{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T04:38:53Z","timestamp":1787027933246,"version":"build-2736575974"},"reference-count":36,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2024,12,17]],"date-time":"2024-12-17T00:00:00Z","timestamp":1734393600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostics"],"abstract":"<jats:p>Background: Somatostatin receptors (SSTRs) are expressed in most neuroendocrine neoplasms, particularly in gastroenteropancreatic neuroendocrine tumours, and have been utilised as diagnostic markers and therapeutic targets. The radioiodinated somatostatin analogue 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid- Tyr3-octreotate (DOTATATE) has been employed for SSTR targeting for either diagnostic or therapeutic purposes depending on the labelling with 68Gallium or 177Lutetium, respectively. SSTR expression is reported in a subset of breast adenocarcinoma and breast neuroendocrine carcinomas; however, minimal knowledge exists regarding their expression in fibroepithelial (biphasic) breast lesions such as fibroadenoma and phyllodes tumours. Aggressive ends of the spectrum, i.e., \u201ccystosarcoma phyllodes\u201d, may present a management challenge with recurrences and metastases, and SSTRs could be a promising therapeutic target for these types of tumours. Methods: Gene and protein expressions of SSTRs in primary human fibroepithelial lesions of the breast are investigated using RT-PCR and immunoblotting. Localisation of the SSTR-positive cells was determined with immunohistochemistry and immunofluorescence. Results and Conclusions: Both fibroadenoma and phyllodes tumours express SSTRs. Immunohistochemical analyses suggested that this expression is in the stromal, not epithelial, component by demonstrating that SSTR stained in the areas overlapping with \u03b1-smooth muscle actin-positive myoepithelial cells around blood vessels and capillary structures. This study is the first in the literature to demonstrate SSTR positivity in mammary fibroepithelial neoplasms. Once validated, these findings may also have significant implications for managing the treatment of these tumours.<\/jats:p>","DOI":"10.3390\/diagnostics14242841","type":"journal-article","created":{"date-parts":[[2024,12,17]],"date-time":"2024-12-17T08:17:00Z","timestamp":1734423420000},"page":"2841","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["The Investigation of Somatostatin Receptors as a Potential Target in Breast Phyllodes Tumours"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4379-0332","authenticated-orcid":false,"given":"Hande","family":"S\u00fcer Mickler","sequence":"first","affiliation":[{"name":"Graduate School of Health Sciences, Ac\u0131badem Mehmet Ali Ayd\u0131nlar University, 34752 Istanbul, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-1829-0386","authenticated-orcid":false,"given":"Murat Mert","family":"Erkan","sequence":"additional","affiliation":[{"name":"Department of Surgery, School of Medicine, Ac\u0131badem Mehmet Ali Ayd\u0131nlar University, 34752 Istanbul, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,12,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1159\/000051852","article-title":"Somatostatin receptors","volume":"62","author":"Benali","year":"2000","journal-title":"Digestion"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"S2","DOI":"10.1016\/j.dld.2003.11.007","article-title":"Somatostatin receptors and regulation of cell proliferation","volume":"36","author":"Bousquet","year":"2004","journal-title":"Dig. 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