Loss of thioredoxin reductase function in a mouse stroke model disclosed by a two-photon fluorescent probe.
2020
Thioredoxin reductase (TrxR) enzymes are critical in regulating redox homeostasis in cells. We report the first two-photon fluorescent probe of mammalian TrxR (TP-TRFS). TP-TRFS retains high specificity in recognizing TrxR. More importantly, the two-photon absorbing character of TP-TRFS enables it to be used in vivo. With the aid of TP-TRFS, a remarkable decline of the TrxR function was observed in the brain of a mouse model of stroke for the first time, providing a mechanistic link of TrxR dysfunction with stroke.
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