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Ho HK, Jia Y, Coe KJ, Gao Q, Doneanu CE, Hu Z, Bammler TK, Beyer RP, Fausto N, Bruschi SA, Nelson SD: Cytosolic heat shock proteins and heme oxygenase-1 are preferentially induced in response to specific and localized intramitochondrial damage by tetrafluoroethylcysteine. Biochem Pharmacol. 2006 Jun 28;72(1):80-90. Epub 2006 Mar 29.
Previously, S-(1,1,2,2-tetrafluoroethyl)-l-cysteine (TFEC) was shown to mediate cytotoxicity by covalently modifying a well-defined group of intramitochondrial proteins including aconitase, alpha-ketoglutarate dehydrogenase (alphaKGDH) subunits, heat shock protein 60 (HSP60) and mitochondrial HSP70 (mtHSP70).
Results of these studies revealed a HSP response that was significantly stronger than other well-characterized hepatotoxicants including acetaminophen, diquat and rotenone. |
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