Fig. 3.
Accumulation of ubiquitinated proteins and apoptosis are induced by loss of Nrf1 in neurons. (A) Nrf1 expression in Nrf1flox/flox;Cre-ERT2 neuronal cultures treated with DMSO or 4HT. Nrf1 mRNA levels were measured by quantitative RT-PCR. Data were normalized to the 18s rRNA; means ± SEM, n = 3. *P < 0.05. Inset: Western blot analysis of Nrf1 in DMSO and 4HT treated Nrf1flox/flox;Cre-ERT2 neuronal cells. (B) Quantitation of ubiquitin immunostaining in Nrf1flox/flox;Cre-ERT2 neuronal cultures at various days after treatment with DMSO or 4HT. (C) Quantitation of TUNEL labeling in Nrf1flox/flox;Cre-ERT2 neuronal cultures at various days after treatment with DMSO or 4HT.