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- W3166804802 startingPage "87" @default.
- W3166804802 abstract "Small molecules can be physicochemically targeted to the mitochondrial matrix using the lipophilic alkyltriphenylphosphonium (TPP) group. Once in the mitochondria the TPP conjugate can detect or influence processes within the mitochondrial matrix directly. Alternatively, the conjugate can behave as a prodrug, which is activated by release from the TPP group either using an internal or external instruction. Small molecules can be designed that can be used in any cell line, tissue, or whole organism, allow for temporal control, and can be applied in a reversible dose-dependent fashion. An example is the detection and quantification of hydrogen peroxide in mitochondria of whole living organisms by MitoB. Hydrogen peroxide produced within the mitochondrial matrix is involved in signaling and implicated in the oxidative damage associated with aging and a wide range of conditions including cardiovascular disease, neurodegeneration, and cancer. MitoB accumulates in mitochondria and is converted into the exomarker, MitoP, by hydrogen peroxide in the mitochondrial matrix. The hydrogen peroxide concentration is determined from the ratio of MitoP to MitoB after a period of incubation, and this ratio is determined by mass spectrometry using d15-MitoP and d15-MitoB as internal standards. Here we discuss the targeting of small molecules to the mitochondrial matrix using TPP, and describe the synthesis of MitoB and MitoP and the deuterated standards necessary for quantification of hydrogen peroxide in the mitochondrial matrix of whole living organisms." @default.
- W3166804802 created "2021-06-22" @default.
- W3166804802 creator A5033653238 @default.
- W3166804802 creator A5062511010 @default.
- W3166804802 creator A5082066659 @default.
- W3166804802 creator A5082579084 @default.
- W3166804802 date "2021-01-01" @default.
- W3166804802 modified "2023-10-12" @default.
- W3166804802 title "Insights on Targeting Small Molecules to the Mitochondrial Matrix and the Preparation of MitoB and MitoP as Exomarkers of Mitochondrial Hydrogen Peroxide" @default.
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