CASS4 (Cas Scaffolding Protein Family Member 4): CASS4 is a member of the CAS family of scaffolding proteins, involved in integrin signalling and cell migration. It plays a crucial role in the dynamic reorganisation of the cytoskeleton, facilitating cell movement and invasion. CASS4’s involvement in signalling pathways related to cell migration and its association with the extracellular matrix make it important in cancer metastasis and immune cell function, highlighting its role in cellular dynamics and disease progression.