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• W1996258352 abstract "Suberoyl bishydroxamic acid (SBHA) as a histone deacetylase (HDAC) inhibitor can induce apoptosis through the formation of reactive oxygen species (ROS). However, there is no report about the regulation of ROS and antioxidant enzymes in SBHA-treated lung cancer cells. Here, we investigated the toxicological effects of SBHA on the regulations of ROS, glutathione (GSH), and antioxidant enzymes, especially thioredoxin (Trx) in A549 lung cancer cells. SBHA inhibited the growth of A549 cells in time- and dose-dependent manners, and it induced apoptosis which accompanied by the loss of mitochondrial membrane potential (MMP; ΔΨm). SBHA significantly increased ROS levels including O2 •− level at 72 h whereas it decreased ROS levels at the early time points (30 min to 3 h). SBHA also induced GSH depletion at 24 and 72 h. N-acetyl cysteine (NAC; a well-known antioxidant) prevented apoptotic cell death and GSH depletion via decreasing ROS in SBHA-treated A549 cells. In addition, SBHA changed the levels of antioxidant-related proteins, especially Trx1. The expression and activity of Trx1 in A549 cells were reduced by SBHA. While the downregulation of Trx1 enhanced cell death, ROS level, and GSH depletion in SBHA-treated A549 cells, the overexpression of Trx1 decreased ROS level in these cells without the prevention of cell death and GSH depletion. In conclusion, SBHA-induced A549 cell death was influenced by changes in ROS and GSH levels. The basal status of Trx1 among other antioxidant proteins was closely correlated with the survival of A549 cells." @default.
• W1996258352 created "2016-06-24" @default.
• W1996258352 creator A5009276184 @default.
• W1996258352 creator A5068413798 @default.
• W1996258352 creator A5079501124 @default.
• W1996258352 date "2014-12-24" @default.
• W1996258352 modified "2023-09-23" @default.
• W1996258352 title "Reactive oxygen species, glutathione, and thioredoxin influence suberoyl bishydroxamic acid-induced apoptosis in A549 lung cancer cells" @default.
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• W1996258352 doi "https://doi.org/10.1007/s13277-014-2978-6" @default.
• W1996258352 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/25537089" @default.
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