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Zebrafish Model for Thrombosis and Brain-Behavior Studies.

Jabila Mary¹, Pudur Jagadeeswaran¹

¹Department of Biological Sciences, University of North Texas, Denton, Texas.

Current Protocols

|February 10, 2025

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Zebrafish offer a powerful genetic model for understanding hemostasis and thrombosis. This study details methods for gene knockdown, blood analysis, and functional assays to uncover novel factors in blood clotting and pain pathways.

Area of Science:

* Comparative genomics and molecular biology
* Physiology and pathophysiology of hemostasis and thrombosis
* Pain research and sensory pathways

Background:

* Hemostasis is crucial for preventing blood loss, involving platelet plug formation and coagulation cascade activation.
* Thrombosis, or intravascular fibrin formation, is unpredictable and linked to severe pain.
* Many factors influencing hemostasis and thrombosis remain unidentified, necessitating advanced research models.

Purpose of the Study:

* To establish and validate zebrafish as a genetic model for studying thrombosis and pain.
* To present a comprehensive suite of protocols for investigating hemostasis and thrombotic disorders in zebrafish.
* To facilitate genome-wide screening for genes involved in hemostasis, thrombosis, and pain signaling.

Keywords:

bleeding assay blood coagulation pain piggyback knockdown thrombocyte aggregation thrombosis

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Main Methods:

* Gene silencing using the piggyback knockdown method.
* Blood collection, thrombocyte quantification (FACS analysis), and aggregation assays (flow cytometry, plate tilt).
* Coagulation assays (kinetic, bleeding assays), laser-induced thrombosis, and trypsin aversion assay for pain pathway analysis.

Main Results:

* Demonstrated the utility of zebrafish for studying hemostasis and thrombosis through various established and novel assays.
* Provided detailed protocols for gene silencing, blood analysis, and functional testing of hemostatic components.
* Validated assays for assessing coagulation defects, thrombocyte function, and pain perception in zebrafish.

Conclusions:

* Zebrafish serve as an effective genetic model for dissecting complex hemostasis and thrombosis mechanisms.
* The presented methodologies enable comprehensive functional evaluation of genes impacting blood clotting and pain.
* This research provides a foundation for identifying novel therapeutic targets for hemostatic and thrombotic diseases.