Would degrade Bcl second Two clones that were generated wildtype INrf2. The immunoblot analysis HBE4, A549, A549 A549 C 1 and C 2 is shown in Figure LY404039 7a. A549 cells, which showed the mutant protein enrichment INrf2G333C 2 and Bcl Nrf2, Bax and substantially no, relative to cells HBE4. Interestingly, C 1 and C 2 A549 clones wild-type and mutant proteins INrf2 Bcl 2 and reduced Nrf2 and increased Ht Bax, compared with A549 cells, the mutant alone. Immunpr zipitation Bcl 2 or INrf2 showed more or less a lack of interaction between mutant and Bcl INrf2G333C second Two A549 clones showed wild type INrf2 stabilized interaction between INrf2 and Bcl-2 proteins. Gem INrf2 interaction Bcl 2, DNA fragmentation in A549 cells etoposidemediated twice that of the C 2 A549 clone was lower.
t BHQ treatment, as expected, DNA fragmentation reduced in A549 cells C 2. Zus Tzlich showed A549 cells expressing endogenous mutant INrf2 exposed to UVB and DNA fragmentation g significantly compared to C 2 A549 cells expressing endogenous wild-type and mutant INrf2 cDNA derived lower. In addition, Erh hte A549 cells compared to cell survival when exposed to clone SP600125 C2 A549 drugs or radiotherapy. Additionally Tzlich we compared the survival of the cell to A549, A549 C 1, C 2, and A459 cells clonogenic assay cell survival after treatment of the cells with various concentrations of etoposide. The data show that A549 and A549 cells C 1, C 2 35 and 40% reduction FINISH survive in the cell, compared with A549 cells.
These data show that the same mutation in the region of reduced INrf2 DGR INrf2 interaction with Bcl 2, leads to a stabilization of the Bcl 2, reduced drug or UV / radiation DNA fragmentation induced by g, and the survival of the cell rdern f, . Discussion We have demonstrated that INrf2 interacts directly with Bcl 2 and second functions as an adapter protein for Cul3 RBX1 induced ubiquitination and degradation of Bcl 2 lysine17 residues of Bcl Domain mapping studies showed that the liquid surface The INrf2 DGR and BH2 Dom were ne of Bcl 2 is required for their interaction. Overexpression of INrf2 leads to the degradation of Bcl-2 and Bcl decreased 2: Bax heterodimers. Treatment of the cells overexpress INrf2 with etoposide Bax protein upregulated induced release of cytochrome c from mitochondria, caspase 3/7 Enables, and has led to an increased FITTINGS cell death by apoptosis.
In other words, the Erh Increase of apoptosis by Bcl-depleting INrf2 2 bef Promoted. On the other hand, is applied the antioxidant treatment INrf2: interaction Bcl 2, leads to a stabilization of the Bcl 2, increased interaction with Bcl Bax 2 and a decrease in apoptosis mediated cellular Ren etoposide. Together, these results concluded that INrf2 regulates cell death by apoptosis embroidered Lant second the anti-apoptotic protein Bcl It should be noted that INrf2 is known to bind PGAM5 that Bcl xL binds. 24 Consequently, the r INrf2 expected in the regulation of the Bcl xL by PGAM5 apoptosis also, however, remains unknown. The mechanism of dissociation of Bcl 2 INrf2 remains unknown. However, it is possible to change it oxidative modification / electrophilic INrf2C151 and phosphorylation of Bcl 2 for the dissociation of Bcl 2 required