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Emerging role for the Serum Response Factor (SRF) as a potential therapeutic target in cancer
Haleema Azam1,2, Lisa Pierro1,2, Martina Reina1,2
1Cancer Biology and Therapeutics Laboratory, UCD Conway Institute, University College Dublin, Belfield, Dublin, Ireland.
Introduction:
The Serum Response Factor (SRF) is a transcription factor involved in three hallmarks of cancer: the promotion of cell proliferation, cell death resistance and invasion and metastasis induction. Many studies have demonstrated a leading role in the development and progression of multiple cancer types, thus highlighting the potential of SRF as a prognostic biomarker and therapeutic target, especially for cancers with poor prognosis.
Areas Covered:
This review examines the role of SRF in several cancers in promoting cellular processes associated with cancer development and progression. SRF co-factors and signaling pathways are discussed as possible targets to inhibit SRF in a tissue and cancer-specific way. Small-molecule inhibitors of SRF, such as the CCGs series of compounds and lestaurtinib, which could be used as cancer therapeutics, are also discussed.
Expert Opinion:
Targeting of SRF and its co-factors represents a promising therapeutic approach. Further understanding of the molecular mechanisms behind the action of SRF could provide a pipeline of novel molecular targets and therapeutic combinations for cancer. Basket clinical trials and the use of SRF immunohistochemistry as companion diagnostics will help testing of these new targets in patients.
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