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Hosseini M, Shafiee A. Engineering Bioactive Scaffolds for Skin Regeneration. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2101384. [PMID: 34313003 DOI: 10.1002/smll.202101384] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/24/2021] [Indexed: 06/13/2023]
Abstract
Large skin wounds pose a major clinical challenge. Scarcity of donor site and postsurgical scarring contribute to the incomplete or partial loss of function and aesthetic concerns in skin wound patients. Currently, a wide variety of skin grafts are being applied in clinical settings. Scaffolds are used to overcome the issues related to the misaligned architecture of the repaired skin tissues. The current review summarizes the contribution of biomaterials to wound healing and skin regeneration and addresses the existing limitations in skin grafting. Then, the clinically approved biologic and synthetic skin substitutes are extensively reviewed. Next, the techniques for modification of skin grafts aiming for enhanced tissue regeneration are outlined, and a summary of different growth factor delivery systems using biomaterials is presented. Considering the significant progress in biomaterial science and manufacturing technologies, the idea of biomaterial-based skin grafts with the ability for scarless wound healing and reconstructing full skin organ is more achievable than ever.
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Affiliation(s)
- Motaharesadat Hosseini
- Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Kelvin Grove, Brisbane, QLD, 4059, Australia
| | - Abbas Shafiee
- Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane, QLD, 4029, Australia
- Royal Brisbane and Women's Hospital, Metro North Hospital and Health Service, Brisbane, QLD, 4029, Australia
- UQ Diamantina Institute, Translational Research Institute, The University of Queensland, Brisbane, QLD, 4102, Australia
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Abstract
In this review, a brief history of this unrivaled technology, flow cytometry, is provided, highlighting its past and present advances, with particular focus on "flow cell" technologies. Flow cytometry has truly revolutionized high-throughput single cell analysis, which has tremendous implications, from laboratory to the clinic. This technology embodies what is truly referred to as cross fertile research, merging the physical with the life sciences. This review introduces the recent notable advancements in flow cell technology. This advancement sees the complete removal of liquid sheath flow, which has advanced the technology with the possibility of both the reduction in its foot print, while also simplifying the flow cells explored in cytometry. Interestingly, the novel sheathless flow cell technology demonstrated herein has the flexibility for handling both heterogeneous cell populations and whole organisms, thus demonstrating a versatile flow cell technology for both flow cytometry and fluorescent-activated cell sorting.
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Affiliation(s)
- Suwan N Jayasinghe
- BioPhysics Group, Centre for Stem Cells and Regenerative Medicine, Institute of Healthcare Engineering and Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
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Liu T, Wang Y, Zhong W, Li B, Mequanint K, Luo G, Xing M. Biomedical Applications of Layer-by-Layer Self-Assembly for Cell Encapsulation: Current Status and Future Perspectives. Adv Healthc Mater 2019; 8:e1800939. [PMID: 30511822 DOI: 10.1002/adhm.201800939] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/10/2018] [Indexed: 12/23/2022]
Abstract
Encapsulating living cells within multilayer functional shells is a crucial extension of cellular functions and a further development of cell surface engineering. In the last decade, cell encapsulation has been widely utilized in many cutting-edge biomedical fields. Compared with other techniques for cell encapsulation, layer-by-layer (LbL) self-assembly technology, due to the versatility and tunability to fabricate diverse multilayer shells with controllable compositions and structures, is considered as a promising approach for cell encapsulation. This review summarizes the state-of-the-art and potential future biomedical applications of LbL cell encapsulation. First of all, a brief introduction to the LbL self-assembly technique, including assembly mechanisms and technologies, is made. Next, different cell encapsulation strategies by LbL self-assembly techniques are explained. Then, the biomedical applications of LbL cell encapsulation in cell-based biosensors, cell transplantation, cell/molecule delivery, and tissue engineering, are highlighted. Finally, discussions on the current limitations and future perspectives of LbL cell encapsulation are also provided.
