【摘 要】
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Transforming growth factor β plays a role in regulation of apoptosis in ClC-3 and the Smads signaling pathway, although the underlying mechanisms remain unclea
【机 构】
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Department of Ophthalmology, Second Hospital of Jilin University, Changchun 130000, Jilin Province,
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Transforming growth factor β plays a role in regulation of apoptosis in ClC-3 and the Smads signaling pathway, although the underlying mechanisms remain unclear. The present study determined possible signal transduction mechanisms based on CIC-3 expression, which accordingly affected apoptosis of retinal ganglion cells in a glutamate-induced retinal ganglion cell RGC-5 apoptosis model. Results revealed significantly increased cell survival rate and significantly decreased apoptosis rate following apoptosis of ClC-3 cDNA-transfected glutamate-induced retinal ganglion cells. Following inhibition of the ClC-3 chloride channel using RNAi technology, cell survival and apoptosis rates were reversed. In addition, expression of transforming growth factor β2, Smads2, Smads3, Smads4, and Smads7 increased to varying degrees. These results suggest that ClC-3 chloride channel plays a protective role in glutamate-induced apoptosis of retinal ganglion cells, and transforming growth factor β/Smads signal transduction pathways are involved in this process.
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