NET1 (neuroepithelial cell transforming 1) functions as a guanine nucleotide exchange factor (GEF) that specifically activates RhoA and RhoB GTPases, playing critical roles in cancer progression and tissue homeostasis 12. The protein promotes oncogenic phenotypes including cell proliferation, migration, invasion, and chemoresistance across multiple cancer types 345. NET1 expression is upregulated in various cancers including hepatocellular carcinoma, pancreatic ductal adenocarcinoma, and acute lymphoblastic leukemia, where high expression correlates with poor prognosis and reduced survival 675. Mechanistically, NET1 regulates diverse signaling pathways including Akt signaling and controls actin cytoskeletal organization, transcription, and DNA damage responses 63. In normal physiology, NET1 mRNA localizes to the dermal-epidermal junction where it influences tissue organization through RhoA-mediated regulation of keratinocyte-matrix connections 2. The protein represents a potential therapeutic target, as disrupting RhoA/NET1 interactions can inhibit cancer cell functions, and its expression can be regulated by microRNAs such as miR-206 15. NET1's role in entosis-mediated cancer progression further highlights its importance in tumor heterogeneity and metastasis 7.