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Affiliation(s)
- Tengfei Liu
- Institute of Burn Research; State Key Laboratory of Trauma; Burn and Combined Injury; Southwest Hospital; Third Military Medical University (Army Medical University); Gaotanyan Street Chongqing 400038 China
| | - Ying Wang
- Institute of Burn Research; State Key Laboratory of Trauma; Burn and Combined Injury; Southwest Hospital; Third Military Medical University (Army Medical University); Gaotanyan Street Chongqing 400038 China
| | - Wen Zhong
- Department of Biosystem Engineering; Faculty of Agriculture; University of Manitoba; Winnpeg MB Canada
| | - Bingyun Li
- School of Medicine; West Virginia University; Morgantown WV 26506-9196 USA
| | - Kibret Mequanint
- Department of Chemical and Biochemical Engineering; University of Western; Ontario London N6A 5B9 Canada
| | - Gaoxing Luo
- Institute of Burn Research; State Key Laboratory of Trauma; Burn and Combined Injury; Southwest Hospital; Third Military Medical University (Army Medical University); Gaotanyan Street Chongqing 400038 China
| | - Malcolm Xing
- Institute of Burn Research; State Key Laboratory of Trauma; Burn and Combined Injury; Southwest Hospital; Third Military Medical University (Army Medical University); Gaotanyan Street Chongqing 400038 China
- Department of Mechanical Engineering; Faculty of Engineering; University of Manitoba; Winnipeg MB R3T 2N2 Canada
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Magaz A, Faroni A, Gough JE, Reid AJ, Li X, Blaker JJ. Bioactive Silk-Based Nerve Guidance Conduits for Augmenting Peripheral Nerve Repair. Adv Healthc Mater 2018; 7:e1800308. [PMID: 30260575 DOI: 10.1002/adhm.201800308] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 05/22/2018] [Indexed: 02/03/2023]
Abstract
Repair of peripheral nerve injuries depends upon complex biology stemming from the manifold and challenging injury-healing processes of the peripheral nervous system. While surgical treatment options are available, they tend to be characterized by poor clinical outcomes for the injured patients. This is particularly apparent in the clinical management of a nerve gap whereby nerve autograft remains the best clinical option despite numerous limitations; in addition, effective repair becomes progressively more difficult with larger gaps. Nerve conduit strategies based on tissue engineering approaches and the use of silk as scaffolding material have attracted much attention in recent years to overcome these limitations and meet the clinical demand of large gap nerve repair. This review examines the scientific advances made with silk-based conduits for peripheral nerve repair. The focus is on enhancing bioactivity of the conduits in terms of physical guidance cues, inner wall and lumen modification, and imbuing novel conductive functionalities.
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Affiliation(s)
- Adrián Magaz
- Bio‐Active Materials GroupSchool of MaterialsMSS TowerThe University of Manchester Manchester M13 9PL UK
- Institute of Materials Research and Engineering (IMRE)Agency for Science Technology and Research (A*STAR) 2 Fusionopolis, Way, Innovis #08‐03 Singapore 138634 Singapore
| | - Alessandro Faroni
- Blond McIndoe LaboratoriesDivision of Cell Matrix Biology and Regenerative MedicineSchool of Biological SciencesFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science Centre Manchester M13 9PL UK
| | - Julie E. Gough
- School of MaterialsThe University of Manchester Manchester M13 9PL UK
| | - Adam J. Reid
- Blond McIndoe LaboratoriesDivision of Cell Matrix Biology and Regenerative MedicineSchool of Biological SciencesFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science Centre Manchester M13 9PL UK
- Department of Plastic Surgery and BurnsWythenshawe HospitalManchester University NHS Foundation TrustManchester Academic Health Science Centre Manchester M23 9LT UK
| | - Xu Li
- Institute of Materials Research and Engineering (IMRE)Agency for Science Technology and Research (A*STAR) 2 Fusionopolis, Way, Innovis #08‐03 Singapore 138634 Singapore
| | - Jonny J. Blaker
- Bio‐Active Materials GroupSchool of MaterialsMSS TowerThe University of Manchester Manchester M13 9PL UK
- School of MaterialsThe University of Manchester Manchester M13 9PL UK
