network induction was critical for bone regeneration, which required the spatiotemporal delivery of growth factors and transplantation of endothelial cells. In this study, the linear poly(d,l-lactic-co-glycolic acid)-b-methoxy poly(ethylene glycol) (PLGA-mPEG) block copolymer microspheres were prepared for simultaneously delivering vascular endothelial growth factor (VEGF) and monocyte chemotactic protein-1 (MCP-1). Then, vascular endothelial cells (VECs) with growth factor loaded microspheres were composited into a star-shaped PLGA-mPEG block copolymer solution. After this, composite hydrogel (microspheres ratio: 5 wt%) was formed by increasing the temperature to 37 °C. The release profiles of VEGF and MCP-1 from composite hydrogels in 30 days were investigated to confirm the different simultaneous delivery systems. The VECs exhibited a good proliferation in the composite hydrogels, which proved that the composite hydrogels had a good cytocompatibility. Furthermore, in vivo animal experiments showed that the vessel density and the mean vessel diameters increased over weeks after the composite hydrogels were implanted into the necrosis site of the rabbit femoral head. The above results suggested that the VECs-laden hydrogel composited with the dual-growth factor simultaneous release system has the potential to enhance angiogenesis in bone tissue engineering.
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23
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He YJ, Young DA, Mededovic M, Li K, Li C, Tichauer K, Venerus D, Papavasiliou G. Protease-Sensitive Hydrogel Biomaterials with Tunable Modulus and Adhesion Ligand Gradients for 3D Vascular Sprouting. Biomacromolecules 2018; 19:4168-4181. [PMID: 30253093 DOI: 10.1021/acs.biomac.8b00519] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Biomaterial strategies focused on designing scaffolds with physiologically relevant gradients provide a promising means for elucidating 3D vascular cell responses to spatial and temporal variations in matrix properties. In this study, we present a photopolymerization approach, ascending photofrontal free-radical polymerization, to generate proteolytically degradable hydrogel scaffolds of poly(ethylene) glycol with tunable continuous gradients of (1) elastic modulus (slope of 80 Pa/mm) and uniform immobilized RGD concentration (2.06 ± 0.12 mM) and (2) immobilized concentration of the RGD cell-adhesion peptide ligand (slope of 58.8 μM/mm) and uniform elastic modulus (597 ± 22 Pa). Using a coculture model of vascular sprouting, scaffolds embedded with gradients of elastic modulus induced increases in the number of vascular sprouts in the opposing gradient direction, whereas RGD gradient scaffolds promoted increases in the length of vascular sprouts toward the gradient. Furthermore, increases in vascular sprout length were found to be prominent in regions containing higher immobilized RGD concentration.
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Affiliation(s)
- Yusheng J He
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - Daniel A Young
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - Merjem Mededovic
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - Kevin Li
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - Chengyue Li
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - Kenneth Tichauer
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - David Venerus
- Chemical and Biological Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - Georgia Papavasiliou
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
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24
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Rust R, Gantner C, Schwab ME. Pro- and antiangiogenic therapies: current status and clinical implications. FASEB J 2018; 33:34-48. [PMID: 30085886 DOI: 10.1096/fj.201800640rr] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Blood vessels nurture every part of the human body. Consequently, abnormalities in the vasculature are closely associated with a variety of diseases, including cerebral stroke, heart disease, retinopathy, and cancer. Pro- or antiangiogenic therapies can influence these diseases by regulating the growth of new blood vessels from a pre-existing vascular network or dampening excessive blood growth. However, clinical translation of these approaches is slow and challenging. In this review, we discuss recent preclinical approaches to regulate angiogenesis and their potential and risks in a clinical setting.-Rust, R., Gantner, C., Schwab, M. E. Pro- and antiangiogenic therapies: current status and clinical implications.
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Affiliation(s)
- Ruslan Rust
- Brain Research Institute, University of Zurich, Zurich, Switzerland.,Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland; and
| | - Christina Gantner
- Department of Biology, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland
| | - Martin E Schwab
- Brain Research Institute, University of Zurich, Zurich, Switzerland.,Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland; and
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25
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Kottamasu P, Herman I. Engineering a microcirculation for perfusion control of ex vivo-assembled organ systems: Challenges and opportunities. J Tissue Eng 2018; 9:2041731418772949. [PMID: 29780570 PMCID: PMC5952288 DOI: 10.1177/2041731418772949] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 04/04/2018] [Indexed: 01/03/2023] Open
Abstract
Donor organ shortage remains a clear problem for many end-stage organ patients around the world. The number of available donor organs pales in comparison with the number of patients in need of these organs. The field of tissue engineering proposes a plausible solution. Using stem cells, a patient's autologous cells, or allografted cells to seed-engineered scaffolds, tissue-engineered constructs can effectively supplement the donor pool and bypass other problems that arise when using donor organs, such as who receives the organ first and whether donor organ rejection may occur. However, current research methods and technologies have been unable to successfully engineer and vascularize large volume tissue constructs. This review examines the current perfusion methods for ex vivo organ systems, defines the different types of vascularization in organs, explores various strategies to vascularize ex vivo organ systems, and discusses challenges and opportunities for the field of tissue engineering.
