Chen Tongqing, Wang Yiming, Yang Jia-Lin, Ni Jiahui, You Keyuan, Li Xuesong, Song Yuping, Wang Xu, Li Jian, Shen Xiaoyan, Fan Yujuan, You Yan
Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China.
Department of Cardiology, Worldwide Medical Center, Huashan Hospital, Fudan University, Shanghai, China.
Pharmacol Res. 2024 Dec;210:107516. doi: 10.1016/j.phrs.2024.107516. Epub 2024 Nov 26.
Atherosclerotic-related acute cardiovascular events remain a leading cause of mortality worldwide, yet there are currently no pharmacological interventions available to address plaque formation or plaque rupture (PR). Here we reported that gentisic acid (GA) exerted potent therapeutic effects on plaque formation and PR in a dose-dependent manner by inhibiting LRP6-mediated macrophage apoptosis. By using the CETSA assay and DARTS assay, we identified sorting nexin 10 (SNX10) as the direct target of GA. The binding of GA to SNX10 disrupts the interaction between SNX10 and LRP6, leading to the degradation of LRP6. The downregulation of LRP6 then significantly attenuated the activation of Wnt/β-catenin pathway to exert an inhibitory effect on apoptosis. Moreover, the specific depletion of SNX10 in macrophages significantly reduced LRP6 levels and subsequently macrophage apoptosis both in vivo and in vitro. In conclusion, our findings not only suggest that GA may serve as a potential therapeutic candidate for the prevention of atherosclerosis and acute cardiovascular events caused by PR, but also confirm the druggability of SNX10 as a promising therapeutic target for atherosclerotic rupture.
动脉粥样硬化相关的急性心血管事件仍然是全球范围内主要的死亡原因,然而目前尚无可用的药物干预措施来解决斑块形成或斑块破裂(PR)问题。在此,我们报告了龙胆酸(GA)通过抑制LRP6介导的巨噬细胞凋亡,以剂量依赖的方式对斑块形成和PR发挥强大的治疗作用。通过使用CETSA分析和DARTS分析,我们确定分选连接蛋白10(SNX10)是GA的直接靶点。GA与SNX10的结合破坏了SNX10与LRP6之间的相互作用,导致LRP6降解。LRP6的下调随后显著减弱Wnt/β-连环蛋白通路的激活,从而对细胞凋亡产生抑制作用。此外,巨噬细胞中SNX10的特异性缺失在体内和体外均显著降低了LRP6水平,并随后减少了巨噬细胞凋亡。总之,我们的研究结果不仅表明GA可能作为预防动脉粥样硬化和PR引起的急性心血管事件的潜在治疗候选药物,而且证实了SNX10作为动脉粥样硬化破裂的有前景治疗靶点的可成药性。