In somatotroph pituitary tumours, somatostatin analogue (SSA) therapy outcomes vary throughout the studies. We performed an analysis of cohort of patients with acromegaly from the Czech registry to identify new prognostic and predictive factors. Clinical data of patients were collected, and complex immunohistochemical assessment of tumour samples was performed (SSTR1-5, dopamine D2 receptor, E-cadherin, AIP). The study included 110 patients. In 31, SSA treatment outcome was evaluated. Sparsely granulated tumours (SGST) differed from the other subtypes in expression of SSTR2A, SSTR3, SSTR5 and E-cadherin and occurred more often in young. No other clinical differences were observed. Trouillas grading system showed association with age, tumour size and SSTR2A expression. Factors significantly associated with SSA treatment outcome included age, IGF1 levels, tumour size and expression of E-cadherin and SSTR2A. In the group of SGST, poor SSA response was observed in younger patients with larger tumours, lower levels of SSTR2A and higher Ki67. We observed no relationship with expression of other proteins including AIP. No predictive value of E-cadherin was observed when tumour subtype was considered. Multiple additional factors apart from SSTR2A expression can predict treatment outcome in patients with acromegaly.

• Klíčová slova
• PITNET, acromegaly, pituitary neoplasm, somatostatin receptor,
• MeSH
• akromegalie komplikace   genetika   metabolismus   MeSH
• biologické markery MeSH
• dospělí MeSH
• imunohistochemie MeSH
• kadheriny genetika   MeSH
• klinické rozhodování MeSH
• kombinovaná terapie MeSH
• lidé středního věku MeSH
• lidé MeSH
• management nemoci MeSH
• mladý dospělý MeSH
• nádory hypofýzy diagnóza   etiologie   terapie   MeSH
• prognóza MeSH
• protein - isoformy MeSH
• receptory somatostatinu genetika   metabolismus   MeSH
• regulace genové exprese * MeSH
• ROC křivka MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Názvy látek
• biologické markery MeSH
• kadheriny MeSH
• protein - isoformy MeSH
• receptory somatostatinu MeSH