scholarly journals Recent Advances in ROS-Responsive Cell Sheet Techniques for Tissue Engineering

2019 ◽  
Vol 20 (22) ◽  
pp. 5656 ◽  
Author(s):  
Min-Ah Koo ◽  
Mi Hee Lee ◽  
Jong-Chul Park
Keyword(s):  
Tissue Engineering ◽  
Cell Sheet ◽  
Cell Detachment ◽  
Oxygen Species ◽  
Cell Sheets ◽  
Cell Sheet Engineering ◽  
New Approach ◽  
Responsive Systems ◽  
Cell Based Therapy ◽  
Responsive Cell

Cell sheet engineering has evolved rapidly in recent years as a new approach for cell-based therapy. Cell sheet harvest technology is important for producing viable, transplantable cell sheets and applying them to tissue engineering. To date, most cell sheet studies use thermo-responsive systems to detach cell sheets. However, other approaches have been reported. This review provides the progress in cell sheet detachment techniques, particularly reactive oxygen species (ROS)-responsive strategies. Therefore, we present a comprehensive introduction to ROS, their application in regenerative medicine, and considerations on how to use ROS in cell detachment. The review also discusses current limitations and challenges for clarifying the mechanism of the ROS-responsive cell sheet detachment.

scholarly journals Design of Temperature-Responsive Cell Culture Surfaces for Cell Sheet Engineering

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Y. Akiyama
Keyword(s):  
Cell Culture ◽  
Cell Attachment ◽  
Cell Sheet ◽  
Extensive Study ◽  
Cell Sheets ◽  
Cell Sheet Engineering ◽  
Temperature Responsive ◽  
Interdisciplinary Field ◽  
Culture Surface ◽  
Responsive Cell

Temperature-responsive cell culture surfaces, which modulate cell attachment/detachment characteristics with temperature, have been used to fabricate cell sheets. Extensive study on fabrication of cell sheet with the temperature-responsive cell culture surface, manipulation, and transplantation of the cell sheet has established the interdisciplinary field of cell sheet engineering, in which engineering, biological, and medical fields closely collaborate. Such collaboration has pioneered cell sheet engineering, making it a promising and attractive technology in tissue engineering and regenerative medicine. This review introduces concepts of cell sheet engineering, followed by designs for the fabrication of various types of temperature-responsive cell culture surfaces and technologies for cell sheet manipulation. The development of various methods for the fabrication of temperature-responsive cell culture surfaces was also summarized. The availability of cell sheet engineering for the treatment and regeneration of damaged human tissue has also been described, providing examples of the clinical application of cell sheet transplantation in humans.

scholarly journals Recent Advances in Engineered Stem Cell-Derived Cell Sheets for Tissue Regeneration

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 209 ◽  
Author(s):  
Hyunbum Kim ◽  
Yunhye Kim ◽  
Jihyun Park ◽  
Nathaniel Hwang ◽  
Yun Lee ◽  
...  
Keyword(s):  
Stem Cell ◽  
Tissue Regeneration ◽  
Proteolytic Enzymes ◽  
Intact Cell ◽  
Cell Sheet ◽  
Intercellular Junctions ◽  
Surface Proteins ◽  
Cell Sheets ◽  
Cell Sheet Engineering ◽  
Cell Based Therapy

The substantial progress made in the field of stem cell-based therapy has shown its significant potential applications for the regeneration of defective tissues and organs. Although previous studies have yielded promising results, several limitations remain and should be overcome for translating stem cell-based therapies to clinics. As a possible solution to current bottlenecks, cell sheet engineering (CSE) is an efficient scaffold-free method for harvesting intact cell sheets without the use of proteolytic enzymes, and may be able to accelerate the adoption of stem cell-based treatments for damaged tissues and organs regeneration. CSE uses a temperature-responsive polymer-immobilized surface to form unique, scaffold-free cell sheets composed of one or more cell layers maintained with important intercellular junctions, cell-secreted extracellular matrices, and other important cell surface proteins, which can be achieved by changing the surrounding temperature. These three-dimensional cell sheet-based tissues can be designed for use in clinical applications to target-specific tissue regeneration. This review will highlight the principles, progress, and clinical relevance of current approaches in the cell sheet-based technology, focusing on stem cell-based therapies for bone, periodontal, skin, and vascularized muscles.

