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Characteristics of extracellular vesicles from an HGSOC cell line derived from a platinum-resistant patient as a potential tool for aiding prediction of response to chemotherapy [Elektronski vir]Černe, Katarina ...Platinum-resistant high-grade serous ovarian cancer (HGSOC) is invariably a fatal disease, so a central goal in ovarian cancer research is to develop novel strategies to overcome platinum resistance. ... Treatment is thus moving towards personalized therapy. However, validated molecular biomarkers to predict patients’ risk of developing platinum resistance are still lacking. Extracellular vesicles (EVs) are promising candidates for biomarkers. EpCAM-specific EVs are largely unexplored biomarkers in predicting chemoresistance. Using transmission electron microscopy, nanoparticle tracking analysis and flow cytometry, we compared the characteristics of EVs released from a cell line derived from a clinically confirmed cisplatin-resistant patient (OAW28) and EVs released from two cell lines from tumors sensitive to platinum-based chemotherapy (PEO1, OAW42). We showed that characteristics of EVs released from the HGSOC cell line of chemoresistant patients had higher heterogeneity in size, a larger proportion of medium/large (>200nm) EVs and a higher number of released EpCAM-positive EVs of different sizes, although expression of EpCAM predominated, especially on those larger than 400 nm. We also determined a strong positive correlation between the concentration of EpCAM-positive EVs and expression of cellular EpCAM. These results may contribute to prediction of platinum resistance in the future, although they should first be validated in clinical samples.Source: Pharmaceuticals [Elektronski vir]. - ISSN 1424-8247 (Vol. 16, no. 6, 2023, str. 1-18)Type of material - e-article ; adult, seriousPublish date - 2023Language - englishCOBISS.SI-ID - 150892803
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| Year | Impact factor | Edition | Category | Classification | ||||
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| JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP | |
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DRS, in which the journal is indexed
| Database name | Field | Year |
|---|
| Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
|---|---|
| Černe, Katarina | 10990 |
| Kelhar, Nuša |  |
| Resnik, Nataša | 28393 |
| Herzog, Maruša, dr. med. | |
| Vodnik, Lana, dr. med. | |
| Veranič, Peter | 08279 |
| Kobal, Borut | 06970 |
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and: SICRIS
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