Journal of Periodontal and Implant Science

  • 제33권3호
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  • Pages.331-340
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  • 2003
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  • 2093-2278(pISSN)
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  • 2093-2286(eISSN)
대한치주과학회 (Korean Academy of Periodontology)
권호 표지

동맥경화증에 있어서 Porphyromonas gingivalis와 인체 열충격단백의 T-세포 및 교차성 B-세포 epitope

T-and cross-reactive B-cell epitopes of Porphyromonas gingivalis and human heat shock protein 60 in atherosclerosis

  • 최점일 (부산대학교 치과대학 치주과)
  • Choi, Jeom-Il (Department of Periodontology, School of Dentistry, Pusan National University)
  • 발행 : 2003.09.30
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⟨ 이전 논문 다음 논문 ⟩

초록

본 연구의 목적은 인간의 동맥경화증에서 Porphyromonas gingivalis (P. gingivalis)와 인체 열충격단백 60의 T-세포 및 교차성 B-세포 epitope를 규명하고 수립된 T-세포주의 T-세포 주요조직적합체 양상을 파악하려는 데 있다. P. gingivalis 열충격단백-반응성 T 세포주와 환자의 혈청을 이용하여 P. gingivalis 열충격단백60 분자를 구성하는 104개의 중복성 합성 펩타이드의 T-세포 epitope과 B-세포 epitope을 규명하였다. 인체 열충격단백60에 대한 B-세포 epitope도 같은 방법으로 파악하였다. P. gingivalis, P. gingivalis 열충격단백60 또는 인체 열충격단백60에 대한 IgG 항체는 모든 동맥경화증 환자에서 상승하였다. P. gingivalis 열충격단백60의 3, 15, 24, 33, 45, 53, 64, 84, 88, 99번 펩타이드가 주요한 T-세포 epitope였고 이것들은 T-세포 및 B-세포 공동 epitope이기도 했다. 또한 인체 열충격단백60 교차반응 B-세포 epitope은 15, 29, 53, 56, 69, 74번 펩타이드로 판명되었다. 대부분 환자의 주요조직적합체는 $HLA-DRB1^{\ast}1504$와 $HLA-DZB1^{\ast}0603$으로 나타났다. 결론적으로 P. gingivalis 열충격단백60은 제 2급 주요조직적합제-제한적으로 분해되고 전달되었으며 이 단백질이 공통적인 T-세포 및 B-세포 epitope를 가지면서 동시에 인체 열충격단백60과 교차성 B-세포 epitope을 가지면서 동맥경화증의 면역조절기능에 관여한다고 볼 수 있다.

키워드

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