Inhibitory effects of water-soluble cationic manganese porphyrins on peroxynitrite-induced SOS response in Salmonella typhimurium TA4107/pSK1002

Noriko Motohashi, Ayumi Takahashi, Masaki Mifune, Yutaka Saito

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We have investigated the protective effects of water-soluble cationic Mn(III) porphyrins against peroxynitrite (ONOO-)-induced DNA damage in the cells of Salmonella typhimurium TA4107/pSK1002 and lipid peroxidation of red blood cell membranes. Mn(III) tetrakis (N-methylpyridinium-4-yl) porphine (TMPyP) and the brominated form, Mn(III) octabromo-tetrakis (N-methylpyridinium- 4-yl) porphine (OBTMPyP) effectively reduced the damage and peroxidation induced by N-morpholino sydnonimine (SIN-1), which gradually generates ONOO- from O2·- and·NO produced through hydrolysis. Mn(III)OBTMPyP became 10-fold more active than the non-brominated form. In the presence of authentic ONOO-, the Mn(III) porphyrins were ineffective against damage and strongly enhanced lipid peroxidation, while the coexistence of ascorbic acid inhibited peroxidation. Using a diode array spectrophotometry, the reactions of Mn(III)TMPyP with authentic ONOO- and SIN-1 were measured. Mn(III)TMPyP is known to be catalytic for ONOO - decomposition in the presence of antioxidants. OxoMn(IV)TMPyP with SIN-1 was rapidly reduced back to Mn(III) without adding any oxidants. Further, in the SIN-1 system, the concentration of NO2- and NO 3- were colorimetrically determined by Griess reaction based on the two-step diazotization. NO2- increased by addition of Mn(III) porphyrin and the ratio of NO2- to NO3- was 4-7 times higher than that (1.05) of SIN-1 alone. This result suggests that O2·- from SIN-1 acts as a reductant and·NO cogenerated is oxidized to NO2-, a primarily decomposition product of·NO. Under the pathological conditions where biological antioxidants are depleted and ONOO- and O2·- are extensively generated, the Mn(III) porphyrins will effectively cycle ONOO- decomposition using O 2·-.

Original languageEnglish
Pages (from-to)165-174
Number of pages10
JournalMutation Research - Fundamental and Molecular Mechanisms of Mutagenesis
Volume554
Issue number1-2
DOIs
Publication statusPublished - Oct 4 2004

Fingerprint

Peroxynitrous Acid
Porphyrins
Salmonella typhimurium
Manganese
Water
Lipid Peroxidation
Antioxidants
Spectrophotometry
Reducing Agents
Oxidants
Ascorbic Acid
DNA Damage
1-methylpyridinium
porphine
Hydrolysis
Erythrocytes
Cell Membrane

Keywords

  • Inhibitory effects
  • Manganese porphyrin
  • Peroxynitrite
  • Salmonella typhimurium
  • SOS response
  • Superoxide

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Molecular Biology

Cite this

Inhibitory effects of water-soluble cationic manganese porphyrins on peroxynitrite-induced SOS response in Salmonella typhimurium TA4107/pSK1002. / Motohashi, Noriko; Takahashi, Ayumi; Mifune, Masaki; Saito, Yutaka.

In: Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis, Vol. 554, No. 1-2, 04.10.2004, p. 165-174.

Research output: Contribution to journalArticle

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abstract = "We have investigated the protective effects of water-soluble cationic Mn(III) porphyrins against peroxynitrite (ONOO-)-induced DNA damage in the cells of Salmonella typhimurium TA4107/pSK1002 and lipid peroxidation of red blood cell membranes. Mn(III) tetrakis (N-methylpyridinium-4-yl) porphine (TMPyP) and the brominated form, Mn(III) octabromo-tetrakis (N-methylpyridinium- 4-yl) porphine (OBTMPyP) effectively reduced the damage and peroxidation induced by N-morpholino sydnonimine (SIN-1), which gradually generates ONOO- from O2·- and·NO produced through hydrolysis. Mn(III)OBTMPyP became 10-fold more active than the non-brominated form. In the presence of authentic ONOO-, the Mn(III) porphyrins were ineffective against damage and strongly enhanced lipid peroxidation, while the coexistence of ascorbic acid inhibited peroxidation. Using a diode array spectrophotometry, the reactions of Mn(III)TMPyP with authentic ONOO- and SIN-1 were measured. Mn(III)TMPyP is known to be catalytic for ONOO - decomposition in the presence of antioxidants. OxoMn(IV)TMPyP with SIN-1 was rapidly reduced back to Mn(III) without adding any oxidants. Further, in the SIN-1 system, the concentration of NO2- and NO 3- were colorimetrically determined by Griess reaction based on the two-step diazotization. NO2- increased by addition of Mn(III) porphyrin and the ratio of NO2- to NO3- was 4-7 times higher than that (1.05) of SIN-1 alone. This result suggests that O2·- from SIN-1 acts as a reductant and·NO cogenerated is oxidized to NO2-, a primarily decomposition product of·NO. Under the pathological conditions where biological antioxidants are depleted and ONOO- and O2·- are extensively generated, the Mn(III) porphyrins will effectively cycle ONOO- decomposition using O 2·-.",
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T1 - Inhibitory effects of water-soluble cationic manganese porphyrins on peroxynitrite-induced SOS response in Salmonella typhimurium TA4107/pSK1002

