並列タイトル等骨再生治療を目的とした皮質骨由来間葉系間質細胞によるスフェロイドの凍結保存
タイトル（掲載誌）Tissue Engineering Part C:Methods
一般注記Spontaneously formed spheroids from mouse compact bone-derived mesenchymal stromal cells (CB-MSCs) possess enhanced stemness and superior plasticity. In this study,the effect of cryopreservation on viabil ity,stemness,and osteogenic differentiation capability of spontaneous CB-MSC spheroids were investigated.CB-MSCs were isolated from mouse femur and tibia. Spheroids were cryopreserved with various concentra tions of dimethyl sulfoxide (DMSO). After thawing,the number of living and dead cells was measured.The expression levels of stem cell markers and osteogenic marker genes were analyzed. The cryopreserved and noncryopreserved spheroids were transplanted in mice with a beta-tricalcium phosphate as a scaffold to evaluate the in vivo bone-forming capability.The percentage of living cells was highest when 5% DMSO was used as a cryoprotectant,confirmed by the number of dead cells.The expression of stem cell marker genes and osteogenic differentiation capability were maintained after cryopreservation with 5% DMSO. The cryopre served spontaneous CB-MSC spheroids showed remarkable new bone formation in vivo,identical to that of the noncryopreserved spheroids even without osteogenic induction. The cryopreserved spontaneous CB-MSC spheroids retained stemness and osteogenic differentiation capability and highlight the utility of spontaneous CB-MSC spheroids as ready-to-use tissue-engineered products for bone tissue engineering.
2021
identifier:甲第239号
PubMed番号 : 33267737
元資料の権利情報 : ©️ Hongwei Dong et al.2021; Published by Mary Ann Liebert, Inc. This Open Access article is distributed under the terms of the Creative Commons License [CC-BY] (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and re- production in any medium, provided the original work is properly cited.
元資料の権利情報 : CC BY
開始ページ : 253
終了ページ : 263
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