Abstract

Malignant pleural effusion (MPE) is a common complication of many tumor types, arising at the onset of terminal cancer with a median survival of 3-12 months. Herein, we have characterized and evaluated the activity of thiostrepton (TS) on malignant and immune cell types present in MPE from patients diagnosed with primary lung, breast, prostate, pancreatic and ovarian cancers. TS targets mitochondrial peroxiredoxin 3 (PRX3) and disrupts redox homeostasis preferentially in malignant tissues, presenting a promising therapeutic approach currently under investigation in the MITOPE clinical trial.

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