Beneficial effect of pristimerin against the development of osteoporosis in ovariectomy-induced osteoporosis rats by the RANKL/TRAF6/NF-κB pathway
Introduction Osteoporosis is a major cause of bone fracture in post-menopausal women. We evaluated the effects of pristimerin treatment on ovariectomy-induced osteoporosis, and its possible molecular mechanism. Material and methods Rats were ovariectomised and biochemical markers of bone formation...
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| Format: | Article |
| Language: | English |
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Termedia Publishing House
2019-07-01
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| Series: | Archives of Medical Science |
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| Online Access: | https://www.archivesofmedicalscience.com/Beneficial-effect-of-pristimerin-against-the-development-of-osteoporosis-in-ovariectomy,109853,0,2.html |
| _version_ | 1827620373345075200 |
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| author | Wei Xu Xiaodong Zhu Chao Chen Ruixi Hu Yifan Li Ruijun Xu Zhikun Li |
| author_facet | Wei Xu Xiaodong Zhu Chao Chen Ruixi Hu Yifan Li Ruijun Xu Zhikun Li |
| author_sort | Wei Xu |
| collection | DOAJ |
| description | Introduction
Osteoporosis is a major cause of bone fracture in post-menopausal women. We evaluated the effects of pristimerin treatment on ovariectomy-induced osteoporosis, and its possible molecular mechanism.
Material and methods
Rats were ovariectomised and biochemical markers of bone formation were determined from serum samples. The microarchitectures of bone tissues were analyzed via micro-CT scans and Western blotting assays. The cytotoxic effects of pristimerin, the differentiation of osteoclasts, and bone reabsorption were evaluated in vitro using RAW 264.7 cells.
Results
Treatment with pristimerin attenuated changes in markers of bone formation and reabsorption such as creatine kinase (CK), alkaline phosphatase (ALP), tartrate-resistant acid phosphatase (TRAP), collagen type I fragments (CTX), bone Gla-protein (BGP), and osteocalcin (OC) in the serum of ovariectomised rats. It also appeared to restore the microarchitecture of bone tissue. The expression levels of TNF receptor-associated factor 6 (TRAF-6), nuclear factor k light chain enhancer of activated B cells (NF-κB p65), and receptor activator of nuclear factor-κB ligand (RANKL) protein were significantly lower, while those of Akt and PI3K were significantly higher, in the bone tissues of the pristimerin-treated group than in negative controls. Pristimerin had no cytotoxic effect on RAW 264.7 cells and reduced the differentiation of osteoclasts, bone reabsorption, and translocation of p65 in RANKL-stimulated RAW 264.7 cells in vitro .
Conclusions
Pristimerin reduces the effects of osteoporosis by restoring the altered RANKL/TRAF-6/NF-κB pathway in ovariectomised rats. |
| first_indexed | 2024-03-09T10:46:34Z |
| format | Article |
| id | doaj.art-7e241f14c8db44cfa657095480b70a19 |
| institution | Directory Open Access Journal |
| issn | 1734-1922 1896-9151 |
| language | English |
| last_indexed | 2024-03-09T10:46:34Z |
| publishDate | 2019-07-01 |
| publisher | Termedia Publishing House |
| record_format | Article |
| series | Archives of Medical Science |
| spelling | doaj.art-7e241f14c8db44cfa657095480b70a192023-12-01T09:59:22ZengTermedia Publishing HouseArchives of Medical Science1734-19221896-91512019-07-011861650165810.5114/aoms.2019.86816109853Beneficial effect of pristimerin against the development of osteoporosis in ovariectomy-induced osteoporosis rats by the RANKL/TRAF6/NF-κB pathwayWei Xu0Xiaodong Zhu1Chao Chen2Ruixi Hu3Yifan Li4Ruijun Xu5Zhikun Li6Department of Orthopedics, Tong Ren Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, ChinaDepartment of Orthopedics, Tong Ren Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, ChinaDepartment