PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11490098-3 2001 One of the post-receptor events shortly after the addition of TNF is the generation of the superoxide anion (O2-*). Superoxides 91-107 tumor necrosis factor Mus musculus 62-65 11490098-3 2001 One of the post-receptor events shortly after the addition of TNF is the generation of the superoxide anion (O2-*). Superoxides 109-113 tumor necrosis factor Mus musculus 62-65 11490098-4 2001 In the present study, we attempted to examine the role of O2-* in the regulation of mitochondrial membrane potential (Delta(Psi)m) and the release of cytochrome c (cyto c) in L929 cells after stimulation with TNF. Superoxides 58-60 tumor necrosis factor Mus musculus 209-212 11490098-5 2001 Challenge of cells with TNF (50 ng/ml) resulted in an early (30 min after the addition of TNF) increase in the production of O2-*. Superoxides 125-127 tumor necrosis factor Mus musculus 24-27 11490098-5 2001 Challenge of cells with TNF (50 ng/ml) resulted in an early (30 min after the addition of TNF) increase in the production of O2-*. Superoxides 125-127 tumor necrosis factor Mus musculus 90-93 11490098-6 2001 The use of mitochondrial electron transport chain inhibitors such as antimycin A and rotenone could, respectively, potentiate or suppress the TNF-mediated release of O2-* and cytotoxicity. Superoxides 166-168 tumor necrosis factor Mus musculus 142-145 11490098-7 2001 TNF also induced a late (>3 h after the addition of TNF) depolarization in the Delta(Psi)m. Reduction in the release of O2-* by rotenone (50 microM) or thenoyltrifluoroacetone (250 microM) suppressed both the TNF-mediated Delta(Psi)m depolarization and cyto c release. Superoxides 123-125 tumor necrosis factor Mus musculus 0-3 11490098-7 2001 TNF also induced a late (>3 h after the addition of TNF) depolarization in the Delta(Psi)m. Reduction in the release of O2-* by rotenone (50 microM) or thenoyltrifluoroacetone (250 microM) suppressed both the TNF-mediated Delta(Psi)m depolarization and cyto c release. Superoxides 123-125 tumor necrosis factor Mus musculus 55-58 11490098-7 2001 TNF also induced a late (>3 h after the addition of TNF) depolarization in the Delta(Psi)m. Reduction in the release of O2-* by rotenone (50 microM) or thenoyltrifluoroacetone (250 microM) suppressed both the TNF-mediated Delta(Psi)m depolarization and cyto c release. Superoxides 123-125 tumor necrosis factor Mus musculus 55-58 11490098-8 2001 However, increase in the production of O2-* by antimycin A (25 microM) only slightly enhanced the TNF effect in altering the Delta(Psi)m and the release of cyto c. Treating cells with antimycin A alone could not induce a reduction in Delta(Psi)m nor a release of cyto c. Taken together, our results indicate that TNF induced damage in mitochondria in L929 cells. Superoxides 39-41 tumor necrosis factor Mus musculus 98-101 11490098-8 2001 However, increase in the production of O2-* by antimycin A (25 microM) only slightly enhanced the TNF effect in altering the Delta(Psi)m and the release of cyto c. Treating cells with antimycin A alone could not induce a reduction in Delta(Psi)m nor a release of cyto c. Taken together, our results indicate that TNF induced damage in mitochondria in L929 cells. Superoxides 39-41 tumor necrosis factor Mus musculus 313-316 11490098-9 2001 Our data also show that an increase in the production of O2-* was important in the TNF cytotoxicity, but was not sufficient to mimic the action of TNF. Superoxides 57-59 tumor necrosis factor Mus musculus 83-86