Targeting the tumor and its microenvironment by a dual-function decoy Met receptor

Paolo Michieli, Massimiliano Mazzone, Cristina Basilico, Silvia Cavassa, Antonino Sottile, Luigi Naldini, Paolo M. Comoglio

Research output: Contribution to journalArticlepeer-review

Abstract

Met, the receptor for hepatocyte growth factor (HGF), is activated in human cancer by both ligand-dependent and -independent mechanisms. We engineered a soluble Met receptor (decoy Met) that interferes with both HGF binding to Met and Met homodimerization. By lentiviral vector technology, we achieved local or systemic delivery of decoy Met in mice. We provide evidence that in vivo expression of decoy Met (1) inhibits tumor cell proliferation and survival in a variety of human xenografts, (2) impairs tumor angiogenesis by preventing host vessel arborization, (3) suppresses or prevents the formation of spontaneous metastases, and (4) synergizes with radiotherapy in inducing tumor regression, without (5) affecting housekeeping physiological functions in the adult animal.

Original languageEnglish
Pages (from-to)61-73
Number of pages13
JournalCancer Cell
Volume6
Issue number1
DOIs
Publication statusPublished - Jul 2004

ASJC Scopus subject areas

  • Cancer Research
  • Cell Biology
  • Oncology

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