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Affiliation(s)
| | - Ira Herman
- Tufts University School of Medicine, Boston, MA, USA
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26
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Osteochondral Angiogenesis and Promoted Vascularization: New Therapeutic Target. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1059:315-330. [DOI: 10.1007/978-3-319-76735-2_14] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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27
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Wu RX, Yin Y, He XT, Li X, Chen FM. Engineering a Cell Home for Stem Cell Homing and Accommodation. ACTA ACUST UNITED AC 2017; 1:e1700004. [PMID: 32646164 DOI: 10.1002/adbi.201700004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 02/27/2017] [Indexed: 12/14/2022]
Abstract
Distilling complexity to advance regenerative medicine from laboratory animals to humans, in situ regeneration will continue to evolve using biomaterial strategies to drive endogenous cells within the human body for therapeutic purposes; this approach avoids the need for delivering ex vivo-expanded cellular materials. Ensuring the recruitment of a significant number of reparative cells from an endogenous source to the site of interest is the first step toward achieving success. Subsequently, making the "cell home" cell-friendly by recapitulating the natural extracellular matrix (ECM) in terms of its chemistry, structure, dynamics, and function, and targeting specific aspects of the native stem cell niche (e.g., cell-ECM and cell-cell interactions) to program and steer the fates of those recruited stem cells play equally crucial roles in yielding a therapeutically regenerative solution. This review addresses the key aspects of material-guided cell homing and the engineering of novel biomaterials with desirable ECM composition, surface topography, biochemistry, and mechanical properties that can present both biochemical and physical cues required for in situ tissue regeneration. This growing body of knowledge will likely become a design basis for the development of regenerative biomaterials for, but not limited to, future in situ tissue engineering and regeneration.
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Affiliation(s)
- Rui-Xin Wu
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Yuan Yin
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Xiao-Tao He
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Xuan Li
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Fa-Ming Chen
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
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28
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Grau-Monge C, Delcroix GJR, Bonnin-Marquez A, Valdes M, Awadallah ELM, Quevedo DF, Armour MR, Montero RB, Schiller PC, Andreopoulos FM, D'Ippolito G. Marrow-isolated adult multilineage inducible cells embedded within a biologically-inspired construct promote recovery in a mouse model of peripheral vascular disease. ACTA ACUST UNITED AC 2017; 12:015024. [PMID: 28211362 DOI: 10.1088/1748-605x/aa5a74] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Peripheral vascular disease is one of the major vascular complications in individuals suffering from diabetes and in the elderly that is associated with significant burden in terms of morbidity and mortality. Stem cell therapy is being tested as an attractive alternative to traditional surgery to prevent and treat this disorder. The goal of this study was to enhance the protective and reparative potential of marrow-isolated adult multilineage inducible (MIAMI) cells by incorporating them within a bio-inspired construct (BIC) made of two layers of gelatin B electrospun nanofibers. We hypothesized that the BIC would enhance MIAMI cell survival and engraftment, ultimately leading to a better functional recovery of the injured limb in our mouse model of critical limb ischemia compared to MIAMI cells used alone. Our study demonstrated that MIAMI cell-seeded BIC resulted in a wide range of positive outcomes with an almost full recovery of blood flow in the injured limb, thereby limiting the extent of ischemia and necrosis. Functional recovery was also the greatest when MIAMI cells were combined with BICs, compared to MIAMI cells alone or BICs in the absence of cells. Histology was performed 28 days after grafting the animals to explore the mechanisms at the source of these positive outcomes. We observed that our critical limb ischemia model induces an extensive loss of muscular fibers that are replaced by intermuscular adipose tissue (IMAT), together with a highly disorganized vascular structure. The use of MIAMI cells-seeded BIC prevented IMAT infiltration with some clear evidence of muscular fibers regeneration.
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Affiliation(s)
- Cristina Grau-Monge
- Department of Orthopaedics, University of Miami Miller School of Medicine, FL, United States of America. Geriatric Research, Education, and Clinical Center and Research Service, Bruce W. Carter VAMC, Miami, FL, United States of America
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29
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Murschel F, Fortier C, Jolicoeur M, Hodges RS, De Crescenzo G. Two Complementary Approaches for the Controlled Release of Biomolecules Immobilized via Coiled-Coil Interactions: Peptide Core Mutations and Multivalent Presentation. Biomacromolecules 2017; 18:965-975. [DOI: 10.1021/acs.biomac.6b01830] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Frederic Murschel
- Department
of Chemical Engineering, Groupe de Recherche en Sciences et Technologies
Biomédicales (GRSTB), Bio-P2 Research Unit, École Polytechnique de Montréal, P.O. Box 6079, succursale Centre-Ville, Montréal, Quebec H3C 3A7, Canada
| | - Charles Fortier
- Department
of Chemical Engineering, Groupe de Recherche en Sciences et Technologies
Biomédicales (GRSTB), Bio-P2 Research Unit, École Polytechnique de Montréal, P.O. Box 6079, succursale Centre-Ville, Montréal, Quebec H3C 3A7, Canada
| | - Mario Jolicoeur
- Department
of Chemical Engineering, Groupe de Recherche en Sciences et Technologies
Biomédicales (GRSTB), Bio-P2 Research Unit, École Polytechnique de Montréal, P.O. Box 6079, succursale Centre-Ville, Montréal, Quebec H3C 3A7, Canada
| | - Robert S. Hodges
- Department
of Biochemistry and Molecular Genetics, University of Colorado, School of Medicine, Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - Gregory De Crescenzo
- Department
of Chemical Engineering, Groupe de Recherche en Sciences et Technologies
Biomédicales (GRSTB), Bio-P2 Research Unit, École Polytechnique de Montréal, P.O. Box 6079, succursale Centre-Ville, Montréal, Quebec H3C 3A7, Canada
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30
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Ng J, Spiller K, Bernhard J, Vunjak-Novakovic G. Biomimetic Approaches for Bone Tissue Engineering. TISSUE ENGINEERING PART B-REVIEWS 2017; 23:480-493. [PMID: 27912680 DOI: 10.1089/ten.teb.2016.0289] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Although autologous bone grafts are considered a gold standard for the treatment of bone defects, they are limited by donor site morbidities and geometric requirements. We propose that tissue engineering technology can overcome such limitations by recreating fully viable and biological bone grafts. Specifically, we will discuss the use of bone scaffolds and autologous cells with bioreactor culture systems as a tissue engineering paradigm to grow bone in vitro. We will also discuss emergent vascularization strategies to promote graft survival in vivo, as well as the role of inflammation during bone repair. Finally, we will highlight some recent advances and discuss new solutions to bone repair inspired by endochondral ossification.