Bulk poly(N-isopropylacrylamide) (PNIPAAm) thermoresponsive cell culture platform: toward a new horizon in cell sheet engineering

2019 ◽  
Vol 7 (6) ◽  
pp. 2277-2287 ◽  
Author(s):  
Andrew Choi ◽  
Kyoung Duck Seo ◽  
Hyungjun Yoon ◽  
Seon Jin Han ◽  
Dong Sung Kim
Keyword(s):  
Cell Culture ◽  
Cell Sheet ◽  
Cell Sheets ◽  
Cell Sheet Engineering

In contrast to the conventional ‘grafting’-based thermoresponsive cell culture platform, we first developed a bulk form of thermoresponsive cell culture platform for attaching/detaching diverse types and origins of the cell sheets in different shape.

scholarly journals A Concise Review on the Use of Mesenchymal Stem Cells in Cell Sheet-Based Tissue Engineering with Special Emphasis on Bone Tissue Regeneration

2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
A. Cagdas Yorukoglu ◽  
A. Esat Kiter ◽  
Semih Akkaya ◽  
N. Lale Satiroglu-Tufan ◽  
A. Cevik Tufan
Keyword(s):  
Tissue Engineering ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Ethical Issues ◽  
Cell Sheet ◽  
Bone Tissue Regeneration ◽  
Differentiation Potential ◽  
Cell Sheet Engineering ◽  
Application Techniques

The integration of stem cell technology and cell sheet engineering improved the potential use of cell sheet products in regenerative medicine. This review will discuss the use of mesenchymal stem cells (MSCs) in cell sheet-based tissue engineering. Besides their adhesiveness to plastic surfaces and their extensive differentiation potential in vitro, MSCs are easily accessible, expandable in vitro with acceptable genomic stability, and few ethical issues. With all these advantages, they are extremely well suited for cell sheet-based tissue engineering. This review will focus on the use of MSC sheets in osteogenic tissue engineering. Potential application techniques with or without scaffolds and/or grafts will be discussed. Finally, the importance of osteogenic induction of these MSC sheets in orthopaedic applications will be demonstrated.

scholarly journals Temperature-responsive intelligent interfaces for biomolecular separation and cell sheet engineering

2009 ◽  
Vol 6 (suppl_3) ◽  
Author(s):  
Kenichi Nagase ◽  
Jun Kobayashi ◽  
Teruo Okano
Keyword(s):  
Cell Sheet ◽  
Copolymer Composition ◽  
Cell Sheets ◽  
Chromatographic Separations ◽  
Cell Sheet Engineering ◽  
External Temperature ◽  
Cell Monolayers ◽  
Temperature Responsive ◽  
Confluent Cell ◽  
Dependent Cell

Temperature-responsive intelligent surfaces, prepared by the modification of an interface with poly( N -isopropylacrylamide) and its derivatives, have been used for biomedical applications. Such surfaces exhibit temperature-responsive hydrophilic/hydrophobic alterations with external temperature changes, which, in turn, result in thermally modulated interactions with biomolecules and cells. In this review, we focus on the application of these intelligent surfaces to chromatographic separation and cell cultures. Chromatographic separations using several types of intelligent surfaces are mentioned briefly, and various effects related to the separation of bioactive compounds are discussed, including wettability, copolymer composition and graft polymer architecture. Similarly, we also summarize temperature-responsive cell culture substrates that allow the recovery of confluent cell monolayers as contiguous living cell sheets for tissue-engineering applications. The key factors in temperature-dependent cell adhesion/detachment control are discussed from the viewpoint of grafting temperature-responsive polymers, and new methodologies for effective cell sheet culturing and the construction of thick tissues are summarized.

scholarly journals Scaffold-Free 3-D Cell Sheet Technique Bridges the Gap between 2-D Cell Culture and Animal Models

2019 ◽  
Vol 20 (19) ◽  
pp. 4926 ◽  
Author(s):  
Ayidah Alghuwainem ◽  
Alaa T. Alshareeda ◽  
Batla Alsowayan
Keyword(s):  
Tissue Engineering ◽  
Cell Culture ◽  
Animal Models ◽  
Tissue Repair ◽  
Cell Sheet ◽  
Cell Sheets ◽  
Systemic Injection ◽  
In Vivo Testing ◽  
D Cell

Various tissue engineering techniques have been created in research spanning two centuries, resulting in new opportunities for growing cells in culture and the creation of 3-D tissue-like constructs. These techniques are classified as scaffold-based and scaffold-free techniques. Cell sheet, as a scaffold-free technique, has attracted research interest in the context of drug discovery and tissue repair, because it provides more predictive data for in vivo testing. It is one of the most promising techniques and has the potential to treat degenerative tissues such as heart, kidneys, and liver. In this paper, we argue the advantages of cell sheets as a scaffold-free approach, compared to other techniques, including scaffold-based and scaffold-free techniques such as the classic systemic injection of cell suspension.

