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024 7 _ |a 10.1172/jci.insight.190311
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037 _ _ |a DKFZ-2025-01876
041 _ _ |a English
082 _ _ |a 610
100 1 _ |a Wilgenbus, Petra
|b 0
245 _ _ |a Coagulation proteases modulate nucleic acid uptake and cGAS-STING-IFN induction in the tumor microenvironment.
260 _ _ |a Ann Arbor, Michigan
|c 2025
|b JCI Insight
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336 7 _ |a Journal Article
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520 _ _ |a Malignancies increase the risk for thrombosis and metastasis dependent on complex interactions of innate immune cells, platelets, and the coagulation system. Immunosuppressive functions of platelets and macrophage-derived coagulation factors in the tumor microenvironment (TME) drive tumor growth. Here, we show that patients with malignancies and tumor-bearing mice have increased levels of coagulation factor (F) X-expressing circulating monocytes engaged in platelet aggregate formation. This interaction and resulting thrombin generation on platelets interferes with monocyte differentiation and antigen uptake of antigen-presenting cells (APCs). Myeloid cell-specific deletion of FX or abrogated FXa signaling via protease activated receptor 2 (PAR2) averts the suppressive activity of platelets on tumor cell debris uptake and promotes the immune stimulatory activity of APCs in the TME. Myeloid cell FXa-PAR2 signaling deficiency specifically enhances activation of the cGAS-STING-IFN-I pathway with a resulting expansion of antigen experienced progenitor exhausted CD8+ T cells. Pharmacological blockade of FXa with direct oral anticoagulants expands T cell priming-competent immune cells in the TME and synergizes with the reactivation of exhausted CD8+ T cells by immune checkpoint inhibitors for improved antitumor responses. These data provide mechanistic insights into the emerging clinical evidence demonstrating the translational potential of FXa inhibition to synergize with immunotherapy.
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650 _ 7 |a Cancer immunotherapy
|2 Other
650 _ 7 |a Coagulation
|2 Other
650 _ 7 |a Immunology
|2 Other
650 _ 7 |a Oncology
|2 Other
650 _ 7 |a Platelets
|2 Other
650 _ 7 |a Vascular biology
|2 Other
650 _ 7 |a Membrane Proteins
|2 NLM Chemicals
650 _ 7 |a Nucleotidyltransferases
|0 EC 2.7.7.-
|2 NLM Chemicals
650 _ 7 |a STING1 protein, human
|2 NLM Chemicals
650 _ 7 |a cGAS protein, human
|0 EC 2.7.7.-
|2 NLM Chemicals
650 _ 7 |a Sting1 protein, mouse
|2 NLM Chemicals
650 _ 7 |a Factor Xa
|0 EC 3.4.21.6
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650 _ 7 |a Receptor, PAR-2
|2 NLM Chemicals
650 _ 7 |a cGAS protein, mouse
|0 EC 2.7.7.-
|2 NLM Chemicals
650 _ 2 |a Tumor Microenvironment: immunology
|2 MeSH
650 _ 2 |a Animals
|2 MeSH
650 _ 2 |a Humans
|2 MeSH
650 _ 2 |a Mice
|2 MeSH
650 _ 2 |a Membrane Proteins: metabolism
|2 MeSH
650 _ 2 |a Nucleotidyltransferases: metabolism
|2 MeSH
650 _ 2 |a Neoplasms: immunology
|2 MeSH
650 _ 2 |a Neoplasms: pathology
|2 MeSH
650 _ 2 |a Signal Transduction
|2 MeSH
650 _ 2 |a Blood Platelets: metabolism
|2 MeSH
650 _ 2 |a Blood Platelets: immunology
|2 MeSH
650 _ 2 |a Factor Xa: metabolism
|2 MeSH
650 _ 2 |a Factor Xa: genetics
|2 MeSH
650 _ 2 |a Female
|2 MeSH
650 _ 2 |a Receptor, PAR-2: metabolism
|2 MeSH
650 _ 2 |a Receptor, PAR-2: genetics
|2 MeSH
650 _ 2 |a CD8-Positive T-Lymphocytes: immunology
|2 MeSH
650 _ 2 |a Mice, Inbred C57BL
|2 MeSH
650 _ 2 |a Monocytes: metabolism
|2 MeSH
650 _ 2 |a Monocytes: immunology
|2 MeSH
650 _ 2 |a Antigen-Presenting Cells: immunology
|2 MeSH
650 _ 2 |a Male
|2 MeSH
700 1 _ |a Pott, Jennifer
|b 1
700 1 _ |a Pagel, Sven
|b 2
700 1 _ |a Witzler, Claudius
|b 3
700 1 _ |a Royce, Jennifer
|b 4
700 1 _ |a Marini, Federico
|b 5
700 1 _ |a Reyda, Sabine
|b 6
700 1 _ |a Madhusudhan, Thati
|b 7
700 1 _ |a Kindler, Thomas
|0 P:(DE-HGF)0
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700 1 _ |a Hausen, Anne
|b 9
700 1 _ |a Gaida, Matthias M
|b 10
700 1 _ |a Weiler, Hartmut
|b 11
700 1 _ |a Ruf, Wolfram
|b 12
700 1 _ |a Graf, Claudine
|b 13
773 _ _ |a 10.1172/jci.insight.190311
|g Vol. 10, no. 17, p. e190311
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