SPOCK2 (SPARC, cwcv and kazal like domains proteoglycan 2) is an extracellular matrix glycoprotein that functions as a master regulator in cellular proliferation, migration, and differentiation processes 1. The protein participates in diverse steps of neurogenesis and binds calcium, serving as a metalloendopeptidase inhibitor with roles in extracellular matrix organization and cell-substrate adhesion regulation. SPOCK2 exhibits tissue-specific and context-dependent functions in disease pathogenesis. In pancreatic ductal adenocarcinoma, SPOCK2 expression is significantly downregulated through hypermethylation, and higher expression correlates with improved patient survival, suggesting a tumor suppressor role 2. Similarly, in lung adenocarcinoma, SPOCK2 is epigenetically suppressed by EZH2 and functions to inhibit proliferation, migration, and invasion 3. Conversely, in ovarian cancer, SPOCK2 promotes invasion and migration through interaction with ITGA3 and activation of FAK signaling pathways 4. In pancreatic β-cells, SPOCK2 controls proliferation of immature cells through MMP2 regulation, affecting the β-integrin-FAK-c-JUN pathway 5. The protein has emerged as a potential biomarker in various conditions including congenital pulmonary airway malformation 6 and sepsis-associated acute kidney injury, where it appears in distinct disease sub-phenotypes 7. These findings highlight SPOCK2's complex, context-dependent regulatory functions in both normal physiology and pathological conditions.