Lung-protective effects of the metalloporphyrinic peroxynitrite decomposition catalyst WW-85 in interleukin-2 induced toxicity

  • Dirk M. Maybauer
  • , Marc O. Maybauer
  • , Csaba Szabó
  • , Martin Westphal
  • , Lillian D. Traber
  • , Perenlei Enkhbaatar
  • , Kanneganti G.K. Murthy
  • , Yoshimitsu Nakano
  • , Andrew L. Salzman
  • , David N. Herndon
  • , Daniel L. Traber

Research output: Contribution to journalArticlepeer-review

Abstract

Recombinant interleukin-2 (IL-2) therapy for malignancy is associated with a pulmonary vascular leakage syndrome (VLS) similar to that seen in sepsis. We investigated the possibility that the IL-2-induced VLS may be associated with the release of peroxynitrite (ONOO-), and used a model of IL-2-induced VLS in sheep to test the effects of the ONOO- decomposition catalyst WW-85. Eighteen sheep were chronically instrumented and randomly divided into three groups (n = 6 per group): sham: lactated Ringer's solution, control: IL-2, and treatment: IL-2 and WW-85. Treatment with WW-85 significantly improved lung transvascular fluid flux, decreased lipid peroxidation, limited iNOS as well as PAR intensity, prevented tachycardia, and attenuated the increase in core body temperature resulting from IL-2 treatment. These findings suggest that ONOO- plays a pivotal role in the pathology of IL-2-induced pulmonary VLS, and that WW-85 may become a useful treatment option.

Original languageEnglish (US)
Pages (from-to)786-791
Number of pages6
JournalBiochemical and Biophysical Research Communications
Volume377
Issue number3
DOIs
StatePublished - Dec 19 2008

Keywords

  • Cancer therapy
  • Lung lymph flow
  • Nitric-oxide
  • Transvascular fluid flux
  • Vascular leakage

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

Fingerprint

Dive into the research topics of 'Lung-protective effects of the metalloporphyrinic peroxynitrite decomposition catalyst WW-85 in interleukin-2 induced toxicity'. Together they form a unique fingerprint.

Cite this