• Mayo Clinic proceedings · Nov 2022

    Renin Production by Juxtaglomerular Cell Tumors and Clear Cell Renal Cell Carcinoma and the Role of Angiotensin Signaling Inhibitors.

    • Sounak Gupta, Paige Nichols, Christine M Lohse, Farhad Kosari, Andrea G Kattah, Faye R Harris, Giannoula Karagouga, Rohit Mehra, Samson W Fine, Victor E Reuter, Loren Herrera-Hernandez, Andrew J Zganjar, Cameron J Britton, Aaron M Potretzke, Stephen A Boorjian, R Houston Thompson, Rafael E Jimenez, Bradley C Leibovich, Vesna D Garovic, John C Cheville, and Vidit Sharma.
    • Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN. Electronic address: gupta.sounak@mayo.edu.
    • Mayo Clin. Proc. 2022 Nov 1; 97 (11): 205020642050-2064.

    ObjectiveTo profile juxtaglomerular cell tumors (JXG) and histologic mimics by analyzing renin expression; to identify non-JXG renin-producing tumors in The Cancer Genome Atlas (TCGA) data sets; and to define the prevalence of hypertension (HTN) and patient outcomes with angiotensin signaling inhibitor (ASI) use in tumors of interest.Patients And MethodsThirteen JXGs and 10 glomus tumors (GTs), a histologic mimic, were evaluated for clinicopathologic features; TCGA data were analyzed to identify non-JXG renin-overexpressing tumors. An institutional registry was queried to determine the incidence of HTN, the use of ASIs in hypertensive patients, and the impact of ASIs on outcomes including progression-free survival (PFS) in a tumor type with high renin expression (clear cell renal cell carcinoma [CC-RCC] diagnosed between January 1, 2005, and December 31, 2012).ResultsWe found an association between renin production and HTN in JXG compared with GT. Analysis of TCGA data found that a subset of CC-RCCs overexpress renin relative to 29 other tumor types. Furthermore, analysis of our institutional registry revealed a high prevalence (64%) of HTN among 1203 patients treated with radical or partial nephrectomy for nonmetastatic CC-RCC. On multivariable Cox regression, patients with HTN treated with ASIs (34%) had improved PFS (hazard ratio, 0.76; 95% CI, 0.57 to 1.00; P=.05) compared with patients with HTN not treated with ASIs (30%).ConclusionThe identification of renin expression in a subset of CC-RCC may provide a biologic rationale for the high prevalence of HTN and improved PFS with ASI use in hypertensive patients with nonmetastatic CC-RCC.Copyright © 2022 Mayo Foundation for Medical Education and Research. Published by Elsevier Inc. All rights reserved.

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