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Affiliation(s)
- Johnathan Ng
- 1 Department of Biomedical Engineering, Columbia University , New York, New York
| | - Kara Spiller
- 2 School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania
| | - Jonathan Bernhard
- 1 Department of Biomedical Engineering, Columbia University , New York, New York
| | - Gordana Vunjak-Novakovic
- 1 Department of Biomedical Engineering, Columbia University , New York, New York.,3 Department of Medicine, Columbia University , New York, New York
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31
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Kesireddy V, Kasper FK. Approaches for building bioactive elements into synthetic scaffolds for bone tissue engineering. J Mater Chem B 2016; 4:6773-6786. [PMID: 28133536 PMCID: PMC5267491 DOI: 10.1039/c6tb00783j] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Bone tissue engineering (BTE) is emerging as a possible solution for regeneration of bone in a number of applications. For effective utilization, BTE scaffolds often need modifications to impart biological cues that drive diverse cellular functions such as adhesion, migration, survival, proliferation, differentiation, and biomineralization. This review provides an outline of various approaches for building bioactive elements into synthetic scaffolds for BTE and classifies them broadly under two distinct schemes; namely, the top-down approach and the bottom-up approach. Synthetic and natural routes for top-down approaches to production of bioactive constructs for BTE, such as generation of scaffold-extracellular matrix (ECM) hybrid constructs or decellularized and demineralized scaffolds, are provided. Similarly, traditional scaffold-based bottom-up approaches, including growth factor immobilization or peptide-tethered scaffolds, are provided. Finally, a brief overview of emerging bottom-up approaches for generating biologically active constructs for BTE is given. A discussion of the key areas for further investigation, challenges, and opportunities is also presented.
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Affiliation(s)
- Venu Kesireddy
- Department of Orthodontics, The University of Texas Health Science Center at Houston, School of Dentistry
| | - F. Kurtis Kasper
- Department of Orthodontics, The University of Texas Health Science Center at Houston, School of Dentistry
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32
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Carlier A, Skvortsov GA, Hafezi F, Ferraris E, Patterson J, Koç B, Van Oosterwyck H. Computational model-informed design and bioprinting of cell-patterned constructs for bone tissue engineering. Biofabrication 2016; 8:025009. [DOI: 10.1088/1758-5090/8/2/025009] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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33
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Said SS, O'Neil C, Yin H, Nong Z, Pickering JG, Mequanint K. Concurrent and Sustained Delivery of FGF2 and FGF9 from Electrospun Poly(ester amide) Fibrous Mats for Therapeutic Angiogenesis. Tissue Eng Part A 2016; 22:584-96. [PMID: 26955972 DOI: 10.1089/ten.tea.2015.0493] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Therapeutic angiogenesis has emerged as a potential strategy to treat ischemic vascular diseases. However, systemic or local administration of growth factors is usually inefficient for maintaining the effective concentration at the site of interest due to their rapid clearance or degradation. In this study, we report a differential and sustained release of an angiogenic factor, fibroblast growth factor-2 (FGF2), and an arteriogenic factor, fibroblast growth factor-9 (FGF9), from α-amino acid-derived biodegradable poly(ester amide) (PEA) fibers toward targeting neovessel formation and maturation. FGF2 and FGF9 were dual loaded using a mixed blend and emulsion electrospinning technique and exhibited differential and sustained release from PEA fibers over 28 days with preserved bioactivity. In vitro angiogenesis assays showed enhanced endothelial cell (EC) tube formation and directed migration of smooth muscle cells (SMCs) to platelet-derived growth factor (PDGF)-BB and stabilized EC/SMC tube formation. FGF2/FGF9-loaded PEA fibers did not induce inflammatory responses in vitro using human monocytes or in vivo after their subcutaneous implantation into mice. Histological examination showed that FGF2/FGF9-loaded fibers induced cell niche recruitment around the site of implantation. Furthermore, controlled in vivo delivery of FGF9 to mouse tibialis anterior (TA) muscle resulted in a dose-dependent expansion of mesenchymal progenitor-like cell layers and extracellular matrix deposition. Our data suggest that the release of FGF2 and FGF9 from PEA fibers offers an efficient differential and sustained growth factor delivery strategy with relevance to therapeutic angiogenesis.
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Affiliation(s)
- Somiraa S Said
- 1 Biomedical Engineering Graduate Program, The University of Western Ontario , London, Canada
| | - Caroline O'Neil
- 2 Robarts Research Institute, Schulich School of Medicine and Dentistry, The University of Western Ontario , London, Canada
| | - Hao Yin
- 2 Robarts Research Institute, Schulich School of Medicine and Dentistry, The University of Western Ontario , London, Canada
| | - Zengxuan Nong
- 2 Robarts Research Institute, Schulich School of Medicine and Dentistry, The University of Western Ontario , London, Canada
| | - J Geoffrey Pickering
- 2 Robarts Research Institute, Schulich School of Medicine and Dentistry, The University of Western Ontario , London, Canada .,3 Department of Medicine (Cardiology), The University of Western Ontario , London, Canada .,4 Department of Biochemistry, The University of Western Ontario , London, Canada .,5 Department of Medical Biophysics, The University of Western Ontario , London, Canada
| | - Kibret Mequanint
- 1 Biomedical Engineering Graduate Program, The University of Western Ontario , London, Canada .,6 Department of Chemical and Biochemical Engineering, Faculty of Engineering, The University of Western Ontario , London, Canada
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34
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Lv Y, Lin C. High mobility group box 1-immobilized nanofibrous scaffold enhances vascularization, osteogenesis and stem cell recruitment. J Mater Chem B 2016; 4:5002-5014. [DOI: 10.1039/c6tb00826g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An engineered, multi-functional HMGB1-immobilized scaffold is developed. HMGB1 is immobilized on the surface of electrospinning poly-l-lactide (PLLA)/polycaprolactone (PCL) nanofibers via heparin, which is used as a “trigger” signal to make the bone scaffold capable of enhancing vascularization, inducing osteogenesis and recruiting stem cells.
