EFFECTS OF MYOCARDIAL CYTOSOLIC FRACTION AND LIPOPOLYSACCHARIDE UPON MONOCYTIC FUNCTIONS

Abstract. Complicated systemic inflammatory response syndrome in patients undergone open-heart surgery is an important issue of cardiac surgery. The conditions and trigger mechanisms leading to such a complication remain unclear.We studied the impact of mechanincal myocardial injury products release...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: V. G. Matveeva, A. S. Golovkin, M. N. Chernova, I. V. Kudryavtsev, S. V. Ivanov, E. V. Grigoriev
Formato: article
Lenguaje:RU
Publicado: SPb RAACI 2014
Materias:
Acceso en línea:https://doaj.org/article/24bd445e361b4c88ac3a9aef332a3724
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
Descripción
Sumario:Abstract. Complicated systemic inflammatory response syndrome in patients undergone open-heart surgery is an important issue of cardiac surgery. The conditions and trigger mechanisms leading to such a complication remain unclear.We studied the impact of mechanincal myocardial injury products released into blood during open-heart surgery, lipopolysaccharides and their combination on isolated monocytes.It was found that mechanically injured myocardial tissue can be a source of intracellular heat shock protein 70 (Hsp70). The content of Hsp70 in the cytosolic cardiomyocyte fraction responsible for mechanical myocardial injury modeling corresponds to the level of proinflammatory cytokine production by monocytes and the density of TLR4 surface expression. The study results confirm the synergy and potentiation of the combined impact of mechanical myocardial injury products and lipopolysaccharides on the levels of cytokine production by monocytes.