ST2
ST2 est un membre de la famille des récepteurs de l'interleukine 1.
Structure
Il en existe deux formes, une transmembranaire et une soluble, dosable dans le sang[5]. Son gène est IL1RL1 (pour « Interleukin 1 receptor-like 1 ») situé sur le chromosome 2 humain.
Rôle
Son ligand est l'interleukine 33[5], qui, au niveau cardiaque, réduit la fibrose et l'hypertrophie des parois[6].
Utilisation en tant que marqueur
Le taux sanguin de sa forme soluble semble être corrélé avec un pronostic plus sévère en cas d'insuffisance cardiaque[5]. il s'élève également en cas de dissection aortique[7], d'infarctus du myocarde et de manière plus importante en cas d'atteinte cardiaque grave[8], et ce, de manière plus précise que le dosage de la galectine-3[9].
Notes et références
- GRCh38: Ensembl release 89: ENSG00000115602 - Ensembl, May 2017
- GRCm38: Ensembl release 89: ENSMUSG00000026069 - Ensembl, May 2017
- ↑ « Publications PubMed pour l'Homme », sur National Center for Biotechnology Information, U.S. National Library of Medicine
- ↑ « Publications PubMed pour la Souris », sur National Center for Biotechnology Information, U.S. National Library of Medicine
- Januzzi JL Jr. ST2 as a cardiovascular risk biomarker: from the bench to the bedside, J Cardiovasc Transl Res, 2013;6:493–500
- ↑ Sanada S, Hakuno D, Higgins LJ, Schreiter ER, McEnzie ANJ, Lee RT, IL-33 and ST2 comprise a critical biomechanically induced and cardioprotective signaling system, J Clin Invest, 2007;117:1538–1549
- ↑ Wang Y, Tan X, Gao H et al. Magnitude of soluble ST2 as a novel biomarker for acute aortic dissection, Circulation, 2018;137:259–269
- ↑ Weinberg Eo, Shimpo M, De Keulenaer GW et al. Expression and regulation of ST2, an interleukin-1 receptor family member, in cardiomyocytes and myocardial infarction, Circulation, 2002;106:2961–2966
- ↑ Bayes-Genis A, de Antonio M, Vila J et al. Head-to-head comparison of 2 myocardial fibrosis biomarkers for long-term heart failure risk stratification: ST2 versus Galectin-3, J Am Coll Cardiol, 2014;63:158-166
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