RT Journal Article T1 Quantitative Analysis of Somatostatin and Dopamine Receptors Gene Expression Levels in Non-functioning Pituitary Tumors and Association with Clinical and Molecular Aggressiveness Features. A1 Flores-Martinez, Álvaro A1 Venegas-Moreno, Eva A1 Dios, Elena A1 Remón-Ruiz, Pablo A1 Gros-Herguido, Noelia A1 Vázquez-Borrego, M Carmen A1 Madrazo-Atutxa, Ainara A1 Japón, Miguel A A1 Kaen, Ariel A1 Cárdenas-Valdepeñas, Eugenio A1 Roldán, Florinda A1 Castaño, Justo P A1 Luque, Raúl M A1 Cano, David A A1 Soto-Moreno, Alfonso K1 dopamine receptor K1 invasion K1 non-functioning pituitary tumors K1 pituitary tumor K1 somatostatin receptor AB The primary treatment for non-functioning pituitary tumors (NFPTs) is surgery, but it is often unsuccessful. Previous studies have reported that NFPTs express receptors for somatostatin (SST1-5) and dopamine (DRDs) providing a rationale for the use of dopamine agonists and somatostatin analogues. Here, we systematically assessed SST1-5 and DRDs expression by real-time quantitative PCR (RT-qPCR) in a large group of patients with NFPTs (n = 113) and analyzed their potential association with clinical and molecular aggressiveness features. SST1-5 expression was also evaluated by immunohistochemistry. SST3 was the predominant SST subtype detected, followed by SST2, SST5, and SST1. DRD2 was the dominant DRD subtype, followed by DRD4, DRD5, and DRD1. A substantial proportion of NFPTs displayed marked expression of SST2 and SST5. No major association between SSTs and DRDs expression and clinical and molecular aggressiveness features was observed in NFPTs. SN 2077-0383 YR 2020 FD 2020-09-22 LK https://hdl.handle.net/10668/27911 UL https://hdl.handle.net/10668/27911 LA en DS RISalud RD Apr 7, 2025