Journal
REGENERATIVE BIOMATERIALS
Volume 1, Issue 1, Pages 91-102Publisher
OXFORD UNIV PRESS
DOI: 10.1093/rb/rbu011
Keywords
poly(N-isoproplyacrylamide); temperature-responsive cell culture surface; cell sheet; cell sheet engineering
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Funding
- Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan
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Cell sheet engineering, which fabricates sheet-like tissues without biodegradable scaffolds, has been proposed as a novel approach for tissue engineering. Cells have been cultured and proliferate to confluence on a temperature-responsive cell culture surface at 37 degrees C. By decreasing temperature to 20 degrees C, an intact cell sheet can be harvested from the culture surface without enzymatic treatment. This new approach enables cells to keep their cell-cell junction, cell surface proteins and extracellular matrix. Therefore, recovered cell sheet can be easily not only transplanted to host tissue, but also constructed a three-dimensional (3D) tissue by layering cell sheets. Moreover, cell sheet manipulation technology and bioreactor have been combined with the cell sheet technology to fabricate a complex and functional 3D tissue in vitro. So far, cell sheet technology has been applied in regenerative medicine for several tissues, and a number of clinical studies have been performed. In this review, recent advances in the preparation of temperature-responsive cell culture surface, the fabrication of organ-like tissue and the clinical application of cell sheet engineering are summarized and discussed.
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