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Published in: BMC Complementary Medicine and Therapies 1/2020

01-12-2020 | Osteoporosis | Research article

Chaenomelis fructus inhibits osteoclast differentiation by suppressing NFATc1 expression and prevents ovariectomy-induced osteoporosis

Authors: Minsun Kim, Ho-Seok Kim, Jae-Hyun Kim, Eun-Young Kim, Bina Lee, Sung Yub Lee, Jae-Yun Jun, Min Beom Kim, Youngjoo Sohn, Hyuk-Sang Jung

Published in: BMC Complementary Medicine and Therapies | Issue 1/2020

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Abstract

Background

Osteoporosis is related to the number and activity of osteoclasts. The goal of the present study was to demonstrate the effect of Chaenomelis Fructus (CF) on osteoclastogenesis and its mechanism of bone loss prevention in an OVX-induced osteoporosis model.

Methods

Osteoclasts were induced by RANKL in RAW 264.7 cells. TRAP assay was performed to measure the inhibitory effect of CF on osteoclast differentiation. Then, Expression of nuclear factor of activated T-cells (NFATc1), c-Fos which are essential transcription factors in osteoclastogenesis were detected using western blot and RT-PCR. The osteoclast-related markers were measured by RT-PCR. Moreover, the ability of CF to inhibit bone loss was researched by ovariectomized (OVX)-induced osteoporosis.

Results

Cell experiments showed that CF inhibited osteoclast differentiation and its function. Immunoblot analyses demonstrated that CF suppressed osteoclastogenesis through the NFATc1 and c-Fos signaling pathways. RT-PCR determined that CF inhibited osteoclast-related markers, such as tartrate-resistant acid phosphatase (TRAP), cathepsin K (CTK), osteoclast-associated immunoglobulin-like receptor (OSCAR), ATPase H+ Transporting V0 Subunit D2 (ATP6v0d2) and carbonic anhydrase II (CA2). In animal experiments, CF showed an inhibitory effect on bone density reduction through OVX. Hematoxylin and eosin (H&E) staining analysis data showed that CF inhibited OVX-induced trabecular area loss. TRAP staining and immunohistochemical staining analysis data showed that CF displayed an inhibitory effect on osteoclast differentiation through NFATc1 inhibition in femoral tissue.

Conclusion

Based on the results of in vivo and in vitro experiments, CF inhibited the RANKL-induced osteoclasts differentiation and its function and effectively ameliorated OVX-induced osteoporosis rats.
Appendix
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Metadata
Title
Chaenomelis fructus inhibits osteoclast differentiation by suppressing NFATc1 expression and prevents ovariectomy-induced osteoporosis
Authors
Minsun Kim
Ho-Seok Kim
Jae-Hyun Kim
Eun-Young Kim
Bina Lee
Sung Yub Lee
Jae-Yun Jun
Min Beom Kim
Youngjoo Sohn
Hyuk-Sang Jung
Publication date
01-12-2020
Publisher
BioMed Central
Published in
BMC Complementary Medicine and Therapies / Issue 1/2020
Electronic ISSN: 2662-7671
DOI
https://doi.org/10.1186/s12906-020-2841-9

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