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Biochem Biophys Rep. 2015 May 12;2:57-62. doi: 10.1016/j.bbrep.2015.05.001. eCollection 2015 Jul.

Noninvasive cross-sectional observation of three-dimensional cell sheet-tissue-fabrication by optical coherence tomography.

Biochemistry and biophysics reports

Yuji Haraguchi, Tatsuya Shimizu, Kiminori Mizuuchi, Hiroto Kawata, Mari Kobayashi, Yasushi Hirai, Shin-Ichi Iwana

Affiliations

  1. Institute of Advanced Biomedical Engineering and Science, TWIns, Tokyo Women?s Medical University, Tokyo 162-8666, Japan.
  2. Panasonic Healthcare Co., Ltd., 2-38-5 Nishishinbashi, Minato-ku, Tokyo 105-8433, Japan.
  3. Joint Graduate School of Tokyo Women?s Medical University and Waseda University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan.

PMID: 29124144 PMCID: PMC5668641 DOI: 10.1016/j.bbrep.2015.05.001

Abstract

Cell sheet engineering allows investigators/clinicians to prepare cell-dense three-dimensional (3-D) tissues, and various clinical trials with these fabricated tissues have already been performed for regenerating damaged tissues. Cell sheets are easily manipulated and 3-D tissues can be rapidly fabricated by layering the cell sheets. This study used optical coherence tomography (OCT) to noninvasively analyze the following processes: (1) adhesions between layered cell sheets, and (2) the beating and functional interaction of cardiac cell sheet-tissues for fabricating functional thicker 3-D tissues. The tight adhesions and functional couplings between layered cell sheets could be observed cross-sectionally and in real time. Importantly, the noninvasive and cross-sectional analyses of OCT make possible to fabricate 3-D tissues by confirming the adherence and functional couplings between layered cell sheets. OCT technology would contribute to cell sheet engineering and regenerative medicine.

Keywords: Cell adhesion; Cell sheet engineering; Noninvasive observation; Optical coherence tomography; Three-dimensional tissue fabrication

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