SRF and neoplasm: The family of Myocardin‐related transcription factors (MRTFs) function as co‐activators of serum response factor (SRF) that contribute to the transcriptional regulation of genes involved in tumour formation and metastasis, cardiac and smooth muscle development, and skeletal muscle metabolism and regeneration via binding to a conserved CArG box sequence (CC(A/T)6GG) in the promoter region.19, 20, 21, 22