RT Journal Article T1 (Pro)renin Receptor Expression Increases throughout the Colorectal Adenoma-Adenocarcinoma Sequence and It Is Associated with Worse Colorectal Cancer Prognosis. A1 Beitia, Maider A1 Solano-Iturri, Jon Danel A1 Errarte, Peio A1 Calvete-Candenas, Julio A1 Loizate, Alberto A1 Etxezarraga, Mari Carmen A1 Sanz, BegoƱa A1 Larrinaga, Gorka K1 (pro)renin receptor K1 Wnt K1 adenoma K1 angiotensin K1 biomarkers K1 colorectal cancer K1 vATPase AB (Pro)renin receptor (PRR) is a protein that takes part in several signaling pathways such as Renin Angiotensin System and Wnt signalling. Its biological role has recently been related to cancer progression and in this study, we investigated its relevance in colorectal cancer (CRC). To that end, we analysed the immunohistochemical expression of PRR in adenomatous polyps and CRCs from the same patients (n = 42), and in primary tumours and nodal and liver metastases from advanced CRC patients (n = 294). In addition, the soluble fraction of PRR was measured by ELISA in plasma samples from 161 CRC patients. The results showed that PRR expression was gradually augmented along the uninvolved mucosa-adenoma-adenocarcinoma sequence. Besides, the stronger expression of PRR in primary tumours was markedly associated with local tumour extent and the onset of metastases. Moreover, PRR expression in both primary and distant metastases was associated with worse 5- and 10-year survival of CRC patients. Plasmatic PRR levels did not change with respect to controls and were not associated with CRC aggressiveness. These results suggest a key role of PRR in the development and progression of CRC and a potential use of this protein as a new prognostic biomarker and/or therapeutic target for this disease. SN 2072-6694 YR 2019 FD 2019-06-24 LK http://hdl.handle.net/10668/14174 UL http://hdl.handle.net/10668/14174 LA en DS RISalud RD Oct 24, 2025