CSK and cancer: CSK regulates a wide variety of cellular functions, such as apoptosis, proliferation, cytoskeletal reorganization, cell migration, invasion, angiogenesis, mainly through the modulation of SFKs, while also being involved in preventing cancer progression, since SFKs have been associated with cell differentiation, cancer stage and development of metastases (Kim et al., 2009; Chen et al., 2014).