The Mobilization and Recruitment of C-Kit+ Cells Contribute to Wound Healing after Surgery

Yoshihiro Takemoto, Tao Sheng Li, Masayuki Kubo, Mako Ohshima, Hiroshi Kurazumi, Kazuhiro Ueda, Tadahiko Enoki, Tomoaki Murata, Kimikazu Hamano

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Delayed wound healing is a serious clinical problem in patients after surgery. A recent study has demonstrated that bone marrow-derived c-kit-positive (c-kit+) cells play important roles in repairing and regenerating various tissues and organs. To examine the hypothesis that surgical injury induces the mobilization and recruitment of c-kit+ cells to accelerate wound healing. Mice were subjected to a left pneumonectomy. The mobilization of c-kit+ cells was monitored after surgery. Using green fluorescent protein (GFP+) bone marrow-transplanted chimera mice, we investigated further whether the mobilized c-kit+ cells were recruited to effect wound healing in a skin puncture model. The group with left pneumonectomies increased the c-kit+ and CD34+ stem cells in peripheral blood 24 h after surgery. At 3 days after surgery, the skin wound size was observed to be significantly smaller, and the number of bone marrow-derived GFP+ cells and GFP+/c-kit+ cells in the wound tissue was significantly greater in mice that had received pneumonectomies, as compared with those that had received a sham operation. Furthermore, some of these GFP+ cells were positively expressed specific markers of macrophages (F4/80), endothelial cells (CD31), and myofibroblasts (αSMA). The administration of AMD3100, an antagonist of a stromal-cell derived factor (SDF)-1/CXCR4 signaling pathway, reduced the number of GFP+ cells in wound tissue and completely negated the accelerated wound healing. Surgical injury induces the mobilization and recruitment of c-kit+ cells to contribute to wound healing. Regulating c-kit+ cells may provide a new approach that accelerates wound healing after surgery.

Original languageEnglish
Article numbere48052
JournalPloS one
Volume7
Issue number11
DOIs
Publication statusPublished - Nov 14 2012

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)
  • General

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