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Affiliation(s)
- Yonggang Lv
- Key Laboratory of Biorheological Science and Technology (Chongqing University)
- Ministry of Education
- Bioengineering College
- Chongqing University
- Chongqing 400044
| | - Chongwen Lin
- Key Laboratory of Biorheological Science and Technology (Chongqing University)
- Ministry of Education
- Bioengineering College
- Chongqing University
- Chongqing 400044
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35
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Li Y, Maciel D, Rodrigues J, Shi X, Tomás H. Biodegradable Polymer Nanogels for Drug/Nucleic Acid Delivery. Chem Rev 2015; 115:8564-608. [PMID: 26259712 DOI: 10.1021/cr500131f] [Citation(s) in RCA: 324] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yulin Li
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
- The State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Centre for Biomedical Materials of Ministry of Education, East China University of Science and Technology , Shanghai 200237, People's Republic of China
| | - Dina Maciel
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
| | - João Rodrigues
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
| | - Xiangyang Shi
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University , Shanghai 201620, People's Republic of China
| | - Helena Tomás
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
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36
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Gupta MK, Meng F, Johnson BN, Kong YL, Tian L, Yeh YW, Masters N, Singamaneni S, McAlpine MC. 3D Printed Programmable Release Capsules. NANO LETTERS 2015; 15:5321-9. [PMID: 26042472 PMCID: PMC4536147 DOI: 10.1021/acs.nanolett.5b01688] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The development of methods for achieving precise spatiotemporal control over chemical and biomolecular gradients could enable significant advances in areas such as synthetic tissue engineering, biotic-abiotic interfaces, and bionanotechnology. Living organisms guide tissue development through highly orchestrated gradients of biomolecules that direct cell growth, migration, and differentiation. While numerous methods have been developed to manipulate and implement biomolecular gradients, integrating gradients into multiplexed, three-dimensional (3D) matrices remains a critical challenge. Here we present a method to 3D print stimuli-responsive core/shell capsules for programmable release of multiplexed gradients within hydrogel matrices. These capsules are composed of an aqueous core, which can be formulated to maintain the activity of payload biomolecules, and a poly(lactic-co-glycolic) acid (PLGA, an FDA approved polymer) shell. Importantly, the shell can be loaded with plasmonic gold nanorods (AuNRs), which permits selective rupturing of the capsule when irradiated with a laser wavelength specifically determined by the lengths of the nanorods. This precise control over space, time, and selectivity allows for the ability to pattern 2D and 3D multiplexed arrays of enzyme-loaded capsules along with tunable laser-triggered rupture and release of active enzymes into a hydrogel ambient. The advantages of this 3D printing-based method include (1) highly monodisperse capsules, (2) efficient encapsulation of biomolecular payloads, (3) precise spatial patterning of capsule arrays, (4) "on the fly" programmable reconfiguration of gradients, and (5) versatility for incorporation in hierarchical architectures. Indeed, 3D printing of programmable release capsules may represent a powerful new tool to enable spatiotemporal control over biomolecular gradients.
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Affiliation(s)
- Maneesh K. Gupta
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Fanben Meng
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Blake N. Johnson
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Yong Lin Kong
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Limei Tian
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Yao-Wen Yeh
- Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Nina Masters
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Srikanth Singamaneni
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Michael C. McAlpine
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
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37
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Matsiko A, Levingstone TJ, Gleeson JP, O'Brien FJ. Incorporation of TGF-beta 3 within collagen-hyaluronic acid scaffolds improves their chondrogenic potential. Adv Healthc Mater 2015; 4:1175-9. [PMID: 25800862 DOI: 10.1002/adhm.201500053] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 02/16/2015] [Indexed: 11/09/2022]
Abstract
Incorporation of therapeutics in the form of growth factors within biomaterials can enhance their biofunctionality. Two methods of incorporating transforming growth factor-beta 3 within collagen-hyaluronic acid scaffolds are described, markedly improving mesenchymal stem cell-mediated chondrogenic differentiation and matrix production. Such scaffolds offer control over the release of therapeutics, demonstrating their potential for repair of complex chondral defects requiring additional stimuli.
