The DOI matches its Crossref record; 30 of the 30 references it cites were found in a registry or an index.
Polysurgery of cell sheet grafts overcomes diffusion limits to produce thick, vascularized myocardial tissues
Abstract
Recently, the field of tissue engineering has progressed rapidly, but poor vascularization remains a major obstacle in bioengineering cell‐dense tissues, limiting the viable size of constructs due to hypoxia, nutrient insufficiency, and waste accumulation. Therefore, new technologies for fabricating functional tissues with a well‐organized vasculature are required. In the present study, neonatal rat cardiomyocytes were harvested as intact sheets from temperature‐responsive culture dishes and stacked into cell‐dense myocardial tissues. However, the thickness limit for layered cell sheets in subcutaneous tissue was ~80 μm (3 layers). To overcome this limitation, repeated transplantation of triple‐layer grafts was performed at 1, 2, or 3 day intervals. The two overlaid grafts completely synchronized and the whole tissues survived without necrosis in the 1 or 2 day interval cases. Multistep transplantation also created ~1 mm thick myocardium with a well‐organized microvascular network. Furthermore, functional multilayer grafts fabricated over a surgically connectable artery and vein revealed complete graft perfusion via the vessels and ectopic transplantation of the grafts was successfully performed using direct vessel anastomoses. These cultured cell sheet integration methods overcome long‐standing barriers to producing thick, vascularized tissues, revealing a possible solution for the clinical repair of various damaged organs, including the impaired myocardium.
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Metadata
- Authors
- Shimizu, T., Sekine, H., Yang, J., Isoi, Y., Yamato, M., Kikuchi, A., Kobayashi, E., & Okano, T.
- Venue
- The FASEB Journal
- Publisher
- Wiley
- Published
- 2006-01-26
- Volume
- 20
- Issue
- 6
- Pages
- 708-710
- ISSN
- 0892-6638 (ISSN-L)
- 1530-6860
- OpenAlex
- W2144856878
- Cited by
- 478
- References
- 30
- FWCI
- 23.07
- Type
- journal article
- Language
- en
- Open access
- closed
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- Shimizu, T., Sekine, H., Yang, J., Isoi, Y., Yamato, M., Kikuchi, A., Kobayashi, E., & Okano, T. (2006). Polysurgery of cell sheet grafts overcomes diffusion limits to produce thick, vascularized myocardial tissues. The FASEB Journal. https://doi.org/10.1096/fj.05-4715fje
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