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生物响应性宏环 gadolinium (III) 复合物的最新进展,用于MR成像和治疗

Ming Liu^1,2, Jingpi Gao¹, Yang Zhang¹

¹School of Future Technology, University of Chinese Academy of Sciences (UCAS), Beijing 101408, P. R. China. tangjianhong@ucas.ac.cn.

Dalton transactions (Cambridge, England : 2003)

|March 14, 2025

概括

生物响应的宏环加多 (Gd(III)) 对比剂提供了增强的MRI特异性. 本综述强调了针对pH,化学物质和酶的药物,以改善生物医学成像和治疗监测.

科学领域:

医疗成像医学成像
纳米技术纳米技术
生物化学生物化学

背景情况:

磁共振 (MR) 成像依赖于水质子放松时间 (T1和T2) 来生成图像,但内在对比度通常是有限的.
临床MR诊断经常需要对比介质 (30-45%) 来增强灵敏度和特异性.
目前的加多 (III) (Gd(III)) 对比剂是非特异性的,线性复合物由于潜在的自由Gd(III) 释放而引发安全问题,有利于宏观环形替代品.

研究的目的:

审查最近 (2019-2024) 的生物反应性宏环Gd (III) 对比剂的进展.
专注于旨在应对pH,化学物质和酶等特定生物变化的药物.
要总结分子设计,放松性反应,以及在体外和体内MRI成像中的应用.

主要方法:

对2019年至2024年间开发的生物响应性宏环Gd(III) 对比剂的文献综述.
对有针对性的生物标志物检测分子设计策略的分析.
评估对生物刺激的反应中的质子放松性变化.

主要成果:

开发新型宏环Gd(III) 复合物,对pH,化学环境和酶活性产生特定反应.
在各种生物医学疾病的MRI成像中表现出增强的灵敏度和特异性.
在体外和体内环境中成功应用,用于疾病监测和治疗干预.

结论:

生物响应的宏环Gd (III) 剂在向MR成像方面取得了重大进展.
这些药物改善了动态生物过程的检测,并允许精确监测疗法.
未来的研究重点是为更广泛的临床应用和增强的安全配置文件优化分子设计.

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