ABLIM1 (actin binding LIM protein 1) is a cytoskeletal protein that primarily functions as an actin-binding scaffold protein involved in cellular migration, proliferation, and cytoskeletal organization 1. The protein regulates actin polymerization and interacts with F-actin filaments, playing crucial roles in lamellipodium formation and stress fiber assembly 2. ABLIM1 functions through phosphorylation-dependent mechanisms, with Rictor-mediated phosphorylation at Ser214 and Ser431 residues controlling actin polymerization and MKL1 signaling pathways 2. Recent studies have identified ABLIM1 as a novel ubiquitin E3 ligase, with catalytic activity residing in its 402-778aa domain rather than its LIM domains 3. In disease contexts, ABLIM1 exhibits tissue-specific and cancer-type-dependent roles. It acts as a tumor suppressor in glioblastoma, where higher expression correlates with better survival 4, but promotes oncogenic functions in colorectal cancer through NF-κB/CCL-20 signaling activation 3 and osteosarcoma via DCC-mediated PI3K/AKT pathway activation 5. ABLIM1 also negatively regulates osteoclastogenesis by controlling cell migration and fusion 1. Clinically, ABLIM1 serves as a potential biomarker for cholangiocarcinoma differentiation 6 and represents an autoantigen in progressive pulmonary fibrosis 7.