WIPF2 (WAS/WASL interacting protein family member 2) is a critical regulator of actin cytoskeleton dynamics and cellular motility processes. The protein functions primarily through interactions with the Arp2/3 complex and N-WASP to facilitate actin nucleation and reorganization 1. WIPF2 plays essential roles in pathogen internalization, as demonstrated by its requirement for Aspergillus fumigatus conidia uptake by airway epithelial cells, where it transiently localizes to sites of pathogen binding 1. The protein is also crucial for Shigella flexneri actin-based motility and cell-to-cell spread, promoting N-WASP recruitment and activation at bacterial poles 2. In cancer biology, WIPF2 contributes to invadopodium maturation and degradative activity in breast cancer cells, working coordinately with WIP to control cancer cell invasion 3. The gene is subject to post-transcriptional regulation through microRNA-mediated mechanisms, with alternative splicing in the 3'UTR creating transcripts susceptible to miRNA146a regulation 4. WIPF2 expression is dysregulated in various diseases, including hepatocellular carcinoma and atherosclerosis, where it participates in regulatory axes involving long non-coding RNAs and microRNAs 56. Additionally, WIPF2 serves as a regulator of vimentin expression and is associated with breast cancer cell migration and invasion 7.