High heterogeneity is characteristic of oncology diseases, often complicating the choice of optimal anticancer treatment. One cancer type may combine tumors differing in histogenesis, genetic lesions, and mechanism of cell transformation. Differences in the mechanism of cell malignant transformation result in specifics of cancer cell metabolism and sensitivity to various agents, including anticancer treatments. Hence, the molecular subtype of a tumor is essential to know for choosing the optimal therapeutic strategy. The review considers the role actin-associated proteins and tyrosine kinases, in particular, PDLIM4 and Src kinase, play in the formation of pathological signaling pathways.