of Orthopedics, Tong Ren Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, ChinaDepartment of Orthopedics, Tong Ren Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, ChinaDepartment of Orthopedics, Tong Ren Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, ChinaDepartment of Orthopedics, Tong Ren Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, ChinaDepartment of Orthopedics, Tong Ren Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, ChinaIntroduction Osteoporosis is a major cause of bone fracture in post-menopausal women. We evaluated the effects of pristimerin treatment on ovariectomy-induced osteoporosis, and its possible molecular mechanism. Material and methods Rats were ovariectomised and biochemical markers of bone formation were determined from serum samples. The microarchitectures of bone tissues were analyzed via micro-CT scans and Western blotting assays. The cytotoxic effects of pristimerin, the differentiation of osteoclasts, and bone reabsorption were evaluated in vitro using RAW 264.7 cells. Results Treatment with pristimerin attenuated changes in markers of bone formation and reabsorption such as creatine kinase (CK), alkaline phosphatase (ALP), tartrate-resistant acid phosphatase (TRAP), collagen type I fragments (CTX), bone Gla-protein (BGP), and osteocalcin (OC) in the serum of ovariectomised rats. It also appeared to restore the microarchitecture of bone tissue. The expression levels of TNF receptor-associated factor 6 (TRAF-6), nuclear factor k light chain enhancer of activated B cells (NF-κB p65), and receptor activator of nuclear factor-κB ligand (RANKL) protein were significantly lower, while those of Akt and PI3K were significantly higher, in the bone tissues of the pristimerin-treated group than in negative controls. Pristimerin had no cytotoxic effect on RAW 264.7 cells and reduced the differentiation of osteoclasts, bone reabsorption, and translocation of p65 in RANKL-stimulated RAW 264.7 cells in vitro . Conclusions Pristimerin reduces the effects of osteoporosis by restoring the altered RANKL/TRAF-6/NF-κB pathway in ovariectomised rats.https://www.archivesofmedicalscience.com/Beneficial-effect-of-pristimerin-against-the-development-of-osteoporosis-in-ovariectomy,109853,0,2.htmlpristimerinovariectomyraw 264.7 cellsosteoporosisosteoclast |
| spellingShingle | Wei Xu Xiaodong Zhu Chao Chen Ruixi Hu Yifan Li Ruijun Xu Zhikun Li Beneficial effect of pristimerin against the development of osteoporosis in ovariectomy-induced osteoporosis rats by the RANKL/TRAF6/NF-κB pathway Archives of Medical Science pristimerin ovariectomy raw 264.7 cells osteoporosis osteoclast |
| title | Beneficial effect of pristimerin against the development of osteoporosis in ovariectomy-induced osteoporosis rats by the RANKL/TRAF6/NF-κB pathway |
| title_full | Beneficial effect of pristimerin against the development of osteoporosis in ovariectomy-induced osteoporosis rats by the RANKL/TRAF6/NF-κB pathway |
| title_fullStr | Beneficial effect of pristimerin against the development of osteoporosis in ovariectomy-induced osteoporosis rats by the RANKL/TRAF6/NF-κB pathway |
| title_full_unstemmed | Beneficial effect of pristimerin against the development of osteoporosis in ovariectomy-induced osteoporosis rats by the RANKL/TRAF6/NF-κB pathway |
| title_short | Beneficial effect of pristimerin against the development of osteoporosis in ovariectomy-induced osteoporosis rats by the RANKL/TRAF6/NF-κB pathway |
| title_sort | beneficial effect of pristimerin against the development of osteoporosis in ovariectomy induced osteoporosis rats by the rankl traf6 nf κb pathway |
| topic | pristimerin ovariectomy raw 264.7 cells osteoporosis osteoclast |
| url | https://www.archivesofmedicalscience.com/Beneficial-effect-of-pristimerin-against-the-development-of-osteoporosis-in-ovariectomy,109853,0,2.html |
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