Inactivation of anthracyclines by serum heme proteins

Brett A. Wagner, Lynn M. Teesch, Garry R. Buettner, Bradley E. Britigan, C. Patrick Burns, Krzysztof J. Reszka

Research output: Contribution to journalArticle

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Abstract

We have previously shown that the anticancer agent doxorubicin undergoes oxidation and inactivation when exposed to myeloperoxidase-containing human leukemia HL-60 cells, or to isolated myeloperoxidase, in the presence of hydrogen peroxide and nitrite. In the current study we report that commercial fetal bovine serum (FBS) alone oxidizes doxorubicin in the presence of hydrogen peroxide and that nitrite accelerates this oxidation. The efficacy of inactivation was dependent on the concentration of serum present; no reaction was observed when hydrogen peroxide or serum was omitted. Peroxidase activity assays, based on oxidation of 3,3′,5,5′-tetramethylbenzidine, confirmed the presence of a peroxidase in the sera from several suppliers. The peroxidative activity was contained in the > 10000 MW fraction. We also found that hemoglobin, a heme protein likely to be present in commercial FBS, is capable of oxidizing doxorubicin in the presence of hydrogen peroxide and that nitrite further stimulates the reaction. In contrast to intact doxorubicin, the serum + hydrogen peroxide + nitrite treated drug appeared to be nontoxic for PC3 human prostate cancer cells. Together, this study shows that (pseudo)peroxidases present in sera catalyze oxidation of doxorubicin by hydrogen peroxide and that this diminishes the tumoricidal activity of the anthracycline, at least in in vitro settings. Finally, this study also points out that addition of H2O2 to media containing FBS will stimulate peroxidase-type of reactions, which may affect cytotoxic properties of studied compounds.

Original languageEnglish (US)
Pages (from-to)920-926
Number of pages7
JournalChemical Research in Toxicology
Volume20
Issue number6
DOIs
StatePublished - Jun 1 2007

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Hemeproteins
Anthracyclines
Hydrogen Peroxide
Blood Proteins
Doxorubicin
Peroxidase
Nitrites
Serum
Oxidation
Peroxidases
Antineoplastic Agents
HL-60 Cells
Assays
Hemoglobins
Cells
Prostatic Neoplasms
Leukemia
Pharmaceutical Preparations

ASJC Scopus subject areas

  • Toxicology

Cite this

Wagner, B. A., Teesch, L. M., Buettner, G. R., Britigan, B. E., Burns, C. P., & Reszka, K. J. (2007). Inactivation of anthracyclines by serum heme proteins. Chemical Research in Toxicology, 20(6), 920-926. https://doi.org/10.1021/tx700002f

Inactivation of anthracyclines by serum heme proteins. / Wagner, Brett A.; Teesch, Lynn M.; Buettner, Garry R.; Britigan, Bradley E.; Burns, C. Patrick; Reszka, Krzysztof J.

In: Chemical Research in Toxicology, Vol. 20, No. 6, 01.06.2007, p. 920-926.

Research output: Contribution to journalArticle

Wagner, BA, Teesch, LM, Buettner, GR, Britigan, BE, Burns, CP & Reszka, KJ 2007, 'Inactivation of anthracyclines by serum heme proteins', Chemical Research in Toxicology, vol. 20, no. 6, pp. 920-926. https://doi.org/10.1021/tx700002f
Wagner, Brett A. ; Teesch, Lynn M. ; Buettner, Garry R. ; Britigan, Bradley E. ; Burns, C. Patrick ; Reszka, Krzysztof J. / Inactivation of anthracyclines by serum heme proteins. In: Chemical Research in Toxicology. 2007 ; Vol. 20, No. 6. pp. 920-926.
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