Mechanism of serotonin-promoted synthesis of osteoblast type I collagen / 中华病理学杂志
Chinese Journal of Pathology
; (12): 509-512, 2015.
Article
in Chinese
| WPRIM (Western Pacific)
| ID: wpr-358981
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To explore the mechanism of serotonin-promoted osteoblast differentiation.</p><p><b>METHODS</b>Expression levels of collagen I and lysyl oxidase (LOX) in osteoblast were measured by RT-PCR after treated by (50, 100, 200 and 400 ng/L) serotonin. LOX siRNA effect was measured by Western blot, and protein levels of collagen I were determined by ELISA after treated by serotonin. Expression levels of Smad2 and Smad3 in osteoblasts were also measured by RT-PCR after treated by serotonin.Moreover, expression levels of LOX were measured by RT-PCR after Smad3 was knockout.</p><p><b>RESULTS</b>Serotonin promoted collagen I and LOX expression. The expression level of collagen I was significantly decreased by LOX siRNA. Furthermore, serotonin up-regulated the expression of Smad2 and Smad3 in osteoblasts, and the expression level of LOX was inhibited by Smad3 siRNA.</p><p><b>CONCLUSION</b>Serotonin promoted collagen I expression by activating Smads signaling pathway and up-regulating the LOX expression.</p>
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Osteoblasts
/
Pharmacology
/
Signal Transduction
/
Serotonin
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Cell Differentiation
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Up-Regulation
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Cells, Cultured
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Blotting, Western
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Collagen Type I
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RNA, Small Interfering
Limits:
Humans
Language:
Chinese
Journal:
Chinese Journal of Pathology
Year:
2015
Document type:
Article