期刊
CELLS & DEVELOPMENT
卷 174, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.cdev.2023.203836
关键词
Sonic Hedgehog; Cyclopamine; Inflammation; Anti-inflammatory; Inflammasome; ASC; TGF ?; TNF ?; Osteoblast
The cellular events of bone maintenance, remodeling, and repair have their origins in embryonic bone production. Shh signaling plays a crucial role in bone development by modifying osteoblast activity. It is important to investigate its association with nuclear control for future applications.
It is known that cellular events underlying the processes of bone maintenance, remodeling, and repair have their basis in the embryonic production of bone. Shh signaling is widely described developing important morphoge-netic control in bone by modifying the activity of osteoblast. Furthermore, identifying whether it is associated with the modulation of nuclear control is very important to be the basis for further applications. Experimentally, osteoblasts were exposed with cyclopamine (CICLOP) considering up to 1 day and 7 days, here considered an acute and chronic responses respectively. Firstly, we have validated the osteogenic model in vitro by exposing the osteoblasts to classical differentiating solution up to 7 days to allow the analysis of alkaline phosphatase and mineralization. Conversely, our data shows that differentiating osteoblasts present higher activity of inflammasome-related genes, while Shh signaling members were lower, suggesting a negative feedback between them. Thereafter, to better know about the role of Shh signaling on this manner, functional assays using CICLOP (5 mu M) were performed and the data validates the previously hypothesis that Shh represses inflammasome related genes activities. Altogether, our data supports the anti-inflammatory effect of Shh signaling by sup-pressing Tnf alpha, Tgf beta and inflammasome related genes during osteoblast differentiation, and this comprehension might support the understanding the molecular and cellular mechanisms related in bone regeneration by reporting molecular-related osteoblast differentiation.
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