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Affiliation(s)
- Amos Matsiko
- Tissue Engineering Research Group; Department of Anatomy; Royal College of Surgeons in Ireland; 123 St. Stephen's Green Dublin 2 Ireland
- Trinity Centre for Bioengineering; Trinity College Dublin; Dublin 2 Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre; RCSI and TCD; Dublin 2 Ireland
| | - Tanya J. Levingstone
- Tissue Engineering Research Group; Department of Anatomy; Royal College of Surgeons in Ireland; 123 St. Stephen's Green Dublin 2 Ireland
- Trinity Centre for Bioengineering; Trinity College Dublin; Dublin 2 Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre; RCSI and TCD; Dublin 2 Ireland
| | - John P. Gleeson
- Tissue Engineering Research Group; Department of Anatomy; Royal College of Surgeons in Ireland; 123 St. Stephen's Green Dublin 2 Ireland
- Trinity Centre for Bioengineering; Trinity College Dublin; Dublin 2 Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre; RCSI and TCD; Dublin 2 Ireland
- SurgaColl Technologies Ltd; Rubicon Centre; Rossa Avenue Cork Ireland
| | - Fergal J. O'Brien
- Tissue Engineering Research Group; Department of Anatomy; Royal College of Surgeons in Ireland; 123 St. Stephen's Green Dublin 2 Ireland
- Trinity Centre for Bioengineering; Trinity College Dublin; Dublin 2 Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre; RCSI and TCD; Dublin 2 Ireland
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38
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Samorezov JE, Alsberg E. Spatial regulation of controlled bioactive factor delivery for bone tissue engineering. Adv Drug Deliv Rev 2015; 84:45-67. [PMID: 25445719 PMCID: PMC4428953 DOI: 10.1016/j.addr.2014.11.018] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 11/21/2014] [Accepted: 11/24/2014] [Indexed: 12/29/2022]
Abstract
Limitations of current treatment options for critical size bone defects create a significant clinical need for tissue engineered bone strategies. This review describes how control over the spatiotemporal delivery of growth factors, nucleic acids, and drugs and small molecules may aid in recapitulating signals present in bone development and healing, regenerating interfaces of bone with other connective tissues, and enhancing vascularization of tissue engineered bone. State-of-the-art technologies used to create spatially controlled patterns of bioactive factors on the surfaces of materials, to build up 3D materials with patterns of signal presentation within their bulk, and to pattern bioactive factor delivery after scaffold fabrication are presented, highlighting their applications in bone tissue engineering. As these techniques improve in areas such as spatial resolution and speed of patterning, they will continue to grow in value as model systems for understanding cell responses to spatially regulated bioactive factor signal presentation in vitro, and as strategies to investigate the capacity of the defined spatial arrangement of these signals to drive bone regeneration in vivo.
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Affiliation(s)
- Julia E Samorezov
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Eben Alsberg
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA; Department of Orthopaedic Surgery, Case Western Reserve University, Cleveland, OH, USA; National Center for Regenerative Medicine, Division of General Medical Sciences, Case Western Reserve University, Cleveland, OH, USA.
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39
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Jensen BEB, Edlund K, Zelikin AN. Micro-structured, spontaneously eroding hydrogels accelerate endothelialization through presentation of conjugated growth factors. Biomaterials 2015; 49:113-24. [PMID: 25725560 DOI: 10.1016/j.biomaterials.2015.01.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 01/05/2015] [Accepted: 01/20/2015] [Indexed: 11/30/2022]
Abstract
Growth factors represent highly potent and highly efficacious means of communication to cells. At the same time, these proteins are fragile and relatively small sized--rendering their immobilization and controlled release from biomaterials challenging. In this work, we establish a method to incorporate growth factors into the physical hydrogels based on poly(vinyl alcohol), PVA. The latter have a long and successful history of biomedical applications and approval for diverse use in human patients, but are also characterized with scant opportunities for bioconjugation and functionalization. Herein, we develop the conjugation of growth factors to the micro-structured, spontaneously eroding physical hydrogels based on PVA. Protein conjugation was elaborated using model substrates, albumin and lysozyme, which aided to reveal specificity of chemical reactions and benign, non-harmful nature of the established protocols. Surface-adhered format of hydrogel analyses allowed to quantify bioconjugation reactions and enzymatic activity of the immobilized proteins and to visualize the hydrogels with immobilized cargo. In cell culture, immobilized growth factors were effective in communicating to adhering cells and specifically enhanced proliferation rates of the cells containing the corresponding receptors. At the same time, proliferation of the cells devoid of these receptors was un-altered.
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Affiliation(s)
| | - Katrine Edlund
- Department of Chemistry, Aarhus University, Aarhus, Denmark
| | - Alexander N Zelikin
- Department of Chemistry, Aarhus University, Aarhus, Denmark; iNANO Interdisciplinary Nanoscience Center, Aarhus University, Aarhus, Denmark.
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40
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Izadifar M, Haddadi A, Chen X, Kelly ME. Rate-programming of nano-particulate delivery systems for smart bioactive scaffolds in tissue engineering. NANOTECHNOLOGY 2015; 26:012001. [PMID: 25474543 DOI: 10.1088/0957-4484/26/1/012001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Development of smart bioactive scaffolds is of importance in tissue engineering, where cell proliferation, differentiation and migration within scaffolds can be regulated by the interactions between cells and scaffold through the use of growth factors (GFs) and extra cellular matrix peptides. One challenge in this area is to spatiotemporally control the dose, sequence and profile of release of GFs so as to regulate cellular fates during tissue regeneration. This challenge would be addressed by rate-programming of nano-particulate delivery systems, where the release of GFs via polymeric nanoparticles is controlled by means of the methods of, such as externally-controlled and physicochemically/architecturally-modulated so as to mimic the profile of physiological GFs. Identifying and understanding such factors as the desired release profiles, mechanisms of release, physicochemical characteristics of polymeric nanoparticles, and externally-triggering stimuli are essential for designing and optimizing such delivery systems. This review surveys the recent studies on the desired release profiles of GFs in various tissue engineering applications, elucidates the major release mechanisms and critical factors affecting release profiles, and overviews the role played by the mathematical models for optimizing nano-particulate delivery systems. Potentials of stimuli responsive nanoparticles for spatiotemporal control of GF release are also presented, along with the recent advances in strategies for spatiotemporal control of GF delivery within tissue engineered scaffolds. The recommendation for the future studies to overcome challenges for developing sophisticated particulate delivery systems in tissue engineering is discussed prior to the presentation of conclusions drawn from this paper.
