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- W4324340217 abstract "Patients with cancer have an increased risk of developing venous thromboembolism. Neutrophils and neutrophil extracellular traps (NETs) reportedly influence the risk of cancer-associated thrombosis. Subpopulations of high and low-density neutrophils (HDN/LDN) are of specific interest, as they might have different functions in cancer patients.We aimed to investigate differences between HDNs and LDNs of patients with lung cancer and healthy controls, and their ability of activation and NET formation.Within the framework of the Vienna Cancer and Thrombosis Study, a prospective observational cohort study, HDNs and LDNs from 20 patients with lung cancer and 20 controls were isolated by density gradient centrifugation. The ability of neutrophil subpopulations for activation and NET formation was investigated by flow cytometry.Compared to controls, patients with cancer had higher numbers of total leukocytes, HDNs, and LDNs. LDNs of patients were more frequently in an activated state (CD62L↓/CD16↑) at baseline (median [IQR] 5.9% [3.4-8.8] vs 2.5% [1.6-6.7]). HDNs and LDNs from patients showed a significantly increased response to stimulation with ionomycin (CD11b HDN: 98.5 [95.4-99.4] vs 41.7 [13.4-91.6]; LDN: 82.9 [63-94] vs 39.6 [17.3-72.1]). In addition, HDNs from patients showed a higher capability of NET formation after ionomycin stimulation compared to HDNs from healthy controls (18509.5 [12242.5-29470.3] vs 10001 [6618.8-18384.3]).Protumorigenic LDNs were elevated, and neutrophil subpopulations showed an increased activation profile and ability for NET formation in patients with cancer. These mechanisms might be involved in tumor promotion and contribute to the prothrombotic phenotype of neutrophils in cancer." @default.
- W4324340217 created "2023-03-16" @default.
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- W4324340217 date "2023-02-01" @default.
- W4324340217 modified "2023-10-01" @default.
- W4324340217 title "Neutrophils in lung cancer patients: Activation potential and neutrophil extracellular trap formation" @default.
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- W4324340217 doi "https://doi.org/10.1016/j.rpth.2023.100126" @default.
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