Endoplasmic reticulum-targeted two-photon turn-on fluorescent probe for nitroreductase in tumor cells and tissues

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
An XuWeiying Lin

Abstract

Hypoxia conditions could increase the activity of intracellular nitroreductase (NTR) and lead to many malignant diseases. Therefore, monitoring the activity of NTR is of great significance to study the related diseases. Organelles play crucial roles in the metabolism of living cells. In these organelles, the endoplasmic reticulum (ER) possesses single membrane structure, and it is the largest organelle in the cell. ER performs the synthesis, processing and modification of proteins and lipid, stabilizing the intracellular Ca2+ concentration and other physiological functions in living cells. Therefore, it is of great significance to develop ER-target probes in living system. Toward this goal, a new endoplasmic reticulum-targeted two-photon fluorescence turn-on NTR probe Na-NTR-ER is designed and synthesized. Probe Na-NTR-ER has been proved to display high sensitivity (36 ng/mL) and selectivity to NTR. Particularly, probe Na-NTR-ER has been successfully applied for the monitoring of NTR in ER with a high the Pearson's colocalization coefficient as 0.90 in HeLa cells and cancerous mouse tissues up to the depth of 100 μm with significant fluorescence signals.

Citations

Aug 1, 2019·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Tingxin YangWeiying Lin
Mar 7, 2020·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Shunping ZangXiaoling Zhang
Dec 9, 2020·Journal of Controlled Release : Official Journal of the Controlled Release Society·Yingying ShiJian You
Jan 4, 2020·Bioorganic & Medicinal Chemistry·Zijian ZhangShiguo Sun
Apr 28, 2021·Analytical Methods : Advancing Methods and Applications·Abdul Hadi MehmoodWeiying Lin
Jun 16, 2021·Journal of Pharmaceutical and Biomedical Analysis·Jian QiaoDahong Li

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