1
|
Verel-Yilmaz Y, Fernández JP, Schäfer A, Nevermann S, Cook L, Gercke N, Helmprobst F, Jaworek C, Pogge von Strandmann E, Pagenstecher A, Bartsch DK, Bartsch JW, Slater EP. Extracellular Vesicle-Based Detection of Pancreatic Cancer. Front Cell Dev Biol 2021; 9:697939. [PMID: 34368146 PMCID: PMC8343017 DOI: 10.3389/fcell.2021.697939] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 06/29/2021] [Indexed: 12/12/2022] Open
Abstract
Due to a grim prognosis, there is an urgent need to detect pancreatic ductal adenocarcinoma (PDAC) prior to metastasis. However, reliable diagnostic imaging methods or biomarkers for PDAC or its precursor lesions are still scarce. ADAM8, a metalloprotease-disintegrin, is highly expressed in PDAC tissue and negatively correlates with patient survival. The aim of our study was to determine the ability of ADAM8-positive extracellular vesicles (EVs) and cargo microRNAs (miRNAs) to discriminate precursor lesions or PDAC from healthy controls. In order to investigate enrichment of ADAM8 on EVs, these were isolated from serum of patients with PDAC (n = 52), precursor lesions (n = 7) and healthy individuals (n = 20). Nanoparticle Tracking Analysis and electron microscopy indicated successful preparation of EVs that were analyzed for ADAM8 by FACS. Additionally, EV cargo analyses of miRNAs from the same serum samples revealed the presence of miR-720 and miR-451 by qPCR and was validated in 20 additional PDAC samples. Statistical analyses included Wilcoxon rank test and ROC curves. FACS analysis detected significant enrichment of ADAM8 in EVs from patients with PDAC or precursor lesions compared to healthy individuals (p = 0.0005). ADAM8-dependent co-variates, miR-451 and miR-720 were also diagnostic, as patients with PDAC had significantly higher serum levels of miR-451 and lower serum levels of miR-720 than healthy controls and reached high sensitivity and specificity (AUC = 0.93 and 1.00, respectively) to discriminate PDAC from healthy control. Thus, detection of ADAM8-positive EVs and related cargo miR-720 and miR-451 may constitute a specific biomarker set for screening individuals at risk for PDAC.
Collapse
Affiliation(s)
- Yesim Verel-Yilmaz
- Department of Visceral, Thoracic and Vascular Surgery, Philipps University Marburg, Marburg, Germany
| | - Juan Pablo Fernández
- Department of Visceral, Thoracic and Vascular Surgery, Philipps University Marburg, Marburg, Germany
| | - Agnes Schäfer
- Department of Neurosurgery, Philipps University Marburg, Marburg, Germany
| | - Sheila Nevermann
- Department of Visceral, Thoracic and Vascular Surgery, Philipps University Marburg, Marburg, Germany
| | - Lena Cook
- Department of Neurosurgery, Philipps University Marburg, Marburg, Germany
| | - Norman Gercke
- Department of Visceral, Thoracic and Vascular Surgery, Philipps University Marburg, Marburg, Germany
| | - Frederik Helmprobst
- Department of Neuropathology, Philipps University Marburg, Marburg, Germany.,Core Facility-Mouse Pathology and Electron Microscopy (MPEM), Philipps University Marburg, Marburg, Germany
| | - Christian Jaworek
- Department of Neurosurgery, Philipps University Marburg, Marburg, Germany
| | | | - Axel Pagenstecher
- Department of Neuropathology, Philipps University Marburg, Marburg, Germany
| | - Detlef K Bartsch
- Department of Visceral, Thoracic and Vascular Surgery, Philipps University Marburg, Marburg, Germany
| | - Jörg W Bartsch
- Department of Neurosurgery, Philipps University Marburg, Marburg, Germany
| | - Emily P Slater
- Department of Visceral, Thoracic and Vascular Surgery, Philipps University Marburg, Marburg, Germany
| |
Collapse
|
2
|
Jaworek C, Verel-Yilmaz Y, Driesch S, Ostgathe S, Cook L, Wagner S, Bartsch DK, Slater EP, Bartsch JW. Cohort Analysis of ADAM8 Expression in the PDAC Tumor Stroma. J Pers Med 2021; 11:jpm11020113. [PMID: 33578644 PMCID: PMC7916368 DOI: 10.3390/jpm11020113] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/05/2021] [Accepted: 02/07/2021] [Indexed: 12/17/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a cancer type with one of the highest mortalities. The metalloprotease-disintegrin ADAM8 is highly expressed in pancreatic cancer cells and is correlated with an unfavorable patient prognosis. However, no information is available on ADAM8 expression in cells of the tumor microenvironment. We used immunohistochemistry (IHC) to describe the stromal cell types expressing ADAM8 in PDAC patients using a cohort of 72 PDAC patients. We found ADAM8 expressed significantly in macrophages (6%), natural killer cells (40%), and neutrophils (63%), which showed the highest percentage of ADAM8 expressing stromal cells. We quantified the amount of ADAM8+ neutrophils in post-capillary venules in PDAC sections by IHC. Notably, the amount of ADAM8+ neutrophils could be correlated with post-operative patient survival times. In contrast, neither the total neutrophil count in peripheral blood nor the neutrophil-to-lymphocyte ratio showed a comparable correlation. We conclude from our data that ADAM8 is, in addition to high expression levels in tumor cells, present in tumor-associated stromal macrophages, NK cells, and neutrophils and, in addition to functional implications, the ADAM8-expressing neutrophil density in post-capillary venules is a diagnostic parameter for PDAC patients when the numbers of ADAM8+ neutrophils are quantified.
Collapse
Affiliation(s)
- Christian Jaworek
- Department of Neurosurgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (C.J.); (S.O.); (L.C.)
| | - Yesim Verel-Yilmaz
- Department of Visceral Surgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (Y.V.-Y.); (S.D.); (D.K.B.); (E.P.S.)
| | - Sarah Driesch
- Department of Visceral Surgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (Y.V.-Y.); (S.D.); (D.K.B.); (E.P.S.)
| | - Sarah Ostgathe
- Department of Neurosurgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (C.J.); (S.O.); (L.C.)
| | - Lena Cook
- Department of Neurosurgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (C.J.); (S.O.); (L.C.)
| | - Steffen Wagner
- Head and Neck Surgery, Department of Otorhinolaryngology, Justus Liebig University Giessen, Aulweg 128 (ForMED), 35392 Giessen, Germany;
| | - Detlef K. Bartsch
- Department of Visceral Surgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (Y.V.-Y.); (S.D.); (D.K.B.); (E.P.S.)
| | - Emily P. Slater
- Department of Visceral Surgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (Y.V.-Y.); (S.D.); (D.K.B.); (E.P.S.)
| | - Jörg W. Bartsch
- Department of Neurosurgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (C.J.); (S.O.); (L.C.)
- Correspondence: ; Tel.: +49-6421-58-61173
| |
Collapse
|