l-glutathione mitochondrial supplement Reduced 250 mg 60 caps by Montiff Quantum Glutathione Support - 60

Glutathione (GSH) metabolism plays a vital role in the GPX4-dependent antioxidant pathway, whereas CoQ regeneration serves as a cornerstone in non-GPX4 dependent antioxidant pathways ( Figure 2 2.2.1 The canonical GPX4-regulated ferroptosis pathway GPX4, a selenoprotein essential for cellular redox homeostasis, neutralizes PLOOHs on biological membranes by utilizing GSH as its obligate co-substrate ( - , a heterodimeric complex composed of Solute Carrier Family 7 Member 11 (SLC7A11) and Solute Carrier Family 3 Member 2 (SLC3A2), mediates cystine uptake in exchange for intracellular glutamate efflux ( - , encompassing targeted reduction of SLC7A11 levels, inhibition of SLC7A11 degradation and promotion of SLC7A11 expression, indicating that transporter XC - can determine the susceptibility to ferroptosis ( Paradoxically, upon GPX4 ablation, some cancer cell lineages remain resistant to ferroptosis revealing the existence of compensatory GPX4 independent defense mechanisms ( 2.2.2 GPX4-independent surveillance pathways Emerging research has established the Ferroptosis inhibitor protein 1 (FSP1)- Ubiquinone (CoQ) axis as a parallel antioxidant system that functions as a compensatory mechanism specifically in GPX4-deficient cellular contexts ( Recent studies have positioned GTP cyclohydroxylase-1 (GCH1) as another critical regulator of ferroptosis ( A recent study uncovered a mitochondria-localized antioxidant system mediated by Dihydroorotate Dehydrogenase (DHODH) capable of compensating for GPX4 deficiency by neutralizing lipid peroxidation within mitochondria ( In addition, the crosstalk between ferroptosis and other signaling pathways has only been extensively studied in cancer

Kusama, Y

(2020) Activation of the NRF2 pathway in Keap1-knockdown mice attenuates progression of age-related hearing loss, NPJ Aging Mech

However, more studies are needed for future studies