AU - Motohashi, Noriko

AU - Takahashi, Ayumi

AU - Mifune, Masaki

AU - Saito, Yutaka

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N2 - We have investigated the protective effects of water-soluble cationic Mn(III) porphyrins against peroxynitrite (ONOO-)-induced DNA damage in the cells of Salmonella typhimurium TA4107/pSK1002 and lipid peroxidation of red blood cell membranes. Mn(III) tetrakis (N-methylpyridinium-4-yl) porphine (TMPyP) and the brominated form, Mn(III) octabromo-tetrakis (N-methylpyridinium- 4-yl) porphine (OBTMPyP) effectively reduced the damage and peroxidation induced by N-morpholino sydnonimine (SIN-1), which gradually generates ONOO- from O2·- and·NO produced through hydrolysis. Mn(III)OBTMPyP became 10-fold more active than the non-brominated form. In the presence of authentic ONOO-, the Mn(III) porphyrins were ineffective against damage and strongly enhanced lipid peroxidation, while the coexistence of ascorbic acid inhibited peroxidation. Using a diode array spectrophotometry, the reactions of Mn(III)TMPyP with authentic ONOO- and SIN-1 were measured. Mn(III)TMPyP is known to be catalytic for ONOO - decomposition in the presence of antioxidants. OxoMn(IV)TMPyP with SIN-1 was rapidly reduced back to Mn(III) without adding any oxidants. Further, in the SIN-1 system, the concentration of NO2- and NO 3- were colorimetrically determined by Griess reaction based on the two-step diazotization. NO2- increased by addition of Mn(III) porphyrin and the ratio of NO2- to NO3- was 4-7 times higher than that (1.05) of SIN-1 alone. This result suggests that O2·- from SIN-1 acts as a reductant and·NO cogenerated is oxidized to NO2-, a primarily decomposition product of·NO. Under the pathological conditions where biological antioxidants are depleted and ONOO- and O2·- are extensively generated, the Mn(III) porphyrins will effectively cycle ONOO- decomposition using O 2·-.

AB - We have investigated the protective effects of water-soluble cationic Mn(III) porphyrins against peroxynitrite (ONOO-)-induced DNA damage in the cells of Salmonella typhimurium TA4107/pSK1002 and lipid peroxidation of red blood cell membranes. Mn(III) tetrakis (N-methylpyridinium-4-yl) porphine (TMPyP) and the brominated form, Mn(III) octabromo-tetrakis (N-methylpyridinium- 4-yl) porphine (OBTMPyP) effectively reduced the damage and peroxidation induced by N-morpholino sydnonimine (SIN-1), which gradually generates ONOO- from O2·- and·NO produced through hydrolysis. Mn(III)OBTMPyP became 10-fold more active than the non-brominated form. In the presence of authentic ONOO-, the Mn(III) porphyrins were ineffective against damage and strongly enhanced lipid peroxidation, while the coexistence of ascorbic acid inhibited peroxidation. Using a diode array spectrophotometry, the reactions of Mn(III)TMPyP with authentic ONOO- and SIN-1 were measured. Mn(III)TMPyP is known to be catalytic for ONOO - decomposition in the presence of antioxidants. OxoMn(IV)TMPyP with SIN-1 was rapidly reduced back to Mn(III) without adding any oxidants. Further, in the SIN-1 system, the concentration of NO2- and NO 3- were colorimetrically determined by Griess reaction based on the two-step diazotization. NO2- increased by addition of Mn(III) porphyrin and the ratio of NO2- to NO3- was 4-7 times higher than that (1.05) of SIN-1 alone. This result suggests that O2·- from SIN-1 acts as a reductant and·NO cogenerated is oxidized to NO2-, a primarily decomposition product of·NO. Under the pathological conditions where biological antioxidants are depleted and ONOO- and O2·- are extensively generated, the Mn(III) porphyrins will effectively cycle ONOO- decomposition using O 2·-.

KW - Inhibitory effects

KW - Manganese porphyrin

KW - Peroxynitrite

KW - Salmonella typhimurium

KW - SOS response

KW - Superoxide

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