期刊
ACS SENSORS
卷 6, 期 7, 页码 2523-2528出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssensors.1c00422
关键词
live cells; kidney tissue; carbonylated biomolecules; oxidative stress; hydrazine; fluorogenic assay
资金
- NIH [R15 GM102867, R15 CA227747, R01 DK093773, R01 DK087985]
- Eunice Kennedy Shriver National Institute of Child Health and Human Development
- NSF [CHE-0922815]
- Centre for the Study of Inflammatory Bowel Disease Grant [DK043351]
- Boston Area Diabetes and Endocrinology Research Center (BADERC) Award [DK057521]
- NIH shared instrumentation grant [1S10OD021577-01]
Drug-induced kidney injury often results in aborted clinical trials and drug withdrawals. A new fluorogenic assay using the TFCH sensor has been developed to detect mild forms of renal injury with greater sensitivity than standard assays. This sensor can be applied in live kidney cells and renal tissue, potentially aiding in preclinical decisions regarding unsafe drug candidates.
Drug-induced kidney injury frequently leads to aborted clinical trials and drug withdrawals. Sufficiently sensitive sensors capable of detecting mild signs of chemical insult in cell-based screening assays are critical to identifying and eliminating potential toxins in the preclinical stage. Oxidative stress is a common early manifestation of chemical toxicity, and biomolecule carbonylation is an irreversible repercussion of oxidative stress. Here, we present a novel fluorogenic assay using a sensor, TFCH, that responds to biomolecule carbonylation and efficiently detects modest forms of renal injury with much greater sensitivity than standard assays for nephrotoxins. We demonstrate that this sensor can be deployed in live kidney cells and in renal tissue. Our robust assay may help inform preclinical decisions to recall unsafe drug candidates. The application of this sensor in identifying and analyzing diverse pathologies is envisioned.
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