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Myocardial ischemia induces SDF-1α release in cardiac surgery patients

J Cardiovasc Transl Res. 2016 Apr 7. [Epub ahead of print]

Authors/Editors: Kim BS, Jacobs D, Emontzpohl C, Goetzenich A, Soppert J, Jarchow M, Schindler L, Averdunk L, Kraemer S, Marx G, Bernhagen J, Pallua N, Schlemmer HP, Simons D, Stoppe C.
Publication Date: 2016

Abstract

In the present observational study, we measured serum levels of the chemokine stromal cell-derived factor-1α (SDF-1α) in 100 patients undergoing cardiac surgery with cardiopulmonary bypass at seven distinct time points including preoperative values, myocardial ischemia, reperfusion, and the postoperative course. Myocardial ischemia triggered a marked increase of SDF-1α serum levels whereas cardiac reperfusion had no significant influence. Perioperative SDF-1α serum levels were influenced by patients' characteristics (e.g., age, gender, aspirin intake). In an explorative analysis, we observed an inverse association between SDF-1α serum levels and the incidence of organ dysfunction. In conclusion, time of myocardial ischemia was identified as the key stimulus for a significant upregulation of SDF-1α, indicating its role as a marker of myocardial injury. The inverse association between SDF-1α levels and organ dysfunction association encourages further studies to evaluate its organoprotective properties in cardiac surgery patients.

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