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Design of Mn porphyrins for treating oxidative stress injuries and their redox-based regulation of cellular transcriptional activities.

Publication ,  Journal Article
Batinic-Haberle, I; Spasojevic, I; Tse, HM; Tovmasyan, A; Rajic, Z; St Clair, DK; Vujaskovic, Z; Dewhirst, MW; Piganelli, JD
Published in: Amino Acids
January 2012

The most efficacious Mn(III) porphyrinic (MnPs) scavengers of reactive species have positive charges close to the Mn site, whereby they afford thermodynamic and electrostatic facilitation for the reaction with negatively charged species such as O (2) (•-) and ONOO(-). Those are Mn(III) meso tetrakis(N-alkylpyridinium-2-yl)porphyrins, more specifically MnTE-2-PyP(5+) (AEOL10113) and MnTnHex-2-PyP(5+) (where alkyls are ethyl and n-hexyl, respectively), and their imidazolium analog, MnTDE-2-ImP(5+) (AEOL10150, Mn(III) meso tetrakis(N,N'-diethylimidazolium-2-yl) porphyrin). The efficacy of MnPs in vivo is determined not only by the compound antioxidant potency, but also by its bioavailability. The former is greatly affected by the lipophilicity, size, structure, and overall shape of the compound. These porphyrins have the ability to both eliminate reactive oxygen species and impact the progression of oxidative stress-dependent signaling events. This will effectively lead to the regulation of redox-dependent transcription factors and the suppression of secondary inflammatory- and oxidative stress-mediated immune responses. We have reported on the inhibition of major transcription factors HIF-1α, AP-1, SP-1, and NF-κB by Mn porphyrins. While the prevailing mechanistic view of the suppression of transcription factors activation is via antioxidative action (presumably in cytosol), the pro-oxidative action of MnPs in suppressing NF-κB activation in nucleus has been substantiated. The magnitude of the effect is dependent upon the electrostatic (porphyrin charges) and thermodynamic factors (porphyrin redox ability). The pro-oxidative action of MnPs has been suggested to contribute at least in part to the in vitro anticancer action of MnTE-2-PyP(5+) in the presence of ascorbate, and in vivo when combined with chemotherapy of lymphoma. Given the remarkable therapeutic potential of metalloporphyrins, future studies are warranted to further our understanding of in vivo action/s of Mn porphyrins, particularly with respect to their subcellular distribution.

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Published In

Amino Acids

DOI

EISSN

1438-2199

Publication Date

January 2012

Volume

42

Issue

1

Start / End Page

95 / 113

Location

Austria

Related Subject Headings

  • Transcriptional Activation
  • Oxidative Stress
  • Oxidation-Reduction
  • Metalloporphyrins
  • Manganese
  • Humans
  • Biochemistry & Molecular Biology
  • Animals
  • 3404 Medicinal and biomolecular chemistry
  • 3205 Medical biochemistry and metabolomics
 

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Batinic-Haberle, I., Spasojevic, I., Tse, H. M., Tovmasyan, A., Rajic, Z., St Clair, D. K., … Piganelli, J. D. (2012). Design of Mn porphyrins for treating oxidative stress injuries and their redox-based regulation of cellular transcriptional activities. Amino Acids, 42(1), 95–113. https://doi.org/10.1007/s00726-010-0603-6
Batinic-Haberle, Ines, Ivan Spasojevic, Hubert M. Tse, Artak Tovmasyan, Zrinka Rajic, Daret K. St Clair, Zeljko Vujaskovic, Mark W. Dewhirst, and Jon D. Piganelli. “Design of Mn porphyrins for treating oxidative stress injuries and their redox-based regulation of cellular transcriptional activities.Amino Acids 42, no. 1 (January 2012): 95–113. https://doi.org/10.1007/s00726-010-0603-6.
Batinic-Haberle I, Spasojevic I, Tse HM, Tovmasyan A, Rajic Z, St Clair DK, et al. Design of Mn porphyrins for treating oxidative stress injuries and their redox-based regulation of cellular transcriptional activities. Amino Acids. 2012 Jan;42(1):95–113.
Batinic-Haberle, Ines, et al. “Design of Mn porphyrins for treating oxidative stress injuries and their redox-based regulation of cellular transcriptional activities.Amino Acids, vol. 42, no. 1, Jan. 2012, pp. 95–113. Pubmed, doi:10.1007/s00726-010-0603-6.
Batinic-Haberle I, Spasojevic I, Tse HM, Tovmasyan A, Rajic Z, St Clair DK, Vujaskovic Z, Dewhirst MW, Piganelli JD. Design of Mn porphyrins for treating oxidative stress injuries and their redox-based regulation of cellular transcriptional activities. Amino Acids. 2012 Jan;42(1):95–113.
Journal cover image

Published In

Amino Acids

DOI

EISSN

1438-2199

Publication Date

January 2012

Volume

42

Issue

1

Start / End Page

95 / 113

Location

Austria

Related Subject Headings

  • Transcriptional Activation
  • Oxidative Stress
  • Oxidation-Reduction
  • Metalloporphyrins
  • Manganese
  • Humans
  • Biochemistry & Molecular Biology
  • Animals
  • 3404 Medicinal and biomolecular chemistry
  • 3205 Medical biochemistry and metabolomics