{Reference Type}: Journal Article {Title}: Expression of integrin αvβ3 in medullary thyroid carcinoma. {Author}: de Vries LH;Lodewijk L;Pijnappel EW;van Diest PJ;Schepers A;Bonenkamp HJ;van Engen-van Grunsven IA;Kruijff S;van Hemel BM;Links TP;Nieveen van Dijkum EJ;Eeden SV;van Leeuwaarde RS;Valk GD;Keizer B;Borel Rinkes IH;Vriens MR; {Journal}: Future Oncol {Volume}: 0 {Issue}: 0 {Year}: 2024 Aug 5 {Factor}: 3.674 {DOI}: 10.1080/14796694.2024.2376511 {Abstract}: Aim: Tumor markers often remain elevated after intended curative resection of medullary thyroid carcinoma (MTC). The aim of this study was to determine the expression of αvβ3, a promising theranostics target, in MTC and its metastases. Materials & methods: Avβ3 expression was analyzed in 104 patients using a tissue microarray and correlated with clinicopathological variables and survival. Results: Cytoplasmic αvβ3 positivity was seen in 70 patients and was associated with lymph node metastases at time of initial surgery. Membranous positivity was considered positive in 30 patients and was associated with sporadic MTC. Conclusion: Avβ3 was expressed in the cytoplasm of 67% of MTC patients. Membranous expression, which is presumably most relevant for the theranostic use of αvβ3, was seen in 29%.
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