An integrative multi omics analysis leveraging Mendelian randomization and subsequent experimental validation prioritizes glutathione S transferase mu 5 (GSTM5) as a genomic stability related gene and a therapeutic vulnerability to PLK1 inhibition in Excessive glutathione intake contributes to chemotherapy resistance in breast cancer: a propensity score matching analysis World Journal of Surgical Oncology Springer Nature Link Catabolism of extracellular glutathione supplies cysteine to support tumours Nature International Journal of Oncology Redox signaling by glutathione peroxidase 2 links vascular modulation to metabolic plasticity of breast cancer PNAS