Kinsenoside prevents ovariectomy-induced bone loss and suppresses osteoclastogenesis by regulating classical NF-κB pathways

H. B. Hsiao, H. Lin, J. B. Wu, W. C. Lin

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Kinsenoside is able to improve bone turnover rate in ovariectomized (OVX) mice. In vitro analysis shows that kinsenoside antagonizes osteoclast development and bone resorption. Introduction: Kinsenoside, the main active compound of the traditional Taiwanese herb Anoectochilus formosanus, has an antiinflammatory effect. This study investigates whether kinsenoside inhibits osteoporosis and osteoclastogenesis. Methods: OVX mice were used to examine the antiosteoporotic activity of kinsenoside. The trabecular bone microarchitecture was assessed by microcomputed tomography. In vitro experiments were performed to determine the mechanisms of the antiosteoporotic effects of kinsenoside. Results: Microcomputed tomography scanning showed that kinsenoside suppresses bone loss in OVX mice. Kinsenoside decreases plasma CTx concentration. Reverse transcription polymerase chain reaction (RT-PCR) analysis also showed that kinsenoside reduces the femoral mRNA expression of tartrate-resistant acid phosphatase (TRAP) and matrix metalloproteinase-9 (MMP-9). Kinsenoside inhibits osteoclast formation in bone marrow cells (BMs) and RAW 264.7 cells. Western blot was used to analyze osteoclast-associated signaling pathways in RAW 264.7 cells. Results show that kinsenoside does not inhibit IKK phosphorylation but suppresses the phosphorylation of IκBα and p65. Kinsenoside significantly inhibits the RANKL induction of IKK activity. Kinsenoside inhibits the RANKL-triggered nuclear translocations of NF-κB and nuclear factor of activated T cells c1 (NFATc1). RT-PCR was used to analyze osteoclast precursor fusion and resorption-associated gene expression in BMs. Kinsenoside inhibits the expression of cathepsin K (CAK), dendritic cell-specific transmembrane protein, MMP-9, and TRAP. Conclusions: Kinsenoside inhibits osteoclastogenesis from macrophages by attenuating RANKL-induced NF-κB and NFATc1 activities, which in turn, prevents bone loss from OVX mice.

Original languageEnglish (US)
Pages (from-to)1663-1676
Number of pages14
JournalOsteoporosis International
Volume24
Issue number5
DOIs
StatePublished - May 2013

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Ovariectomy
Osteogenesis
Bone and Bones
Osteoclasts
NFATC Transcription Factors
X-Ray Microtomography
Matrix Metalloproteinase 9
3-glucopyranosyloxybutanolide
Reverse Transcription
Phosphorylation
Cathepsin K
Polymerase Chain Reaction
Bone Remodeling
Bone Resorption
Thigh
Bone Marrow Cells
Dendritic Cells
Osteoporosis

Keywords

  • Kinsenoside
  • Osteoclastogenesis
  • Osteoporosis

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism

Cite this

Kinsenoside prevents ovariectomy-induced bone loss and suppresses osteoclastogenesis by regulating classical NF-κB pathways. / Hsiao, H. B.; Lin, H.; Wu, J. B.; Lin, W. C.

In: Osteoporosis International, Vol. 24, No. 5, 05.2013, p. 1663-1676.

Research output: Contribution to journalArticle

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