TrxR1 or TXNRD1 (Thioredoxin Reductase 1)
Redox Control, Stress Tolerance, and Therapy Resistance
• Many studies have found that an elevated expression of TrxR1 in breast tumors, NSCLC, HCC correlates with increased tumor aggressiveness and a poorer prognosis.
-TrxR1 expression was elevated by >50 fold in FaDu and HeLa cells, and by >20 fold in SCC-1 compared to either MSK-Leuk1 or keratinocytes.
High TXNRD1 expression often associates with:
-Advanced stage
-Therapy resistance
-Reduced survival
TrxR1 Inhibition
-Collapses redox control
-Causes rapid ROS accumulation
-Triggers apoptosis, especially in high-stress tumors
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