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Targeting the DNA Repair Enzyme Polymerase θ in Cancer Therapy
Ist Teil von
Trends in cancer, 2021-02, Vol.7 (2), p.98-111
Ort / Verlag
United States
Erscheinungsjahr
2021
Quelle
MEDLINE
Beschreibungen/Notizen
Targeted cancer therapies represent a milestone towards personalized treatment as they function via inhibition of cancer-specific alterations. Polymerase θ (POLQ), an error-prone translesion polymerase, also involved in DNA double-strand break (DSB) repair, is often upregulated in cancer. POLQ is synthetic lethal with various DNA repair genes, including known cancer drivers such as BRCA1/2, making it essential in homologous recombination-deficient cancers. Thus, POLQ represents a promising target in cancer therapy and efforts for the development of POLQ inhibitors are actively underway with first clinical trials due to start in 2021. This review summarizes the journey of POLQ from a backup DNA repair enzyme to a promising therapeutic target for cancer treatment.