Vimentin (VIM) is an intermediate filament protein with diverse cellular functions extending beyond its classical structural role. As a cytoskeletal component, VIM serves as a scaffold protein involved in cellular organization and acts as a molecular adaptor 1. VIM participates in regulating mRNA stability, particularly for type I collagen biosynthesis through cooperation with LARP6, and demonstrates roles in cellular responses to bacterial components and double-stranded RNA binding. In cancer biology, VIM expression is highly associated with aggressive phenotypes. In hepatocellular carcinoma, VIM-high macrophages promote tumor progression and immunosuppression by enhancing interleukin-1β secretion to suppress regulatory T cell activity 1. In triple-negative breast cancer, VIM participates in gene networks regulating cell migration, metastasis, chemoresistance, lipogenesis, senescence, and autophagy 2. VIM expression also correlates with epithelial-mesenchymal transition in colorectal cancer, though bacterial colonization can modulate its expression 3. In normal development, VIM is retained during pluripotent stem cell erythroid differentiation but normally disappears during mature erythrocyte development 4. Its degradation promotes terminal erythroid enucleation through enhanced nuclear polarization. Additionally, VIM overexpression occurs in centenarians alongside other stemness markers, potentially contributing to longevity-associated cellular plasticity 5. Clinically, VIM mutations associate with congenital cataracts 5.