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  • Title: Corilagin suppresses RANKL-induced osteoclastogenesis and inhibits oestrogen deficiency-induced bone loss via the NF-κB and PI3K/AKT signalling pathways.
    Author: Lu J, Ye C, Huang Y, Huang D, Tang L, Hou W, Kuang Z, Chen Y, Xiao S, Yishake M, He R.
    Journal: J Cell Mol Med; 2020 Sep; 24(18):10444-10457. PubMed ID: 32681612.
    Abstract:
    Over-activated osteoclastogenesis, which is initiated by inflammation, has been implicated in osteoporosis. Corilagin, a natural compound extracted from various medicinal herbaceous plants, such as Cinnamomum cassia, has antioxidant and anti-inflammatory activities. We found that Corilagin suppressed osteoclast differentiation in a dose-dependent manner, significantly decreased osteoclast-related gene expression and impaired bone resorption by osteoclasts. Moreover, phosphorylation of members of the nuclear factor-kappaB (NF-κB) and PI3K/AKT signalling pathways was reduced by Corilagin. In a murine model of osteoporosis, Corilagin inhibited osteoclast functions in vivo and restored oestrogen deficiency-induced bone loss. In conclusion, our findings suggested that Corilagin inhibited osteoclastogenesis by down-regulating the NF-κB and PI3K/AKT signalling pathways, thus showing its potential possibility for the treatment of osteoporosis.
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