Protective effects of hemin and tetrakis(4-benzoic acid)porphyrin on bacterial mutagenesis and mouse skin carcinogenesis induced by 7,12-dimethylbenz[a]anthracene

WonYoon Chung, Jong Min Lee, Won Young Lee, Young Joon Surh, Kwang Kyun Park

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Porphyrins which are widespread in nature can interfere with the actions of certain carcinogens and mutagens, and have also been used clinically in photodynamic therapy (PDT) of tumors. Porphyrins such as chlorophyll, chlorophyllin (CHL) and hemin are known to inactivate various mutagens by forming complexes with them. Tetrakis(4-benzoic acid)porphyrin (TBAP) has been developed as a photosensitizer for PDT and its metal complex, MnTBAP has been shown to be efficacious in a variety of in vitro and in vivo oxidative stress models of human diseases. In the present study, we have found that TBAP and hemin exert concentration-related inhibition of his+ reversion in Salmonella typhimurium TA 100 induced by 7,12-dimethylbenz[a]anthracene (DMBA), and significantly reduced both incidence and multiplicity of skin tumors when topically applied prior to treatment of 12-O-tetradecanoylphorbol-13-acetate in female ICR mice. Covalent DNA binding of DMBA in mouse skin was also significantly inhibited by topical application of TBAP or hemin as well as CHL. These results suggest the chemopreventive potential of compounds containing a porphyrin nucleus. (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)139-145
Number of pages7
JournalMutation Research - Genetic Toxicology and Environmental Mutagenesis
Volume472
Issue number1-2
DOIs
Publication statusPublished - 2000 Dec 20

Fingerprint

Hemin
Porphyrins
Mutagenesis
9,10-Dimethyl-1,2-benzanthracene
Carcinogenesis
Photochemotherapy
Mutagens
Skin
Inbred ICR Mouse
Photosensitizing Agents
Coordination Complexes
Tetradecanoylphorbol Acetate
Salmonella typhimurium
Chlorophyll
Carcinogens
Neoplasms
Oxidative Stress
DNA
Incidence
tetrakis(4-benzoic acid)porphyrin

All Science Journal Classification (ASJC) codes

  • Genetics
  • Health, Toxicology and Mutagenesis

Cite this

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title = "Protective effects of hemin and tetrakis(4-benzoic acid)porphyrin on bacterial mutagenesis and mouse skin carcinogenesis induced by 7,12-dimethylbenz[a]anthracene",
abstract = "Porphyrins which are widespread in nature can interfere with the actions of certain carcinogens and mutagens, and have also been used clinically in photodynamic therapy (PDT) of tumors. Porphyrins such as chlorophyll, chlorophyllin (CHL) and hemin are known to inactivate various mutagens by forming complexes with them. Tetrakis(4-benzoic acid)porphyrin (TBAP) has been developed as a photosensitizer for PDT and its metal complex, MnTBAP has been shown to be efficacious in a variety of in vitro and in vivo oxidative stress models of human diseases. In the present study, we have found that TBAP and hemin exert concentration-related inhibition of his+ reversion in Salmonella typhimurium TA 100 induced by 7,12-dimethylbenz[a]anthracene (DMBA), and significantly reduced both incidence and multiplicity of skin tumors when topically applied prior to treatment of 12-O-tetradecanoylphorbol-13-acetate in female ICR mice. Covalent DNA binding of DMBA in mouse skin was also significantly inhibited by topical application of TBAP or hemin as well as CHL. These results suggest the chemopreventive potential of compounds containing a porphyrin nucleus. (C) 2000 Elsevier Science B.V.",
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Protective effects of hemin and tetrakis(4-benzoic acid)porphyrin on bacterial mutagenesis and mouse skin carcinogenesis induced by 7,12-dimethylbenz[a]anthracene. / Chung, WonYoon; Lee, Jong Min; Lee, Won Young; Surh, Young Joon; Park, Kwang Kyun.

In: Mutation Research - Genetic Toxicology and Environmental Mutagenesis, Vol. 472, No. 1-2, 20.12.2000, p. 139-145.

Research output: Contribution to journalArticle

TY - JOUR

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AU - Chung, WonYoon

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AU - Lee, Won Young

AU - Surh, Young Joon

AU - Park, Kwang Kyun

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AB - Porphyrins which are widespread in nature can interfere with the actions of certain carcinogens and mutagens, and have also been used clinically in photodynamic therapy (PDT) of tumors. Porphyrins such as chlorophyll, chlorophyllin (CHL) and hemin are known to inactivate various mutagens by forming complexes with them. Tetrakis(4-benzoic acid)porphyrin (TBAP) has been developed as a photosensitizer for PDT and its metal complex, MnTBAP has been shown to be efficacious in a variety of in vitro and in vivo oxidative stress models of human diseases. In the present study, we have found that TBAP and hemin exert concentration-related inhibition of his+ reversion in Salmonella typhimurium TA 100 induced by 7,12-dimethylbenz[a]anthracene (DMBA), and significantly reduced both incidence and multiplicity of skin tumors when topically applied prior to treatment of 12-O-tetradecanoylphorbol-13-acetate in female ICR mice. Covalent DNA binding of DMBA in mouse skin was also significantly inhibited by topical application of TBAP or hemin as well as CHL. These results suggest the chemopreventive potential of compounds containing a porphyrin nucleus. (C) 2000 Elsevier Science B.V.

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