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Chang L, Hu J, Chen F, Chen Z, Shi J, Yang Z, Li Y, Lee LJ. Nanoscale bio-platforms for living cell interrogation: current status and future perspectives. NANOSCALE 2016; 8:3181-3206. [PMID: 26745513 DOI: 10.1039/c5nr06694h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The living cell is a complex entity that dynamically responds to both intracellular and extracellular environments. Extensive efforts have been devoted to the understanding intracellular functions orchestrated with mRNAs and proteins in investigation of the fate of a single-cell, including proliferation, apoptosis, motility, differentiation and mutations. The rapid development of modern cellular analysis techniques (e.g. PCR, western blotting, immunochemistry, etc.) offers new opportunities in quantitative analysis of RNA/protein expression up to a single cell level. The recent entries of nanoscale platforms that include kinds of methodologies with high spatial and temporal resolution have been widely employed to probe the living cells. In this tutorial review paper, we give insight into background introduction and technical innovation of currently reported nanoscale platforms for living cell interrogation. These highlighted technologies are documented in details within four categories, including nano-biosensors for label-free detection of living cells, nanodevices for living cell probing by intracellular marker delivery, high-throughput platforms towards clinical current, and the progress of microscopic imaging platforms for cell/tissue tracking in vitro and in vivo. Perspectives for system improvement were also discussed to solve the limitations remains in current techniques, for the purpose of clinical use in future.
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Affiliation(s)
- Lingqian Chang
- NSF Nanoscale Science and Engineering Center (NSEC), The Ohio State University, Columbus, OH 43212, USA.
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Han YL, Wang S, Zhang X, Li Y, Huang G, Qi H, Pingguan-Murphy B, Li Y, Lu TJ, Xu F. Engineering physical microenvironment for stem cell based regenerative medicine. Drug Discov Today 2014; 19:763-73. [PMID: 24508818 DOI: 10.1016/j.drudis.2014.01.015] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 01/20/2014] [Accepted: 01/27/2014] [Indexed: 12/13/2022]
Abstract
Regenerative medicine has rapidly evolved over the past decade owing to its potential applications to improve human health. Targeted differentiations of stem cells promise to regenerate a variety of tissues and/or organs despite significant challenges. Recent studies have demonstrated the vital role of the physical microenvironment in regulating stem cell fate and improving differentiation efficiency. In this review, we summarize the main physical cues that are crucial for controlling stem cell differentiation. Recent advances in the technologies for the construction of physical microenvironment and their implications in controlling stem cell fate are also highlighted.
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Affiliation(s)
- Yu Long Han
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Shaanxi, 710049, China; Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Shuqi Wang
- Brigham Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Xiaohui Zhang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Shaanxi, 710049, China; Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Yuhui Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Shaanxi, 710049, China; Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Guoyou Huang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Shaanxi, 710049, China; Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Hao Qi
- Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Belinda Pingguan-Murphy
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Yinghui Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and training Center, Beijing, 100094, China
| | - Tian Jian Lu
- Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China.
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Shaanxi, 710049, China; Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China.
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Recent advancements in tissue engineering for stem cell-based cardiac therapies. Ther Deliv 2013; 4:503-16. [PMID: 23557290 DOI: 10.4155/tde.13.13] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Advances in cardiac tissue engineering have recently focused on utilizing stem cells to regenerate infarcted and scarred myocardium. Due to their proliferative nature and tremendous potential for differentiation, stem cells are presently being investigated for clinical applications. Unfortunately, limiting factors such as massive cell death and poor retention have hampered clinical outcomes. Consequently, the development of an efficient delivery system for stem cells to the target site is essential. The use of innovative tissue engineering techniques has opened up new horizons within the field of cellular cardiomyoplasty. This paper will present a comprehensive overview of the recent advancements in stem cell technology destined for myocardial tissue repair. In addition, the multidisciplinary approach to tissue engineering presented here will provide the reader with insight into the clinical realization of cellular cardiomyoplasty.
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