FAK–Src Signaling Pathway

Q1: What is the FAK–Src signaling pathway?

The FAK–Src signaling pathway is a non-receptor tyrosine kinase cascade centered on focal adhesion kinase (FAK/PTK2) and Src, which transduces extracellular matrix and growth factor signals into intracellular responses.

Q2: How is FAK–Src signaling activated?

FAK is activated by integrin engagement or growth factor stimulation, leading to autophosphorylation (e.g., Tyr397), which recruits Src and forms an active signaling complex.

Q3: What cellular processes does FAK–Src regulate?

This pathway regulates cell adhesion, migration, proliferation, survival, and cytoskeletal remodeling, making it essential for tissue development and wound healing.

Q4: Why is FAK–Src important in cancer research?

Dysregulation of FAK–Src signaling promotes tumor growth, angiogenesis, and metastasis, and is therefore a major target in oncology studies.