TNS1 (tensin-1) is a cytoskeletal-associated protein that functions as a critical regulator of cell adhesion, migration, and mechanotransduction. TNS1 plays essential roles in focal adhesion formation and enhances RHOA activation, contributing to cell polarization and migration processes 1234. The protein is crucial for myofibroblast differentiation and extracellular matrix deposition 2. In mechanotransduction, TNS1 participates in an integrin-β1-tensin-1-YAP pathway that responds to matrix viscoelasticity changes, promoting cancer cell proliferation and invasion 5. TNS1 expression is regulated by various mechanisms including microRNA-mediated control (miR-942, miR-3154) and circular RNA stabilization 678. The protein shows significant clinical relevance across multiple diseases: it promotes platelet production through proplatelet formation in megakaryocytes 8, serves as a therapeutic target in vascular diseases where it prevents pathological smooth muscle cell phenotypic switching 79, and is involved in cancer progression through various signaling pathways 610. TNS1 functions as a checkpoint protein maintaining vascular smooth muscle cell contractile phenotype and preventing arterial remodeling 9.