Mytilus edulis hydrolysate enhances proliferation and protects endothelial cells against hypochlorous acid-induced oxidative stress

BACKGROUND: Endothelial dysfunction underlies the pathogenesis of many socially significant diseases. The search for new original drugs for the treatment of this condition remains an important scientific and practical task. Anti-inflammatory, anticoagulant and antioxidant effects of bivalve mollusks from the family of mussels (Mytilus edulis) hydrolysate and its derivatives have been described in different model systems. AIM: The purpose of this study was to investigate the effect of M. edulis hydrolysate on the functional activity of EA.hy926 endothelial cell line. MATERIALS AND METHODS: The viability and metabolic activity of endothelial cells were studied in MTT-test. To investigate the proliferative activity, a test with staining of cells with crystal violet dye was used. The ability of the preparation to neutralize the toxic effect of HOCl and H2O2 was evaluated using fluorescent dyes and flow cytometry. RESULTS: It was found that the preparation did not have cytotoxicity and significantly increased the proliferation of endothelial cells in dilutions from 1:10 to 1:60. The preparation had a neutralizing effect against HOCl, and in all the studied dilutions significantly increased the viability of the endothelium. The preparation was not effective against H2O2, and increased H2O2 toxic effect in the maximal studied concentration. At the same time, the anti-inflammatory effect of M. edulis hydrolysate was not confirmed in this model system. The preparation had no effect on the IL-8 production and adhesion molecule CD54 (ICAM-1) and tissue factor CD146 the expression. CONCLUSIONS: The preparation of M. edulis hydrolysate enhances the proliferation of endothelial cells and is able to neutralize HOCl toxic effects.