【博士論文】学術データベース

博士論文 / Autologous adipose-derived stem cell sheets enhance the strength of intestinal anastomosis 自家脂肪由来幹細胞シートは消化管縫合部の強度を増強する

著者

書誌事項

タイトル

Autologous adipose-derived stem cell sheets enhance the strength of intestinal anastomosis

タイトル別名

自家脂肪由来幹細胞シートは消化管縫合部の強度を増強する

著者名

丸屋安広

学位授与大学

Nagasaki University (長崎大学) (大学ID:0073) (CAT機関ID:KI000877)

取得学位

博士(医学)

学位授与番号

甲医歯薬第989号

学位授与年月日

2017-09-06

注記・抄録

Objective: Adipose-derived stem cells (ASCs) are capable of multiple differentiation pathways, imparting immunomodulatory effects, and secreting factors that are important for wound healing. These characteristics can be exploited to decrease the incidence of anastomotic leakage. Methods: In order to delay local wound healing at the anastomotic site, we induced ischemia in a portion of porcine small intestine by ligating vessels. Then, we injected mitomycin C into the serosa of the small intestine above the ligated vessels. Anastomotic sites were created by 2 cm incisions made in the opposite mesenteric area. ASCs were isolated from the porcine subcutaneous fat tissues and expanded under culture conditions. ASCs were trypsinized and seeded on temperature-responsive dishes and cultured to form confluent sheets. Three ASC sheets were transplanted onto the serous membrane after suturing. The extent of anastomotic wound healing was evaluated by bursting pressure, hydroxyproline content, and mRNA expression of collagen-1 alpha1 and collagen-3 alpha1. Results: We found that transplantation of ASC sheets increased anastomotic site bursting pressure. Additionally, transplantation of ASC sheets increased the hydroxyproline content of the anastomoses. Furthermore, transplantation of ASC sheets increased mRNA expression of collagen-1 alpha1 and collagen-3 alpha1. Conclusions: Our findings showed that transplantation of autologous ASC sheets enhanced collagen synthesis and anastomotic strength. Further studies are necessary to identify substances that, in combination with ASC sheets, might enhance collagen synthesis and healing in sites of anastomosis.

開始ページ : 24

終了ページ : 33

元資料の権利情報 : © 2017, The Japanese Society for Regenerative Medicine. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Objective: Adipose-derived stem cells (ASCs) are capable of multiple differentiation pathways, imparting immunomodulatory effects, and secreting factors that are important for wound healing. These characteristics can be exploited to decrease the incidence of anastomotic leakage. Methods: In order to delay local wound healing at the anastomotic site, we induced ischemia in a portion of porcine small intestine by ligating vessels. Then, we injected mitomycin C into the serosa of the small intestine above the ligated vessels. Anastomotic sites were created by 2 cm incisions made in the opposite mesenteric area. ASCs were isolated from the porcine subcutaneous fat tissues and expanded under culture conditions. ASCs were trypsinized and seeded on temperature-responsive dishes and cultured to form confluent sheets. Three ASC sheets were transplanted onto the serous membrane after suturing. The extent of anastomotic wound healing was evaluated by bursting pressure, hydroxyproline content, and mRNA expression of collagen-1 alpha1 and collagen-3 alpha1. Results: We found that transplantation of ASC sheets increased anastomotic site bursting pressure. Additionally, transplantation of ASC sheets increased the hydroxyproline content of the anastomoses. Furthermore, transplantation of ASC sheets increased mRNA expression of collagen-1 alpha1 and collagen-3 alpha1.

Conclusions: Our findings showed that transplantation of autologous ASC sheets enhanced collagen synthesis and anastomotic strength. Further studies are necessary to identify substances that, in combination with ASC sheets, might enhance collagen synthesis and healing in sites of anastomosis.

キーワード

adipose-derived stem cells, Prevent anastomotic leakage

各種コード

NII論文ID(NAID)

500001039914

NII著者ID(NRID)
  • 8000001148105
DOI (出版社)

10.1016/j.reth.2017.06.004

DOI

info:doi/10.1016/j.reth.2017.06.004

本文言語コード

eng

データ提供元

機関リポジトリ / NDLデジタルコレクション

DOI

博士論文 / 長崎大学 / 医学

博士論文 / 長崎大学

博士論文 / 医学

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