AIM：To investigate the effect of activating transcription factor-3（ATF3）-deletion on apoptosis of cultured retinal ganglion cells（RGCs）.METHODS：Three ATF3 siR NA（ATF3-rat-651, ATF3-rat-319, ATF3-rat-520） were ...AIM：To investigate the effect of activating transcription factor-3（ATF3）-deletion on apoptosis of cultured retinal ganglion cells（RGCs）.METHODS：Three ATF3 siR NA（ATF3-rat-651, ATF3-rat-319, ATF3-rat-520） were constructed, and were transiently transfected into RGC-5 cells. Quantitative real-time polymerase chain reaction（PCR） was used to examine ATF3 expression and the most effective ATF3 siR NA was selected for further studies. Flow cytometry was applied to investigate the effects of ATF3 deletion on RGC-5 apoptosis under elevated hydrostatic pressure. Quantitative realtime PCR and Western blot were performed to validate differentially expressed genes and proteins in ATF3-knockdown RGC-5 cells.RESULTS：ATF3 specific siR NA effectively down-regulated ATF3 expression and significantly inhibited cell apoptosis in RGC-5 cells. Quantitative real-time PCR and Western blot confirmed that ATF3 knockdown remarkably decreased Jun-B and increased c-Jun at both m RNA and protein levels in RGC-5 cells.CONCLUSION：ATF/cA MP-response element-binding family of transcription factors may be involved in the development of glaucoma and could be novel treatment targets for glaucoma.展开更多
文摘AIM：To investigate the effect of activating transcription factor-3（ATF3）-deletion on apoptosis of cultured retinal ganglion cells（RGCs）.METHODS：Three ATF3 siR NA（ATF3-rat-651, ATF3-rat-319, ATF3-rat-520） were constructed, and were transiently transfected into RGC-5 cells. Quantitative real-time polymerase chain reaction（PCR） was used to examine ATF3 expression and the most effective ATF3 siR NA was selected for further studies. Flow cytometry was applied to investigate the effects of ATF3 deletion on RGC-5 apoptosis under elevated hydrostatic pressure. Quantitative realtime PCR and Western blot were performed to validate differentially expressed genes and proteins in ATF3-knockdown RGC-5 cells.RESULTS：ATF3 specific siR NA effectively down-regulated ATF3 expression and significantly inhibited cell apoptosis in RGC-5 cells. Quantitative real-time PCR and Western blot confirmed that ATF3 knockdown remarkably decreased Jun-B and increased c-Jun at both m RNA and protein levels in RGC-5 cells.CONCLUSION：ATF/cA MP-response element-binding family of transcription factors may be involved in the development of glaucoma and could be novel treatment targets for glaucoma.
