1. Chitosan oligosaccharide promotes osteoclast formation by stimulating the activation of MAPK and AKT signaling pathways.
- Author
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Bai, Bing-Li, Xie, Zhong-Jie, Weng, She-Ji, Wu, Zong-Yi, Li, Hang, Tao, Zhou-Shan, Boodhun, Viraj, Yan, De-Yi, Shen, Zi-Jian, Tang, Jia-Hao, and Yang, Lei
- Subjects
CHITOSAN ,OLIGOSACCHARIDES ,TISSUE engineering ,OSTEOCLASTS ,MITOGEN-activated protein kinases ,THERAPEUTICS - Abstract
Chitosan Oligosaccharide (COS) has been widely used for the systemic treatment of clinical diseases such as bone tissue engineering. However, its influence on osteoclast formation, which plays a critical role in bone homeostasis, has never been investigated. The aim of this study was to investigate the effect of chitosan oligosaccharide on differentiation of osteoclast. Using cell counting kit-8, tartrate-resistant acid phosphatase staining, reverse transcription‑quantitative polymerase chain reaction assay and western blot analysis, we demonstrated that chitosan oligosaccharide cannot inhibit RANKL-induced osteoclast precursor proliferation but does promote osteoclast differentiation by stimulating the activation of p38/mitogen-activated protein kinase (MAPK), c-Jun N-terminal kinase (JNK)/MAPK, extracellular signal-regulated kinase (ERK)/MAPK and protein kinase B (AKT) without affecting nuclear factor kappaB (NF-kB) signaling pathways. Based on the promoting effect of chitosan oligosaccharide on osteoclast differentiation, we suggest that this property of chitosan oligosaccharide may have potential detrimental effect on bone homeostasis. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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