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immunohistochemical staining (intensity score of 3) for the ten molecular markers studied. Hsp90, TGFBR1, IGF1R, and SSTR5 (the strongest staining biomarkers for the largest number of NETs) were expressed in all tumors from 20 cases in which primary and metastatic
Department of Clinical Medicine and Gastroenterology, Service de Gastroentérologie, Service d'Anatomie Pathologique, INSERM U773, Service de Radiologie, Service d'Oncologie Bichat-Beaujon, St James's Hospital and Trinity College Dublin, James's Street, Dublin 8, Ireland
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Department of Clinical Medicine and Gastroenterology, Service de Gastroentérologie, Service d'Anatomie Pathologique, INSERM U773, Service de Radiologie, Service d'Oncologie Bichat-Beaujon, St James's Hospital and Trinity College Dublin, James's Street, Dublin 8, Ireland
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Department of Clinical Medicine and Gastroenterology, Service de Gastroentérologie, Service d'Anatomie Pathologique, INSERM U773, Service de Radiologie, Service d'Oncologie Bichat-Beaujon, St James's Hospital and Trinity College Dublin, James's Street, Dublin 8, Ireland
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aggressive GEP-NETs but their influence on therapy is unknown. Several putative molecular markers predicting either sensitivity or resistance to oncological therapeutics have been proposed. The multidrug resistance protein and other ABC transporters have well
Department of Oncology, Haukeland University Hospital, Bergen, Norway
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Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
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Department of Oncology, Haukeland University Hospital, Bergen, Norway
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Department of Oncology, Haukeland University Hospital, Bergen, Norway
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Department of Medical Radiation Physics, Lund University, Lund, Sweden
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Department of Oncology, St.Olavs Hospital, Trondheim, Norway
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Department of Clinical Medicine, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
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Department of Clinical Science, University of Bergen, Bergen, Norway
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Department of Oncology, Haukeland University Hospital, Bergen, Norway
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have associated microsatellite instability (MSI) with improved prognosis ( La Rosa et al. 2012 , Sahnane et al. 2015 ). However, molecular markers for classification, treatment selection and prognosis for HG GEP-NEN are generally lacking. Some
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EIF1AX gene mutations are reported in both benign and malignant thyroid tumors, with unclear outcomes when detected preoperatively. The aim of this study was to determine the features and outcomes of thyroid nodules with various types of mutation identified in cytologic (fine-needle aspiration) samples on preoperative ThyroSeq testing and with surgical outcomes. In this single-institution retrospective study of 31 consecutive patients, 77% were female and nodule size ranged from 1.5 to 9.4 cm with widely varying cytologic and TI-RADS ultrasound categorizations. Among two main mutational hotspots, 55% were located in exon 2 and 45% at the intron 5/exon 6 splice site. On histology, 45% of -positive nodules were cancer/noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) including 19% encapsulated follicular variant papillary thyroid carcinoma, 10% follicular carcinoma, 10% anaplastic carcinoma (ATC), and 7% NIFTP. Almost half (48%) of patients had one or more coexisting mutations, most frequently RAS. The prevalence of cancer/NIFTP was 80% for mutation with coexisting molecular alteration vs 13% with an isolated mutation (P = 0.0002). Cancer probability was associated with mutation type and was 64% for splice-site mutation and 29% for non-splice mutation (P = 0.075). All 3 nodules with EIF1AX+RAS+TERT+TP53 mutations were ATC. In summary, in this study, all nodules with an isolated non-splice mutation were benign, one-third of those with an isolated splice mutation were cancer, and most nodules with coexisting with RAS or other alterations were malignant. These findings suggest that clinical management decisions for patients with EIF1AX-mutant nodules should consider both the type of mutation and its co-occurrence with other genetic alterations.
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need for molecular markers The diagnosis of thyroid cancer is typically obtained through ultrasound examination and fine-needle aspiration (FNA) biopsy of suspicious nodules. Cytological examination of cells collected by FNA biopsy is the most reliable
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other candidate markers for a way forward. Molecular markers for chemotherapy response At the present time, no single predictive biological marker has become established in routine practice in breast cancer to assess clinical
Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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( Riker et al. 2008 , Ganepola et al. 2010 , Condello et al. 2019 ). In order to identify molecular markers to apply in the differential diagnosis of parathyroid tumors, with a particular focus on PC progression, we investigated a wide panel of
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mechanisms, including cross-activation by agents such as IGF-I ( Culig et al. 1994 ). Potential new molecular markers such as hepsin ( Rhodes et al. 2002 ) have been identified. These and other identified and novel genes implicated in the disease
Institut Cochin, Inserm, Department of Endocrinology, Université Paris Descartes, CNRS (UMR 8104), 75014 Paris, France
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Institut Cochin, Inserm, Department of Endocrinology, Université Paris Descartes, CNRS (UMR 8104), 75014 Paris, France
Institut Cochin, Inserm, Department of Endocrinology, Université Paris Descartes, CNRS (UMR 8104), 75014 Paris, France
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Institut Cochin, Inserm, Department of Endocrinology, Université Paris Descartes, CNRS (UMR 8104), 75014 Paris, France
Institut Cochin, Inserm, Department of Endocrinology, Université Paris Descartes, CNRS (UMR 8104), 75014 Paris, France
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et al . 1993 , Rainier et al . 1993 , Gicquel et al . 1997 ). Interestingly, it has been previously demonstrated that IGF2 expression could be used as a molecular marker for the diagnosis of ACC ( Gicquel et al . 2001 ). The IGF signaling pathway
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and/or RPFNA, there is a great deal of interest in supplementing morphologic interpretations with molecular markers ( Fabian et al. 2002 , Ljung et al. 2004 , Gornstein et al. 2004 , Sneige 2004 ). Simple assessment of ploidy has been