Periodontal Tissue Engineering with a Multiphasic Construct and Cell Sheets

2019 ◽  
Vol 98 (6) ◽  
pp. 673-681 ◽  
Author(s):  
C. Vaquette ◽  
S. Saifzadeh ◽  
A. Farag ◽  
D.W. Hutmacher ◽  
S. Ivanovski
Keyword(s):  
Tissue Engineering ◽  
Periodontal Ligament ◽  
Cell Sheet ◽  
Periodontal Regeneration ◽  
Surrounding Tissue ◽  
Periodontal Ligament Cells ◽  
Periodontal Tissue ◽  
Micro Computed Tomography ◽  
Cell Sheets ◽  
Tissue Integration

This study reports on scaffold-based periodontal tissue engineering in a large preclinical animal model. A biphasic scaffold consisting of bone and periodontal ligament compartments manufactured by melt and solution electrospinning, respectively, was used for the delivery of in vitro matured cell sheets from 3 sources: gingival cells (GCs), bone marrow–derived mesenchymal stromal cells (Bm-MSCs), and periodontal ligament cells (PDLCs). The construct featured a 3-dimensional fibrous bone compartment with macroscopic pore size, while the periodontal compartment consisted of a flexible porous membrane for cell sheet delivery. The regenerative performance of the constructs was radiographically and histologically assessed in surgically created periodontal defects in sheep following 5 and 10 wk of healing. Histologic observation demonstrated that the constructs maintained their shape and volume throughout the entirety of the in vivo study and were well integrated with the surrounding tissue. There was also excellent tissue integration between the bone and periodontal ligament compartments as well as the tooth root interface, enabling the attachment of periodontal ligament fibers into newly formed cementum and bone. Bone coverage along the root surface increased between weeks 5 and 10 in the Bm-MSC and PDLC groups. At week 10, the micro–computed tomography results showed that the PDLC group had greater bone fill as compared with the empty scaffold, while the GC group had less bone than the 3 other groups (control, Bm-MSC, and PDLC). Periodontal regeneration, as measured by histologically verified new bone and cementum formation with obliquely inserted periodontal ligament fibers, increased between 5 and 10 wk for the empty, Bm-MSC, and PDLC groups, while the GC group was inferior to the Bm-MSC and PDLC groups at 10 wk. This study demonstrates that periodontal regeneration can be achieved via the utilization of a multiphasic construct, with Bm-MSCs and PDLCs obtaining superior results as compared with GC-derived cell sheets.

scholarly journals Phenotypic traits of mesenchymal stem cell sheets fabricated by temperature-responsive cell culture plate: structural characteristics of MSC sheets

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Mitsuyoshi Nakao ◽  
Kyungsook Kim ◽  
Kenichi Nagase ◽  
David W. Grainger ◽  
Hideko Kanazawa ◽  
...  
Keyword(s):  
Cell Culture ◽  
Stem Cell ◽  
Mesenchymal Stem Cell ◽  
Cell Sheet ◽  
Cellular Structures ◽  
Phenotypic Traits ◽  
Cell Sheets ◽  
Temperature Responsive ◽  
Cell Sheet Technology ◽  
Responsive Cell

Abstract Background In most stem cell therapy strategies reported to date, stem cells are introduced to damaged tissue sites to repair and regenerate the original tissue structure and function. MSC therapeutic efficacies are inconsistent, largely attributed to transplanted MSC difficulties both in engrafting at tissue sites and in retaining their therapeutic functions from suspension formulations. MSC functional components, including cell adhesion and cell–cell junction proteins, and ECM that contribute to essential cellular therapeutic effects, are damaged or removed by proteolytic enzymes used in stem cell harvesting strategies from culture. To overcome these limitations, methods to harvest and transplant cells without disrupting critical stem cell functions are required. Cell sheet technology, exploiting temperature-responsive cell culture surfaces, permits cell harvest without cell protein damage. This study is focused on phenotypic traits of MSC sheets structurally and functionally to understand therapeutic benefits of cell sheets. Methods/results This study verified cleaved cellular proteins (vinculin, fibronectin, laminin, integrin β-1, and connexin 43) and increased apoptotic cell death produced under standard trypsin harvesting treatment in a time-dependent manner. However, MSC sheets produced without trypsin using only temperature-controlled sheet harvest from culture plastic exhibited intact cellular structures. Also, MSCs harvested using enzymatic treatment (i.e., chemical disruption) showed higher pYAP expression compared to MSC sheets. Conclusion Retention of cellular structures such as ECM, cell–cell junctions, and cell–ECM junctions is correlated with human umbilical cord mesenchymal stem cell (hUC-MSC) survival after detachment from cell culture surfaces. Retaining these proteins intact in MSC cultures using cell sheet technology is proposed to enhance stem cell survival and their function in stem cell-based therapy.

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