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Affiliation(s)
- Mohammad Izadifar
- Division of Biomedical Engineering, College of Engineering, 57 Campus Drive, University of Saskatchewan, Saskatoon, SK, S7N5A9, Canada
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Spiller KL, Nassiri S, Witherel CE, Anfang RR, Ng J, Nakazawa KR, Yu T, Vunjak-Novakovic G. Sequential delivery of immunomodulatory cytokines to facilitate the M1-to-M2 transition of macrophages and enhance vascularization of bone scaffolds. Biomaterials 2014; 37:194-207. [PMID: 25453950 DOI: 10.1016/j.biomaterials.2014.10.017] [Citation(s) in RCA: 484] [Impact Index Per Article: 48.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 10/02/2014] [Indexed: 01/22/2023]
Abstract
In normal tissue repair, macrophages exhibit a pro-inflammatory phenotype (M1) at early stages and a pro-healing phenotype (M2) at later stages. We have previously shown that M1 macrophages initiate angiogenesis while M2 macrophages promote vessel maturation. Therefore, we reasoned that scaffolds that promote sequential M1 and M2 polarization of infiltrating macrophages should result in enhanced angiogenesis and healing. To this end, we first analyzed the in vitro kinetics of macrophage phenotype switch using flow cytometry, gene expression, and cytokine secretion analysis. Then, we designed scaffolds for bone regeneration based on modifications of decellularized bone for a short release of interferon-gamma (IFNg) to promote the M1 phenotype, followed by a more sustained release of interleukin-4 (IL4) to promote the M2 phenotype. To achieve this sequential release profile, IFNg was physically adsorbed onto the scaffolds, while IL4 was attached via biotin-streptavidin binding. Interestingly, despite the strong interactions between biotin and streptavidin, release studies showed that biotinylated IL4 was released over 6 days. These scaffolds promoted sequential M1 and M2 polarization of primary human macrophages as measured by gene expression of ten M1 and M2 markers and secretion of four cytokines, although the overlapping phases of IFNg and IL4 release tempered polarization to some extent. Murine subcutaneous implantation model showed increased vascularization in scaffolds releasing IFNg compared to controls. This study demonstrates that scaffolds for tissue engineering can be designed to harness the angiogenic behavior of host macrophages towards scaffold vascularization.
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Affiliation(s)
- Kara L Spiller
- Department of Biomedical Engineering, Columbia University, 622 West 168th Street, VC12-234, New York, NY 10032, USA; School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut St., Philadelphia 19104, PA, USA.
| | - Sina Nassiri
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut St., Philadelphia 19104, PA, USA.
| | - Claire E Witherel
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut St., Philadelphia 19104, PA, USA.
| | - Rachel R Anfang
- Department of Biomedical Engineering, Columbia University, 622 West 168th Street, VC12-234, New York, NY 10032, USA.
| | - Johnathan Ng
- Department of Biomedical Engineering, Columbia University, 622 West 168th Street, VC12-234, New York, NY 10032, USA.
| | - Kenneth R Nakazawa
- Department of Biomedical Engineering, Columbia University, 622 West 168th Street, VC12-234, New York, NY 10032, USA.
| | - Tony Yu
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut St., Philadelphia 19104, PA, USA
| | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering, Columbia University, 622 West 168th Street, VC12-234, New York, NY 10032, USA.
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Mitragotri S, Burke PA, Langer R. Overcoming the challenges in administering biopharmaceuticals: formulation and delivery strategies. Nat Rev Drug Discov 2014; 13:655-72. [PMID: 25103255 PMCID: PMC4455970 DOI: 10.1038/nrd4363] [Citation(s) in RCA: 1081] [Impact Index Per Article: 108.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The formulation and delivery of biopharmaceutical drugs, such as monoclonal antibodies and recombinant proteins, poses substantial challenges owing to their large size and susceptibility to degradation. In this Review we highlight recent advances in formulation and delivery strategies--such as the use of microsphere-based controlled-release technologies, protein modification methods that make use of polyethylene glycol and other polymers, and genetic manipulation of biopharmaceutical drugs--and discuss their advantages and limitations. We also highlight current and emerging delivery routes that provide an alternative to injection, including transdermal, oral and pulmonary delivery routes. In addition, the potential of targeted and intracellular protein delivery is discussed.
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Affiliation(s)
- Samir Mitragotri
- Department of Chemical Engineering, Center for Bioengineering, University of California, Santa Barbara, California 92106, USA
| | - Paul A Burke
- Burke Bioventures LLC, 277 Broadway, Cambridge, Massachusetts 02139, USA
| | - Robert Langer
- Department of Chemical Engineering, Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
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Andreasen SØ, Fejerskov B, Zelikin AN. Biocatalytic polymer thin films: optimization of the multilayered architecture towards in situ synthesis of anti-proliferative drugs. NANOSCALE 2014; 6:4131-4140. [PMID: 24604061 DOI: 10.1039/c3nr05999e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report on the assembly of multi-layered polyelectrolyte thin films containing an immobilized enzyme to perform conversion of externally administered prodrugs and achieve delivery of the resulting therapeutics to adhering cells. Towards this goal, multi-layered coatings were assembled using poly(sodium styrene sulfonate) and poly(allylamine hydrochloride). Activity of the incorporated enzyme was quantified as a function of the assembly conditions, position of the enzyme within the multi-layered architecture, concentration of the enzyme in the adsorption solution, and concentration of the administered prodrug. Biocatalytic coatings exhibited sustained levels of enzymatic activity over at least one week of incubation in physiological buffers without signs of loss of activity of the enzyme. Developed enzyme-containing polymer films afforded zero-order release of the in situ synthesized cargo with kinetics of synthesis (nM per hour) covering at least 3 orders of magnitude. Internalization of the synthesized product by adhering cells was visualized using a fluorogenic enzyme substrate. Therapeutic utility of biocatalytic coatings was demonstrated using a myoblast cell line and a prodrug for the anti-proliferative agent, 5-fluorouridine. Taken together, this work presents a novel approach to delivery of small molecule drugs using multi-layered polymer thin films with utility in surface-mediated drug delivery, assembly of therapeutic implantable devices, and tissue engineering.
