Glutathione plays a key role in maintaining proper function and preventing oxidative stress in human cells. It can act as a scavenger for hydroxyl radicals, singlet oxygen, and various electrophiles. Reduced glutathione reduces the oxidized form of the enzyme glutathione peroxidase, which in turn reduces hydrogen peroxide (H2O2), a dangerously reactive species within the cell. In addition, it plays a key role in the metabolism and clearance of xenobiotics, acts as a cofactor in certain detoxifying enzymes, participates in transport, and regenerates antioxidants such and Vitamins E and C to their reactive forms. The ratio of GSSG/GSH present in the cell is a key factor in properly maintaining the oxidative balance of the cell, that is, it is critical that the cell maintains high levels of the reduced glutathione and a low level of the oxidized glutathione disulfide. This narrow balance is maintained by glutathione reductase, which catalyzes the reduction of GSSG to GSH.
Background References
1. Xu FL et al. SLC27A5 promotes sorafenib-induced ferroptosis in hepatocellular carcinoma by downregulating glutathione reductase. Cell Death Dis. 2023 Jan
2. Ehtiati S et al. Glutathione reductase system changes in HTLV-1 infected patients. Virusdisease. 2022 Mar
Western blot analysis of Glutathione Reductase on different lysates with Rabbit anti-Glutathione Reductase antibody (HA721989) at 1/2,000 dilution.
Lane 1: HepG2 cell lysate (20 µg/Lane) Lane 2: A549 cell lysate (20 µg/Lane) Lane 3: K-562 cell lysate (20 µg/Lane) Lane 4: Jurkat cell lysate (20 µg/Lane) Lane 5: Mouse liver tissue lysate (40 µg/Lane) Lane 6: Mouse brain tissue lysate (40 µg/Lane) Lane 7: Mouse kidney tissue lysate (40 µg/Lane) Lane 8: Rat lung tissue lysate (40 µg/Lane) Lane 9: Rat kidney tissue lysate (40 µg/Lane)
Predicted band size: 56 kDa Observed band size: 54 kDa
Exposure time: 10 seconds; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA721989) at 1/2,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
☑ Knockdown (KD)
Western blot analysis of Glutathione Reductase on different lysates with Rabbit anti-Glutathione Reductase antibody (HA721989) at 1/2,000 dilution.
Lane 1: HCT 116-si NT cell lysate Lane 2: HCT 116-si Glutathione Reductase cell lysate
Lysates/proteins at 10 µg/Lane.
Predicted band size: 56 kDa Observed band size: 54 kDa
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA721989) at 1/2,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
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