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NTIS 바로가기생명과학회지 = Journal of life science, v.27 no.5 = no.205, 2017년, pp.501 - 508
민현영 (대구대학교 생명공학과) , 장원구 (대구대학교 생명공학과)
Bone morphogenetic proteins (BMPs) are multifunctional cytokines that play important roles in a variety of cellular functions. Among BMP family members, BMP2 efficiently promotes osteoblast differentiation through Smad-mediated runt-related transcription factor 2 (Runx2) expression. Several recent s...
핵심어 | 질문 | 논문에서 추출한 답변 |
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Bone morphogenetic proteins는 어떤 기능을 조절하는가? | Bone morphogenetic proteins (BMPs)는 다양한 세포기능을 조절하는 중요한 사이토카인 중 하나이다. 최근 BMP와 일주기 유전자들이 연관되어 있다는 연구결과들이 보고되고 있지만 조골세포에서 일주기 유전자인 Per1의 역할은 아직 명확하지 않다. | |
증가된 distal-less homeobox 5는 무엇을 유도하는가? | 조골세포(osteoblasts) 분화 과정에서 BMP2는 BMP수용체와 결합한 후, Smad1/5/8의 인산화를 유도하여 활성화시키고 Smad4와 결합된 복합체는 전사활성 인자로 작용하여 distal-less homeobox 5 (Dlx5)의 발현을 촉진한다. 증가된 Dlx5는 조골세포의 분화에 있어 핵심 전사 인자로 작용하는 Runx2의 발현을 유도한다[19, 20]. Runx2는 osteocalcin (OC), osteopontin, collagen typeⅠ과 같은 조골세포 분화 마커 유전자의 promoter에 결합하고 이러한 유전자들의 발현을 증가시킴으로써 조골세포의 분화를 촉진한다[17]. | |
골 형성 및 분해 대사는 무엇에 의해 조절되는가? | 골 형성 및 분해 대사는 다양한 호르몬, 사이토카인(cytokine)과 여러 전사 인자(transcription factor)에 의해 조절된다. Bone morphogenetic proteins (BMPs)는 배아발생, 세포의 성장과 분화부터 뼈의 성장과 골절의 회복과정까지 다양한 세포의 기능에서 중요한 역할을 하는 사이토카인이다[11, 22, 26]. |
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