Protein Profiling of Human Nonpigmented Ciliary Epithelium Cell Secretome: The Differentiation Factors Characterization for Retinal Ganglion Cell line
Figure 2
Immunocytochemical analysis of Thy-1 and Brn-3b expression in RGC-5 cells differentiated by treatment with HNPE cell conditioned SF-medium. Staining with antibodies to the cell surface glycoprotein, Thy-1, have been commonly used as a marker to identify retinal ganglion cells. After cultivation with HNPE conditioned medium, RGC-5 cells have an enhanced Thy-1 expression, compared to the undifferentiated cells. RGC-5 cells without cultivation with HNPE conditioned medium express Brn-3b in a different pattern compared with treated RGC-5 cells. Specifically, Brn-3b has a nuclear localization in RGC-5 cells without cultivation with HNPE conditioned medium; however, upon treatment, RGC-5 cells express Brn-3b in a more punctate cytosolic manner.
