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| 001 | 143436 | ||
| 005 | 20240229112553.0 | ||
| 024 | 7 | _ | |a 10.1182/bloodadvances.2018015966 |2 doi |
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| 100 | 1 | _ | |a Costa, Barbara Maria |0 P:(DE-He78)2fe44044f40217387daaf299f2eb7340 |b 0 |e First author |u dkfz |
| 245 | _ | _ | |a Intratumoral platelet aggregate formation in a murine preclinical glioma model depends on podoplanin expression on tumor cells. |
| 260 | _ | _ | |a Washington, DC |c 2019 |b American Society of Hematology |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Binding of the sialomucin-like transmembrane glycoprotein podoplanin (PDPN) to the platelet receptor C-type lectin-like receptor 2 induces platelet activation and aggregation. In human high-grade gliomas, PDPN is highly expressed both in tumor cells and in tumor-associated astrocytes. In glioma patients, high expression of PDPN is associated with worse prognosis and has been shown to correlate with intratumoral platelet aggregation and an increased risk of venous thromboembolism (VTE). To functionally assess the role of PDPN in platelet aggregation in vivo, we established a syngeneic orthotopic murine glioma model in C57/Bl6 mice, based on transplantation of p53- and Pten-deficient neural stem cells. This model is characterized by the presence of intratumoral platelet aggregates and by the upregulation of PDPN both in glioma cells and in astrocytes, reflecting the characteristics of human gliomas. Deletion of PDPN either in tumor cells or in astrocytes resulted in glioma formation with similar penetrance and grade compared with control mice. Importantly, only the lack of PDPN in tumor cells, but not in astrocytes, caused a significant reduction in intratumoral platelet aggregates, whereas in vitro, both cell types have similar platelet aggregation-inducing capacities. Our results demonstrate a causative link between PDPN and platelet aggregation in gliomas and pinpoint the tumor cells as the major players in PDPN-induced platelet aggregation. Our data indicate that blocking PDPN specifically on tumor cells could represent a novel strategy to prevent platelet aggregation and thereby reduce the risk of VTE in glioma patients. |
| 536 | _ | _ | |a 311 - Signalling pathways, cell and tumor biology (POF3-311) |0 G:(DE-HGF)POF3-311 |c POF3-311 |f POF III |x 0 |
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| 700 | 1 | _ | |a Eisemann, Tanja |0 P:(DE-He78)db396aa5e7017ae96520ba81ded5fc0e |b 1 |u dkfz |
| 700 | 1 | _ | |a Strelau, Jens |b 2 |
| 700 | 1 | _ | |a Spaan, Ingrid |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Korshunov, Andrey |0 P:(DE-He78)8d9c904a6cea14d4c99c78ba46e41f93 |b 4 |u dkfz |
| 700 | 1 | _ | |a Liu, Hai-Kun |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Bugert, Peter |b 6 |
| 700 | 1 | _ | |a Angel, Peter |0 P:(DE-He78)f4f068e71e0d87bf0ad51e6214ab84e9 |b 7 |u dkfz |
| 700 | 1 | _ | |a Peterziel, Heike |0 P:(DE-He78)2727b5cb63b52d0137d4f4e8f110ee7e |b 8 |e Last author |u dkfz |
| 773 | _ | _ | |a 10.1182/bloodadvances.2018015966 |g Vol. 3, no. 7, p. 1092 - 1102 |0 PERI:(DE-600)2876449-3 |n 7 |p 1092 - 1102 |t Blood advances |v 3 |y 2019 |x 2473-9537 |
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