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Han B, Yang Z, Fang JY, Kuwahara K, Nimni M, Thanasukarn J, Tayag C. The Effects of Heparin Binding Proteins in Platelet Releasate on Bone Formation. Tissue Eng Part A 2014; 20:1263-70. [DOI: 10.1089/ten.tea.2013.0310] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Bo Han
- Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Southern California, Los Angeles, California
| | - Zhi Yang
- Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Southern California, Los Angeles, California
| | - Josephine Y. Fang
- Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Southern California, Los Angeles, California
| | - Kenric Kuwahara
- Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Southern California, Los Angeles, California
| | - Marcel Nimni
- Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Southern California, Los Angeles, California
| | - John Thanasukarn
- Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Southern California, Los Angeles, California
| | - Charisse Tayag
- Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Southern California, Los Angeles, California
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Puppi D, Zhang X, Yang L, Chiellini F, Sun X, Chiellini E. Nano/microfibrous polymeric constructs loaded with bioactive agents and designed for tissue engineering applications: a review. J Biomed Mater Res B Appl Biomater 2014; 102:1562-79. [PMID: 24678016 DOI: 10.1002/jbm.b.33144] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 01/29/2014] [Accepted: 03/06/2014] [Indexed: 01/04/2023]
Abstract
Nano/microfibrous polymeric constructs present various inherent advantages, such as highly porous architecture and high surface to volume ratio, making them attractive for tissue engineering purposes. Electrospinning is the most preferred technique for the fabrication of polymeric nanofibrous assemblies that can mimic the physical functions of native extracellular matrix greatly favoring cells attachment and thus influencing their morphology and activities. Different approaches have been developed to apply polymeric microfiber fabrication techniques (e.g. wet-spinning) for the obtainment of scaffolds with a three-dimensional network of micropores suitable for effective cells migration. Progress in additive manufacturing technology has led to the development of complex scaffold's shapes and microfibrous structures with a high degree of automation, good accuracy and reproducibility. Various loading methods, such as direct blending, coaxial electrospinning and microparticles incorporation, are enabling to develop customized strategies for the biofunctionalization of nano/microfibrous scaffolds with a tailored kinetics of release of different bioactive agents, ranging from small molecules, such as antibiotics, to protein drugs, such as growth factors, and even cells. Recent activities on the combination of different processing techniques and loading methods for the obtainment of biofunctionalized polymeric constructs with a complex multiscale structure open new possibilities for the development of biomimetic scaffolds endowed with a hierarchical architecture and a sophisticated release kinetics of different bioactive agents. This review is aimed at summarizing current advances in technologies and methods for manufacturing nano/microfibrous polymeric constructs suitable as tissue engineering scaffolds, and for their combination with different bioactive agents to promote tissue regeneration and therapeutic effects.
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Affiliation(s)
- Dario Puppi
- Department of Chemistry and Industrial Chemistry, Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), University of Pisa, 56010, San Piero a Grado (Pi), Italy
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Finosh GT, Jayabalan M. Regenerative therapy and tissue engineering for the treatment of end-stage cardiac failure: new developments and challenges. BIOMATTER 2014; 2:1-14. [PMID: 23507781 DOI: 10.4161/biom.19429] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Regeneration of myocardium through regenerative therapy and tissue engineering is appearing as a prospective treatment modality for patients with end-stage heart failure. Focusing on this area, this review highlights the new developments and challenges in the regeneration of myocardial tissue. The role of various cell sources, calcium ion and cytokine on the functional performance of regenerative therapy is discussed. The evolution of tissue engineering and the role of tissue matrix/scaffold, cell adhesion and vascularisation on tissue engineering of cardiac tissue implant are also discussed.
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Affiliation(s)
- G T Finosh
- Polymer Science Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala, India
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Montero RB, Vazquez-Padron RI, Pham SM, D’Ippolito G, Andreopoulos FM. Electrospun Gelatin Constructs with Tunable Fiber Orientation Promote Directed Angiogenesis. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/ojrm.2014.31001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Yamano S, Haku K, Yamanaka T, Dai J, Takayama T, Shohara R, Tachi K, Ishioka M, Hanatani S, Karunagaran S, Wada K, Moursi AM. The effect of a bioactive collagen membrane releasing PDGF or GDF-5 on bone regeneration. Biomaterials 2013; 35:2446-53. [PMID: 24388383 DOI: 10.1016/j.biomaterials.2013.12.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 12/08/2013] [Indexed: 12/21/2022]
Abstract
Regenerative procedures using barrier membrane technology are presently well established in periodontal/endodontic surgery. The objective of this study was to compare the subsequent effects of the released platelet-derived growth factor (PDGF) and growth/differentiation factor 5 (GDF-5) from collagen membranes (CMs) on bone regeneration in vitro and in vivo. In vitro studies were conducted using MC3T3-E1 mouse preosteoblasts cultured with or without factors. Cell viability, cell proliferation, alkaline phosphatase (ALP) activity and bone marker gene expression were then measured. In vivo studies were conducted by placing CMs with low or high dose PDGF or GDF-5 in rat mandibular defects. At 4 weeks after surgery new bone formation was measured using μCT and histological analysis. The results of in vitro studies showed that CM/GDF-5 significantly increased ALP and cell proliferation activities without cytotoxicity in MC3T3-E1 cells when compared to CM/PDGF or CM alone. Gene expression analysis revealed that Runx2 and Osteocalcin were significantly increased in CM/GDF-5 compared to CM/PDGF or control. Quantitative and qualitative μCT and histological analysis for new bone formation revealed that although CM/PDGF significantly enhanced bone regeneration compared to CM alone or control, CM/GDF-5 significantly accelerated bone regeneration to an even greater extent than CM/PDGF. The results also showed that GDF-5 induced new bone formation in a dose-dependent manner. These results suggest that this strategy, using a CM carrying GDF-5, might lead to an improvement in the current clinical treatment of bone defects for periodontal and implant therapy.
