ArticleJournal of thrombosis and haemostasis : JTH2024
Composition of thrombi in zebrafish: similarities and distinctions with mammals.
Article in Journal of thrombosis and haemostasis : JTH, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 9 citations in OpenAlex.
- Secondary Metabolites with Antithrombotic and Antioxidant Activities Derived fromMolecules (Basel, Switzerland) · 2026Article
- Zebrafish as a vertebrate model for high-throughput drug toxicity screening: Mechanisms, novel techniques, and future perspectives.Journal of pharmaceutical analysis · 2025Review
- Anti-Thrombotic Effect of Hemp Seed Peptides in Zebrafish by Dual Regulation of vegfr1 Signaling and Caspase-3-Mediated Apoptosis.Food science & nutrition · 2025Article
- Deconstructing fibrin(ogen) structure.Journal of thrombosis and haemostasis : JTH · 2025Review
- Hormone-induced thrombosis is mediated through non-canonical fibrin(ogen) aggregation and a novel estrogen target in zebrafish.bioRxiv : the preprint server for biology · 2024Article
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Authors and funding
13 authors at 4 institutions in 2 countries.
Funding
Abstract
backgroundBlood clots are primarily composed of red blood cells (RBCs), platelets/thrombocytes, and fibrin. Despite the similarities observed between mammals and zebrafish, the composition of fish thrombi is not as well known.
objectivesTo analyze the formation of zebrafish blood clots ex vivo and arterial and venous thrombi in vivo.
methodsTransgenic zebrafish lines and laser-mediated endothelial injury were used to determine the relative ratio of RBCs and thrombocytes in clots. Scanning electron and confocal microscopy provided high-resolution images of the structure of adult and larval clots. Adult and larval thrombocyte spreading on fibrinogen was evaluated ex vivo.
resultsRBCs were present in arterial and venous thrombi, making up the majority of cells in both circulations. However, bloodless mutant fish demonstrated that fibrin clots can form in vivo in the absence of blood cells. Scanning electron and confocal microscopy showed that larval and adult zebrafish thrombi and mammalian thrombi look surprisingly similar externally and internally, even though the former have nucleated RBCs and thrombocytes. Although adult thrombocytes spread on fibrinogen, we found that larval cells do not fully activate without the addition of plasma from adult fish, suggesting a developmental deficiency of a plasma activating factor. Finally, mutants lacking αIIbβ3 demonstrated that this integrin mediates thrombocyte spreading on fibrinogen.
conclusionOur data showed strong conservation of arterial and venous and clot/thrombus formation across species, including developmental regulation of thrombocyte function. This correlation supports the possibility that mammals also do not absolutely require circulating cells to form fibrin clots in vivo.
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