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Thromboxane A2 (TXA2) is a prostanoid mediator produced by the metabolism of Arachidonic acid (HY-109590) through the cyclooxygenase pathway. Thromboxane A2 activates the thromboxane-prostanoid (TP) receptors. Thromboxane A2 is a potent vasoconstrictor eicosanoid. Thromboxane A2 (TXA2) leads to potent vasoconstriction by stimulation of smooth muscle cells. Thromboxane A2 acts as s tonic immunoregulator to regulate adaptive immune responses[1][2][3].

ChEBI: Thromboxane A2 is a thromboxane which is produced by activated platelets and has prothrombotic properties: it stimulates activation of new platelets as well as increases platelet aggregation. It has a role as a mouse metabolite. It is an epoxy monocarboxylic acid and a thromboxanes A. It is a conjugate acid of a thromboxane A2(1-).

Human Endogenous Metabolite; TP

[1] Matthew A Sparks, et al. Thromboxane receptors in smooth muscle promote hypertension, vascular remodeling, and sudden death. Hypertension. 2013 Jan;61(1):166-73. DOI:10.1161/HYPERTENSIONAHA.112.193250
[2] Federica Moalli, et al. Thromboxane A2 acts as tonic immunoregulator by preferential disruption of low-avidity CD4+ T cell-dendritic cell interactions. J Exp Med. 2014 Dec 15;211(13):2507-17. DOI:10.1084/jem.20140137
[3] Nie D, et al. Thromboxane A(2) regulation of endothelial cell migration, angiogenesis, and tumor metastasis. Biochem Biophys Res Commun. 2000 Jan 7;267(1):245-51. DOI:10.1006/bbrc.1999.1840