Reference - Detail
|Author||Kodama D, Hirai T, Kondo H, Hamamura K, Togari A.|
|Title||Bidirectional communication between sensory neurons and osteoblasts in an in vitro coculture system.|
Recent studies have revealed that the sensory nervous system is involved in bone metabolism. However, the mechanism of communication between neurons and osteoblasts is yet to be elucidated. In this study, we investigated the signaling pathways between sensory neurons of the dorsal root ganglion (DRG) and the osteoblast-like MC3T3-E1 cells using an in vitro coculture system. Our findings indicate that signal transduction from DRG-derived neurons to MC3T3-E1 cells is suppressed by antagonists of the AMPA receptor and the NK1 receptor. Conversely, signal transduction from MC3T3-E1 cells to DRG-derived neurons is suppressed by a P2X7 receptor antagonist. Our results suggest that these cells communicate with each other by exocytosis of glutamate, substance P in the efferent signal, and ATP in the afferent signal.
|MeSH||Adenosine Triphosphate / pharmacology Animals Bradykinin / pharmacology Calcium / metabolism Cell Communication* / drug effects Cell Line Coculture Techniques / methods* Exocytosis / drug effects Ganglia, Spinal / cytology Glutamic Acid / metabolism Humans Mice, Inbred BALB C Neurotransmitter Agents / metabolism Osteoblasts / cytology* Osteoblasts / drug effects Osteoblasts / metabolism Sensory Receptor Cells / cytology* Sensory Receptor Cells / drug effects Sensory Receptor Cells / metabolism Signal Transduction / drug effects Substance P / metabolism|
|Human and Animal Cells||MC3T3-E1(RCB1126)|