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Curr Opin Pharmacol. 2007 Aug;7(4):392-7. Epub 2007 Jul 3.

Thioredoxin signaling as a target for cancer therapy.

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Department of Experimental Therapeutics, MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030-4009, USA.


Thioredoxin (Trx) family members play critical roles in the regulation of cellular redox homeostasis. Cancer cells exist in a stressed environment and rely on the Trxs for protection against stress-disregulated redox signaling. The most extensively studied member of the family is Trx-1 whose levels are increased in many human cancers most likely in direct response to stress. Trx-1 contributes to many of the hallmarks of cancer including increased proliferation, resistance to cell death and increased angiogenesis. Trx-1 is a validated cancer drug target associated with aggressive tumor growth, resistance to standard therapy and decreased patient survival. A surrogate target for Trx-1 may be thioredoxin reductase (TR). Drugs that inhibit Trx-1 and TR are in clinical development with early promising results.

[Indexed for MEDLINE]

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