Selective Disruption of Mitochondrial Thiol Redox State in Cells and In Vivo
作者:Lee M. Booty、Justyna M. Gawel、Filip Cvetko、Stuart T. Caldwell、Andrew R. Hall、John F. Mulvey、Andrew M. James、Elizabeth C. Hinchy、Tracy A. Prime、Sabine Arndt、Cristiane Beninca、Thomas P. Bright、Menna R. Clatworthy、John R. Ferdinand、Hiran A. Prag、Angela Logan、Julien Prudent、Thomas Krieg、Richard C. Hartley、Michael P. Murphy
DOI:10.1016/j.chembiol.2018.12.002
日期:2019.3
S-transferase substrate and Trx reductase (TrxR) inhibitor, 1-chloro-2,4-dinitrobenzene (CDNB) by conjugation to the mitochondria-targeting triphenylphosphonium cation. The result, MitoCDNB, is taken up by mitochondria where it selectively depletes the mitochondrial GSH pool, catalyzed by glutathioneS-transferases, and directly inhibits mitochondrial TrxR2 and peroxiredoxin 3, a peroxidase. Importantly, MitoCDNB
Fluorescent and radiolabeled triphenylphosphonium probes for imaging mitochondria
作者:Hushan Yuan、Hoonsung Cho、Howard H. Chen、Marcelo Panagia、David E. Sosnovik、Lee Josephson
DOI:10.1039/c3cc45802d
日期:——
Triphenylphosphonium-fluorochromes target mitochondria, have been 18F labeled and imaged using PET, and might serve as mitochondrial labels for the study of mitophagy.
Nrf2 is activated by disruption of mitochondrial thiol homeostasis but not by enhanced mitochondrial superoxide production
作者:Filip Cvetko、Stuart T. Caldwell、Maureen Higgins、Takafumi Suzuki、Masayuki Yamamoto、Hiran A. Prag、Richard C. Hartley、Albena T. Dinkova-Kostova、Michael P. Murphy
DOI:10.1074/jbc.ra120.016551
日期:2021.1
superoxide and hydrogenperoxide, or disruption of mitochondrial thiol homeostasis affect activation of the Nrf2 system in cells, which was assessed by Nrf2 protein level, nuclear translocation and expression of its target genes. We found that selective disruption of the mitochondrial glutathione pool and inhibition of its thioredoxin system by MitoCDNB led to Nrf2 activation, while using MitoPQ to enhance
The invention discloses creatine derivatives that are represented by Formula (I), Formula (II), and Formula (III); wherein Z is a functional group; Y is a mitochondrial targeting agent, a cationic ammonium group, or a polypeptide containing at least one positively charged amino acid residue; each R
1
is independently hydrogen, alkyl, or a phosphate group; R
2
a linker; R
3
is a spacer group; R
4
is hydrogen, alkyl, aryl, or heterocyclic; or R
4
and R
1
, or R
4
and R
3
, together with the nitrogen atoms to which they are attached form a heterocyclic ring, and W is hydrogen or alkyl.
The invention discloses creatine derivatives that are represented by Formula (I), Formula (II), and Formula (III); wherein Z is a functional group; Y is a mitochondrial targeting agent, a cationic ammonium group, or a polypeptide containing at least one positively charged amino acid residue; each R1 is independently hydrogen, alkyl, or a phosphate group; R2 a linker; R3 is a spacer group; R4 is hydrogen, alkyl, aryl, or heterocyclic; or R4 and R1, or R4 and R3, together with the nitrogen atoms to which they are attached form a heterocyclic ring, and W is hydrogen or alkyl.