Abstract
Stem cell therapy for the prevention and treatment of cardiac dysfunction holds significant promise for patients with ischemic heart disease. Excitingly early clinical studies have demonstrated safety and some clinical feasibility, while at the same time studies in the laboratory have investigated mechanisms of action and strategies to optimize the effects of regenerative cardiac therapies. One of the key pathways that has been demonstrated critical in stem cell-based cardiac repair is (stromal cell-derived factor-1) SDF-1:CXCR4. SDF-1:CXCR4 has been shown to affect stem cell homing, cardiac myocyte survival and ventricular remodeling in animal studies of acute myocardial infarction and chronic heart failure. Recently released clinical data suggest that SDF-1 alone is sufficient to induce cardiac repair. Most importantly, studies like those on the SDF-1:CXCR4 axis have suggested mechanisms critical for cardiac regenerative therapies that if clinical investigators continue to ignore will result in poorly designed studies that will continue to yield negative results.
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This work was funded by Juventas Therapeutics and the Skirball Foundation.
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Drs Aras, Miller and Pastore are employees of Juventas Therapeutics as such receive salary and stock options from the companies. Dr Penn is named as an inventor on patent applications filed for the use of SDF-1 for the treatment of ischemic tissue injury. He is the founder and chief medical officer of Juventas Therapeutics and SironRX Therapeutics. As such he receives consulting fees and stock options from the companies.
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Penn, M., Pastore, J., Miller, T. et al. SDF-1 in myocardial repair. Gene Ther 19, 583–587 (2012). https://doi.org/10.1038/gt.2012.32
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DOI: https://doi.org/10.1038/gt.2012.32