Fig 4. Assessment of Nrf2 gene and protein in Müller cells exposed to Hhcy.
Relative Nrf2 mRNA expression levels in Müller cells (A) exposed to 50μM and 1mM Hcy for 3h and 8h; (B) Müller cells exposed to 50 μM Hcy for 1h, 3h, 6h, 8h and 18h, n=3, *p<0.05, **p<0.01 (Kruskal-Wallis and Dunn’s multiple comparison tests). (C) Western blot analysis of NRF2 protein levels in Müller cells exposed to 50μM Hcy for 3h and 20h, TBHQ is a positive inducer of Nrf2. (D) Quantification of data shown in panel F (ns = not significant, Krusal-Wallis and Dunn’s). (E) Detection of NRF2 in the nuclear and cytoplasmic fractions of Müller cells exposed 4h to 50 μM or 1 mM Hcy; HDAC1 was used as a marker for the nuclear fraction and GAPDH for the cytosolic fraction.