Drug-induced kidney injury (DIKI) is a significant contributor of both acute and chronic kidney injury and remains a major concern in drug development and clinical care. However, current clinical diagnostic methods often fail to accurately and timely detect nephrotoxicity. This study reports the development of activatable molecular urinary reporters (MURs) that are able to specifically detect urinary biomarkers including γ-glutamyl transferase (GGT), alanine aminopeptidase (AAP), and N-acetyl-β-d-glucosaminidase (NAG). By virtue of their discrete absorption and emission properties, the mixture of MURs can serve as a cocktail sensor for multiplex optical urinalysis in the mouse models of drug-induced acute kidney injury (AKI) and chronic kidney disease (CKD). The MURs cocktail not only detects nephrotoxicity earlier than the tested clinical diagnostic methods in drug-induced AKI and CKD mice models, but also possesses a higher diagnostic accuracy. Therefore, MURs hold great promise for detection of kidney function in both preclinical drug screening and clinical settings.
这项研究报告了一种可激活的分子尿液报告分子(MURs)的开发,这些分子能够特异性检测包括γ-谷
氨酰转移酶(GGT)、丙
氨酸
氨基肽酶(
AAP)和
N-乙酰-β-D-
氨基葡萄糖苷酶(NAG)在内的尿液
生物标志物。由于它们具有独特的吸收和发射特性,MURs混合物可以作为多重光学尿液分析的鸡尾酒传感器,用于药物诱导的急性肾损伤(AKI)和慢性肾病(CKD)的小鼠模型研究。
在药物诱导的AKI和CKD小鼠模型中,MURs鸡尾酒不仅能比现有的临床诊断方法更早地检测到肾毒性,而且具有更高的诊断准确性。因此,MURs在临床前药物筛选和临床应用中对肾功能的检测具有广阔的应用前景。