Interferon regulatory factor-responsive elements in the RAD51 promoter (IRF-RE (RAD51))

The IRF-responsive DNA elements in the RAD51 promoter are specific regulatory sequences that facilitate the binding of Interferon Regulatory Factors (IRFs), most notably IRF1, to control the expression of the RAD51 gene (PubMed: 18467488). RAD51 is a central enzyme in the homologous recombination repair (HRR) pathway, which is responsible for the high-fidelity repair of DNA double-strand breaks (UniProt: P43351). The interaction between IRFs and these promoter elements represents a key regulatory node linking the innate immune response to DNA damage signaling. In oncological contexts, the upregulation of RAD51 through these elements can lead to enhanced DNA repair capacity, which often results in resistance to DNA-damaging chemotherapies and ionizing radiation (PubMed: 25605863). Conversely, the inhibition of this regulatory axis has been explored as a strategy to sensitize tumor cells to therapeutic stress. While these DNA elements are not traditional pharmacological targets themselves, they are critical for understanding the molecular mechanisms of chemoresistance and genomic stability. Targeting the transcription factors that interact with these elements, such as IRF1, remains a promising area for developing combinatorial cancer therapies.

Other names

IRF-binding sites in RAD51 promoterRAD51 IRF-REInterferon regulatory factor 1 binding siteRAD51 promoter IRF elements

Transcriptional regulation of RAD51 gene expression through IRF1 binding to promoter elements