Acute coronary syndrome is associated with a substantial change in the platelet lipidome.
Cardiovasc Res
; 118(8): 1904-1916, 2022 06 29.
Article
em En
| MEDLINE
| ID: mdl-34323932
ABSTRACT
AIMS:
Platelets play a key role in the pathophysiology of coronary artery disease (CAD) and patients with enhanced platelet activation are at increased risk to develop adverse cardiovascular events. Beyond reliable cardiovascular risk factors such as dyslipoproteinaemia, significant changes of platelet lipids occur in patients with CAD. In this study, we investigate the platelet lipidome by untargeted liquid chromatography-mass spectrometry, highlighting significant changes between acute coronary syndrome (ACS) and chronic coronary syndrome (CCS) patients. Additionally, we classify the platelet lipidome, spotlighting specific glycerophospholipids as key players in ACS patients. Furthermore, we examine the impact of significantly altered lipids in ACS on platelet-dependent thrombus formation and aggregation. METHODS ANDRESULTS:
In this consecutive study, we characterized the platelet lipidome in a CAD cohort (n = 139) and showed significant changes of lipids between patients with ACS and CCS. We found that among 928 lipids, 7 platelet glycerophospholipids were significantly up-regulated in ACS, whereas 25 lipids were down-regulated compared to CCS. The most prominent up-regulated lipid in ACS, PC180 (PC 100-80), promoted platelet activation and ex vivo platelet-dependent thrombus formation.CONCLUSIONS:
Our results reveal that the platelet lipidome is altered in ACS and up-regulated lipids embody primarily glycerophospholipids. Alterations of the platelet lipidome, especially of medium chain lipids, may play a role in the pathophysiology of ACS.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Trombose
/
Doença da Artéria Coronariana
/
Síndrome Coronariana Aguda
Limite:
Humans
Idioma:
En
Revista:
Cardiovasc Res
Ano de publicação:
2022
Tipo de documento:
Article