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  1. 260 大学院医歯学総合研究科(歯)
  2. 60 博士学位論文
  3. 10 博士学位論文
  1. 0 資料タイプ別
  2. 02 学位論文

Exosomes from conditioned media of bone marrow-derived mesenchymal stem cells promote bone regeneration by enhancing angiogenesis

http://hdl.handle.net/10191/00051757
http://hdl.handle.net/10191/00051757
8b59aad6-95e6-4aa1-a6d6-97a6c5b6f77c
名前 / ファイル ライセンス アクション
r1ndk464.pdf 本文 (2.6 MB)
r1ndk464_a.pdf 要旨 (232.5 kB)
Item type 学位論文 / Thesis or Dissertation(1)
公開日 2020-08-31
タイトル
タイトル Exosomes from conditioned media of bone marrow-derived mesenchymal stem cells promote bone regeneration by enhancing angiogenesis
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_46ec
タイプ thesis
その他のタイトル
その他のタイトル 骨髄間葉系幹細胞培養上清由来エクソソームは血管新生を介した骨再生を促進する
著者 Takeuchi, Ryoko

× Takeuchi, Ryoko

WEKO 177942

Takeuchi, Ryoko

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著者別名
識別子 177943
識別子Scheme WEKO
姓名 竹内, 涼子
抄録
内容記述タイプ Abstract
内容記述 Growth factors in serum-free conditioned media from human bone marrow-derived mesenchymal stem cells (MSC-CM) are known to be effective in bone regeneration. However, the secretomes in MSC-CM that act as active ingredients for bone regeneration, as well as their mechanisms, remains unclear. Exosomes, components of MSC-CM, provide the recipient cells with genetic information and enhance the recipient cellular paracrine stimulation, which contributes to tissue regeneration. We hypothesized that MSC-CM-derived exosomes (MSC-Exo) promoted bone regeneration, and that angiogenesis was a key step. Here, we prepared an MSC-Exo group, MSC-CM group, and Exo-antiVEGF group (MSC-Exo with angiogenesis inhibitor), and examined the osteogenic and angiogenic potential in MSCs. Furthermore, we used a rat model of calvaria bone defect and implanted each sample to evaluate bone formation weekly, until week 4 after treatment. Results showed that MSC-Exo enhanced cellular migration and osteogenic and angiogenic gene expression in MSCs compared to that in other groups. In vivo, early bone formation by MSC-Exo was also confirmed. Two weeks after implantation, the newly formed bone area was 31.5 ± 6.5% in the MSC-Exo group while those in the control and Exo-antiVEGF groups were 15.4 ± 4.4% and 8.7 ± 1.1%, respectively. Four weeks after implantation, differences in the area between the MSC-Exo group and the Exo-antiVEGF or control groups were further broadened. Histologically, notable accumulation of osteoblast-like cells and vascular endothelial cells was observed in the MSC-Exo group; however, fewer cells were found in the Exo-antiVEGF and control groups. In conclusion, MSC-Exo promoted bone regeneration during early stages, as well as enhanced angiogenesis. Considering the tissue regeneration with transplanted cells and their secretomes, this study suggests that exosomes might play an important role, especially in angiogenesis.
内容記述
内容記述タイプ Other
内容記述 PLoS ONE. 2019, 14(11), e0225472.
DOI
識別子タイプ DOI
関連識別子 info:doi/10.1371/journal.pone.0225472
権利
権利情報 【○!C】 2019 Takeuchi et al.
著者版フラグ
値 ETD
学位名
学位名 博士(歯学)
学位授与機関
学位授与機関名 新潟大学
学位授与年月日
学位授与年月日 2020-03-23
学位授与番号
学位授与番号 13101甲第4740号
学位記番号
内容記述タイプ Other
内容記述 新大院博(歯)甲第464号
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