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Affiliation(s)
- Seiichi Yamano
- Department of Prosthodontics, New York University College of Dentistry, New York, NY 10010, USA.
| | - Ken Haku
- Department of Prosthodontics, New York University College of Dentistry, New York, NY 10010, USA
| | - Takuto Yamanaka
- Department of Prosthodontics, New York University College of Dentistry, New York, NY 10010, USA
| | - Jisen Dai
- Department of Prosthodontics, New York University College of Dentistry, New York, NY 10010, USA
| | - Tadahiro Takayama
- Department of Prosthodontics, New York University College of Dentistry, New York, NY 10010, USA
| | - Ryutaro Shohara
- Department of Prosthodontics, New York University College of Dentistry, New York, NY 10010, USA
| | - Keita Tachi
- Department of Prosthodontics, New York University College of Dentistry, New York, NY 10010, USA
| | - Mika Ishioka
- Department of Prosthodontics, New York University College of Dentistry, New York, NY 10010, USA
| | - Shigeru Hanatani
- Department of Prosthodontics, New York University College of Dentistry, New York, NY 10010, USA
| | - Sanjay Karunagaran
- Department of Prosthodontics, The University of Tennessee College of Dentistry, Memphis, TN 38103, USA
| | - Keisuke Wada
- Department of Periodontics, University of Pennsylvania School of Dental Medicine, Philadelphia, PA 19104, USA
| | - Amr M Moursi
- Department of Pediatric Dentistry, New York University College of Dentistry, New York, NY 10010, USA
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Brudno Y, Ennett-Shepard AB, Chen RR, Aizenberg M, Mooney DJ. Enhancing microvascular formation and vessel maturation through temporal control over multiple pro-angiogenic and pro-maturation factors. Biomaterials 2013; 34:9201-9. [PMID: 23972477 PMCID: PMC3811005 DOI: 10.1016/j.biomaterials.2013.08.007] [Citation(s) in RCA: 134] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 08/02/2013] [Indexed: 12/20/2022]
Abstract
Therapeutic stimulation of angiogenesis to re-establish blood flow in ischemic tissues offers great promise as a treatment for patients suffering from cardiovascular disease or trauma. Since angiogenesis is a complex, multi-step process, different signals may need to be delivered at appropriate times in order to promote a robust and mature vasculature. The effects of temporally regulated presentation of pro-angiogenic and pro-maturation factors were investigated in vitro and in vivo in this study. Pro-angiogenic factors vascular endothelial growth factor (VEGF) and angiopoietin 2 (Ang2) cooperatively promoted endothelial sprouting and pericyte detachment in a three-dimensional in vitro EC-pericyte co-culture model. Pro-maturation factors platelet-derived growth factor B (PDGF) and angiopoietin 1 (Ang1) inhibited the early stages of VEGF- and Ang2-mediated angiogenesis if present simultaneously with VEGF and Ang2, but promoted these behaviors if added subsequently to the pro-angiogenesis factors. VEGF and Ang2 were also found to additively enhance microvessel density in a subcutaneous model of blood vessel formation, while simultaneously administered PDGF/Ang1 inhibited microvessel formation. However, a temporally controlled scaffold that released PDGF and Ang1 at a delay relative to VEGF/Ang2 promoted both vessel maturation and vascular remodeling without inhibiting sprouting angiogenesis. Our results demonstrate the importance of temporal control over signaling in promoting vascular growth, vessel maturation and vascular remodeling. Delivering multiple growth factors in combination and sequence could aid in creating tissue engineered constructs and therapies aimed at promoting healing after acute wounds and in chronic conditions such as diabetic ulcers and peripheral artery disease.
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Affiliation(s)
- Yevgeny Brudno
- School of Engineering and Applied Sciences, Harvard University; Cambridge, MA. 02138
- Wyss Institute for Biological Inspired Engineering, Harvard University; Boston, MA. 02115
| | - Alessandra B. Ennett-Shepard
- School of Engineering and Applied Sciences, Harvard University; Cambridge, MA. 02138
- Department of Biomedical Engineering; University of Michigan, Ann Arbor, MI. 48109
| | - Ruth R. Chen
- School of Engineering and Applied Sciences, Harvard University; Cambridge, MA. 02138
- Department of Biomedical Engineering; University of Michigan, Ann Arbor, MI. 48109
| | - Michael Aizenberg
- Wyss Institute for Biological Inspired Engineering, Harvard University; Boston, MA. 02115
| | - David J. Mooney
- School of Engineering and Applied Sciences, Harvard University; Cambridge, MA. 02138
- Wyss Institute for Biological Inspired Engineering, Harvard University; Boston, MA. 02115
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Kishida M, Ford Versypt AN, Pack DW, Braatz RD. Optimal Control of One-dimensional Cellular Uptake in Tissue Engineering. OPTIMAL CONTROL APPLICATIONS & METHODS 2013; 34:680-695. [PMID: 24634549 PMCID: PMC3952945 DOI: 10.1002/oca.2047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A control problem motivated by tissue engineering is formulated and solved in which control of the uptake of growth factors (signaling molecules) is necessary to spatially and temporally regulate cellular processes for the desired growth or regeneration of a tissue. Four approaches are compared for determining 1D optimal boundary control trajectories for a distributed parameter model with reaction, diffusion, and convection: (i) basis function expansion, (ii) method of moments, (iii) internal model control (IMC), and (iv) model predictive control (MPC). The proposed method-of-moments approach is computationally efficient while enforcing a non-negativity constraint on the control input. While more computationally expensive than methods (i)-(iii), the MPC formulation significantly reduced the computational cost compared to simultaneous optimization of the entire control trajectory. A comparison of the pros and cons of each of the four approaches suggests that an algorithm that combines multiple approaches is most promising for solving the optimal control problem for multiple spatial dimensions.
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Affiliation(s)
- Masako Kishida
- University of Illinois at Urbana-Champaign, Urbana IL
- Massachusetts Institute of Technology, Cambridge, MA
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