PHOSPHINE COMPOUND, PROCESS FOR PRODUCING THE SAME, AND PEROXIDE SCAVENGER USING THE SAME
申请人:Shioji Kosei
公开号:US20110015440A1
公开(公告)日:2011-01-20
The invention provides a novel peroxide scavenger comprising a phosphine compound represented by general formula [I]:
wherein Z
1
and Z
2
each represents a cyclic group; Ar represents an arylene group; R represents an aliphatic hydrocarbon group; Y represents phosphorus (P), nitrogen (N), or bismuth (Bi); and R
1
, R
2
, and R
3
each represents a cyclic group, particularly a peroxide scavenger that can scavenge peroxides such as reactive oxygen species which are generated in mitochondria upon exposure to oxidative stress and localized in mitochondria. The phosphine compound of the invention is oxidized by the peroxides localized in mitochondria to increase the fluorescence intensity, whereby the peroxides can be scavenged.
Phosphine compound, process for producing the same, and peroxide scavenger using the same
申请人:Shioji Kosei
公开号:US08420865B2
公开(公告)日:2013-04-16
The invention provides a novel peroxide scavenger comprising a phosphine compound represented by general formula [I]:
wherein Z1 and Z2 each represents a cyclic group; Ar represents an arylene group; R represents an aliphatic hydrocarbon group; Y represents phosphorus (P), nitrogen (N), or bismuth (Bi); and R1, R2, and R3 each represents a cyclic group, particularly a peroxide scavenger that can scavenge peroxides such as reactive oxygen species which are generated in mitochondria upon exposure to oxidative stress and localized in mitochondria. The phosphine compound of the invention is oxidized by the peroxides localized in mitochondria to increase the fluorescence intensity, whereby the peroxides can be scavenged.
In this study, a new type of fluorescence probe, diphenylpyrenylphosphine- conjugated alkyltriphenyl-phosphonium iodide which was accumulated in mitochondria, has been synthesized. This probe was detected peroxide in living cell. Comparison of the reactivity toward several peroxide indicated that the probe was existed in mitochondrial membrane. Using this probe, generation of peroxide in mitochondria of living cell was successfully visualized. (c) 2010 Elsevier Ltd. All rights reserved.