Lipophilic Group-Modified Manganese(II)-Based Contrast Agents for Vascular and Hepatobiliary Magnetic Resonance Imaging
作者:Zhongyuan Cai、Lingling Jiang、Yingzi Cao、Shengxiang Fu、Shasha Wang、Yuting Jiang、Haojie Gu、Na Li、Xiaomin Fu、Shimin Tang、Jiang Zhu、Weidong Cao、Lei Zhong、Zhuzhong Cheng、Chunchao Xia、Su Lui、Bin Song、Qiyong Gong、Hua Ai
DOI:10.1021/acs.jmedchem.4c00120
日期:2024.3.28
N′,N′-tetraacetic acid (MnLs) were evaluated as vascular and hepatobiliary agents. The maximum signal intensities of the heart, liver, and kidneys were strongly correlated with log P, a key indicator of lipophilicity. The most lipophilic agent, MnL6, showed favorable relaxivity when binding with serum albumin, good vascular enhancement, rapid excretion, and reliable hepatobiliary phases comparable
有效的血管和肝脏增强以及更好的安全性是探索无钆肝胆造影剂的关键驱动力。在此,一种简单的策略提出,基于肝脏摄取和与血清白蛋白的相互作用部分取决于亲脂性的结构-活性关系,高亲脂性可能有利于依次增强血管和肝胆信号强度。因此,11种新合成的邻苯二胺锰-N , N , N ', N'-四乙酸(MnLs)衍生物被评估为血管和肝胆药物。心脏、肝脏和肾脏的最大信号强度与亲脂性的关键指标 log P密切相关。亲脂性最强的药物MnL6在与血清白蛋白结合时表现出良好的弛豫性、良好的血管增强作用、快速排泄以及与经典肝胆药物乙氧基苄基二亚乙基三胺五乙酸钆 (Gd-EOB-DTPA) 相当的可靠的肝胆相,用于体内肝脏肿瘤成像。抑制实验证实MnL6的肝靶向是由有机阴离子转运多肽介导的。