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생쥐 두개골에서 동종골 이식 시 면역억제에 대한 cyclosporine A의 효과

The immunosuppression effect of cyclosporine A on the allogenic calvarial bone graft in mice

  • 김방신 (전남대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 박상묵 (전남대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 김경락 (전남대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 정연욱 (전남대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 한만승 (전남대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 국민석 (전남대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 박홍주 (전남대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 유선열 (전남대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 오희균 (전남대학교 치의학전문대학원 구강악안면외과학교실)
  • Kim, Bang-Sin (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University) ;
  • Park, Sang-Mook (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University) ;
  • Kim, Kyung-Rak (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University) ;
  • Jeoung, Youn-Wook (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University) ;
  • Han, Man-Seung (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University) ;
  • Kook, Min-Suk (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University) ;
  • Park, Hong-Ju (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University) ;
  • Ryu, Sun-Youl (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University) ;
  • Oh, Hee-Kyun (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University)
  • 투고 : 2010.07.05
  • 심사 : 2010.10.22
  • 발행 : 2010.10.29

초록

Introduction: This study examined the effect of cyclosporine A (CsA) on the allogenic cranial bone graft in the mice. Materials and Methods: Twenty eight 12-week-old male ICR mice weighing 40 g were used. The experimental group was injected subcutaneously with CsA (10 mg/kg/day) diluted in Caster oil for 7 days prior to the graft until sacrifice. The control group was injected with the same solution without CsA. Two full-thickness bone defects with a diameter of 3 mm were made with a trephine bur in the parietal bone lateral to the sagittal suture. A calvarial defect of a mouse was grafted with allogenic calvarial bone disc from another mouse. The experimental and control groups were injected with CsA and the solution without CsA in the same manner before surgery, respectively. The mice were sacrificed at 1 week, 2 weeks and 4 weeks after the bone graft, respectively. Results: In the experimental group, fibrous connective tissues and small amounts of inflammatory cells were observed. At 2 weeks after the allograft in the experimental group, new bone formation in fibrous collagenous tissue and around the allogenic bone was noted. At 4 weeks after the allograft, new bone formation was active along and at the periphery of the mature allogenic bone. The proliferation of blood vessels increased in bone marrow. In the control group, fibrous tissues and inflammatory cells were observed around the allogenic bone and existing bone at 1 week. At 2 weeks after the allograft, the proliferation of blood vessels accompanied by inflammatory cells were scattered in the fibrous connective tissues. New bone formation around the allogenic and existing bone could be observed. At 4 weeks after the allograft, inflammatory cells were severely infiltrated around the allogenic bone. Osteoclasts were scattered along the allogenic bone and induced bone resorption. Conclusion: These results suggest that the daily administration of CsA (10 mg/kg/day) induces efficient immunosuppression without serious complications, and this protocol might be useful for the experimental model of allogenic bone grafts.

키워드

참고문헌

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