Publications by authors named "I H Nikas"

Introduction: There is a strong rationale for targeting HER3, as HER3 contributes to tumorigenesis and treatment resistance. However, the prognostic role of HER3 and their association with immunoregulatory protein expression has not been established.

Methods: The main objective of this study was to investigate the prognostic role of HER3 expression and identify immunoregulatory marker expression according to HER3 status.

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Introduction: Defining the origin of metastatic cancer is crucial for establishing an optimal treatment strategy, especially when obtaining sufficient tissue from secondary malignancies is limited. While cytological examination is often used in this diagnostic setting, morphologic analysis alone often fails to differentiate metastases derived from the breast from other primaries. The hormone receptor, human epidermal growth factor receptor-2, gross cystic disease fluid protein 15, and mammaglobin immunohistochemistry are often used to diagnose metastatic breast cancer.

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Article Synopsis
  • * A proteomic analysis of 31 papillary urothelial lesions uncovered overlapping protein profiles for UP and PUC, with KRT18 identified as a potential diagnostic marker for UP.
  • * The study suggests that KRT18 could help differentiate UP from low-grade PUC, and also noted that some patients with UP may develop urothelial carcinoma later, indicating a risk for malignancy.
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The accurate diagnosis of papillary urothelial carcinoma (PUC) is frequently challenging due to benign mimickers. Other than morphology-based diagnostic criteria, reliable biomarkers for differentiating benign and malignant papillary urothelial neoplasms remain elusive, so we sought to discover new markers to address this challenge. We first performed tandem mass spectrometry-based quantitative proteomics using diverse papillary urothelial lesions, including PUC, urothelial papilloma (UP), inverted urothelial papilloma, and cystitis cystica.

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Context.—: Distinguishing metastatic carcinomas from mesotheliomas or reactive mesothelial cells in pleural, peritoneal, and pericardial effusions is a common diagnostic problem cytopathologists encounter.

Objective.

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