2007
DOI: 10.1016/j.bcp.2007.06.009
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Existence of a distinct concentration window governing daunorubicin-induced mammalian liver mitotoxicity—implication for determining therapeutic window

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Cited by 8 publications
(6 citation statements)
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“…For instance, daunorubicin increases the mitochondrial respiration at low concentrations and inhibits it at higher concentrations, thus acting as a mitotoxic drug. 40 Recently, a liposomal daunorubicin targeting mitochondria has been shown to exert high cytotoxicity in MCF7-Adr cells in association with the calcium channel blocker amlodipine, by disrupting the mitochondrial potential, releasing the cytochrome c, and activating the caspases cascade. 41 This finding confirms that the mitochondrial metabolism is critical for the survival of drug-resistant cells and is in keeping with what we observed in HT29-dx, where the TCA cycle, the electron transport across complex I, and the synthesis of ATP were higher than in HT29 cells.…”
Section: ■ Discussionmentioning
confidence: 99%
“…For instance, daunorubicin increases the mitochondrial respiration at low concentrations and inhibits it at higher concentrations, thus acting as a mitotoxic drug. 40 Recently, a liposomal daunorubicin targeting mitochondria has been shown to exert high cytotoxicity in MCF7-Adr cells in association with the calcium channel blocker amlodipine, by disrupting the mitochondrial potential, releasing the cytochrome c, and activating the caspases cascade. 41 This finding confirms that the mitochondrial metabolism is critical for the survival of drug-resistant cells and is in keeping with what we observed in HT29-dx, where the TCA cycle, the electron transport across complex I, and the synthesis of ATP were higher than in HT29 cells.…”
Section: ■ Discussionmentioning
confidence: 99%
“…One of the widespread methods in detecting ROS production by mitochondria is based on 2′ 7′- dichloroflourescein (H2DCFDA) oxidation [35] H2DCFDA, an uncharged, cell-permeable fluorescent probe readily diffuses into cells and gets hydrolyzed by intracellular esterases to yield H2DCF, which is trapped inside the cell. Then it is oxidized from the nonfluorescent form to a highly fluorescent compound dichlorofluoresce in by hydrogen peroxide (H 2 O 2 ) or other low-molecular-weight peroxides produced in the cells.…”
Section: Methodsmentioning
confidence: 99%
“…The mechanism of DNR-induced toxicity is reported to be mainly linked to oxidative stress. , The quinone and hydroquinone groups in DNR are converted to radical species by oxoreductive enzymes. Thereafter, semiquinone generates excess reactive oxygen species (ROS), such as superoxide anion (O 2 •– ), hydrogen peroxide (H 2 O 2 ), and hydroxyl radical ( • OH), leading to lipid peroxidation and cell damage . The overproduction of ROS can not only cause cell damage but also amplify inflammation .…”
Section: Introductionmentioning
confidence: 95%
“…•− ), hydrogen peroxide (H 2 O 2 ), and hydroxyl radical ( • OH), leading to lipid peroxidation and cell damage. 12 The overproduction of ROS can not only cause cell damage but also amplify inflammation. 13 Activated Kupffer cells secrete inflammatory cytokines, such as tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6), which recruit both neutrophils and macrophages to expand the inflammatory response.…”
Section: Introductionmentioning
confidence: 99%