SOCS7 (suppressor of cytokine signaling 7) is a substrate-recognition component of the cullin-5-RING E3 ubiquitin ligase complex (ECS/CRL5), which mediates ubiquitination and proteasomal degradation of target proteins 1. SOCS7 recognizes phosphorylated proteins via its SH2 domain, promoting their ubiquitination 1. Primary functions include regulating reelin signaling by mediating DAB1 ubiquitination and degradation in developing cortex, essential for proper neuron positioning 2, and controlling insulin signaling through IRS1 degradation 1. SOCS7 inhibits prolactin, growth hormone, and leptin signaling by preventing STAT3 and STAT5 activation 3. Recent evidence reveals SOCS7's role in macrophage polarization: exosomal miR-146a and miR-92b-5p downregulate SOCS7, disrupting its interaction with STAT3 and promoting M2 macrophage polarization in gastric cancer 456. In high-grade serous ovarian carcinoma, decreased SOCS7 expression correlates with poor prognosis; SOCS7 suppresses tumorigenesis by mediating HuR ubiquitination and regulating FOXM1 expression 7. SOCS7 genetic variants show minimal impact on glucose homeostasis and type 2 diabetes risk 8, and SOCS7 polymorphisms lack association with psoriasis susceptibility 9.