Cold shock domain-containing protein E1 (CSDE1)

Cold shock domain-containing protein E1 (CSDE1) is a highly conserved RNA-binding protein characterized by multiple cold shock domains (CSDs), enabling it to bind and regulate the fate of hundreds of transcripts. CSDE1 orchestrates mRNA stability and translation, often in cooperation with other RNA-binding proteins (e.g., PABPC1, STRAP), and serves as an adaptor for assembling regulatory complexes. Its biological functions are context-dependent and include promoting/repressing mRNA translation, stabilizing transcripts (e.g., c-FOS), and regulating cell proliferation, apoptosis, and stress responses. CSDE1 plays pivotal roles in cancer by controlling several hallmarks (proliferation, survival, invasiveness, etc.), as well as in cardiovascular disease by regulating LDLR mRNA decay, impacting cholesterol metabolism. Loss or dysfunction of CSDE1 impairs erythroid cell proliferation and differentiation, contributing to diseases suchs as Diamond Blackfan anemia. CSDE1 is under investigation as both a prognostic biomarker and a therapeutic target, particularly in oncology and metabolic diseases, though its broad molecular functions necessitate careful consideration of safety and specificity when designing targeted interventions[1][2][3][5][6][7].

Other names

UNRN-ras upstream gene proteinD1S155EKIAA0885NRUProtein UNRUpstream of NRAS

Drugs raising or lowering CSDE1 activity could modulate mRNA stability or translation of key target genes (e.g., lowering CSDE1 increases LDLR mRNA, reducing cholesterol)[7]. Indirect inhibitors/modulators may affect CSDE1’s RNA interactions, impacting cancer cell survival or cholesterol metabolism[2][7].