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NTIS 바로가기Korean journal of clinical laboratory science : KJCLS = 대한임상검사과학회지, v.51 no.3, 2019년, pp.323 - 328
임희선 (호서대학교 생명보건대학 임상병리학과) , 이상인 (호서대학교 생명보건대학 임상병리학과) , 박상정 (호서대학교 생명보건대학 임상병리학과)
Tuberculosis, a chronic bacterial infection caused by Mycobacterium tuberculosis (MTB), differs in its status latency and activity because of the characteristics of MTB, immune status of the host, and genetic susceptibility. The host defense mechanism against MTB is caused mainly by interactions bet...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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결핵(Tuberculosis)은 무엇인가? | 결핵(Tuberculosis)은 Mycobacterium tuberculosis (MTB)에 의한 만성 감염성 질환으로, 매년 200만 명의 사람들이 사망하는 전 세계의 주요 질병 중 하나이다[1]. 결핵균(MTB)에 감염된 사람 중 대부분은 증상이 없는 잠복 성 감염이고, 이 중 일부는 임상증상을 보이는 활동성 결핵으로 진행된다. | |
결핵균(MTB)은 무엇인가? | 결핵균(MTB)은 숙주 세포 내에서 생존하고 숙주의 면역 기전에 대해 저항할 수 있는 주요한 병원균이다[17]. 이에 대해 숙주의 방어작용 중 T 세포가 매개하는 세포 성 면역 반응은 인간의 결핵균 감염을 통제하는 데 중요하다[18]. | |
CD44 유전자의 다형성이 결핵균에 대한 숙주세포의 면역기전 저하를 유발시키는 이유는 무엇인가? | 결핵균에 대한 숙주 방어 기전은 주로 대식세포, T 세포 및 수지상 세포 사이의 상호 작용에 기인한다. CD44는 결핵균에 감염되면 활성 T 세포에서 발현되며 림프구 이동을 조절한다. 또한 CD44는 ECM에 대한 백혈구의 부착을 매개하여 대식세포, CD4+ T cell 등을 폐로 불러모으는 역할을 한다. 따라서, CD44 유전자의 다형성은 결핵균에 대한 숙주세포의 면역기전 저하를 유발할 수 있다. |
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