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μ3 Opiate receptor expression in lung and lung carcinoma: Ligand binding and coupling to nitric oxide release

  • C. Fimiani
  • , E. Arcuri
  • , A. Santoni
  • , C. M. Rialas
  • , T. V. Bilfinger
  • , D. Peter
  • , B. Salzet
  • , G. B. Stefano
  • SUNY Old Westbury
  • University of Rome La Sapienza
  • IRCCS Istituti fisioterapici ospitalieri - Istituto Regina Elena
  • Centre de Biologie Cellulaire
  • Stony Brook University

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

The μ3 opiate receptor subtype is expressed in human surgical specimens of both normal lung and non-small-cell lung carcinoma. Nitric oxide (NO) release is mediated through the μ3 receptor, and in lung carcinoma, morphine-stimulated NO release is significantly higher and prolonged than in normal lung. Using reverse transcriptase-polymerase chain reaction (RT-PCR) and Southern blot analysis we show that specific μ opioid receptor transcripts are present in lung carcinoma and other cells with the μ3 profile. Our findings identify a unique role for the μ3 opiate receptor in opiate-mediated NO release and suggest that endogenous opiates, through their release of NO, may play a role in cancer progression. Copyright (C) 1999 Elsevier Science Ireland Ltd.

Original languageEnglish
Pages (from-to)45-51
Number of pages7
JournalCancer Letters
Volume146
Issue number1
DOIs
StatePublished - Nov 1 1999

Keywords

  • Alternative splicing
  • Cancer
  • Lung
  • Morphine
  • Neoplasia
  • Nitric oxide
  • Opioid receptor transcript
  • μ

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