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Skullcapflavone II inhibits osteoclastogenesis by regulating reactive oxygen species and attenuates the survival and resorption function of osteoclasts by modulating integrin signaling

Title
Skullcapflavone II inhibits osteoclastogenesis by regulating reactive oxygen species and attenuates the survival and resorption function of osteoclasts by modulating integrin signaling
Authors
Lee J.Son H.S.Lee H.I.Lee G.-R.Jo Y.-J.Hong S.-E.Kim N.Kwon M.Kim N.Y.Kim H.J.Lee Y.J.Seo E.K.Jeong W.
Ewha Authors
서은경정우진이공락
SCOPUS Author ID
서은경scopus; 정우진scopus
Issue Date
2019
Journal Title
FASEB journal : official publication of the Federation of American Societies for Experimental Biology
ISSN
1530-6860JCR Link
Citation
FASEB journal : official publication of the Federation of American Societies for Experimental Biology vol. 33, no. 2, pp. 2026 - 2036
Keywords
bone resorptionNrf2Rho GTPase
Publisher
NLM (Medline)
Indexed
SCI; SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
Many bone diseases, such as osteoporosis and rheumatoid arthritis, are attributed to an increase in osteoclast number or activity; therefore, control of osteoclasts has significant clinical implications. This study shows how skullcapflavone II (SFII), a flavonoid with anti-inflammatory activity, regulates osteoclast differentiation, survival, and function. SFII inhibited osteoclastogenesis with decreased activation of MAPKs, Src, and cAMP response element-binding protein (CREB), which have been known to be redox sensitive. SFII decreased reactive oxygen species by scavenging them or activating nuclear factor-erythroid 2-related factor 2 (Nrf2), and its effects were partially reversed by hydrogen peroxide cotreatment or Nrf2 deficiency. In addition, SFII attenuated survival, migration, and bone resorption, with a decrease in the expression of integrin β3, Src, and p130 Crk-associated substrate, and the activation of RhoA and Rac1 in differentiated osteoclasts. Furthermore, SFII inhibited osteoclast formation and bone loss in an inflammation- or ovariectomy-induced osteolytic mouse model. These findings suggest that SFII inhibits osteoclastogenesis through redox regulation of MAPKs, Src, and CREB and attenuates the survival and resorption function by modulating the integrin pathway in osteoclasts. SFII has therapeutic potential in the treatment and prevention of bone diseases caused by excessive osteoclast activity.-Lee, J., Son, H. S., Lee, H. I., Lee, G.-R., Jo, Y.-J., Hong, S.-E., Kim, N., Kwon, M., Kim, N. Y., Kim, H. J., Lee, Y. J., Seo, E. K., Jeong, W. Skullcapflavone II inhibits osteoclastogenesis by regulating reactive oxygen species and attenuates the survival and resorption function of osteoclasts by modulating integrin signaling.
DOI
10.1096/fj.201800866RR
Appears in Collections:
약학대학 > 약학과 > Journal papers
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