Detection of EWS/FLI-1 fusion in non-Ewing soft tissue tumors
| Autor: | Trancău, IO, Huică, R, Surcel, M, Munteanu, A, Ursaciuc, C |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Adult
Male EWS/FLI-1 fusion Oncogene Proteins Fusion Proto-Oncogene Protein c-fli-1 Soft Tissue Neoplasms Sarcoma Ewing Middle Aged Real-Time Polymerase Chain Reaction soft tissue tumors Fluorescence Gene Expression Regulation Neoplastic genomic investigation Humans Female Case Presentations RNA-Binding Protein EWS Aged |
| Zdroj: | Journal of Medicine and Life |
| ISSN: | 1844-3117 1844-122X |
| Popis: | Objectives: EWS/FLI-1 fusion mainly appears in Ewing’s sarcoma or the primitive neuroectodermal tumors and represents a genomic marker for these tumors. However, it can appear with lower frequency in other soft tissue tumors. The paper investigates the presence of EWS/FLI-1 fusion in clinically diagnosed sarcoma belonging to different non-Ewing connective tissue tumors in order to search for a possible new biomarker valuable for investigators. Methodology: 20 patients with soft tissue tumors, who underwent surgery, were tested. Intra-operative samples of normal and tumor tissue were collected for histopathological diagnosis and genetics determinations. The patients’ RNA from tumor and normal peritumoral tissue was extracted and EWS/FLI-1 fusion screened by quantitative real-time PCR. The relative expression of the fusion in the tumor sample was compared to the similar expression in normal tissue. Results: The amplification in the threshold zone was shown by 5 samples (25%): 2 clear cell sarcoma, 1 fibrosarcoma, 1 malignant tumor of nerve sheath, 1 metastatic adenocarcinoma. We differentiated between the unspecific amplification and concluded that these are weak positive results. Conclusions: Genomic investigation may establish the tumor malignancy and its possible affiliation earlier than histopathology. It can support the screening of EWS/FLI-1 fusion in a larger variety of clinically diagnosed soft tissue tumors. |
| Databáze: | OpenAIRE |
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