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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Odaka, Haruki Hiemori, Keiko Shimoda, Asako Akiyoshi, Kazunari Tateno, Hiroaki |
| Abstract | Background Pancreatic ductal adenocarcinoma (PDAC) is one of the deadliest gastrointestinal cancers with a 5-year survival rate of less than 10%. Biomarkers for early PDAC detection are useful in treating patients with PDAC. Extracellular vesicles (EVs) are lipid-bound vesicles that are potential biomarkers of various diseases such as PDAC. In this study, we quantitatively measured the serum levels of EVs (CD63+-EVs) or platelet-derived EVs (CD41+- and CD61+-EVs) and evaluated their potential use as biomarkers of PDAC. Methods We measured the serum levels of CD63+-, CD41+-, CD61+-EVs using sandwich enzyme-linked immunosorbent assay based on Tim4 with specificity for phosphatidylserine on EVs in age- and sex-matched healthy controls (HCs, n = 39) and patients with PDAC (n = 39). We also examined the effect of tumor burden on the serum EV levels after surgical resection (n = 28). CA19-9, a clinical PDAC biomarker, was also measured for comparison. Results Serum levels of CD63+-EVs, CD41+-EVs, and CD61+-EVs were significantly increased in patients with PDAC compared to HCs. Receiver operating characteristic analysis revealed that CD63+-EVs exhibited the highest diagnostic performance to discriminate patients with PDAC from HCs (area under the curve (AUC): 0.846), which was comparable to CA19-9 (AUC: 0.842). CA19-9 showed lower AUC values in early stages (I–II, AUC: 0.814) than in late stages (III–IV, AUC: 0.883) PDAC. Conversely, CD63+-EVs, CD41+-EVs, and CD61+-EVs showed comparable AUCs between early- and late-stage PDAC. The combined use of CA19-9 and CD63+-EVs showed a higher diagnostic performance for early-stage PDAC (AUC: 0.903) than CA19-9. The serum levels of CD63+-EVs, CD41+-EVs, CD61+-EVs, and CA19-9 decreased significantly after surgical resection, demonstrating that EVs are increased in sera of patients depending on the tumor burden. Conclusions The serum levels of CD63+-EVs and platelet-derived EVs (CD41+-EVs, CD61+-EVs) are increased in patients with PDAC than HCs. Since CD63+-EVs showed a high AUC to discriminate patients with PDAC from HCs; they might be useful as potential biomarkers for PDAC. |
| Related Links | https://bmcgastroenterol.biomedcentral.com/counter/pdf/10.1186/s12876-022-02228-7.pdf |
| Ending Page | 10 |
| Page Count | 10 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| DOI | 10.1186/s12876-022-02228-7 |
| Journal | BMC Gastroenterology |
| Issue Number | 1 |
| Volume Number | 22 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2022-03-28 |
| Access Restriction | Open |
| Subject Keyword | Gastroenterology Internal Medicine Hepatology Pancreatic ductal adenocarcinoma Extracellular vesicle CD63 Platelet Exosome Biomarker |
| Content Type | Text |
| Resource Type | Article |
| Subject | Gastroenterology |
| Journal Impact Factor | 2.5/2023 |
| 5-Year Journal Impact Factor | 2.7/2023 |
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