ISSN 1662-4009 (online)

ey0021.8-15 | New Hope | ESPEYB21

8.15. Metastatic pheochromocytoma and paraganglioma: somatostatin receptor 2 expression, genetics, and therapeutic responses

A Fischer , S Kloos , U Maccio , J Friemel , H Remde , M Fassnacht , C Pamporaki , G Eisenhofer , HJLM Timmers , M Robledo , SMJ Fliedner , K Wang , J Maurer , A Reul , K Zitzmann , N Bechmann , G Žygienė , S Richter , C Hantel , D Vetter , K Lehmann , H Mohr , NS Pellegata , M Ullrich , J Pietzsch , CG Ziegler , SR Bornstein , M Kroiss , M Reincke , K Pacak , AB Grossman , F Beuschlein , S Nolting

Brief Summary: This study explored the relationship between Somatostatin Receptor 2 (SSTR2) immunoreactivity and succinate dehydrogenase complex iron sulfur subunit B (SDHB) immunoreactivity, mutational status, and clinical behavior of paragangliomas (PPGLs), and evaluated SSTR-based therapies in metastatic PPGLs. The findings highlight SSTR2 expression as a novel biomarker for metastatic behavior in PCC, PGL and SDHB/ SDHx mutations. They also suggest that SSTR-based therapie...