백작약 에탄올 추출물의 파골세포 분화 및 생성 억제 작용

• Published in: 동의생리병리학회지 Vol. 29; no. 1; pp. 51 - 57
• Main Authors: 박보라(Bora Park), 박근하(Geun Ha Park), 구동륜(Dong Ryun Gu), 고원민(Wonmin Ko), 김윤철(Youn-Chul Kim), 이승훈(Seoung Hoon Lee)
• Format: Journal Article
• Language: Korean
• Published: 한의병리학회 2015
• Subjects: 한의학; c-Fos; NFATc1; differentiation; osteoclast; Paeoniae Radix Alba
• ISSN: 1738-7698; 2288-2529; 2283-2529
• DOI: 10.15188/kjopp.2015.02.29.1.51

Bone destruction is a pathological symptom of some chronic inflammatory diseases, such as rheumatoid arthritis and periodontitis. Inflammation-induced bone loss of these diseases results from increased number and activity of osteoclasts. Paeoniae Radix Alba has been used in korean traditional medicine to treat disease including inflammation, gynecopathy and various pain. However, these effects have not been tested on osteoclasts, the bone resorbing cells that regulate bone metabolism. Here, we investigated the effects of Paeoniae Radix Alba ethanol extract (PRAE) on receptor activator of nuclear factor-kappa B ligand (RANKL)-mediated osteoclast differentiation and formation. Osteoclast differentiation and formation were measured by tartrate resistant acidic phosphatase (TRAP) staining and TRAP solution assay. The treatment of PRAE on bone marrow derived macrophages (BMMs), which is known as osteoclast precursor cells, inhibited osteoclast differentiation and formation in a dose-dependent manner. In addition, the expression of osteoclast differentiation marker genes was suppressed by PRAE treatment. This inhibitory effect of PRAE resulted from significant repression of c-Fos expression, and subsequent reduction of NFATc1 expression which was previously reported as a master transcription factor for osteoclastogenesis in vitro and in vivo. These results demonstrate that PRAE negatively regulates osteoclast differentiation and formation and suggest that PRAE can be used as a potent preventive or therapeutic candidate for various bone diseases, such as postmenopausal osteoporosis, periodontitis and rheumatoid arthritis.