Cardiogenic shock(CS)is a common cause of mortality and treatment remains challenging despite advances in therapeutic options.CS is caused by severe impairment of myocardial performance that results in decreased cardi...Cardiogenic shock(CS)is a common cause of mortality and treatment remains challenging despite advances in therapeutic options.CS is caused by severe impairment of myocardial performance that results in decreased cardiac output,hypoperfusion of the end organ,and hypoxia.Clinically this presents as hypotension refractory to volume resuscitation with features of end-organ hypoperfusion requiring pharmacological or mechanical intervention.Acute myocardial infarction(AMI)accounts for 81%of patients with CS.Heat shock protein family B member 1(HSPB1)is a multifunctional protein induced by various stress factors and has a protective effect on cells.A large number of studies have demonstrated that HSPB1 plays an important role in regulating apoptosis.Recently,some studies have suggested that HSPB1 also participates in the autophagic process.HSPB1 are expressed in many cells of the cardiovascular system such as endothelial cells,cardiac muscle cells,monocytes,and platelets.They are up-regulated in response to inflammation,oxidative stress,or ischemia and protect cells against extracellular stress factors.Here,we explore the involvement of HSPB1 in apoptosis,autophagy,and CS.We speculate that HSPB1 may exert its anti-myocardial injury role via the regulation of apoptosis and autophagy;this may provide the basis for the development of new approaches for the prevention and treatment of CS.展开更多
文摘Cardiogenic shock(CS)is a common cause of mortality and treatment remains challenging despite advances in therapeutic options.CS is caused by severe impairment of myocardial performance that results in decreased cardiac output,hypoperfusion of the end organ,and hypoxia.Clinically this presents as hypotension refractory to volume resuscitation with features of end-organ hypoperfusion requiring pharmacological or mechanical intervention.Acute myocardial infarction(AMI)accounts for 81%of patients with CS.Heat shock protein family B member 1(HSPB1)is a multifunctional protein induced by various stress factors and has a protective effect on cells.A large number of studies have demonstrated that HSPB1 plays an important role in regulating apoptosis.Recently,some studies have suggested that HSPB1 also participates in the autophagic process.HSPB1 are expressed in many cells of the cardiovascular system such as endothelial cells,cardiac muscle cells,monocytes,and platelets.They are up-regulated in response to inflammation,oxidative stress,or ischemia and protect cells against extracellular stress factors.Here,we explore the involvement of HSPB1 in apoptosis,autophagy,and CS.We speculate that HSPB1 may exert its anti-myocardial injury role via the regulation of apoptosis and autophagy;this may provide the basis for the development of new approaches for the prevention and treatment of CS.
