Matrix metalloproteinase 9 in the left ventricular remodeling

D.V. Shumakov, D.I. Zybin, M.A. Popov

Moscow Regional Clinical Research Institute named after M.F. Vladimirsky, Moscow

Nowadays, chronic heart failure after myocardial infarction (MI) develops approximately in one of four patients and has a high five-year mortality rate (more than 50%), despite modern conservative treatment regimens. That is why understanding the mechanisms of heart failure is extremely relevant. Matrix metalloproteinases are key enzymes involved in left ventricular remodeling. At the same time, an issue concerning the effect of metalloproteinases on the basal cardiomyocyte membranes remains incompletely resolved. It is the basal membranes that are the link between the extracellular matrix and cardiomyocytes, participating in the transmission of the force of contractions during systole. One of the most well-studied is matrix metalloproteinase 9 (MMP-9). A more comprehensive study of MMP-9, especially in relation to the type IV collagen destruction in the basal cardiomyocyte membranes, may  help to optimize the chronic heart failure treatment tactics after MI and to improve the prognosis for difficult-to-treat patients. This review is devoted to the study of the MMP-9 effect on left ventricular remodeling.

Keywords: matrix metalloproteinases, heart failure, type IV collagen, left ventricular remodeling, myocardial infarction.

For citation: Shumakov D.V., Zybin D.I., Popov M.A. Matrix metalloproteinase 9 in the left ventricular remodeling. RMJ. 2020;10:17–19.