Department of Cardiology, Fundación Jiménez Díaz, Autónoma University and CiberCV, Avenida Reyes Católicos 2, Madrid, Spain.
Cardiovascular Sciences Institute (ICCC) and CiberCV, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
Cardiovasc Res. 2019 Jan 1;115(1):10-19. doi: 10.1093/cvr/cvy293.
Dysregulated lipid metabolism induces an inflammatory and immune response leading to atherosclerosis. Conversely, inflammation may alter lipid metabolism. Recent treatment strategies in secondary prevention of atherosclerosis support beneficial effects of both anti-inflammatory and lipid-lowering therapies beyond current targets. There is a controversy about the possibility that anti-inflammatory effects of lipid-lowering therapy may be either independent or not of a decrease in low-density lipoprotein cholesterol. In this Position Paper, we critically interpret and integrate the results obtained in both experimental and clinical studies on anti-inflammatory actions of lipid-lowering therapy and the mechanisms involved. We highlight that: (i) besides decreasing cholesterol through different mechanisms, most lipid-lowering therapies share anti-inflammatory and immunomodulatory properties, and the anti-inflammatory response to lipid-lowering may be relevant to predict the effect of treatment, (ii) using surrogates for both lipid metabolism and inflammation as biomarkers or vascular inflammation imaging in future studies may contribute to a better understanding of the relative importance of different mechanisms of action, and (iii) comparative studies of further lipid lowering, anti-inflammation and a combination of both are crucial to identify effects that are specific or shared for each treatment strategy.
脂质代谢失调会引发炎症和免疫反应,导致动脉粥样硬化。相反,炎症也可能改变脂质代谢。在动脉粥样硬化二级预防的最近治疗策略中,抗炎和降脂治疗的益处已超出了目前的靶点。关于降脂治疗的抗炎作用是否独立于或不依赖于低密度脂蛋白胆固醇的降低,这存在争议。在本立场文件中,我们批判性地解释并整合了降脂治疗抗炎作用及其相关机制的实验和临床研究结果。我们强调:(i)除了通过不同机制降低胆固醇外,大多数降脂疗法还具有抗炎和免疫调节特性,降脂的抗炎反应可能与预测治疗效果有关;(ii)在未来的研究中,使用脂质代谢和炎症的替代标志物或血管炎症成像可能有助于更好地理解不同作用机制的相对重要性;(iii)进一步降低血脂、抗炎和两者联合的比较研究对于确定每种治疗策略的特定或共同作用至关重要。