Hypoxia inducible factor-1: a novel target for cancer therapy - PubMed (original) (raw)

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Hypoxia inducible factor-1: a novel target for cancer therapy

Vladimir E Belozerov et al. Anticancer Drugs. 2005 Oct.

Abstract

Hypoxia develops in the majority of solid tumors due to the inability of the existing vascular system to supply the growing tumor mass with adequate amounts of oxygen. A large body of clinical evidence suggests that intratumoral hypoxia correlates with the elevated aggressive behavior of cancer cells and their resistance to therapy, leading to poor patient prognoses. A heterodimeric transcription factor, hypoxia inducible factor-1 (HIF-1), has been shown to orchestrate a large number of molecular events required for the adaptation of tumor cells to hypoxia. Therefore, HIF-1 has become an attractive target for the development of anti-cancer drugs. Here, we highlight some of the recently developed small-molecule inhibitors of HIF-1 function. These drugs disrupt the HIF-1 signaling pathway through a variety of mechanisms, including the inhibition of HIF-1alpha protein synthesis, stabilization, nuclear translocation and HIF-1 transactivation of target genes.

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